tidy up

1. remove duplicate local variable
2. add local variable with name to match comment
3. remove useless comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237715 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 20d78b87154ee4a367d21a612746ff06e895e4bc..8e1dff8023ee93a8d4510603ef67a1fdfbbf2c5f 100644 (file)
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -8286,15 +8286,15 @@ SDValue DAGCombiner::visitFDIV(SDNode *N) {
     }
 
     if (TLI.combineRepeatedFPDivisors(Users.size())) {
-      SDLoc DL(N);
-      SDValue FPOne = DAG.getConstantFP(1.0, DL, VT); // floating point 1.0
+      SDValue FPOne = DAG.getConstantFP(1.0, DL, VT);
       SDValue Reciprocal = DAG.getNode(ISD::FDIV, DL, VT, FPOne, N1);
 
       // Dividend / Divisor -> Dividend * Reciprocal
       for (auto U : Users) {
-        if (U->getOperand(0) != FPOne) {
-          SDValue NewNode = DAG.getNode(ISD::FMUL, SDLoc(U), VT,
-                                        U->getOperand(0), Reciprocal);
+        SDValue Dividend = U->getOperand(0);
+        if (Dividend != FPOne) {
+          SDValue NewNode = DAG.getNode(ISD::FMUL, SDLoc(U), VT, Dividend,
+                                        Reciprocal);
           DAG.ReplaceAllUsesWith(U, NewNode.getNode());
         }
       }