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-rw-r--r--llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp b/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp
index a34f359cd54..fa42fce4751 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp
@@ -419,6 +419,8 @@ class VersionedCovMapFuncRecordReader : public CovMapFuncRecordReader {
StringRef FuncName;
if (Error Err = CFR->template getFuncName<Endian>(ProfileNames, FuncName))
return Err;
+ if (FuncName.empty())
+ return make_error<InstrProfError>(instrprof_error::malformed);
Records.emplace_back(Version, FuncName, FuncHash, Mapping, FilenamesBegin,
Filenames.size() - FilenamesBegin);
return Error::success();
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