[NewGVN] Prefer `auto` to explicit type when the latter is obvious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290499 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/NewGVN.cpp b/lib/Transforms/Scalar/NewGVN.cpp
index 7ef795fedf0fbdbe367c349566b80f62da7d09fc..0fa7181c489ac8b3123bab72a353024e831cc7f7 100644 (file)
--- a/lib/Transforms/Scalar/NewGVN.cpp
+++ b/lib/Transforms/Scalar/NewGVN.cpp
@@ -1045,7 +1045,7 @@ void NewGVN::performCongruenceFinding(Value *V, const Expression *E) {
       }
     }
     markUsersTouched(V);
-    if (Instruction *I = dyn_cast<Instruction>(V))
+    if (auto *I = dyn_cast<Instruction>(V))
       if (MemoryAccess *MA = MSSA->getMemoryAccess(I))
         markMemoryUsersTouched(MA);
   }