Add independent controls for whether GCOV profiling should emit .gcno files or
instrument the program to emit .gcda.
TODO: we should emit slightly different .gcda files when .gcno emission is off.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129903 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index 4e63a43..a3ad5fe 100644
--- a/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -43,7 +43,13 @@
bool runOnModule(Module &M);
public:
static char ID;
- GCOVProfiler() : ModulePass(ID) {
+ GCOVProfiler()
+ : ModulePass(ID), EmitNotes(true), EmitData(true) {
+ initializeGCOVProfilerPass(*PassRegistry::getPassRegistry());
+ }
+ GCOVProfiler(bool EmitNotes, bool EmitData)
+ : ModulePass(ID), EmitNotes(EmitNotes), EmitData(EmitData) {
+ assert((EmitNotes || EmitData) && "GCOVProfiler asked to do nothing?");
initializeGCOVProfilerPass(*PassRegistry::getPassRegistry());
}
virtual const char *getPassName() const {
@@ -70,6 +76,9 @@
SmallVector<std::pair<GlobalVariable *,
uint32_t>, 8> &);
+ bool EmitNotes;
+ bool EmitData;
+
Module *Mod;
LLVMContext *Ctx;
};
@@ -79,7 +88,9 @@
INITIALIZE_PASS(GCOVProfiler, "insert-gcov-profiling",
"Insert instrumentation for GCOV profiling", false, false)
-ModulePass *llvm::createGCOVProfilerPass() { return new GCOVProfiler(); }
+ModulePass *llvm::createGCOVProfilerPass(bool EmitNotes, bool EmitData) {
+ return new GCOVProfiler(EmitNotes, EmitData);
+}
static DISubprogram FindSubprogram(DIScope scope) {
while (!scope.isSubprogram()) {
@@ -301,8 +312,9 @@
DebugInfoFinder DIF;
DIF.processModule(*Mod);
- EmitGCNO(DIF);
- return EmitProfileArcs(DIF);
+ if (EmitNotes) EmitGCNO(DIF);
+ if (EmitData) return EmitProfileArcs(DIF);
+ return false;
}
void GCOVProfiler::EmitGCNO(DebugInfoFinder &DIF) {