From 4153e9fbb1562d765297fec58e903345c9f165c3 Mon Sep 17 00:00:00 2001
From: Martin Storsjo <martin@martin.st>
Date: Fri, 24 Aug 2018 18:36:22 +0000
Subject: [Support] Allow discarding a FileOutputBuffer without removing the
 memory mapping

Differential Revision: https://reviews.llvm.org/D51095

llvm-svn: 340634
---
 llvm/lib/Support/FileOutputBuffer.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'llvm/lib/Support')

diff --git a/llvm/lib/Support/FileOutputBuffer.cpp b/llvm/lib/Support/FileOutputBuffer.cpp
index 1214b5a0ba1..b8223126227 100644
--- a/llvm/lib/Support/FileOutputBuffer.cpp
+++ b/llvm/lib/Support/FileOutputBuffer.cpp
@@ -61,6 +61,12 @@ public:
     consumeError(Temp.discard());
   }
 
+  void discard() override {
+    // Delete the temp file if it still was open, but keeping the mapping
+    // active.
+    consumeError(Temp.discard());
+  }
+
 private:
   std::unique_ptr<fs::mapped_file_region> Buffer;
   fs::TempFile Temp;
-- 
cgit v1.2.3