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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===-- llvm/Target/TargetIntrinsicInfo.h - Instruction Info ----*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file describes the target intrinsic instructions to the code generator. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |||
| 13 | #ifndef LLVM_TARGET_TARGETINTRINSICINFO_H |
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| 14 | #define LLVM_TARGET_TARGETINTRINSICINFO_H |
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| 15 | |||
| 16 | #include "llvm/ADT/StringRef.h" |
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| 17 | #include <string> |
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| 18 | |||
| 19 | namespace llvm { |
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| 20 | |||
| 21 | class Function; |
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| 22 | class Module; |
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| 23 | class Type; |
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| 24 | |||
| 25 | //--------------------------------------------------------------------------- |
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| 26 | /// |
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| 27 | /// TargetIntrinsicInfo - Interface to description of machine instruction set |
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| 28 | /// |
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| 29 | class TargetIntrinsicInfo { |
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| 30 | TargetIntrinsicInfo(const TargetIntrinsicInfo &) = delete; |
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| 31 | void operator=(const TargetIntrinsicInfo &) = delete; |
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| 32 | public: |
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| 33 | TargetIntrinsicInfo(); |
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| 34 | virtual ~TargetIntrinsicInfo(); |
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| 35 | |||
| 36 | /// Return the name of a target intrinsic, e.g. "llvm.bfin.ssync". |
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| 37 | /// The Tys and numTys parameters are for intrinsics with overloaded types |
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| 38 | /// (e.g., those using iAny or fAny). For a declaration for an overloaded |
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| 39 | /// intrinsic, Tys should point to an array of numTys pointers to Type, |
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| 40 | /// and must provide exactly one type for each overloaded type in the |
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| 41 | /// intrinsic. |
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| 42 | virtual std::string getName(unsigned IID, Type **Tys = nullptr, |
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| 43 | unsigned numTys = 0) const = 0; |
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| 44 | |||
| 45 | /// Look up target intrinsic by name. Return intrinsic ID or 0 for unknown |
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| 46 | /// names. |
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| 47 | virtual unsigned lookupName(const char *Name, unsigned Len) const =0; |
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| 48 | |||
| 49 | unsigned lookupName(StringRef Name) const { |
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| 50 | return lookupName(Name.data(), Name.size()); |
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| 51 | } |
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| 52 | |||
| 53 | /// Return the target intrinsic ID of a function, or 0. |
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| 54 | virtual unsigned getIntrinsicID(const Function *F) const; |
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| 55 | |||
| 56 | /// Returns true if the intrinsic can be overloaded. |
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| 57 | virtual bool isOverloaded(unsigned IID) const = 0; |
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| 58 | |||
| 59 | /// Create or insert an LLVM Function declaration for an intrinsic, |
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| 60 | /// and return it. The Tys and numTys are for intrinsics with overloaded |
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| 61 | /// types. See above for more information. |
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| 62 | virtual Function *getDeclaration(Module *M, unsigned ID, Type **Tys = nullptr, |
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| 63 | unsigned numTys = 0) const = 0; |
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| 64 | }; |
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| 65 | |||
| 66 | } // End llvm namespace |
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| 67 | |||
| 68 | #endif |