From: Matt Beaumont-Gay <matthewbg@google.com>
Date: Fri, 16 Nov 2012 01:14:52 +0000 (+0000)
Subject: Fix PR14321, a crash when Clang is built with GCC 4.7 at -O1 or greater.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0bbf1c668e8cb1a3e5b1385c2fd5cd6c73f481c0;p=clang

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.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168124 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index 98da920a8f..7a12c4da95 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/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)