From 889d683ee85fae0a895d2e360a6a2bfac1ad29e5 Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Thu, 26 Jun 2008 17:06:02 +0000
Subject: [PATCH] Don't create a whole new string just to copy the elements
 into it.

llvm-svn: 52785
---
 lib/CodeGen/MachineModuleInfo.cpp | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 1720745e445..60526643fdf 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -231,11 +231,9 @@ public:
   }
   virtual void Apply(std::string &Field) {
     Constant *C = CI->getOperand(I++);
-    std::string S;
-    if (GetConstantStringInfo(C, S))
-      Field = S;
-    else
-      Field = "";
+    // Fills in the string if it succeeds
+    if (!GetConstantStringInfo(C, Field))
+      Field.clear();
   }
   virtual void Apply(DebugInfoDesc *&Field) {
     Constant *C = CI->getOperand(I++);