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[ELF] Refactor run of LTO passes into an helper. NFC. 

Requested by: Rui Ueyama.

llvm-svn: 263851
This commit is contained in:
Davide Italiano 2016-03-18 23:22:40 +00:00
parent 5abc2765fa
commit ac8737ac60
1 changed files with 22 additions and 18 deletions
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40
lld/ELF/SymbolTable.cpp
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@ -119,6 +119,27 @@ static void saveBCFile(Module &M, StringRef Suffix) {
WriteBitcodeToFile(&M, OS, /* ShouldPreserveUseListOrder */ true);
}
static void runLTOPasses(Module &M, TargetMachine &TM) {
// Run LTO passes.
// FIXME: Reduce code duplication by sharing this code with the gold plugin.
legacy::PassManager LtoPasses;
LtoPasses.add(
createTargetTransformInfoWrapperPass(TM.getTargetIRAnalysis()));
PassManagerBuilder PMB;
PMB.LibraryInfo = new TargetLibraryInfoImpl(Triple(TM.getTargetTriple()));
PMB.Inliner = createFunctionInliningPass();
PMB.VerifyInput = true;
PMB.VerifyOutput = true;
PMB.LoopVectorize = true;
PMB.SLPVectorize = true;
PMB.OptLevel = 2; // FIXME: This should be an option.
PMB.populateLTOPassManager(LtoPasses);
LtoPasses.run(M);
if (Config->SaveTemps)
saveBCFile(M, ".lto.opt.bc");
}
// Codegen the module M and returns the resulting InputFile.
template <class ELFT>
std::unique_ptr<InputFile> SymbolTable<ELFT>::codegen(Module &M) {
@ -139,24 +160,7 @@ std::unique_ptr<InputFile> SymbolTable<ELFT>::codegen(Module &M) {
std::unique_ptr<TargetMachine> TM(
TheTarget->createTargetMachine(TripleStr, "", "", Options, R));
// Run LTO passes.
// FIXME: Reduce code duplication by sharing this code with the gold plugin.
legacy::PassManager LtoPasses;
LtoPasses.add(
createTargetTransformInfoWrapperPass(TM->getTargetIRAnalysis()));
PassManagerBuilder PMB;
PMB.LibraryInfo = new TargetLibraryInfoImpl(Triple(TM->getTargetTriple()));
PMB.Inliner = createFunctionInliningPass();
PMB.VerifyInput = true;
PMB.VerifyOutput = true;
PMB.LoopVectorize = true;
PMB.SLPVectorize = true;
PMB.OptLevel = 2; // FIXME: This should be an option.
PMB.populateLTOPassManager(LtoPasses);
LtoPasses.run(M);
if (Config->SaveTemps)
saveBCFile(M, ".lto.opt.bc");
runLTOPasses(M, *TM);
raw_svector_ostream OS(OwningLTOData);
legacy::PassManager CodeGenPasses;