From 37d30835f0592c32aa403e8ade88b8fc2ad2d612 Mon Sep 17 00:00:00 2001
From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Wed, 6 Jul 2011 16:43:46 +0000
Subject: [PATCH] SmallVectorize a critical vector.

The small number of elements was determined by taking the median
file length in clang+llvm and /usr/include on OS X with xcode installed.

llvm-svn: 134496
---
 clang/lib/Basic/SourceManager.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Basic/SourceManager.cpp b/clang/lib/Basic/SourceManager.cpp
index 92557a421f11..de709de9a22e 100644
--- a/clang/lib/Basic/SourceManager.cpp
+++ b/clang/lib/Basic/SourceManager.cpp
@@ -917,7 +917,7 @@ static void ComputeLineNumbers(Diagnostic &Diag, ContentCache *FI,
 
   // Find the file offsets of all of the *physical* source lines.  This does
   // not look at trigraphs, escaped newlines, or anything else tricky.
-  std::vector<unsigned> LineOffsets;
+  llvm::SmallVector<unsigned, 256> LineOffsets;
 
   // Line #1 starts at char 0.
   LineOffsets.push_back(0);