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-rw-r--r--llvm/lib/ProfileData/Coverage/CoverageMapping.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
index 015b3c6c202..953972968d6 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
@@ -200,6 +200,9 @@ Error CoverageMapping::loadFunctionRecord(
const CoverageMappingRecord &Record,
IndexedInstrProfReader &ProfileReader) {
StringRef OrigFuncName = Record.FunctionName;
+ if (OrigFuncName.empty())
+ return make_error<CoverageMapError>(coveragemap_error::malformed);
+
if (Record.Filenames.empty())
OrigFuncName = getFuncNameWithoutPrefix(OrigFuncName);
else
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