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-rw-r--r--clang/lib/Frontend/InitHeaderSearch.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/clang/lib/Frontend/InitHeaderSearch.cpp b/clang/lib/Frontend/InitHeaderSearch.cpp
index 733adbf8b92..6ea7ecb8703 100644
--- a/clang/lib/Frontend/InitHeaderSearch.cpp
+++ b/clang/lib/Frontend/InitHeaderSearch.cpp
@@ -113,6 +113,7 @@ void InitHeaderSearch::AddPath(const llvm::Twine &Path,
if (Group == System && !IgnoreSysRoot && MappedPath.isAbsolute() &&
IncludeSysroot.isValid() && IncludeSysroot.isAbsolute() &&
IncludeSysroot != llvm::sys::Path::GetRootDirectory()) {
+ MappedPathStorage.clear();
MappedPathStr =
(IncludeSysroot.str() + Path).toStringRef(MappedPathStorage);
}
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