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//===-- LlvmState.h ---------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// A class to set up and access common LLVM objects.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVM_EXEGESIS_LLVMSTATE_H
#define LLVM_TOOLS_LLVM_EXEGESIS_LLVMSTATE_H
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Target/TargetMachine.h"
#include <memory>
#include <string>
namespace exegesis {
class ExegesisTarget;
// An object to initialize LLVM and prepare objects needed to run the
// measurements.
class LLVMState {
public:
LLVMState();
LLVMState(const std::string &Triple,
const std::string &CpuName); // For tests.
const llvm::TargetMachine &getTargetMachine() const { return *TargetMachine; }
std::unique_ptr<llvm::LLVMTargetMachine> createTargetMachine() const;
const ExegesisTarget &getExegesisTarget() const { return *TheExegesisTarget; }
bool canAssemble(const llvm::MCInst &mc_inst) const;
// For convenience:
const llvm::MCInstrInfo &getInstrInfo() const {
return *TargetMachine->getMCInstrInfo();
}
const llvm::MCRegisterInfo &getRegInfo() const {
return *TargetMachine->getMCRegisterInfo();
}
const llvm::MCSubtargetInfo &getSubtargetInfo() const {
return *TargetMachine->getMCSubtargetInfo();
}
private:
const ExegesisTarget *TheExegesisTarget;
std::unique_ptr<const llvm::TargetMachine> TargetMachine;
};
} // namespace exegesis
#endif // LLVM_TOOLS_LLVM_EXEGESIS_LLVMSTATE_H
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