Fix a silly bug that Nicholas noticed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44324 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/MemoryDependenceAnalysis.cpp b/lib/Analysis/MemoryDependenceAnalysis.cpp
index 68366f6d912dcaf17ef11c18f5482aa6bd224e3e..dd567aac95dc35c854963a226940f30b96158b74 100644 (file)
--- a/lib/Analysis/MemoryDependenceAnalysis.cpp
+++ b/lib/Analysis/MemoryDependenceAnalysis.cpp
@@ -94,7 +94,8 @@ Instruction* MemoryDependenceAnalysis::getCallSiteDependency(CallSite C,
       
       // FreeInsts erase the entire structure
       pointerSize = ~0UL;
-    } else if (CallSite::get(QI).getInstruction() != 0) {
+    } else if (CallSite::get(QI).getInstruction() != 0 &&
+               cast<CallInst>(QI)->getCalledFunction()) {
       AliasAnalysis::ModRefBehavior result =
                    AA.getModRefBehavior(cast<CallInst>(QI)->getCalledFunction(),
                                         CallSite::get(QI));