From 83916498b80c4349b21f612b3c6dabc739517ed5 Mon Sep 17 00:00:00 2001
From: Chad Rosier <mcrosier@apple.com>
Date: Wed, 8 Aug 2012 20:37:31 +0000
Subject: [ms-inline asm] Add a very simple test case.  Basically, we're only
 testing for crashers at the moment (and coincidentally this case was causing
 a crash).

llvm-svn: 161520
---
 clang/lib/Sema/SemaStmt.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'clang/lib/Sema/SemaStmt.cpp')

diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index a8a06a93fcf..be905781637 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -2786,6 +2786,9 @@ static std::string PatchMSAsmString(Sema &SemaRef, bool &IsSimple,
                                     SourceLocation AsmLoc,
                                     ArrayRef<Token> AsmToks,
                                     const TargetInfo &TI) {
+  if (!AsmToks.size())
+    return "";
+
   std::string Res;
   IdentifierInfo *II = AsmToks[0].getIdentifierInfo();
   Res = II->getName().str();
@@ -2841,6 +2844,9 @@ static std::string PatchMSAsmString(Sema &SemaRef, bool &IsSimple,
 static std::string buildMSAsmString(Sema &SemaRef,
                                     ArrayRef<Token> AsmToks,
                                     ArrayRef<unsigned> LineEnds) {
+  if (!AsmToks.size())
+    return "";
+
   // Collect the tokens into a string
   SmallString<512> Asm;
   SmallString<512> TokenBuf;
-- 
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