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Refactor PGO code in preparation for handling non-C/C++ code.

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Move the PGO.assignRegionCounters() call out of StartFunction, because that
function is called from many places where it does not make sense to do PGO
instrumentation (e.g., compiler-generated helper functions). Change several
functions to take a StringRef argument for the unique name associated with
a function, so that the name can be set differently for things like Objective-C
methods and block literals.

llvm-svn: 203073
This commit is contained in:
Bob Wilson
2014-03-06 04:55:35 +00:00
parent 749ebc7f33
commit 68f475faf7
3 changed files with 11 additions and 12 deletions
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4
clang/lib/CodeGen/CodeGenFunction.cpp
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@@ -589,7 +589,6 @@ void CodeGenFunction::StartFunction(GlobalDecl GD,
if (CGM.getCodeGenOpts().InstrumentForProfiling)
EmitMCountInstrumentation();
PGO.assignRegionCounters(GD);
if (CGM.getPGOData() && D) {
// Turn on InlineHint attribute for hot functions.
if (CGM.getPGOData()->isHotFunction(CGM.getMangledName(GD)))
@@ -771,6 +770,7 @@ void CodeGenFunction::GenerateCode(GlobalDecl GD, llvm::Function *Fn,
StartFunction(GD, ResTy, Fn, FnInfo, Args, BodyRange.getBegin());
// Generate the body of the function.
PGO.assignRegionCounters(GD.getDecl(), CGM.getMangledName(GD));
if (isa<CXXDestructorDecl>(FD))
EmitDestructorBody(Args);
else if (isa<CXXConstructorDecl>(FD))
@@ -831,7 +831,7 @@ void CodeGenFunction::GenerateCode(GlobalDecl GD, llvm::Function *Fn,
if (!CurFn->doesNotThrow())
TryMarkNoThrow(CurFn);
PGO.emitWriteoutFunction(CurGD);
PGO.emitWriteoutFunction(CGM.getMangledName(CurGD));
PGO.destroyRegionCounters();
}