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-rw-r--r--llvm/unittests/ProfileData/CoverageMappingTest.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/unittests/ProfileData/CoverageMappingTest.cpp b/llvm/unittests/ProfileData/CoverageMappingTest.cpp
index 47809b14faa..b12935fbd02 100644
--- a/llvm/unittests/ProfileData/CoverageMappingTest.cpp
+++ b/llvm/unittests/ProfileData/CoverageMappingTest.cpp
@@ -164,7 +164,7 @@ struct CoverageMappingTest : ::testing::Test {
return OS.str();
}
- void readCoverageRegions(std::string Coverage,
+ void readCoverageRegions(const std::string &Coverage,
OutputFunctionCoverageData &Data) {
SmallVector<StringRef, 8> Filenames(Files.size());
for (const auto &E : Files)
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