WebSVN – QNX 8.QNX8 LLVM/Clang compiler suite – Blame – /llvm-build/x86_64/include/clang/AST/OpenMPClause.h

Rev	Author	Line No.	Line
14	pmbaty	1	//===- OpenMPClause.h - Classes for OpenMP clauses --------------- C++ --===//
		2	//
		3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
		4	// See https://llvm.org/LICENSE.txt for license information.
		5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
		6	//
		7	//===----------------------------------------------------------------------===//
		8	//
		9	/// \file
		10	/// This file defines OpenMP AST classes for clauses.
		11	/// There are clauses for executable directives, clauses for declarative
		12	/// directives and clauses which can be used in both kinds of directives.
		13	//
		14	//===----------------------------------------------------------------------===//
		15
		16	#ifndef LLVM_CLANG_AST_OPENMPCLAUSE_H
		17	#define LLVM_CLANG_AST_OPENMPCLAUSE_H
		18
		19	#include "clang/AST/ASTFwd.h"
		20	#include "clang/AST/Decl.h"
		21	#include "clang/AST/DeclarationName.h"
		22	#include "clang/AST/Expr.h"
		23	#include "clang/AST/NestedNameSpecifier.h"
		24	#include "clang/AST/Stmt.h"
		25	#include "clang/AST/StmtIterator.h"
		26	#include "clang/Basic/LLVM.h"
		27	#include "clang/Basic/OpenMPKinds.h"
		28	#include "clang/Basic/SourceLocation.h"
		29	#include "llvm/ADT/ArrayRef.h"
		30	#include "llvm/ADT/MapVector.h"
		31	#include "llvm/ADT/PointerIntPair.h"
		32	#include "llvm/ADT/SmallVector.h"
		33	#include "llvm/ADT/iterator.h"
		34	#include "llvm/ADT/iterator_range.h"
		35	#include "llvm/Frontend/OpenMP/OMPAssume.h"
		36	#include "llvm/Frontend/OpenMP/OMPConstants.h"
		37	#include "llvm/Frontend/OpenMP/OMPContext.h"
		38	#include "llvm/Support/Casting.h"
		39	#include "llvm/Support/Compiler.h"
		40	#include "llvm/Support/TrailingObjects.h"
		41	#include <cassert>
		42	#include <cstddef>
		43	#include <iterator>
		44	#include <utility>
		45
		46	namespace clang {
		47
		48	class ASTContext;
		49
		50	//===----------------------------------------------------------------------===//
		51	// AST classes for clauses.
		52	//===----------------------------------------------------------------------===//
		53
		54	/// This is a basic class for representing single OpenMP clause.
		55	class OMPClause {
		56	/// Starting location of the clause (the clause keyword).
		57	SourceLocation StartLoc;
		58
		59	/// Ending location of the clause.
		60	SourceLocation EndLoc;
		61
		62	/// Kind of the clause.
		63	OpenMPClauseKind Kind;
		64
		65	protected:
		66	OMPClause(OpenMPClauseKind K, SourceLocation StartLoc, SourceLocation EndLoc)
		67	: StartLoc(StartLoc), EndLoc(EndLoc), Kind(K) {}
		68
		69	public:
		70	/// Returns the starting location of the clause.
		71	SourceLocation getBeginLoc() const { return StartLoc; }
		72
		73	/// Returns the ending location of the clause.
		74	SourceLocation getEndLoc() const { return EndLoc; }
		75
		76	/// Sets the starting location of the clause.
		77	void setLocStart(SourceLocation Loc) { StartLoc = Loc; }
		78
		79	/// Sets the ending location of the clause.
		80	void setLocEnd(SourceLocation Loc) { EndLoc = Loc; }
		81
		82	/// Returns kind of OpenMP clause (private, shared, reduction, etc.).
		83	OpenMPClauseKind getClauseKind() const { return Kind; }
		84
		85	bool isImplicit() const { return StartLoc.isInvalid(); }
		86
		87	using child_iterator = StmtIterator;
		88	using const_child_iterator = ConstStmtIterator;
		89	using child_range = llvm::iterator_range<child_iterator>;
		90	using const_child_range = llvm::iterator_range<const_child_iterator>;
		91
		92	child_range children();
		93	const_child_range children() const {
		94	auto Children = const_cast<OMPClause *>(this)->children();
		95	return const_child_range(Children.begin(), Children.end());
		96	}
		97
		98	/// Get the iterator range for the expressions used in the clauses. Used
		99	/// expressions include only the children that must be evaluated at the
		100	/// runtime before entering the construct.
		101	child_range used_children();
		102	const_child_range used_children() const {
		103	auto Children = const_cast<OMPClause *>(this)->children();
		104	return const_child_range(Children.begin(), Children.end());
		105	}
		106
		107	static bool classof(const OMPClause *) { return true; }
		108	};
		109
		110	template <OpenMPClauseKind ClauseKind>
		111	struct OMPNoChildClause : public OMPClause {
		112	/// Build '\p ClauseKind' clause.
		113	///
		114	/// \param StartLoc Starting location of the clause.
		115	/// \param EndLoc Ending location of the clause.
		116	OMPNoChildClause(SourceLocation StartLoc, SourceLocation EndLoc)
		117	: OMPClause(ClauseKind, StartLoc, EndLoc) {}
		118
		119	/// Build an empty clause.
		120	OMPNoChildClause()
		121	: OMPClause(ClauseKind, SourceLocation(), SourceLocation()) {}
		122
		123	child_range children() {
		124	return child_range(child_iterator(), child_iterator());
		125	}
		126
		127	const_child_range children() const {
		128	return const_child_range(const_child_iterator(), const_child_iterator());
		129	}
		130
		131	child_range used_children() {
		132	return child_range(child_iterator(), child_iterator());
		133	}
		134	const_child_range used_children() const {
		135	return const_child_range(const_child_iterator(), const_child_iterator());
		136	}
		137
		138	static bool classof(const OMPClause *T) {
		139	return T->getClauseKind() == ClauseKind;
		140	}
		141	};
		142
		143	template <OpenMPClauseKind ClauseKind, class Base>
		144	class OMPOneStmtClause : public Base {
		145
		146	/// Location of '('.
		147	SourceLocation LParenLoc;
		148
		149	/// Sub-expression.
		150	Stmt *S = nullptr;
		151
		152	protected:
		153	void setStmt(Stmt *S) { this->S = S; }
		154
		155	public:
		156	OMPOneStmtClause(Stmt *S, SourceLocation StartLoc, SourceLocation LParenLoc,
		157	SourceLocation EndLoc)
		158	: Base(ClauseKind, StartLoc, EndLoc), LParenLoc(LParenLoc), S(S) {}
		159
		160	OMPOneStmtClause() : Base(ClauseKind, SourceLocation(), SourceLocation()) {}
		161
		162	/// Return the associated statement, potentially casted to \p T.
		163	template <typename T> T *getStmtAs() const { return cast_or_null<T>(S); }
		164
		165	/// Sets the location of '('.
		166	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		167
		168	/// Returns the location of '('.
		169	SourceLocation getLParenLoc() const { return LParenLoc; }
		170
		171	using child_iterator = StmtIterator;
		172	using const_child_iterator = ConstStmtIterator;
		173	using child_range = llvm::iterator_range<child_iterator>;
		174	using const_child_range = llvm::iterator_range<const_child_iterator>;
		175
		176	child_range children() { return child_range(&S, &S + 1); }
		177
		178	const_child_range children() const { return const_child_range(&S, &S + 1); }
		179
		180	// TODO: Consider making the getAddrOfExprAsWritten version the default.
		181	child_range used_children() {
		182	return child_range(child_iterator(), child_iterator());
		183	}
		184	const_child_range used_children() const {
		185	return const_child_range(const_child_iterator(), const_child_iterator());
		186	}
		187
		188	static bool classof(const OMPClause *T) {
		189	return T->getClauseKind() == ClauseKind;
		190	}
		191	};
		192
		193	/// Class that handles pre-initialization statement for some clauses, like
		194	/// 'shedule', 'firstprivate' etc.
		195	class OMPClauseWithPreInit {
		196	friend class OMPClauseReader;
		197
		198	/// Pre-initialization statement for the clause.
		199	Stmt *PreInit = nullptr;
		200
		201	/// Region that captures the associated stmt.
		202	OpenMPDirectiveKind CaptureRegion = llvm::omp::OMPD_unknown;
		203
		204	protected:
		205	OMPClauseWithPreInit(const OMPClause *This) {
		206	assert(get(This) && "get is not tuned for pre-init.");
		207	}
		208
		209	/// Set pre-initialization statement for the clause.
		210	void
		211	setPreInitStmt(Stmt *S,
		212	OpenMPDirectiveKind ThisRegion = llvm::omp::OMPD_unknown) {
		213	PreInit = S;
		214	CaptureRegion = ThisRegion;
		215	}
		216
		217	public:
		218	/// Get pre-initialization statement for the clause.
		219	const Stmt *getPreInitStmt() const { return PreInit; }
		220
		221	/// Get pre-initialization statement for the clause.
		222	Stmt *getPreInitStmt() { return PreInit; }
		223
		224	/// Get capture region for the stmt in the clause.
		225	OpenMPDirectiveKind getCaptureRegion() const { return CaptureRegion; }
		226
		227	static OMPClauseWithPreInit get(OMPClause C);
		228	static const OMPClauseWithPreInit get(const OMPClause C);
		229	};
		230
		231	/// Class that handles post-update expression for some clauses, like
		232	/// 'lastprivate', 'reduction' etc.
		233	class OMPClauseWithPostUpdate : public OMPClauseWithPreInit {
		234	friend class OMPClauseReader;
		235
		236	/// Post-update expression for the clause.
		237	Expr *PostUpdate = nullptr;
		238
		239	protected:
		240	OMPClauseWithPostUpdate(const OMPClause *This) : OMPClauseWithPreInit(This) {
		241	assert(get(This) && "get is not tuned for post-update.");
		242	}
		243
		244	/// Set pre-initialization statement for the clause.
		245	void setPostUpdateExpr(Expr *S) { PostUpdate = S; }
		246
		247	public:
		248	/// Get post-update expression for the clause.
		249	const Expr *getPostUpdateExpr() const { return PostUpdate; }
		250
		251	/// Get post-update expression for the clause.
		252	Expr *getPostUpdateExpr() { return PostUpdate; }
		253
		254	static OMPClauseWithPostUpdate get(OMPClause C);
		255	static const OMPClauseWithPostUpdate get(const OMPClause C);
		256	};
		257
		258	/// This structure contains most locations needed for by an OMPVarListClause.
		259	struct OMPVarListLocTy {
		260	/// Starting location of the clause (the clause keyword).
		261	SourceLocation StartLoc;
		262	/// Location of '('.
		263	SourceLocation LParenLoc;
		264	/// Ending location of the clause.
		265	SourceLocation EndLoc;
		266	OMPVarListLocTy() = default;
		267	OMPVarListLocTy(SourceLocation StartLoc, SourceLocation LParenLoc,
		268	SourceLocation EndLoc)
		269	: StartLoc(StartLoc), LParenLoc(LParenLoc), EndLoc(EndLoc) {}
		270	};
		271
		272	/// This represents clauses with the list of variables like 'private',
		273	/// 'firstprivate', 'copyin', 'shared', or 'reduction' clauses in the
		274	/// '#pragma omp ...' directives.
		275	template <class T> class OMPVarListClause : public OMPClause {
		276	friend class OMPClauseReader;
		277
		278	/// Location of '('.
		279	SourceLocation LParenLoc;
		280
		281	/// Number of variables in the list.
		282	unsigned NumVars;
		283
		284	protected:
		285	/// Build a clause with \a N variables
		286	///
		287	/// \param K Kind of the clause.
		288	/// \param StartLoc Starting location of the clause (the clause keyword).
		289	/// \param LParenLoc Location of '('.
		290	/// \param EndLoc Ending location of the clause.
		291	/// \param N Number of the variables in the clause.
		292	OMPVarListClause(OpenMPClauseKind K, SourceLocation StartLoc,
		293	SourceLocation LParenLoc, SourceLocation EndLoc, unsigned N)
		294	: OMPClause(K, StartLoc, EndLoc), LParenLoc(LParenLoc), NumVars(N) {}
		295
		296	/// Fetches list of variables associated with this clause.
		297	MutableArrayRef<Expr *> getVarRefs() {
		298	return MutableArrayRef<Expr *>(
		299	static_cast<T >(this)->template getTrailingObjects<Expr >(), NumVars);
		300	}
		301
		302	/// Sets the list of variables for this clause.
		303	void setVarRefs(ArrayRef<Expr *> VL) {
		304	assert(VL.size() == NumVars &&
		305	"Number of variables is not the same as the preallocated buffer");
		306	std::copy(VL.begin(), VL.end(),
		307	static_cast<T >(this)->template getTrailingObjects<Expr >());
		308	}
		309
		310	public:
		311	using varlist_iterator = MutableArrayRef<Expr *>::iterator;
		312	using varlist_const_iterator = ArrayRef<const Expr *>::iterator;
		313	using varlist_range = llvm::iterator_range<varlist_iterator>;
		314	using varlist_const_range = llvm::iterator_range<varlist_const_iterator>;
		315
		316	unsigned varlist_size() const { return NumVars; }
		317	bool varlist_empty() const { return NumVars == 0; }
		318
		319	varlist_range varlists() {
		320	return varlist_range(varlist_begin(), varlist_end());
		321	}
		322	varlist_const_range varlists() const {
		323	return varlist_const_range(varlist_begin(), varlist_end());
		324	}
		325
		326	varlist_iterator varlist_begin() { return getVarRefs().begin(); }
		327	varlist_iterator varlist_end() { return getVarRefs().end(); }
		328	varlist_const_iterator varlist_begin() const { return getVarRefs().begin(); }
		329	varlist_const_iterator varlist_end() const { return getVarRefs().end(); }
		330
		331	/// Sets the location of '('.
		332	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		333
		334	/// Returns the location of '('.
		335	SourceLocation getLParenLoc() const { return LParenLoc; }
		336
		337	/// Fetches list of all variables in the clause.
		338	ArrayRef<const Expr *> getVarRefs() const {
		339	return llvm::ArrayRef(
		340	static_cast<const T >(this)->template getTrailingObjects<Expr >(),
		341	NumVars);
		342	}
		343	};
		344
		345	/// This represents 'allocator' clause in the '#pragma omp ...'
		346	/// directive.
		347	///
		348	/// \code
		349	/// #pragma omp allocate(a) allocator(omp_default_mem_alloc)
		350	/// \endcode
		351	/// In this example directive '#pragma omp allocate' has simple 'allocator'
		352	/// clause with the allocator 'omp_default_mem_alloc'.
		353	class OMPAllocatorClause final
		354	: public OMPOneStmtClause<llvm::omp::OMPC_allocator, OMPClause> {
		355	friend class OMPClauseReader;
		356
		357	/// Set allocator.
		358	void setAllocator(Expr *A) { setStmt(A); }
		359
		360	public:
		361	/// Build 'allocator' clause with the given allocator.
		362	///
		363	/// \param A Allocator.
		364	/// \param StartLoc Starting location of the clause.
		365	/// \param LParenLoc Location of '('.
		366	/// \param EndLoc Ending location of the clause.
		367	OMPAllocatorClause(Expr *A, SourceLocation StartLoc, SourceLocation LParenLoc,
		368	SourceLocation EndLoc)
		369	: OMPOneStmtClause(A, StartLoc, LParenLoc, EndLoc) {}
		370
		371	/// Build an empty clause.
		372	OMPAllocatorClause() : OMPOneStmtClause() {}
		373
		374	/// Returns allocator.
		375	Expr *getAllocator() const { return getStmtAs<Expr>(); }
		376	};
		377
		378	/// This represents the 'align' clause in the '#pragma omp allocate'
		379	/// directive.
		380	///
		381	/// \code
		382	/// #pragma omp allocate(a) allocator(omp_default_mem_alloc) align(8)
		383	/// \endcode
		384	/// In this example directive '#pragma omp allocate' has simple 'allocator'
		385	/// clause with the allocator 'omp_default_mem_alloc' and align clause with
		386	/// value of 8.
		387	class OMPAlignClause final
		388	: public OMPOneStmtClause<llvm::omp::OMPC_align, OMPClause> {
		389	friend class OMPClauseReader;
		390
		391	/// Set alignment value.
		392	void setAlignment(Expr *A) { setStmt(A); }
		393
		394	/// Build 'align' clause with the given alignment
		395	///
		396	/// \param A Alignment value.
		397	/// \param StartLoc Starting location of the clause.
		398	/// \param LParenLoc Location of '('.
		399	/// \param EndLoc Ending location of the clause.
		400	OMPAlignClause(Expr *A, SourceLocation StartLoc, SourceLocation LParenLoc,
		401	SourceLocation EndLoc)
		402	: OMPOneStmtClause(A, StartLoc, LParenLoc, EndLoc) {}
		403
		404	/// Build an empty clause.
		405	OMPAlignClause() : OMPOneStmtClause() {}
		406
		407	public:
		408	/// Build 'align' clause with the given alignment
		409	///
		410	/// \param A Alignment value.
		411	/// \param StartLoc Starting location of the clause.
		412	/// \param LParenLoc Location of '('.
		413	/// \param EndLoc Ending location of the clause.
		414	static OMPAlignClause Create(const ASTContext &C, Expr A,
		415	SourceLocation StartLoc,
		416	SourceLocation LParenLoc,
		417	SourceLocation EndLoc);
		418
		419	/// Returns alignment
		420	Expr *getAlignment() const { return getStmtAs<Expr>(); }
		421	};
		422
		423	/// This represents clause 'allocate' in the '#pragma omp ...' directives.
		424	///
		425	/// \code
		426	/// #pragma omp parallel private(a) allocate(omp_default_mem_alloc :a)
		427	/// \endcode
		428	/// In this example directive '#pragma omp parallel' has clause 'private'
		429	/// and clause 'allocate' for the variable 'a'.
		430	class OMPAllocateClause final
		431	: public OMPVarListClause<OMPAllocateClause>,
		432	private llvm::TrailingObjects<OMPAllocateClause, Expr *> {
		433	friend class OMPClauseReader;
		434	friend OMPVarListClause;
		435	friend TrailingObjects;
		436
		437	/// Allocator specified in the clause, or 'nullptr' if the default one is
		438	/// used.
		439	Expr *Allocator = nullptr;
		440	/// Position of the ':' delimiter in the clause;
		441	SourceLocation ColonLoc;
		442
		443	/// Build clause with number of variables \a N.
		444	///
		445	/// \param StartLoc Starting location of the clause.
		446	/// \param LParenLoc Location of '('.
		447	/// \param Allocator Allocator expression.
		448	/// \param ColonLoc Location of ':' delimiter.
		449	/// \param EndLoc Ending location of the clause.
		450	/// \param N Number of the variables in the clause.
		451	OMPAllocateClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		452	Expr *Allocator, SourceLocation ColonLoc,
		453	SourceLocation EndLoc, unsigned N)
		454	: OMPVarListClause<OMPAllocateClause>(llvm::omp::OMPC_allocate, StartLoc,
		455	LParenLoc, EndLoc, N),
		456	Allocator(Allocator), ColonLoc(ColonLoc) {}
		457
		458	/// Build an empty clause.
		459	///
		460	/// \param N Number of variables.
		461	explicit OMPAllocateClause(unsigned N)
		462	: OMPVarListClause<OMPAllocateClause>(llvm::omp::OMPC_allocate,
		463	SourceLocation(), SourceLocation(),
		464	SourceLocation(), N) {}
		465
		466	/// Sets location of ':' symbol in clause.
		467	void setColonLoc(SourceLocation CL) { ColonLoc = CL; }
		468
		469	void setAllocator(Expr *A) { Allocator = A; }
		470
		471	public:
		472	/// Creates clause with a list of variables \a VL.
		473	///
		474	/// \param C AST context.
		475	/// \param StartLoc Starting location of the clause.
		476	/// \param LParenLoc Location of '('.
		477	/// \param Allocator Allocator expression.
		478	/// \param ColonLoc Location of ':' delimiter.
		479	/// \param EndLoc Ending location of the clause.
		480	/// \param VL List of references to the variables.
		481	static OMPAllocateClause *Create(const ASTContext &C, SourceLocation StartLoc,
		482	SourceLocation LParenLoc, Expr *Allocator,
		483	SourceLocation ColonLoc,
		484	SourceLocation EndLoc, ArrayRef<Expr *> VL);
		485
		486	/// Returns the allocator expression or nullptr, if no allocator is specified.
		487	Expr *getAllocator() const { return Allocator; }
		488
		489	/// Returns the location of the ':' delimiter.
		490	SourceLocation getColonLoc() const { return ColonLoc; }
		491
		492	/// Creates an empty clause with the place for \a N variables.
		493	///
		494	/// \param C AST context.
		495	/// \param N The number of variables.
		496	static OMPAllocateClause *CreateEmpty(const ASTContext &C, unsigned N);
		497
		498	child_range children() {
		499	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		500	reinterpret_cast<Stmt **>(varlist_end()));
		501	}
		502
		503	const_child_range children() const {
		504	auto Children = const_cast<OMPAllocateClause *>(this)->children();
		505	return const_child_range(Children.begin(), Children.end());
		506	}
		507
		508	child_range used_children() {
		509	return child_range(child_iterator(), child_iterator());
		510	}
		511	const_child_range used_children() const {
		512	return const_child_range(const_child_iterator(), const_child_iterator());
		513	}
		514
		515	static bool classof(const OMPClause *T) {
		516	return T->getClauseKind() == llvm::omp::OMPC_allocate;
		517	}
		518	};
		519
		520	/// This represents 'if' clause in the '#pragma omp ...' directive.
		521	///
		522	/// \code
		523	/// #pragma omp parallel if(parallel:a > 5)
		524	/// \endcode
		525	/// In this example directive '#pragma omp parallel' has simple 'if' clause with
		526	/// condition 'a > 5' and directive name modifier 'parallel'.
		527	class OMPIfClause : public OMPClause, public OMPClauseWithPreInit {
		528	friend class OMPClauseReader;
		529
		530	/// Location of '('.
		531	SourceLocation LParenLoc;
		532
		533	/// Condition of the 'if' clause.
		534	Stmt *Condition = nullptr;
		535
		536	/// Location of ':' (if any).
		537	SourceLocation ColonLoc;
		538
		539	/// Directive name modifier for the clause.
		540	OpenMPDirectiveKind NameModifier = llvm::omp::OMPD_unknown;
		541
		542	/// Name modifier location.
		543	SourceLocation NameModifierLoc;
		544
		545	/// Set condition.
		546	void setCondition(Expr *Cond) { Condition = Cond; }
		547
		548	/// Set directive name modifier for the clause.
		549	void setNameModifier(OpenMPDirectiveKind NM) { NameModifier = NM; }
		550
		551	/// Set location of directive name modifier for the clause.
		552	void setNameModifierLoc(SourceLocation Loc) { NameModifierLoc = Loc; }
		553
		554	/// Set location of ':'.
		555	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		556
		557	public:
		558	/// Build 'if' clause with condition \a Cond.
		559	///
		560	/// \param NameModifier [OpenMP 4.1] Directive name modifier of clause.
		561	/// \param Cond Condition of the clause.
		562	/// \param HelperCond Helper condition for the clause.
		563	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		564	/// clause must be captured.
		565	/// \param StartLoc Starting location of the clause.
		566	/// \param LParenLoc Location of '('.
		567	/// \param NameModifierLoc Location of directive name modifier.
		568	/// \param ColonLoc [OpenMP 4.1] Location of ':'.
		569	/// \param EndLoc Ending location of the clause.
		570	OMPIfClause(OpenMPDirectiveKind NameModifier, Expr Cond, Stmt HelperCond,
		571	OpenMPDirectiveKind CaptureRegion, SourceLocation StartLoc,
		572	SourceLocation LParenLoc, SourceLocation NameModifierLoc,
		573	SourceLocation ColonLoc, SourceLocation EndLoc)
		574	: OMPClause(llvm::omp::OMPC_if, StartLoc, EndLoc),
		575	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Condition(Cond),
		576	ColonLoc(ColonLoc), NameModifier(NameModifier),
		577	NameModifierLoc(NameModifierLoc) {
		578	setPreInitStmt(HelperCond, CaptureRegion);
		579	}
		580
		581	/// Build an empty clause.
		582	OMPIfClause()
		583	: OMPClause(llvm::omp::OMPC_if, SourceLocation(), SourceLocation()),
		584	OMPClauseWithPreInit(this) {}
		585
		586	/// Sets the location of '('.
		587	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		588
		589	/// Returns the location of '('.
		590	SourceLocation getLParenLoc() const { return LParenLoc; }
		591
		592	/// Return the location of ':'.
		593	SourceLocation getColonLoc() const { return ColonLoc; }
		594
		595	/// Returns condition.
		596	Expr *getCondition() const { return cast_or_null<Expr>(Condition); }
		597
		598	/// Return directive name modifier associated with the clause.
		599	OpenMPDirectiveKind getNameModifier() const { return NameModifier; }
		600
		601	/// Return the location of directive name modifier.
		602	SourceLocation getNameModifierLoc() const { return NameModifierLoc; }
		603
		604	child_range children() { return child_range(&Condition, &Condition + 1); }
		605
		606	const_child_range children() const {
		607	return const_child_range(&Condition, &Condition + 1);
		608	}
		609
		610	child_range used_children();
		611	const_child_range used_children() const {
		612	auto Children = const_cast<OMPIfClause *>(this)->used_children();
		613	return const_child_range(Children.begin(), Children.end());
		614	}
		615
		616	static bool classof(const OMPClause *T) {
		617	return T->getClauseKind() == llvm::omp::OMPC_if;
		618	}
		619	};
		620
		621	/// This represents 'final' clause in the '#pragma omp ...' directive.
		622	///
		623	/// \code
		624	/// #pragma omp task final(a > 5)
		625	/// \endcode
		626	/// In this example directive '#pragma omp task' has simple 'final'
		627	/// clause with condition 'a > 5'.
		628	class OMPFinalClause final
		629	: public OMPOneStmtClause<llvm::omp::OMPC_final, OMPClause>,
		630	public OMPClauseWithPreInit {
		631	friend class OMPClauseReader;
		632
		633	/// Set condition.
		634	void setCondition(Expr *Cond) { setStmt(Cond); }
		635
		636	public:
		637	/// Build 'final' clause with condition \a Cond.
		638	///
		639	/// \param Cond Condition of the clause.
		640	/// \param HelperCond Helper condition for the construct.
		641	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		642	/// clause must be captured.
		643	/// \param StartLoc Starting location of the clause.
		644	/// \param LParenLoc Location of '('.
		645	/// \param EndLoc Ending location of the clause.
		646	OMPFinalClause(Expr Cond, Stmt HelperCond,
		647	OpenMPDirectiveKind CaptureRegion, SourceLocation StartLoc,
		648	SourceLocation LParenLoc, SourceLocation EndLoc)
		649	: OMPOneStmtClause(Cond, StartLoc, LParenLoc, EndLoc),
		650	OMPClauseWithPreInit(this) {
		651	setPreInitStmt(HelperCond, CaptureRegion);
		652	}
		653
		654	/// Build an empty clause.
		655	OMPFinalClause() : OMPOneStmtClause(), OMPClauseWithPreInit(this) {}
		656
		657	/// Returns condition.
		658	Expr *getCondition() const { return getStmtAs<Expr>(); }
		659
		660	child_range used_children();
		661	const_child_range used_children() const {
		662	auto Children = const_cast<OMPFinalClause *>(this)->used_children();
		663	return const_child_range(Children.begin(), Children.end());
		664	}
		665	};
		666	/// This represents 'num_threads' clause in the '#pragma omp ...'
		667	/// directive.
		668	///
		669	/// \code
		670	/// #pragma omp parallel num_threads(6)
		671	/// \endcode
		672	/// In this example directive '#pragma omp parallel' has simple 'num_threads'
		673	/// clause with number of threads '6'.
		674	class OMPNumThreadsClause final
		675	: public OMPOneStmtClause<llvm::omp::OMPC_num_threads, OMPClause>,
		676	public OMPClauseWithPreInit {
		677	friend class OMPClauseReader;
		678
		679	/// Set condition.
		680	void setNumThreads(Expr *NThreads) { setStmt(NThreads); }
		681
		682	public:
		683	/// Build 'num_threads' clause with condition \a NumThreads.
		684	///
		685	/// \param NumThreads Number of threads for the construct.
		686	/// \param HelperNumThreads Helper Number of threads for the construct.
		687	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		688	/// clause must be captured.
		689	/// \param StartLoc Starting location of the clause.
		690	/// \param LParenLoc Location of '('.
		691	/// \param EndLoc Ending location of the clause.
		692	OMPNumThreadsClause(Expr NumThreads, Stmt HelperNumThreads,
		693	OpenMPDirectiveKind CaptureRegion,
		694	SourceLocation StartLoc, SourceLocation LParenLoc,
		695	SourceLocation EndLoc)
		696	: OMPOneStmtClause(NumThreads, StartLoc, LParenLoc, EndLoc),
		697	OMPClauseWithPreInit(this) {
		698	setPreInitStmt(HelperNumThreads, CaptureRegion);
		699	}
		700
		701	/// Build an empty clause.
		702	OMPNumThreadsClause() : OMPOneStmtClause(), OMPClauseWithPreInit(this) {}
		703
		704	/// Returns number of threads.
		705	Expr *getNumThreads() const { return getStmtAs<Expr>(); }
		706	};
		707
		708	/// This represents 'safelen' clause in the '#pragma omp ...'
		709	/// directive.
		710	///
		711	/// \code
		712	/// #pragma omp simd safelen(4)
		713	/// \endcode
		714	/// In this example directive '#pragma omp simd' has clause 'safelen'
		715	/// with single expression '4'.
		716	/// If the safelen clause is used then no two iterations executed
		717	/// concurrently with SIMD instructions can have a greater distance
		718	/// in the logical iteration space than its value. The parameter of
		719	/// the safelen clause must be a constant positive integer expression.
		720	class OMPSafelenClause final
		721	: public OMPOneStmtClause<llvm::omp::OMPC_safelen, OMPClause> {
		722	friend class OMPClauseReader;
		723
		724	/// Set safelen.
		725	void setSafelen(Expr *Len) { setStmt(Len); }
		726
		727	public:
		728	/// Build 'safelen' clause.
		729	///
		730	/// \param Len Expression associated with this clause.
		731	/// \param StartLoc Starting location of the clause.
		732	/// \param EndLoc Ending location of the clause.
		733	OMPSafelenClause(Expr *Len, SourceLocation StartLoc, SourceLocation LParenLoc,
		734	SourceLocation EndLoc)
		735	: OMPOneStmtClause(Len, StartLoc, LParenLoc, EndLoc) {}
		736
		737	/// Build an empty clause.
		738	explicit OMPSafelenClause() : OMPOneStmtClause() {}
		739
		740	/// Return safe iteration space distance.
		741	Expr *getSafelen() const { return getStmtAs<Expr>(); }
		742	};
		743
		744	/// This represents 'simdlen' clause in the '#pragma omp ...'
		745	/// directive.
		746	///
		747	/// \code
		748	/// #pragma omp simd simdlen(4)
		749	/// \endcode
		750	/// In this example directive '#pragma omp simd' has clause 'simdlen'
		751	/// with single expression '4'.
		752	/// If the 'simdlen' clause is used then it specifies the preferred number of
		753	/// iterations to be executed concurrently. The parameter of the 'simdlen'
		754	/// clause must be a constant positive integer expression.
		755	class OMPSimdlenClause final
		756	: public OMPOneStmtClause<llvm::omp::OMPC_simdlen, OMPClause> {
		757	friend class OMPClauseReader;
		758
		759	/// Set simdlen.
		760	void setSimdlen(Expr *Len) { setStmt(Len); }
		761
		762	public:
		763	/// Build 'simdlen' clause.
		764	///
		765	/// \param Len Expression associated with this clause.
		766	/// \param StartLoc Starting location of the clause.
		767	/// \param EndLoc Ending location of the clause.
		768	OMPSimdlenClause(Expr *Len, SourceLocation StartLoc, SourceLocation LParenLoc,
		769	SourceLocation EndLoc)
		770	: OMPOneStmtClause(Len, StartLoc, LParenLoc, EndLoc) {}
		771
		772	/// Build an empty clause.
		773	explicit OMPSimdlenClause() : OMPOneStmtClause() {}
		774
		775	/// Return safe iteration space distance.
		776	Expr *getSimdlen() const { return getStmtAs<Expr>(); }
		777	};
		778
		779	/// This represents the 'sizes' clause in the '#pragma omp tile' directive.
		780	///
		781	/// \code
		782	/// #pragma omp tile sizes(5,5)
		783	/// for (int i = 0; i < 64; ++i)
		784	/// for (int j = 0; j < 64; ++j)
		785	/// \endcode
		786	class OMPSizesClause final
		787	: public OMPClause,
		788	private llvm::TrailingObjects<OMPSizesClause, Expr *> {
		789	friend class OMPClauseReader;
		790	friend class llvm::TrailingObjects<OMPSizesClause, Expr *>;
		791
		792	/// Location of '('.
		793	SourceLocation LParenLoc;
		794
		795	/// Number of tile sizes in the clause.
		796	unsigned NumSizes;
		797
		798	/// Build an empty clause.
		799	explicit OMPSizesClause(int NumSizes)
		800	: OMPClause(llvm::omp::OMPC_sizes, SourceLocation(), SourceLocation()),
		801	NumSizes(NumSizes) {}
		802
		803	public:
		804	/// Build a 'sizes' AST node.
		805	///
		806	/// \param C Context of the AST.
		807	/// \param StartLoc Location of the 'sizes' identifier.
		808	/// \param LParenLoc Location of '('.
		809	/// \param EndLoc Location of ')'.
		810	/// \param Sizes Content of the clause.
		811	static OMPSizesClause *Create(const ASTContext &C, SourceLocation StartLoc,
		812	SourceLocation LParenLoc, SourceLocation EndLoc,
		813	ArrayRef<Expr *> Sizes);
		814
		815	/// Build an empty 'sizes' AST node for deserialization.
		816	///
		817	/// \param C Context of the AST.
		818	/// \param NumSizes Number of items in the clause.
		819	static OMPSizesClause *CreateEmpty(const ASTContext &C, unsigned NumSizes);
		820
		821	/// Sets the location of '('.
		822	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		823
		824	/// Returns the location of '('.
		825	SourceLocation getLParenLoc() const { return LParenLoc; }
		826
		827	/// Returns the number of list items.
		828	unsigned getNumSizes() const { return NumSizes; }
		829
		830	/// Returns the tile size expressions.
		831	MutableArrayRef<Expr *> getSizesRefs() {
		832	return MutableArrayRef<Expr >(static_cast<OMPSizesClause >(this)
		833	->template getTrailingObjects<Expr *>(),
		834	NumSizes);
		835	}
		836	ArrayRef<Expr *> getSizesRefs() const {
		837	return ArrayRef<Expr >(static_cast<const OMPSizesClause >(this)
		838	->template getTrailingObjects<Expr *>(),
		839	NumSizes);
		840	}
		841
		842	/// Sets the tile size expressions.
		843	void setSizesRefs(ArrayRef<Expr *> VL) {
		844	assert(VL.size() == NumSizes);
		845	std::copy(VL.begin(), VL.end(),
		846	static_cast<OMPSizesClause *>(this)
		847	->template getTrailingObjects<Expr *>());
		848	}
		849
		850	child_range children() {
		851	MutableArrayRef<Expr *> Sizes = getSizesRefs();
		852	return child_range(reinterpret_cast<Stmt **>(Sizes.begin()),
		853	reinterpret_cast<Stmt **>(Sizes.end()));
		854	}
		855	const_child_range children() const {
		856	ArrayRef<Expr *> Sizes = getSizesRefs();
		857	return const_child_range(reinterpret_cast<Stmt const >(Sizes.begin()),
		858	reinterpret_cast<Stmt const >(Sizes.end()));
		859	}
		860
		861	child_range used_children() {
		862	return child_range(child_iterator(), child_iterator());
		863	}
		864	const_child_range used_children() const {
		865	return const_child_range(const_child_iterator(), const_child_iterator());
		866	}
		867
		868	static bool classof(const OMPClause *T) {
		869	return T->getClauseKind() == llvm::omp::OMPC_sizes;
		870	}
		871	};
		872
		873	/// Representation of the 'full' clause of the '#pragma omp unroll' directive.
		874	///
		875	/// \code
		876	/// #pragma omp unroll full
		877	/// for (int i = 0; i < 64; ++i)
		878	/// \endcode
		879	class OMPFullClause final : public OMPNoChildClause<llvm::omp::OMPC_full> {
		880	friend class OMPClauseReader;
		881
		882	/// Build an empty clause.
		883	explicit OMPFullClause() : OMPNoChildClause() {}
		884
		885	public:
		886	/// Build an AST node for a 'full' clause.
		887	///
		888	/// \param C Context of the AST.
		889	/// \param StartLoc Starting location of the clause.
		890	/// \param EndLoc Ending location of the clause.
		891	static OMPFullClause *Create(const ASTContext &C, SourceLocation StartLoc,
		892	SourceLocation EndLoc);
		893
		894	/// Build an empty 'full' AST node for deserialization.
		895	///
		896	/// \param C Context of the AST.
		897	static OMPFullClause *CreateEmpty(const ASTContext &C);
		898	};
		899
		900	/// Representation of the 'partial' clause of the '#pragma omp unroll'
		901	/// directive.
		902	///
		903	/// \code
		904	/// #pragma omp unroll partial(4)
		905	/// for (int i = start; i < end; ++i)
		906	/// \endcode
		907	class OMPPartialClause final : public OMPClause {
		908	friend class OMPClauseReader;
		909
		910	/// Location of '('.
		911	SourceLocation LParenLoc;
		912
		913	/// Optional argument to the clause (unroll factor).
		914	Stmt *Factor;
		915
		916	/// Build an empty clause.
		917	explicit OMPPartialClause() : OMPClause(llvm::omp::OMPC_partial, {}, {}) {}
		918
		919	/// Set the unroll factor.
		920	void setFactor(Expr *E) { Factor = E; }
		921
		922	/// Sets the location of '('.
		923	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		924
		925	public:
		926	/// Build an AST node for a 'partial' clause.
		927	///
		928	/// \param C Context of the AST.
		929	/// \param StartLoc Location of the 'partial' identifier.
		930	/// \param LParenLoc Location of '('.
		931	/// \param EndLoc Location of ')'.
		932	/// \param Factor Clause argument.
		933	static OMPPartialClause *Create(const ASTContext &C, SourceLocation StartLoc,
		934	SourceLocation LParenLoc,
		935	SourceLocation EndLoc, Expr *Factor);
		936
		937	/// Build an empty 'partial' AST node for deserialization.
		938	///
		939	/// \param C Context of the AST.
		940	static OMPPartialClause *CreateEmpty(const ASTContext &C);
		941
		942	/// Returns the location of '('.
		943	SourceLocation getLParenLoc() const { return LParenLoc; }
		944
		945	/// Returns the argument of the clause or nullptr if not set.
		946	Expr *getFactor() const { return cast_or_null<Expr>(Factor); }
		947
		948	child_range children() { return child_range(&Factor, &Factor + 1); }
		949	const_child_range children() const {
		950	return const_child_range(&Factor, &Factor + 1);
		951	}
		952
		953	child_range used_children() {
		954	return child_range(child_iterator(), child_iterator());
		955	}
		956	const_child_range used_children() const {
		957	return const_child_range(const_child_iterator(), const_child_iterator());
		958	}
		959
		960	static bool classof(const OMPClause *T) {
		961	return T->getClauseKind() == llvm::omp::OMPC_partial;
		962	}
		963	};
		964
		965	/// This represents 'collapse' clause in the '#pragma omp ...'
		966	/// directive.
		967	///
		968	/// \code
		969	/// #pragma omp simd collapse(3)
		970	/// \endcode
		971	/// In this example directive '#pragma omp simd' has clause 'collapse'
		972	/// with single expression '3'.
		973	/// The parameter must be a constant positive integer expression, it specifies
		974	/// the number of nested loops that should be collapsed into a single iteration
		975	/// space.
		976	class OMPCollapseClause final
		977	: public OMPOneStmtClause<llvm::omp::OMPC_collapse, OMPClause> {
		978	friend class OMPClauseReader;
		979
		980	/// Set the number of associated for-loops.
		981	void setNumForLoops(Expr *Num) { setStmt(Num); }
		982
		983	public:
		984	/// Build 'collapse' clause.
		985	///
		986	/// \param Num Expression associated with this clause.
		987	/// \param StartLoc Starting location of the clause.
		988	/// \param LParenLoc Location of '('.
		989	/// \param EndLoc Ending location of the clause.
		990	OMPCollapseClause(Expr *Num, SourceLocation StartLoc,
		991	SourceLocation LParenLoc, SourceLocation EndLoc)
		992	: OMPOneStmtClause(Num, StartLoc, LParenLoc, EndLoc) {}
		993
		994	/// Build an empty clause.
		995	explicit OMPCollapseClause() : OMPOneStmtClause() {}
		996
		997	/// Return the number of associated for-loops.
		998	Expr *getNumForLoops() const { return getStmtAs<Expr>(); }
		999	};
		1000
		1001	/// This represents 'default' clause in the '#pragma omp ...' directive.
		1002	///
		1003	/// \code
		1004	/// #pragma omp parallel default(shared)
		1005	/// \endcode
		1006	/// In this example directive '#pragma omp parallel' has simple 'default'
		1007	/// clause with kind 'shared'.
		1008	class OMPDefaultClause : public OMPClause {
		1009	friend class OMPClauseReader;
		1010
		1011	/// Location of '('.
		1012	SourceLocation LParenLoc;
		1013
		1014	/// A kind of the 'default' clause.
		1015	llvm::omp::DefaultKind Kind = llvm::omp::OMP_DEFAULT_unknown;
		1016
		1017	/// Start location of the kind in source code.
		1018	SourceLocation KindKwLoc;
		1019
		1020	/// Set kind of the clauses.
		1021	///
		1022	/// \param K Argument of clause.
		1023	void setDefaultKind(llvm::omp::DefaultKind K) { Kind = K; }
		1024
		1025	/// Set argument location.
		1026	///
		1027	/// \param KLoc Argument location.
		1028	void setDefaultKindKwLoc(SourceLocation KLoc) { KindKwLoc = KLoc; }
		1029
		1030	public:
		1031	/// Build 'default' clause with argument \a A ('none' or 'shared').
		1032	///
		1033	/// \param A Argument of the clause ('none' or 'shared').
		1034	/// \param ALoc Starting location of the argument.
		1035	/// \param StartLoc Starting location of the clause.
		1036	/// \param LParenLoc Location of '('.
		1037	/// \param EndLoc Ending location of the clause.
		1038	OMPDefaultClause(llvm::omp::DefaultKind A, SourceLocation ALoc,
		1039	SourceLocation StartLoc, SourceLocation LParenLoc,
		1040	SourceLocation EndLoc)
		1041	: OMPClause(llvm::omp::OMPC_default, StartLoc, EndLoc),
		1042	LParenLoc(LParenLoc), Kind(A), KindKwLoc(ALoc) {}
		1043
		1044	/// Build an empty clause.
		1045	OMPDefaultClause()
		1046	: OMPClause(llvm::omp::OMPC_default, SourceLocation(), SourceLocation()) {
		1047	}
		1048
		1049	/// Sets the location of '('.
		1050	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1051
		1052	/// Returns the location of '('.
		1053	SourceLocation getLParenLoc() const { return LParenLoc; }
		1054
		1055	/// Returns kind of the clause.
		1056	llvm::omp::DefaultKind getDefaultKind() const { return Kind; }
		1057
		1058	/// Returns location of clause kind.
		1059	SourceLocation getDefaultKindKwLoc() const { return KindKwLoc; }
		1060
		1061	child_range children() {
		1062	return child_range(child_iterator(), child_iterator());
		1063	}
		1064
		1065	const_child_range children() const {
		1066	return const_child_range(const_child_iterator(), const_child_iterator());
		1067	}
		1068
		1069	child_range used_children() {
		1070	return child_range(child_iterator(), child_iterator());
		1071	}
		1072	const_child_range used_children() const {
		1073	return const_child_range(const_child_iterator(), const_child_iterator());
		1074	}
		1075
		1076	static bool classof(const OMPClause *T) {
		1077	return T->getClauseKind() == llvm::omp::OMPC_default;
		1078	}
		1079	};
		1080
		1081	/// This represents 'proc_bind' clause in the '#pragma omp ...'
		1082	/// directive.
		1083	///
		1084	/// \code
		1085	/// #pragma omp parallel proc_bind(master)
		1086	/// \endcode
		1087	/// In this example directive '#pragma omp parallel' has simple 'proc_bind'
		1088	/// clause with kind 'master'.
		1089	class OMPProcBindClause : public OMPClause {
		1090	friend class OMPClauseReader;
		1091
		1092	/// Location of '('.
		1093	SourceLocation LParenLoc;
		1094
		1095	/// A kind of the 'proc_bind' clause.
		1096	llvm::omp::ProcBindKind Kind = llvm::omp::OMP_PROC_BIND_unknown;
		1097
		1098	/// Start location of the kind in source code.
		1099	SourceLocation KindKwLoc;
		1100
		1101	/// Set kind of the clause.
		1102	///
		1103	/// \param K Kind of clause.
		1104	void setProcBindKind(llvm::omp::ProcBindKind K) { Kind = K; }
		1105
		1106	/// Set clause kind location.
		1107	///
		1108	/// \param KLoc Kind location.
		1109	void setProcBindKindKwLoc(SourceLocation KLoc) { KindKwLoc = KLoc; }
		1110
		1111	public:
		1112	/// Build 'proc_bind' clause with argument \a A ('master', 'close' or
		1113	/// 'spread').
		1114	///
		1115	/// \param A Argument of the clause ('master', 'close' or 'spread').
		1116	/// \param ALoc Starting location of the argument.
		1117	/// \param StartLoc Starting location of the clause.
		1118	/// \param LParenLoc Location of '('.
		1119	/// \param EndLoc Ending location of the clause.
		1120	OMPProcBindClause(llvm::omp::ProcBindKind A, SourceLocation ALoc,
		1121	SourceLocation StartLoc, SourceLocation LParenLoc,
		1122	SourceLocation EndLoc)
		1123	: OMPClause(llvm::omp::OMPC_proc_bind, StartLoc, EndLoc),
		1124	LParenLoc(LParenLoc), Kind(A), KindKwLoc(ALoc) {}
		1125
		1126	/// Build an empty clause.
		1127	OMPProcBindClause()
		1128	: OMPClause(llvm::omp::OMPC_proc_bind, SourceLocation(),
		1129	SourceLocation()) {}
		1130
		1131	/// Sets the location of '('.
		1132	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1133
		1134	/// Returns the location of '('.
		1135	SourceLocation getLParenLoc() const { return LParenLoc; }
		1136
		1137	/// Returns kind of the clause.
		1138	llvm::omp::ProcBindKind getProcBindKind() const { return Kind; }
		1139
		1140	/// Returns location of clause kind.
		1141	SourceLocation getProcBindKindKwLoc() const { return KindKwLoc; }
		1142
		1143	child_range children() {
		1144	return child_range(child_iterator(), child_iterator());
		1145	}
		1146
		1147	const_child_range children() const {
		1148	return const_child_range(const_child_iterator(), const_child_iterator());
		1149	}
		1150
		1151	child_range used_children() {
		1152	return child_range(child_iterator(), child_iterator());
		1153	}
		1154	const_child_range used_children() const {
		1155	return const_child_range(const_child_iterator(), const_child_iterator());
		1156	}
		1157
		1158	static bool classof(const OMPClause *T) {
		1159	return T->getClauseKind() == llvm::omp::OMPC_proc_bind;
		1160	}
		1161	};
		1162
		1163	/// This represents 'unified_address' clause in the '#pragma omp requires'
		1164	/// directive.
		1165	///
		1166	/// \code
		1167	/// #pragma omp requires unified_address
		1168	/// \endcode
		1169	/// In this example directive '#pragma omp requires' has 'unified_address'
		1170	/// clause.
		1171	class OMPUnifiedAddressClause final
		1172	: public OMPNoChildClause<llvm::omp::OMPC_unified_address> {
		1173	public:
		1174	friend class OMPClauseReader;
		1175	/// Build 'unified_address' clause.
		1176	///
		1177	/// \param StartLoc Starting location of the clause.
		1178	/// \param EndLoc Ending location of the clause.
		1179	OMPUnifiedAddressClause(SourceLocation StartLoc, SourceLocation EndLoc)
		1180	: OMPNoChildClause(StartLoc, EndLoc) {}
		1181
		1182	/// Build an empty clause.
		1183	OMPUnifiedAddressClause() : OMPNoChildClause() {}
		1184	};
		1185
		1186	/// This represents 'unified_shared_memory' clause in the '#pragma omp requires'
		1187	/// directive.
		1188	///
		1189	/// \code
		1190	/// #pragma omp requires unified_shared_memory
		1191	/// \endcode
		1192	/// In this example directive '#pragma omp requires' has 'unified_shared_memory'
		1193	/// clause.
		1194	class OMPUnifiedSharedMemoryClause final : public OMPClause {
		1195	public:
		1196	friend class OMPClauseReader;
		1197	/// Build 'unified_shared_memory' clause.
		1198	///
		1199	/// \param StartLoc Starting location of the clause.
		1200	/// \param EndLoc Ending location of the clause.
		1201	OMPUnifiedSharedMemoryClause(SourceLocation StartLoc, SourceLocation EndLoc)
		1202	: OMPClause(llvm::omp::OMPC_unified_shared_memory, StartLoc, EndLoc) {}
		1203
		1204	/// Build an empty clause.
		1205	OMPUnifiedSharedMemoryClause()
		1206	: OMPClause(llvm::omp::OMPC_unified_shared_memory, SourceLocation(),
		1207	SourceLocation()) {}
		1208
		1209	child_range children() {
		1210	return child_range(child_iterator(), child_iterator());
		1211	}
		1212
		1213	const_child_range children() const {
		1214	return const_child_range(const_child_iterator(), const_child_iterator());
		1215	}
		1216
		1217	child_range used_children() {
		1218	return child_range(child_iterator(), child_iterator());
		1219	}
		1220	const_child_range used_children() const {
		1221	return const_child_range(const_child_iterator(), const_child_iterator());
		1222	}
		1223
		1224	static bool classof(const OMPClause *T) {
		1225	return T->getClauseKind() == llvm::omp::OMPC_unified_shared_memory;
		1226	}
		1227	};
		1228
		1229	/// This represents 'reverse_offload' clause in the '#pragma omp requires'
		1230	/// directive.
		1231	///
		1232	/// \code
		1233	/// #pragma omp requires reverse_offload
		1234	/// \endcode
		1235	/// In this example directive '#pragma omp requires' has 'reverse_offload'
		1236	/// clause.
		1237	class OMPReverseOffloadClause final : public OMPClause {
		1238	public:
		1239	friend class OMPClauseReader;
		1240	/// Build 'reverse_offload' clause.
		1241	///
		1242	/// \param StartLoc Starting location of the clause.
		1243	/// \param EndLoc Ending location of the clause.
		1244	OMPReverseOffloadClause(SourceLocation StartLoc, SourceLocation EndLoc)
		1245	: OMPClause(llvm::omp::OMPC_reverse_offload, StartLoc, EndLoc) {}
		1246
		1247	/// Build an empty clause.
		1248	OMPReverseOffloadClause()
		1249	: OMPClause(llvm::omp::OMPC_reverse_offload, SourceLocation(),
		1250	SourceLocation()) {}
		1251
		1252	child_range children() {
		1253	return child_range(child_iterator(), child_iterator());
		1254	}
		1255
		1256	const_child_range children() const {
		1257	return const_child_range(const_child_iterator(), const_child_iterator());
		1258	}
		1259
		1260	child_range used_children() {
		1261	return child_range(child_iterator(), child_iterator());
		1262	}
		1263	const_child_range used_children() const {
		1264	return const_child_range(const_child_iterator(), const_child_iterator());
		1265	}
		1266
		1267	static bool classof(const OMPClause *T) {
		1268	return T->getClauseKind() == llvm::omp::OMPC_reverse_offload;
		1269	}
		1270	};
		1271
		1272	/// This represents 'dynamic_allocators' clause in the '#pragma omp requires'
		1273	/// directive.
		1274	///
		1275	/// \code
		1276	/// #pragma omp requires dynamic_allocators
		1277	/// \endcode
		1278	/// In this example directive '#pragma omp requires' has 'dynamic_allocators'
		1279	/// clause.
		1280	class OMPDynamicAllocatorsClause final : public OMPClause {
		1281	public:
		1282	friend class OMPClauseReader;
		1283	/// Build 'dynamic_allocators' clause.
		1284	///
		1285	/// \param StartLoc Starting location of the clause.
		1286	/// \param EndLoc Ending location of the clause.
		1287	OMPDynamicAllocatorsClause(SourceLocation StartLoc, SourceLocation EndLoc)
		1288	: OMPClause(llvm::omp::OMPC_dynamic_allocators, StartLoc, EndLoc) {}
		1289
		1290	/// Build an empty clause.
		1291	OMPDynamicAllocatorsClause()
		1292	: OMPClause(llvm::omp::OMPC_dynamic_allocators, SourceLocation(),
		1293	SourceLocation()) {}
		1294
		1295	child_range children() {
		1296	return child_range(child_iterator(), child_iterator());
		1297	}
		1298
		1299	const_child_range children() const {
		1300	return const_child_range(const_child_iterator(), const_child_iterator());
		1301	}
		1302
		1303	child_range used_children() {
		1304	return child_range(child_iterator(), child_iterator());
		1305	}
		1306	const_child_range used_children() const {
		1307	return const_child_range(const_child_iterator(), const_child_iterator());
		1308	}
		1309
		1310	static bool classof(const OMPClause *T) {
		1311	return T->getClauseKind() == llvm::omp::OMPC_dynamic_allocators;
		1312	}
		1313	};
		1314
		1315	/// This represents 'atomic_default_mem_order' clause in the '#pragma omp
		1316	/// requires' directive.
		1317	///
		1318	/// \code
		1319	/// #pragma omp requires atomic_default_mem_order(seq_cst)
		1320	/// \endcode
		1321	/// In this example directive '#pragma omp requires' has simple
		1322	/// atomic_default_mem_order' clause with kind 'seq_cst'.
		1323	class OMPAtomicDefaultMemOrderClause final : public OMPClause {
		1324	friend class OMPClauseReader;
		1325
		1326	/// Location of '('
		1327	SourceLocation LParenLoc;
		1328
		1329	/// A kind of the 'atomic_default_mem_order' clause.
		1330	OpenMPAtomicDefaultMemOrderClauseKind Kind =
		1331	OMPC_ATOMIC_DEFAULT_MEM_ORDER_unknown;
		1332
		1333	/// Start location of the kind in source code.
		1334	SourceLocation KindKwLoc;
		1335
		1336	/// Set kind of the clause.
		1337	///
		1338	/// \param K Kind of clause.
		1339	void setAtomicDefaultMemOrderKind(OpenMPAtomicDefaultMemOrderClauseKind K) {
		1340	Kind = K;
		1341	}
		1342
		1343	/// Set clause kind location.
		1344	///
		1345	/// \param KLoc Kind location.
		1346	void setAtomicDefaultMemOrderKindKwLoc(SourceLocation KLoc) {
		1347	KindKwLoc = KLoc;
		1348	}
		1349
		1350	public:
		1351	/// Build 'atomic_default_mem_order' clause with argument \a A ('seq_cst',
		1352	/// 'acq_rel' or 'relaxed').
		1353	///
		1354	/// \param A Argument of the clause ('seq_cst', 'acq_rel' or 'relaxed').
		1355	/// \param ALoc Starting location of the argument.
		1356	/// \param StartLoc Starting location of the clause.
		1357	/// \param LParenLoc Location of '('.
		1358	/// \param EndLoc Ending location of the clause.
		1359	OMPAtomicDefaultMemOrderClause(OpenMPAtomicDefaultMemOrderClauseKind A,
		1360	SourceLocation ALoc, SourceLocation StartLoc,
		1361	SourceLocation LParenLoc,
		1362	SourceLocation EndLoc)
		1363	: OMPClause(llvm::omp::OMPC_atomic_default_mem_order, StartLoc, EndLoc),
		1364	LParenLoc(LParenLoc), Kind(A), KindKwLoc(ALoc) {}
		1365
		1366	/// Build an empty clause.
		1367	OMPAtomicDefaultMemOrderClause()
		1368	: OMPClause(llvm::omp::OMPC_atomic_default_mem_order, SourceLocation(),
		1369	SourceLocation()) {}
		1370
		1371	/// Sets the location of '('.
		1372	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1373
		1374	/// Returns the locaiton of '('.
		1375	SourceLocation getLParenLoc() const { return LParenLoc; }
		1376
		1377	/// Returns kind of the clause.
		1378	OpenMPAtomicDefaultMemOrderClauseKind getAtomicDefaultMemOrderKind() const {
		1379	return Kind;
		1380	}
		1381
		1382	/// Returns location of clause kind.
		1383	SourceLocation getAtomicDefaultMemOrderKindKwLoc() const { return KindKwLoc; }
		1384
		1385	child_range children() {
		1386	return child_range(child_iterator(), child_iterator());
		1387	}
		1388
		1389	const_child_range children() const {
		1390	return const_child_range(const_child_iterator(), const_child_iterator());
		1391	}
		1392
		1393	child_range used_children() {
		1394	return child_range(child_iterator(), child_iterator());
		1395	}
		1396	const_child_range used_children() const {
		1397	return const_child_range(const_child_iterator(), const_child_iterator());
		1398	}
		1399
		1400	static bool classof(const OMPClause *T) {
		1401	return T->getClauseKind() == llvm::omp::OMPC_atomic_default_mem_order;
		1402	}
		1403	};
		1404
		1405	/// This represents 'at' clause in the '#pragma omp error' directive
		1406	///
		1407	/// \code
		1408	/// #pragma omp error at(compilation)
		1409	/// \endcode
		1410	/// In this example directive '#pragma omp error' has simple
		1411	/// 'at' clause with kind 'complilation'.
		1412	class OMPAtClause final : public OMPClause {
		1413	friend class OMPClauseReader;
		1414
		1415	/// Location of '('
		1416	SourceLocation LParenLoc;
		1417
		1418	/// A kind of the 'at' clause.
		1419	OpenMPAtClauseKind Kind = OMPC_AT_unknown;
		1420
		1421	/// Start location of the kind in source code.
		1422	SourceLocation KindKwLoc;
		1423
		1424	/// Set kind of the clause.
		1425	///
		1426	/// \param K Kind of clause.
		1427	void setAtKind(OpenMPAtClauseKind K) { Kind = K; }
		1428
		1429	/// Set clause kind location.
		1430	///
		1431	/// \param KLoc Kind location.
		1432	void setAtKindKwLoc(SourceLocation KLoc) { KindKwLoc = KLoc; }
		1433
		1434	/// Sets the location of '('.
		1435	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1436
		1437	public:
		1438	/// Build 'at' clause with argument \a A ('compilation' or 'execution').
		1439	///
		1440	/// \param A Argument of the clause ('compilation' or 'execution').
		1441	/// \param ALoc Starting location of the argument.
		1442	/// \param StartLoc Starting location of the clause.
		1443	/// \param LParenLoc Location of '('.
		1444	/// \param EndLoc Ending location of the clause.
		1445	OMPAtClause(OpenMPAtClauseKind A, SourceLocation ALoc,
		1446	SourceLocation StartLoc, SourceLocation LParenLoc,
		1447	SourceLocation EndLoc)
		1448	: OMPClause(llvm::omp::OMPC_at, StartLoc, EndLoc), LParenLoc(LParenLoc),
		1449	Kind(A), KindKwLoc(ALoc) {}
		1450
		1451	/// Build an empty clause.
		1452	OMPAtClause()
		1453	: OMPClause(llvm::omp::OMPC_at, SourceLocation(), SourceLocation()) {}
		1454
		1455	/// Returns the locaiton of '('.
		1456	SourceLocation getLParenLoc() const { return LParenLoc; }
		1457
		1458	/// Returns kind of the clause.
		1459	OpenMPAtClauseKind getAtKind() const { return Kind; }
		1460
		1461	/// Returns location of clause kind.
		1462	SourceLocation getAtKindKwLoc() const { return KindKwLoc; }
		1463
		1464	child_range children() {
		1465	return child_range(child_iterator(), child_iterator());
		1466	}
		1467
		1468	const_child_range children() const {
		1469	return const_child_range(const_child_iterator(), const_child_iterator());
		1470	}
		1471
		1472	child_range used_children() {
		1473	return child_range(child_iterator(), child_iterator());
		1474	}
		1475	const_child_range used_children() const {
		1476	return const_child_range(const_child_iterator(), const_child_iterator());
		1477	}
		1478
		1479	static bool classof(const OMPClause *T) {
		1480	return T->getClauseKind() == llvm::omp::OMPC_at;
		1481	}
		1482	};
		1483
		1484	/// This represents 'severity' clause in the '#pragma omp error' directive
		1485	///
		1486	/// \code
		1487	/// #pragma omp error severity(fatal)
		1488	/// \endcode
		1489	/// In this example directive '#pragma omp error' has simple
		1490	/// 'severity' clause with kind 'fatal'.
		1491	class OMPSeverityClause final : public OMPClause {
		1492	friend class OMPClauseReader;
		1493
		1494	/// Location of '('
		1495	SourceLocation LParenLoc;
		1496
		1497	/// A kind of the 'severity' clause.
		1498	OpenMPSeverityClauseKind Kind = OMPC_SEVERITY_unknown;
		1499
		1500	/// Start location of the kind in source code.
		1501	SourceLocation KindKwLoc;
		1502
		1503	/// Set kind of the clause.
		1504	///
		1505	/// \param K Kind of clause.
		1506	void setSeverityKind(OpenMPSeverityClauseKind K) { Kind = K; }
		1507
		1508	/// Set clause kind location.
		1509	///
		1510	/// \param KLoc Kind location.
		1511	void setSeverityKindKwLoc(SourceLocation KLoc) { KindKwLoc = KLoc; }
		1512
		1513	/// Sets the location of '('.
		1514	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1515
		1516	public:
		1517	/// Build 'severity' clause with argument \a A ('fatal' or 'warning').
		1518	///
		1519	/// \param A Argument of the clause ('fatal' or 'warning').
		1520	/// \param ALoc Starting location of the argument.
		1521	/// \param StartLoc Starting location of the clause.
		1522	/// \param LParenLoc Location of '('.
		1523	/// \param EndLoc Ending location of the clause.
		1524	OMPSeverityClause(OpenMPSeverityClauseKind A, SourceLocation ALoc,
		1525	SourceLocation StartLoc, SourceLocation LParenLoc,
		1526	SourceLocation EndLoc)
		1527	: OMPClause(llvm::omp::OMPC_severity, StartLoc, EndLoc),
		1528	LParenLoc(LParenLoc), Kind(A), KindKwLoc(ALoc) {}
		1529
		1530	/// Build an empty clause.
		1531	OMPSeverityClause()
		1532	: OMPClause(llvm::omp::OMPC_severity, SourceLocation(),
		1533	SourceLocation()) {}
		1534
		1535	/// Returns the locaiton of '('.
		1536	SourceLocation getLParenLoc() const { return LParenLoc; }
		1537
		1538	/// Returns kind of the clause.
		1539	OpenMPSeverityClauseKind getSeverityKind() const { return Kind; }
		1540
		1541	/// Returns location of clause kind.
		1542	SourceLocation getSeverityKindKwLoc() const { return KindKwLoc; }
		1543
		1544	child_range children() {
		1545	return child_range(child_iterator(), child_iterator());
		1546	}
		1547
		1548	const_child_range children() const {
		1549	return const_child_range(const_child_iterator(), const_child_iterator());
		1550	}
		1551
		1552	child_range used_children() {
		1553	return child_range(child_iterator(), child_iterator());
		1554	}
		1555	const_child_range used_children() const {
		1556	return const_child_range(const_child_iterator(), const_child_iterator());
		1557	}
		1558
		1559	static bool classof(const OMPClause *T) {
		1560	return T->getClauseKind() == llvm::omp::OMPC_severity;
		1561	}
		1562	};
		1563
		1564	/// This represents 'message' clause in the '#pragma omp error' directive
		1565	///
		1566	/// \code
		1567	/// #pragma omp error message("GNU compiler required.")
		1568	/// \endcode
		1569	/// In this example directive '#pragma omp error' has simple
		1570	/// 'message' clause with user error message of "GNU compiler required.".
		1571	class OMPMessageClause final : public OMPClause {
		1572	friend class OMPClauseReader;
		1573
		1574	/// Location of '('
		1575	SourceLocation LParenLoc;
		1576
		1577	// Expression of the 'message' clause.
		1578	Stmt *MessageString = nullptr;
		1579
		1580	/// Set message string of the clause.
		1581	void setMessageString(Expr *MS) { MessageString = MS; }
		1582
		1583	/// Sets the location of '('.
		1584	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1585
		1586	public:
		1587	/// Build 'message' clause with message string argument
		1588	///
		1589	/// \param MS Argument of the clause (message string).
		1590	/// \param StartLoc Starting location of the clause.
		1591	/// \param LParenLoc Location of '('.
		1592	/// \param EndLoc Ending location of the clause.
		1593	OMPMessageClause(Expr *MS, SourceLocation StartLoc, SourceLocation LParenLoc,
		1594	SourceLocation EndLoc)
		1595	: OMPClause(llvm::omp::OMPC_message, StartLoc, EndLoc),
		1596	LParenLoc(LParenLoc), MessageString(MS) {}
		1597
		1598	/// Build an empty clause.
		1599	OMPMessageClause()
		1600	: OMPClause(llvm::omp::OMPC_message, SourceLocation(), SourceLocation()) {
		1601	}
		1602
		1603	/// Returns the locaiton of '('.
		1604	SourceLocation getLParenLoc() const { return LParenLoc; }
		1605
		1606	/// Returns message string of the clause.
		1607	Expr *getMessageString() const { return cast_or_null<Expr>(MessageString); }
		1608
		1609	child_range children() {
		1610	return child_range(&MessageString, &MessageString + 1);
		1611	}
		1612
		1613	const_child_range children() const {
		1614	return const_child_range(&MessageString, &MessageString + 1);
		1615	}
		1616
		1617	child_range used_children() {
		1618	return child_range(child_iterator(), child_iterator());
		1619	}
		1620
		1621	const_child_range used_children() const {
		1622	return const_child_range(const_child_iterator(), const_child_iterator());
		1623	}
		1624
		1625	static bool classof(const OMPClause *T) {
		1626	return T->getClauseKind() == llvm::omp::OMPC_message;
		1627	}
		1628	};
		1629
		1630	/// This represents 'schedule' clause in the '#pragma omp ...' directive.
		1631	///
		1632	/// \code
		1633	/// #pragma omp for schedule(static, 3)
		1634	/// \endcode
		1635	/// In this example directive '#pragma omp for' has 'schedule' clause with
		1636	/// arguments 'static' and '3'.
		1637	class OMPScheduleClause : public OMPClause, public OMPClauseWithPreInit {
		1638	friend class OMPClauseReader;
		1639
		1640	/// Location of '('.
		1641	SourceLocation LParenLoc;
		1642
		1643	/// A kind of the 'schedule' clause.
		1644	OpenMPScheduleClauseKind Kind = OMPC_SCHEDULE_unknown;
		1645
		1646	/// Modifiers for 'schedule' clause.
		1647	enum {FIRST, SECOND, NUM_MODIFIERS};
		1648	OpenMPScheduleClauseModifier Modifiers[NUM_MODIFIERS];
		1649
		1650	/// Locations of modifiers.
		1651	SourceLocation ModifiersLoc[NUM_MODIFIERS];
		1652
		1653	/// Start location of the schedule ind in source code.
		1654	SourceLocation KindLoc;
		1655
		1656	/// Location of ',' (if any).
		1657	SourceLocation CommaLoc;
		1658
		1659	/// Chunk size.
		1660	Expr *ChunkSize = nullptr;
		1661
		1662	/// Set schedule kind.
		1663	///
		1664	/// \param K Schedule kind.
		1665	void setScheduleKind(OpenMPScheduleClauseKind K) { Kind = K; }
		1666
		1667	/// Set the first schedule modifier.
		1668	///
		1669	/// \param M Schedule modifier.
		1670	void setFirstScheduleModifier(OpenMPScheduleClauseModifier M) {
		1671	Modifiers[FIRST] = M;
		1672	}
		1673
		1674	/// Set the second schedule modifier.
		1675	///
		1676	/// \param M Schedule modifier.
		1677	void setSecondScheduleModifier(OpenMPScheduleClauseModifier M) {
		1678	Modifiers[SECOND] = M;
		1679	}
		1680
		1681	/// Set location of the first schedule modifier.
		1682	void setFirstScheduleModifierLoc(SourceLocation Loc) {
		1683	ModifiersLoc[FIRST] = Loc;
		1684	}
		1685
		1686	/// Set location of the second schedule modifier.
		1687	void setSecondScheduleModifierLoc(SourceLocation Loc) {
		1688	ModifiersLoc[SECOND] = Loc;
		1689	}
		1690
		1691	/// Set schedule modifier location.
		1692	///
		1693	/// \param M Schedule modifier location.
		1694	void setScheduleModifer(OpenMPScheduleClauseModifier M) {
		1695	if (Modifiers[FIRST] == OMPC_SCHEDULE_MODIFIER_unknown)
		1696	Modifiers[FIRST] = M;
		1697	else {
		1698	assert(Modifiers[SECOND] == OMPC_SCHEDULE_MODIFIER_unknown);
		1699	Modifiers[SECOND] = M;
		1700	}
		1701	}
		1702
		1703	/// Sets the location of '('.
		1704	///
		1705	/// \param Loc Location of '('.
		1706	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1707
		1708	/// Set schedule kind start location.
		1709	///
		1710	/// \param KLoc Schedule kind location.
		1711	void setScheduleKindLoc(SourceLocation KLoc) { KindLoc = KLoc; }
		1712
		1713	/// Set location of ','.
		1714	///
		1715	/// \param Loc Location of ','.
		1716	void setCommaLoc(SourceLocation Loc) { CommaLoc = Loc; }
		1717
		1718	/// Set chunk size.
		1719	///
		1720	/// \param E Chunk size.
		1721	void setChunkSize(Expr *E) { ChunkSize = E; }
		1722
		1723	public:
		1724	/// Build 'schedule' clause with schedule kind \a Kind and chunk size
		1725	/// expression \a ChunkSize.
		1726	///
		1727	/// \param StartLoc Starting location of the clause.
		1728	/// \param LParenLoc Location of '('.
		1729	/// \param KLoc Starting location of the argument.
		1730	/// \param CommaLoc Location of ','.
		1731	/// \param EndLoc Ending location of the clause.
		1732	/// \param Kind Schedule kind.
		1733	/// \param ChunkSize Chunk size.
		1734	/// \param HelperChunkSize Helper chunk size for combined directives.
		1735	/// \param M1 The first modifier applied to 'schedule' clause.
		1736	/// \param M1Loc Location of the first modifier
		1737	/// \param M2 The second modifier applied to 'schedule' clause.
		1738	/// \param M2Loc Location of the second modifier
		1739	OMPScheduleClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		1740	SourceLocation KLoc, SourceLocation CommaLoc,
		1741	SourceLocation EndLoc, OpenMPScheduleClauseKind Kind,
		1742	Expr ChunkSize, Stmt HelperChunkSize,
		1743	OpenMPScheduleClauseModifier M1, SourceLocation M1Loc,
		1744	OpenMPScheduleClauseModifier M2, SourceLocation M2Loc)
		1745	: OMPClause(llvm::omp::OMPC_schedule, StartLoc, EndLoc),
		1746	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Kind(Kind),
		1747	KindLoc(KLoc), CommaLoc(CommaLoc), ChunkSize(ChunkSize) {
		1748	setPreInitStmt(HelperChunkSize);
		1749	Modifiers[FIRST] = M1;
		1750	Modifiers[SECOND] = M2;
		1751	ModifiersLoc[FIRST] = M1Loc;
		1752	ModifiersLoc[SECOND] = M2Loc;
		1753	}
		1754
		1755	/// Build an empty clause.
		1756	explicit OMPScheduleClause()
		1757	: OMPClause(llvm::omp::OMPC_schedule, SourceLocation(), SourceLocation()),
		1758	OMPClauseWithPreInit(this) {
		1759	Modifiers[FIRST] = OMPC_SCHEDULE_MODIFIER_unknown;
		1760	Modifiers[SECOND] = OMPC_SCHEDULE_MODIFIER_unknown;
		1761	}
		1762
		1763	/// Get kind of the clause.
		1764	OpenMPScheduleClauseKind getScheduleKind() const { return Kind; }
		1765
		1766	/// Get the first modifier of the clause.
		1767	OpenMPScheduleClauseModifier getFirstScheduleModifier() const {
		1768	return Modifiers[FIRST];
		1769	}
		1770
		1771	/// Get the second modifier of the clause.
		1772	OpenMPScheduleClauseModifier getSecondScheduleModifier() const {
		1773	return Modifiers[SECOND];
		1774	}
		1775
		1776	/// Get location of '('.
		1777	SourceLocation getLParenLoc() { return LParenLoc; }
		1778
		1779	/// Get kind location.
		1780	SourceLocation getScheduleKindLoc() { return KindLoc; }
		1781
		1782	/// Get the first modifier location.
		1783	SourceLocation getFirstScheduleModifierLoc() const {
		1784	return ModifiersLoc[FIRST];
		1785	}
		1786
		1787	/// Get the second modifier location.
		1788	SourceLocation getSecondScheduleModifierLoc() const {
		1789	return ModifiersLoc[SECOND];
		1790	}
		1791
		1792	/// Get location of ','.
		1793	SourceLocation getCommaLoc() { return CommaLoc; }
		1794
		1795	/// Get chunk size.
		1796	Expr *getChunkSize() { return ChunkSize; }
		1797
		1798	/// Get chunk size.
		1799	const Expr *getChunkSize() const { return ChunkSize; }
		1800
		1801	child_range children() {
		1802	return child_range(reinterpret_cast<Stmt **>(&ChunkSize),
		1803	reinterpret_cast<Stmt **>(&ChunkSize) + 1);
		1804	}
		1805
		1806	const_child_range children() const {
		1807	auto Children = const_cast<OMPScheduleClause *>(this)->children();
		1808	return const_child_range(Children.begin(), Children.end());
		1809	}
		1810
		1811	child_range used_children() {
		1812	return child_range(child_iterator(), child_iterator());
		1813	}
		1814	const_child_range used_children() const {
		1815	return const_child_range(const_child_iterator(), const_child_iterator());
		1816	}
		1817
		1818	static bool classof(const OMPClause *T) {
		1819	return T->getClauseKind() == llvm::omp::OMPC_schedule;
		1820	}
		1821	};
		1822
		1823	/// This represents 'ordered' clause in the '#pragma omp ...' directive.
		1824	///
		1825	/// \code
		1826	/// #pragma omp for ordered (2)
		1827	/// \endcode
		1828	/// In this example directive '#pragma omp for' has 'ordered' clause with
		1829	/// parameter 2.
		1830	class OMPOrderedClause final
		1831	: public OMPClause,
		1832	private llvm::TrailingObjects<OMPOrderedClause, Expr *> {
		1833	friend class OMPClauseReader;
		1834	friend TrailingObjects;
		1835
		1836	/// Location of '('.
		1837	SourceLocation LParenLoc;
		1838
		1839	/// Number of for-loops.
		1840	Stmt *NumForLoops = nullptr;
		1841
		1842	/// Real number of loops.
		1843	unsigned NumberOfLoops = 0;
		1844
		1845	/// Build 'ordered' clause.
		1846	///
		1847	/// \param Num Expression, possibly associated with this clause.
		1848	/// \param NumLoops Number of loops, associated with this clause.
		1849	/// \param StartLoc Starting location of the clause.
		1850	/// \param LParenLoc Location of '('.
		1851	/// \param EndLoc Ending location of the clause.
		1852	OMPOrderedClause(Expr *Num, unsigned NumLoops, SourceLocation StartLoc,
		1853	SourceLocation LParenLoc, SourceLocation EndLoc)
		1854	: OMPClause(llvm::omp::OMPC_ordered, StartLoc, EndLoc),
		1855	LParenLoc(LParenLoc), NumForLoops(Num), NumberOfLoops(NumLoops) {}
		1856
		1857	/// Build an empty clause.
		1858	explicit OMPOrderedClause(unsigned NumLoops)
		1859	: OMPClause(llvm::omp::OMPC_ordered, SourceLocation(), SourceLocation()),
		1860	NumberOfLoops(NumLoops) {}
		1861
		1862	/// Set the number of associated for-loops.
		1863	void setNumForLoops(Expr *Num) { NumForLoops = Num; }
		1864
		1865	public:
		1866	/// Build 'ordered' clause.
		1867	///
		1868	/// \param Num Expression, possibly associated with this clause.
		1869	/// \param NumLoops Number of loops, associated with this clause.
		1870	/// \param StartLoc Starting location of the clause.
		1871	/// \param LParenLoc Location of '('.
		1872	/// \param EndLoc Ending location of the clause.
		1873	static OMPOrderedClause Create(const ASTContext &C, Expr Num,
		1874	unsigned NumLoops, SourceLocation StartLoc,
		1875	SourceLocation LParenLoc,
		1876	SourceLocation EndLoc);
		1877
		1878	/// Build an empty clause.
		1879	static OMPOrderedClause* CreateEmpty(const ASTContext &C, unsigned NumLoops);
		1880
		1881	/// Sets the location of '('.
		1882	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		1883
		1884	/// Returns the location of '('.
		1885	SourceLocation getLParenLoc() const { return LParenLoc; }
		1886
		1887	/// Return the number of associated for-loops.
		1888	Expr *getNumForLoops() const { return cast_or_null<Expr>(NumForLoops); }
		1889
		1890	/// Set number of iterations for the specified loop.
		1891	void setLoopNumIterations(unsigned NumLoop, Expr *NumIterations);
		1892	/// Get number of iterations for all the loops.
		1893	ArrayRef<Expr *> getLoopNumIterations() const;
		1894
		1895	/// Set loop counter for the specified loop.
		1896	void setLoopCounter(unsigned NumLoop, Expr *Counter);
		1897	/// Get loops counter for the specified loop.
		1898	Expr *getLoopCounter(unsigned NumLoop);
		1899	const Expr *getLoopCounter(unsigned NumLoop) const;
		1900
		1901	child_range children() { return child_range(&NumForLoops, &NumForLoops + 1); }
		1902
		1903	const_child_range children() const {
		1904	return const_child_range(&NumForLoops, &NumForLoops + 1);
		1905	}
		1906
		1907	child_range used_children() {
		1908	return child_range(child_iterator(), child_iterator());
		1909	}
		1910	const_child_range used_children() const {
		1911	return const_child_range(const_child_iterator(), const_child_iterator());
		1912	}
		1913
		1914	static bool classof(const OMPClause *T) {
		1915	return T->getClauseKind() == llvm::omp::OMPC_ordered;
		1916	}
		1917	};
		1918
		1919	/// This represents 'nowait' clause in the '#pragma omp ...' directive.
		1920	///
		1921	/// \code
		1922	/// #pragma omp for nowait
		1923	/// \endcode
		1924	/// In this example directive '#pragma omp for' has 'nowait' clause.
		1925	class OMPNowaitClause final : public OMPNoChildClause<llvm::omp::OMPC_nowait> {
		1926	public:
		1927	/// Build 'nowait' clause.
		1928	///
		1929	/// \param StartLoc Starting location of the clause.
		1930	/// \param EndLoc Ending location of the clause.
		1931	OMPNowaitClause(SourceLocation StartLoc = SourceLocation(),
		1932	SourceLocation EndLoc = SourceLocation())
		1933	: OMPNoChildClause(StartLoc, EndLoc) {}
		1934	};
		1935
		1936	/// This represents 'untied' clause in the '#pragma omp ...' directive.
		1937	///
		1938	/// \code
		1939	/// #pragma omp task untied
		1940	/// \endcode
		1941	/// In this example directive '#pragma omp task' has 'untied' clause.
		1942	class OMPUntiedClause : public OMPClause {
		1943	public:
		1944	/// Build 'untied' clause.
		1945	///
		1946	/// \param StartLoc Starting location of the clause.
		1947	/// \param EndLoc Ending location of the clause.
		1948	OMPUntiedClause(SourceLocation StartLoc, SourceLocation EndLoc)
		1949	: OMPClause(llvm::omp::OMPC_untied, StartLoc, EndLoc) {}
		1950
		1951	/// Build an empty clause.
		1952	OMPUntiedClause()
		1953	: OMPClause(llvm::omp::OMPC_untied, SourceLocation(), SourceLocation()) {}
		1954
		1955	child_range children() {
		1956	return child_range(child_iterator(), child_iterator());
		1957	}
		1958
		1959	const_child_range children() const {
		1960	return const_child_range(const_child_iterator(), const_child_iterator());
		1961	}
		1962
		1963	child_range used_children() {
		1964	return child_range(child_iterator(), child_iterator());
		1965	}
		1966	const_child_range used_children() const {
		1967	return const_child_range(const_child_iterator(), const_child_iterator());
		1968	}
		1969
		1970	static bool classof(const OMPClause *T) {
		1971	return T->getClauseKind() == llvm::omp::OMPC_untied;
		1972	}
		1973	};
		1974
		1975	/// This represents 'mergeable' clause in the '#pragma omp ...'
		1976	/// directive.
		1977	///
		1978	/// \code
		1979	/// #pragma omp task mergeable
		1980	/// \endcode
		1981	/// In this example directive '#pragma omp task' has 'mergeable' clause.
		1982	class OMPMergeableClause : public OMPClause {
		1983	public:
		1984	/// Build 'mergeable' clause.
		1985	///
		1986	/// \param StartLoc Starting location of the clause.
		1987	/// \param EndLoc Ending location of the clause.
		1988	OMPMergeableClause(SourceLocation StartLoc, SourceLocation EndLoc)
		1989	: OMPClause(llvm::omp::OMPC_mergeable, StartLoc, EndLoc) {}
		1990
		1991	/// Build an empty clause.
		1992	OMPMergeableClause()
		1993	: OMPClause(llvm::omp::OMPC_mergeable, SourceLocation(),
		1994	SourceLocation()) {}
		1995
		1996	child_range children() {
		1997	return child_range(child_iterator(), child_iterator());
		1998	}
		1999
		2000	const_child_range children() const {
		2001	return const_child_range(const_child_iterator(), const_child_iterator());
		2002	}
		2003
		2004	child_range used_children() {
		2005	return child_range(child_iterator(), child_iterator());
		2006	}
		2007	const_child_range used_children() const {
		2008	return const_child_range(const_child_iterator(), const_child_iterator());
		2009	}
		2010
		2011	static bool classof(const OMPClause *T) {
		2012	return T->getClauseKind() == llvm::omp::OMPC_mergeable;
		2013	}
		2014	};
		2015
		2016	/// This represents 'read' clause in the '#pragma omp atomic' directive.
		2017	///
		2018	/// \code
		2019	/// #pragma omp atomic read
		2020	/// \endcode
		2021	/// In this example directive '#pragma omp atomic' has 'read' clause.
		2022	class OMPReadClause : public OMPClause {
		2023	public:
		2024	/// Build 'read' clause.
		2025	///
		2026	/// \param StartLoc Starting location of the clause.
		2027	/// \param EndLoc Ending location of the clause.
		2028	OMPReadClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2029	: OMPClause(llvm::omp::OMPC_read, StartLoc, EndLoc) {}
		2030
		2031	/// Build an empty clause.
		2032	OMPReadClause()
		2033	: OMPClause(llvm::omp::OMPC_read, SourceLocation(), SourceLocation()) {}
		2034
		2035	child_range children() {
		2036	return child_range(child_iterator(), child_iterator());
		2037	}
		2038
		2039	const_child_range children() const {
		2040	return const_child_range(const_child_iterator(), const_child_iterator());
		2041	}
		2042
		2043	child_range used_children() {
		2044	return child_range(child_iterator(), child_iterator());
		2045	}
		2046	const_child_range used_children() const {
		2047	return const_child_range(const_child_iterator(), const_child_iterator());
		2048	}
		2049
		2050	static bool classof(const OMPClause *T) {
		2051	return T->getClauseKind() == llvm::omp::OMPC_read;
		2052	}
		2053	};
		2054
		2055	/// This represents 'write' clause in the '#pragma omp atomic' directive.
		2056	///
		2057	/// \code
		2058	/// #pragma omp atomic write
		2059	/// \endcode
		2060	/// In this example directive '#pragma omp atomic' has 'write' clause.
		2061	class OMPWriteClause : public OMPClause {
		2062	public:
		2063	/// Build 'write' clause.
		2064	///
		2065	/// \param StartLoc Starting location of the clause.
		2066	/// \param EndLoc Ending location of the clause.
		2067	OMPWriteClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2068	: OMPClause(llvm::omp::OMPC_write, StartLoc, EndLoc) {}
		2069
		2070	/// Build an empty clause.
		2071	OMPWriteClause()
		2072	: OMPClause(llvm::omp::OMPC_write, SourceLocation(), SourceLocation()) {}
		2073
		2074	child_range children() {
		2075	return child_range(child_iterator(), child_iterator());
		2076	}
		2077
		2078	const_child_range children() const {
		2079	return const_child_range(const_child_iterator(), const_child_iterator());
		2080	}
		2081
		2082	child_range used_children() {
		2083	return child_range(child_iterator(), child_iterator());
		2084	}
		2085	const_child_range used_children() const {
		2086	return const_child_range(const_child_iterator(), const_child_iterator());
		2087	}
		2088
		2089	static bool classof(const OMPClause *T) {
		2090	return T->getClauseKind() == llvm::omp::OMPC_write;
		2091	}
		2092	};
		2093
		2094	/// This represents 'update' clause in the '#pragma omp atomic'
		2095	/// directive.
		2096	///
		2097	/// \code
		2098	/// #pragma omp atomic update
		2099	/// \endcode
		2100	/// In this example directive '#pragma omp atomic' has 'update' clause.
		2101	/// Also, this class represents 'update' clause in '#pragma omp depobj'
		2102	/// directive.
		2103	///
		2104	/// \code
		2105	/// #pragma omp depobj(a) update(in)
		2106	/// \endcode
		2107	/// In this example directive '#pragma omp depobj' has 'update' clause with 'in'
		2108	/// dependence kind.
		2109	class OMPUpdateClause final
		2110	: public OMPClause,
		2111	private llvm::TrailingObjects<OMPUpdateClause, SourceLocation,
		2112	OpenMPDependClauseKind> {
		2113	friend class OMPClauseReader;
		2114	friend TrailingObjects;
		2115
		2116	/// true if extended version of the clause for 'depobj' directive.
		2117	bool IsExtended = false;
		2118
		2119	/// Define the sizes of each trailing object array except the last one. This
		2120	/// is required for TrailingObjects to work properly.
		2121	size_t numTrailingObjects(OverloadToken<SourceLocation>) const {
		2122	// 2 locations: for '(' and argument location.
		2123	return IsExtended ? 2 : 0;
		2124	}
		2125
		2126	/// Sets the location of '(' in clause for 'depobj' directive.
		2127	void setLParenLoc(SourceLocation Loc) {
		2128	assert(IsExtended && "Expected extended clause.");
		2129	*getTrailingObjects<SourceLocation>() = Loc;
		2130	}
		2131
		2132	/// Sets the location of '(' in clause for 'depobj' directive.
		2133	void setArgumentLoc(SourceLocation Loc) {
		2134	assert(IsExtended && "Expected extended clause.");
		2135	*std::next(getTrailingObjects<SourceLocation>(), 1) = Loc;
		2136	}
		2137
		2138	/// Sets the dependence kind for the clause for 'depobj' directive.
		2139	void setDependencyKind(OpenMPDependClauseKind DK) {
		2140	assert(IsExtended && "Expected extended clause.");
		2141	*getTrailingObjects<OpenMPDependClauseKind>() = DK;
		2142	}
		2143
		2144	/// Build 'update' clause.
		2145	///
		2146	/// \param StartLoc Starting location of the clause.
		2147	/// \param EndLoc Ending location of the clause.
		2148	OMPUpdateClause(SourceLocation StartLoc, SourceLocation EndLoc,
		2149	bool IsExtended)
		2150	: OMPClause(llvm::omp::OMPC_update, StartLoc, EndLoc),
		2151	IsExtended(IsExtended) {}
		2152
		2153	/// Build an empty clause.
		2154	OMPUpdateClause(bool IsExtended)
		2155	: OMPClause(llvm::omp::OMPC_update, SourceLocation(), SourceLocation()),
		2156	IsExtended(IsExtended) {}
		2157
		2158	public:
		2159	/// Creates clause for 'atomic' directive.
		2160	///
		2161	/// \param C AST context.
		2162	/// \param StartLoc Starting location of the clause.
		2163	/// \param EndLoc Ending location of the clause.
		2164	static OMPUpdateClause *Create(const ASTContext &C, SourceLocation StartLoc,
		2165	SourceLocation EndLoc);
		2166
		2167	/// Creates clause for 'depobj' directive.
		2168	///
		2169	/// \param C AST context.
		2170	/// \param StartLoc Starting location of the clause.
		2171	/// \param LParenLoc Location of '('.
		2172	/// \param ArgumentLoc Location of the argument.
		2173	/// \param DK Dependence kind.
		2174	/// \param EndLoc Ending location of the clause.
		2175	static OMPUpdateClause *Create(const ASTContext &C, SourceLocation StartLoc,
		2176	SourceLocation LParenLoc,
		2177	SourceLocation ArgumentLoc,
		2178	OpenMPDependClauseKind DK,
		2179	SourceLocation EndLoc);
		2180
		2181	/// Creates an empty clause with the place for \a N variables.
		2182	///
		2183	/// \param C AST context.
		2184	/// \param IsExtended true if extended clause for 'depobj' directive must be
		2185	/// created.
		2186	static OMPUpdateClause *CreateEmpty(const ASTContext &C, bool IsExtended);
		2187
		2188	/// Checks if the clause is the extended clauses for 'depobj' directive.
		2189	bool isExtended() const { return IsExtended; }
		2190
		2191	child_range children() {
		2192	return child_range(child_iterator(), child_iterator());
		2193	}
		2194
		2195	const_child_range children() const {
		2196	return const_child_range(const_child_iterator(), const_child_iterator());
		2197	}
		2198
		2199	child_range used_children() {
		2200	return child_range(child_iterator(), child_iterator());
		2201	}
		2202	const_child_range used_children() const {
		2203	return const_child_range(const_child_iterator(), const_child_iterator());
		2204	}
		2205
		2206	/// Gets the location of '(' in clause for 'depobj' directive.
		2207	SourceLocation getLParenLoc() const {
		2208	assert(IsExtended && "Expected extended clause.");
		2209	return *getTrailingObjects<SourceLocation>();
		2210	}
		2211
		2212	/// Gets the location of argument in clause for 'depobj' directive.
		2213	SourceLocation getArgumentLoc() const {
		2214	assert(IsExtended && "Expected extended clause.");
		2215	return *std::next(getTrailingObjects<SourceLocation>(), 1);
		2216	}
		2217
		2218	/// Gets the dependence kind in clause for 'depobj' directive.
		2219	OpenMPDependClauseKind getDependencyKind() const {
		2220	assert(IsExtended && "Expected extended clause.");
		2221	return *getTrailingObjects<OpenMPDependClauseKind>();
		2222	}
		2223
		2224	static bool classof(const OMPClause *T) {
		2225	return T->getClauseKind() == llvm::omp::OMPC_update;
		2226	}
		2227	};
		2228
		2229	/// This represents 'capture' clause in the '#pragma omp atomic'
		2230	/// directive.
		2231	///
		2232	/// \code
		2233	/// #pragma omp atomic capture
		2234	/// \endcode
		2235	/// In this example directive '#pragma omp atomic' has 'capture' clause.
		2236	class OMPCaptureClause : public OMPClause {
		2237	public:
		2238	/// Build 'capture' clause.
		2239	///
		2240	/// \param StartLoc Starting location of the clause.
		2241	/// \param EndLoc Ending location of the clause.
		2242	OMPCaptureClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2243	: OMPClause(llvm::omp::OMPC_capture, StartLoc, EndLoc) {}
		2244
		2245	/// Build an empty clause.
		2246	OMPCaptureClause()
		2247	: OMPClause(llvm::omp::OMPC_capture, SourceLocation(), SourceLocation()) {
		2248	}
		2249
		2250	child_range children() {
		2251	return child_range(child_iterator(), child_iterator());
		2252	}
		2253
		2254	const_child_range children() const {
		2255	return const_child_range(const_child_iterator(), const_child_iterator());
		2256	}
		2257
		2258	child_range used_children() {
		2259	return child_range(child_iterator(), child_iterator());
		2260	}
		2261	const_child_range used_children() const {
		2262	return const_child_range(const_child_iterator(), const_child_iterator());
		2263	}
		2264
		2265	static bool classof(const OMPClause *T) {
		2266	return T->getClauseKind() == llvm::omp::OMPC_capture;
		2267	}
		2268	};
		2269
		2270	/// This represents 'compare' clause in the '#pragma omp atomic'
		2271	/// directive.
		2272	///
		2273	/// \code
		2274	/// #pragma omp atomic compare
		2275	/// \endcode
		2276	/// In this example directive '#pragma omp atomic' has 'compare' clause.
		2277	class OMPCompareClause final : public OMPClause {
		2278	public:
		2279	/// Build 'compare' clause.
		2280	///
		2281	/// \param StartLoc Starting location of the clause.
		2282	/// \param EndLoc Ending location of the clause.
		2283	OMPCompareClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2284	: OMPClause(llvm::omp::OMPC_compare, StartLoc, EndLoc) {}
		2285
		2286	/// Build an empty clause.
		2287	OMPCompareClause()
		2288	: OMPClause(llvm::omp::OMPC_compare, SourceLocation(), SourceLocation()) {
		2289	}
		2290
		2291	child_range children() {
		2292	return child_range(child_iterator(), child_iterator());
		2293	}
		2294
		2295	const_child_range children() const {
		2296	return const_child_range(const_child_iterator(), const_child_iterator());
		2297	}
		2298
		2299	child_range used_children() {
		2300	return child_range(child_iterator(), child_iterator());
		2301	}
		2302	const_child_range used_children() const {
		2303	return const_child_range(const_child_iterator(), const_child_iterator());
		2304	}
		2305
		2306	static bool classof(const OMPClause *T) {
		2307	return T->getClauseKind() == llvm::omp::OMPC_compare;
		2308	}
		2309	};
		2310
		2311	/// This represents 'seq_cst' clause in the '#pragma omp atomic'
		2312	/// directive.
		2313	///
		2314	/// \code
		2315	/// #pragma omp atomic seq_cst
		2316	/// \endcode
		2317	/// In this example directive '#pragma omp atomic' has 'seq_cst' clause.
		2318	class OMPSeqCstClause : public OMPClause {
		2319	public:
		2320	/// Build 'seq_cst' clause.
		2321	///
		2322	/// \param StartLoc Starting location of the clause.
		2323	/// \param EndLoc Ending location of the clause.
		2324	OMPSeqCstClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2325	: OMPClause(llvm::omp::OMPC_seq_cst, StartLoc, EndLoc) {}
		2326
		2327	/// Build an empty clause.
		2328	OMPSeqCstClause()
		2329	: OMPClause(llvm::omp::OMPC_seq_cst, SourceLocation(), SourceLocation()) {
		2330	}
		2331
		2332	child_range children() {
		2333	return child_range(child_iterator(), child_iterator());
		2334	}
		2335
		2336	const_child_range children() const {
		2337	return const_child_range(const_child_iterator(), const_child_iterator());
		2338	}
		2339
		2340	child_range used_children() {
		2341	return child_range(child_iterator(), child_iterator());
		2342	}
		2343	const_child_range used_children() const {
		2344	return const_child_range(const_child_iterator(), const_child_iterator());
		2345	}
		2346
		2347	static bool classof(const OMPClause *T) {
		2348	return T->getClauseKind() == llvm::omp::OMPC_seq_cst;
		2349	}
		2350	};
		2351
		2352	/// This represents 'acq_rel' clause in the '#pragma omp atomic\|flush'
		2353	/// directives.
		2354	///
		2355	/// \code
		2356	/// #pragma omp flush acq_rel
		2357	/// \endcode
		2358	/// In this example directive '#pragma omp flush' has 'acq_rel' clause.
		2359	class OMPAcqRelClause final : public OMPClause {
		2360	public:
		2361	/// Build 'ack_rel' clause.
		2362	///
		2363	/// \param StartLoc Starting location of the clause.
		2364	/// \param EndLoc Ending location of the clause.
		2365	OMPAcqRelClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2366	: OMPClause(llvm::omp::OMPC_acq_rel, StartLoc, EndLoc) {}
		2367
		2368	/// Build an empty clause.
		2369	OMPAcqRelClause()
		2370	: OMPClause(llvm::omp::OMPC_acq_rel, SourceLocation(), SourceLocation()) {
		2371	}
		2372
		2373	child_range children() {
		2374	return child_range(child_iterator(), child_iterator());
		2375	}
		2376
		2377	const_child_range children() const {
		2378	return const_child_range(const_child_iterator(), const_child_iterator());
		2379	}
		2380
		2381	child_range used_children() {
		2382	return child_range(child_iterator(), child_iterator());
		2383	}
		2384	const_child_range used_children() const {
		2385	return const_child_range(const_child_iterator(), const_child_iterator());
		2386	}
		2387
		2388	static bool classof(const OMPClause *T) {
		2389	return T->getClauseKind() == llvm::omp::OMPC_acq_rel;
		2390	}
		2391	};
		2392
		2393	/// This represents 'acquire' clause in the '#pragma omp atomic\|flush'
		2394	/// directives.
		2395	///
		2396	/// \code
		2397	/// #pragma omp flush acquire
		2398	/// \endcode
		2399	/// In this example directive '#pragma omp flush' has 'acquire' clause.
		2400	class OMPAcquireClause final : public OMPClause {
		2401	public:
		2402	/// Build 'acquire' clause.
		2403	///
		2404	/// \param StartLoc Starting location of the clause.
		2405	/// \param EndLoc Ending location of the clause.
		2406	OMPAcquireClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2407	: OMPClause(llvm::omp::OMPC_acquire, StartLoc, EndLoc) {}
		2408
		2409	/// Build an empty clause.
		2410	OMPAcquireClause()
		2411	: OMPClause(llvm::omp::OMPC_acquire, SourceLocation(), SourceLocation()) {
		2412	}
		2413
		2414	child_range children() {
		2415	return child_range(child_iterator(), child_iterator());
		2416	}
		2417
		2418	const_child_range children() const {
		2419	return const_child_range(const_child_iterator(), const_child_iterator());
		2420	}
		2421
		2422	child_range used_children() {
		2423	return child_range(child_iterator(), child_iterator());
		2424	}
		2425	const_child_range used_children() const {
		2426	return const_child_range(const_child_iterator(), const_child_iterator());
		2427	}
		2428
		2429	static bool classof(const OMPClause *T) {
		2430	return T->getClauseKind() == llvm::omp::OMPC_acquire;
		2431	}
		2432	};
		2433
		2434	/// This represents 'release' clause in the '#pragma omp atomic\|flush'
		2435	/// directives.
		2436	///
		2437	/// \code
		2438	/// #pragma omp flush release
		2439	/// \endcode
		2440	/// In this example directive '#pragma omp flush' has 'release' clause.
		2441	class OMPReleaseClause final : public OMPClause {
		2442	public:
		2443	/// Build 'release' clause.
		2444	///
		2445	/// \param StartLoc Starting location of the clause.
		2446	/// \param EndLoc Ending location of the clause.
		2447	OMPReleaseClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2448	: OMPClause(llvm::omp::OMPC_release, StartLoc, EndLoc) {}
		2449
		2450	/// Build an empty clause.
		2451	OMPReleaseClause()
		2452	: OMPClause(llvm::omp::OMPC_release, SourceLocation(), SourceLocation()) {
		2453	}
		2454
		2455	child_range children() {
		2456	return child_range(child_iterator(), child_iterator());
		2457	}
		2458
		2459	const_child_range children() const {
		2460	return const_child_range(const_child_iterator(), const_child_iterator());
		2461	}
		2462
		2463	child_range used_children() {
		2464	return child_range(child_iterator(), child_iterator());
		2465	}
		2466	const_child_range used_children() const {
		2467	return const_child_range(const_child_iterator(), const_child_iterator());
		2468	}
		2469
		2470	static bool classof(const OMPClause *T) {
		2471	return T->getClauseKind() == llvm::omp::OMPC_release;
		2472	}
		2473	};
		2474
		2475	/// This represents 'relaxed' clause in the '#pragma omp atomic'
		2476	/// directives.
		2477	///
		2478	/// \code
		2479	/// #pragma omp atomic relaxed
		2480	/// \endcode
		2481	/// In this example directive '#pragma omp atomic' has 'relaxed' clause.
		2482	class OMPRelaxedClause final : public OMPClause {
		2483	public:
		2484	/// Build 'relaxed' clause.
		2485	///
		2486	/// \param StartLoc Starting location of the clause.
		2487	/// \param EndLoc Ending location of the clause.
		2488	OMPRelaxedClause(SourceLocation StartLoc, SourceLocation EndLoc)
		2489	: OMPClause(llvm::omp::OMPC_relaxed, StartLoc, EndLoc) {}
		2490
		2491	/// Build an empty clause.
		2492	OMPRelaxedClause()
		2493	: OMPClause(llvm::omp::OMPC_relaxed, SourceLocation(), SourceLocation()) {
		2494	}
		2495
		2496	child_range children() {
		2497	return child_range(child_iterator(), child_iterator());
		2498	}
		2499
		2500	const_child_range children() const {
		2501	return const_child_range(const_child_iterator(), const_child_iterator());
		2502	}
		2503
		2504	child_range used_children() {
		2505	return child_range(child_iterator(), child_iterator());
		2506	}
		2507	const_child_range used_children() const {
		2508	return const_child_range(const_child_iterator(), const_child_iterator());
		2509	}
		2510
		2511	static bool classof(const OMPClause *T) {
		2512	return T->getClauseKind() == llvm::omp::OMPC_relaxed;
		2513	}
		2514	};
		2515
		2516	/// This represents clause 'private' in the '#pragma omp ...' directives.
		2517	///
		2518	/// \code
		2519	/// #pragma omp parallel private(a,b)
		2520	/// \endcode
		2521	/// In this example directive '#pragma omp parallel' has clause 'private'
		2522	/// with the variables 'a' and 'b'.
		2523	class OMPPrivateClause final
		2524	: public OMPVarListClause<OMPPrivateClause>,
		2525	private llvm::TrailingObjects<OMPPrivateClause, Expr *> {
		2526	friend class OMPClauseReader;
		2527	friend OMPVarListClause;
		2528	friend TrailingObjects;
		2529
		2530	/// Build clause with number of variables \a N.
		2531	///
		2532	/// \param StartLoc Starting location of the clause.
		2533	/// \param LParenLoc Location of '('.
		2534	/// \param EndLoc Ending location of the clause.
		2535	/// \param N Number of the variables in the clause.
		2536	OMPPrivateClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		2537	SourceLocation EndLoc, unsigned N)
		2538	: OMPVarListClause<OMPPrivateClause>(llvm::omp::OMPC_private, StartLoc,
		2539	LParenLoc, EndLoc, N) {}
		2540
		2541	/// Build an empty clause.
		2542	///
		2543	/// \param N Number of variables.
		2544	explicit OMPPrivateClause(unsigned N)
		2545	: OMPVarListClause<OMPPrivateClause>(llvm::omp::OMPC_private,
		2546	SourceLocation(), SourceLocation(),
		2547	SourceLocation(), N) {}
		2548
		2549	/// Sets the list of references to private copies with initializers for
		2550	/// new private variables.
		2551	/// \param VL List of references.
		2552	void setPrivateCopies(ArrayRef<Expr *> VL);
		2553
		2554	/// Gets the list of references to private copies with initializers for
		2555	/// new private variables.
		2556	MutableArrayRef<Expr *> getPrivateCopies() {
		2557	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		2558	}
		2559	ArrayRef<const Expr *> getPrivateCopies() const {
		2560	return llvm::ArrayRef(varlist_end(), varlist_size());
		2561	}
		2562
		2563	public:
		2564	/// Creates clause with a list of variables \a VL.
		2565	///
		2566	/// \param C AST context.
		2567	/// \param StartLoc Starting location of the clause.
		2568	/// \param LParenLoc Location of '('.
		2569	/// \param EndLoc Ending location of the clause.
		2570	/// \param VL List of references to the variables.
		2571	/// \param PrivateVL List of references to private copies with initializers.
		2572	static OMPPrivateClause *Create(const ASTContext &C, SourceLocation StartLoc,
		2573	SourceLocation LParenLoc,
		2574	SourceLocation EndLoc, ArrayRef<Expr *> VL,
		2575	ArrayRef<Expr *> PrivateVL);
		2576
		2577	/// Creates an empty clause with the place for \a N variables.
		2578	///
		2579	/// \param C AST context.
		2580	/// \param N The number of variables.
		2581	static OMPPrivateClause *CreateEmpty(const ASTContext &C, unsigned N);
		2582
		2583	using private_copies_iterator = MutableArrayRef<Expr *>::iterator;
		2584	using private_copies_const_iterator = ArrayRef<const Expr *>::iterator;
		2585	using private_copies_range = llvm::iterator_range<private_copies_iterator>;
		2586	using private_copies_const_range =
		2587	llvm::iterator_range<private_copies_const_iterator>;
		2588
		2589	private_copies_range private_copies() {
		2590	return private_copies_range(getPrivateCopies().begin(),
		2591	getPrivateCopies().end());
		2592	}
		2593
		2594	private_copies_const_range private_copies() const {
		2595	return private_copies_const_range(getPrivateCopies().begin(),
		2596	getPrivateCopies().end());
		2597	}
		2598
		2599	child_range children() {
		2600	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		2601	reinterpret_cast<Stmt **>(varlist_end()));
		2602	}
		2603
		2604	const_child_range children() const {
		2605	auto Children = const_cast<OMPPrivateClause *>(this)->children();
		2606	return const_child_range(Children.begin(), Children.end());
		2607	}
		2608
		2609	child_range used_children() {
		2610	return child_range(child_iterator(), child_iterator());
		2611	}
		2612	const_child_range used_children() const {
		2613	return const_child_range(const_child_iterator(), const_child_iterator());
		2614	}
		2615
		2616	static bool classof(const OMPClause *T) {
		2617	return T->getClauseKind() == llvm::omp::OMPC_private;
		2618	}
		2619	};
		2620
		2621	/// This represents clause 'firstprivate' in the '#pragma omp ...'
		2622	/// directives.
		2623	///
		2624	/// \code
		2625	/// #pragma omp parallel firstprivate(a,b)
		2626	/// \endcode
		2627	/// In this example directive '#pragma omp parallel' has clause 'firstprivate'
		2628	/// with the variables 'a' and 'b'.
		2629	class OMPFirstprivateClause final
		2630	: public OMPVarListClause<OMPFirstprivateClause>,
		2631	public OMPClauseWithPreInit,
		2632	private llvm::TrailingObjects<OMPFirstprivateClause, Expr *> {
		2633	friend class OMPClauseReader;
		2634	friend OMPVarListClause;
		2635	friend TrailingObjects;
		2636
		2637	/// Build clause with number of variables \a N.
		2638	///
		2639	/// \param StartLoc Starting location of the clause.
		2640	/// \param LParenLoc Location of '('.
		2641	/// \param EndLoc Ending location of the clause.
		2642	/// \param N Number of the variables in the clause.
		2643	OMPFirstprivateClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		2644	SourceLocation EndLoc, unsigned N)
		2645	: OMPVarListClause<OMPFirstprivateClause>(llvm::omp::OMPC_firstprivate,
		2646	StartLoc, LParenLoc, EndLoc, N),
		2647	OMPClauseWithPreInit(this) {}
		2648
		2649	/// Build an empty clause.
		2650	///
		2651	/// \param N Number of variables.
		2652	explicit OMPFirstprivateClause(unsigned N)
		2653	: OMPVarListClause<OMPFirstprivateClause>(
		2654	llvm::omp::OMPC_firstprivate, SourceLocation(), SourceLocation(),
		2655	SourceLocation(), N),
		2656	OMPClauseWithPreInit(this) {}
		2657
		2658	/// Sets the list of references to private copies with initializers for
		2659	/// new private variables.
		2660	/// \param VL List of references.
		2661	void setPrivateCopies(ArrayRef<Expr *> VL);
		2662
		2663	/// Gets the list of references to private copies with initializers for
		2664	/// new private variables.
		2665	MutableArrayRef<Expr *> getPrivateCopies() {
		2666	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		2667	}
		2668	ArrayRef<const Expr *> getPrivateCopies() const {
		2669	return llvm::ArrayRef(varlist_end(), varlist_size());
		2670	}
		2671
		2672	/// Sets the list of references to initializer variables for new
		2673	/// private variables.
		2674	/// \param VL List of references.
		2675	void setInits(ArrayRef<Expr *> VL);
		2676
		2677	/// Gets the list of references to initializer variables for new
		2678	/// private variables.
		2679	MutableArrayRef<Expr *> getInits() {
		2680	return MutableArrayRef<Expr *>(getPrivateCopies().end(), varlist_size());
		2681	}
		2682	ArrayRef<const Expr *> getInits() const {
		2683	return llvm::ArrayRef(getPrivateCopies().end(), varlist_size());
		2684	}
		2685
		2686	public:
		2687	/// Creates clause with a list of variables \a VL.
		2688	///
		2689	/// \param C AST context.
		2690	/// \param StartLoc Starting location of the clause.
		2691	/// \param LParenLoc Location of '('.
		2692	/// \param EndLoc Ending location of the clause.
		2693	/// \param VL List of references to the original variables.
		2694	/// \param PrivateVL List of references to private copies with initializers.
		2695	/// \param InitVL List of references to auto generated variables used for
		2696	/// initialization of a single array element. Used if firstprivate variable is
		2697	/// of array type.
		2698	/// \param PreInit Statement that must be executed before entering the OpenMP
		2699	/// region with this clause.
		2700	static OMPFirstprivateClause *
		2701	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		2702	SourceLocation EndLoc, ArrayRef<Expr > VL, ArrayRef<Expr > PrivateVL,
		2703	ArrayRef<Expr > InitVL, Stmt PreInit);
		2704
		2705	/// Creates an empty clause with the place for \a N variables.
		2706	///
		2707	/// \param C AST context.
		2708	/// \param N The number of variables.
		2709	static OMPFirstprivateClause *CreateEmpty(const ASTContext &C, unsigned N);
		2710
		2711	using private_copies_iterator = MutableArrayRef<Expr *>::iterator;
		2712	using private_copies_const_iterator = ArrayRef<const Expr *>::iterator;
		2713	using private_copies_range = llvm::iterator_range<private_copies_iterator>;
		2714	using private_copies_const_range =
		2715	llvm::iterator_range<private_copies_const_iterator>;
		2716
		2717	private_copies_range private_copies() {
		2718	return private_copies_range(getPrivateCopies().begin(),
		2719	getPrivateCopies().end());
		2720	}
		2721	private_copies_const_range private_copies() const {
		2722	return private_copies_const_range(getPrivateCopies().begin(),
		2723	getPrivateCopies().end());
		2724	}
		2725
		2726	using inits_iterator = MutableArrayRef<Expr *>::iterator;
		2727	using inits_const_iterator = ArrayRef<const Expr *>::iterator;
		2728	using inits_range = llvm::iterator_range<inits_iterator>;
		2729	using inits_const_range = llvm::iterator_range<inits_const_iterator>;
		2730
		2731	inits_range inits() {
		2732	return inits_range(getInits().begin(), getInits().end());
		2733	}
		2734	inits_const_range inits() const {
		2735	return inits_const_range(getInits().begin(), getInits().end());
		2736	}
		2737
		2738	child_range children() {
		2739	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		2740	reinterpret_cast<Stmt **>(varlist_end()));
		2741	}
		2742
		2743	const_child_range children() const {
		2744	auto Children = const_cast<OMPFirstprivateClause *>(this)->children();
		2745	return const_child_range(Children.begin(), Children.end());
		2746	}
		2747
		2748	child_range used_children() {
		2749	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		2750	reinterpret_cast<Stmt **>(varlist_end()));
		2751	}
		2752	const_child_range used_children() const {
		2753	auto Children = const_cast<OMPFirstprivateClause *>(this)->used_children();
		2754	return const_child_range(Children.begin(), Children.end());
		2755	}
		2756
		2757	static bool classof(const OMPClause *T) {
		2758	return T->getClauseKind() == llvm::omp::OMPC_firstprivate;
		2759	}
		2760	};
		2761
		2762	/// This represents clause 'lastprivate' in the '#pragma omp ...'
		2763	/// directives.
		2764	///
		2765	/// \code
		2766	/// #pragma omp simd lastprivate(a,b)
		2767	/// \endcode
		2768	/// In this example directive '#pragma omp simd' has clause 'lastprivate'
		2769	/// with the variables 'a' and 'b'.
		2770	class OMPLastprivateClause final
		2771	: public OMPVarListClause<OMPLastprivateClause>,
		2772	public OMPClauseWithPostUpdate,
		2773	private llvm::TrailingObjects<OMPLastprivateClause, Expr *> {
		2774	// There are 4 additional tail-allocated arrays at the end of the class:
		2775	// 1. Contains list of pseudo variables with the default initialization for
		2776	// each non-firstprivate variables. Used in codegen for initialization of
		2777	// lastprivate copies.
		2778	// 2. List of helper expressions for proper generation of assignment operation
		2779	// required for lastprivate clause. This list represents private variables
		2780	// (for arrays, single array element).
		2781	// 3. List of helper expressions for proper generation of assignment operation
		2782	// required for lastprivate clause. This list represents original variables
		2783	// (for arrays, single array element).
		2784	// 4. List of helper expressions that represents assignment operation:
		2785	// \code
		2786	// DstExprs = SrcExprs;
		2787	// \endcode
		2788	// Required for proper codegen of final assignment performed by the
		2789	// lastprivate clause.
		2790	friend class OMPClauseReader;
		2791	friend OMPVarListClause;
		2792	friend TrailingObjects;
		2793
		2794	/// Optional lastprivate kind, e.g. 'conditional', if specified by user.
		2795	OpenMPLastprivateModifier LPKind;
		2796	/// Optional location of the lasptrivate kind, if specified by user.
		2797	SourceLocation LPKindLoc;
		2798	/// Optional colon location, if specified by user.
		2799	SourceLocation ColonLoc;
		2800
		2801	/// Build clause with number of variables \a N.
		2802	///
		2803	/// \param StartLoc Starting location of the clause.
		2804	/// \param LParenLoc Location of '('.
		2805	/// \param EndLoc Ending location of the clause.
		2806	/// \param N Number of the variables in the clause.
		2807	OMPLastprivateClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		2808	SourceLocation EndLoc, OpenMPLastprivateModifier LPKind,
		2809	SourceLocation LPKindLoc, SourceLocation ColonLoc,
		2810	unsigned N)
		2811	: OMPVarListClause<OMPLastprivateClause>(llvm::omp::OMPC_lastprivate,
		2812	StartLoc, LParenLoc, EndLoc, N),
		2813	OMPClauseWithPostUpdate(this), LPKind(LPKind), LPKindLoc(LPKindLoc),
		2814	ColonLoc(ColonLoc) {}
		2815
		2816	/// Build an empty clause.
		2817	///
		2818	/// \param N Number of variables.
		2819	explicit OMPLastprivateClause(unsigned N)
		2820	: OMPVarListClause<OMPLastprivateClause>(
		2821	llvm::omp::OMPC_lastprivate, SourceLocation(), SourceLocation(),
		2822	SourceLocation(), N),
		2823	OMPClauseWithPostUpdate(this) {}
		2824
		2825	/// Get the list of helper expressions for initialization of private
		2826	/// copies for lastprivate variables.
		2827	MutableArrayRef<Expr *> getPrivateCopies() {
		2828	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		2829	}
		2830	ArrayRef<const Expr *> getPrivateCopies() const {
		2831	return llvm::ArrayRef(varlist_end(), varlist_size());
		2832	}
		2833
		2834	/// Set list of helper expressions, required for proper codegen of the
		2835	/// clause. These expressions represent private variables (for arrays, single
		2836	/// array element) in the final assignment statement performed by the
		2837	/// lastprivate clause.
		2838	void setSourceExprs(ArrayRef<Expr *> SrcExprs);
		2839
		2840	/// Get the list of helper source expressions.
		2841	MutableArrayRef<Expr *> getSourceExprs() {
		2842	return MutableArrayRef<Expr *>(getPrivateCopies().end(), varlist_size());
		2843	}
		2844	ArrayRef<const Expr *> getSourceExprs() const {
		2845	return llvm::ArrayRef(getPrivateCopies().end(), varlist_size());
		2846	}
		2847
		2848	/// Set list of helper expressions, required for proper codegen of the
		2849	/// clause. These expressions represent original variables (for arrays, single
		2850	/// array element) in the final assignment statement performed by the
		2851	/// lastprivate clause.
		2852	void setDestinationExprs(ArrayRef<Expr *> DstExprs);
		2853
		2854	/// Get the list of helper destination expressions.
		2855	MutableArrayRef<Expr *> getDestinationExprs() {
		2856	return MutableArrayRef<Expr *>(getSourceExprs().end(), varlist_size());
		2857	}
		2858	ArrayRef<const Expr *> getDestinationExprs() const {
		2859	return llvm::ArrayRef(getSourceExprs().end(), varlist_size());
		2860	}
		2861
		2862	/// Set list of helper assignment expressions, required for proper
		2863	/// codegen of the clause. These expressions are assignment expressions that
		2864	/// assign private copy of the variable to original variable.
		2865	void setAssignmentOps(ArrayRef<Expr *> AssignmentOps);
		2866
		2867	/// Get the list of helper assignment expressions.
		2868	MutableArrayRef<Expr *> getAssignmentOps() {
		2869	return MutableArrayRef<Expr *>(getDestinationExprs().end(), varlist_size());
		2870	}
		2871	ArrayRef<const Expr *> getAssignmentOps() const {
		2872	return llvm::ArrayRef(getDestinationExprs().end(), varlist_size());
		2873	}
		2874
		2875	/// Sets lastprivate kind.
		2876	void setKind(OpenMPLastprivateModifier Kind) { LPKind = Kind; }
		2877	/// Sets location of the lastprivate kind.
		2878	void setKindLoc(SourceLocation Loc) { LPKindLoc = Loc; }
		2879	/// Sets colon symbol location.
		2880	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		2881
		2882	public:
		2883	/// Creates clause with a list of variables \a VL.
		2884	///
		2885	/// \param C AST context.
		2886	/// \param StartLoc Starting location of the clause.
		2887	/// \param LParenLoc Location of '('.
		2888	/// \param EndLoc Ending location of the clause.
		2889	/// \param VL List of references to the variables.
		2890	/// \param SrcExprs List of helper expressions for proper generation of
		2891	/// assignment operation required for lastprivate clause. This list represents
		2892	/// private variables (for arrays, single array element).
		2893	/// \param DstExprs List of helper expressions for proper generation of
		2894	/// assignment operation required for lastprivate clause. This list represents
		2895	/// original variables (for arrays, single array element).
		2896	/// \param AssignmentOps List of helper expressions that represents assignment
		2897	/// operation:
		2898	/// \code
		2899	/// DstExprs = SrcExprs;
		2900	/// \endcode
		2901	/// Required for proper codegen of final assignment performed by the
		2902	/// lastprivate clause.
		2903	/// \param LPKind Lastprivate kind, e.g. 'conditional'.
		2904	/// \param LPKindLoc Location of the lastprivate kind.
		2905	/// \param ColonLoc Location of the ':' symbol if lastprivate kind is used.
		2906	/// \param PreInit Statement that must be executed before entering the OpenMP
		2907	/// region with this clause.
		2908	/// \param PostUpdate Expression that must be executed after exit from the
		2909	/// OpenMP region with this clause.
		2910	static OMPLastprivateClause *
		2911	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		2912	SourceLocation EndLoc, ArrayRef<Expr > VL, ArrayRef<Expr > SrcExprs,
		2913	ArrayRef<Expr > DstExprs, ArrayRef<Expr > AssignmentOps,
		2914	OpenMPLastprivateModifier LPKind, SourceLocation LPKindLoc,
		2915	SourceLocation ColonLoc, Stmt PreInit, Expr PostUpdate);
		2916
		2917	/// Creates an empty clause with the place for \a N variables.
		2918	///
		2919	/// \param C AST context.
		2920	/// \param N The number of variables.
		2921	static OMPLastprivateClause *CreateEmpty(const ASTContext &C, unsigned N);
		2922
		2923	/// Lastprivate kind.
		2924	OpenMPLastprivateModifier getKind() const { return LPKind; }
		2925	/// Returns the location of the lastprivate kind.
		2926	SourceLocation getKindLoc() const { return LPKindLoc; }
		2927	/// Returns the location of the ':' symbol, if any.
		2928	SourceLocation getColonLoc() const { return ColonLoc; }
		2929
		2930	using helper_expr_iterator = MutableArrayRef<Expr *>::iterator;
		2931	using helper_expr_const_iterator = ArrayRef<const Expr *>::iterator;
		2932	using helper_expr_range = llvm::iterator_range<helper_expr_iterator>;
		2933	using helper_expr_const_range =
		2934	llvm::iterator_range<helper_expr_const_iterator>;
		2935
		2936	/// Set list of helper expressions, required for generation of private
		2937	/// copies of original lastprivate variables.
		2938	void setPrivateCopies(ArrayRef<Expr *> PrivateCopies);
		2939
		2940	helper_expr_const_range private_copies() const {
		2941	return helper_expr_const_range(getPrivateCopies().begin(),
		2942	getPrivateCopies().end());
		2943	}
		2944
		2945	helper_expr_range private_copies() {
		2946	return helper_expr_range(getPrivateCopies().begin(),
		2947	getPrivateCopies().end());
		2948	}
		2949
		2950	helper_expr_const_range source_exprs() const {
		2951	return helper_expr_const_range(getSourceExprs().begin(),
		2952	getSourceExprs().end());
		2953	}
		2954
		2955	helper_expr_range source_exprs() {
		2956	return helper_expr_range(getSourceExprs().begin(), getSourceExprs().end());
		2957	}
		2958
		2959	helper_expr_const_range destination_exprs() const {
		2960	return helper_expr_const_range(getDestinationExprs().begin(),
		2961	getDestinationExprs().end());
		2962	}
		2963
		2964	helper_expr_range destination_exprs() {
		2965	return helper_expr_range(getDestinationExprs().begin(),
		2966	getDestinationExprs().end());
		2967	}
		2968
		2969	helper_expr_const_range assignment_ops() const {
		2970	return helper_expr_const_range(getAssignmentOps().begin(),
		2971	getAssignmentOps().end());
		2972	}
		2973
		2974	helper_expr_range assignment_ops() {
		2975	return helper_expr_range(getAssignmentOps().begin(),
		2976	getAssignmentOps().end());
		2977	}
		2978
		2979	child_range children() {
		2980	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		2981	reinterpret_cast<Stmt **>(varlist_end()));
		2982	}
		2983
		2984	const_child_range children() const {
		2985	auto Children = const_cast<OMPLastprivateClause *>(this)->children();
		2986	return const_child_range(Children.begin(), Children.end());
		2987	}
		2988
		2989	child_range used_children() {
		2990	return child_range(child_iterator(), child_iterator());
		2991	}
		2992	const_child_range used_children() const {
		2993	return const_child_range(const_child_iterator(), const_child_iterator());
		2994	}
		2995
		2996	static bool classof(const OMPClause *T) {
		2997	return T->getClauseKind() == llvm::omp::OMPC_lastprivate;
		2998	}
		2999	};
		3000
		3001	/// This represents clause 'shared' in the '#pragma omp ...' directives.
		3002	///
		3003	/// \code
		3004	/// #pragma omp parallel shared(a,b)
		3005	/// \endcode
		3006	/// In this example directive '#pragma omp parallel' has clause 'shared'
		3007	/// with the variables 'a' and 'b'.
		3008	class OMPSharedClause final
		3009	: public OMPVarListClause<OMPSharedClause>,
		3010	private llvm::TrailingObjects<OMPSharedClause, Expr *> {
		3011	friend OMPVarListClause;
		3012	friend TrailingObjects;
		3013
		3014	/// Build clause with number of variables \a N.
		3015	///
		3016	/// \param StartLoc Starting location of the clause.
		3017	/// \param LParenLoc Location of '('.
		3018	/// \param EndLoc Ending location of the clause.
		3019	/// \param N Number of the variables in the clause.
		3020	OMPSharedClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		3021	SourceLocation EndLoc, unsigned N)
		3022	: OMPVarListClause<OMPSharedClause>(llvm::omp::OMPC_shared, StartLoc,
		3023	LParenLoc, EndLoc, N) {}
		3024
		3025	/// Build an empty clause.
		3026	///
		3027	/// \param N Number of variables.
		3028	explicit OMPSharedClause(unsigned N)
		3029	: OMPVarListClause<OMPSharedClause>(llvm::omp::OMPC_shared,
		3030	SourceLocation(), SourceLocation(),
		3031	SourceLocation(), N) {}
		3032
		3033	public:
		3034	/// Creates clause with a list of variables \a VL.
		3035	///
		3036	/// \param C AST context.
		3037	/// \param StartLoc Starting location of the clause.
		3038	/// \param LParenLoc Location of '('.
		3039	/// \param EndLoc Ending location of the clause.
		3040	/// \param VL List of references to the variables.
		3041	static OMPSharedClause *Create(const ASTContext &C, SourceLocation StartLoc,
		3042	SourceLocation LParenLoc,
		3043	SourceLocation EndLoc, ArrayRef<Expr *> VL);
		3044
		3045	/// Creates an empty clause with \a N variables.
		3046	///
		3047	/// \param C AST context.
		3048	/// \param N The number of variables.
		3049	static OMPSharedClause *CreateEmpty(const ASTContext &C, unsigned N);
		3050
		3051	child_range children() {
		3052	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		3053	reinterpret_cast<Stmt **>(varlist_end()));
		3054	}
		3055
		3056	const_child_range children() const {
		3057	auto Children = const_cast<OMPSharedClause *>(this)->children();
		3058	return const_child_range(Children.begin(), Children.end());
		3059	}
		3060
		3061	child_range used_children() {
		3062	return child_range(child_iterator(), child_iterator());
		3063	}
		3064	const_child_range used_children() const {
		3065	return const_child_range(const_child_iterator(), const_child_iterator());
		3066	}
		3067
		3068	static bool classof(const OMPClause *T) {
		3069	return T->getClauseKind() == llvm::omp::OMPC_shared;
		3070	}
		3071	};
		3072
		3073	/// This represents clause 'reduction' in the '#pragma omp ...'
		3074	/// directives.
		3075	///
		3076	/// \code
		3077	/// #pragma omp parallel reduction(+:a,b)
		3078	/// \endcode
		3079	/// In this example directive '#pragma omp parallel' has clause 'reduction'
		3080	/// with operator '+' and the variables 'a' and 'b'.
		3081	class OMPReductionClause final
		3082	: public OMPVarListClause<OMPReductionClause>,
		3083	public OMPClauseWithPostUpdate,
		3084	private llvm::TrailingObjects<OMPReductionClause, Expr *> {
		3085	friend class OMPClauseReader;
		3086	friend OMPVarListClause;
		3087	friend TrailingObjects;
		3088
		3089	/// Reduction modifier.
		3090	OpenMPReductionClauseModifier Modifier = OMPC_REDUCTION_unknown;
		3091
		3092	/// Reduction modifier location.
		3093	SourceLocation ModifierLoc;
		3094
		3095	/// Location of ':'.
		3096	SourceLocation ColonLoc;
		3097
		3098	/// Nested name specifier for C++.
		3099	NestedNameSpecifierLoc QualifierLoc;
		3100
		3101	/// Name of custom operator.
		3102	DeclarationNameInfo NameInfo;
		3103
		3104	/// Build clause with number of variables \a N.
		3105	///
		3106	/// \param StartLoc Starting location of the clause.
		3107	/// \param LParenLoc Location of '('.
		3108	/// \param ModifierLoc Modifier location.
		3109	/// \param ColonLoc Location of ':'.
		3110	/// \param EndLoc Ending location of the clause.
		3111	/// \param N Number of the variables in the clause.
		3112	/// \param QualifierLoc The nested-name qualifier with location information
		3113	/// \param NameInfo The full name info for reduction identifier.
		3114	OMPReductionClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		3115	SourceLocation ModifierLoc, SourceLocation ColonLoc,
		3116	SourceLocation EndLoc,
		3117	OpenMPReductionClauseModifier Modifier, unsigned N,
		3118	NestedNameSpecifierLoc QualifierLoc,
		3119	const DeclarationNameInfo &NameInfo)
		3120	: OMPVarListClause<OMPReductionClause>(llvm::omp::OMPC_reduction,
		3121	StartLoc, LParenLoc, EndLoc, N),
		3122	OMPClauseWithPostUpdate(this), Modifier(Modifier),
		3123	ModifierLoc(ModifierLoc), ColonLoc(ColonLoc),
		3124	QualifierLoc(QualifierLoc), NameInfo(NameInfo) {}
		3125
		3126	/// Build an empty clause.
		3127	///
		3128	/// \param N Number of variables.
		3129	explicit OMPReductionClause(unsigned N)
		3130	: OMPVarListClause<OMPReductionClause>(llvm::omp::OMPC_reduction,
		3131	SourceLocation(), SourceLocation(),
		3132	SourceLocation(), N),
		3133	OMPClauseWithPostUpdate(this) {}
		3134
		3135	/// Sets reduction modifier.
		3136	void setModifier(OpenMPReductionClauseModifier M) { Modifier = M; }
		3137
		3138	/// Sets location of the modifier.
		3139	void setModifierLoc(SourceLocation Loc) { ModifierLoc = Loc; }
		3140
		3141	/// Sets location of ':' symbol in clause.
		3142	void setColonLoc(SourceLocation CL) { ColonLoc = CL; }
		3143
		3144	/// Sets the name info for specified reduction identifier.
		3145	void setNameInfo(DeclarationNameInfo DNI) { NameInfo = DNI; }
		3146
		3147	/// Sets the nested name specifier.
		3148	void setQualifierLoc(NestedNameSpecifierLoc NSL) { QualifierLoc = NSL; }
		3149
		3150	/// Set list of helper expressions, required for proper codegen of the
		3151	/// clause. These expressions represent private copy of the reduction
		3152	/// variable.
		3153	void setPrivates(ArrayRef<Expr *> Privates);
		3154
		3155	/// Get the list of helper privates.
		3156	MutableArrayRef<Expr *> getPrivates() {
		3157	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		3158	}
		3159	ArrayRef<const Expr *> getPrivates() const {
		3160	return llvm::ArrayRef(varlist_end(), varlist_size());
		3161	}
		3162
		3163	/// Set list of helper expressions, required for proper codegen of the
		3164	/// clause. These expressions represent LHS expression in the final
		3165	/// reduction expression performed by the reduction clause.
		3166	void setLHSExprs(ArrayRef<Expr *> LHSExprs);
		3167
		3168	/// Get the list of helper LHS expressions.
		3169	MutableArrayRef<Expr *> getLHSExprs() {
		3170	return MutableArrayRef<Expr *>(getPrivates().end(), varlist_size());
		3171	}
		3172	ArrayRef<const Expr *> getLHSExprs() const {
		3173	return llvm::ArrayRef(getPrivates().end(), varlist_size());
		3174	}
		3175
		3176	/// Set list of helper expressions, required for proper codegen of the
		3177	/// clause. These expressions represent RHS expression in the final
		3178	/// reduction expression performed by the reduction clause.
		3179	/// Also, variables in these expressions are used for proper initialization of
		3180	/// reduction copies.
		3181	void setRHSExprs(ArrayRef<Expr *> RHSExprs);
		3182
		3183	/// Get the list of helper destination expressions.
		3184	MutableArrayRef<Expr *> getRHSExprs() {
		3185	return MutableArrayRef<Expr *>(getLHSExprs().end(), varlist_size());
		3186	}
		3187	ArrayRef<const Expr *> getRHSExprs() const {
		3188	return llvm::ArrayRef(getLHSExprs().end(), varlist_size());
		3189	}
		3190
		3191	/// Set list of helper reduction expressions, required for proper
		3192	/// codegen of the clause. These expressions are binary expressions or
		3193	/// operator/custom reduction call that calculates new value from source
		3194	/// helper expressions to destination helper expressions.
		3195	void setReductionOps(ArrayRef<Expr *> ReductionOps);
		3196
		3197	/// Get the list of helper reduction expressions.
		3198	MutableArrayRef<Expr *> getReductionOps() {
		3199	return MutableArrayRef<Expr *>(getRHSExprs().end(), varlist_size());
		3200	}
		3201	ArrayRef<const Expr *> getReductionOps() const {
		3202	return llvm::ArrayRef(getRHSExprs().end(), varlist_size());
		3203	}
		3204
		3205	/// Set list of helper copy operations for inscan reductions.
		3206	/// The form is: Temps[i] = LHS[i];
		3207	void setInscanCopyOps(ArrayRef<Expr *> Ops);
		3208
		3209	/// Get the list of helper inscan copy operations.
		3210	MutableArrayRef<Expr *> getInscanCopyOps() {
		3211	return MutableArrayRef<Expr *>(getReductionOps().end(), varlist_size());
		3212	}
		3213	ArrayRef<const Expr *> getInscanCopyOps() const {
		3214	return llvm::ArrayRef(getReductionOps().end(), varlist_size());
		3215	}
		3216
		3217	/// Set list of helper temp vars for inscan copy array operations.
		3218	void setInscanCopyArrayTemps(ArrayRef<Expr *> CopyArrayTemps);
		3219
		3220	/// Get the list of helper inscan copy temps.
		3221	MutableArrayRef<Expr *> getInscanCopyArrayTemps() {
		3222	return MutableArrayRef<Expr *>(getInscanCopyOps().end(), varlist_size());
		3223	}
		3224	ArrayRef<const Expr *> getInscanCopyArrayTemps() const {
		3225	return llvm::ArrayRef(getInscanCopyOps().end(), varlist_size());
		3226	}
		3227
		3228	/// Set list of helper temp elements vars for inscan copy array operations.
		3229	void setInscanCopyArrayElems(ArrayRef<Expr *> CopyArrayElems);
		3230
		3231	/// Get the list of helper inscan copy temps.
		3232	MutableArrayRef<Expr *> getInscanCopyArrayElems() {
		3233	return MutableArrayRef<Expr *>(getInscanCopyArrayTemps().end(),
		3234	varlist_size());
		3235	}
		3236	ArrayRef<const Expr *> getInscanCopyArrayElems() const {
		3237	return llvm::ArrayRef(getInscanCopyArrayTemps().end(), varlist_size());
		3238	}
		3239
		3240	public:
		3241	/// Creates clause with a list of variables \a VL.
		3242	///
		3243	/// \param StartLoc Starting location of the clause.
		3244	/// \param LParenLoc Location of '('.
		3245	/// \param ModifierLoc Modifier location.
		3246	/// \param ColonLoc Location of ':'.
		3247	/// \param EndLoc Ending location of the clause.
		3248	/// \param VL The variables in the clause.
		3249	/// \param QualifierLoc The nested-name qualifier with location information
		3250	/// \param NameInfo The full name info for reduction identifier.
		3251	/// \param Privates List of helper expressions for proper generation of
		3252	/// private copies.
		3253	/// \param LHSExprs List of helper expressions for proper generation of
		3254	/// assignment operation required for copyprivate clause. This list represents
		3255	/// LHSs of the reduction expressions.
		3256	/// \param RHSExprs List of helper expressions for proper generation of
		3257	/// assignment operation required for copyprivate clause. This list represents
		3258	/// RHSs of the reduction expressions.
		3259	/// Also, variables in these expressions are used for proper initialization of
		3260	/// reduction copies.
		3261	/// \param ReductionOps List of helper expressions that represents reduction
		3262	/// expressions:
		3263	/// \code
		3264	/// LHSExprs binop RHSExprs;
		3265	/// operator binop(LHSExpr, RHSExpr);
		3266	/// <CutomReduction>(LHSExpr, RHSExpr);
		3267	/// \endcode
		3268	/// Required for proper codegen of final reduction operation performed by the
		3269	/// reduction clause.
		3270	/// \param CopyOps List of copy operations for inscan reductions:
		3271	/// \code
		3272	/// TempExprs = LHSExprs;
		3273	/// \endcode
		3274	/// \param CopyArrayTemps Temp arrays for prefix sums.
		3275	/// \param CopyArrayElems Temp arrays for prefix sums.
		3276	/// \param PreInit Statement that must be executed before entering the OpenMP
		3277	/// region with this clause.
		3278	/// \param PostUpdate Expression that must be executed after exit from the
		3279	/// OpenMP region with this clause.
		3280	static OMPReductionClause *
		3281	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		3282	SourceLocation ModifierLoc, SourceLocation ColonLoc,
		3283	SourceLocation EndLoc, OpenMPReductionClauseModifier Modifier,
		3284	ArrayRef<Expr *> VL, NestedNameSpecifierLoc QualifierLoc,
		3285	const DeclarationNameInfo &NameInfo, ArrayRef<Expr *> Privates,
		3286	ArrayRef<Expr > LHSExprs, ArrayRef<Expr > RHSExprs,
		3287	ArrayRef<Expr > ReductionOps, ArrayRef<Expr > CopyOps,
		3288	ArrayRef<Expr > CopyArrayTemps, ArrayRef<Expr > CopyArrayElems,
		3289	Stmt PreInit, Expr PostUpdate);
		3290
		3291	/// Creates an empty clause with the place for \a N variables.
		3292	///
		3293	/// \param C AST context.
		3294	/// \param N The number of variables.
		3295	/// \param Modifier Reduction modifier.
		3296	static OMPReductionClause *
		3297	CreateEmpty(const ASTContext &C, unsigned N,
		3298	OpenMPReductionClauseModifier Modifier);
		3299
		3300	/// Returns modifier.
		3301	OpenMPReductionClauseModifier getModifier() const { return Modifier; }
		3302
		3303	/// Returns modifier location.
		3304	SourceLocation getModifierLoc() const { return ModifierLoc; }
		3305
		3306	/// Gets location of ':' symbol in clause.
		3307	SourceLocation getColonLoc() const { return ColonLoc; }
		3308
		3309	/// Gets the name info for specified reduction identifier.
		3310	const DeclarationNameInfo &getNameInfo() const { return NameInfo; }
		3311
		3312	/// Gets the nested name specifier.
		3313	NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
		3314
		3315	using helper_expr_iterator = MutableArrayRef<Expr *>::iterator;
		3316	using helper_expr_const_iterator = ArrayRef<const Expr *>::iterator;
		3317	using helper_expr_range = llvm::iterator_range<helper_expr_iterator>;
		3318	using helper_expr_const_range =
		3319	llvm::iterator_range<helper_expr_const_iterator>;
		3320
		3321	helper_expr_const_range privates() const {
		3322	return helper_expr_const_range(getPrivates().begin(), getPrivates().end());
		3323	}
		3324
		3325	helper_expr_range privates() {
		3326	return helper_expr_range(getPrivates().begin(), getPrivates().end());
		3327	}
		3328
		3329	helper_expr_const_range lhs_exprs() const {
		3330	return helper_expr_const_range(getLHSExprs().begin(), getLHSExprs().end());
		3331	}
		3332
		3333	helper_expr_range lhs_exprs() {
		3334	return helper_expr_range(getLHSExprs().begin(), getLHSExprs().end());
		3335	}
		3336
		3337	helper_expr_const_range rhs_exprs() const {
		3338	return helper_expr_const_range(getRHSExprs().begin(), getRHSExprs().end());
		3339	}
		3340
		3341	helper_expr_range rhs_exprs() {
		3342	return helper_expr_range(getRHSExprs().begin(), getRHSExprs().end());
		3343	}
		3344
		3345	helper_expr_const_range reduction_ops() const {
		3346	return helper_expr_const_range(getReductionOps().begin(),
		3347	getReductionOps().end());
		3348	}
		3349
		3350	helper_expr_range reduction_ops() {
		3351	return helper_expr_range(getReductionOps().begin(),
		3352	getReductionOps().end());
		3353	}
		3354
		3355	helper_expr_const_range copy_ops() const {
		3356	return helper_expr_const_range(getInscanCopyOps().begin(),
		3357	getInscanCopyOps().end());
		3358	}
		3359
		3360	helper_expr_range copy_ops() {
		3361	return helper_expr_range(getInscanCopyOps().begin(),
		3362	getInscanCopyOps().end());
		3363	}
		3364
		3365	helper_expr_const_range copy_array_temps() const {
		3366	return helper_expr_const_range(getInscanCopyArrayTemps().begin(),
		3367	getInscanCopyArrayTemps().end());
		3368	}
		3369
		3370	helper_expr_range copy_array_temps() {
		3371	return helper_expr_range(getInscanCopyArrayTemps().begin(),
		3372	getInscanCopyArrayTemps().end());
		3373	}
		3374
		3375	helper_expr_const_range copy_array_elems() const {
		3376	return helper_expr_const_range(getInscanCopyArrayElems().begin(),
		3377	getInscanCopyArrayElems().end());
		3378	}
		3379
		3380	helper_expr_range copy_array_elems() {
		3381	return helper_expr_range(getInscanCopyArrayElems().begin(),
		3382	getInscanCopyArrayElems().end());
		3383	}
		3384
		3385	child_range children() {
		3386	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		3387	reinterpret_cast<Stmt **>(varlist_end()));
		3388	}
		3389
		3390	const_child_range children() const {
		3391	auto Children = const_cast<OMPReductionClause *>(this)->children();
		3392	return const_child_range(Children.begin(), Children.end());
		3393	}
		3394
		3395	child_range used_children() {
		3396	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		3397	reinterpret_cast<Stmt **>(varlist_end()));
		3398	}
		3399	const_child_range used_children() const {
		3400	auto Children = const_cast<OMPReductionClause *>(this)->used_children();
		3401	return const_child_range(Children.begin(), Children.end());
		3402	}
		3403
		3404	static bool classof(const OMPClause *T) {
		3405	return T->getClauseKind() == llvm::omp::OMPC_reduction;
		3406	}
		3407	};
		3408
		3409	/// This represents clause 'task_reduction' in the '#pragma omp taskgroup'
		3410	/// directives.
		3411	///
		3412	/// \code
		3413	/// #pragma omp taskgroup task_reduction(+:a,b)
		3414	/// \endcode
		3415	/// In this example directive '#pragma omp taskgroup' has clause
		3416	/// 'task_reduction' with operator '+' and the variables 'a' and 'b'.
		3417	class OMPTaskReductionClause final
		3418	: public OMPVarListClause<OMPTaskReductionClause>,
		3419	public OMPClauseWithPostUpdate,
		3420	private llvm::TrailingObjects<OMPTaskReductionClause, Expr *> {
		3421	friend class OMPClauseReader;
		3422	friend OMPVarListClause;
		3423	friend TrailingObjects;
		3424
		3425	/// Location of ':'.
		3426	SourceLocation ColonLoc;
		3427
		3428	/// Nested name specifier for C++.
		3429	NestedNameSpecifierLoc QualifierLoc;
		3430
		3431	/// Name of custom operator.
		3432	DeclarationNameInfo NameInfo;
		3433
		3434	/// Build clause with number of variables \a N.
		3435	///
		3436	/// \param StartLoc Starting location of the clause.
		3437	/// \param LParenLoc Location of '('.
		3438	/// \param EndLoc Ending location of the clause.
		3439	/// \param ColonLoc Location of ':'.
		3440	/// \param N Number of the variables in the clause.
		3441	/// \param QualifierLoc The nested-name qualifier with location information
		3442	/// \param NameInfo The full name info for reduction identifier.
		3443	OMPTaskReductionClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		3444	SourceLocation ColonLoc, SourceLocation EndLoc,
		3445	unsigned N, NestedNameSpecifierLoc QualifierLoc,
		3446	const DeclarationNameInfo &NameInfo)
		3447	: OMPVarListClause<OMPTaskReductionClause>(
		3448	llvm::omp::OMPC_task_reduction, StartLoc, LParenLoc, EndLoc, N),
		3449	OMPClauseWithPostUpdate(this), ColonLoc(ColonLoc),
		3450	QualifierLoc(QualifierLoc), NameInfo(NameInfo) {}
		3451
		3452	/// Build an empty clause.
		3453	///
		3454	/// \param N Number of variables.
		3455	explicit OMPTaskReductionClause(unsigned N)
		3456	: OMPVarListClause<OMPTaskReductionClause>(
		3457	llvm::omp::OMPC_task_reduction, SourceLocation(), SourceLocation(),
		3458	SourceLocation(), N),
		3459	OMPClauseWithPostUpdate(this) {}
		3460
		3461	/// Sets location of ':' symbol in clause.
		3462	void setColonLoc(SourceLocation CL) { ColonLoc = CL; }
		3463
		3464	/// Sets the name info for specified reduction identifier.
		3465	void setNameInfo(DeclarationNameInfo DNI) { NameInfo = DNI; }
		3466
		3467	/// Sets the nested name specifier.
		3468	void setQualifierLoc(NestedNameSpecifierLoc NSL) { QualifierLoc = NSL; }
		3469
		3470	/// Set list of helper expressions, required for proper codegen of the clause.
		3471	/// These expressions represent private copy of the reduction variable.
		3472	void setPrivates(ArrayRef<Expr *> Privates);
		3473
		3474	/// Get the list of helper privates.
		3475	MutableArrayRef<Expr *> getPrivates() {
		3476	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		3477	}
		3478	ArrayRef<const Expr *> getPrivates() const {
		3479	return llvm::ArrayRef(varlist_end(), varlist_size());
		3480	}
		3481
		3482	/// Set list of helper expressions, required for proper codegen of the clause.
		3483	/// These expressions represent LHS expression in the final reduction
		3484	/// expression performed by the reduction clause.
		3485	void setLHSExprs(ArrayRef<Expr *> LHSExprs);
		3486
		3487	/// Get the list of helper LHS expressions.
		3488	MutableArrayRef<Expr *> getLHSExprs() {
		3489	return MutableArrayRef<Expr *>(getPrivates().end(), varlist_size());
		3490	}
		3491	ArrayRef<const Expr *> getLHSExprs() const {
		3492	return llvm::ArrayRef(getPrivates().end(), varlist_size());
		3493	}
		3494
		3495	/// Set list of helper expressions, required for proper codegen of the clause.
		3496	/// These expressions represent RHS expression in the final reduction
		3497	/// expression performed by the reduction clause. Also, variables in these
		3498	/// expressions are used for proper initialization of reduction copies.
		3499	void setRHSExprs(ArrayRef<Expr *> RHSExprs);
		3500
		3501	/// Get the list of helper destination expressions.
		3502	MutableArrayRef<Expr *> getRHSExprs() {
		3503	return MutableArrayRef<Expr *>(getLHSExprs().end(), varlist_size());
		3504	}
		3505	ArrayRef<const Expr *> getRHSExprs() const {
		3506	return llvm::ArrayRef(getLHSExprs().end(), varlist_size());
		3507	}
		3508
		3509	/// Set list of helper reduction expressions, required for proper
		3510	/// codegen of the clause. These expressions are binary expressions or
		3511	/// operator/custom reduction call that calculates new value from source
		3512	/// helper expressions to destination helper expressions.
		3513	void setReductionOps(ArrayRef<Expr *> ReductionOps);
		3514
		3515	/// Get the list of helper reduction expressions.
		3516	MutableArrayRef<Expr *> getReductionOps() {
		3517	return MutableArrayRef<Expr *>(getRHSExprs().end(), varlist_size());
		3518	}
		3519	ArrayRef<const Expr *> getReductionOps() const {
		3520	return llvm::ArrayRef(getRHSExprs().end(), varlist_size());
		3521	}
		3522
		3523	public:
		3524	/// Creates clause with a list of variables \a VL.
		3525	///
		3526	/// \param StartLoc Starting location of the clause.
		3527	/// \param LParenLoc Location of '('.
		3528	/// \param ColonLoc Location of ':'.
		3529	/// \param EndLoc Ending location of the clause.
		3530	/// \param VL The variables in the clause.
		3531	/// \param QualifierLoc The nested-name qualifier with location information
		3532	/// \param NameInfo The full name info for reduction identifier.
		3533	/// \param Privates List of helper expressions for proper generation of
		3534	/// private copies.
		3535	/// \param LHSExprs List of helper expressions for proper generation of
		3536	/// assignment operation required for copyprivate clause. This list represents
		3537	/// LHSs of the reduction expressions.
		3538	/// \param RHSExprs List of helper expressions for proper generation of
		3539	/// assignment operation required for copyprivate clause. This list represents
		3540	/// RHSs of the reduction expressions.
		3541	/// Also, variables in these expressions are used for proper initialization of
		3542	/// reduction copies.
		3543	/// \param ReductionOps List of helper expressions that represents reduction
		3544	/// expressions:
		3545	/// \code
		3546	/// LHSExprs binop RHSExprs;
		3547	/// operator binop(LHSExpr, RHSExpr);
		3548	/// <CutomReduction>(LHSExpr, RHSExpr);
		3549	/// \endcode
		3550	/// Required for proper codegen of final reduction operation performed by the
		3551	/// reduction clause.
		3552	/// \param PreInit Statement that must be executed before entering the OpenMP
		3553	/// region with this clause.
		3554	/// \param PostUpdate Expression that must be executed after exit from the
		3555	/// OpenMP region with this clause.
		3556	static OMPTaskReductionClause *
		3557	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		3558	SourceLocation ColonLoc, SourceLocation EndLoc, ArrayRef<Expr *> VL,
		3559	NestedNameSpecifierLoc QualifierLoc,
		3560	const DeclarationNameInfo &NameInfo, ArrayRef<Expr *> Privates,
		3561	ArrayRef<Expr > LHSExprs, ArrayRef<Expr > RHSExprs,
		3562	ArrayRef<Expr > ReductionOps, Stmt PreInit, Expr *PostUpdate);
		3563
		3564	/// Creates an empty clause with the place for \a N variables.
		3565	///
		3566	/// \param C AST context.
		3567	/// \param N The number of variables.
		3568	static OMPTaskReductionClause *CreateEmpty(const ASTContext &C, unsigned N);
		3569
		3570	/// Gets location of ':' symbol in clause.
		3571	SourceLocation getColonLoc() const { return ColonLoc; }
		3572
		3573	/// Gets the name info for specified reduction identifier.
		3574	const DeclarationNameInfo &getNameInfo() const { return NameInfo; }
		3575
		3576	/// Gets the nested name specifier.
		3577	NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
		3578
		3579	using helper_expr_iterator = MutableArrayRef<Expr *>::iterator;
		3580	using helper_expr_const_iterator = ArrayRef<const Expr *>::iterator;
		3581	using helper_expr_range = llvm::iterator_range<helper_expr_iterator>;
		3582	using helper_expr_const_range =
		3583	llvm::iterator_range<helper_expr_const_iterator>;
		3584
		3585	helper_expr_const_range privates() const {
		3586	return helper_expr_const_range(getPrivates().begin(), getPrivates().end());
		3587	}
		3588
		3589	helper_expr_range privates() {
		3590	return helper_expr_range(getPrivates().begin(), getPrivates().end());
		3591	}
		3592
		3593	helper_expr_const_range lhs_exprs() const {
		3594	return helper_expr_const_range(getLHSExprs().begin(), getLHSExprs().end());
		3595	}
		3596
		3597	helper_expr_range lhs_exprs() {
		3598	return helper_expr_range(getLHSExprs().begin(), getLHSExprs().end());
		3599	}
		3600
		3601	helper_expr_const_range rhs_exprs() const {
		3602	return helper_expr_const_range(getRHSExprs().begin(), getRHSExprs().end());
		3603	}
		3604
		3605	helper_expr_range rhs_exprs() {
		3606	return helper_expr_range(getRHSExprs().begin(), getRHSExprs().end());
		3607	}
		3608
		3609	helper_expr_const_range reduction_ops() const {
		3610	return helper_expr_const_range(getReductionOps().begin(),
		3611	getReductionOps().end());
		3612	}
		3613
		3614	helper_expr_range reduction_ops() {
		3615	return helper_expr_range(getReductionOps().begin(),
		3616	getReductionOps().end());
		3617	}
		3618
		3619	child_range children() {
		3620	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		3621	reinterpret_cast<Stmt **>(varlist_end()));
		3622	}
		3623
		3624	const_child_range children() const {
		3625	auto Children = const_cast<OMPTaskReductionClause *>(this)->children();
		3626	return const_child_range(Children.begin(), Children.end());
		3627	}
		3628
		3629	child_range used_children() {
		3630	return child_range(child_iterator(), child_iterator());
		3631	}
		3632	const_child_range used_children() const {
		3633	return const_child_range(const_child_iterator(), const_child_iterator());
		3634	}
		3635
		3636	static bool classof(const OMPClause *T) {
		3637	return T->getClauseKind() == llvm::omp::OMPC_task_reduction;
		3638	}
		3639	};
		3640
		3641	/// This represents clause 'in_reduction' in the '#pragma omp task' directives.
		3642	///
		3643	/// \code
		3644	/// #pragma omp task in_reduction(+:a,b)
		3645	/// \endcode
		3646	/// In this example directive '#pragma omp task' has clause 'in_reduction' with
		3647	/// operator '+' and the variables 'a' and 'b'.
		3648	class OMPInReductionClause final
		3649	: public OMPVarListClause<OMPInReductionClause>,
		3650	public OMPClauseWithPostUpdate,
		3651	private llvm::TrailingObjects<OMPInReductionClause, Expr *> {
		3652	friend class OMPClauseReader;
		3653	friend OMPVarListClause;
		3654	friend TrailingObjects;
		3655
		3656	/// Location of ':'.
		3657	SourceLocation ColonLoc;
		3658
		3659	/// Nested name specifier for C++.
		3660	NestedNameSpecifierLoc QualifierLoc;
		3661
		3662	/// Name of custom operator.
		3663	DeclarationNameInfo NameInfo;
		3664
		3665	/// Build clause with number of variables \a N.
		3666	///
		3667	/// \param StartLoc Starting location of the clause.
		3668	/// \param LParenLoc Location of '('.
		3669	/// \param EndLoc Ending location of the clause.
		3670	/// \param ColonLoc Location of ':'.
		3671	/// \param N Number of the variables in the clause.
		3672	/// \param QualifierLoc The nested-name qualifier with location information
		3673	/// \param NameInfo The full name info for reduction identifier.
		3674	OMPInReductionClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		3675	SourceLocation ColonLoc, SourceLocation EndLoc,
		3676	unsigned N, NestedNameSpecifierLoc QualifierLoc,
		3677	const DeclarationNameInfo &NameInfo)
		3678	: OMPVarListClause<OMPInReductionClause>(llvm::omp::OMPC_in_reduction,
		3679	StartLoc, LParenLoc, EndLoc, N),
		3680	OMPClauseWithPostUpdate(this), ColonLoc(ColonLoc),
		3681	QualifierLoc(QualifierLoc), NameInfo(NameInfo) {}
		3682
		3683	/// Build an empty clause.
		3684	///
		3685	/// \param N Number of variables.
		3686	explicit OMPInReductionClause(unsigned N)
		3687	: OMPVarListClause<OMPInReductionClause>(
		3688	llvm::omp::OMPC_in_reduction, SourceLocation(), SourceLocation(),
		3689	SourceLocation(), N),
		3690	OMPClauseWithPostUpdate(this) {}
		3691
		3692	/// Sets location of ':' symbol in clause.
		3693	void setColonLoc(SourceLocation CL) { ColonLoc = CL; }
		3694
		3695	/// Sets the name info for specified reduction identifier.
		3696	void setNameInfo(DeclarationNameInfo DNI) { NameInfo = DNI; }
		3697
		3698	/// Sets the nested name specifier.
		3699	void setQualifierLoc(NestedNameSpecifierLoc NSL) { QualifierLoc = NSL; }
		3700
		3701	/// Set list of helper expressions, required for proper codegen of the clause.
		3702	/// These expressions represent private copy of the reduction variable.
		3703	void setPrivates(ArrayRef<Expr *> Privates);
		3704
		3705	/// Get the list of helper privates.
		3706	MutableArrayRef<Expr *> getPrivates() {
		3707	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		3708	}
		3709	ArrayRef<const Expr *> getPrivates() const {
		3710	return llvm::ArrayRef(varlist_end(), varlist_size());
		3711	}
		3712
		3713	/// Set list of helper expressions, required for proper codegen of the clause.
		3714	/// These expressions represent LHS expression in the final reduction
		3715	/// expression performed by the reduction clause.
		3716	void setLHSExprs(ArrayRef<Expr *> LHSExprs);
		3717
		3718	/// Get the list of helper LHS expressions.
		3719	MutableArrayRef<Expr *> getLHSExprs() {
		3720	return MutableArrayRef<Expr *>(getPrivates().end(), varlist_size());
		3721	}
		3722	ArrayRef<const Expr *> getLHSExprs() const {
		3723	return llvm::ArrayRef(getPrivates().end(), varlist_size());
		3724	}
		3725
		3726	/// Set list of helper expressions, required for proper codegen of the clause.
		3727	/// These expressions represent RHS expression in the final reduction
		3728	/// expression performed by the reduction clause. Also, variables in these
		3729	/// expressions are used for proper initialization of reduction copies.
		3730	void setRHSExprs(ArrayRef<Expr *> RHSExprs);
		3731
		3732	/// Get the list of helper destination expressions.
		3733	MutableArrayRef<Expr *> getRHSExprs() {
		3734	return MutableArrayRef<Expr *>(getLHSExprs().end(), varlist_size());
		3735	}
		3736	ArrayRef<const Expr *> getRHSExprs() const {
		3737	return llvm::ArrayRef(getLHSExprs().end(), varlist_size());
		3738	}
		3739
		3740	/// Set list of helper reduction expressions, required for proper
		3741	/// codegen of the clause. These expressions are binary expressions or
		3742	/// operator/custom reduction call that calculates new value from source
		3743	/// helper expressions to destination helper expressions.
		3744	void setReductionOps(ArrayRef<Expr *> ReductionOps);
		3745
		3746	/// Get the list of helper reduction expressions.
		3747	MutableArrayRef<Expr *> getReductionOps() {
		3748	return MutableArrayRef<Expr *>(getRHSExprs().end(), varlist_size());
		3749	}
		3750	ArrayRef<const Expr *> getReductionOps() const {
		3751	return llvm::ArrayRef(getRHSExprs().end(), varlist_size());
		3752	}
		3753
		3754	/// Set list of helper reduction taskgroup descriptors.
		3755	void setTaskgroupDescriptors(ArrayRef<Expr *> ReductionOps);
		3756
		3757	/// Get the list of helper reduction taskgroup descriptors.
		3758	MutableArrayRef<Expr *> getTaskgroupDescriptors() {
		3759	return MutableArrayRef<Expr *>(getReductionOps().end(), varlist_size());
		3760	}
		3761	ArrayRef<const Expr *> getTaskgroupDescriptors() const {
		3762	return llvm::ArrayRef(getReductionOps().end(), varlist_size());
		3763	}
		3764
		3765	public:
		3766	/// Creates clause with a list of variables \a VL.
		3767	///
		3768	/// \param StartLoc Starting location of the clause.
		3769	/// \param LParenLoc Location of '('.
		3770	/// \param ColonLoc Location of ':'.
		3771	/// \param EndLoc Ending location of the clause.
		3772	/// \param VL The variables in the clause.
		3773	/// \param QualifierLoc The nested-name qualifier with location information
		3774	/// \param NameInfo The full name info for reduction identifier.
		3775	/// \param Privates List of helper expressions for proper generation of
		3776	/// private copies.
		3777	/// \param LHSExprs List of helper expressions for proper generation of
		3778	/// assignment operation required for copyprivate clause. This list represents
		3779	/// LHSs of the reduction expressions.
		3780	/// \param RHSExprs List of helper expressions for proper generation of
		3781	/// assignment operation required for copyprivate clause. This list represents
		3782	/// RHSs of the reduction expressions.
		3783	/// Also, variables in these expressions are used for proper initialization of
		3784	/// reduction copies.
		3785	/// \param ReductionOps List of helper expressions that represents reduction
		3786	/// expressions:
		3787	/// \code
		3788	/// LHSExprs binop RHSExprs;
		3789	/// operator binop(LHSExpr, RHSExpr);
		3790	/// <CutomReduction>(LHSExpr, RHSExpr);
		3791	/// \endcode
		3792	/// Required for proper codegen of final reduction operation performed by the
		3793	/// reduction clause.
		3794	/// \param TaskgroupDescriptors List of helper taskgroup descriptors for
		3795	/// corresponding items in parent taskgroup task_reduction clause.
		3796	/// \param PreInit Statement that must be executed before entering the OpenMP
		3797	/// region with this clause.
		3798	/// \param PostUpdate Expression that must be executed after exit from the
		3799	/// OpenMP region with this clause.
		3800	static OMPInReductionClause *
		3801	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		3802	SourceLocation ColonLoc, SourceLocation EndLoc, ArrayRef<Expr *> VL,
		3803	NestedNameSpecifierLoc QualifierLoc,
		3804	const DeclarationNameInfo &NameInfo, ArrayRef<Expr *> Privates,
		3805	ArrayRef<Expr > LHSExprs, ArrayRef<Expr > RHSExprs,
		3806	ArrayRef<Expr > ReductionOps, ArrayRef<Expr > TaskgroupDescriptors,
		3807	Stmt PreInit, Expr PostUpdate);
		3808
		3809	/// Creates an empty clause with the place for \a N variables.
		3810	///
		3811	/// \param C AST context.
		3812	/// \param N The number of variables.
		3813	static OMPInReductionClause *CreateEmpty(const ASTContext &C, unsigned N);
		3814
		3815	/// Gets location of ':' symbol in clause.
		3816	SourceLocation getColonLoc() const { return ColonLoc; }
		3817
		3818	/// Gets the name info for specified reduction identifier.
		3819	const DeclarationNameInfo &getNameInfo() const { return NameInfo; }
		3820
		3821	/// Gets the nested name specifier.
		3822	NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
		3823
		3824	using helper_expr_iterator = MutableArrayRef<Expr *>::iterator;
		3825	using helper_expr_const_iterator = ArrayRef<const Expr *>::iterator;
		3826	using helper_expr_range = llvm::iterator_range<helper_expr_iterator>;
		3827	using helper_expr_const_range =
		3828	llvm::iterator_range<helper_expr_const_iterator>;
		3829
		3830	helper_expr_const_range privates() const {
		3831	return helper_expr_const_range(getPrivates().begin(), getPrivates().end());
		3832	}
		3833
		3834	helper_expr_range privates() {
		3835	return helper_expr_range(getPrivates().begin(), getPrivates().end());
		3836	}
		3837
		3838	helper_expr_const_range lhs_exprs() const {
		3839	return helper_expr_const_range(getLHSExprs().begin(), getLHSExprs().end());
		3840	}
		3841
		3842	helper_expr_range lhs_exprs() {
		3843	return helper_expr_range(getLHSExprs().begin(), getLHSExprs().end());
		3844	}
		3845
		3846	helper_expr_const_range rhs_exprs() const {
		3847	return helper_expr_const_range(getRHSExprs().begin(), getRHSExprs().end());
		3848	}
		3849
		3850	helper_expr_range rhs_exprs() {
		3851	return helper_expr_range(getRHSExprs().begin(), getRHSExprs().end());
		3852	}
		3853
		3854	helper_expr_const_range reduction_ops() const {
		3855	return helper_expr_const_range(getReductionOps().begin(),
		3856	getReductionOps().end());
		3857	}
		3858
		3859	helper_expr_range reduction_ops() {
		3860	return helper_expr_range(getReductionOps().begin(),
		3861	getReductionOps().end());
		3862	}
		3863
		3864	helper_expr_const_range taskgroup_descriptors() const {
		3865	return helper_expr_const_range(getTaskgroupDescriptors().begin(),
		3866	getTaskgroupDescriptors().end());
		3867	}
		3868
		3869	helper_expr_range taskgroup_descriptors() {
		3870	return helper_expr_range(getTaskgroupDescriptors().begin(),
		3871	getTaskgroupDescriptors().end());
		3872	}
		3873
		3874	child_range children() {
		3875	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		3876	reinterpret_cast<Stmt **>(varlist_end()));
		3877	}
		3878
		3879	const_child_range children() const {
		3880	auto Children = const_cast<OMPInReductionClause *>(this)->children();
		3881	return const_child_range(Children.begin(), Children.end());
		3882	}
		3883
		3884	child_range used_children() {
		3885	return child_range(child_iterator(), child_iterator());
		3886	}
		3887	const_child_range used_children() const {
		3888	return const_child_range(const_child_iterator(), const_child_iterator());
		3889	}
		3890
		3891	static bool classof(const OMPClause *T) {
		3892	return T->getClauseKind() == llvm::omp::OMPC_in_reduction;
		3893	}
		3894	};
		3895
		3896	/// This represents clause 'linear' in the '#pragma omp ...'
		3897	/// directives.
		3898	///
		3899	/// \code
		3900	/// #pragma omp simd linear(a,b : 2)
		3901	/// \endcode
		3902	/// In this example directive '#pragma omp simd' has clause 'linear'
		3903	/// with variables 'a', 'b' and linear step '2'.
		3904	class OMPLinearClause final
		3905	: public OMPVarListClause<OMPLinearClause>,
		3906	public OMPClauseWithPostUpdate,
		3907	private llvm::TrailingObjects<OMPLinearClause, Expr *> {
		3908	friend class OMPClauseReader;
		3909	friend OMPVarListClause;
		3910	friend TrailingObjects;
		3911
		3912	/// Modifier of 'linear' clause.
		3913	OpenMPLinearClauseKind Modifier = OMPC_LINEAR_val;
		3914
		3915	/// Location of linear modifier if any.
		3916	SourceLocation ModifierLoc;
		3917
		3918	/// Location of ':'.
		3919	SourceLocation ColonLoc;
		3920
		3921	/// Sets the linear step for clause.
		3922	void setStep(Expr Step) { (getFinals().end()) = Step; }
		3923
		3924	/// Sets the expression to calculate linear step for clause.
		3925	void setCalcStep(Expr CalcStep) { (getFinals().end() + 1) = CalcStep; }
		3926
		3927	/// Build 'linear' clause with given number of variables \a NumVars.
		3928	///
		3929	/// \param StartLoc Starting location of the clause.
		3930	/// \param LParenLoc Location of '('.
		3931	/// \param ColonLoc Location of ':'.
		3932	/// \param EndLoc Ending location of the clause.
		3933	/// \param NumVars Number of variables.
		3934	OMPLinearClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		3935	OpenMPLinearClauseKind Modifier, SourceLocation ModifierLoc,
		3936	SourceLocation ColonLoc, SourceLocation EndLoc,
		3937	unsigned NumVars)
		3938	: OMPVarListClause<OMPLinearClause>(llvm::omp::OMPC_linear, StartLoc,
		3939	LParenLoc, EndLoc, NumVars),
		3940	OMPClauseWithPostUpdate(this), Modifier(Modifier),
		3941	ModifierLoc(ModifierLoc), ColonLoc(ColonLoc) {}
		3942
		3943	/// Build an empty clause.
		3944	///
		3945	/// \param NumVars Number of variables.
		3946	explicit OMPLinearClause(unsigned NumVars)
		3947	: OMPVarListClause<OMPLinearClause>(llvm::omp::OMPC_linear,
		3948	SourceLocation(), SourceLocation(),
		3949	SourceLocation(), NumVars),
		3950	OMPClauseWithPostUpdate(this) {}
		3951
		3952	/// Gets the list of initial values for linear variables.
		3953	///
		3954	/// There are NumVars expressions with initial values allocated after the
		3955	/// varlist, they are followed by NumVars update expressions (used to update
		3956	/// the linear variable's value on current iteration) and they are followed by
		3957	/// NumVars final expressions (used to calculate the linear variable's
		3958	/// value after the loop body). After these lists, there are 2 helper
		3959	/// expressions - linear step and a helper to calculate it before the
		3960	/// loop body (used when the linear step is not constant):
		3961	///
		3962	/// { Vars[] /* in OMPVarListClause */; Privates[]; Inits[]; Updates[];
		3963	/// Finals[]; Step; CalcStep; }
		3964	MutableArrayRef<Expr *> getPrivates() {
		3965	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		3966	}
		3967	ArrayRef<const Expr *> getPrivates() const {
		3968	return llvm::ArrayRef(varlist_end(), varlist_size());
		3969	}
		3970
		3971	MutableArrayRef<Expr *> getInits() {
		3972	return MutableArrayRef<Expr *>(getPrivates().end(), varlist_size());
		3973	}
		3974	ArrayRef<const Expr *> getInits() const {
		3975	return llvm::ArrayRef(getPrivates().end(), varlist_size());
		3976	}
		3977
		3978	/// Sets the list of update expressions for linear variables.
		3979	MutableArrayRef<Expr *> getUpdates() {
		3980	return MutableArrayRef<Expr *>(getInits().end(), varlist_size());
		3981	}
		3982	ArrayRef<const Expr *> getUpdates() const {
		3983	return llvm::ArrayRef(getInits().end(), varlist_size());
		3984	}
		3985
		3986	/// Sets the list of final update expressions for linear variables.
		3987	MutableArrayRef<Expr *> getFinals() {
		3988	return MutableArrayRef<Expr *>(getUpdates().end(), varlist_size());
		3989	}
		3990	ArrayRef<const Expr *> getFinals() const {
		3991	return llvm::ArrayRef(getUpdates().end(), varlist_size());
		3992	}
		3993
		3994	/// Gets the list of used expressions for linear variables.
		3995	MutableArrayRef<Expr *> getUsedExprs() {
		3996	return MutableArrayRef<Expr *>(getFinals().end() + 2, varlist_size() + 1);
		3997	}
		3998	ArrayRef<const Expr *> getUsedExprs() const {
		3999	return llvm::ArrayRef(getFinals().end() + 2, varlist_size() + 1);
		4000	}
		4001
		4002	/// Sets the list of the copies of original linear variables.
		4003	/// \param PL List of expressions.
		4004	void setPrivates(ArrayRef<Expr *> PL);
		4005
		4006	/// Sets the list of the initial values for linear variables.
		4007	/// \param IL List of expressions.
		4008	void setInits(ArrayRef<Expr *> IL);
		4009
		4010	public:
		4011	/// Creates clause with a list of variables \a VL and a linear step
		4012	/// \a Step.
		4013	///
		4014	/// \param C AST Context.
		4015	/// \param StartLoc Starting location of the clause.
		4016	/// \param LParenLoc Location of '('.
		4017	/// \param Modifier Modifier of 'linear' clause.
		4018	/// \param ModifierLoc Modifier location.
		4019	/// \param ColonLoc Location of ':'.
		4020	/// \param EndLoc Ending location of the clause.
		4021	/// \param VL List of references to the variables.
		4022	/// \param PL List of private copies of original variables.
		4023	/// \param IL List of initial values for the variables.
		4024	/// \param Step Linear step.
		4025	/// \param CalcStep Calculation of the linear step.
		4026	/// \param PreInit Statement that must be executed before entering the OpenMP
		4027	/// region with this clause.
		4028	/// \param PostUpdate Expression that must be executed after exit from the
		4029	/// OpenMP region with this clause.
		4030	static OMPLinearClause *
		4031	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		4032	OpenMPLinearClauseKind Modifier, SourceLocation ModifierLoc,
		4033	SourceLocation ColonLoc, SourceLocation EndLoc, ArrayRef<Expr *> VL,
		4034	ArrayRef<Expr > PL, ArrayRef<Expr > IL, Expr Step, Expr CalcStep,
		4035	Stmt PreInit, Expr PostUpdate);
		4036
		4037	/// Creates an empty clause with the place for \a NumVars variables.
		4038	///
		4039	/// \param C AST context.
		4040	/// \param NumVars Number of variables.
		4041	static OMPLinearClause *CreateEmpty(const ASTContext &C, unsigned NumVars);
		4042
		4043	/// Set modifier.
		4044	void setModifier(OpenMPLinearClauseKind Kind) { Modifier = Kind; }
		4045
		4046	/// Return modifier.
		4047	OpenMPLinearClauseKind getModifier() const { return Modifier; }
		4048
		4049	/// Set modifier location.
		4050	void setModifierLoc(SourceLocation Loc) { ModifierLoc = Loc; }
		4051
		4052	/// Return modifier location.
		4053	SourceLocation getModifierLoc() const { return ModifierLoc; }
		4054
		4055	/// Sets the location of ':'.
		4056	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		4057
		4058	/// Returns the location of ':'.
		4059	SourceLocation getColonLoc() const { return ColonLoc; }
		4060
		4061	/// Returns linear step.
		4062	Expr getStep() { return (getFinals().end()); }
		4063
		4064	/// Returns linear step.
		4065	const Expr getStep() const { return (getFinals().end()); }
		4066
		4067	/// Returns expression to calculate linear step.
		4068	Expr getCalcStep() { return (getFinals().end() + 1); }
		4069
		4070	/// Returns expression to calculate linear step.
		4071	const Expr getCalcStep() const { return (getFinals().end() + 1); }
		4072
		4073	/// Sets the list of update expressions for linear variables.
		4074	/// \param UL List of expressions.
		4075	void setUpdates(ArrayRef<Expr *> UL);
		4076
		4077	/// Sets the list of final update expressions for linear variables.
		4078	/// \param FL List of expressions.
		4079	void setFinals(ArrayRef<Expr *> FL);
		4080
		4081	/// Sets the list of used expressions for the linear clause.
		4082	void setUsedExprs(ArrayRef<Expr *> UE);
		4083
		4084	using privates_iterator = MutableArrayRef<Expr *>::iterator;
		4085	using privates_const_iterator = ArrayRef<const Expr *>::iterator;
		4086	using privates_range = llvm::iterator_range<privates_iterator>;
		4087	using privates_const_range = llvm::iterator_range<privates_const_iterator>;
		4088
		4089	privates_range privates() {
		4090	return privates_range(getPrivates().begin(), getPrivates().end());
		4091	}
		4092
		4093	privates_const_range privates() const {
		4094	return privates_const_range(getPrivates().begin(), getPrivates().end());
		4095	}
		4096
		4097	using inits_iterator = MutableArrayRef<Expr *>::iterator;
		4098	using inits_const_iterator = ArrayRef<const Expr *>::iterator;
		4099	using inits_range = llvm::iterator_range<inits_iterator>;
		4100	using inits_const_range = llvm::iterator_range<inits_const_iterator>;
		4101
		4102	inits_range inits() {
		4103	return inits_range(getInits().begin(), getInits().end());
		4104	}
		4105
		4106	inits_const_range inits() const {
		4107	return inits_const_range(getInits().begin(), getInits().end());
		4108	}
		4109
		4110	using updates_iterator = MutableArrayRef<Expr *>::iterator;
		4111	using updates_const_iterator = ArrayRef<const Expr *>::iterator;
		4112	using updates_range = llvm::iterator_range<updates_iterator>;
		4113	using updates_const_range = llvm::iterator_range<updates_const_iterator>;
		4114
		4115	updates_range updates() {
		4116	return updates_range(getUpdates().begin(), getUpdates().end());
		4117	}
		4118
		4119	updates_const_range updates() const {
		4120	return updates_const_range(getUpdates().begin(), getUpdates().end());
		4121	}
		4122
		4123	using finals_iterator = MutableArrayRef<Expr *>::iterator;
		4124	using finals_const_iterator = ArrayRef<const Expr *>::iterator;
		4125	using finals_range = llvm::iterator_range<finals_iterator>;
		4126	using finals_const_range = llvm::iterator_range<finals_const_iterator>;
		4127
		4128	finals_range finals() {
		4129	return finals_range(getFinals().begin(), getFinals().end());
		4130	}
		4131
		4132	finals_const_range finals() const {
		4133	return finals_const_range(getFinals().begin(), getFinals().end());
		4134	}
		4135
		4136	using used_expressions_iterator = MutableArrayRef<Expr *>::iterator;
		4137	using used_expressions_const_iterator = ArrayRef<const Expr *>::iterator;
		4138	using used_expressions_range =
		4139	llvm::iterator_range<used_expressions_iterator>;
		4140	using used_expressions_const_range =
		4141	llvm::iterator_range<used_expressions_const_iterator>;
		4142
		4143	used_expressions_range used_expressions() {
		4144	return finals_range(getUsedExprs().begin(), getUsedExprs().end());
		4145	}
		4146
		4147	used_expressions_const_range used_expressions() const {
		4148	return finals_const_range(getUsedExprs().begin(), getUsedExprs().end());
		4149	}
		4150
		4151	child_range children() {
		4152	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		4153	reinterpret_cast<Stmt **>(varlist_end()));
		4154	}
		4155
		4156	const_child_range children() const {
		4157	auto Children = const_cast<OMPLinearClause *>(this)->children();
		4158	return const_child_range(Children.begin(), Children.end());
		4159	}
		4160
		4161	child_range used_children();
		4162
		4163	const_child_range used_children() const {
		4164	auto Children = const_cast<OMPLinearClause *>(this)->used_children();
		4165	return const_child_range(Children.begin(), Children.end());
		4166	}
		4167
		4168	static bool classof(const OMPClause *T) {
		4169	return T->getClauseKind() == llvm::omp::OMPC_linear;
		4170	}
		4171	};
		4172
		4173	/// This represents clause 'aligned' in the '#pragma omp ...'
		4174	/// directives.
		4175	///
		4176	/// \code
		4177	/// #pragma omp simd aligned(a,b : 8)
		4178	/// \endcode
		4179	/// In this example directive '#pragma omp simd' has clause 'aligned'
		4180	/// with variables 'a', 'b' and alignment '8'.
		4181	class OMPAlignedClause final
		4182	: public OMPVarListClause<OMPAlignedClause>,
		4183	private llvm::TrailingObjects<OMPAlignedClause, Expr *> {
		4184	friend class OMPClauseReader;
		4185	friend OMPVarListClause;
		4186	friend TrailingObjects;
		4187
		4188	/// Location of ':'.
		4189	SourceLocation ColonLoc;
		4190
		4191	/// Sets the alignment for clause.
		4192	void setAlignment(Expr A) { varlist_end() = A; }
		4193
		4194	/// Build 'aligned' clause with given number of variables \a NumVars.
		4195	///
		4196	/// \param StartLoc Starting location of the clause.
		4197	/// \param LParenLoc Location of '('.
		4198	/// \param ColonLoc Location of ':'.
		4199	/// \param EndLoc Ending location of the clause.
		4200	/// \param NumVars Number of variables.
		4201	OMPAlignedClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		4202	SourceLocation ColonLoc, SourceLocation EndLoc,
		4203	unsigned NumVars)
		4204	: OMPVarListClause<OMPAlignedClause>(llvm::omp::OMPC_aligned, StartLoc,
		4205	LParenLoc, EndLoc, NumVars),
		4206	ColonLoc(ColonLoc) {}
		4207
		4208	/// Build an empty clause.
		4209	///
		4210	/// \param NumVars Number of variables.
		4211	explicit OMPAlignedClause(unsigned NumVars)
		4212	: OMPVarListClause<OMPAlignedClause>(llvm::omp::OMPC_aligned,
		4213	SourceLocation(), SourceLocation(),
		4214	SourceLocation(), NumVars) {}
		4215
		4216	public:
		4217	/// Creates clause with a list of variables \a VL and alignment \a A.
		4218	///
		4219	/// \param C AST Context.
		4220	/// \param StartLoc Starting location of the clause.
		4221	/// \param LParenLoc Location of '('.
		4222	/// \param ColonLoc Location of ':'.
		4223	/// \param EndLoc Ending location of the clause.
		4224	/// \param VL List of references to the variables.
		4225	/// \param A Alignment.
		4226	static OMPAlignedClause *Create(const ASTContext &C, SourceLocation StartLoc,
		4227	SourceLocation LParenLoc,
		4228	SourceLocation ColonLoc,
		4229	SourceLocation EndLoc, ArrayRef<Expr *> VL,
		4230	Expr *A);
		4231
		4232	/// Creates an empty clause with the place for \a NumVars variables.
		4233	///
		4234	/// \param C AST context.
		4235	/// \param NumVars Number of variables.
		4236	static OMPAlignedClause *CreateEmpty(const ASTContext &C, unsigned NumVars);
		4237
		4238	/// Sets the location of ':'.
		4239	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		4240
		4241	/// Returns the location of ':'.
		4242	SourceLocation getColonLoc() const { return ColonLoc; }
		4243
		4244	/// Returns alignment.
		4245	Expr getAlignment() { return varlist_end(); }
		4246
		4247	/// Returns alignment.
		4248	const Expr getAlignment() const { return varlist_end(); }
		4249
		4250	child_range children() {
		4251	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		4252	reinterpret_cast<Stmt **>(varlist_end()));
		4253	}
		4254
		4255	const_child_range children() const {
		4256	auto Children = const_cast<OMPAlignedClause *>(this)->children();
		4257	return const_child_range(Children.begin(), Children.end());
		4258	}
		4259
		4260	child_range used_children() {
		4261	return child_range(child_iterator(), child_iterator());
		4262	}
		4263	const_child_range used_children() const {
		4264	return const_child_range(const_child_iterator(), const_child_iterator());
		4265	}
		4266
		4267	static bool classof(const OMPClause *T) {
		4268	return T->getClauseKind() == llvm::omp::OMPC_aligned;
		4269	}
		4270	};
		4271
		4272	/// This represents clause 'copyin' in the '#pragma omp ...' directives.
		4273	///
		4274	/// \code
		4275	/// #pragma omp parallel copyin(a,b)
		4276	/// \endcode
		4277	/// In this example directive '#pragma omp parallel' has clause 'copyin'
		4278	/// with the variables 'a' and 'b'.
		4279	class OMPCopyinClause final
		4280	: public OMPVarListClause<OMPCopyinClause>,
		4281	private llvm::TrailingObjects<OMPCopyinClause, Expr *> {
		4282	// Class has 3 additional tail allocated arrays:
		4283	// 1. List of helper expressions for proper generation of assignment operation
		4284	// required for copyin clause. This list represents sources.
		4285	// 2. List of helper expressions for proper generation of assignment operation
		4286	// required for copyin clause. This list represents destinations.
		4287	// 3. List of helper expressions that represents assignment operation:
		4288	// \code
		4289	// DstExprs = SrcExprs;
		4290	// \endcode
		4291	// Required for proper codegen of propagation of master's thread values of
		4292	// threadprivate variables to local instances of that variables in other
		4293	// implicit threads.
		4294
		4295	friend class OMPClauseReader;
		4296	friend OMPVarListClause;
		4297	friend TrailingObjects;
		4298
		4299	/// Build clause with number of variables \a N.
		4300	///
		4301	/// \param StartLoc Starting location of the clause.
		4302	/// \param LParenLoc Location of '('.
		4303	/// \param EndLoc Ending location of the clause.
		4304	/// \param N Number of the variables in the clause.
		4305	OMPCopyinClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		4306	SourceLocation EndLoc, unsigned N)
		4307	: OMPVarListClause<OMPCopyinClause>(llvm::omp::OMPC_copyin, StartLoc,
		4308	LParenLoc, EndLoc, N) {}
		4309
		4310	/// Build an empty clause.
		4311	///
		4312	/// \param N Number of variables.
		4313	explicit OMPCopyinClause(unsigned N)
		4314	: OMPVarListClause<OMPCopyinClause>(llvm::omp::OMPC_copyin,
		4315	SourceLocation(), SourceLocation(),
		4316	SourceLocation(), N) {}
		4317
		4318	/// Set list of helper expressions, required for proper codegen of the
		4319	/// clause. These expressions represent source expression in the final
		4320	/// assignment statement performed by the copyin clause.
		4321	void setSourceExprs(ArrayRef<Expr *> SrcExprs);
		4322
		4323	/// Get the list of helper source expressions.
		4324	MutableArrayRef<Expr *> getSourceExprs() {
		4325	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		4326	}
		4327	ArrayRef<const Expr *> getSourceExprs() const {
		4328	return llvm::ArrayRef(varlist_end(), varlist_size());
		4329	}
		4330
		4331	/// Set list of helper expressions, required for proper codegen of the
		4332	/// clause. These expressions represent destination expression in the final
		4333	/// assignment statement performed by the copyin clause.
		4334	void setDestinationExprs(ArrayRef<Expr *> DstExprs);
		4335
		4336	/// Get the list of helper destination expressions.
		4337	MutableArrayRef<Expr *> getDestinationExprs() {
		4338	return MutableArrayRef<Expr *>(getSourceExprs().end(), varlist_size());
		4339	}
		4340	ArrayRef<const Expr *> getDestinationExprs() const {
		4341	return llvm::ArrayRef(getSourceExprs().end(), varlist_size());
		4342	}
		4343
		4344	/// Set list of helper assignment expressions, required for proper
		4345	/// codegen of the clause. These expressions are assignment expressions that
		4346	/// assign source helper expressions to destination helper expressions
		4347	/// correspondingly.
		4348	void setAssignmentOps(ArrayRef<Expr *> AssignmentOps);
		4349
		4350	/// Get the list of helper assignment expressions.
		4351	MutableArrayRef<Expr *> getAssignmentOps() {
		4352	return MutableArrayRef<Expr *>(getDestinationExprs().end(), varlist_size());
		4353	}
		4354	ArrayRef<const Expr *> getAssignmentOps() const {
		4355	return llvm::ArrayRef(getDestinationExprs().end(), varlist_size());
		4356	}
		4357
		4358	public:
		4359	/// Creates clause with a list of variables \a VL.
		4360	///
		4361	/// \param C AST context.
		4362	/// \param StartLoc Starting location of the clause.
		4363	/// \param LParenLoc Location of '('.
		4364	/// \param EndLoc Ending location of the clause.
		4365	/// \param VL List of references to the variables.
		4366	/// \param SrcExprs List of helper expressions for proper generation of
		4367	/// assignment operation required for copyin clause. This list represents
		4368	/// sources.
		4369	/// \param DstExprs List of helper expressions for proper generation of
		4370	/// assignment operation required for copyin clause. This list represents
		4371	/// destinations.
		4372	/// \param AssignmentOps List of helper expressions that represents assignment
		4373	/// operation:
		4374	/// \code
		4375	/// DstExprs = SrcExprs;
		4376	/// \endcode
		4377	/// Required for proper codegen of propagation of master's thread values of
		4378	/// threadprivate variables to local instances of that variables in other
		4379	/// implicit threads.
		4380	static OMPCopyinClause *
		4381	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		4382	SourceLocation EndLoc, ArrayRef<Expr > VL, ArrayRef<Expr > SrcExprs,
		4383	ArrayRef<Expr > DstExprs, ArrayRef<Expr > AssignmentOps);
		4384
		4385	/// Creates an empty clause with \a N variables.
		4386	///
		4387	/// \param C AST context.
		4388	/// \param N The number of variables.
		4389	static OMPCopyinClause *CreateEmpty(const ASTContext &C, unsigned N);
		4390
		4391	using helper_expr_iterator = MutableArrayRef<Expr *>::iterator;
		4392	using helper_expr_const_iterator = ArrayRef<const Expr *>::iterator;
		4393	using helper_expr_range = llvm::iterator_range<helper_expr_iterator>;
		4394	using helper_expr_const_range =
		4395	llvm::iterator_range<helper_expr_const_iterator>;
		4396
		4397	helper_expr_const_range source_exprs() const {
		4398	return helper_expr_const_range(getSourceExprs().begin(),
		4399	getSourceExprs().end());
		4400	}
		4401
		4402	helper_expr_range source_exprs() {
		4403	return helper_expr_range(getSourceExprs().begin(), getSourceExprs().end());
		4404	}
		4405
		4406	helper_expr_const_range destination_exprs() const {
		4407	return helper_expr_const_range(getDestinationExprs().begin(),
		4408	getDestinationExprs().end());
		4409	}
		4410
		4411	helper_expr_range destination_exprs() {
		4412	return helper_expr_range(getDestinationExprs().begin(),
		4413	getDestinationExprs().end());
		4414	}
		4415
		4416	helper_expr_const_range assignment_ops() const {
		4417	return helper_expr_const_range(getAssignmentOps().begin(),
		4418	getAssignmentOps().end());
		4419	}
		4420
		4421	helper_expr_range assignment_ops() {
		4422	return helper_expr_range(getAssignmentOps().begin(),
		4423	getAssignmentOps().end());
		4424	}
		4425
		4426	child_range children() {
		4427	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		4428	reinterpret_cast<Stmt **>(varlist_end()));
		4429	}
		4430
		4431	const_child_range children() const {
		4432	auto Children = const_cast<OMPCopyinClause *>(this)->children();
		4433	return const_child_range(Children.begin(), Children.end());
		4434	}
		4435
		4436	child_range used_children() {
		4437	return child_range(child_iterator(), child_iterator());
		4438	}
		4439	const_child_range used_children() const {
		4440	return const_child_range(const_child_iterator(), const_child_iterator());
		4441	}
		4442
		4443	static bool classof(const OMPClause *T) {
		4444	return T->getClauseKind() == llvm::omp::OMPC_copyin;
		4445	}
		4446	};
		4447
		4448	/// This represents clause 'copyprivate' in the '#pragma omp ...'
		4449	/// directives.
		4450	///
		4451	/// \code
		4452	/// #pragma omp single copyprivate(a,b)
		4453	/// \endcode
		4454	/// In this example directive '#pragma omp single' has clause 'copyprivate'
		4455	/// with the variables 'a' and 'b'.
		4456	class OMPCopyprivateClause final
		4457	: public OMPVarListClause<OMPCopyprivateClause>,
		4458	private llvm::TrailingObjects<OMPCopyprivateClause, Expr *> {
		4459	friend class OMPClauseReader;
		4460	friend OMPVarListClause;
		4461	friend TrailingObjects;
		4462
		4463	/// Build clause with number of variables \a N.
		4464	///
		4465	/// \param StartLoc Starting location of the clause.
		4466	/// \param LParenLoc Location of '('.
		4467	/// \param EndLoc Ending location of the clause.
		4468	/// \param N Number of the variables in the clause.
		4469	OMPCopyprivateClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		4470	SourceLocation EndLoc, unsigned N)
		4471	: OMPVarListClause<OMPCopyprivateClause>(llvm::omp::OMPC_copyprivate,
		4472	StartLoc, LParenLoc, EndLoc, N) {
		4473	}
		4474
		4475	/// Build an empty clause.
		4476	///
		4477	/// \param N Number of variables.
		4478	explicit OMPCopyprivateClause(unsigned N)
		4479	: OMPVarListClause<OMPCopyprivateClause>(
		4480	llvm::omp::OMPC_copyprivate, SourceLocation(), SourceLocation(),
		4481	SourceLocation(), N) {}
		4482
		4483	/// Set list of helper expressions, required for proper codegen of the
		4484	/// clause. These expressions represent source expression in the final
		4485	/// assignment statement performed by the copyprivate clause.
		4486	void setSourceExprs(ArrayRef<Expr *> SrcExprs);
		4487
		4488	/// Get the list of helper source expressions.
		4489	MutableArrayRef<Expr *> getSourceExprs() {
		4490	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		4491	}
		4492	ArrayRef<const Expr *> getSourceExprs() const {
		4493	return llvm::ArrayRef(varlist_end(), varlist_size());
		4494	}
		4495
		4496	/// Set list of helper expressions, required for proper codegen of the
		4497	/// clause. These expressions represent destination expression in the final
		4498	/// assignment statement performed by the copyprivate clause.
		4499	void setDestinationExprs(ArrayRef<Expr *> DstExprs);
		4500
		4501	/// Get the list of helper destination expressions.
		4502	MutableArrayRef<Expr *> getDestinationExprs() {
		4503	return MutableArrayRef<Expr *>(getSourceExprs().end(), varlist_size());
		4504	}
		4505	ArrayRef<const Expr *> getDestinationExprs() const {
		4506	return llvm::ArrayRef(getSourceExprs().end(), varlist_size());
		4507	}
		4508
		4509	/// Set list of helper assignment expressions, required for proper
		4510	/// codegen of the clause. These expressions are assignment expressions that
		4511	/// assign source helper expressions to destination helper expressions
		4512	/// correspondingly.
		4513	void setAssignmentOps(ArrayRef<Expr *> AssignmentOps);
		4514
		4515	/// Get the list of helper assignment expressions.
		4516	MutableArrayRef<Expr *> getAssignmentOps() {
		4517	return MutableArrayRef<Expr *>(getDestinationExprs().end(), varlist_size());
		4518	}
		4519	ArrayRef<const Expr *> getAssignmentOps() const {
		4520	return llvm::ArrayRef(getDestinationExprs().end(), varlist_size());
		4521	}
		4522
		4523	public:
		4524	/// Creates clause with a list of variables \a VL.
		4525	///
		4526	/// \param C AST context.
		4527	/// \param StartLoc Starting location of the clause.
		4528	/// \param LParenLoc Location of '('.
		4529	/// \param EndLoc Ending location of the clause.
		4530	/// \param VL List of references to the variables.
		4531	/// \param SrcExprs List of helper expressions for proper generation of
		4532	/// assignment operation required for copyprivate clause. This list represents
		4533	/// sources.
		4534	/// \param DstExprs List of helper expressions for proper generation of
		4535	/// assignment operation required for copyprivate clause. This list represents
		4536	/// destinations.
		4537	/// \param AssignmentOps List of helper expressions that represents assignment
		4538	/// operation:
		4539	/// \code
		4540	/// DstExprs = SrcExprs;
		4541	/// \endcode
		4542	/// Required for proper codegen of final assignment performed by the
		4543	/// copyprivate clause.
		4544	static OMPCopyprivateClause *
		4545	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		4546	SourceLocation EndLoc, ArrayRef<Expr > VL, ArrayRef<Expr > SrcExprs,
		4547	ArrayRef<Expr > DstExprs, ArrayRef<Expr > AssignmentOps);
		4548
		4549	/// Creates an empty clause with \a N variables.
		4550	///
		4551	/// \param C AST context.
		4552	/// \param N The number of variables.
		4553	static OMPCopyprivateClause *CreateEmpty(const ASTContext &C, unsigned N);
		4554
		4555	using helper_expr_iterator = MutableArrayRef<Expr *>::iterator;
		4556	using helper_expr_const_iterator = ArrayRef<const Expr *>::iterator;
		4557	using helper_expr_range = llvm::iterator_range<helper_expr_iterator>;
		4558	using helper_expr_const_range =
		4559	llvm::iterator_range<helper_expr_const_iterator>;
		4560
		4561	helper_expr_const_range source_exprs() const {
		4562	return helper_expr_const_range(getSourceExprs().begin(),
		4563	getSourceExprs().end());
		4564	}
		4565
		4566	helper_expr_range source_exprs() {
		4567	return helper_expr_range(getSourceExprs().begin(), getSourceExprs().end());
		4568	}
		4569
		4570	helper_expr_const_range destination_exprs() const {
		4571	return helper_expr_const_range(getDestinationExprs().begin(),
		4572	getDestinationExprs().end());
		4573	}
		4574
		4575	helper_expr_range destination_exprs() {
		4576	return helper_expr_range(getDestinationExprs().begin(),
		4577	getDestinationExprs().end());
		4578	}
		4579
		4580	helper_expr_const_range assignment_ops() const {
		4581	return helper_expr_const_range(getAssignmentOps().begin(),
		4582	getAssignmentOps().end());
		4583	}
		4584
		4585	helper_expr_range assignment_ops() {
		4586	return helper_expr_range(getAssignmentOps().begin(),
		4587	getAssignmentOps().end());
		4588	}
		4589
		4590	child_range children() {
		4591	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		4592	reinterpret_cast<Stmt **>(varlist_end()));
		4593	}
		4594
		4595	const_child_range children() const {
		4596	auto Children = const_cast<OMPCopyprivateClause *>(this)->children();
		4597	return const_child_range(Children.begin(), Children.end());
		4598	}
		4599
		4600	child_range used_children() {
		4601	return child_range(child_iterator(), child_iterator());
		4602	}
		4603	const_child_range used_children() const {
		4604	return const_child_range(const_child_iterator(), const_child_iterator());
		4605	}
		4606
		4607	static bool classof(const OMPClause *T) {
		4608	return T->getClauseKind() == llvm::omp::OMPC_copyprivate;
		4609	}
		4610	};
		4611
		4612	/// This represents implicit clause 'flush' for the '#pragma omp flush'
		4613	/// directive.
		4614	/// This clause does not exist by itself, it can be only as a part of 'omp
		4615	/// flush' directive. This clause is introduced to keep the original structure
		4616	/// of \a OMPExecutableDirective class and its derivatives and to use the
		4617	/// existing infrastructure of clauses with the list of variables.
		4618	///
		4619	/// \code
		4620	/// #pragma omp flush(a,b)
		4621	/// \endcode
		4622	/// In this example directive '#pragma omp flush' has implicit clause 'flush'
		4623	/// with the variables 'a' and 'b'.
		4624	class OMPFlushClause final
		4625	: public OMPVarListClause<OMPFlushClause>,
		4626	private llvm::TrailingObjects<OMPFlushClause, Expr *> {
		4627	friend OMPVarListClause;
		4628	friend TrailingObjects;
		4629
		4630	/// Build clause with number of variables \a N.
		4631	///
		4632	/// \param StartLoc Starting location of the clause.
		4633	/// \param LParenLoc Location of '('.
		4634	/// \param EndLoc Ending location of the clause.
		4635	/// \param N Number of the variables in the clause.
		4636	OMPFlushClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		4637	SourceLocation EndLoc, unsigned N)
		4638	: OMPVarListClause<OMPFlushClause>(llvm::omp::OMPC_flush, StartLoc,
		4639	LParenLoc, EndLoc, N) {}
		4640
		4641	/// Build an empty clause.
		4642	///
		4643	/// \param N Number of variables.
		4644	explicit OMPFlushClause(unsigned N)
		4645	: OMPVarListClause<OMPFlushClause>(llvm::omp::OMPC_flush,
		4646	SourceLocation(), SourceLocation(),
		4647	SourceLocation(), N) {}
		4648
		4649	public:
		4650	/// Creates clause with a list of variables \a VL.
		4651	///
		4652	/// \param C AST context.
		4653	/// \param StartLoc Starting location of the clause.
		4654	/// \param LParenLoc Location of '('.
		4655	/// \param EndLoc Ending location of the clause.
		4656	/// \param VL List of references to the variables.
		4657	static OMPFlushClause *Create(const ASTContext &C, SourceLocation StartLoc,
		4658	SourceLocation LParenLoc, SourceLocation EndLoc,
		4659	ArrayRef<Expr *> VL);
		4660
		4661	/// Creates an empty clause with \a N variables.
		4662	///
		4663	/// \param C AST context.
		4664	/// \param N The number of variables.
		4665	static OMPFlushClause *CreateEmpty(const ASTContext &C, unsigned N);
		4666
		4667	child_range children() {
		4668	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		4669	reinterpret_cast<Stmt **>(varlist_end()));
		4670	}
		4671
		4672	const_child_range children() const {
		4673	auto Children = const_cast<OMPFlushClause *>(this)->children();
		4674	return const_child_range(Children.begin(), Children.end());
		4675	}
		4676
		4677	child_range used_children() {
		4678	return child_range(child_iterator(), child_iterator());
		4679	}
		4680	const_child_range used_children() const {
		4681	return const_child_range(const_child_iterator(), const_child_iterator());
		4682	}
		4683
		4684	static bool classof(const OMPClause *T) {
		4685	return T->getClauseKind() == llvm::omp::OMPC_flush;
		4686	}
		4687	};
		4688
		4689	/// This represents implicit clause 'depobj' for the '#pragma omp depobj'
		4690	/// directive.
		4691	/// This clause does not exist by itself, it can be only as a part of 'omp
		4692	/// depobj' directive. This clause is introduced to keep the original structure
		4693	/// of \a OMPExecutableDirective class and its derivatives and to use the
		4694	/// existing infrastructure of clauses with the list of variables.
		4695	///
		4696	/// \code
		4697	/// #pragma omp depobj(a) destroy
		4698	/// \endcode
		4699	/// In this example directive '#pragma omp depobj' has implicit clause 'depobj'
		4700	/// with the depobj 'a'.
		4701	class OMPDepobjClause final : public OMPClause {
		4702	friend class OMPClauseReader;
		4703
		4704	/// Location of '('.
		4705	SourceLocation LParenLoc;
		4706
		4707	/// Chunk size.
		4708	Expr *Depobj = nullptr;
		4709
		4710	/// Build clause with number of variables \a N.
		4711	///
		4712	/// \param StartLoc Starting location of the clause.
		4713	/// \param LParenLoc Location of '('.
		4714	/// \param EndLoc Ending location of the clause.
		4715	OMPDepobjClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		4716	SourceLocation EndLoc)
		4717	: OMPClause(llvm::omp::OMPC_depobj, StartLoc, EndLoc),
		4718	LParenLoc(LParenLoc) {}
		4719
		4720	/// Build an empty clause.
		4721	///
		4722	explicit OMPDepobjClause()
		4723	: OMPClause(llvm::omp::OMPC_depobj, SourceLocation(), SourceLocation()) {}
		4724
		4725	void setDepobj(Expr *E) { Depobj = E; }
		4726
		4727	/// Sets the location of '('.
		4728	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		4729
		4730	public:
		4731	/// Creates clause.
		4732	///
		4733	/// \param C AST context.
		4734	/// \param StartLoc Starting location of the clause.
		4735	/// \param LParenLoc Location of '('.
		4736	/// \param EndLoc Ending location of the clause.
		4737	/// \param Depobj depobj expression associated with the 'depobj' directive.
		4738	static OMPDepobjClause *Create(const ASTContext &C, SourceLocation StartLoc,
		4739	SourceLocation LParenLoc,
		4740	SourceLocation EndLoc, Expr *Depobj);
		4741
		4742	/// Creates an empty clause.
		4743	///
		4744	/// \param C AST context.
		4745	static OMPDepobjClause *CreateEmpty(const ASTContext &C);
		4746
		4747	/// Returns depobj expression associated with the clause.
		4748	Expr *getDepobj() { return Depobj; }
		4749	const Expr *getDepobj() const { return Depobj; }
		4750
		4751	/// Returns the location of '('.
		4752	SourceLocation getLParenLoc() const { return LParenLoc; }
		4753
		4754	child_range children() {
		4755	return child_range(reinterpret_cast<Stmt **>(&Depobj),
		4756	reinterpret_cast<Stmt **>(&Depobj) + 1);
		4757	}
		4758
		4759	const_child_range children() const {
		4760	auto Children = const_cast<OMPDepobjClause *>(this)->children();
		4761	return const_child_range(Children.begin(), Children.end());
		4762	}
		4763
		4764	child_range used_children() {
		4765	return child_range(child_iterator(), child_iterator());
		4766	}
		4767	const_child_range used_children() const {
		4768	return const_child_range(const_child_iterator(), const_child_iterator());
		4769	}
		4770
		4771	static bool classof(const OMPClause *T) {
		4772	return T->getClauseKind() == llvm::omp::OMPC_depobj;
		4773	}
		4774	};
		4775
		4776	/// This represents implicit clause 'depend' for the '#pragma omp task'
		4777	/// directive.
		4778	///
		4779	/// \code
		4780	/// #pragma omp task depend(in:a,b)
		4781	/// \endcode
		4782	/// In this example directive '#pragma omp task' with clause 'depend' with the
		4783	/// variables 'a' and 'b' with dependency 'in'.
		4784	class OMPDependClause final
		4785	: public OMPVarListClause<OMPDependClause>,
		4786	private llvm::TrailingObjects<OMPDependClause, Expr *> {
		4787	friend class OMPClauseReader;
		4788	friend OMPVarListClause;
		4789	friend TrailingObjects;
		4790
		4791	public:
		4792	struct DependDataTy final {
		4793	/// Dependency type (one of in, out, inout).
		4794	OpenMPDependClauseKind DepKind = OMPC_DEPEND_unknown;
		4795
		4796	/// Dependency type location.
		4797	SourceLocation DepLoc;
		4798
		4799	/// Colon location.
		4800	SourceLocation ColonLoc;
		4801
		4802	/// Location of 'omp_all_memory'.
		4803	SourceLocation OmpAllMemoryLoc;
		4804	};
		4805
		4806	private:
		4807	/// Dependency type and source locations.
		4808	DependDataTy Data;
		4809
		4810	/// Number of loops, associated with the depend clause.
		4811	unsigned NumLoops = 0;
		4812
		4813	/// Build clause with number of variables \a N.
		4814	///
		4815	/// \param StartLoc Starting location of the clause.
		4816	/// \param LParenLoc Location of '('.
		4817	/// \param EndLoc Ending location of the clause.
		4818	/// \param N Number of the variables in the clause.
		4819	/// \param NumLoops Number of loops that is associated with this depend
		4820	/// clause.
		4821	OMPDependClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		4822	SourceLocation EndLoc, unsigned N, unsigned NumLoops)
		4823	: OMPVarListClause<OMPDependClause>(llvm::omp::OMPC_depend, StartLoc,
		4824	LParenLoc, EndLoc, N),
		4825	NumLoops(NumLoops) {}
		4826
		4827	/// Build an empty clause.
		4828	///
		4829	/// \param N Number of variables.
		4830	/// \param NumLoops Number of loops that is associated with this depend
		4831	/// clause.
		4832	explicit OMPDependClause(unsigned N, unsigned NumLoops)
		4833	: OMPVarListClause<OMPDependClause>(llvm::omp::OMPC_depend,
		4834	SourceLocation(), SourceLocation(),
		4835	SourceLocation(), N),
		4836	NumLoops(NumLoops) {}
		4837
		4838	/// Set dependency kind.
		4839	void setDependencyKind(OpenMPDependClauseKind K) { Data.DepKind = K; }
		4840
		4841	/// Set dependency kind and its location.
		4842	void setDependencyLoc(SourceLocation Loc) { Data.DepLoc = Loc; }
		4843
		4844	/// Set colon location.
		4845	void setColonLoc(SourceLocation Loc) { Data.ColonLoc = Loc; }
		4846
		4847	/// Set the 'omp_all_memory' location.
		4848	void setOmpAllMemoryLoc(SourceLocation Loc) { Data.OmpAllMemoryLoc = Loc; }
		4849
		4850	/// Sets optional dependency modifier.
		4851	void setModifier(Expr *DepModifier);
		4852
		4853	public:
		4854	/// Creates clause with a list of variables \a VL.
		4855	///
		4856	/// \param C AST context.
		4857	/// \param StartLoc Starting location of the clause.
		4858	/// \param LParenLoc Location of '('.
		4859	/// \param EndLoc Ending location of the clause.
		4860	/// \param Data Dependency type and source locations.
		4861	/// \param VL List of references to the variables.
		4862	/// \param NumLoops Number of loops that is associated with this depend
		4863	/// clause.
		4864	static OMPDependClause *Create(const ASTContext &C, SourceLocation StartLoc,
		4865	SourceLocation LParenLoc,
		4866	SourceLocation EndLoc, DependDataTy Data,
		4867	Expr DepModifier, ArrayRef<Expr > VL,
		4868	unsigned NumLoops);
		4869
		4870	/// Creates an empty clause with \a N variables.
		4871	///
		4872	/// \param C AST context.
		4873	/// \param N The number of variables.
		4874	/// \param NumLoops Number of loops that is associated with this depend
		4875	/// clause.
		4876	static OMPDependClause *CreateEmpty(const ASTContext &C, unsigned N,
		4877	unsigned NumLoops);
		4878
		4879	/// Get dependency type.
		4880	OpenMPDependClauseKind getDependencyKind() const { return Data.DepKind; }
		4881
		4882	/// Get dependency type location.
		4883	SourceLocation getDependencyLoc() const { return Data.DepLoc; }
		4884
		4885	/// Get colon location.
		4886	SourceLocation getColonLoc() const { return Data.ColonLoc; }
		4887
		4888	/// Get 'omp_all_memory' location.
		4889	SourceLocation getOmpAllMemoryLoc() const { return Data.OmpAllMemoryLoc; }
		4890
		4891	/// Return optional depend modifier.
		4892	Expr *getModifier();
		4893	const Expr *getModifier() const {
		4894	return const_cast<OMPDependClause *>(this)->getModifier();
		4895	}
		4896
		4897	/// Get number of loops associated with the clause.
		4898	unsigned getNumLoops() const { return NumLoops; }
		4899
		4900	/// Set the loop data for the depend clauses with 'sink\|source' kind of
		4901	/// dependency.
		4902	void setLoopData(unsigned NumLoop, Expr *Cnt);
		4903
		4904	/// Get the loop data.
		4905	Expr *getLoopData(unsigned NumLoop);
		4906	const Expr *getLoopData(unsigned NumLoop) const;
		4907
		4908	child_range children() {
		4909	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		4910	reinterpret_cast<Stmt **>(varlist_end()));
		4911	}
		4912
		4913	const_child_range children() const {
		4914	auto Children = const_cast<OMPDependClause *>(this)->children();
		4915	return const_child_range(Children.begin(), Children.end());
		4916	}
		4917
		4918	child_range used_children() {
		4919	return child_range(child_iterator(), child_iterator());
		4920	}
		4921	const_child_range used_children() const {
		4922	return const_child_range(const_child_iterator(), const_child_iterator());
		4923	}
		4924
		4925	static bool classof(const OMPClause *T) {
		4926	return T->getClauseKind() == llvm::omp::OMPC_depend;
		4927	}
		4928	};
		4929
		4930	/// This represents 'device' clause in the '#pragma omp ...'
		4931	/// directive.
		4932	///
		4933	/// \code
		4934	/// #pragma omp target device(a)
		4935	/// \endcode
		4936	/// In this example directive '#pragma omp target' has clause 'device'
		4937	/// with single expression 'a'.
		4938	class OMPDeviceClause : public OMPClause, public OMPClauseWithPreInit {
		4939	friend class OMPClauseReader;
		4940
		4941	/// Location of '('.
		4942	SourceLocation LParenLoc;
		4943
		4944	/// Device clause modifier.
		4945	OpenMPDeviceClauseModifier Modifier = OMPC_DEVICE_unknown;
		4946
		4947	/// Location of the modifier.
		4948	SourceLocation ModifierLoc;
		4949
		4950	/// Device number.
		4951	Stmt *Device = nullptr;
		4952
		4953	/// Set the device number.
		4954	///
		4955	/// \param E Device number.
		4956	void setDevice(Expr *E) { Device = E; }
		4957
		4958	/// Sets modifier.
		4959	void setModifier(OpenMPDeviceClauseModifier M) { Modifier = M; }
		4960
		4961	/// Setst modifier location.
		4962	void setModifierLoc(SourceLocation Loc) { ModifierLoc = Loc; }
		4963
		4964	public:
		4965	/// Build 'device' clause.
		4966	///
		4967	/// \param Modifier Clause modifier.
		4968	/// \param E Expression associated with this clause.
		4969	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		4970	/// clause must be captured.
		4971	/// \param StartLoc Starting location of the clause.
		4972	/// \param ModifierLoc Modifier location.
		4973	/// \param LParenLoc Location of '('.
		4974	/// \param EndLoc Ending location of the clause.
		4975	OMPDeviceClause(OpenMPDeviceClauseModifier Modifier, Expr E, Stmt HelperE,
		4976	OpenMPDirectiveKind CaptureRegion, SourceLocation StartLoc,
		4977	SourceLocation LParenLoc, SourceLocation ModifierLoc,
		4978	SourceLocation EndLoc)
		4979	: OMPClause(llvm::omp::OMPC_device, StartLoc, EndLoc),
		4980	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Modifier(Modifier),
		4981	ModifierLoc(ModifierLoc), Device(E) {
		4982	setPreInitStmt(HelperE, CaptureRegion);
		4983	}
		4984
		4985	/// Build an empty clause.
		4986	OMPDeviceClause()
		4987	: OMPClause(llvm::omp::OMPC_device, SourceLocation(), SourceLocation()),
		4988	OMPClauseWithPreInit(this) {}
		4989
		4990	/// Sets the location of '('.
		4991	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		4992
		4993	/// Returns the location of '('.
		4994	SourceLocation getLParenLoc() const { return LParenLoc; }
		4995
		4996	/// Return device number.
		4997	Expr *getDevice() { return cast<Expr>(Device); }
		4998
		4999	/// Return device number.
		5000	Expr *getDevice() const { return cast<Expr>(Device); }
		5001
		5002	/// Gets modifier.
		5003	OpenMPDeviceClauseModifier getModifier() const { return Modifier; }
		5004
		5005	/// Gets modifier location.
		5006	SourceLocation getModifierLoc() const { return ModifierLoc; }
		5007
		5008	child_range children() { return child_range(&Device, &Device + 1); }
		5009
		5010	const_child_range children() const {
		5011	return const_child_range(&Device, &Device + 1);
		5012	}
		5013
		5014	child_range used_children() {
		5015	return child_range(child_iterator(), child_iterator());
		5016	}
		5017	const_child_range used_children() const {
		5018	return const_child_range(const_child_iterator(), const_child_iterator());
		5019	}
		5020
		5021	static bool classof(const OMPClause *T) {
		5022	return T->getClauseKind() == llvm::omp::OMPC_device;
		5023	}
		5024	};
		5025
		5026	/// This represents 'threads' clause in the '#pragma omp ...' directive.
		5027	///
		5028	/// \code
		5029	/// #pragma omp ordered threads
		5030	/// \endcode
		5031	/// In this example directive '#pragma omp ordered' has simple 'threads' clause.
		5032	class OMPThreadsClause final
		5033	: public OMPNoChildClause<llvm::omp::OMPC_threads> {
		5034	public:
		5035	/// Build 'threads' clause.
		5036	///
		5037	/// \param StartLoc Starting location of the clause.
		5038	/// \param EndLoc Ending location of the clause.
		5039	OMPThreadsClause(SourceLocation StartLoc, SourceLocation EndLoc)
		5040	: OMPNoChildClause(StartLoc, EndLoc) {}
		5041
		5042	/// Build an empty clause.
		5043	OMPThreadsClause() : OMPNoChildClause() {}
		5044	};
		5045
		5046	/// This represents 'simd' clause in the '#pragma omp ...' directive.
		5047	///
		5048	/// \code
		5049	/// #pragma omp ordered simd
		5050	/// \endcode
		5051	/// In this example directive '#pragma omp ordered' has simple 'simd' clause.
		5052	class OMPSIMDClause : public OMPClause {
		5053	public:
		5054	/// Build 'simd' clause.
		5055	///
		5056	/// \param StartLoc Starting location of the clause.
		5057	/// \param EndLoc Ending location of the clause.
		5058	OMPSIMDClause(SourceLocation StartLoc, SourceLocation EndLoc)
		5059	: OMPClause(llvm::omp::OMPC_simd, StartLoc, EndLoc) {}
		5060
		5061	/// Build an empty clause.
		5062	OMPSIMDClause()
		5063	: OMPClause(llvm::omp::OMPC_simd, SourceLocation(), SourceLocation()) {}
		5064
		5065	child_range children() {
		5066	return child_range(child_iterator(), child_iterator());
		5067	}
		5068
		5069	const_child_range children() const {
		5070	return const_child_range(const_child_iterator(), const_child_iterator());
		5071	}
		5072
		5073	child_range used_children() {
		5074	return child_range(child_iterator(), child_iterator());
		5075	}
		5076	const_child_range used_children() const {
		5077	return const_child_range(const_child_iterator(), const_child_iterator());
		5078	}
		5079
		5080	static bool classof(const OMPClause *T) {
		5081	return T->getClauseKind() == llvm::omp::OMPC_simd;
		5082	}
		5083	};
		5084
		5085	/// Struct that defines common infrastructure to handle mappable
		5086	/// expressions used in OpenMP clauses.
		5087	class OMPClauseMappableExprCommon {
		5088	public:
		5089	/// Class that represents a component of a mappable expression. E.g.
		5090	/// for an expression S.a, the first component is a declaration reference
		5091	/// expression associated with 'S' and the second is a member expression
		5092	/// associated with the field declaration 'a'. If the expression is an array
		5093	/// subscript it may not have any associated declaration. In that case the
		5094	/// associated declaration is set to nullptr.
		5095	class MappableComponent {
		5096	/// Pair of Expression and Non-contiguous pair associated with the
		5097	/// component.
		5098	llvm::PointerIntPair<Expr *, 1, bool> AssociatedExpressionNonContiguousPr;
		5099
		5100	/// Declaration associated with the declaration. If the component does
		5101	/// not have a declaration (e.g. array subscripts or section), this is set
		5102	/// to nullptr.
		5103	ValueDecl *AssociatedDeclaration = nullptr;
		5104
		5105	public:
		5106	explicit MappableComponent() = default;
		5107	explicit MappableComponent(Expr *AssociatedExpression,
		5108	ValueDecl *AssociatedDeclaration,
		5109	bool IsNonContiguous)
		5110	: AssociatedExpressionNonContiguousPr(AssociatedExpression,
		5111	IsNonContiguous),
		5112	AssociatedDeclaration(
		5113	AssociatedDeclaration
		5114	? cast<ValueDecl>(AssociatedDeclaration->getCanonicalDecl())
		5115	: nullptr) {}
		5116
		5117	Expr *getAssociatedExpression() const {
		5118	return AssociatedExpressionNonContiguousPr.getPointer();
		5119	}
		5120
		5121	bool isNonContiguous() const {
		5122	return AssociatedExpressionNonContiguousPr.getInt();
		5123	}
		5124
		5125	ValueDecl *getAssociatedDeclaration() const {
		5126	return AssociatedDeclaration;
		5127	}
		5128	};
		5129
		5130	// List of components of an expression. This first one is the whole
		5131	// expression and the last one is the base expression.
		5132	using MappableExprComponentList = SmallVector<MappableComponent, 8>;
		5133	using MappableExprComponentListRef = ArrayRef<MappableComponent>;
		5134
		5135	// List of all component lists associated to the same base declaration.
		5136	// E.g. if both 'S.a' and 'S.b' are a mappable expressions, each will have
		5137	// their component list but the same base declaration 'S'.
		5138	using MappableExprComponentLists = SmallVector<MappableExprComponentList, 8>;
		5139	using MappableExprComponentListsRef = ArrayRef<MappableExprComponentList>;
		5140
		5141	protected:
		5142	// Return the total number of elements in a list of component lists.
		5143	static unsigned
		5144	getComponentsTotalNumber(MappableExprComponentListsRef ComponentLists);
		5145
		5146	// Return the total number of elements in a list of declarations. All
		5147	// declarations are expected to be canonical.
		5148	static unsigned
		5149	getUniqueDeclarationsTotalNumber(ArrayRef<const ValueDecl *> Declarations);
		5150	};
		5151
		5152	/// This structure contains all sizes needed for by an
		5153	/// OMPMappableExprListClause.
		5154	struct OMPMappableExprListSizeTy {
		5155	/// Number of expressions listed.
		5156	unsigned NumVars;
		5157	/// Number of unique base declarations.
		5158	unsigned NumUniqueDeclarations;
		5159	/// Number of component lists.
		5160	unsigned NumComponentLists;
		5161	/// Total number of expression components.
		5162	unsigned NumComponents;
		5163	OMPMappableExprListSizeTy() = default;
		5164	OMPMappableExprListSizeTy(unsigned NumVars, unsigned NumUniqueDeclarations,
		5165	unsigned NumComponentLists, unsigned NumComponents)
		5166	: NumVars(NumVars), NumUniqueDeclarations(NumUniqueDeclarations),
		5167	NumComponentLists(NumComponentLists), NumComponents(NumComponents) {}
		5168	};
		5169
		5170	/// This represents clauses with a list of expressions that are mappable.
		5171	/// Examples of these clauses are 'map' in
		5172	/// '#pragma omp target [enter\|exit] [data]...' directives, and 'to' and 'from
		5173	/// in '#pragma omp target update...' directives.
		5174	template <class T>
		5175	class OMPMappableExprListClause : public OMPVarListClause<T>,
		5176	public OMPClauseMappableExprCommon {
		5177	friend class OMPClauseReader;
		5178
		5179	/// Number of unique declarations in this clause.
		5180	unsigned NumUniqueDeclarations;
		5181
		5182	/// Number of component lists in this clause.
		5183	unsigned NumComponentLists;
		5184
		5185	/// Total number of components in this clause.
		5186	unsigned NumComponents;
		5187
		5188	/// Whether this clause is possible to have user-defined mappers associated.
		5189	/// It should be true for map, to, and from clauses, and false for
		5190	/// use_device_ptr and is_device_ptr.
		5191	const bool SupportsMapper;
		5192
		5193	/// C++ nested name specifier for the associated user-defined mapper.
		5194	NestedNameSpecifierLoc MapperQualifierLoc;
		5195
		5196	/// The associated user-defined mapper identifier information.
		5197	DeclarationNameInfo MapperIdInfo;
		5198
		5199	protected:
		5200	/// Build a clause for \a NumUniqueDeclarations declarations, \a
		5201	/// NumComponentLists total component lists, and \a NumComponents total
		5202	/// components.
		5203	///
		5204	/// \param K Kind of the clause.
		5205	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		5206	/// StartLoc: starting location of the clause (the clause keyword); 2)
		5207	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		5208	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		5209	/// NumVars: number of expressions listed in this clause; 2)
		5210	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		5211	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		5212	/// NumComponents: total number of expression components in the clause.
		5213	/// \param SupportsMapper Indicates whether this clause is possible to have
		5214	/// user-defined mappers associated.
		5215	/// \param MapperQualifierLocPtr C++ nested name specifier for the associated
		5216	/// user-defined mapper.
		5217	/// \param MapperIdInfoPtr The identifier of associated user-defined mapper.
		5218	OMPMappableExprListClause(
		5219	OpenMPClauseKind K, const OMPVarListLocTy &Locs,
		5220	const OMPMappableExprListSizeTy &Sizes, bool SupportsMapper = false,
		5221	NestedNameSpecifierLoc *MapperQualifierLocPtr = nullptr,
		5222	DeclarationNameInfo *MapperIdInfoPtr = nullptr)
		5223	: OMPVarListClause<T>(K, Locs.StartLoc, Locs.LParenLoc, Locs.EndLoc,
		5224	Sizes.NumVars),
		5225	NumUniqueDeclarations(Sizes.NumUniqueDeclarations),
		5226	NumComponentLists(Sizes.NumComponentLists),
		5227	NumComponents(Sizes.NumComponents), SupportsMapper(SupportsMapper) {
		5228	if (MapperQualifierLocPtr)
		5229	MapperQualifierLoc = *MapperQualifierLocPtr;
		5230	if (MapperIdInfoPtr)
		5231	MapperIdInfo = *MapperIdInfoPtr;
		5232	}
		5233
		5234	/// Get the unique declarations that are in the trailing objects of the
		5235	/// class.
		5236	MutableArrayRef<ValueDecl *> getUniqueDeclsRef() {
		5237	return MutableArrayRef<ValueDecl *>(
		5238	static_cast<T >(this)->template getTrailingObjects<ValueDecl >(),
		5239	NumUniqueDeclarations);
		5240	}
		5241
		5242	/// Get the unique declarations that are in the trailing objects of the
		5243	/// class.
		5244	ArrayRef<ValueDecl *> getUniqueDeclsRef() const {
		5245	return ArrayRef<ValueDecl *>(
		5246	static_cast<const T *>(this)
		5247	->template getTrailingObjects<ValueDecl *>(),
		5248	NumUniqueDeclarations);
		5249	}
		5250
		5251	/// Set the unique declarations that are in the trailing objects of the
		5252	/// class.
		5253	void setUniqueDecls(ArrayRef<ValueDecl *> UDs) {
		5254	assert(UDs.size() == NumUniqueDeclarations &&
		5255	"Unexpected amount of unique declarations.");
		5256	std::copy(UDs.begin(), UDs.end(), getUniqueDeclsRef().begin());
		5257	}
		5258
		5259	/// Get the number of lists per declaration that are in the trailing
		5260	/// objects of the class.
		5261	MutableArrayRef<unsigned> getDeclNumListsRef() {
		5262	return MutableArrayRef<unsigned>(
		5263	static_cast<T *>(this)->template getTrailingObjects<unsigned>(),
		5264	NumUniqueDeclarations);
		5265	}
		5266
		5267	/// Get the number of lists per declaration that are in the trailing
		5268	/// objects of the class.
		5269	ArrayRef<unsigned> getDeclNumListsRef() const {
		5270	return ArrayRef<unsigned>(
		5271	static_cast<const T *>(this)->template getTrailingObjects<unsigned>(),
		5272	NumUniqueDeclarations);
		5273	}
		5274
		5275	/// Set the number of lists per declaration that are in the trailing
		5276	/// objects of the class.
		5277	void setDeclNumLists(ArrayRef<unsigned> DNLs) {
		5278	assert(DNLs.size() == NumUniqueDeclarations &&
		5279	"Unexpected amount of list numbers.");
		5280	std::copy(DNLs.begin(), DNLs.end(), getDeclNumListsRef().begin());
		5281	}
		5282
		5283	/// Get the cumulative component lists sizes that are in the trailing
		5284	/// objects of the class. They are appended after the number of lists.
		5285	MutableArrayRef<unsigned> getComponentListSizesRef() {
		5286	return MutableArrayRef<unsigned>(
		5287	static_cast<T *>(this)->template getTrailingObjects<unsigned>() +
		5288	NumUniqueDeclarations,
		5289	NumComponentLists);
		5290	}
		5291
		5292	/// Get the cumulative component lists sizes that are in the trailing
		5293	/// objects of the class. They are appended after the number of lists.
		5294	ArrayRef<unsigned> getComponentListSizesRef() const {
		5295	return ArrayRef<unsigned>(
		5296	static_cast<const T *>(this)->template getTrailingObjects<unsigned>() +
		5297	NumUniqueDeclarations,
		5298	NumComponentLists);
		5299	}
		5300
		5301	/// Set the cumulative component lists sizes that are in the trailing
		5302	/// objects of the class.
		5303	void setComponentListSizes(ArrayRef<unsigned> CLSs) {
		5304	assert(CLSs.size() == NumComponentLists &&
		5305	"Unexpected amount of component lists.");
		5306	std::copy(CLSs.begin(), CLSs.end(), getComponentListSizesRef().begin());
		5307	}
		5308
		5309	/// Get the components that are in the trailing objects of the class.
		5310	MutableArrayRef<MappableComponent> getComponentsRef() {
		5311	return MutableArrayRef<MappableComponent>(
		5312	static_cast<T *>(this)
		5313	->template getTrailingObjects<MappableComponent>(),
		5314	NumComponents);
		5315	}
		5316
		5317	/// Get the components that are in the trailing objects of the class.
		5318	ArrayRef<MappableComponent> getComponentsRef() const {
		5319	return ArrayRef<MappableComponent>(
		5320	static_cast<const T *>(this)
		5321	->template getTrailingObjects<MappableComponent>(),
		5322	NumComponents);
		5323	}
		5324
		5325	/// Set the components that are in the trailing objects of the class.
		5326	/// This requires the list sizes so that it can also fill the original
		5327	/// expressions, which are the first component of each list.
		5328	void setComponents(ArrayRef<MappableComponent> Components,
		5329	ArrayRef<unsigned> CLSs) {
		5330	assert(Components.size() == NumComponents &&
		5331	"Unexpected amount of component lists.");
		5332	assert(CLSs.size() == NumComponentLists &&
		5333	"Unexpected amount of list sizes.");
		5334	std::copy(Components.begin(), Components.end(), getComponentsRef().begin());
		5335	}
		5336
		5337	/// Fill the clause information from the list of declarations and
		5338	/// associated component lists.
		5339	void setClauseInfo(ArrayRef<ValueDecl *> Declarations,
		5340	MappableExprComponentListsRef ComponentLists) {
		5341	// Perform some checks to make sure the data sizes are consistent with the
		5342	// information available when the clause was created.
		5343	assert(getUniqueDeclarationsTotalNumber(Declarations) ==
		5344	NumUniqueDeclarations &&
		5345	"Unexpected number of mappable expression info entries!");
		5346	assert(getComponentsTotalNumber(ComponentLists) == NumComponents &&
		5347	"Unexpected total number of components!");
		5348	assert(Declarations.size() == ComponentLists.size() &&
		5349	"Declaration and component lists size is not consistent!");
		5350	assert(Declarations.size() == NumComponentLists &&
		5351	"Unexpected declaration and component lists size!");
		5352
		5353	// Organize the components by declaration and retrieve the original
		5354	// expression. Original expressions are always the first component of the
		5355	// mappable component list.
		5356	llvm::MapVector<ValueDecl *, SmallVector<MappableExprComponentListRef, 8>>
		5357	ComponentListMap;
		5358	{
		5359	auto CI = ComponentLists.begin();
		5360	for (auto DI = Declarations.begin(), DE = Declarations.end(); DI != DE;
		5361	++DI, ++CI) {
		5362	assert(!CI->empty() && "Invalid component list!");
		5363	ComponentListMap[DI].push_back(CI);
		5364	}
		5365	}
		5366
		5367	// Iterators of the target storage.
		5368	auto UniqueDeclarations = getUniqueDeclsRef();
		5369	auto UDI = UniqueDeclarations.begin();
		5370
		5371	auto DeclNumLists = getDeclNumListsRef();
		5372	auto DNLI = DeclNumLists.begin();
		5373
		5374	auto ComponentListSizes = getComponentListSizesRef();
		5375	auto CLSI = ComponentListSizes.begin();
		5376
		5377	auto Components = getComponentsRef();
		5378	auto CI = Components.begin();
		5379
		5380	// Variable to compute the accumulation of the number of components.
		5381	unsigned PrevSize = 0u;
		5382
		5383	// Scan all the declarations and associated component lists.
		5384	for (auto &M : ComponentListMap) {
		5385	// The declaration.
		5386	auto *D = M.first;
		5387	// The component lists.
		5388	auto CL = M.second;
		5389
		5390	// Initialize the entry.
		5391	*UDI = D;
		5392	++UDI;
		5393
		5394	*DNLI = CL.size();
		5395	++DNLI;
		5396
		5397	// Obtain the cumulative sizes and concatenate all the components in the
		5398	// reserved storage.
		5399	for (auto C : CL) {
		5400	// Accumulate with the previous size.
		5401	PrevSize += C.size();
		5402
		5403	// Save the size.
		5404	*CLSI = PrevSize;
		5405	++CLSI;
		5406
		5407	// Append components after the current components iterator.
		5408	CI = std::copy(C.begin(), C.end(), CI);
		5409	}
		5410	}
		5411	}
		5412
		5413	/// Set the nested name specifier of associated user-defined mapper.
		5414	void setMapperQualifierLoc(NestedNameSpecifierLoc NNSL) {
		5415	MapperQualifierLoc = NNSL;
		5416	}
		5417
		5418	/// Set the name of associated user-defined mapper.
		5419	void setMapperIdInfo(DeclarationNameInfo MapperId) {
		5420	MapperIdInfo = MapperId;
		5421	}
		5422
		5423	/// Get the user-defined mapper references that are in the trailing objects of
		5424	/// the class.
		5425	MutableArrayRef<Expr *> getUDMapperRefs() {
		5426	assert(SupportsMapper &&
		5427	"Must be a clause that is possible to have user-defined mappers");
		5428	return llvm::MutableArrayRef<Expr *>(
		5429	static_cast<T >(this)->template getTrailingObjects<Expr >() +
		5430	OMPVarListClause<T>::varlist_size(),
		5431	OMPVarListClause<T>::varlist_size());
		5432	}
		5433
		5434	/// Get the user-defined mappers references that are in the trailing objects
		5435	/// of the class.
		5436	ArrayRef<Expr *> getUDMapperRefs() const {
		5437	assert(SupportsMapper &&
		5438	"Must be a clause that is possible to have user-defined mappers");
		5439	return llvm::ArrayRef<Expr *>(
		5440	static_cast<const T >(this)->template getTrailingObjects<Expr >() +
		5441	OMPVarListClause<T>::varlist_size(),
		5442	OMPVarListClause<T>::varlist_size());
		5443	}
		5444
		5445	/// Set the user-defined mappers that are in the trailing objects of the
		5446	/// class.
		5447	void setUDMapperRefs(ArrayRef<Expr *> DMDs) {
		5448	assert(DMDs.size() == OMPVarListClause<T>::varlist_size() &&
		5449	"Unexpected number of user-defined mappers.");
		5450	assert(SupportsMapper &&
		5451	"Must be a clause that is possible to have user-defined mappers");
		5452	std::copy(DMDs.begin(), DMDs.end(), getUDMapperRefs().begin());
		5453	}
		5454
		5455	public:
		5456	/// Return the number of unique base declarations in this clause.
		5457	unsigned getUniqueDeclarationsNum() const { return NumUniqueDeclarations; }
		5458
		5459	/// Return the number of lists derived from the clause expressions.
		5460	unsigned getTotalComponentListNum() const { return NumComponentLists; }
		5461
		5462	/// Return the total number of components in all lists derived from the
		5463	/// clause.
		5464	unsigned getTotalComponentsNum() const { return NumComponents; }
		5465
		5466	/// Gets the nested name specifier for associated user-defined mapper.
		5467	NestedNameSpecifierLoc getMapperQualifierLoc() const {
		5468	return MapperQualifierLoc;
		5469	}
		5470
		5471	/// Gets the name info for associated user-defined mapper.
		5472	const DeclarationNameInfo &getMapperIdInfo() const { return MapperIdInfo; }
		5473
		5474	/// Iterator that browse the components by lists. It also allows
		5475	/// browsing components of a single declaration.
		5476	class const_component_lists_iterator
		5477	: public llvm::iterator_adaptor_base<
		5478	const_component_lists_iterator,
		5479	MappableExprComponentListRef::const_iterator,
		5480	std::forward_iterator_tag, MappableComponent, ptrdiff_t,
		5481	MappableComponent, MappableComponent> {
		5482	// The declaration the iterator currently refers to.
		5483	ArrayRef<ValueDecl *>::iterator DeclCur;
		5484
		5485	// The list number associated with the current declaration.
		5486	ArrayRef<unsigned>::iterator NumListsCur;
		5487
		5488	// Whether this clause is possible to have user-defined mappers associated.
		5489	const bool SupportsMapper;
		5490
		5491	// The user-defined mapper associated with the current declaration.
		5492	ArrayRef<Expr *>::iterator MapperCur;
		5493
		5494	// Remaining lists for the current declaration.
		5495	unsigned RemainingLists = 0;
		5496
		5497	// The cumulative size of the previous list, or zero if there is no previous
		5498	// list.
		5499	unsigned PrevListSize = 0;
		5500
		5501	// The cumulative sizes of the current list - it will delimit the remaining
		5502	// range of interest.
		5503	ArrayRef<unsigned>::const_iterator ListSizeCur;
		5504	ArrayRef<unsigned>::const_iterator ListSizeEnd;
		5505
		5506	// Iterator to the end of the components storage.
		5507	MappableExprComponentListRef::const_iterator End;
		5508
		5509	public:
		5510	/// Construct an iterator that scans all lists.
		5511	explicit const_component_lists_iterator(
		5512	ArrayRef<ValueDecl *> UniqueDecls, ArrayRef<unsigned> DeclsListNum,
		5513	ArrayRef<unsigned> CumulativeListSizes,
		5514	MappableExprComponentListRef Components, bool SupportsMapper,
		5515	ArrayRef<Expr *> Mappers)
		5516	: const_component_lists_iterator::iterator_adaptor_base(
		5517	Components.begin()),
		5518	DeclCur(UniqueDecls.begin()), NumListsCur(DeclsListNum.begin()),
		5519	SupportsMapper(SupportsMapper),
		5520	ListSizeCur(CumulativeListSizes.begin()),
		5521	ListSizeEnd(CumulativeListSizes.end()), End(Components.end()) {
		5522	assert(UniqueDecls.size() == DeclsListNum.size() &&
		5523	"Inconsistent number of declarations and list sizes!");
		5524	if (!DeclsListNum.empty())
		5525	RemainingLists = *NumListsCur;
		5526	if (SupportsMapper)
		5527	MapperCur = Mappers.begin();
		5528	}
		5529
		5530	/// Construct an iterator that scan lists for a given declaration \a
		5531	/// Declaration.
		5532	explicit const_component_lists_iterator(
		5533	const ValueDecl Declaration, ArrayRef<ValueDecl > UniqueDecls,
		5534	ArrayRef<unsigned> DeclsListNum, ArrayRef<unsigned> CumulativeListSizes,
		5535	MappableExprComponentListRef Components, bool SupportsMapper,
		5536	ArrayRef<Expr *> Mappers)
		5537	: const_component_lists_iterator(UniqueDecls, DeclsListNum,
		5538	CumulativeListSizes, Components,
		5539	SupportsMapper, Mappers) {
		5540	// Look for the desired declaration. While we are looking for it, we
		5541	// update the state so that we know the component where a given list
		5542	// starts.
		5543	for (; DeclCur != UniqueDecls.end(); ++DeclCur, ++NumListsCur) {
		5544	if (*DeclCur == Declaration)
		5545	break;
		5546
		5547	assert(*NumListsCur > 0 && "No lists associated with declaration??");
		5548
		5549	// Skip the lists associated with the current declaration, but save the
		5550	// last list size that was skipped.
		5551	std::advance(ListSizeCur, *NumListsCur - 1);
		5552	PrevListSize = *ListSizeCur;
		5553	++ListSizeCur;
		5554
		5555	if (SupportsMapper)
		5556	++MapperCur;
		5557	}
		5558
		5559	// If we didn't find any declaration, advance the iterator to after the
		5560	// last component and set remaining lists to zero.
		5561	if (ListSizeCur == CumulativeListSizes.end()) {
		5562	this->I = End;
		5563	RemainingLists = 0u;
		5564	return;
		5565	}
		5566
		5567	// Set the remaining lists with the total number of lists of the current
		5568	// declaration.
		5569	RemainingLists = *NumListsCur;
		5570
		5571	// Adjust the list size end iterator to the end of the relevant range.
		5572	ListSizeEnd = ListSizeCur;
		5573	std::advance(ListSizeEnd, RemainingLists);
		5574
		5575	// Given that the list sizes are cumulative, the index of the component
		5576	// that start the list is the size of the previous list.
		5577	std::advance(this->I, PrevListSize);
		5578	}
		5579
		5580	// Return the array with the current list. The sizes are cumulative, so the
		5581	// array size is the difference between the current size and previous one.
		5582	std::tuple<const ValueDecl *, MappableExprComponentListRef,
		5583	const ValueDecl *>
		5584	operator*() const {
		5585	assert(ListSizeCur != ListSizeEnd && "Invalid iterator!");
		5586	const ValueDecl *Mapper = nullptr;
		5587	if (SupportsMapper && *MapperCur)
		5588	Mapper = cast<ValueDecl>(cast<DeclRefExpr>(*MapperCur)->getDecl());
		5589	return std::make_tuple(
		5590	*DeclCur,
		5591	MappableExprComponentListRef(&this->I, ListSizeCur - PrevListSize),
		5592	Mapper);
		5593	}
		5594	std::tuple<const ValueDecl *, MappableExprComponentListRef,
		5595	const ValueDecl *>
		5596	operator->() const {
		5597	return **this;
		5598	}
		5599
		5600	// Skip the components of the current list.
		5601	const_component_lists_iterator &operator++() {
		5602	assert(ListSizeCur != ListSizeEnd && RemainingLists &&
		5603	"Invalid iterator!");
		5604
		5605	// If we don't have more lists just skip all the components. Otherwise,
		5606	// advance the iterator by the number of components in the current list.
		5607	if (std::next(ListSizeCur) == ListSizeEnd) {
		5608	this->I = End;
		5609	RemainingLists = 0;
		5610	} else {
		5611	std::advance(this->I, *ListSizeCur - PrevListSize);
		5612	PrevListSize = *ListSizeCur;
		5613
		5614	// We are done with a declaration, move to the next one.
		5615	if (!(--RemainingLists)) {
		5616	++DeclCur;
		5617	++NumListsCur;
		5618	RemainingLists = *NumListsCur;
		5619	assert(RemainingLists && "No lists in the following declaration??");
		5620	}
		5621	}
		5622
		5623	++ListSizeCur;
		5624	if (SupportsMapper)
		5625	++MapperCur;
		5626	return *this;
		5627	}
		5628	};
		5629
		5630	using const_component_lists_range =
		5631	llvm::iterator_range<const_component_lists_iterator>;
		5632
		5633	/// Iterators for all component lists.
		5634	const_component_lists_iterator component_lists_begin() const {
		5635	return const_component_lists_iterator(
		5636	getUniqueDeclsRef(), getDeclNumListsRef(), getComponentListSizesRef(),
		5637	getComponentsRef(), SupportsMapper,
		5638	SupportsMapper ? getUDMapperRefs() : std::nullopt);
		5639	}
		5640	const_component_lists_iterator component_lists_end() const {
		5641	return const_component_lists_iterator(
		5642	ArrayRef<ValueDecl *>(), ArrayRef<unsigned>(), ArrayRef<unsigned>(),
		5643	MappableExprComponentListRef(getComponentsRef().end(),
		5644	getComponentsRef().end()),
		5645	SupportsMapper, std::nullopt);
		5646	}
		5647	const_component_lists_range component_lists() const {
		5648	return {component_lists_begin(), component_lists_end()};
		5649	}
		5650
		5651	/// Iterators for component lists associated with the provided
		5652	/// declaration.
		5653	const_component_lists_iterator
		5654	decl_component_lists_begin(const ValueDecl *VD) const {
		5655	return const_component_lists_iterator(
		5656	VD, getUniqueDeclsRef(), getDeclNumListsRef(),
		5657	getComponentListSizesRef(), getComponentsRef(), SupportsMapper,
		5658	SupportsMapper ? getUDMapperRefs() : std::nullopt);
		5659	}
		5660	const_component_lists_iterator decl_component_lists_end() const {
		5661	return component_lists_end();
		5662	}
		5663	const_component_lists_range decl_component_lists(const ValueDecl *VD) const {
		5664	return {decl_component_lists_begin(VD), decl_component_lists_end()};
		5665	}
		5666
		5667	/// Iterators to access all the declarations, number of lists, list sizes, and
		5668	/// components.
		5669	using const_all_decls_iterator = ArrayRef<ValueDecl *>::iterator;
		5670	using const_all_decls_range = llvm::iterator_range<const_all_decls_iterator>;
		5671
		5672	const_all_decls_range all_decls() const {
		5673	auto A = getUniqueDeclsRef();
		5674	return const_all_decls_range(A.begin(), A.end());
		5675	}
		5676
		5677	using const_all_num_lists_iterator = ArrayRef<unsigned>::iterator;
		5678	using const_all_num_lists_range =
		5679	llvm::iterator_range<const_all_num_lists_iterator>;
		5680
		5681	const_all_num_lists_range all_num_lists() const {
		5682	auto A = getDeclNumListsRef();
		5683	return const_all_num_lists_range(A.begin(), A.end());
		5684	}
		5685
		5686	using const_all_lists_sizes_iterator = ArrayRef<unsigned>::iterator;
		5687	using const_all_lists_sizes_range =
		5688	llvm::iterator_range<const_all_lists_sizes_iterator>;
		5689
		5690	const_all_lists_sizes_range all_lists_sizes() const {
		5691	auto A = getComponentListSizesRef();
		5692	return const_all_lists_sizes_range(A.begin(), A.end());
		5693	}
		5694
		5695	using const_all_components_iterator = ArrayRef<MappableComponent>::iterator;
		5696	using const_all_components_range =
		5697	llvm::iterator_range<const_all_components_iterator>;
		5698
		5699	const_all_components_range all_components() const {
		5700	auto A = getComponentsRef();
		5701	return const_all_components_range(A.begin(), A.end());
		5702	}
		5703
		5704	using mapperlist_iterator = MutableArrayRef<Expr *>::iterator;
		5705	using mapperlist_const_iterator = ArrayRef<const Expr *>::iterator;
		5706	using mapperlist_range = llvm::iterator_range<mapperlist_iterator>;
		5707	using mapperlist_const_range =
		5708	llvm::iterator_range<mapperlist_const_iterator>;
		5709
		5710	mapperlist_iterator mapperlist_begin() { return getUDMapperRefs().begin(); }
		5711	mapperlist_iterator mapperlist_end() { return getUDMapperRefs().end(); }
		5712	mapperlist_const_iterator mapperlist_begin() const {
		5713	return getUDMapperRefs().begin();
		5714	}
		5715	mapperlist_const_iterator mapperlist_end() const {
		5716	return getUDMapperRefs().end();
		5717	}
		5718	mapperlist_range mapperlists() {
		5719	return mapperlist_range(mapperlist_begin(), mapperlist_end());
		5720	}
		5721	mapperlist_const_range mapperlists() const {
		5722	return mapperlist_const_range(mapperlist_begin(), mapperlist_end());
		5723	}
		5724	};
		5725
		5726	/// This represents clause 'map' in the '#pragma omp ...'
		5727	/// directives.
		5728	///
		5729	/// \code
		5730	/// #pragma omp target map(a,b)
		5731	/// \endcode
		5732	/// In this example directive '#pragma omp target' has clause 'map'
		5733	/// with the variables 'a' and 'b'.
		5734	class OMPMapClause final : public OMPMappableExprListClause<OMPMapClause>,
		5735	private llvm::TrailingObjects<
		5736	OMPMapClause, Expr , ValueDecl , unsigned,
		5737	OMPClauseMappableExprCommon::MappableComponent> {
		5738	friend class OMPClauseReader;
		5739	friend OMPMappableExprListClause;
		5740	friend OMPVarListClause;
		5741	friend TrailingObjects;
		5742
		5743	/// Define the sizes of each trailing object array except the last one. This
		5744	/// is required for TrailingObjects to work properly.
		5745	size_t numTrailingObjects(OverloadToken<Expr *>) const {
		5746	// There are varlist_size() of expressions, and varlist_size() of
		5747	// user-defined mappers.
		5748	return 2 * varlist_size() + 1;
		5749	}
		5750	size_t numTrailingObjects(OverloadToken<ValueDecl *>) const {
		5751	return getUniqueDeclarationsNum();
		5752	}
		5753	size_t numTrailingObjects(OverloadToken<unsigned>) const {
		5754	return getUniqueDeclarationsNum() + getTotalComponentListNum();
		5755	}
		5756
		5757	private:
		5758	/// Map-type-modifiers for the 'map' clause.
		5759	OpenMPMapModifierKind MapTypeModifiers[NumberOfOMPMapClauseModifiers] = {
		5760	OMPC_MAP_MODIFIER_unknown, OMPC_MAP_MODIFIER_unknown,
		5761	OMPC_MAP_MODIFIER_unknown, OMPC_MAP_MODIFIER_unknown,
		5762	OMPC_MAP_MODIFIER_unknown, OMPC_MAP_MODIFIER_unknown};
		5763
		5764	/// Location of map-type-modifiers for the 'map' clause.
		5765	SourceLocation MapTypeModifiersLoc[NumberOfOMPMapClauseModifiers];
		5766
		5767	/// Map type for the 'map' clause.
		5768	OpenMPMapClauseKind MapType = OMPC_MAP_unknown;
		5769
		5770	/// Is this an implicit map type or not.
		5771	bool MapTypeIsImplicit = false;
		5772
		5773	/// Location of the map type.
		5774	SourceLocation MapLoc;
		5775
		5776	/// Colon location.
		5777	SourceLocation ColonLoc;
		5778
		5779	/// Build a clause for \a NumVars listed expressions, \a
		5780	/// NumUniqueDeclarations declarations, \a NumComponentLists total component
		5781	/// lists, and \a NumComponents total expression components.
		5782	///
		5783	/// \param MapModifiers Map-type-modifiers.
		5784	/// \param MapModifiersLoc Locations of map-type-modifiers.
		5785	/// \param MapperQualifierLoc C++ nested name specifier for the associated
		5786	/// user-defined mapper.
		5787	/// \param MapperIdInfo The identifier of associated user-defined mapper.
		5788	/// \param MapType Map type.
		5789	/// \param MapTypeIsImplicit Map type is inferred implicitly.
		5790	/// \param MapLoc Location of the map type.
		5791	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		5792	/// StartLoc: starting location of the clause (the clause keyword); 2)
		5793	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		5794	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		5795	/// NumVars: number of expressions listed in this clause; 2)
		5796	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		5797	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		5798	/// NumComponents: total number of expression components in the clause.
		5799	explicit OMPMapClause(ArrayRef<OpenMPMapModifierKind> MapModifiers,
		5800	ArrayRef<SourceLocation> MapModifiersLoc,
		5801	NestedNameSpecifierLoc MapperQualifierLoc,
		5802	DeclarationNameInfo MapperIdInfo,
		5803	OpenMPMapClauseKind MapType, bool MapTypeIsImplicit,
		5804	SourceLocation MapLoc, const OMPVarListLocTy &Locs,
		5805	const OMPMappableExprListSizeTy &Sizes)
		5806	: OMPMappableExprListClause(llvm::omp::OMPC_map, Locs, Sizes,
		5807	/SupportsMapper=/true, &MapperQualifierLoc,
		5808	&MapperIdInfo),
		5809	MapType(MapType), MapTypeIsImplicit(MapTypeIsImplicit), MapLoc(MapLoc) {
		5810	assert(std::size(MapTypeModifiers) == MapModifiers.size() &&
		5811	"Unexpected number of map type modifiers.");
		5812	llvm::copy(MapModifiers, std::begin(MapTypeModifiers));
		5813
		5814	assert(std::size(MapTypeModifiersLoc) == MapModifiersLoc.size() &&
		5815	"Unexpected number of map type modifier locations.");
		5816	llvm::copy(MapModifiersLoc, std::begin(MapTypeModifiersLoc));
		5817	}
		5818
		5819	/// Build an empty clause.
		5820	///
		5821	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		5822	/// NumVars: number of expressions listed in this clause; 2)
		5823	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		5824	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		5825	/// NumComponents: total number of expression components in the clause.
		5826	explicit OMPMapClause(const OMPMappableExprListSizeTy &Sizes)
		5827	: OMPMappableExprListClause(llvm::omp::OMPC_map, OMPVarListLocTy(), Sizes,
		5828	/SupportsMapper=/true) {}
		5829
		5830	/// Set map-type-modifier for the clause.
		5831	///
		5832	/// \param I index for map-type-modifier.
		5833	/// \param T map-type-modifier for the clause.
		5834	void setMapTypeModifier(unsigned I, OpenMPMapModifierKind T) {
		5835	assert(I < NumberOfOMPMapClauseModifiers &&
		5836	"Unexpected index to store map type modifier, exceeds array size.");
		5837	MapTypeModifiers[I] = T;
		5838	}
		5839
		5840	/// Set location for the map-type-modifier.
		5841	///
		5842	/// \param I index for map-type-modifier location.
		5843	/// \param TLoc map-type-modifier location.
		5844	void setMapTypeModifierLoc(unsigned I, SourceLocation TLoc) {
		5845	assert(I < NumberOfOMPMapClauseModifiers &&
		5846	"Index to store map type modifier location exceeds array size.");
		5847	MapTypeModifiersLoc[I] = TLoc;
		5848	}
		5849
		5850	/// Set type for the clause.
		5851	///
		5852	/// \param T Type for the clause.
		5853	void setMapType(OpenMPMapClauseKind T) { MapType = T; }
		5854
		5855	/// Set type location.
		5856	///
		5857	/// \param TLoc Type location.
		5858	void setMapLoc(SourceLocation TLoc) { MapLoc = TLoc; }
		5859
		5860	/// Set colon location.
		5861	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		5862
		5863	/// Set iterator modifier.
		5864	void setIteratorModifier(Expr *IteratorModifier) {
		5865	getTrailingObjects<Expr >()[2 varlist_size()] = IteratorModifier;
		5866	}
		5867
		5868	public:
		5869	/// Creates clause with a list of variables \a VL.
		5870	///
		5871	/// \param C AST context.
		5872	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		5873	/// StartLoc: starting location of the clause (the clause keyword); 2)
		5874	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		5875	/// \param Vars The original expression used in the clause.
		5876	/// \param Declarations Declarations used in the clause.
		5877	/// \param ComponentLists Component lists used in the clause.
		5878	/// \param UDMapperRefs References to user-defined mappers associated with
		5879	/// expressions used in the clause.
		5880	/// \param IteratorModifier Iterator modifier.
		5881	/// \param MapModifiers Map-type-modifiers.
		5882	/// \param MapModifiersLoc Location of map-type-modifiers.
		5883	/// \param UDMQualifierLoc C++ nested name specifier for the associated
		5884	/// user-defined mapper.
		5885	/// \param MapperId The identifier of associated user-defined mapper.
		5886	/// \param Type Map type.
		5887	/// \param TypeIsImplicit Map type is inferred implicitly.
		5888	/// \param TypeLoc Location of the map type.
		5889	static OMPMapClause *
		5890	Create(const ASTContext &C, const OMPVarListLocTy &Locs,
		5891	ArrayRef<Expr > Vars, ArrayRef<ValueDecl > Declarations,
		5892	MappableExprComponentListsRef ComponentLists,
		5893	ArrayRef<Expr > UDMapperRefs, Expr IteratorModifier,
		5894	ArrayRef<OpenMPMapModifierKind> MapModifiers,
		5895	ArrayRef<SourceLocation> MapModifiersLoc,
		5896	NestedNameSpecifierLoc UDMQualifierLoc, DeclarationNameInfo MapperId,
		5897	OpenMPMapClauseKind Type, bool TypeIsImplicit, SourceLocation TypeLoc);
		5898
		5899	/// Creates an empty clause with the place for \a NumVars original
		5900	/// expressions, \a NumUniqueDeclarations declarations, \NumComponentLists
		5901	/// lists, and \a NumComponents expression components.
		5902	///
		5903	/// \param C AST context.
		5904	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		5905	/// NumVars: number of expressions listed in this clause; 2)
		5906	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		5907	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		5908	/// NumComponents: total number of expression components in the clause.
		5909	static OMPMapClause *CreateEmpty(const ASTContext &C,
		5910	const OMPMappableExprListSizeTy &Sizes);
		5911
		5912	/// Fetches Expr * of iterator modifier.
		5913	Expr *getIteratorModifier() {
		5914	return getTrailingObjects<Expr >()[2 varlist_size()];
		5915	}
		5916
		5917	/// Fetches mapping kind for the clause.
		5918	OpenMPMapClauseKind getMapType() const LLVM_READONLY { return MapType; }
		5919
		5920	/// Is this an implicit map type?
		5921	/// We have to capture 'IsMapTypeImplicit' from the parser for more
		5922	/// informative error messages. It helps distinguish map(r) from
		5923	/// map(tofrom: r), which is important to print more helpful error
		5924	/// messages for some target directives.
		5925	bool isImplicitMapType() const LLVM_READONLY { return MapTypeIsImplicit; }
		5926
		5927	/// Fetches the map-type-modifier at 'Cnt' index of array of modifiers.
		5928	///
		5929	/// \param Cnt index for map-type-modifier.
		5930	OpenMPMapModifierKind getMapTypeModifier(unsigned Cnt) const LLVM_READONLY {
		5931	assert(Cnt < NumberOfOMPMapClauseModifiers &&
		5932	"Requested modifier exceeds the total number of modifiers.");
		5933	return MapTypeModifiers[Cnt];
		5934	}
		5935
		5936	/// Fetches the map-type-modifier location at 'Cnt' index of array of
		5937	/// modifiers' locations.
		5938	///
		5939	/// \param Cnt index for map-type-modifier location.
		5940	SourceLocation getMapTypeModifierLoc(unsigned Cnt) const LLVM_READONLY {
		5941	assert(Cnt < NumberOfOMPMapClauseModifiers &&
		5942	"Requested modifier location exceeds total number of modifiers.");
		5943	return MapTypeModifiersLoc[Cnt];
		5944	}
		5945
		5946	/// Fetches ArrayRef of map-type-modifiers.
		5947	ArrayRef<OpenMPMapModifierKind> getMapTypeModifiers() const LLVM_READONLY {
		5948	return llvm::ArrayRef(MapTypeModifiers);
		5949	}
		5950
		5951	/// Fetches ArrayRef of location of map-type-modifiers.
		5952	ArrayRef<SourceLocation> getMapTypeModifiersLoc() const LLVM_READONLY {
		5953	return llvm::ArrayRef(MapTypeModifiersLoc);
		5954	}
		5955
		5956	/// Fetches location of clause mapping kind.
		5957	SourceLocation getMapLoc() const LLVM_READONLY { return MapLoc; }
		5958
		5959	/// Get colon location.
		5960	SourceLocation getColonLoc() const { return ColonLoc; }
		5961
		5962	child_range children() {
		5963	return child_range(
		5964	reinterpret_cast<Stmt **>(varlist_begin()),
		5965	reinterpret_cast<Stmt **>(varlist_end()));
		5966	}
		5967
		5968	const_child_range children() const {
		5969	auto Children = const_cast<OMPMapClause *>(this)->children();
		5970	return const_child_range(Children.begin(), Children.end());
		5971	}
		5972
		5973	child_range used_children() {
		5974	if (MapType == OMPC_MAP_to \|\| MapType == OMPC_MAP_tofrom)
		5975	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		5976	reinterpret_cast<Stmt **>(varlist_end()));
		5977	return child_range(child_iterator(), child_iterator());
		5978	}
		5979	const_child_range used_children() const {
		5980	auto Children = const_cast<OMPMapClause *>(this)->used_children();
		5981	return const_child_range(Children.begin(), Children.end());
		5982	}
		5983
		5984
		5985	static bool classof(const OMPClause *T) {
		5986	return T->getClauseKind() == llvm::omp::OMPC_map;
		5987	}
		5988	};
		5989
		5990	/// This represents 'num_teams' clause in the '#pragma omp ...'
		5991	/// directive.
		5992	///
		5993	/// \code
		5994	/// #pragma omp teams num_teams(n)
		5995	/// \endcode
		5996	/// In this example directive '#pragma omp teams' has clause 'num_teams'
		5997	/// with single expression 'n'.
		5998	class OMPNumTeamsClause : public OMPClause, public OMPClauseWithPreInit {
		5999	friend class OMPClauseReader;
		6000
		6001	/// Location of '('.
		6002	SourceLocation LParenLoc;
		6003
		6004	/// NumTeams number.
		6005	Stmt *NumTeams = nullptr;
		6006
		6007	/// Set the NumTeams number.
		6008	///
		6009	/// \param E NumTeams number.
		6010	void setNumTeams(Expr *E) { NumTeams = E; }
		6011
		6012	public:
		6013	/// Build 'num_teams' clause.
		6014	///
		6015	/// \param E Expression associated with this clause.
		6016	/// \param HelperE Helper Expression associated with this clause.
		6017	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		6018	/// clause must be captured.
		6019	/// \param StartLoc Starting location of the clause.
		6020	/// \param LParenLoc Location of '('.
		6021	/// \param EndLoc Ending location of the clause.
		6022	OMPNumTeamsClause(Expr E, Stmt HelperE, OpenMPDirectiveKind CaptureRegion,
		6023	SourceLocation StartLoc, SourceLocation LParenLoc,
		6024	SourceLocation EndLoc)
		6025	: OMPClause(llvm::omp::OMPC_num_teams, StartLoc, EndLoc),
		6026	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), NumTeams(E) {
		6027	setPreInitStmt(HelperE, CaptureRegion);
		6028	}
		6029
		6030	/// Build an empty clause.
		6031	OMPNumTeamsClause()
		6032	: OMPClause(llvm::omp::OMPC_num_teams, SourceLocation(),
		6033	SourceLocation()),
		6034	OMPClauseWithPreInit(this) {}
		6035
		6036	/// Sets the location of '('.
		6037	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6038
		6039	/// Returns the location of '('.
		6040	SourceLocation getLParenLoc() const { return LParenLoc; }
		6041
		6042	/// Return NumTeams number.
		6043	Expr *getNumTeams() { return cast<Expr>(NumTeams); }
		6044
		6045	/// Return NumTeams number.
		6046	Expr *getNumTeams() const { return cast<Expr>(NumTeams); }
		6047
		6048	child_range children() { return child_range(&NumTeams, &NumTeams + 1); }
		6049
		6050	const_child_range children() const {
		6051	return const_child_range(&NumTeams, &NumTeams + 1);
		6052	}
		6053
		6054	child_range used_children() {
		6055	return child_range(child_iterator(), child_iterator());
		6056	}
		6057	const_child_range used_children() const {
		6058	return const_child_range(const_child_iterator(), const_child_iterator());
		6059	}
		6060
		6061	static bool classof(const OMPClause *T) {
		6062	return T->getClauseKind() == llvm::omp::OMPC_num_teams;
		6063	}
		6064	};
		6065
		6066	/// This represents 'thread_limit' clause in the '#pragma omp ...'
		6067	/// directive.
		6068	///
		6069	/// \code
		6070	/// #pragma omp teams thread_limit(n)
		6071	/// \endcode
		6072	/// In this example directive '#pragma omp teams' has clause 'thread_limit'
		6073	/// with single expression 'n'.
		6074	class OMPThreadLimitClause : public OMPClause, public OMPClauseWithPreInit {
		6075	friend class OMPClauseReader;
		6076
		6077	/// Location of '('.
		6078	SourceLocation LParenLoc;
		6079
		6080	/// ThreadLimit number.
		6081	Stmt *ThreadLimit = nullptr;
		6082
		6083	/// Set the ThreadLimit number.
		6084	///
		6085	/// \param E ThreadLimit number.
		6086	void setThreadLimit(Expr *E) { ThreadLimit = E; }
		6087
		6088	public:
		6089	/// Build 'thread_limit' clause.
		6090	///
		6091	/// \param E Expression associated with this clause.
		6092	/// \param HelperE Helper Expression associated with this clause.
		6093	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		6094	/// clause must be captured.
		6095	/// \param StartLoc Starting location of the clause.
		6096	/// \param LParenLoc Location of '('.
		6097	/// \param EndLoc Ending location of the clause.
		6098	OMPThreadLimitClause(Expr E, Stmt HelperE,
		6099	OpenMPDirectiveKind CaptureRegion,
		6100	SourceLocation StartLoc, SourceLocation LParenLoc,
		6101	SourceLocation EndLoc)
		6102	: OMPClause(llvm::omp::OMPC_thread_limit, StartLoc, EndLoc),
		6103	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), ThreadLimit(E) {
		6104	setPreInitStmt(HelperE, CaptureRegion);
		6105	}
		6106
		6107	/// Build an empty clause.
		6108	OMPThreadLimitClause()
		6109	: OMPClause(llvm::omp::OMPC_thread_limit, SourceLocation(),
		6110	SourceLocation()),
		6111	OMPClauseWithPreInit(this) {}
		6112
		6113	/// Sets the location of '('.
		6114	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6115
		6116	/// Returns the location of '('.
		6117	SourceLocation getLParenLoc() const { return LParenLoc; }
		6118
		6119	/// Return ThreadLimit number.
		6120	Expr *getThreadLimit() { return cast<Expr>(ThreadLimit); }
		6121
		6122	/// Return ThreadLimit number.
		6123	Expr *getThreadLimit() const { return cast<Expr>(ThreadLimit); }
		6124
		6125	child_range children() { return child_range(&ThreadLimit, &ThreadLimit + 1); }
		6126
		6127	const_child_range children() const {
		6128	return const_child_range(&ThreadLimit, &ThreadLimit + 1);
		6129	}
		6130
		6131	child_range used_children() {
		6132	return child_range(child_iterator(), child_iterator());
		6133	}
		6134	const_child_range used_children() const {
		6135	return const_child_range(const_child_iterator(), const_child_iterator());
		6136	}
		6137
		6138	static bool classof(const OMPClause *T) {
		6139	return T->getClauseKind() == llvm::omp::OMPC_thread_limit;
		6140	}
		6141	};
		6142
		6143	/// This represents 'priority' clause in the '#pragma omp ...'
		6144	/// directive.
		6145	///
		6146	/// \code
		6147	/// #pragma omp task priority(n)
		6148	/// \endcode
		6149	/// In this example directive '#pragma omp teams' has clause 'priority' with
		6150	/// single expression 'n'.
		6151	class OMPPriorityClause : public OMPClause, public OMPClauseWithPreInit {
		6152	friend class OMPClauseReader;
		6153
		6154	/// Location of '('.
		6155	SourceLocation LParenLoc;
		6156
		6157	/// Priority number.
		6158	Stmt *Priority = nullptr;
		6159
		6160	/// Set the Priority number.
		6161	///
		6162	/// \param E Priority number.
		6163	void setPriority(Expr *E) { Priority = E; }
		6164
		6165	public:
		6166	/// Build 'priority' clause.
		6167	///
		6168	/// \param Priority Expression associated with this clause.
		6169	/// \param HelperPriority Helper priority for the construct.
		6170	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		6171	/// clause must be captured.
		6172	/// \param StartLoc Starting location of the clause.
		6173	/// \param LParenLoc Location of '('.
		6174	/// \param EndLoc Ending location of the clause.
		6175	OMPPriorityClause(Expr Priority, Stmt HelperPriority,
		6176	OpenMPDirectiveKind CaptureRegion, SourceLocation StartLoc,
		6177	SourceLocation LParenLoc, SourceLocation EndLoc)
		6178	: OMPClause(llvm::omp::OMPC_priority, StartLoc, EndLoc),
		6179	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Priority(Priority) {
		6180	setPreInitStmt(HelperPriority, CaptureRegion);
		6181	}
		6182
		6183	/// Build an empty clause.
		6184	OMPPriorityClause()
		6185	: OMPClause(llvm::omp::OMPC_priority, SourceLocation(), SourceLocation()),
		6186	OMPClauseWithPreInit(this) {}
		6187
		6188	/// Sets the location of '('.
		6189	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6190
		6191	/// Returns the location of '('.
		6192	SourceLocation getLParenLoc() const { return LParenLoc; }
		6193
		6194	/// Return Priority number.
		6195	Expr *getPriority() { return cast<Expr>(Priority); }
		6196
		6197	/// Return Priority number.
		6198	Expr *getPriority() const { return cast<Expr>(Priority); }
		6199
		6200	child_range children() { return child_range(&Priority, &Priority + 1); }
		6201
		6202	const_child_range children() const {
		6203	return const_child_range(&Priority, &Priority + 1);
		6204	}
		6205
		6206	child_range used_children();
		6207	const_child_range used_children() const {
		6208	auto Children = const_cast<OMPPriorityClause *>(this)->used_children();
		6209	return const_child_range(Children.begin(), Children.end());
		6210	}
		6211
		6212	static bool classof(const OMPClause *T) {
		6213	return T->getClauseKind() == llvm::omp::OMPC_priority;
		6214	}
		6215	};
		6216
		6217	/// This represents 'grainsize' clause in the '#pragma omp ...'
		6218	/// directive.
		6219	///
		6220	/// \code
		6221	/// #pragma omp taskloop grainsize(4)
		6222	/// \endcode
		6223	/// In this example directive '#pragma omp taskloop' has clause 'grainsize'
		6224	/// with single expression '4'.
		6225	class OMPGrainsizeClause : public OMPClause, public OMPClauseWithPreInit {
		6226	friend class OMPClauseReader;
		6227
		6228	/// Location of '('.
		6229	SourceLocation LParenLoc;
		6230
		6231	/// Modifiers for 'grainsize' clause.
		6232	OpenMPGrainsizeClauseModifier Modifier = OMPC_GRAINSIZE_unknown;
		6233
		6234	/// Location of the modifier.
		6235	SourceLocation ModifierLoc;
		6236
		6237	/// Safe iteration space distance.
		6238	Stmt *Grainsize = nullptr;
		6239
		6240	/// Set safelen.
		6241	void setGrainsize(Expr *Size) { Grainsize = Size; }
		6242
		6243	/// Sets modifier.
		6244	void setModifier(OpenMPGrainsizeClauseModifier M) { Modifier = M; }
		6245
		6246	/// Sets modifier location.
		6247	void setModifierLoc(SourceLocation Loc) { ModifierLoc = Loc; }
		6248
		6249	public:
		6250	/// Build 'grainsize' clause.
		6251	///
		6252	/// \param Modifier Clause modifier.
		6253	/// \param Size Expression associated with this clause.
		6254	/// \param HelperSize Helper grainsize for the construct.
		6255	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		6256	/// clause must be captured.
		6257	/// \param StartLoc Starting location of the clause.
		6258	/// \param ModifierLoc Modifier location.
		6259	/// \param LParenLoc Location of '('.
		6260	/// \param EndLoc Ending location of the clause.
		6261	OMPGrainsizeClause(OpenMPGrainsizeClauseModifier Modifier, Expr *Size,
		6262	Stmt *HelperSize, OpenMPDirectiveKind CaptureRegion,
		6263	SourceLocation StartLoc, SourceLocation LParenLoc,
		6264	SourceLocation ModifierLoc, SourceLocation EndLoc)
		6265	: OMPClause(llvm::omp::OMPC_grainsize, StartLoc, EndLoc),
		6266	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Modifier(Modifier),
		6267	ModifierLoc(ModifierLoc), Grainsize(Size) {
		6268	setPreInitStmt(HelperSize, CaptureRegion);
		6269	}
		6270
		6271	/// Build an empty clause.
		6272	explicit OMPGrainsizeClause()
		6273	: OMPClause(llvm::omp::OMPC_grainsize, SourceLocation(),
		6274	SourceLocation()),
		6275	OMPClauseWithPreInit(this) {}
		6276
		6277	/// Sets the location of '('.
		6278	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6279
		6280	/// Returns the location of '('.
		6281	SourceLocation getLParenLoc() const { return LParenLoc; }
		6282
		6283	/// Return safe iteration space distance.
		6284	Expr *getGrainsize() const { return cast_or_null<Expr>(Grainsize); }
		6285
		6286	/// Gets modifier.
		6287	OpenMPGrainsizeClauseModifier getModifier() const { return Modifier; }
		6288
		6289	/// Gets modifier location.
		6290	SourceLocation getModifierLoc() const { return ModifierLoc; }
		6291
		6292	child_range children() { return child_range(&Grainsize, &Grainsize + 1); }
		6293
		6294	const_child_range children() const {
		6295	return const_child_range(&Grainsize, &Grainsize + 1);
		6296	}
		6297
		6298	child_range used_children();
		6299	const_child_range used_children() const {
		6300	auto Children = const_cast<OMPGrainsizeClause *>(this)->used_children();
		6301	return const_child_range(Children.begin(), Children.end());
		6302	}
		6303
		6304	static bool classof(const OMPClause *T) {
		6305	return T->getClauseKind() == llvm::omp::OMPC_grainsize;
		6306	}
		6307	};
		6308
		6309	/// This represents 'nogroup' clause in the '#pragma omp ...' directive.
		6310	///
		6311	/// \code
		6312	/// #pragma omp taskloop nogroup
		6313	/// \endcode
		6314	/// In this example directive '#pragma omp taskloop' has 'nogroup' clause.
		6315	class OMPNogroupClause : public OMPClause {
		6316	public:
		6317	/// Build 'nogroup' clause.
		6318	///
		6319	/// \param StartLoc Starting location of the clause.
		6320	/// \param EndLoc Ending location of the clause.
		6321	OMPNogroupClause(SourceLocation StartLoc, SourceLocation EndLoc)
		6322	: OMPClause(llvm::omp::OMPC_nogroup, StartLoc, EndLoc) {}
		6323
		6324	/// Build an empty clause.
		6325	OMPNogroupClause()
		6326	: OMPClause(llvm::omp::OMPC_nogroup, SourceLocation(), SourceLocation()) {
		6327	}
		6328
		6329	child_range children() {
		6330	return child_range(child_iterator(), child_iterator());
		6331	}
		6332
		6333	const_child_range children() const {
		6334	return const_child_range(const_child_iterator(), const_child_iterator());
		6335	}
		6336
		6337	child_range used_children() {
		6338	return child_range(child_iterator(), child_iterator());
		6339	}
		6340	const_child_range used_children() const {
		6341	return const_child_range(const_child_iterator(), const_child_iterator());
		6342	}
		6343
		6344	static bool classof(const OMPClause *T) {
		6345	return T->getClauseKind() == llvm::omp::OMPC_nogroup;
		6346	}
		6347	};
		6348
		6349	/// This represents 'num_tasks' clause in the '#pragma omp ...'
		6350	/// directive.
		6351	///
		6352	/// \code
		6353	/// #pragma omp taskloop num_tasks(4)
		6354	/// \endcode
		6355	/// In this example directive '#pragma omp taskloop' has clause 'num_tasks'
		6356	/// with single expression '4'.
		6357	class OMPNumTasksClause : public OMPClause, public OMPClauseWithPreInit {
		6358	friend class OMPClauseReader;
		6359
		6360	/// Location of '('.
		6361	SourceLocation LParenLoc;
		6362
		6363	/// Modifiers for 'num_tasks' clause.
		6364	OpenMPNumTasksClauseModifier Modifier = OMPC_NUMTASKS_unknown;
		6365
		6366	/// Location of the modifier.
		6367	SourceLocation ModifierLoc;
		6368
		6369	/// Safe iteration space distance.
		6370	Stmt *NumTasks = nullptr;
		6371
		6372	/// Set safelen.
		6373	void setNumTasks(Expr *Size) { NumTasks = Size; }
		6374
		6375	/// Sets modifier.
		6376	void setModifier(OpenMPNumTasksClauseModifier M) { Modifier = M; }
		6377
		6378	/// Sets modifier location.
		6379	void setModifierLoc(SourceLocation Loc) { ModifierLoc = Loc; }
		6380
		6381	public:
		6382	/// Build 'num_tasks' clause.
		6383	///
		6384	/// \param Modifier Clause modifier.
		6385	/// \param Size Expression associated with this clause.
		6386	/// \param HelperSize Helper grainsize for the construct.
		6387	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		6388	/// clause must be captured.
		6389	/// \param StartLoc Starting location of the clause.
		6390	/// \param EndLoc Ending location of the clause.
		6391	/// \param ModifierLoc Modifier location.
		6392	/// \param LParenLoc Location of '('.
		6393	OMPNumTasksClause(OpenMPNumTasksClauseModifier Modifier, Expr *Size,
		6394	Stmt *HelperSize, OpenMPDirectiveKind CaptureRegion,
		6395	SourceLocation StartLoc, SourceLocation LParenLoc,
		6396	SourceLocation ModifierLoc, SourceLocation EndLoc)
		6397	: OMPClause(llvm::omp::OMPC_num_tasks, StartLoc, EndLoc),
		6398	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Modifier(Modifier),
		6399	ModifierLoc(ModifierLoc), NumTasks(Size) {
		6400	setPreInitStmt(HelperSize, CaptureRegion);
		6401	}
		6402
		6403	/// Build an empty clause.
		6404	explicit OMPNumTasksClause()
		6405	: OMPClause(llvm::omp::OMPC_num_tasks, SourceLocation(),
		6406	SourceLocation()),
		6407	OMPClauseWithPreInit(this) {}
		6408
		6409	/// Sets the location of '('.
		6410	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6411
		6412	/// Returns the location of '('.
		6413	SourceLocation getLParenLoc() const { return LParenLoc; }
		6414
		6415	/// Return safe iteration space distance.
		6416	Expr *getNumTasks() const { return cast_or_null<Expr>(NumTasks); }
		6417
		6418	/// Gets modifier.
		6419	OpenMPNumTasksClauseModifier getModifier() const { return Modifier; }
		6420
		6421	/// Gets modifier location.
		6422	SourceLocation getModifierLoc() const { return ModifierLoc; }
		6423
		6424	child_range children() { return child_range(&NumTasks, &NumTasks + 1); }
		6425
		6426	const_child_range children() const {
		6427	return const_child_range(&NumTasks, &NumTasks + 1);
		6428	}
		6429
		6430	child_range used_children();
		6431	const_child_range used_children() const {
		6432	auto Children = const_cast<OMPNumTasksClause *>(this)->used_children();
		6433	return const_child_range(Children.begin(), Children.end());
		6434	}
		6435
		6436	static bool classof(const OMPClause *T) {
		6437	return T->getClauseKind() == llvm::omp::OMPC_num_tasks;
		6438	}
		6439	};
		6440
		6441	/// This represents 'hint' clause in the '#pragma omp ...' directive.
		6442	///
		6443	/// \code
		6444	/// #pragma omp critical (name) hint(6)
		6445	/// \endcode
		6446	/// In this example directive '#pragma omp critical' has name 'name' and clause
		6447	/// 'hint' with argument '6'.
		6448	class OMPHintClause : public OMPClause {
		6449	friend class OMPClauseReader;
		6450
		6451	/// Location of '('.
		6452	SourceLocation LParenLoc;
		6453
		6454	/// Hint expression of the 'hint' clause.
		6455	Stmt *Hint = nullptr;
		6456
		6457	/// Set hint expression.
		6458	void setHint(Expr *H) { Hint = H; }
		6459
		6460	public:
		6461	/// Build 'hint' clause with expression \a Hint.
		6462	///
		6463	/// \param Hint Hint expression.
		6464	/// \param StartLoc Starting location of the clause.
		6465	/// \param LParenLoc Location of '('.
		6466	/// \param EndLoc Ending location of the clause.
		6467	OMPHintClause(Expr *Hint, SourceLocation StartLoc, SourceLocation LParenLoc,
		6468	SourceLocation EndLoc)
		6469	: OMPClause(llvm::omp::OMPC_hint, StartLoc, EndLoc), LParenLoc(LParenLoc),
		6470	Hint(Hint) {}
		6471
		6472	/// Build an empty clause.
		6473	OMPHintClause()
		6474	: OMPClause(llvm::omp::OMPC_hint, SourceLocation(), SourceLocation()) {}
		6475
		6476	/// Sets the location of '('.
		6477	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6478
		6479	/// Returns the location of '('.
		6480	SourceLocation getLParenLoc() const { return LParenLoc; }
		6481
		6482	/// Returns number of threads.
		6483	Expr *getHint() const { return cast_or_null<Expr>(Hint); }
		6484
		6485	child_range children() { return child_range(&Hint, &Hint + 1); }
		6486
		6487	const_child_range children() const {
		6488	return const_child_range(&Hint, &Hint + 1);
		6489	}
		6490
		6491	child_range used_children() {
		6492	return child_range(child_iterator(), child_iterator());
		6493	}
		6494	const_child_range used_children() const {
		6495	return const_child_range(const_child_iterator(), const_child_iterator());
		6496	}
		6497
		6498	static bool classof(const OMPClause *T) {
		6499	return T->getClauseKind() == llvm::omp::OMPC_hint;
		6500	}
		6501	};
		6502
		6503	/// This represents 'dist_schedule' clause in the '#pragma omp ...'
		6504	/// directive.
		6505	///
		6506	/// \code
		6507	/// #pragma omp distribute dist_schedule(static, 3)
		6508	/// \endcode
		6509	/// In this example directive '#pragma omp distribute' has 'dist_schedule'
		6510	/// clause with arguments 'static' and '3'.
		6511	class OMPDistScheduleClause : public OMPClause, public OMPClauseWithPreInit {
		6512	friend class OMPClauseReader;
		6513
		6514	/// Location of '('.
		6515	SourceLocation LParenLoc;
		6516
		6517	/// A kind of the 'schedule' clause.
		6518	OpenMPDistScheduleClauseKind Kind = OMPC_DIST_SCHEDULE_unknown;
		6519
		6520	/// Start location of the schedule kind in source code.
		6521	SourceLocation KindLoc;
		6522
		6523	/// Location of ',' (if any).
		6524	SourceLocation CommaLoc;
		6525
		6526	/// Chunk size.
		6527	Expr *ChunkSize = nullptr;
		6528
		6529	/// Set schedule kind.
		6530	///
		6531	/// \param K Schedule kind.
		6532	void setDistScheduleKind(OpenMPDistScheduleClauseKind K) { Kind = K; }
		6533
		6534	/// Sets the location of '('.
		6535	///
		6536	/// \param Loc Location of '('.
		6537	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6538
		6539	/// Set schedule kind start location.
		6540	///
		6541	/// \param KLoc Schedule kind location.
		6542	void setDistScheduleKindLoc(SourceLocation KLoc) { KindLoc = KLoc; }
		6543
		6544	/// Set location of ','.
		6545	///
		6546	/// \param Loc Location of ','.
		6547	void setCommaLoc(SourceLocation Loc) { CommaLoc = Loc; }
		6548
		6549	/// Set chunk size.
		6550	///
		6551	/// \param E Chunk size.
		6552	void setChunkSize(Expr *E) { ChunkSize = E; }
		6553
		6554	public:
		6555	/// Build 'dist_schedule' clause with schedule kind \a Kind and chunk
		6556	/// size expression \a ChunkSize.
		6557	///
		6558	/// \param StartLoc Starting location of the clause.
		6559	/// \param LParenLoc Location of '('.
		6560	/// \param KLoc Starting location of the argument.
		6561	/// \param CommaLoc Location of ','.
		6562	/// \param EndLoc Ending location of the clause.
		6563	/// \param Kind DistSchedule kind.
		6564	/// \param ChunkSize Chunk size.
		6565	/// \param HelperChunkSize Helper chunk size for combined directives.
		6566	OMPDistScheduleClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		6567	SourceLocation KLoc, SourceLocation CommaLoc,
		6568	SourceLocation EndLoc,
		6569	OpenMPDistScheduleClauseKind Kind, Expr *ChunkSize,
		6570	Stmt *HelperChunkSize)
		6571	: OMPClause(llvm::omp::OMPC_dist_schedule, StartLoc, EndLoc),
		6572	OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Kind(Kind),
		6573	KindLoc(KLoc), CommaLoc(CommaLoc), ChunkSize(ChunkSize) {
		6574	setPreInitStmt(HelperChunkSize);
		6575	}
		6576
		6577	/// Build an empty clause.
		6578	explicit OMPDistScheduleClause()
		6579	: OMPClause(llvm::omp::OMPC_dist_schedule, SourceLocation(),
		6580	SourceLocation()),
		6581	OMPClauseWithPreInit(this) {}
		6582
		6583	/// Get kind of the clause.
		6584	OpenMPDistScheduleClauseKind getDistScheduleKind() const { return Kind; }
		6585
		6586	/// Get location of '('.
		6587	SourceLocation getLParenLoc() { return LParenLoc; }
		6588
		6589	/// Get kind location.
		6590	SourceLocation getDistScheduleKindLoc() { return KindLoc; }
		6591
		6592	/// Get location of ','.
		6593	SourceLocation getCommaLoc() { return CommaLoc; }
		6594
		6595	/// Get chunk size.
		6596	Expr *getChunkSize() { return ChunkSize; }
		6597
		6598	/// Get chunk size.
		6599	const Expr *getChunkSize() const { return ChunkSize; }
		6600
		6601	child_range children() {
		6602	return child_range(reinterpret_cast<Stmt **>(&ChunkSize),
		6603	reinterpret_cast<Stmt **>(&ChunkSize) + 1);
		6604	}
		6605
		6606	const_child_range children() const {
		6607	auto Children = const_cast<OMPDistScheduleClause *>(this)->children();
		6608	return const_child_range(Children.begin(), Children.end());
		6609	}
		6610
		6611	child_range used_children() {
		6612	return child_range(child_iterator(), child_iterator());
		6613	}
		6614	const_child_range used_children() const {
		6615	return const_child_range(const_child_iterator(), const_child_iterator());
		6616	}
		6617
		6618	static bool classof(const OMPClause *T) {
		6619	return T->getClauseKind() == llvm::omp::OMPC_dist_schedule;
		6620	}
		6621	};
		6622
		6623	/// This represents 'defaultmap' clause in the '#pragma omp ...' directive.
		6624	///
		6625	/// \code
		6626	/// #pragma omp target defaultmap(tofrom: scalar)
		6627	/// \endcode
		6628	/// In this example directive '#pragma omp target' has 'defaultmap' clause of kind
		6629	/// 'scalar' with modifier 'tofrom'.
		6630	class OMPDefaultmapClause : public OMPClause {
		6631	friend class OMPClauseReader;
		6632
		6633	/// Location of '('.
		6634	SourceLocation LParenLoc;
		6635
		6636	/// Modifiers for 'defaultmap' clause.
		6637	OpenMPDefaultmapClauseModifier Modifier = OMPC_DEFAULTMAP_MODIFIER_unknown;
		6638
		6639	/// Locations of modifiers.
		6640	SourceLocation ModifierLoc;
		6641
		6642	/// A kind of the 'defaultmap' clause.
		6643	OpenMPDefaultmapClauseKind Kind = OMPC_DEFAULTMAP_unknown;
		6644
		6645	/// Start location of the defaultmap kind in source code.
		6646	SourceLocation KindLoc;
		6647
		6648	/// Set defaultmap kind.
		6649	///
		6650	/// \param K Defaultmap kind.
		6651	void setDefaultmapKind(OpenMPDefaultmapClauseKind K) { Kind = K; }
		6652
		6653	/// Set the defaultmap modifier.
		6654	///
		6655	/// \param M Defaultmap modifier.
		6656	void setDefaultmapModifier(OpenMPDefaultmapClauseModifier M) {
		6657	Modifier = M;
		6658	}
		6659
		6660	/// Set location of the defaultmap modifier.
		6661	void setDefaultmapModifierLoc(SourceLocation Loc) {
		6662	ModifierLoc = Loc;
		6663	}
		6664
		6665	/// Sets the location of '('.
		6666	///
		6667	/// \param Loc Location of '('.
		6668	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		6669
		6670	/// Set defaultmap kind start location.
		6671	///
		6672	/// \param KLoc Defaultmap kind location.
		6673	void setDefaultmapKindLoc(SourceLocation KLoc) { KindLoc = KLoc; }
		6674
		6675	public:
		6676	/// Build 'defaultmap' clause with defaultmap kind \a Kind
		6677	///
		6678	/// \param StartLoc Starting location of the clause.
		6679	/// \param LParenLoc Location of '('.
		6680	/// \param KLoc Starting location of the argument.
		6681	/// \param EndLoc Ending location of the clause.
		6682	/// \param Kind Defaultmap kind.
		6683	/// \param M The modifier applied to 'defaultmap' clause.
		6684	/// \param MLoc Location of the modifier
		6685	OMPDefaultmapClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		6686	SourceLocation MLoc, SourceLocation KLoc,
		6687	SourceLocation EndLoc, OpenMPDefaultmapClauseKind Kind,
		6688	OpenMPDefaultmapClauseModifier M)
		6689	: OMPClause(llvm::omp::OMPC_defaultmap, StartLoc, EndLoc),
		6690	LParenLoc(LParenLoc), Modifier(M), ModifierLoc(MLoc), Kind(Kind),
		6691	KindLoc(KLoc) {}
		6692
		6693	/// Build an empty clause.
		6694	explicit OMPDefaultmapClause()
		6695	: OMPClause(llvm::omp::OMPC_defaultmap, SourceLocation(),
		6696	SourceLocation()) {}
		6697
		6698	/// Get kind of the clause.
		6699	OpenMPDefaultmapClauseKind getDefaultmapKind() const { return Kind; }
		6700
		6701	/// Get the modifier of the clause.
		6702	OpenMPDefaultmapClauseModifier getDefaultmapModifier() const {
		6703	return Modifier;
		6704	}
		6705
		6706	/// Get location of '('.
		6707	SourceLocation getLParenLoc() { return LParenLoc; }
		6708
		6709	/// Get kind location.
		6710	SourceLocation getDefaultmapKindLoc() { return KindLoc; }
		6711
		6712	/// Get the modifier location.
		6713	SourceLocation getDefaultmapModifierLoc() const {
		6714	return ModifierLoc;
		6715	}
		6716
		6717	child_range children() {
		6718	return child_range(child_iterator(), child_iterator());
		6719	}
		6720
		6721	const_child_range children() const {
		6722	return const_child_range(const_child_iterator(), const_child_iterator());
		6723	}
		6724
		6725	child_range used_children() {
		6726	return child_range(child_iterator(), child_iterator());
		6727	}
		6728	const_child_range used_children() const {
		6729	return const_child_range(const_child_iterator(), const_child_iterator());
		6730	}
		6731
		6732	static bool classof(const OMPClause *T) {
		6733	return T->getClauseKind() == llvm::omp::OMPC_defaultmap;
		6734	}
		6735	};
		6736
		6737	/// This represents clause 'to' in the '#pragma omp ...'
		6738	/// directives.
		6739	///
		6740	/// \code
		6741	/// #pragma omp target update to(a,b)
		6742	/// \endcode
		6743	/// In this example directive '#pragma omp target update' has clause 'to'
		6744	/// with the variables 'a' and 'b'.
		6745	class OMPToClause final : public OMPMappableExprListClause<OMPToClause>,
		6746	private llvm::TrailingObjects<
		6747	OMPToClause, Expr , ValueDecl , unsigned,
		6748	OMPClauseMappableExprCommon::MappableComponent> {
		6749	friend class OMPClauseReader;
		6750	friend OMPMappableExprListClause;
		6751	friend OMPVarListClause;
		6752	friend TrailingObjects;
		6753
		6754	/// Motion-modifiers for the 'to' clause.
		6755	OpenMPMotionModifierKind MotionModifiers[NumberOfOMPMotionModifiers] = {
		6756	OMPC_MOTION_MODIFIER_unknown, OMPC_MOTION_MODIFIER_unknown};
		6757
		6758	/// Location of motion-modifiers for the 'to' clause.
		6759	SourceLocation MotionModifiersLoc[NumberOfOMPMotionModifiers];
		6760
		6761	/// Colon location.
		6762	SourceLocation ColonLoc;
		6763
		6764	/// Build clause with number of variables \a NumVars.
		6765	///
		6766	/// \param TheMotionModifiers Motion-modifiers.
		6767	/// \param TheMotionModifiersLoc Locations of motion-modifiers.
		6768	/// \param MapperQualifierLoc C++ nested name specifier for the associated
		6769	/// user-defined mapper.
		6770	/// \param MapperIdInfo The identifier of associated user-defined mapper.
		6771	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		6772	/// StartLoc: starting location of the clause (the clause keyword); 2)
		6773	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		6774	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		6775	/// NumVars: number of expressions listed in this clause; 2)
		6776	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		6777	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		6778	/// NumComponents: total number of expression components in the clause.
		6779	explicit OMPToClause(ArrayRef<OpenMPMotionModifierKind> TheMotionModifiers,
		6780	ArrayRef<SourceLocation> TheMotionModifiersLoc,
		6781	NestedNameSpecifierLoc MapperQualifierLoc,
		6782	DeclarationNameInfo MapperIdInfo,
		6783	const OMPVarListLocTy &Locs,
		6784	const OMPMappableExprListSizeTy &Sizes)
		6785	: OMPMappableExprListClause(llvm::omp::OMPC_to, Locs, Sizes,
		6786	/SupportsMapper=/true, &MapperQualifierLoc,
		6787	&MapperIdInfo) {
		6788	assert(std::size(MotionModifiers) == TheMotionModifiers.size() &&
		6789	"Unexpected number of motion modifiers.");
		6790	llvm::copy(TheMotionModifiers, std::begin(MotionModifiers));
		6791
		6792	assert(std::size(MotionModifiersLoc) == TheMotionModifiersLoc.size() &&
		6793	"Unexpected number of motion modifier locations.");
		6794	llvm::copy(TheMotionModifiersLoc, std::begin(MotionModifiersLoc));
		6795	}
		6796
		6797	/// Build an empty clause.
		6798	///
		6799	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		6800	/// NumVars: number of expressions listed in this clause; 2)
		6801	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		6802	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		6803	/// NumComponents: total number of expression components in the clause.
		6804	explicit OMPToClause(const OMPMappableExprListSizeTy &Sizes)
		6805	: OMPMappableExprListClause(llvm::omp::OMPC_to, OMPVarListLocTy(), Sizes,
		6806	/SupportsMapper=/true) {}
		6807
		6808	/// Set motion-modifier for the clause.
		6809	///
		6810	/// \param I index for motion-modifier.
		6811	/// \param T motion-modifier for the clause.
		6812	void setMotionModifier(unsigned I, OpenMPMotionModifierKind T) {
		6813	assert(I < NumberOfOMPMotionModifiers &&
		6814	"Unexpected index to store motion modifier, exceeds array size.");
		6815	MotionModifiers[I] = T;
		6816	}
		6817
		6818	/// Set location for the motion-modifier.
		6819	///
		6820	/// \param I index for motion-modifier location.
		6821	/// \param TLoc motion-modifier location.
		6822	void setMotionModifierLoc(unsigned I, SourceLocation TLoc) {
		6823	assert(I < NumberOfOMPMotionModifiers &&
		6824	"Index to store motion modifier location exceeds array size.");
		6825	MotionModifiersLoc[I] = TLoc;
		6826	}
		6827
		6828	/// Set colon location.
		6829	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		6830
		6831	/// Define the sizes of each trailing object array except the last one. This
		6832	/// is required for TrailingObjects to work properly.
		6833	size_t numTrailingObjects(OverloadToken<Expr *>) const {
		6834	// There are varlist_size() of expressions, and varlist_size() of
		6835	// user-defined mappers.
		6836	return 2 * varlist_size();
		6837	}
		6838	size_t numTrailingObjects(OverloadToken<ValueDecl *>) const {
		6839	return getUniqueDeclarationsNum();
		6840	}
		6841	size_t numTrailingObjects(OverloadToken<unsigned>) const {
		6842	return getUniqueDeclarationsNum() + getTotalComponentListNum();
		6843	}
		6844
		6845	public:
		6846	/// Creates clause with a list of variables \a Vars.
		6847	///
		6848	/// \param C AST context.
		6849	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		6850	/// StartLoc: starting location of the clause (the clause keyword); 2)
		6851	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		6852	/// \param Vars The original expression used in the clause.
		6853	/// \param Declarations Declarations used in the clause.
		6854	/// \param ComponentLists Component lists used in the clause.
		6855	/// \param MotionModifiers Motion-modifiers.
		6856	/// \param MotionModifiersLoc Location of motion-modifiers.
		6857	/// \param UDMapperRefs References to user-defined mappers associated with
		6858	/// expressions used in the clause.
		6859	/// \param UDMQualifierLoc C++ nested name specifier for the associated
		6860	/// user-defined mapper.
		6861	/// \param MapperId The identifier of associated user-defined mapper.
		6862	static OMPToClause *Create(const ASTContext &C, const OMPVarListLocTy &Locs,
		6863	ArrayRef<Expr *> Vars,
		6864	ArrayRef<ValueDecl *> Declarations,
		6865	MappableExprComponentListsRef ComponentLists,
		6866	ArrayRef<Expr *> UDMapperRefs,
		6867	ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
		6868	ArrayRef<SourceLocation> MotionModifiersLoc,
		6869	NestedNameSpecifierLoc UDMQualifierLoc,
		6870	DeclarationNameInfo MapperId);
		6871
		6872	/// Creates an empty clause with the place for \a NumVars variables.
		6873	///
		6874	/// \param C AST context.
		6875	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		6876	/// NumVars: number of expressions listed in this clause; 2)
		6877	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		6878	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		6879	/// NumComponents: total number of expression components in the clause.
		6880	static OMPToClause *CreateEmpty(const ASTContext &C,
		6881	const OMPMappableExprListSizeTy &Sizes);
		6882
		6883	/// Fetches the motion-modifier at 'Cnt' index of array of modifiers.
		6884	///
		6885	/// \param Cnt index for motion-modifier.
		6886	OpenMPMotionModifierKind getMotionModifier(unsigned Cnt) const LLVM_READONLY {
		6887	assert(Cnt < NumberOfOMPMotionModifiers &&
		6888	"Requested modifier exceeds the total number of modifiers.");
		6889	return MotionModifiers[Cnt];
		6890	}
		6891
		6892	/// Fetches the motion-modifier location at 'Cnt' index of array of modifiers'
		6893	/// locations.
		6894	///
		6895	/// \param Cnt index for motion-modifier location.
		6896	SourceLocation getMotionModifierLoc(unsigned Cnt) const LLVM_READONLY {
		6897	assert(Cnt < NumberOfOMPMotionModifiers &&
		6898	"Requested modifier location exceeds total number of modifiers.");
		6899	return MotionModifiersLoc[Cnt];
		6900	}
		6901
		6902	/// Fetches ArrayRef of motion-modifiers.
		6903	ArrayRef<OpenMPMotionModifierKind> getMotionModifiers() const LLVM_READONLY {
		6904	return llvm::ArrayRef(MotionModifiers);
		6905	}
		6906
		6907	/// Fetches ArrayRef of location of motion-modifiers.
		6908	ArrayRef<SourceLocation> getMotionModifiersLoc() const LLVM_READONLY {
		6909	return llvm::ArrayRef(MotionModifiersLoc);
		6910	}
		6911
		6912	/// Get colon location.
		6913	SourceLocation getColonLoc() const { return ColonLoc; }
		6914
		6915	child_range children() {
		6916	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		6917	reinterpret_cast<Stmt **>(varlist_end()));
		6918	}
		6919
		6920	const_child_range children() const {
		6921	auto Children = const_cast<OMPToClause *>(this)->children();
		6922	return const_child_range(Children.begin(), Children.end());
		6923	}
		6924
		6925	child_range used_children() {
		6926	return child_range(child_iterator(), child_iterator());
		6927	}
		6928	const_child_range used_children() const {
		6929	return const_child_range(const_child_iterator(), const_child_iterator());
		6930	}
		6931
		6932	static bool classof(const OMPClause *T) {
		6933	return T->getClauseKind() == llvm::omp::OMPC_to;
		6934	}
		6935	};
		6936
		6937	/// This represents clause 'from' in the '#pragma omp ...'
		6938	/// directives.
		6939	///
		6940	/// \code
		6941	/// #pragma omp target update from(a,b)
		6942	/// \endcode
		6943	/// In this example directive '#pragma omp target update' has clause 'from'
		6944	/// with the variables 'a' and 'b'.
		6945	class OMPFromClause final
		6946	: public OMPMappableExprListClause<OMPFromClause>,
		6947	private llvm::TrailingObjects<
		6948	OMPFromClause, Expr , ValueDecl , unsigned,
		6949	OMPClauseMappableExprCommon::MappableComponent> {
		6950	friend class OMPClauseReader;
		6951	friend OMPMappableExprListClause;
		6952	friend OMPVarListClause;
		6953	friend TrailingObjects;
		6954
		6955	/// Motion-modifiers for the 'from' clause.
		6956	OpenMPMotionModifierKind MotionModifiers[NumberOfOMPMotionModifiers] = {
		6957	OMPC_MOTION_MODIFIER_unknown, OMPC_MOTION_MODIFIER_unknown};
		6958
		6959	/// Location of motion-modifiers for the 'from' clause.
		6960	SourceLocation MotionModifiersLoc[NumberOfOMPMotionModifiers];
		6961
		6962	/// Colon location.
		6963	SourceLocation ColonLoc;
		6964
		6965	/// Build clause with number of variables \a NumVars.
		6966	///
		6967	/// \param TheMotionModifiers Motion-modifiers.
		6968	/// \param TheMotionModifiersLoc Locations of motion-modifiers.
		6969	/// \param MapperQualifierLoc C++ nested name specifier for the associated
		6970	/// user-defined mapper.
		6971	/// \param MapperIdInfo The identifier of associated user-defined mapper.
		6972	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		6973	/// StartLoc: starting location of the clause (the clause keyword); 2)
		6974	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		6975	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		6976	/// NumVars: number of expressions listed in this clause; 2)
		6977	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		6978	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		6979	/// NumComponents: total number of expression components in the clause.
		6980	explicit OMPFromClause(ArrayRef<OpenMPMotionModifierKind> TheMotionModifiers,
		6981	ArrayRef<SourceLocation> TheMotionModifiersLoc,
		6982	NestedNameSpecifierLoc MapperQualifierLoc,
		6983	DeclarationNameInfo MapperIdInfo,
		6984	const OMPVarListLocTy &Locs,
		6985	const OMPMappableExprListSizeTy &Sizes)
		6986	: OMPMappableExprListClause(llvm::omp::OMPC_from, Locs, Sizes,
		6987	/SupportsMapper=/true, &MapperQualifierLoc,
		6988	&MapperIdInfo) {
		6989	assert(std::size(MotionModifiers) == TheMotionModifiers.size() &&
		6990	"Unexpected number of motion modifiers.");
		6991	llvm::copy(TheMotionModifiers, std::begin(MotionModifiers));
		6992
		6993	assert(std::size(MotionModifiersLoc) == TheMotionModifiersLoc.size() &&
		6994	"Unexpected number of motion modifier locations.");
		6995	llvm::copy(TheMotionModifiersLoc, std::begin(MotionModifiersLoc));
		6996	}
		6997
		6998	/// Build an empty clause.
		6999	///
		7000	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7001	/// NumVars: number of expressions listed in this clause; 2)
		7002	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7003	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7004	/// NumComponents: total number of expression components in the clause.
		7005	explicit OMPFromClause(const OMPMappableExprListSizeTy &Sizes)
		7006	: OMPMappableExprListClause(llvm::omp::OMPC_from, OMPVarListLocTy(),
		7007	Sizes, /SupportsMapper=/true) {}
		7008
		7009	/// Set motion-modifier for the clause.
		7010	///
		7011	/// \param I index for motion-modifier.
		7012	/// \param T motion-modifier for the clause.
		7013	void setMotionModifier(unsigned I, OpenMPMotionModifierKind T) {
		7014	assert(I < NumberOfOMPMotionModifiers &&
		7015	"Unexpected index to store motion modifier, exceeds array size.");
		7016	MotionModifiers[I] = T;
		7017	}
		7018
		7019	/// Set location for the motion-modifier.
		7020	///
		7021	/// \param I index for motion-modifier location.
		7022	/// \param TLoc motion-modifier location.
		7023	void setMotionModifierLoc(unsigned I, SourceLocation TLoc) {
		7024	assert(I < NumberOfOMPMotionModifiers &&
		7025	"Index to store motion modifier location exceeds array size.");
		7026	MotionModifiersLoc[I] = TLoc;
		7027	}
		7028
		7029	/// Set colon location.
		7030	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		7031
		7032	/// Define the sizes of each trailing object array except the last one. This
		7033	/// is required for TrailingObjects to work properly.
		7034	size_t numTrailingObjects(OverloadToken<Expr *>) const {
		7035	// There are varlist_size() of expressions, and varlist_size() of
		7036	// user-defined mappers.
		7037	return 2 * varlist_size();
		7038	}
		7039	size_t numTrailingObjects(OverloadToken<ValueDecl *>) const {
		7040	return getUniqueDeclarationsNum();
		7041	}
		7042	size_t numTrailingObjects(OverloadToken<unsigned>) const {
		7043	return getUniqueDeclarationsNum() + getTotalComponentListNum();
		7044	}
		7045
		7046	public:
		7047	/// Creates clause with a list of variables \a Vars.
		7048	///
		7049	/// \param C AST context.
		7050	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7051	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7052	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7053	/// \param Vars The original expression used in the clause.
		7054	/// \param Declarations Declarations used in the clause.
		7055	/// \param ComponentLists Component lists used in the clause.
		7056	/// \param MotionModifiers Motion-modifiers.
		7057	/// \param MotionModifiersLoc Location of motion-modifiers.
		7058	/// \param UDMapperRefs References to user-defined mappers associated with
		7059	/// expressions used in the clause.
		7060	/// \param UDMQualifierLoc C++ nested name specifier for the associated
		7061	/// user-defined mapper.
		7062	/// \param MapperId The identifier of associated user-defined mapper.
		7063	static OMPFromClause *
		7064	Create(const ASTContext &C, const OMPVarListLocTy &Locs,
		7065	ArrayRef<Expr > Vars, ArrayRef<ValueDecl > Declarations,
		7066	MappableExprComponentListsRef ComponentLists,
		7067	ArrayRef<Expr *> UDMapperRefs,
		7068	ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
		7069	ArrayRef<SourceLocation> MotionModifiersLoc,
		7070	NestedNameSpecifierLoc UDMQualifierLoc, DeclarationNameInfo MapperId);
		7071
		7072	/// Creates an empty clause with the place for \a NumVars variables.
		7073	///
		7074	/// \param C AST context.
		7075	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7076	/// NumVars: number of expressions listed in this clause; 2)
		7077	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7078	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7079	/// NumComponents: total number of expression components in the clause.
		7080	static OMPFromClause *CreateEmpty(const ASTContext &C,
		7081	const OMPMappableExprListSizeTy &Sizes);
		7082
		7083	/// Fetches the motion-modifier at 'Cnt' index of array of modifiers.
		7084	///
		7085	/// \param Cnt index for motion-modifier.
		7086	OpenMPMotionModifierKind getMotionModifier(unsigned Cnt) const LLVM_READONLY {
		7087	assert(Cnt < NumberOfOMPMotionModifiers &&
		7088	"Requested modifier exceeds the total number of modifiers.");
		7089	return MotionModifiers[Cnt];
		7090	}
		7091
		7092	/// Fetches the motion-modifier location at 'Cnt' index of array of modifiers'
		7093	/// locations.
		7094	///
		7095	/// \param Cnt index for motion-modifier location.
		7096	SourceLocation getMotionModifierLoc(unsigned Cnt) const LLVM_READONLY {
		7097	assert(Cnt < NumberOfOMPMotionModifiers &&
		7098	"Requested modifier location exceeds total number of modifiers.");
		7099	return MotionModifiersLoc[Cnt];
		7100	}
		7101
		7102	/// Fetches ArrayRef of motion-modifiers.
		7103	ArrayRef<OpenMPMotionModifierKind> getMotionModifiers() const LLVM_READONLY {
		7104	return llvm::ArrayRef(MotionModifiers);
		7105	}
		7106
		7107	/// Fetches ArrayRef of location of motion-modifiers.
		7108	ArrayRef<SourceLocation> getMotionModifiersLoc() const LLVM_READONLY {
		7109	return llvm::ArrayRef(MotionModifiersLoc);
		7110	}
		7111
		7112	/// Get colon location.
		7113	SourceLocation getColonLoc() const { return ColonLoc; }
		7114
		7115	child_range children() {
		7116	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		7117	reinterpret_cast<Stmt **>(varlist_end()));
		7118	}
		7119
		7120	const_child_range children() const {
		7121	auto Children = const_cast<OMPFromClause *>(this)->children();
		7122	return const_child_range(Children.begin(), Children.end());
		7123	}
		7124
		7125	child_range used_children() {
		7126	return child_range(child_iterator(), child_iterator());
		7127	}
		7128	const_child_range used_children() const {
		7129	return const_child_range(const_child_iterator(), const_child_iterator());
		7130	}
		7131
		7132	static bool classof(const OMPClause *T) {
		7133	return T->getClauseKind() == llvm::omp::OMPC_from;
		7134	}
		7135	};
		7136
		7137	/// This represents clause 'use_device_ptr' in the '#pragma omp ...'
		7138	/// directives.
		7139	///
		7140	/// \code
		7141	/// #pragma omp target data use_device_ptr(a,b)
		7142	/// \endcode
		7143	/// In this example directive '#pragma omp target data' has clause
		7144	/// 'use_device_ptr' with the variables 'a' and 'b'.
		7145	class OMPUseDevicePtrClause final
		7146	: public OMPMappableExprListClause<OMPUseDevicePtrClause>,
		7147	private llvm::TrailingObjects<
		7148	OMPUseDevicePtrClause, Expr , ValueDecl , unsigned,
		7149	OMPClauseMappableExprCommon::MappableComponent> {
		7150	friend class OMPClauseReader;
		7151	friend OMPMappableExprListClause;
		7152	friend OMPVarListClause;
		7153	friend TrailingObjects;
		7154
		7155	/// Build clause with number of variables \a NumVars.
		7156	///
		7157	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7158	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7159	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7160	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7161	/// NumVars: number of expressions listed in this clause; 2)
		7162	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7163	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7164	/// NumComponents: total number of expression components in the clause.
		7165	explicit OMPUseDevicePtrClause(const OMPVarListLocTy &Locs,
		7166	const OMPMappableExprListSizeTy &Sizes)
		7167	: OMPMappableExprListClause(llvm::omp::OMPC_use_device_ptr, Locs, Sizes) {
		7168	}
		7169
		7170	/// Build an empty clause.
		7171	///
		7172	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7173	/// NumVars: number of expressions listed in this clause; 2)
		7174	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7175	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7176	/// NumComponents: total number of expression components in the clause.
		7177	explicit OMPUseDevicePtrClause(const OMPMappableExprListSizeTy &Sizes)
		7178	: OMPMappableExprListClause(llvm::omp::OMPC_use_device_ptr,
		7179	OMPVarListLocTy(), Sizes) {}
		7180
		7181	/// Define the sizes of each trailing object array except the last one. This
		7182	/// is required for TrailingObjects to work properly.
		7183	size_t numTrailingObjects(OverloadToken<Expr *>) const {
		7184	return 3 * varlist_size();
		7185	}
		7186	size_t numTrailingObjects(OverloadToken<ValueDecl *>) const {
		7187	return getUniqueDeclarationsNum();
		7188	}
		7189	size_t numTrailingObjects(OverloadToken<unsigned>) const {
		7190	return getUniqueDeclarationsNum() + getTotalComponentListNum();
		7191	}
		7192
		7193	/// Sets the list of references to private copies with initializers for new
		7194	/// private variables.
		7195	/// \param VL List of references.
		7196	void setPrivateCopies(ArrayRef<Expr *> VL);
		7197
		7198	/// Gets the list of references to private copies with initializers for new
		7199	/// private variables.
		7200	MutableArrayRef<Expr *> getPrivateCopies() {
		7201	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		7202	}
		7203	ArrayRef<const Expr *> getPrivateCopies() const {
		7204	return llvm::ArrayRef(varlist_end(), varlist_size());
		7205	}
		7206
		7207	/// Sets the list of references to initializer variables for new private
		7208	/// variables.
		7209	/// \param VL List of references.
		7210	void setInits(ArrayRef<Expr *> VL);
		7211
		7212	/// Gets the list of references to initializer variables for new private
		7213	/// variables.
		7214	MutableArrayRef<Expr *> getInits() {
		7215	return MutableArrayRef<Expr *>(getPrivateCopies().end(), varlist_size());
		7216	}
		7217	ArrayRef<const Expr *> getInits() const {
		7218	return llvm::ArrayRef(getPrivateCopies().end(), varlist_size());
		7219	}
		7220
		7221	public:
		7222	/// Creates clause with a list of variables \a Vars.
		7223	///
		7224	/// \param C AST context.
		7225	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7226	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7227	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7228	/// \param Vars The original expression used in the clause.
		7229	/// \param PrivateVars Expressions referring to private copies.
		7230	/// \param Inits Expressions referring to private copy initializers.
		7231	/// \param Declarations Declarations used in the clause.
		7232	/// \param ComponentLists Component lists used in the clause.
		7233	static OMPUseDevicePtrClause *
		7234	Create(const ASTContext &C, const OMPVarListLocTy &Locs,
		7235	ArrayRef<Expr > Vars, ArrayRef<Expr > PrivateVars,
		7236	ArrayRef<Expr > Inits, ArrayRef<ValueDecl > Declarations,
		7237	MappableExprComponentListsRef ComponentLists);
		7238
		7239	/// Creates an empty clause with the place for \a NumVars variables.
		7240	///
		7241	/// \param C AST context.
		7242	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7243	/// NumVars: number of expressions listed in this clause; 2)
		7244	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7245	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7246	/// NumComponents: total number of expression components in the clause.
		7247	static OMPUseDevicePtrClause *
		7248	CreateEmpty(const ASTContext &C, const OMPMappableExprListSizeTy &Sizes);
		7249
		7250	using private_copies_iterator = MutableArrayRef<Expr *>::iterator;
		7251	using private_copies_const_iterator = ArrayRef<const Expr *>::iterator;
		7252	using private_copies_range = llvm::iterator_range<private_copies_iterator>;
		7253	using private_copies_const_range =
		7254	llvm::iterator_range<private_copies_const_iterator>;
		7255
		7256	private_copies_range private_copies() {
		7257	return private_copies_range(getPrivateCopies().begin(),
		7258	getPrivateCopies().end());
		7259	}
		7260
		7261	private_copies_const_range private_copies() const {
		7262	return private_copies_const_range(getPrivateCopies().begin(),
		7263	getPrivateCopies().end());
		7264	}
		7265
		7266	using inits_iterator = MutableArrayRef<Expr *>::iterator;
		7267	using inits_const_iterator = ArrayRef<const Expr *>::iterator;
		7268	using inits_range = llvm::iterator_range<inits_iterator>;
		7269	using inits_const_range = llvm::iterator_range<inits_const_iterator>;
		7270
		7271	inits_range inits() {
		7272	return inits_range(getInits().begin(), getInits().end());
		7273	}
		7274
		7275	inits_const_range inits() const {
		7276	return inits_const_range(getInits().begin(), getInits().end());
		7277	}
		7278
		7279	child_range children() {
		7280	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		7281	reinterpret_cast<Stmt **>(varlist_end()));
		7282	}
		7283
		7284	const_child_range children() const {
		7285	auto Children = const_cast<OMPUseDevicePtrClause *>(this)->children();
		7286	return const_child_range(Children.begin(), Children.end());
		7287	}
		7288
		7289	child_range used_children() {
		7290	return child_range(child_iterator(), child_iterator());
		7291	}
		7292	const_child_range used_children() const {
		7293	return const_child_range(const_child_iterator(), const_child_iterator());
		7294	}
		7295
		7296	static bool classof(const OMPClause *T) {
		7297	return T->getClauseKind() == llvm::omp::OMPC_use_device_ptr;
		7298	}
		7299	};
		7300
		7301	/// This represents clause 'use_device_addr' in the '#pragma omp ...'
		7302	/// directives.
		7303	///
		7304	/// \code
		7305	/// #pragma omp target data use_device_addr(a,b)
		7306	/// \endcode
		7307	/// In this example directive '#pragma omp target data' has clause
		7308	/// 'use_device_addr' with the variables 'a' and 'b'.
		7309	class OMPUseDeviceAddrClause final
		7310	: public OMPMappableExprListClause<OMPUseDeviceAddrClause>,
		7311	private llvm::TrailingObjects<
		7312	OMPUseDeviceAddrClause, Expr , ValueDecl , unsigned,
		7313	OMPClauseMappableExprCommon::MappableComponent> {
		7314	friend class OMPClauseReader;
		7315	friend OMPMappableExprListClause;
		7316	friend OMPVarListClause;
		7317	friend TrailingObjects;
		7318
		7319	/// Build clause with number of variables \a NumVars.
		7320	///
		7321	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7322	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7323	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7324	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7325	/// NumVars: number of expressions listed in this clause; 2)
		7326	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7327	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7328	/// NumComponents: total number of expression components in the clause.
		7329	explicit OMPUseDeviceAddrClause(const OMPVarListLocTy &Locs,
		7330	const OMPMappableExprListSizeTy &Sizes)
		7331	: OMPMappableExprListClause(llvm::omp::OMPC_use_device_addr, Locs,
		7332	Sizes) {}
		7333
		7334	/// Build an empty clause.
		7335	///
		7336	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7337	/// NumVars: number of expressions listed in this clause; 2)
		7338	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7339	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7340	/// NumComponents: total number of expression components in the clause.
		7341	explicit OMPUseDeviceAddrClause(const OMPMappableExprListSizeTy &Sizes)
		7342	: OMPMappableExprListClause(llvm::omp::OMPC_use_device_addr,
		7343	OMPVarListLocTy(), Sizes) {}
		7344
		7345	/// Define the sizes of each trailing object array except the last one. This
		7346	/// is required for TrailingObjects to work properly.
		7347	size_t numTrailingObjects(OverloadToken<Expr *>) const {
		7348	return varlist_size();
		7349	}
		7350	size_t numTrailingObjects(OverloadToken<ValueDecl *>) const {
		7351	return getUniqueDeclarationsNum();
		7352	}
		7353	size_t numTrailingObjects(OverloadToken<unsigned>) const {
		7354	return getUniqueDeclarationsNum() + getTotalComponentListNum();
		7355	}
		7356
		7357	public:
		7358	/// Creates clause with a list of variables \a Vars.
		7359	///
		7360	/// \param C AST context.
		7361	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7362	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7363	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7364	/// \param Vars The original expression used in the clause.
		7365	/// \param Declarations Declarations used in the clause.
		7366	/// \param ComponentLists Component lists used in the clause.
		7367	static OMPUseDeviceAddrClause *
		7368	Create(const ASTContext &C, const OMPVarListLocTy &Locs,
		7369	ArrayRef<Expr > Vars, ArrayRef<ValueDecl > Declarations,
		7370	MappableExprComponentListsRef ComponentLists);
		7371
		7372	/// Creates an empty clause with the place for \a NumVars variables.
		7373	///
		7374	/// \param C AST context.
		7375	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7376	/// NumVars: number of expressions listed in this clause; 2)
		7377	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7378	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7379	/// NumComponents: total number of expression components in the clause.
		7380	static OMPUseDeviceAddrClause *
		7381	CreateEmpty(const ASTContext &C, const OMPMappableExprListSizeTy &Sizes);
		7382
		7383	child_range children() {
		7384	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		7385	reinterpret_cast<Stmt **>(varlist_end()));
		7386	}
		7387
		7388	const_child_range children() const {
		7389	auto Children = const_cast<OMPUseDeviceAddrClause *>(this)->children();
		7390	return const_child_range(Children.begin(), Children.end());
		7391	}
		7392
		7393	child_range used_children() {
		7394	return child_range(child_iterator(), child_iterator());
		7395	}
		7396	const_child_range used_children() const {
		7397	return const_child_range(const_child_iterator(), const_child_iterator());
		7398	}
		7399
		7400	static bool classof(const OMPClause *T) {
		7401	return T->getClauseKind() == llvm::omp::OMPC_use_device_addr;
		7402	}
		7403	};
		7404
		7405	/// This represents clause 'is_device_ptr' in the '#pragma omp ...'
		7406	/// directives.
		7407	///
		7408	/// \code
		7409	/// #pragma omp target is_device_ptr(a,b)
		7410	/// \endcode
		7411	/// In this example directive '#pragma omp target' has clause
		7412	/// 'is_device_ptr' with the variables 'a' and 'b'.
		7413	class OMPIsDevicePtrClause final
		7414	: public OMPMappableExprListClause<OMPIsDevicePtrClause>,
		7415	private llvm::TrailingObjects<
		7416	OMPIsDevicePtrClause, Expr , ValueDecl , unsigned,
		7417	OMPClauseMappableExprCommon::MappableComponent> {
		7418	friend class OMPClauseReader;
		7419	friend OMPMappableExprListClause;
		7420	friend OMPVarListClause;
		7421	friend TrailingObjects;
		7422
		7423	/// Build clause with number of variables \a NumVars.
		7424	///
		7425	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7426	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7427	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7428	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7429	/// NumVars: number of expressions listed in this clause; 2)
		7430	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7431	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7432	/// NumComponents: total number of expression components in the clause.
		7433	explicit OMPIsDevicePtrClause(const OMPVarListLocTy &Locs,
		7434	const OMPMappableExprListSizeTy &Sizes)
		7435	: OMPMappableExprListClause(llvm::omp::OMPC_is_device_ptr, Locs, Sizes) {}
		7436
		7437	/// Build an empty clause.
		7438	///
		7439	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7440	/// NumVars: number of expressions listed in this clause; 2)
		7441	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7442	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7443	/// NumComponents: total number of expression components in the clause.
		7444	explicit OMPIsDevicePtrClause(const OMPMappableExprListSizeTy &Sizes)
		7445	: OMPMappableExprListClause(llvm::omp::OMPC_is_device_ptr,
		7446	OMPVarListLocTy(), Sizes) {}
		7447
		7448	/// Define the sizes of each trailing object array except the last one. This
		7449	/// is required for TrailingObjects to work properly.
		7450	size_t numTrailingObjects(OverloadToken<Expr *>) const {
		7451	return varlist_size();
		7452	}
		7453	size_t numTrailingObjects(OverloadToken<ValueDecl *>) const {
		7454	return getUniqueDeclarationsNum();
		7455	}
		7456	size_t numTrailingObjects(OverloadToken<unsigned>) const {
		7457	return getUniqueDeclarationsNum() + getTotalComponentListNum();
		7458	}
		7459
		7460	public:
		7461	/// Creates clause with a list of variables \a Vars.
		7462	///
		7463	/// \param C AST context.
		7464	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7465	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7466	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7467	/// \param Vars The original expression used in the clause.
		7468	/// \param Declarations Declarations used in the clause.
		7469	/// \param ComponentLists Component lists used in the clause.
		7470	static OMPIsDevicePtrClause *
		7471	Create(const ASTContext &C, const OMPVarListLocTy &Locs,
		7472	ArrayRef<Expr > Vars, ArrayRef<ValueDecl > Declarations,
		7473	MappableExprComponentListsRef ComponentLists);
		7474
		7475	/// Creates an empty clause with the place for \a NumVars variables.
		7476	///
		7477	/// \param C AST context.
		7478	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7479	/// NumVars: number of expressions listed in this clause; 2)
		7480	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7481	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7482	/// NumComponents: total number of expression components in the clause.
		7483	static OMPIsDevicePtrClause *
		7484	CreateEmpty(const ASTContext &C, const OMPMappableExprListSizeTy &Sizes);
		7485
		7486	child_range children() {
		7487	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		7488	reinterpret_cast<Stmt **>(varlist_end()));
		7489	}
		7490
		7491	const_child_range children() const {
		7492	auto Children = const_cast<OMPIsDevicePtrClause *>(this)->children();
		7493	return const_child_range(Children.begin(), Children.end());
		7494	}
		7495
		7496	child_range used_children() {
		7497	return child_range(child_iterator(), child_iterator());
		7498	}
		7499	const_child_range used_children() const {
		7500	return const_child_range(const_child_iterator(), const_child_iterator());
		7501	}
		7502
		7503	static bool classof(const OMPClause *T) {
		7504	return T->getClauseKind() == llvm::omp::OMPC_is_device_ptr;
		7505	}
		7506	};
		7507
		7508	/// This represents clause 'has_device_ptr' in the '#pragma omp ...'
		7509	/// directives.
		7510	///
		7511	/// \code
		7512	/// #pragma omp target has_device_addr(a,b)
		7513	/// \endcode
		7514	/// In this example directive '#pragma omp target' has clause
		7515	/// 'has_device_ptr' with the variables 'a' and 'b'.
		7516	class OMPHasDeviceAddrClause final
		7517	: public OMPMappableExprListClause<OMPHasDeviceAddrClause>,
		7518	private llvm::TrailingObjects<
		7519	OMPHasDeviceAddrClause, Expr , ValueDecl , unsigned,
		7520	OMPClauseMappableExprCommon::MappableComponent> {
		7521	friend class OMPClauseReader;
		7522	friend OMPMappableExprListClause;
		7523	friend OMPVarListClause;
		7524	friend TrailingObjects;
		7525
		7526	/// Build clause with number of variables \a NumVars.
		7527	///
		7528	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7529	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7530	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7531	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7532	/// NumVars: number of expressions listed in this clause; 2)
		7533	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7534	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7535	/// NumComponents: total number of expression components in the clause.
		7536	explicit OMPHasDeviceAddrClause(const OMPVarListLocTy &Locs,
		7537	const OMPMappableExprListSizeTy &Sizes)
		7538	: OMPMappableExprListClause(llvm::omp::OMPC_has_device_addr, Locs,
		7539	Sizes) {}
		7540
		7541	/// Build an empty clause.
		7542	///
		7543	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7544	/// NumVars: number of expressions listed in this clause; 2)
		7545	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7546	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7547	/// NumComponents: total number of expression components in the clause.
		7548	explicit OMPHasDeviceAddrClause(const OMPMappableExprListSizeTy &Sizes)
		7549	: OMPMappableExprListClause(llvm::omp::OMPC_has_device_addr,
		7550	OMPVarListLocTy(), Sizes) {}
		7551
		7552	/// Define the sizes of each trailing object array except the last one. This
		7553	/// is required for TrailingObjects to work properly.
		7554	size_t numTrailingObjects(OverloadToken<Expr *>) const {
		7555	return varlist_size();
		7556	}
		7557	size_t numTrailingObjects(OverloadToken<ValueDecl *>) const {
		7558	return getUniqueDeclarationsNum();
		7559	}
		7560	size_t numTrailingObjects(OverloadToken<unsigned>) const {
		7561	return getUniqueDeclarationsNum() + getTotalComponentListNum();
		7562	}
		7563
		7564	public:
		7565	/// Creates clause with a list of variables \a Vars.
		7566	///
		7567	/// \param C AST context.
		7568	/// \param Locs Locations needed to build a mappable clause. It includes 1)
		7569	/// StartLoc: starting location of the clause (the clause keyword); 2)
		7570	/// LParenLoc: location of '('; 3) EndLoc: ending location of the clause.
		7571	/// \param Vars The original expression used in the clause.
		7572	/// \param Declarations Declarations used in the clause.
		7573	/// \param ComponentLists Component lists used in the clause.
		7574	static OMPHasDeviceAddrClause *
		7575	Create(const ASTContext &C, const OMPVarListLocTy &Locs,
		7576	ArrayRef<Expr > Vars, ArrayRef<ValueDecl > Declarations,
		7577	MappableExprComponentListsRef ComponentLists);
		7578
		7579	/// Creates an empty clause with the place for \a NumVars variables.
		7580	///
		7581	/// \param C AST context.
		7582	/// \param Sizes All required sizes to build a mappable clause. It includes 1)
		7583	/// NumVars: number of expressions listed in this clause; 2)
		7584	/// NumUniqueDeclarations: number of unique base declarations in this clause;
		7585	/// 3) NumComponentLists: number of component lists in this clause; and 4)
		7586	/// NumComponents: total number of expression components in the clause.
		7587	static OMPHasDeviceAddrClause *
		7588	CreateEmpty(const ASTContext &C, const OMPMappableExprListSizeTy &Sizes);
		7589
		7590	child_range children() {
		7591	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		7592	reinterpret_cast<Stmt **>(varlist_end()));
		7593	}
		7594
		7595	const_child_range children() const {
		7596	auto Children = const_cast<OMPHasDeviceAddrClause *>(this)->children();
		7597	return const_child_range(Children.begin(), Children.end());
		7598	}
		7599
		7600	child_range used_children() {
		7601	return child_range(child_iterator(), child_iterator());
		7602	}
		7603	const_child_range used_children() const {
		7604	return const_child_range(const_child_iterator(), const_child_iterator());
		7605	}
		7606
		7607	static bool classof(const OMPClause *T) {
		7608	return T->getClauseKind() == llvm::omp::OMPC_has_device_addr;
		7609	}
		7610	};
		7611
		7612	/// This represents clause 'nontemporal' in the '#pragma omp ...' directives.
		7613	///
		7614	/// \code
		7615	/// #pragma omp simd nontemporal(a)
		7616	/// \endcode
		7617	/// In this example directive '#pragma omp simd' has clause 'nontemporal' for
		7618	/// the variable 'a'.
		7619	class OMPNontemporalClause final
		7620	: public OMPVarListClause<OMPNontemporalClause>,
		7621	private llvm::TrailingObjects<OMPNontemporalClause, Expr *> {
		7622	friend class OMPClauseReader;
		7623	friend OMPVarListClause;
		7624	friend TrailingObjects;
		7625
		7626	/// Build clause with number of variables \a N.
		7627	///
		7628	/// \param StartLoc Starting location of the clause.
		7629	/// \param LParenLoc Location of '('.
		7630	/// \param EndLoc Ending location of the clause.
		7631	/// \param N Number of the variables in the clause.
		7632	OMPNontemporalClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		7633	SourceLocation EndLoc, unsigned N)
		7634	: OMPVarListClause<OMPNontemporalClause>(llvm::omp::OMPC_nontemporal,
		7635	StartLoc, LParenLoc, EndLoc, N) {
		7636	}
		7637
		7638	/// Build an empty clause.
		7639	///
		7640	/// \param N Number of variables.
		7641	explicit OMPNontemporalClause(unsigned N)
		7642	: OMPVarListClause<OMPNontemporalClause>(
		7643	llvm::omp::OMPC_nontemporal, SourceLocation(), SourceLocation(),
		7644	SourceLocation(), N) {}
		7645
		7646	/// Get the list of privatied copies if the member expression was captured by
		7647	/// one of the privatization clauses.
		7648	MutableArrayRef<Expr *> getPrivateRefs() {
		7649	return MutableArrayRef<Expr *>(varlist_end(), varlist_size());
		7650	}
		7651	ArrayRef<const Expr *> getPrivateRefs() const {
		7652	return llvm::ArrayRef(varlist_end(), varlist_size());
		7653	}
		7654
		7655	public:
		7656	/// Creates clause with a list of variables \a VL.
		7657	///
		7658	/// \param C AST context.
		7659	/// \param StartLoc Starting location of the clause.
		7660	/// \param LParenLoc Location of '('.
		7661	/// \param EndLoc Ending location of the clause.
		7662	/// \param VL List of references to the variables.
		7663	static OMPNontemporalClause *
		7664	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		7665	SourceLocation EndLoc, ArrayRef<Expr *> VL);
		7666
		7667	/// Creates an empty clause with the place for \a N variables.
		7668	///
		7669	/// \param C AST context.
		7670	/// \param N The number of variables.
		7671	static OMPNontemporalClause *CreateEmpty(const ASTContext &C, unsigned N);
		7672
		7673	/// Sets the list of references to private copies created in private clauses.
		7674	/// \param VL List of references.
		7675	void setPrivateRefs(ArrayRef<Expr *> VL);
		7676
		7677	child_range children() {
		7678	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		7679	reinterpret_cast<Stmt **>(varlist_end()));
		7680	}
		7681
		7682	const_child_range children() const {
		7683	auto Children = const_cast<OMPNontemporalClause *>(this)->children();
		7684	return const_child_range(Children.begin(), Children.end());
		7685	}
		7686
		7687	child_range private_refs() {
		7688	return child_range(reinterpret_cast<Stmt **>(getPrivateRefs().begin()),
		7689	reinterpret_cast<Stmt **>(getPrivateRefs().end()));
		7690	}
		7691
		7692	const_child_range private_refs() const {
		7693	auto Children = const_cast<OMPNontemporalClause *>(this)->private_refs();
		7694	return const_child_range(Children.begin(), Children.end());
		7695	}
		7696
		7697	child_range used_children() {
		7698	return child_range(child_iterator(), child_iterator());
		7699	}
		7700	const_child_range used_children() const {
		7701	return const_child_range(const_child_iterator(), const_child_iterator());
		7702	}
		7703
		7704	static bool classof(const OMPClause *T) {
		7705	return T->getClauseKind() == llvm::omp::OMPC_nontemporal;
		7706	}
		7707	};
		7708
		7709	/// This represents 'order' clause in the '#pragma omp ...' directive.
		7710	///
		7711	/// \code
		7712	/// #pragma omp simd order(concurrent)
		7713	/// \endcode
		7714	/// In this example directive '#pragma omp parallel' has simple 'order'
		7715	/// clause with kind 'concurrent'.
		7716	class OMPOrderClause final : public OMPClause {
		7717	friend class OMPClauseReader;
		7718
		7719	/// Location of '('.
		7720	SourceLocation LParenLoc;
		7721
		7722	/// A kind of the 'order' clause.
		7723	OpenMPOrderClauseKind Kind = OMPC_ORDER_unknown;
		7724
		7725	/// Start location of the kind in source code.
		7726	SourceLocation KindKwLoc;
		7727
		7728	/// A modifier for order clause
		7729	OpenMPOrderClauseModifier Modifier = OMPC_ORDER_MODIFIER_unknown;
		7730
		7731	/// Start location of the modifier in source code.
		7732	SourceLocation ModifierKwLoc;
		7733
		7734	/// Set kind of the clause.
		7735	///
		7736	/// \param K Argument of clause.
		7737	void setKind(OpenMPOrderClauseKind K) { Kind = K; }
		7738
		7739	/// Set argument location.
		7740	///
		7741	/// \param KLoc Argument location.
		7742	void setKindKwLoc(SourceLocation KLoc) { KindKwLoc = KLoc; }
		7743
		7744	/// Set modifier of the clause.
		7745	///
		7746	/// \param M Argument of clause.
		7747	void setModifier(OpenMPOrderClauseModifier M) { Modifier = M; }
		7748
		7749	/// Set modifier location.
		7750	///
		7751	/// \param MLoc Modifier keyword location.
		7752	void setModifierKwLoc(SourceLocation MLoc) { ModifierKwLoc = MLoc; }
		7753
		7754	public:
		7755	/// Build 'order' clause with argument \p A ('concurrent').
		7756	///
		7757	/// \param A Argument of the clause ('concurrent').
		7758	/// \param ALoc Starting location of the argument.
		7759	/// \param StartLoc Starting location of the clause.
		7760	/// \param LParenLoc Location of '('.
		7761	/// \param EndLoc Ending location of the clause.
		7762	/// \param Modifier The modifier applied to 'order' clause.
		7763	/// \param MLoc Location of the modifier
		7764	OMPOrderClause(OpenMPOrderClauseKind A, SourceLocation ALoc,
		7765	SourceLocation StartLoc, SourceLocation LParenLoc,
		7766	SourceLocation EndLoc, OpenMPOrderClauseModifier M,
		7767	SourceLocation MLoc)
		7768	: OMPClause(llvm::omp::OMPC_order, StartLoc, EndLoc),
		7769	LParenLoc(LParenLoc), Kind(A), KindKwLoc(ALoc), Modifier(M),
		7770	ModifierKwLoc(MLoc) {}
		7771
		7772	/// Build an empty clause.
		7773	OMPOrderClause()
		7774	: OMPClause(llvm::omp::OMPC_order, SourceLocation(), SourceLocation()) {}
		7775
		7776	/// Sets the location of '('.
		7777	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		7778
		7779	/// Returns the location of '('.
		7780	SourceLocation getLParenLoc() const { return LParenLoc; }
		7781
		7782	/// Returns kind of the clause.
		7783	OpenMPOrderClauseKind getKind() const { return Kind; }
		7784
		7785	/// Returns location of clause kind.
		7786	SourceLocation getKindKwLoc() const { return KindKwLoc; }
		7787
		7788	/// Returns Modifier of the clause.
		7789	OpenMPOrderClauseModifier getModifier() const { return Modifier; }
		7790
		7791	/// Returns location of clause modifier.
		7792	SourceLocation getModifierKwLoc() const { return ModifierKwLoc; }
		7793
		7794	child_range children() {
		7795	return child_range(child_iterator(), child_iterator());
		7796	}
		7797
		7798	const_child_range children() const {
		7799	return const_child_range(const_child_iterator(), const_child_iterator());
		7800	}
		7801
		7802	child_range used_children() {
		7803	return child_range(child_iterator(), child_iterator());
		7804	}
		7805	const_child_range used_children() const {
		7806	return const_child_range(const_child_iterator(), const_child_iterator());
		7807	}
		7808
		7809	static bool classof(const OMPClause *T) {
		7810	return T->getClauseKind() == llvm::omp::OMPC_order;
		7811	}
		7812	};
		7813
		7814	/// This represents the 'init' clause in '#pragma omp ...' directives.
		7815	///
		7816	/// \code
		7817	/// #pragma omp interop init(target:obj)
		7818	/// \endcode
		7819	class OMPInitClause final
		7820	: public OMPVarListClause<OMPInitClause>,
		7821	private llvm::TrailingObjects<OMPInitClause, Expr *> {
		7822	friend class OMPClauseReader;
		7823	friend OMPVarListClause;
		7824	friend TrailingObjects;
		7825
		7826	/// Location of interop variable.
		7827	SourceLocation VarLoc;
		7828
		7829	bool IsTarget = false;
		7830	bool IsTargetSync = false;
		7831
		7832	void setInteropVar(Expr *E) { varlist_begin()[0] = E; }
		7833
		7834	void setIsTarget(bool V) { IsTarget = V; }
		7835
		7836	void setIsTargetSync(bool V) { IsTargetSync = V; }
		7837
		7838	/// Sets the location of the interop variable.
		7839	void setVarLoc(SourceLocation Loc) { VarLoc = Loc; }
		7840
		7841	/// Build 'init' clause.
		7842	///
		7843	/// \param IsTarget Uses the 'target' interop-type.
		7844	/// \param IsTargetSync Uses the 'targetsync' interop-type.
		7845	/// \param StartLoc Starting location of the clause.
		7846	/// \param LParenLoc Location of '('.
		7847	/// \param VarLoc Location of the interop variable.
		7848	/// \param EndLoc Ending location of the clause.
		7849	/// \param N Number of expressions.
		7850	OMPInitClause(bool IsTarget, bool IsTargetSync, SourceLocation StartLoc,
		7851	SourceLocation LParenLoc, SourceLocation VarLoc,
		7852	SourceLocation EndLoc, unsigned N)
		7853	: OMPVarListClause<OMPInitClause>(llvm::omp::OMPC_init, StartLoc,
		7854	LParenLoc, EndLoc, N),
		7855	VarLoc(VarLoc), IsTarget(IsTarget), IsTargetSync(IsTargetSync) {}
		7856
		7857	/// Build an empty clause.
		7858	OMPInitClause(unsigned N)
		7859	: OMPVarListClause<OMPInitClause>(llvm::omp::OMPC_init, SourceLocation(),
		7860	SourceLocation(), SourceLocation(), N) {
		7861	}
		7862
		7863	public:
		7864	/// Creates a fully specified clause.
		7865	///
		7866	/// \param C AST context.
		7867	/// \param InteropVar The interop variable.
		7868	/// \param InteropInfo The interop-type and prefer_type list.
		7869	/// \param StartLoc Starting location of the clause.
		7870	/// \param LParenLoc Location of '('.
		7871	/// \param VarLoc Location of the interop variable.
		7872	/// \param EndLoc Ending location of the clause.
		7873	static OMPInitClause Create(const ASTContext &C, Expr InteropVar,
		7874	OMPInteropInfo &InteropInfo,
		7875	SourceLocation StartLoc,
		7876	SourceLocation LParenLoc, SourceLocation VarLoc,
		7877	SourceLocation EndLoc);
		7878
		7879	/// Creates an empty clause with \a N expressions.
		7880	///
		7881	/// \param C AST context.
		7882	/// \param N Number of expression items.
		7883	static OMPInitClause *CreateEmpty(const ASTContext &C, unsigned N);
		7884
		7885	/// Returns the location of the interop variable.
		7886	SourceLocation getVarLoc() const { return VarLoc; }
		7887
		7888	/// Returns the interop variable.
		7889	Expr *getInteropVar() { return varlist_begin()[0]; }
		7890	const Expr *getInteropVar() const { return varlist_begin()[0]; }
		7891
		7892	/// Returns true is interop-type 'target' is used.
		7893	bool getIsTarget() const { return IsTarget; }
		7894
		7895	/// Returns true is interop-type 'targetsync' is used.
		7896	bool getIsTargetSync() const { return IsTargetSync; }
		7897
		7898	child_range children() {
		7899	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		7900	reinterpret_cast<Stmt **>(varlist_end()));
		7901	}
		7902
		7903	const_child_range children() const {
		7904	auto Children = const_cast<OMPInitClause *>(this)->children();
		7905	return const_child_range(Children.begin(), Children.end());
		7906	}
		7907
		7908	child_range used_children() {
		7909	return child_range(child_iterator(), child_iterator());
		7910	}
		7911	const_child_range used_children() const {
		7912	return const_child_range(const_child_iterator(), const_child_iterator());
		7913	}
		7914
		7915	using prefs_iterator = MutableArrayRef<Expr *>::iterator;
		7916	using const_prefs_iterator = ArrayRef<const Expr *>::iterator;
		7917	using prefs_range = llvm::iterator_range<prefs_iterator>;
		7918	using const_prefs_range = llvm::iterator_range<const_prefs_iterator>;
		7919
		7920	prefs_range prefs() {
		7921	return prefs_range(reinterpret_cast<Expr **>(std::next(varlist_begin())),
		7922	reinterpret_cast<Expr **>(varlist_end()));
		7923	}
		7924
		7925	const_prefs_range prefs() const {
		7926	auto Prefs = const_cast<OMPInitClause *>(this)->prefs();
		7927	return const_prefs_range(Prefs.begin(), Prefs.end());
		7928	}
		7929
		7930	static bool classof(const OMPClause *T) {
		7931	return T->getClauseKind() == llvm::omp::OMPC_init;
		7932	}
		7933	};
		7934
		7935	/// This represents the 'use' clause in '#pragma omp ...' directives.
		7936	///
		7937	/// \code
		7938	/// #pragma omp interop use(obj)
		7939	/// \endcode
		7940	class OMPUseClause final : public OMPClause {
		7941	friend class OMPClauseReader;
		7942
		7943	/// Location of '('.
		7944	SourceLocation LParenLoc;
		7945
		7946	/// Location of interop variable.
		7947	SourceLocation VarLoc;
		7948
		7949	/// The interop variable.
		7950	Stmt *InteropVar = nullptr;
		7951
		7952	/// Set the interop variable.
		7953	void setInteropVar(Expr *E) { InteropVar = E; }
		7954
		7955	/// Sets the location of '('.
		7956	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		7957
		7958	/// Sets the location of the interop variable.
		7959	void setVarLoc(SourceLocation Loc) { VarLoc = Loc; }
		7960
		7961	public:
		7962	/// Build 'use' clause with and interop variable expression \a InteropVar.
		7963	///
		7964	/// \param InteropVar The interop variable.
		7965	/// \param StartLoc Starting location of the clause.
		7966	/// \param LParenLoc Location of '('.
		7967	/// \param VarLoc Location of the interop variable.
		7968	/// \param EndLoc Ending location of the clause.
		7969	OMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
		7970	SourceLocation LParenLoc, SourceLocation VarLoc,
		7971	SourceLocation EndLoc)
		7972	: OMPClause(llvm::omp::OMPC_use, StartLoc, EndLoc), LParenLoc(LParenLoc),
		7973	VarLoc(VarLoc), InteropVar(InteropVar) {}
		7974
		7975	/// Build an empty clause.
		7976	OMPUseClause()
		7977	: OMPClause(llvm::omp::OMPC_use, SourceLocation(), SourceLocation()) {}
		7978
		7979	/// Returns the location of '('.
		7980	SourceLocation getLParenLoc() const { return LParenLoc; }
		7981
		7982	/// Returns the location of the interop variable.
		7983	SourceLocation getVarLoc() const { return VarLoc; }
		7984
		7985	/// Returns the interop variable.
		7986	Expr *getInteropVar() const { return cast<Expr>(InteropVar); }
		7987
		7988	child_range children() { return child_range(&InteropVar, &InteropVar + 1); }
		7989
		7990	const_child_range children() const {
		7991	return const_child_range(&InteropVar, &InteropVar + 1);
		7992	}
		7993
		7994	child_range used_children() {
		7995	return child_range(child_iterator(), child_iterator());
		7996	}
		7997	const_child_range used_children() const {
		7998	return const_child_range(const_child_iterator(), const_child_iterator());
		7999	}
		8000
		8001	static bool classof(const OMPClause *T) {
		8002	return T->getClauseKind() == llvm::omp::OMPC_use;
		8003	}
		8004	};
		8005
		8006	/// This represents 'destroy' clause in the '#pragma omp depobj'
		8007	/// directive or the '#pragma omp interop' directive..
		8008	///
		8009	/// \code
		8010	/// #pragma omp depobj(a) destroy
		8011	/// #pragma omp interop destroy(obj)
		8012	/// \endcode
		8013	/// In these examples directive '#pragma omp depobj' and '#pragma omp interop'
		8014	/// have a 'destroy' clause. The 'interop' directive includes an object.
		8015	class OMPDestroyClause final : public OMPClause {
		8016	friend class OMPClauseReader;
		8017
		8018	/// Location of '('.
		8019	SourceLocation LParenLoc;
		8020
		8021	/// Location of interop variable.
		8022	SourceLocation VarLoc;
		8023
		8024	/// The interop variable.
		8025	Stmt *InteropVar = nullptr;
		8026
		8027	/// Set the interop variable.
		8028	void setInteropVar(Expr *E) { InteropVar = E; }
		8029
		8030	/// Sets the location of '('.
		8031	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		8032
		8033	/// Sets the location of the interop variable.
		8034	void setVarLoc(SourceLocation Loc) { VarLoc = Loc; }
		8035
		8036	public:
		8037	/// Build 'destroy' clause with an interop variable expression \a InteropVar.
		8038	///
		8039	/// \param InteropVar The interop variable.
		8040	/// \param StartLoc Starting location of the clause.
		8041	/// \param LParenLoc Location of '('.
		8042	/// \param VarLoc Location of the interop variable.
		8043	/// \param EndLoc Ending location of the clause.
		8044	OMPDestroyClause(Expr *InteropVar, SourceLocation StartLoc,
		8045	SourceLocation LParenLoc, SourceLocation VarLoc,
		8046	SourceLocation EndLoc)
		8047	: OMPClause(llvm::omp::OMPC_destroy, StartLoc, EndLoc),
		8048	LParenLoc(LParenLoc), VarLoc(VarLoc), InteropVar(InteropVar) {}
		8049
		8050	/// Build 'destroy' clause.
		8051	///
		8052	/// \param StartLoc Starting location of the clause.
		8053	/// \param EndLoc Ending location of the clause.
		8054	OMPDestroyClause(SourceLocation StartLoc, SourceLocation EndLoc)
		8055	: OMPClause(llvm::omp::OMPC_destroy, StartLoc, EndLoc) {}
		8056
		8057	/// Build an empty clause.
		8058	OMPDestroyClause()
		8059	: OMPClause(llvm::omp::OMPC_destroy, SourceLocation(), SourceLocation()) {
		8060	}
		8061
		8062	/// Returns the location of '('.
		8063	SourceLocation getLParenLoc() const { return LParenLoc; }
		8064
		8065	/// Returns the location of the interop variable.
		8066	SourceLocation getVarLoc() const { return VarLoc; }
		8067
		8068	/// Returns the interop variable.
		8069	Expr *getInteropVar() const { return cast_or_null<Expr>(InteropVar); }
		8070
		8071	child_range children() {
		8072	if (InteropVar)
		8073	return child_range(&InteropVar, &InteropVar + 1);
		8074	return child_range(child_iterator(), child_iterator());
		8075	}
		8076
		8077	const_child_range children() const {
		8078	if (InteropVar)
		8079	return const_child_range(&InteropVar, &InteropVar + 1);
		8080	return const_child_range(const_child_iterator(), const_child_iterator());
		8081	}
		8082
		8083	child_range used_children() {
		8084	return child_range(child_iterator(), child_iterator());
		8085	}
		8086	const_child_range used_children() const {
		8087	return const_child_range(const_child_iterator(), const_child_iterator());
		8088	}
		8089
		8090	static bool classof(const OMPClause *T) {
		8091	return T->getClauseKind() == llvm::omp::OMPC_destroy;
		8092	}
		8093	};
		8094
		8095	/// This represents 'novariants' clause in the '#pragma omp ...' directive.
		8096	///
		8097	/// \code
		8098	/// #pragma omp dispatch novariants(a > 5)
		8099	/// \endcode
		8100	/// In this example directive '#pragma omp dispatch' has simple 'novariants'
		8101	/// clause with condition 'a > 5'.
		8102	class OMPNovariantsClause final
		8103	: public OMPOneStmtClause<llvm::omp::OMPC_novariants, OMPClause>,
		8104	public OMPClauseWithPreInit {
		8105	friend class OMPClauseReader;
		8106
		8107	/// Set condition.
		8108	void setCondition(Expr *Cond) { setStmt(Cond); }
		8109
		8110	public:
		8111	/// Build 'novariants' clause with condition \a Cond.
		8112	///
		8113	/// \param Cond Condition of the clause.
		8114	/// \param HelperCond Helper condition for the construct.
		8115	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		8116	/// clause must be captured.
		8117	/// \param StartLoc Starting location of the clause.
		8118	/// \param LParenLoc Location of '('.
		8119	/// \param EndLoc Ending location of the clause.
		8120	OMPNovariantsClause(Expr Cond, Stmt HelperCond,
		8121	OpenMPDirectiveKind CaptureRegion,
		8122	SourceLocation StartLoc, SourceLocation LParenLoc,
		8123	SourceLocation EndLoc)
		8124	: OMPOneStmtClause(Cond, StartLoc, LParenLoc, EndLoc),
		8125	OMPClauseWithPreInit(this) {
		8126	setPreInitStmt(HelperCond, CaptureRegion);
		8127	}
		8128
		8129	/// Build an empty clause.
		8130	OMPNovariantsClause() : OMPOneStmtClause(), OMPClauseWithPreInit(this) {}
		8131
		8132	/// Returns condition.
		8133	Expr *getCondition() const { return getStmtAs<Expr>(); }
		8134
		8135	child_range used_children();
		8136	const_child_range used_children() const {
		8137	auto Children = const_cast<OMPNovariantsClause *>(this)->used_children();
		8138	return const_child_range(Children.begin(), Children.end());
		8139	}
		8140	};
		8141
		8142	/// This represents 'nocontext' clause in the '#pragma omp ...' directive.
		8143	///
		8144	/// \code
		8145	/// #pragma omp dispatch nocontext(a > 5)
		8146	/// \endcode
		8147	/// In this example directive '#pragma omp dispatch' has simple 'nocontext'
		8148	/// clause with condition 'a > 5'.
		8149	class OMPNocontextClause final
		8150	: public OMPOneStmtClause<llvm::omp::OMPC_nocontext, OMPClause>,
		8151	public OMPClauseWithPreInit {
		8152	friend class OMPClauseReader;
		8153
		8154	/// Set condition.
		8155	void setCondition(Expr *Cond) { setStmt(Cond); }
		8156
		8157	public:
		8158	/// Build 'nocontext' clause with condition \a Cond.
		8159	///
		8160	/// \param Cond Condition of the clause.
		8161	/// \param HelperCond Helper condition for the construct.
		8162	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		8163	/// clause must be captured.
		8164	/// \param StartLoc Starting location of the clause.
		8165	/// \param LParenLoc Location of '('.
		8166	/// \param EndLoc Ending location of the clause.
		8167	OMPNocontextClause(Expr Cond, Stmt HelperCond,
		8168	OpenMPDirectiveKind CaptureRegion, SourceLocation StartLoc,
		8169	SourceLocation LParenLoc, SourceLocation EndLoc)
		8170	: OMPOneStmtClause(Cond, StartLoc, LParenLoc, EndLoc),
		8171	OMPClauseWithPreInit(this) {
		8172	setPreInitStmt(HelperCond, CaptureRegion);
		8173	}
		8174
		8175	/// Build an empty clause.
		8176	OMPNocontextClause() : OMPOneStmtClause(), OMPClauseWithPreInit(this) {}
		8177
		8178	/// Returns condition.
		8179	Expr *getCondition() const { return getStmtAs<Expr>(); }
		8180
		8181	child_range used_children();
		8182	const_child_range used_children() const {
		8183	auto Children = const_cast<OMPNocontextClause *>(this)->used_children();
		8184	return const_child_range(Children.begin(), Children.end());
		8185	}
		8186	};
		8187
		8188	/// This represents 'detach' clause in the '#pragma omp task' directive.
		8189	///
		8190	/// \code
		8191	/// #pragma omp task detach(evt)
		8192	/// \endcode
		8193	/// In this example directive '#pragma omp detach' has simple 'detach' clause
		8194	/// with the variable 'evt'.
		8195	class OMPDetachClause final
		8196	: public OMPOneStmtClause<llvm::omp::OMPC_detach, OMPClause> {
		8197	friend class OMPClauseReader;
		8198
		8199	/// Set condition.
		8200	void setEventHandler(Expr *E) { setStmt(E); }
		8201
		8202	public:
		8203	/// Build 'detach' clause with event-handler \a Evt.
		8204	///
		8205	/// \param Evt Event handler expression.
		8206	/// \param StartLoc Starting location of the clause.
		8207	/// \param LParenLoc Location of '('.
		8208	/// \param EndLoc Ending location of the clause.
		8209	OMPDetachClause(Expr *Evt, SourceLocation StartLoc, SourceLocation LParenLoc,
		8210	SourceLocation EndLoc)
		8211	: OMPOneStmtClause(Evt, StartLoc, LParenLoc, EndLoc) {}
		8212
		8213	/// Build an empty clause.
		8214	OMPDetachClause() : OMPOneStmtClause() {}
		8215
		8216	/// Returns event-handler expression.
		8217	Expr *getEventHandler() const { return getStmtAs<Expr>(); }
		8218	};
		8219
		8220	/// This represents clause 'inclusive' in the '#pragma omp scan' directive.
		8221	///
		8222	/// \code
		8223	/// #pragma omp scan inclusive(a,b)
		8224	/// \endcode
		8225	/// In this example directive '#pragma omp scan' has clause 'inclusive'
		8226	/// with the variables 'a' and 'b'.
		8227	class OMPInclusiveClause final
		8228	: public OMPVarListClause<OMPInclusiveClause>,
		8229	private llvm::TrailingObjects<OMPInclusiveClause, Expr *> {
		8230	friend class OMPClauseReader;
		8231	friend OMPVarListClause;
		8232	friend TrailingObjects;
		8233
		8234	/// Build clause with number of variables \a N.
		8235	///
		8236	/// \param StartLoc Starting location of the clause.
		8237	/// \param LParenLoc Location of '('.
		8238	/// \param EndLoc Ending location of the clause.
		8239	/// \param N Number of the variables in the clause.
		8240	OMPInclusiveClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		8241	SourceLocation EndLoc, unsigned N)
		8242	: OMPVarListClause<OMPInclusiveClause>(llvm::omp::OMPC_inclusive,
		8243	StartLoc, LParenLoc, EndLoc, N) {}
		8244
		8245	/// Build an empty clause.
		8246	///
		8247	/// \param N Number of variables.
		8248	explicit OMPInclusiveClause(unsigned N)
		8249	: OMPVarListClause<OMPInclusiveClause>(llvm::omp::OMPC_inclusive,
		8250	SourceLocation(), SourceLocation(),
		8251	SourceLocation(), N) {}
		8252
		8253	public:
		8254	/// Creates clause with a list of variables \a VL.
		8255	///
		8256	/// \param C AST context.
		8257	/// \param StartLoc Starting location of the clause.
		8258	/// \param LParenLoc Location of '('.
		8259	/// \param EndLoc Ending location of the clause.
		8260	/// \param VL List of references to the original variables.
		8261	static OMPInclusiveClause *Create(const ASTContext &C,
		8262	SourceLocation StartLoc,
		8263	SourceLocation LParenLoc,
		8264	SourceLocation EndLoc, ArrayRef<Expr *> VL);
		8265
		8266	/// Creates an empty clause with the place for \a N variables.
		8267	///
		8268	/// \param C AST context.
		8269	/// \param N The number of variables.
		8270	static OMPInclusiveClause *CreateEmpty(const ASTContext &C, unsigned N);
		8271
		8272	child_range children() {
		8273	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		8274	reinterpret_cast<Stmt **>(varlist_end()));
		8275	}
		8276
		8277	const_child_range children() const {
		8278	auto Children = const_cast<OMPInclusiveClause *>(this)->children();
		8279	return const_child_range(Children.begin(), Children.end());
		8280	}
		8281
		8282	child_range used_children() {
		8283	return child_range(child_iterator(), child_iterator());
		8284	}
		8285	const_child_range used_children() const {
		8286	return const_child_range(const_child_iterator(), const_child_iterator());
		8287	}
		8288
		8289	static bool classof(const OMPClause *T) {
		8290	return T->getClauseKind() == llvm::omp::OMPC_inclusive;
		8291	}
		8292	};
		8293
		8294	/// This represents clause 'exclusive' in the '#pragma omp scan' directive.
		8295	///
		8296	/// \code
		8297	/// #pragma omp scan exclusive(a,b)
		8298	/// \endcode
		8299	/// In this example directive '#pragma omp scan' has clause 'exclusive'
		8300	/// with the variables 'a' and 'b'.
		8301	class OMPExclusiveClause final
		8302	: public OMPVarListClause<OMPExclusiveClause>,
		8303	private llvm::TrailingObjects<OMPExclusiveClause, Expr *> {
		8304	friend class OMPClauseReader;
		8305	friend OMPVarListClause;
		8306	friend TrailingObjects;
		8307
		8308	/// Build clause with number of variables \a N.
		8309	///
		8310	/// \param StartLoc Starting location of the clause.
		8311	/// \param LParenLoc Location of '('.
		8312	/// \param EndLoc Ending location of the clause.
		8313	/// \param N Number of the variables in the clause.
		8314	OMPExclusiveClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		8315	SourceLocation EndLoc, unsigned N)
		8316	: OMPVarListClause<OMPExclusiveClause>(llvm::omp::OMPC_exclusive,
		8317	StartLoc, LParenLoc, EndLoc, N) {}
		8318
		8319	/// Build an empty clause.
		8320	///
		8321	/// \param N Number of variables.
		8322	explicit OMPExclusiveClause(unsigned N)
		8323	: OMPVarListClause<OMPExclusiveClause>(llvm::omp::OMPC_exclusive,
		8324	SourceLocation(), SourceLocation(),
		8325	SourceLocation(), N) {}
		8326
		8327	public:
		8328	/// Creates clause with a list of variables \a VL.
		8329	///
		8330	/// \param C AST context.
		8331	/// \param StartLoc Starting location of the clause.
		8332	/// \param LParenLoc Location of '('.
		8333	/// \param EndLoc Ending location of the clause.
		8334	/// \param VL List of references to the original variables.
		8335	static OMPExclusiveClause *Create(const ASTContext &C,
		8336	SourceLocation StartLoc,
		8337	SourceLocation LParenLoc,
		8338	SourceLocation EndLoc, ArrayRef<Expr *> VL);
		8339
		8340	/// Creates an empty clause with the place for \a N variables.
		8341	///
		8342	/// \param C AST context.
		8343	/// \param N The number of variables.
		8344	static OMPExclusiveClause *CreateEmpty(const ASTContext &C, unsigned N);
		8345
		8346	child_range children() {
		8347	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		8348	reinterpret_cast<Stmt **>(varlist_end()));
		8349	}
		8350
		8351	const_child_range children() const {
		8352	auto Children = const_cast<OMPExclusiveClause *>(this)->children();
		8353	return const_child_range(Children.begin(), Children.end());
		8354	}
		8355
		8356	child_range used_children() {
		8357	return child_range(child_iterator(), child_iterator());
		8358	}
		8359	const_child_range used_children() const {
		8360	return const_child_range(const_child_iterator(), const_child_iterator());
		8361	}
		8362
		8363	static bool classof(const OMPClause *T) {
		8364	return T->getClauseKind() == llvm::omp::OMPC_exclusive;
		8365	}
		8366	};
		8367
		8368	/// This represents clause 'uses_allocators' in the '#pragma omp target'-based
		8369	/// directives.
		8370	///
		8371	/// \code
		8372	/// #pragma omp target uses_allocators(default_allocator, my_allocator(traits))
		8373	/// \endcode
		8374	/// In this example directive '#pragma omp target' has clause 'uses_allocators'
		8375	/// with the allocators 'default_allocator' and user-defined 'my_allocator'.
		8376	class OMPUsesAllocatorsClause final
		8377	: public OMPClause,
		8378	private llvm::TrailingObjects<OMPUsesAllocatorsClause, Expr *,
		8379	SourceLocation> {
		8380	public:
		8381	/// Data for list of allocators.
		8382	struct Data {
		8383	/// Allocator.
		8384	Expr *Allocator = nullptr;
		8385	/// Allocator traits.
		8386	Expr *AllocatorTraits = nullptr;
		8387	/// Locations of '(' and ')' symbols.
		8388	SourceLocation LParenLoc, RParenLoc;
		8389	};
		8390
		8391	private:
		8392	friend class OMPClauseReader;
		8393	friend TrailingObjects;
		8394
		8395	enum class ExprOffsets {
		8396	Allocator,
		8397	AllocatorTraits,
		8398	Total,
		8399	};
		8400
		8401	enum class ParenLocsOffsets {
		8402	LParen,
		8403	RParen,
		8404	Total,
		8405	};
		8406
		8407	/// Location of '('.
		8408	SourceLocation LParenLoc;
		8409	/// Total number of allocators in the clause.
		8410	unsigned NumOfAllocators = 0;
		8411
		8412	/// Build clause.
		8413	///
		8414	/// \param StartLoc Starting location of the clause.
		8415	/// \param LParenLoc Location of '('.
		8416	/// \param EndLoc Ending location of the clause.
		8417	/// \param N Number of allocators associated with the clause.
		8418	OMPUsesAllocatorsClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		8419	SourceLocation EndLoc, unsigned N)
		8420	: OMPClause(llvm::omp::OMPC_uses_allocators, StartLoc, EndLoc),
		8421	LParenLoc(LParenLoc), NumOfAllocators(N) {}
		8422
		8423	/// Build an empty clause.
		8424	/// \param N Number of allocators associated with the clause.
		8425	///
		8426	explicit OMPUsesAllocatorsClause(unsigned N)
		8427	: OMPClause(llvm::omp::OMPC_uses_allocators, SourceLocation(),
		8428	SourceLocation()),
		8429	NumOfAllocators(N) {}
		8430
		8431	unsigned numTrailingObjects(OverloadToken<Expr *>) const {
		8432	return NumOfAllocators * static_cast<int>(ExprOffsets::Total);
		8433	}
		8434
		8435	/// Sets the location of '('.
		8436	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		8437
		8438	/// Sets the allocators data for the clause.
		8439	void setAllocatorsData(ArrayRef<OMPUsesAllocatorsClause::Data> Data);
		8440
		8441	public:
		8442	/// Creates clause with a list of allocators \p Data.
		8443	///
		8444	/// \param C AST context.
		8445	/// \param StartLoc Starting location of the clause.
		8446	/// \param LParenLoc Location of '('.
		8447	/// \param EndLoc Ending location of the clause.
		8448	/// \param Data List of allocators.
		8449	static OMPUsesAllocatorsClause *
		8450	Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc,
		8451	SourceLocation EndLoc, ArrayRef<OMPUsesAllocatorsClause::Data> Data);
		8452
		8453	/// Creates an empty clause with the place for \p N allocators.
		8454	///
		8455	/// \param C AST context.
		8456	/// \param N The number of allocators.
		8457	static OMPUsesAllocatorsClause *CreateEmpty(const ASTContext &C, unsigned N);
		8458
		8459	/// Returns the location of '('.
		8460	SourceLocation getLParenLoc() const { return LParenLoc; }
		8461
		8462	/// Returns number of allocators associated with the clause.
		8463	unsigned getNumberOfAllocators() const { return NumOfAllocators; }
		8464
		8465	/// Returns data for the specified allocator.
		8466	OMPUsesAllocatorsClause::Data getAllocatorData(unsigned I) const;
		8467
		8468	// Iterators
		8469	child_range children() {
		8470	Stmt Begin = reinterpret_cast<Stmt >(getTrailingObjects<Expr *>());
		8471	return child_range(Begin, Begin + NumOfAllocators *
		8472	static_cast<int>(ExprOffsets::Total));
		8473	}
		8474	const_child_range children() const {
		8475	Stmt const Begin =
		8476	reinterpret_cast<Stmt const >(getTrailingObjects<Expr *>());
		8477	return const_child_range(
		8478	Begin, Begin + NumOfAllocators * static_cast<int>(ExprOffsets::Total));
		8479	}
		8480
		8481	child_range used_children() {
		8482	return child_range(child_iterator(), child_iterator());
		8483	}
		8484	const_child_range used_children() const {
		8485	return const_child_range(const_child_iterator(), const_child_iterator());
		8486	}
		8487
		8488	static bool classof(const OMPClause *T) {
		8489	return T->getClauseKind() == llvm::omp::OMPC_uses_allocators;
		8490	}
		8491	};
		8492
		8493	/// This represents clause 'affinity' in the '#pragma omp task'-based
		8494	/// directives.
		8495	///
		8496	/// \code
		8497	/// #pragma omp task affinity(iterator(i = 0:n) : ([3][n])a, b[:n], c[i])
		8498	/// \endcode
		8499	/// In this example directive '#pragma omp task' has clause 'affinity' with the
		8500	/// affinity modifer 'iterator(i = 0:n)' and locator items '([3][n])a', 'b[:n]'
		8501	/// and 'c[i]'.
		8502	class OMPAffinityClause final
		8503	: public OMPVarListClause<OMPAffinityClause>,
		8504	private llvm::TrailingObjects<OMPAffinityClause, Expr *> {
		8505	friend class OMPClauseReader;
		8506	friend OMPVarListClause;
		8507	friend TrailingObjects;
		8508
		8509	/// Location of ':' symbol.
		8510	SourceLocation ColonLoc;
		8511
		8512	/// Build clause.
		8513	///
		8514	/// \param StartLoc Starting location of the clause.
		8515	/// \param LParenLoc Location of '('.
		8516	/// \param ColonLoc Location of ':'.
		8517	/// \param EndLoc Ending location of the clause.
		8518	/// \param N Number of locators associated with the clause.
		8519	OMPAffinityClause(SourceLocation StartLoc, SourceLocation LParenLoc,
		8520	SourceLocation ColonLoc, SourceLocation EndLoc, unsigned N)
		8521	: OMPVarListClause<OMPAffinityClause>(llvm::omp::OMPC_affinity, StartLoc,
		8522	LParenLoc, EndLoc, N) {}
		8523
		8524	/// Build an empty clause.
		8525	/// \param N Number of locators associated with the clause.
		8526	///
		8527	explicit OMPAffinityClause(unsigned N)
		8528	: OMPVarListClause<OMPAffinityClause>(llvm::omp::OMPC_affinity,
		8529	SourceLocation(), SourceLocation(),
		8530	SourceLocation(), N) {}
		8531
		8532	/// Sets the affinity modifier for the clause, if any.
		8533	void setModifier(Expr *E) {
		8534	getTrailingObjects<Expr *>()[varlist_size()] = E;
		8535	}
		8536
		8537	/// Sets the location of ':' symbol.
		8538	void setColonLoc(SourceLocation Loc) { ColonLoc = Loc; }
		8539
		8540	public:
		8541	/// Creates clause with a modifier a list of locator items.
		8542	///
		8543	/// \param C AST context.
		8544	/// \param StartLoc Starting location of the clause.
		8545	/// \param LParenLoc Location of '('.
		8546	/// \param ColonLoc Location of ':'.
		8547	/// \param EndLoc Ending location of the clause.
		8548	/// \param Locators List of locator items.
		8549	static OMPAffinityClause *Create(const ASTContext &C, SourceLocation StartLoc,
		8550	SourceLocation LParenLoc,
		8551	SourceLocation ColonLoc,
		8552	SourceLocation EndLoc, Expr *Modifier,
		8553	ArrayRef<Expr *> Locators);
		8554
		8555	/// Creates an empty clause with the place for \p N locator items.
		8556	///
		8557	/// \param C AST context.
		8558	/// \param N The number of locator items.
		8559	static OMPAffinityClause *CreateEmpty(const ASTContext &C, unsigned N);
		8560
		8561	/// Gets affinity modifier.
		8562	Expr getModifier() { return getTrailingObjects<Expr >()[varlist_size()]; }
		8563	Expr *getModifier() const {
		8564	return getTrailingObjects<Expr *>()[varlist_size()];
		8565	}
		8566
		8567	/// Gets the location of ':' symbol.
		8568	SourceLocation getColonLoc() const { return ColonLoc; }
		8569
		8570	// Iterators
		8571	child_range children() {
		8572	int Offset = getModifier() ? 1 : 0;
		8573	return child_range(reinterpret_cast<Stmt **>(varlist_begin()),
		8574	reinterpret_cast<Stmt **>(varlist_end() + Offset));
		8575	}
		8576
		8577	const_child_range children() const {
		8578	auto Children = const_cast<OMPAffinityClause *>(this)->children();
		8579	return const_child_range(Children.begin(), Children.end());
		8580	}
		8581
		8582	child_range used_children() {
		8583	return child_range(child_iterator(), child_iterator());
		8584	}
		8585	const_child_range used_children() const {
		8586	return const_child_range(const_child_iterator(), const_child_iterator());
		8587	}
		8588
		8589	static bool classof(const OMPClause *T) {
		8590	return T->getClauseKind() == llvm::omp::OMPC_affinity;
		8591	}
		8592	};
		8593
		8594	/// This represents 'filter' clause in the '#pragma omp ...' directive.
		8595	///
		8596	/// \code
		8597	/// #pragma omp masked filter(tid)
		8598	/// \endcode
		8599	/// In this example directive '#pragma omp masked' has 'filter' clause with
		8600	/// thread id.
		8601	class OMPFilterClause final
		8602	: public OMPOneStmtClause<llvm::omp::OMPC_filter, OMPClause>,
		8603	public OMPClauseWithPreInit {
		8604	friend class OMPClauseReader;
		8605
		8606	/// Sets the thread identifier.
		8607	void setThreadID(Expr *TID) { setStmt(TID); }
		8608
		8609	public:
		8610	/// Build 'filter' clause with thread-id \a ThreadID.
		8611	///
		8612	/// \param ThreadID Thread identifier.
		8613	/// \param HelperE Helper expression associated with this clause.
		8614	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		8615	/// clause must be captured.
		8616	/// \param StartLoc Starting location of the clause.
		8617	/// \param LParenLoc Location of '('.
		8618	/// \param EndLoc Ending location of the clause.
		8619	OMPFilterClause(Expr ThreadID, Stmt HelperE,
		8620	OpenMPDirectiveKind CaptureRegion, SourceLocation StartLoc,
		8621	SourceLocation LParenLoc, SourceLocation EndLoc)
		8622	: OMPOneStmtClause(ThreadID, StartLoc, LParenLoc, EndLoc),
		8623	OMPClauseWithPreInit(this) {
		8624	setPreInitStmt(HelperE, CaptureRegion);
		8625	}
		8626
		8627	/// Build an empty clause.
		8628	OMPFilterClause() : OMPOneStmtClause(), OMPClauseWithPreInit(this) {}
		8629
		8630	/// Return thread identifier.
		8631	Expr *getThreadID() const { return getStmtAs<Expr>(); }
		8632
		8633	/// Return thread identifier.
		8634	Expr *getThreadID() { return getStmtAs<Expr>(); }
		8635	};
		8636
		8637	/// This represents 'bind' clause in the '#pragma omp ...' directives.
		8638	///
		8639	/// \code
		8640	/// #pragma omp loop bind(parallel)
		8641	/// \endcode
		8642	class OMPBindClause final : public OMPNoChildClause<llvm::omp::OMPC_bind> {
		8643	friend class OMPClauseReader;
		8644
		8645	/// Location of '('.
		8646	SourceLocation LParenLoc;
		8647
		8648	/// The binding kind of 'bind' clause.
		8649	OpenMPBindClauseKind Kind = OMPC_BIND_unknown;
		8650
		8651	/// Start location of the kind in source code.
		8652	SourceLocation KindLoc;
		8653
		8654	/// Sets the location of '('.
		8655	void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
		8656
		8657	/// Set the binding kind.
		8658	void setBindKind(OpenMPBindClauseKind K) { Kind = K; }
		8659
		8660	/// Set the binding kind location.
		8661	void setBindKindLoc(SourceLocation KLoc) { KindLoc = KLoc; }
		8662
		8663	/// Build 'bind' clause with kind \a K ('teams', 'parallel', or 'thread').
		8664	///
		8665	/// \param K Binding kind of the clause ('teams', 'parallel' or 'thread').
		8666	/// \param KLoc Starting location of the binding kind.
		8667	/// \param StartLoc Starting location of the clause.
		8668	/// \param LParenLoc Location of '('.
		8669	/// \param EndLoc Ending location of the clause.
		8670	OMPBindClause(OpenMPBindClauseKind K, SourceLocation KLoc,
		8671	SourceLocation StartLoc, SourceLocation LParenLoc,
		8672	SourceLocation EndLoc)
		8673	: OMPNoChildClause(StartLoc, EndLoc), LParenLoc(LParenLoc), Kind(K),
		8674	KindLoc(KLoc) {}
		8675
		8676	/// Build an empty clause.
		8677	OMPBindClause() : OMPNoChildClause() {}
		8678
		8679	public:
		8680	/// Build 'bind' clause with kind \a K ('teams', 'parallel', or 'thread').
		8681	///
		8682	/// \param C AST context
		8683	/// \param K Binding kind of the clause ('teams', 'parallel' or 'thread').
		8684	/// \param KLoc Starting location of the binding kind.
		8685	/// \param StartLoc Starting location of the clause.
		8686	/// \param LParenLoc Location of '('.
		8687	/// \param EndLoc Ending location of the clause.
		8688	static OMPBindClause *Create(const ASTContext &C, OpenMPBindClauseKind K,
		8689	SourceLocation KLoc, SourceLocation StartLoc,
		8690	SourceLocation LParenLoc, SourceLocation EndLoc);
		8691
		8692	/// Build an empty 'bind' clause.
		8693	///
		8694	/// \param C AST context
		8695	static OMPBindClause *CreateEmpty(const ASTContext &C);
		8696
		8697	/// Returns the location of '('.
		8698	SourceLocation getLParenLoc() const { return LParenLoc; }
		8699
		8700	/// Returns kind of the clause.
		8701	OpenMPBindClauseKind getBindKind() const { return Kind; }
		8702
		8703	/// Returns location of clause kind.
		8704	SourceLocation getBindKindLoc() const { return KindLoc; }
		8705	};
		8706
		8707	/// This class implements a simple visitor for OMPClause
		8708	/// subclasses.
		8709	template<class ImplClass, template <typename> class Ptr, typename RetTy>
		8710	class OMPClauseVisitorBase {
		8711	public:
		8712	#define PTR(CLASS) Ptr<CLASS>
		8713	#define DISPATCH(CLASS) \
		8714	return static_cast<ImplClass*>(this)->Visit##CLASS(static_cast<PTR(CLASS)>(S))
		8715
		8716	#define GEN_CLANG_CLAUSE_CLASS
		8717	#define CLAUSE_CLASS(Enum, Str, Class) \
		8718	RetTy Visit##Class(PTR(Class) S) { DISPATCH(Class); }
		8719	#include "llvm/Frontend/OpenMP/OMP.inc"
		8720
		8721	RetTy Visit(PTR(OMPClause) S) {
		8722	// Top switch clause: visit each OMPClause.
		8723	switch (S->getClauseKind()) {
		8724	#define GEN_CLANG_CLAUSE_CLASS
		8725	#define CLAUSE_CLASS(Enum, Str, Class) \
		8726	case llvm::omp::Clause::Enum: \
		8727	return Visit##Class(static_cast<PTR(Class)>(S));
		8728	#define CLAUSE_NO_CLASS(Enum, Str) \
		8729	case llvm::omp::Clause::Enum: \
		8730	break;
		8731	#include "llvm/Frontend/OpenMP/OMP.inc"
		8732	}
		8733	}
		8734	// Base case, ignore it. :)
		8735	RetTy VisitOMPClause(PTR(OMPClause) Node) { return RetTy(); }
		8736	#undef PTR
		8737	#undef DISPATCH
		8738	};
		8739
		8740	template <typename T> using const_ptr = std::add_pointer_t<std::add_const_t<T>>;
		8741
		8742	template <class ImplClass, typename RetTy = void>
		8743	class OMPClauseVisitor
		8744	: public OMPClauseVisitorBase<ImplClass, std::add_pointer_t, RetTy> {};
		8745	template<class ImplClass, typename RetTy = void>
		8746	class ConstOMPClauseVisitor :
		8747	public OMPClauseVisitorBase <ImplClass, const_ptr, RetTy> {};
		8748
		8749	class OMPClausePrinter final : public OMPClauseVisitor<OMPClausePrinter> {
		8750	raw_ostream &OS;
		8751	const PrintingPolicy &Policy;
		8752
		8753	/// Process clauses with list of variables.
		8754	template <typename T> void VisitOMPClauseList(T *Node, char StartSym);
		8755	/// Process motion clauses.
		8756	template <typename T> void VisitOMPMotionClause(T *Node);
		8757
		8758	public:
		8759	OMPClausePrinter(raw_ostream &OS, const PrintingPolicy &Policy)
		8760	: OS(OS), Policy(Policy) {}
		8761
		8762	#define GEN_CLANG_CLAUSE_CLASS
		8763	#define CLAUSE_CLASS(Enum, Str, Class) void Visit##Class(Class *S);
		8764	#include "llvm/Frontend/OpenMP/OMP.inc"
		8765	};
		8766
		8767	struct OMPTraitProperty {
		8768	llvm::omp::TraitProperty Kind = llvm::omp::TraitProperty::invalid;
		8769
		8770	/// The raw string as we parsed it. This is needed for the `isa` trait set
		8771	/// (which accepts anything) and (later) extensions.
		8772	StringRef RawString;
		8773	};
		8774	struct OMPTraitSelector {
		8775	Expr *ScoreOrCondition = nullptr;
		8776	llvm::omp::TraitSelector Kind = llvm::omp::TraitSelector::invalid;
		8777	llvm::SmallVector<OMPTraitProperty, 1> Properties;
		8778	};
		8779	struct OMPTraitSet {
		8780	llvm::omp::TraitSet Kind = llvm::omp::TraitSet::invalid;
		8781	llvm::SmallVector<OMPTraitSelector, 2> Selectors;
		8782	};
		8783
		8784	/// Helper data structure representing the traits in a match clause of an
		8785	/// `declare variant` or `metadirective`. The outer level is an ordered
		8786	/// collection of selector sets, each with an associated kind and an ordered
		8787	/// collection of selectors. A selector has a kind, an optional score/condition,
		8788	/// and an ordered collection of properties.
		8789	class OMPTraitInfo {
		8790	/// Private constructor accesible only by ASTContext.
		8791	OMPTraitInfo() {}
		8792	friend class ASTContext;
		8793
		8794	public:
		8795	/// Reconstruct a (partial) OMPTraitInfo object from a mangled name.
		8796	OMPTraitInfo(StringRef MangledName);
		8797
		8798	/// The outermost level of selector sets.
		8799	llvm::SmallVector<OMPTraitSet, 2> Sets;
		8800
		8801	bool anyScoreOrCondition(
		8802	llvm::function_ref<bool(Expr &, bool / IsScore */)> Cond) {
		8803	return llvm::any_of(Sets, [&](OMPTraitSet &Set) {
		8804	return llvm::any_of(
		8805	Set.Selectors, [&](OMPTraitSelector &Selector) {
		8806	return Cond(Selector.ScoreOrCondition,
		8807	/* IsScore */ Selector.Kind !=
		8808	llvm::omp::TraitSelector::user_condition);
		8809	});
		8810	});
		8811	}
		8812
		8813	/// Create a variant match info object from this trait info object. While the
		8814	/// former is a flat representation the actual main difference is that the
		8815	/// latter uses clang::Expr to store the score/condition while the former is
		8816	/// independent of clang. Thus, expressions and conditions are evaluated in
		8817	/// this method.
		8818	void getAsVariantMatchInfo(ASTContext &ASTCtx,
		8819	llvm::omp::VariantMatchInfo &VMI) const;
		8820
		8821	/// Return a string representation identifying this context selector.
		8822	std::string getMangledName() const;
		8823
		8824	/// Check the extension trait \p TP is active.
		8825	bool isExtensionActive(llvm::omp::TraitProperty TP) {
		8826	for (const OMPTraitSet &Set : Sets) {
		8827	if (Set.Kind != llvm::omp::TraitSet::implementation)
		8828	continue;
		8829	for (const OMPTraitSelector &Selector : Set.Selectors) {
		8830	if (Selector.Kind != llvm::omp::TraitSelector::implementation_extension)
		8831	continue;
		8832	for (const OMPTraitProperty &Property : Selector.Properties) {
		8833	if (Property.Kind == TP)
		8834	return true;
		8835	}
		8836	}
		8837	}
		8838	return false;
		8839	}
		8840
		8841	/// Print a human readable representation into \p OS.
		8842	void print(llvm::raw_ostream &OS, const PrintingPolicy &Policy) const;
		8843	};
		8844	llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const OMPTraitInfo &TI);
		8845	llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const OMPTraitInfo *TI);
		8846
		8847	/// Clang specific specialization of the OMPContext to lookup target features.
		8848	struct TargetOMPContext final : public llvm::omp::OMPContext {
		8849	TargetOMPContext(ASTContext &ASTCtx,
		8850	std::function<void(StringRef)> &&DiagUnknownTrait,
		8851	const FunctionDecl *CurrentFunctionDecl,
		8852	ArrayRef<llvm::omp::TraitProperty> ConstructTraits);
		8853
		8854	virtual ~TargetOMPContext() = default;
		8855
		8856	/// See llvm::omp::OMPContext::matchesISATrait
		8857	bool matchesISATrait(StringRef RawString) const override;
		8858
		8859	private:
		8860	std::function<bool(StringRef)> FeatureValidityCheck;
		8861	std::function<void(StringRef)> DiagUnknownTrait;
		8862	llvm::StringMap<bool> FeatureMap;
		8863	};
		8864
		8865	/// Contains data for OpenMP directives: clauses, children
		8866	/// expressions/statements (helpers for codegen) and associated statement, if
		8867	/// any.
		8868	class OMPChildren final
		8869	: private llvm::TrailingObjects<OMPChildren, OMPClause , Stmt > {
		8870	friend TrailingObjects;
		8871	friend class OMPClauseReader;
		8872	friend class OMPExecutableDirective;
		8873	template <typename T> friend class OMPDeclarativeDirective;
		8874
		8875	/// Numbers of clauses.
		8876	unsigned NumClauses = 0;
		8877	/// Number of child expressions/stmts.
		8878	unsigned NumChildren = 0;
		8879	/// true if the directive has associated statement.
		8880	bool HasAssociatedStmt = false;
		8881
		8882	/// Define the sizes of each trailing object array except the last one. This
		8883	/// is required for TrailingObjects to work properly.
		8884	size_t numTrailingObjects(OverloadToken<OMPClause *>) const {
		8885	return NumClauses;
		8886	}
		8887
		8888	OMPChildren() = delete;
		8889
		8890	OMPChildren(unsigned NumClauses, unsigned NumChildren, bool HasAssociatedStmt)
		8891	: NumClauses(NumClauses), NumChildren(NumChildren),
		8892	HasAssociatedStmt(HasAssociatedStmt) {}
		8893
		8894	static size_t size(unsigned NumClauses, bool HasAssociatedStmt,
		8895	unsigned NumChildren);
		8896
		8897	static OMPChildren Create(void Mem, ArrayRef<OMPClause *> Clauses);
		8898	static OMPChildren Create(void Mem, ArrayRef<OMPClause > Clauses, Stmt S,
		8899	unsigned NumChildren = 0);
		8900	static OMPChildren CreateEmpty(void Mem, unsigned NumClauses,
		8901	bool HasAssociatedStmt = false,
		8902	unsigned NumChildren = 0);
		8903
		8904	public:
		8905	unsigned getNumClauses() const { return NumClauses; }
		8906	unsigned getNumChildren() const { return NumChildren; }
		8907	bool hasAssociatedStmt() const { return HasAssociatedStmt; }
		8908
		8909	/// Set associated statement.
		8910	void setAssociatedStmt(Stmt *S) {
		8911	getTrailingObjects<Stmt *>()[NumChildren] = S;
		8912	}
		8913
		8914	void setChildren(ArrayRef<Stmt *> Children);
		8915
		8916	/// Sets the list of variables for this clause.
		8917	///
		8918	/// \param Clauses The list of clauses for the directive.
		8919	///
		8920	void setClauses(ArrayRef<OMPClause *> Clauses);
		8921
		8922	/// Returns statement associated with the directive.
		8923	const Stmt *getAssociatedStmt() const {
		8924	return const_cast<OMPChildren *>(this)->getAssociatedStmt();
		8925	}
		8926	Stmt *getAssociatedStmt() {
		8927	assert(HasAssociatedStmt &&
		8928	"Expected directive with the associated statement.");
		8929	return getTrailingObjects<Stmt *>()[NumChildren];
		8930	}
		8931
		8932	/// Get the clauses storage.
		8933	MutableArrayRef<OMPClause *> getClauses() {
		8934	return llvm::MutableArrayRef(getTrailingObjects<OMPClause *>(),
		8935	NumClauses);
		8936	}
		8937	ArrayRef<OMPClause *> getClauses() const {
		8938	return const_cast<OMPChildren *>(this)->getClauses();
		8939	}
		8940
		8941	/// Returns the captured statement associated with the
		8942	/// component region within the (combined) directive.
		8943	///
		8944	/// \param RegionKind Component region kind.
		8945	const CapturedStmt *
		8946	getCapturedStmt(OpenMPDirectiveKind RegionKind,
		8947	ArrayRef<OpenMPDirectiveKind> CaptureRegions) const {
		8948	assert(llvm::is_contained(CaptureRegions, RegionKind) &&
		8949	"RegionKind not found in OpenMP CaptureRegions.");
		8950	auto *CS = cast<CapturedStmt>(getAssociatedStmt());
		8951	for (auto ThisCaptureRegion : CaptureRegions) {
		8952	if (ThisCaptureRegion == RegionKind)
		8953	return CS;
		8954	CS = cast<CapturedStmt>(CS->getCapturedStmt());
		8955	}
		8956	llvm_unreachable("Incorrect RegionKind specified for directive.");
		8957	}
		8958
		8959	/// Get innermost captured statement for the construct.
		8960	CapturedStmt *
		8961	getInnermostCapturedStmt(ArrayRef<OpenMPDirectiveKind> CaptureRegions) {
		8962	assert(hasAssociatedStmt() && "Must have associated captured statement.");
		8963	assert(!CaptureRegions.empty() &&
		8964	"At least one captured statement must be provided.");
		8965	auto *CS = cast<CapturedStmt>(getAssociatedStmt());
		8966	for (unsigned Level = CaptureRegions.size(); Level > 1; --Level)
		8967	CS = cast<CapturedStmt>(CS->getCapturedStmt());
		8968	return CS;
		8969	}
		8970
		8971	const CapturedStmt *
		8972	getInnermostCapturedStmt(ArrayRef<OpenMPDirectiveKind> CaptureRegions) const {
		8973	return const_cast<OMPChildren *>(this)->getInnermostCapturedStmt(
		8974	CaptureRegions);
		8975	}
		8976
		8977	MutableArrayRef<Stmt *> getChildren();
		8978	ArrayRef<Stmt *> getChildren() const {
		8979	return const_cast<OMPChildren *>(this)->getChildren();
		8980	}
		8981
		8982	Stmt *getRawStmt() {
		8983	assert(HasAssociatedStmt &&
		8984	"Expected directive with the associated statement.");
		8985	if (auto *CS = dyn_cast<CapturedStmt>(getAssociatedStmt())) {
		8986	Stmt *S = nullptr;
		8987	do {
		8988	S = CS->getCapturedStmt();
		8989	CS = dyn_cast<CapturedStmt>(S);
		8990	} while (CS);
		8991	return S;
		8992	}
		8993	return getAssociatedStmt();
		8994	}
		8995	const Stmt *getRawStmt() const {
		8996	return const_cast<OMPChildren *>(this)->getRawStmt();
		8997	}
		8998
		8999	Stmt::child_range getAssociatedStmtAsRange() {
		9000	if (!HasAssociatedStmt)
		9001	return Stmt::child_range(Stmt::child_iterator(), Stmt::child_iterator());
		9002	return Stmt::child_range(&getTrailingObjects<Stmt *>()[NumChildren],
		9003	&getTrailingObjects<Stmt *>()[NumChildren + 1]);
		9004	}
		9005	};
		9006
		9007	/// This represents 'ompx_dyn_cgroup_mem' clause in the '#pragma omp target ...'
		9008	/// directive.
		9009	///
		9010	/// \code
		9011	/// #pragma omp target [...] ompx_dyn_cgroup_mem(N)
		9012	/// \endcode
		9013	class OMPXDynCGroupMemClause
		9014	: public OMPOneStmtClause<llvm::omp::OMPC_ompx_dyn_cgroup_mem, OMPClause>,
		9015	public OMPClauseWithPreInit {
		9016	friend class OMPClauseReader;
		9017
		9018	/// Set size.
		9019	void setSize(Expr *E) { setStmt(E); }
		9020
		9021	public:
		9022	/// Build 'ompx_dyn_cgroup_mem' clause.
		9023	///
		9024	/// \param Size Size expression.
		9025	/// \param HelperSize Helper Size expression
		9026	/// \param CaptureRegion Innermost OpenMP region where expressions in this
		9027	/// \param StartLoc Starting location of the clause.
		9028	/// \param LParenLoc Location of '('.
		9029	/// \param EndLoc Ending location of the clause.
		9030	OMPXDynCGroupMemClause(Expr Size, Stmt HelperSize,
		9031	OpenMPDirectiveKind CaptureRegion,
		9032	SourceLocation StartLoc, SourceLocation LParenLoc,
		9033	SourceLocation EndLoc)
		9034	: OMPOneStmtClause(Size, StartLoc, LParenLoc, EndLoc),
		9035	OMPClauseWithPreInit(this) {
		9036	setPreInitStmt(HelperSize, CaptureRegion);
		9037	}
		9038
		9039	/// Build an empty clause.
		9040	OMPXDynCGroupMemClause() : OMPOneStmtClause(), OMPClauseWithPreInit(this) {}
		9041
		9042	/// Return the size expression.
		9043	Expr *getSize() { return getStmtAs<Expr>(); }
		9044
		9045	/// Return the size expression.
		9046	Expr *getSize() const { return getStmtAs<Expr>(); }
		9047	};
		9048
		9049	} // namespace clang
		9050
		9051	#endif // LLVM_CLANG_AST_OPENMPCLAUSE_H

Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

QNX 8.QNX8 LLVM/Clang compiler suite/llvm-build/x86_64/include/clang/AST/OpenMPClause.h – Rev 14