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  1. //===--- LoopHint.h - Types for LoopHint ------------------------*- 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. #ifndef LLVM_CLANG_PARSE_LOOPHINT_H
  10. #define LLVM_CLANG_PARSE_LOOPHINT_H
  11.  
  12. #include "clang/Basic/IdentifierTable.h"
  13. #include "clang/Basic/SourceLocation.h"
  14. #include "clang/Sema/Ownership.h"
  15. #include "clang/Sema/ParsedAttr.h"
  16.  
  17. namespace clang {
  18.  
  19. /// Loop optimization hint for loop and unroll pragmas.
  20. struct LoopHint {
  21.   // Source range of the directive.
  22.   SourceRange Range;
  23.   // Identifier corresponding to the name of the pragma.  "loop" for
  24.   // "#pragma clang loop" directives and "unroll" for "#pragma unroll"
  25.   // hints.
  26.   IdentifierLoc *PragmaNameLoc;
  27.   // Name of the loop hint.  Examples: "unroll", "vectorize".  In the
  28.   // "#pragma unroll" and "#pragma nounroll" cases, this is identical to
  29.   // PragmaNameLoc.
  30.   IdentifierLoc *OptionLoc;
  31.   // Identifier for the hint state argument.  If null, then the state is
  32.   // default value such as for "#pragma unroll".
  33.   IdentifierLoc *StateLoc;
  34.   // Expression for the hint argument if it exists, null otherwise.
  35.   Expr *ValueExpr;
  36.  
  37.   LoopHint()
  38.       : PragmaNameLoc(nullptr), OptionLoc(nullptr), StateLoc(nullptr),
  39.         ValueExpr(nullptr) {}
  40. };
  41.  
  42. } // end namespace clang
  43.  
  44. #endif // LLVM_CLANG_PARSE_LOOPHINT_H
  45.