From: Owen Anderson <resistor@mac.com>
Date: Tue, 13 May 2008 21:25:37 +0000 (+0000)
Subject: Fix memdep's handling of invokes when finding the dependency of another call
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=ff5a535378f700bf5e48ef17ad74eac21669b78d;p=oota-llvm.git

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
---

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) {