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Don't emit the extra checksum into the .gcda file if the user hasn't asked for

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it. Fortunately, versions of gcov that predate the extra checksum also ignore
any extra data, so this isn't a problem. There will be a matching commit in
compiler-rt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176745 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2013-03-09 01:33:06 +00:00
parent 24babfd234
commit 17d2f77601
1 changed files with 6 additions and 4 deletions
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8
lib/Transforms/Instrumentation/GCOVProfiling.cpp
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@ -601,9 +601,10 @@ Constant *GCOVProfiler::getIncrementIndirectCounterFunc() {
}
Constant *GCOVProfiler::getEmitFunctionFunc() {
Type *Args[2] = {
Type *Args[3] = {
Type::getInt32Ty(*Ctx), // uint32_t ident
Type::getInt8PtrTy(*Ctx), // const char *function_name
Type::getInt8Ty(*Ctx), // uint8_t use_extra_checksum
};
FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx), Args, false);
return M->getOrInsertFunction("llvm_gcda_emit_function", FTy);
@ -668,11 +669,12 @@ void GCOVProfiler::insertCounterWriteout(
I = CountersBySP.begin(), E = CountersBySP.end();
I != E; ++I) {
DISubprogram SP(I->second);
Builder.CreateCall2(EmitFunction,
Builder.CreateCall3(EmitFunction,
Builder.getInt32(i),
NoFunctionNamesInData ?
Constant::getNullValue(Builder.getInt8PtrTy()) :
Builder.CreateGlobalStringPtr(SP.getName()));
Builder.CreateGlobalStringPtr(SP.getName()),
Builder.getInt8(UseExtraChecksum));
GlobalVariable *GV = I->first;
unsigned Arcs =