MachineFunctionAnalysis.h

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//===- llvm/CodeGen/MachineFunctionAnalysis.h -------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the MachineFunctionAnalysis class.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CODEGEN_MACHINEFUNCTIONANALYSIS
#define LLVM_CODEGEN_MACHINEFUNCTIONANALYSIS
 
#include "llvm/IR/PassManager.h"
 
namespace llvm {
 
class MachineFunction;
class TargetMachine;
 
/// This analysis create MachineFunction for given Function.
/// To release the MachineFunction, users should invalidate it explicitly.
class MachineFunctionAnalysis
    : public AnalysisInfoMixin<MachineFunctionAnalysis> {
  friend AnalysisInfoMixin<MachineFunctionAnalysis>;
 
  static AnalysisKey Key;
 
  const TargetMachine *TM;
 
public:
  class Result {
    std::unique_ptr<MachineFunction> MF;
 
  public:
    Result(std::unique_ptr<MachineFunction> MF) : MF(std::move(MF)) {}
    MachineFunction &getMF() { return *MF; };
    bool invalidate(Function &, const PreservedAnalyses &PA,
                    FunctionAnalysisManager::Invalidator &);
  };
 
  MachineFunctionAnalysis(const TargetMachine *TM) : TM(TM) {};
  Result run(Function &F, FunctionAnalysisManager &FAM);
};
 
} // namespace llvm
 
#endif // LLVM_CODEGEN_MachineFunctionAnalysis