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Differential D17272

Teach clang to use the ThinLTO pipeline
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Authored by mehdi_amini on Feb 15 2016, 11:14 AM.

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tejohnson

Commits

rGa7c0940d723b: Teach clang to use the ThinLTO pipeline
rC261045: Teach clang to use the ThinLTO pipeline

Summary

Use the new pipeline implemented in D17115

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mehdi_amini updated this revision to Diff 48001.Feb 15 2016, 11:14 AM

mehdi_amini retitled this revision from to Teach clang to use the ThinLTO pipeline.

mehdi_amini updated this object.

mehdi_amini added a reviewer: tejohnson.

mehdi_amini added a subscriber: cfe-commits.

Herald added a subscriber: mehdi_amini. · View Herald TranscriptFeb 15 2016, 11:14 AM

LGTM, thanks

This revision is now accepted and ready to land.Feb 16 2016, 9:10 AM

r261045

Revision Contents

Path

Size

lib/

CodeGen/

BackendUtil.cpp

3 lines

Diff 48001

lib/CodeGen/BackendUtil.cpp

Show First 20 Lines • Show All 319 Lines • ▼ Show 20 Lines	void EmitAssemblyHelper::CreatePasses(FunctionInfoIndex *FunctionIndex) {
PMBuilder.SizeLevel = CodeGenOpts.OptimizeSize;		PMBuilder.SizeLevel = CodeGenOpts.OptimizeSize;
PMBuilder.BBVectorize = CodeGenOpts.VectorizeBB;		PMBuilder.BBVectorize = CodeGenOpts.VectorizeBB;
PMBuilder.SLPVectorize = CodeGenOpts.VectorizeSLP;		PMBuilder.SLPVectorize = CodeGenOpts.VectorizeSLP;
PMBuilder.LoopVectorize = CodeGenOpts.VectorizeLoop;		PMBuilder.LoopVectorize = CodeGenOpts.VectorizeLoop;

PMBuilder.DisableUnitAtATime = !CodeGenOpts.UnitAtATime;		PMBuilder.DisableUnitAtATime = !CodeGenOpts.UnitAtATime;
PMBuilder.DisableUnrollLoops = !CodeGenOpts.UnrollLoops;		PMBuilder.DisableUnrollLoops = !CodeGenOpts.UnrollLoops;
PMBuilder.MergeFunctions = CodeGenOpts.MergeFunctions;		PMBuilder.MergeFunctions = CodeGenOpts.MergeFunctions;
		PMBuilder.PrepareForThinLTO = CodeGenOpts.EmitFunctionSummary;
PMBuilder.PrepareForLTO = CodeGenOpts.PrepareForLTO;		PMBuilder.PrepareForLTO = CodeGenOpts.PrepareForLTO;
PMBuilder.RerollLoops = CodeGenOpts.RerollLoops;		PMBuilder.RerollLoops = CodeGenOpts.RerollLoops;

legacy::PassManager *MPM = getPerModulePasses();		legacy::PassManager *MPM = getPerModulePasses();

// If we are performing a ThinLTO importing compile, invoke the LTO		// If we are performing a ThinLTO importing compile, invoke the LTO
// pipeline and pass down the in-memory function index.		// pipeline and pass down the in-memory function index.
if (FunctionIndex) {		if (FunctionIndex) {
PMBuilder.FunctionIndex = FunctionIndex;		PMBuilder.FunctionIndex = FunctionIndex;
PMBuilder.populateLTOPassManager(*MPM);		PMBuilder.populateThinLTOPassManager(*MPM);
return;		return;
}		}

PMBuilder.addExtension(PassManagerBuilder::EP_EarlyAsPossible,		PMBuilder.addExtension(PassManagerBuilder::EP_EarlyAsPossible,
addAddDiscriminatorsPass);		addAddDiscriminatorsPass);

// In ObjC ARC mode, add the main ARC optimization passes.		// In ObjC ARC mode, add the main ARC optimization passes.
if (LangOpts.ObjCAutoRefCount) {		if (LangOpts.ObjCAutoRefCount) {
▲ Show 20 Lines • Show All 471 Lines • Show Last 20 Lines