From: Andrew Lenharth <andrewl@lenharth.org>
Date: Sun, 19 Jun 2005 14:46:20 +0000 (+0000)
Subject: fix DCE + va_arg problem
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=c64b64a2044b6c01a42cb35c94b440f799b1340d;p=oota-llvm.git

fix DCE + va_arg problem


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22264 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Instructions.h b/include/llvm/Instructions.h
index 53cfe6ae1d4..b1214afef3d 100644
--- a/include/llvm/Instructions.h
+++ b/include/llvm/Instructions.h
@@ -681,6 +681,7 @@ public:
   }
 
   virtual VAArgInst *clone() const;
+  bool mayWriteToMemory() const { return true; }
 
   // Methods for support type inquiry through isa, cast, and dyn_cast:
   static inline bool classof(const VAArgInst *) { return true; }