Fix a failure I accidentally caused in my last commit by mishandling the

removal of redundant phis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40650 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/GVN.cpp

@@ -747,6 +747,8 @@ Value *GVN::GetValueForBlock(BasicBlock *BB, LoadInst* orig,
     PN->replaceAllUsesWith(first);
     PN->eraseFromParent();
     
+    Phis[BB] = first;
+    
     return first;
   }