From c08fa185961a38a1d972ccc7267206d0382f81f3 Mon Sep 17 00:00:00 2001
From: Matt Beaumont-Gay <matthewbg@google.com>
Date: Fri, 16 Nov 2012 01:14:52 +0000
Subject: [PATCH] Fix PR14321, a crash when Clang is built with GCC 4.7 at -O1
 or greater.

GCC 4.7 reuses stack slots fairly aggressively, which exposes more temporary
lifetime bugs.

No new test, this was caught by the existing CodeGenCXX/mangle-ms-templates.cpp.

llvm-svn: 168124
---
 clang/lib/AST/MicrosoftMangle.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp
index 98da920..7a12c4d 100644
--- a/clang/lib/AST/MicrosoftMangle.cpp
+++ b/clang/lib/AST/MicrosoftMangle.cpp
@@ -373,7 +373,7 @@ isTemplate(const NamedDecl *ND,
       dyn_cast<ClassTemplateSpecializationDecl>(ND)) {
     TypeSourceInfo *TSI = Spec->getTypeAsWritten();
     if (TSI) {
-      TemplateSpecializationTypeLoc &TSTL =
+      TemplateSpecializationTypeLoc TSTL =
         cast<TemplateSpecializationTypeLoc>(TSI->getTypeLoc());
       TemplateArgumentListInfo LI(TSTL.getLAngleLoc(), TSTL.getRAngleLoc());
       for (unsigned i = 0, e = TSTL.getNumArgs(); i != e; ++i)
-- 
2.7.4