1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp b/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp
index 9fffb24..94bd480 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp
@@ -567,7 +567,8 @@ class VersionedCovMapFuncRecordReader : public CovMapFuncRecordReader {
       if (Error Err = CFR->template getFuncName<Endian>(ProfileNames, FuncName))
         return Err;
       if (FuncName.empty())
-        return make_error<InstrProfError>(instrprof_error::malformed);
+        return make_error<InstrProfError>(instrprof_error::malformed,
+                                          "function name is empty");
       ++CovMapNumUsedRecords;
       Records.emplace_back(Version, FuncName, FuncHash, Mapping,
                            FileRange.StartingIndex, FileRange.Length);