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//===- MachineFunctionAnalysis.cpp ----------------------------------------===//
//
// 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 contains the definitions of the MachineFunctionAnalysis
// members.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineFunctionAnalysis.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/IR/Function.h"
#include "llvm/Target/TargetMachine.h"
using namespace llvm;
AnalysisKey MachineFunctionAnalysis::Key;
bool MachineFunctionAnalysis::Result::invalidate(
Function &, const PreservedAnalyses &PA,
FunctionAnalysisManager::Invalidator &) {
// Unless it is invalidated explicitly, it should remain preserved.
auto PAC = PA.getChecker<MachineFunctionAnalysis>();
return !PAC.preservedWhenStateless();
}
MachineFunctionAnalysis::Result
MachineFunctionAnalysis::run(Function &F, FunctionAnalysisManager &FAM) {
auto &Context = F.getContext();
const TargetSubtargetInfo &STI = *TM->getSubtargetImpl(F);
auto &MMI = FAM.getResult<ModuleAnalysisManagerFunctionProxy>(F)
.getCachedResult<MachineModuleAnalysis>(*F.getParent())
->getMMI();
auto MF = std::make_unique<MachineFunction>(
F, *TM, STI, Context.generateMachineFunctionNum(F), MMI);
MF->initTargetMachineFunctionInfo(STI);
// MRI callback for target specific initializations.
TM->registerMachineRegisterInfoCallback(*MF);
return Result(std::move(MF));
}
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