From ff5a535378f700bf5e48ef17ad74eac21669b78d Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Tue, 13 May 2008 21:25:37 +0000
Subject: [PATCH] Fix memdep's handling of invokes when finding the dependency
 of another call instruction.  This fixes some Ada miscompiles reported in
 PR2324.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51069 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/MemoryDependenceAnalysis.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Analysis/MemoryDependenceAnalysis.cpp b/lib/Analysis/MemoryDependenceAnalysis.cpp
index 4af7b42fb79..7a6633f8fed 100644
--- a/lib/Analysis/MemoryDependenceAnalysis.cpp
+++ b/lib/Analysis/MemoryDependenceAnalysis.cpp
@@ -129,7 +129,7 @@ Instruction* MemoryDependenceAnalysis::getCallSiteDependency(CallSite C,
       
       // FreeInsts erase the entire structure
       pointerSize = ~0UL;
-    } else if (isa<CallInst>(QI)) {
+    } else if (CallSite::get(QI).getInstruction() != 0) {
       AliasAnalysis::ModRefBehavior result =
                    AA.getModRefBehavior(CallSite::get(QI));
       if (result != AliasAnalysis::DoesNotAccessMemory) {