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Add -fprofile-sample-use to Clang's driver.

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This adds a new option -fprofile-sample-use=filename to Clang. It
tells the driver to schedule the SampleProfileLoader pass and passes
on the name of the profile file to use.

llvm-svn: 194567
This commit is contained in:
Diego Novillo
2013-11-13 12:22:39 +00:00
parent 8d6568b56b
commit 5c29705c13
7 changed files with 30 additions and 0 deletions
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12
clang/lib/CodeGen/BackendUtil.cpp
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@@ -154,6 +154,14 @@ static void addObjCARCOptPass(const PassManagerBuilder &Builder, PassManagerBase
PM.add(createObjCARCOptPass());
}
static void addSampleProfileLoaderPass(const PassManagerBuilder &Builder,
PassManagerBase &PM) {
const PassManagerBuilderWrapper &BuilderWrapper =
static_cast<const PassManagerBuilderWrapper &>(Builder);
const CodeGenOptions &CGOpts = BuilderWrapper.getCGOpts();
PM.add(createSampleProfileLoaderPass(CGOpts.SampleProfileFile));
}
static void addBoundsCheckingPass(const PassManagerBuilder &Builder,
PassManagerBase &PM) {
PM.add(createBoundsCheckingPass());
@@ -235,6 +243,10 @@ void EmitAssemblyHelper::CreatePasses(TargetMachine *TM) {
PMBuilder.DisableUnitAtATime = !CodeGenOpts.UnitAtATime;
PMBuilder.DisableUnrollLoops = !CodeGenOpts.UnrollLoops;
if (!CodeGenOpts.SampleProfileFile.empty())
PMBuilder.addExtension(PassManagerBuilder::EP_EarlyAsPossible,
addSampleProfileLoaderPass);
// In ObjC ARC mode, add the main ARC optimization passes.
if (LangOpts.ObjCAutoRefCount) {
PMBuilder.addExtension(PassManagerBuilder::EP_EarlyAsPossible,