Minor simplification.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136202 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp
index 05c9c09..a11142d 100644
--- a/lib/Analysis/AliasSetTracker.cpp
+++ b/lib/Analysis/AliasSetTracker.cpp
@@ -185,8 +185,8 @@
   for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i) {
     CallSite C1 = getUnknownInst(i), C2 = Inst;
     if (!C1 || !C2 ||
-        AA.getModRefInfo(getUnknownInst(i), Inst) != AliasAnalysis::NoModRef ||
-        AA.getModRefInfo(Inst, getUnknownInst(i)) != AliasAnalysis::NoModRef)
+        AA.getModRefInfo(C1, C2) != AliasAnalysis::NoModRef ||
+        AA.getModRefInfo(C2, C1) != AliasAnalysis::NoModRef)
       return true;
   }