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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
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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