1 //===----------------------- CodeRegionGenerator.h --------------*- 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 /// \file 9 /// 10 /// This file declares classes responsible for generating llvm-mca 11 /// CodeRegions from various types of input. llvm-mca only analyzes CodeRegions, 12 /// so the classes here provide the input-to-CodeRegions translation. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_TOOLS_LLVM_MCA_CODEREGION_GENERATOR_H 17 #define LLVM_TOOLS_LLVM_MCA_CODEREGION_GENERATOR_H 18 19 #include "CodeRegion.h" 20 #include "llvm/MC/MCAsmInfo.h" 21 #include "llvm/MC/MCContext.h" 22 #include "llvm/MC/MCSubtargetInfo.h" 23 #include "llvm/Support/Error.h" 24 #include "llvm/Support/SourceMgr.h" 25 #include "llvm/Support/TargetRegistry.h" 26 #include <memory> 27 28 namespace llvm { 29 namespace mca { 30 31 /// This class is responsible for parsing the input given to the llvm-mca 32 /// driver, and converting that into a CodeRegions instance. 33 class CodeRegionGenerator { 34 protected: 35 CodeRegions Regions; 36 CodeRegionGenerator(const CodeRegionGenerator &) = delete; 37 CodeRegionGenerator &operator=(const CodeRegionGenerator &) = delete; 38 39 public: 40 CodeRegionGenerator(SourceMgr &SM) : Regions(SM) {} 41 virtual ~CodeRegionGenerator(); 42 virtual Expected<const CodeRegions &> 43 parseCodeRegions(const std::unique_ptr<MCInstPrinter> &IP) = 0; 44 }; 45 46 /// This class is responsible for parsing input ASM and generating 47 /// a CodeRegions instance. 48 class AsmCodeRegionGenerator final : public CodeRegionGenerator { 49 const Target &TheTarget; 50 MCContext &Ctx; 51 const MCAsmInfo &MAI; 52 const MCSubtargetInfo &STI; 53 const MCInstrInfo &MCII; 54 unsigned AssemblerDialect; // This is set during parsing. 55 56 public: 57 AsmCodeRegionGenerator(const Target &T, SourceMgr &SM, MCContext &C, 58 const MCAsmInfo &A, const MCSubtargetInfo &S, 59 const MCInstrInfo &I) 60 : CodeRegionGenerator(SM), TheTarget(T), Ctx(C), MAI(A), STI(S), MCII(I), 61 AssemblerDialect(0) {} 62 63 unsigned getAssemblerDialect() const { return AssemblerDialect; } 64 Expected<const CodeRegions &> 65 parseCodeRegions(const std::unique_ptr<MCInstPrinter> &IP) override; 66 }; 67 68 } // namespace mca 69 } // namespace llvm 70 71 #endif // LLVM_TOOLS_LLVM_MCA_CODEREGION_GENERATOR_H 72