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//===-- MachineFunctionPass.cpp -------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the definitions of the MachineFunctionPass members.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/BasicAliasAnalysis.h"
#include "llvm/Analysis/DominanceFrontier.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/IVUsers.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/MemoryDependenceAnalysis.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/StackProtector.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
using namespace llvm;
Pass *MachineFunctionPass::createPrinterPass(raw_ostream &O,
const std::string &Banner) const {
return createMachineFunctionPrinterPass(O, Banner);
}
bool MachineFunctionPass::runOnFunction(Function &F) {
// Do not codegen any 'available_externally' functions at all, they have
// definitions outside the translation unit.
if (F.hasAvailableExternallyLinkage())
return false;
MachineModuleInfo &MMI = getAnalysis<MachineModuleInfo>();
MachineFunction &MF = MMI.getMachineFunction(F);
MachineFunctionProperties &MFProps = MF.getProperties();
#ifndef NDEBUG
if (!MFProps.verifyRequiredProperties(RequiredProperties)) {
errs() << "MachineFunctionProperties required by " << getPassName()
<< " pass are not met by function " << F.getName() << ".\n"
<< "Required properties: ";
RequiredProperties.print(errs());
errs() << "\nCurrent properties: ";
MFProps.print(errs());
errs() << "\n";
llvm_unreachable("MachineFunctionProperties check failed");
}
#endif
bool RV = runOnMachineFunction(MF);
MFProps.set(SetProperties);
MFProps.reset(ClearedProperties);
return RV;
}
void MachineFunctionPass::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<MachineModuleInfo>();
AU.addPreserved<MachineModuleInfo>();
// MachineFunctionPass preserves all LLVM IR passes, but there's no
// high-level way to express this. Instead, just list a bunch of
// passes explicitly. This does not include setPreservesCFG,
// because CodeGen overloads that to mean preserving the MachineBasicBlock
// CFG in addition to the LLVM IR CFG.
AU.addPreserved<BasicAAWrapperPass>();
AU.addPreserved<DominanceFrontierWrapperPass>();
AU.addPreserved<DominatorTreeWrapperPass>();
AU.addPreserved<AAResultsWrapperPass>();
AU.addPreserved<GlobalsAAWrapperPass>();
AU.addPreserved<IVUsersWrapperPass>();
AU.addPreserved<LoopInfoWrapperPass>();
AU.addPreserved<MemoryDependenceWrapperPass>();
AU.addPreserved<ScalarEvolutionWrapperPass>();
AU.addPreserved<SCEVAAWrapperPass>();
AU.addPreserved<StackProtector>();
FunctionPass::getAnalysisUsage(AU);
}
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