GCOV: Make sure that function idents in the .gcda and .gcno match
When generating gcov compatible profiling, we sometimes skip emitting
data for functions for one reason or another. However, this was
emitting different function IDs in the .gcno and .gcda files, because
the .gcno case was using the loop index before skipping functions and
the .gcda the array index after. This resulted in completely invalid
gcov data.
This fixes the problem by making the .gcno loop track the ID
separately from the loop index.
llvm-svn: 221441
diff --git a/llvm/lib/IR/GCOV.cpp b/llvm/lib/IR/GCOV.cpp
index 566c5b9..245c500 100644
--- a/llvm/lib/IR/GCOV.cpp
+++ b/llvm/lib/IR/GCOV.cpp
@@ -298,7 +298,8 @@
/// dump - Dump GCOVFunction content to dbgs() for debugging purposes.
void GCOVFunction::dump() const {
- dbgs() << "===== " << Name << " @ " << Filename << ":" << LineNumber << "\n";
+ dbgs() << "===== " << Name << " (" << Ident << ") @ " << Filename << ":"
+ << LineNumber << "\n";
for (const auto &Block : Blocks)
Block->dump();
}