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 92557a4..de709de 100644
--- a/lib/Basic/SourceManager.cpp
+++ b/lib/Basic/SourceManager.cpp
@@ -917,7 +917,7 @@
// 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);