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Emit gcov data files to the directory specified in the metadata produced by the

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frontend, if applicable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130835 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2011-05-04 04:03:04 +00:00
parent d006ddc195
commit 269687fa35
1 changed files with 23 additions and 4 deletions
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27
lib/Transforms/Instrumentation/GCOVProfiling.cpp
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@ -40,7 +40,6 @@ using namespace llvm;
namespace {
class GCOVProfiler : public ModulePass {
bool runOnModule(Module &M);
public:
static char ID;
GCOVProfiler()
@ -57,6 +56,8 @@ namespace {
}
private:
bool runOnModule(Module &M);
// Create the GCNO files for the Module based on DebugInfo.
void emitGCNO(DebugInfoFinder &DIF);
@ -88,6 +89,8 @@ namespace {
SmallVector<std::pair<GlobalVariable *,
uint32_t>, 8> &);
std::string mangleName(DICompileUnit CU, std::string NewStem);
bool EmitNotes;
bool EmitData;
@ -323,6 +326,22 @@ static std::string replaceStem(std::string OrigFilename, std::string NewStem) {
return (sys::path::stem(OrigFilename) + "." + NewStem).str();
}
std::string GCOVProfiler::mangleName(DICompileUnit CU, std::string NewStem) {
if (NamedMDNode *GCov = M->getNamedMetadata("llvm.gcov")) {
for (int i = 0, e = GCov->getNumOperands(); i != e; ++i) {
MDNode *N = GCov->getOperand(i);
if (N->getNumOperands() != 2) continue;
MDString *Path = dyn_cast<MDString>(N->getOperand(0));
MDNode *CompileUnit = dyn_cast<MDNode>(N->getOperand(1));
if (!Path || !CompileUnit) continue;
if (CompileUnit == CU)
return (Path->getString() + "/" +
replaceStem(CU.getFilename(), NewStem)).str();
}
}
return replaceStem(CU.getFilename(), NewStem);
}
bool GCOVProfiler::runOnModule(Module &M) {
this->M = &M;
Ctx = &M.getContext();
@ -346,8 +365,8 @@ void GCOVProfiler::emitGCNO(DebugInfoFinder &DIF) {
DICompileUnit CU(*I);
raw_fd_ostream *&out = GcnoFiles[CU];
std::string ErrorInfo;
out = new raw_fd_ostream(replaceStem(CU.getFilename(), "gcno").c_str(),
ErrorInfo, raw_fd_ostream::F_Binary);
out = new raw_fd_ostream(mangleName(CU, "gcno").c_str(), ErrorInfo,
raw_fd_ostream::F_Binary);
out->write("oncg*404MVLL", 12);
}
@ -615,7 +634,7 @@ void GCOVProfiler::insertCounterWriteout(
for (DebugInfoFinder::iterator CUI = DIF.compile_unit_begin(),
CUE = DIF.compile_unit_end(); CUI != CUE; ++CUI) {
DICompileUnit compile_unit(*CUI);
std::string FilenameGcda = replaceStem(compile_unit.getFilename(), "gcda");
std::string FilenameGcda = mangleName(compile_unit, "gcda");
Builder.CreateCall(StartFile,
Builder.CreateGlobalStringPtr(FilenameGcda));
for (SmallVector<std::pair<GlobalVariable *, uint32_t>, 8>::iterator