1 files changed, 3 insertions, 0 deletions

diff --git a/contrib/llvm/lib/Support/FileOutputBuffer.cpp b/contrib/llvm/lib/Support/FileOutputBuffer.cpp
index 651e679f2cb5..2c7bf0435d88 100644
--- a/contrib/llvm/lib/Support/FileOutputBuffer.cpp
+++ b/contrib/llvm/lib/Support/FileOutputBuffer.cpp
@@ -32,6 +32,9 @@ FileOutputBuffer::FileOutputBuffer(std::unique_ptr<mapped_file_region> R,
     : Region(std::move(R)), FinalPath(Path), TempPath(TmpPath) {}
 
 FileOutputBuffer::~FileOutputBuffer() {
+  // Close the mapping before deleting the temp file, so that the removal
+  // succeeds.
+  Region.reset();
   sys::fs::remove(Twine(TempPath));
 }