forked from OSchip/llvm-project
70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
//===----------------------- CodeRegionGenerator.h --------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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/// \file
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///
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/// This file declares classes responsible for generating llvm-mca
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/// CodeRegions from various types of input. llvm-mca only analyzes CodeRegions,
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/// so the classes here provide the input-to-CodeRegions translation.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_MCA_CODEREGION_GENERATOR_H
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#define LLVM_TOOLS_LLVM_MCA_CODEREGION_GENERATOR_H
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#include "CodeRegion.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/TargetRegistry.h"
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#include <memory>
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namespace llvm {
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namespace mca {
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/// This class is responsible for parsing the input given to the llvm-mca
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/// driver, and converting that into a CodeRegions instance.
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class CodeRegionGenerator {
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protected:
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CodeRegions Regions;
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CodeRegionGenerator(const CodeRegionGenerator &) = delete;
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CodeRegionGenerator &operator=(const CodeRegionGenerator &) = delete;
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public:
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CodeRegionGenerator(SourceMgr &SM) : Regions(SM) {}
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virtual ~CodeRegionGenerator();
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virtual Expected<const CodeRegions &> parseCodeRegions() = 0;
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};
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/// This class is responsible for parsing input ASM and generating
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/// a CodeRegions instance.
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class AsmCodeRegionGenerator final : public CodeRegionGenerator {
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const Target &TheTarget;
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MCContext &Ctx;
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const MCAsmInfo &MAI;
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const MCSubtargetInfo &STI;
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const MCInstrInfo &MCII;
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unsigned AssemblerDialect; // This is set during parsing.
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public:
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AsmCodeRegionGenerator(const Target &T, SourceMgr &SM, MCContext &C,
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const MCAsmInfo &A, const MCSubtargetInfo &S,
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const MCInstrInfo &I)
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: CodeRegionGenerator(SM), TheTarget(T), Ctx(C), MAI(A), STI(S), MCII(I),
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AssemblerDialect(0) {}
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unsigned getAssemblerDialect() const { return AssemblerDialect; }
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Expected<const CodeRegions &> parseCodeRegions() override;
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};
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} // namespace mca
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} // namespace llvm
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#endif // LLVM_TOOLS_LLVM_MCA_CODEREGION_GENERATOR_H
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