From: Vitaly Buka <vitalybuka@google.com>
Date: Mon, 5 Dec 2016 18:30:22 +0000 (+0000)
Subject: Fix stack-use-after-scope in EvaluateImplicitExceptionSpec
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ffdb307f513c0496d5a4eaf205179e09eb5ac19a;p=clang

Fix stack-use-after-scope in EvaluateImplicitExceptionSpec

Summary:
getExceptionSpec returns structure with pointers to temporarily object created
by computeImplicitExceptionSpec.

Reviewers: rsmith

Subscribers: aizatsky, cfe-commits

Differential Revision: https://reviews.llvm.org/D27420

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@288685 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index c14734182f..f5a2c0dd4d 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -6100,7 +6100,8 @@ void Sema::EvaluateImplicitExceptionSpec(SourceLocation Loc, CXXMethodDecl *MD)
     return;
 
   // Evaluate the exception specification.
-  auto ESI = computeImplicitExceptionSpec(*this, Loc, MD).getExceptionSpec();
+  auto IES = computeImplicitExceptionSpec(*this, Loc, MD);
+  auto ESI = IES.getExceptionSpec();
 
   // Update the type of the special member to use it.
   UpdateExceptionSpec(MD, ESI);