forked from OSchip/llvm-project
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
//===-- LlvmState.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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///
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/// \file
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/// A class to set up and access common LLVM objects.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_EXEGESIS_LLVMSTATE_H
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#define LLVM_TOOLS_LLVM_EXEGESIS_LLVMSTATE_H
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#include "MCInstrDescView.h"
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#include "RegisterAliasing.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/Target/TargetMachine.h"
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#include <memory>
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#include <string>
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namespace llvm {
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namespace exegesis {
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class ExegesisTarget;
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struct PfmCountersInfo;
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// An object to initialize LLVM and prepare objects needed to run the
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// measurements.
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class LLVMState {
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public:
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// Uses the host triple. If CpuName is empty, uses the host CPU.
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LLVMState(const std::string &CpuName);
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LLVMState(const std::string &Triple,
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const std::string &CpuName,
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const std::string &Features = ""); // For tests.
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const TargetMachine &getTargetMachine() const { return *TheTargetMachine; }
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std::unique_ptr<LLVMTargetMachine> createTargetMachine() const;
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const ExegesisTarget &getExegesisTarget() const { return *TheExegesisTarget; }
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bool canAssemble(const MCInst &mc_inst) const;
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// For convenience:
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const MCInstrInfo &getInstrInfo() const {
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return *TheTargetMachine->getMCInstrInfo();
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}
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const MCRegisterInfo &getRegInfo() const {
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return *TheTargetMachine->getMCRegisterInfo();
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}
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const MCSubtargetInfo &getSubtargetInfo() const {
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return *TheTargetMachine->getMCSubtargetInfo();
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}
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const RegisterAliasingTrackerCache &getRATC() const { return *RATC; }
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const InstructionsCache &getIC() const { return *IC; }
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const PfmCountersInfo &getPfmCounters() const { return *PfmCounters; }
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private:
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const ExegesisTarget *TheExegesisTarget;
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std::unique_ptr<const TargetMachine> TheTargetMachine;
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std::unique_ptr<const RegisterAliasingTrackerCache> RATC;
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std::unique_ptr<const InstructionsCache> IC;
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const PfmCountersInfo *PfmCounters;
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};
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} // namespace exegesis
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} // namespace llvm
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#endif // LLVM_TOOLS_LLVM_EXEGESIS_LLVMSTATE_H
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