From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Wed, 6 Jul 2011 16:43:46 +0000 (+0000)
Subject: SmallVectorize a critical vector.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e855448bc8dddac24a72ba8dc7e936d31e896fe4;p=clang

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.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134496 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/SourceManager.cpp b/lib/Basic/SourceManager.cpp
index 92557a421f..de709de9a2 100644
--- a/lib/Basic/SourceManager.cpp
+++ b/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);