From d5a2f4406e8f31b41e8972891255309505c19eb4 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Tue, 7 Feb 2012 09:05:34 +0000
Subject: [PATCH] Reserve a moderate amount of space for the back-end
 arguments.

llvm-svn: 149973
---
 clang/lib/CodeGen/BackendUtil.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 1cbc69b03b6a..1707ec5ea5c9 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -247,6 +247,7 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
   }
 
   std::vector<const char *> BackendArgs;
+  BackendArgs.reserve(16);
   BackendArgs.push_back("clang"); // Fake program name.
   if (!CodeGenOpts.DebugPass.empty()) {
     BackendArgs.push_back("-debug-pass");