[NFC] Fix variables used only for assert in GVN

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315448 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index 135b33d84be33ecdd565792297bd91c173067cfb..3b689b03d47146ad672ca07dbb356d2e27227147 100644 (file)
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -2398,14 +2398,14 @@ GVN::fillImplicitControlFlowInfo(ReversePostOrderTraversal<Function *> &RPOT) {
     // must be removed once isGuaranteedToTransferExecutionToSuccessor is fixed.
     if (isGuaranteedToTransferExecutionToSuccessor(I))
       return false;
-    if (auto *LI = dyn_cast<LoadInst>(I)) {
-      assert(LI->isVolatile() && "Non-volatile load should transfer execution"
-                                 " to successor!");
+    if (isa<LoadInst>(I)) {
+      assert(cast<LoadInst>(I)->isVolatile() &&
+             "Non-volatile load should transfer execution to successor!");
       return false;
     }
-    if (auto *SI = dyn_cast<StoreInst>(I)) {
-      assert(SI->isVolatile() && "Non-volatile store should transfer execution"
-                                 " to successor!");
+    if (isa<StoreInst>(I)) {
+      assert(cast<StoreInst>(I)->isVolatile() &&
+             "Non-volatile store should transfer execution to successor!");
       return false;
     }
     return true;