return false;
}
+static bool functionHasLines(Function *F) {
+ // Check whether this function actually has any source lines. Not only
+ // do these waste space, they also can crash gcov.
+ for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
+ for (BasicBlock::iterator I = BB->begin(), IE = BB->end();
+ I != IE; ++I) {
+ const DebugLoc &Loc = I->getDebugLoc();
+ if (Loc.isUnknown()) continue;
+ if (Loc.getLine() != 0)
+ return true;
+ }
+ }
+ return false;
+}
+
void GCOVProfiler::emitProfileNotes() {
NamedMDNode *CU_Nodes = M->getNamedMetadata("llvm.dbg.cu");
if (!CU_Nodes) return;
Function *F = SP.getFunction();
if (!F) continue;
+ if (!functionHasLines(F)) continue;
// gcov expects every function to start with an entry block that has a
// single successor, so split the entry block to make sure of that.
continue;
Function *F = SP.getFunction();
if (!F) continue;
+ if (!functionHasLines(F)) continue;
if (!Result) Result = true;
unsigned Edges = 0;
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {