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-rw-r--r--llvm/lib/Support/Windows/Path.inc2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Support/Windows/Path.inc b/llvm/lib/Support/Windows/Path.inc
index 72604c0e406..c17c5c61b5a 100644
--- a/llvm/lib/Support/Windows/Path.inc
+++ b/llvm/lib/Support/Windows/Path.inc
@@ -151,7 +151,7 @@ UniqueID file_status::getUniqueID() const {
return UniqueID(VolumeSerialNumber, FileID);
}
-ErrorOr<space_info> disk_space(const Twine Path) {
+ErrorOr<space_info> disk_space(const Twine &Path) {
PULARGE_INTEGER Avail, Total, Free;
if (!::GetDiskFreeSpaceExA(Path.str().c_str(), &Avail, &Total, &Free))
return mapWindowsError(::GetLastError());
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