From: Sebastian Redl <sebastian.redl@getdesigned.at>
Date: Fri, 9 Jan 2009 21:09:38 +0000 (+0000)
Subject: Prevent a segfault for vaarg expressions on unsupported architectures.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0262f02cbaa35cafb61b1b994e0adff7c422a235;p=clang

Prevent a segfault for vaarg expressions on unsupported architectures.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62008 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp
index 834d7483ba..7571149b5a 100644
--- a/lib/CodeGen/CGExprAgg.cpp
+++ b/lib/CodeGen/CGExprAgg.cpp
@@ -278,9 +278,11 @@ void AggExprEmitter::VisitVAArgExpr(VAArgExpr *VE) {
   llvm::Value *ArgValue = CGF.EmitLValue(VE->getSubExpr()).getAddress();
   llvm::Value *ArgPtr = CGF.EmitVAArg(ArgValue, VE->getType());
 
-  if (!ArgPtr)
+  if (!ArgPtr) {
     CGF.ErrorUnsupported(VE, "aggregate va_arg expression");
-  
+    return;
+  }
+
   if (DestPtr)
     // FIXME: volatility
     CGF.EmitAggregateCopy(DestPtr, ArgPtr, VE->getType());