[llvm] r318787 - Fix r318786

[Hans Wennborg via llvm-commits]

Author: hans
Date: Tue Nov 21 10:00:01 2017
New Revision: 318787

URL: http://llvm.org/viewvc/llvm-project?rev=318787&view=rev
Log:
Fix r318786

Modified:
    llvm/trunk/lib/Analysis/MemorySSA.cpp

Modified: llvm/trunk/lib/Analysis/MemorySSA.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/MemorySSA.cpp?rev=318787&r1=318786&r2=318787&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/MemorySSA.cpp (original)
+++ llvm/trunk/lib/Analysis/MemorySSA.cpp Tue Nov 21 10:00:01 2017
@@ -260,10 +260,10 @@ static bool instructionClobbersQuery(Mem
     }
   }
 
-  /*if (UseCS) {
+  if (UseCS) {
     ModRefInfo I = AA.getModRefInfo(DefInst, UseCS);
     return I != MRI_NoModRef;
-  }*/
+  }
 
   if (auto *DefLoad = dyn_cast<LoadInst>(DefInst)) {
     if (auto *UseLoad = dyn_cast<LoadInst>(UseInst)) {