From c69f13bfe1b7c0f663ea204f6e961d669f4bab02 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Fri, 12 Dec 2014 18:13:23 +0000
Subject: Move the resize file feature from mapped_file_region to the only
 user.

This removes a duplicated stat on every file that llvm-ar looks at.

llvm-svn: 224138
---
 llvm/lib/Support/FileOutputBuffer.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/Support/FileOutputBuffer.cpp')

diff --git a/llvm/lib/Support/FileOutputBuffer.cpp b/llvm/lib/Support/FileOutputBuffer.cpp
index e6e4da34652..df4ae9322bc 100644
--- a/llvm/lib/Support/FileOutputBuffer.cpp
+++ b/llvm/lib/Support/FileOutputBuffer.cpp
@@ -77,6 +77,10 @@ FileOutputBuffer::create(StringRef FilePath, size_t Size,
   if (EC)
     return EC;
 
+  EC = sys::fs::resize_file(FD, Size);
+  if (EC)
+    return EC;
+
   auto MappedFile = llvm::make_unique<mapped_file_region>(
       FD, mapped_file_region::readwrite, Size, 0, EC);
   int Ret = close(FD);
-- 
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