[Coverage] Strip <unknown> from PGO names if no filenames are available
Patch suggested by David Li!
llvm-svn: 264586
diff --git a/llvm/lib/ProfileData/InstrProf.cpp b/llvm/lib/ProfileData/InstrProf.cpp
index 045ba1a..2446521 100644
--- a/llvm/lib/ProfileData/InstrProf.cpp
+++ b/llvm/lib/ProfileData/InstrProf.cpp
@@ -90,7 +90,7 @@
StringRef getFuncNameWithoutPrefix(StringRef PGOFuncName, StringRef FileName) {
if (FileName.empty())
- FileName = "<unknown>";
+ return PGOFuncName;
// Drop the file name including ':'. See also getPGOFuncName.
if (PGOFuncName.startswith(FileName))
PGOFuncName = PGOFuncName.drop_front(FileName.size() + 1);