From: Chris Lattner <sabre@nondot.org>
Date: Tue, 9 Sep 2003 18:16:08 +0000 (+0000)
Subject: Fix bug: InstCombine/2003-09-09-VolatileLoadElim.ll
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=76b5f88c57846b453d3b115930fe83089025ccca;p=oota-llvm.git

Fix bug: InstCombine/2003-09-09-VolatileLoadElim.ll
Loads "mayWriteToMemory" if they are volatile


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8422 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/iMemory.h b/include/llvm/iMemory.h
index 4cc76e46d7a..d3dd9fd8116 100644
--- a/include/llvm/iMemory.h
+++ b/include/llvm/iMemory.h
@@ -159,6 +159,8 @@ public:
 
   virtual Instruction *clone() const { return new LoadInst(*this); }
 
+  virtual bool mayWriteToMemory() const { return isVolatile(); }
+
   Value *getPointerOperand() { return getOperand(0); }
   const Value *getPointerOperand() const { return getOperand(0); }
   static unsigned getPointerOperandIndex() { return 0U; }