[X86] getTargetVShiftByConstNode - reduce variable scope. NFCI.

Fixes cppcheck warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364561 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index b63dcd269137a26434d5c908a5d49055257a4b70..63175256a5b88d1c5c05cbba6e615f0ecaf35140 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -21985,42 +21985,41 @@ static SDValue getTargetVShiftByConstNode(unsigned Opc, const SDLoc &dl, MVT VT,
   if (ISD::isBuildVectorOfConstantSDNodes(SrcOp.getNode())) {
     SmallVector<SDValue, 8> Elts;
     unsigned NumElts = SrcOp->getNumOperands();
-    ConstantSDNode *ND;
 
-    switch(Opc) {
+    switch (Opc) {
     default: llvm_unreachable("Unknown opcode!");
     case X86ISD::VSHLI:
-      for (unsigned i=0; i!=NumElts; ++i) {
+      for (unsigned i = 0; i != NumElts; ++i) {
         SDValue CurrentOp = SrcOp->getOperand(i);
         if (CurrentOp->isUndef()) {
           Elts.push_back(CurrentOp);
           continue;
         }
-        ND = cast<ConstantSDNode>(CurrentOp);
+        auto *ND = cast<ConstantSDNode>(CurrentOp);
         const APInt &C = ND->getAPIntValue();
         Elts.push_back(DAG.getConstant(C.shl(ShiftAmt), dl, ElementType));
       }
       break;
     case X86ISD::VSRLI:
-      for (unsigned i=0; i!=NumElts; ++i) {
+      for (unsigned i = 0; i != NumElts; ++i) {
         SDValue CurrentOp = SrcOp->getOperand(i);
         if (CurrentOp->isUndef()) {
           Elts.push_back(CurrentOp);
           continue;
         }
-        ND = cast<ConstantSDNode>(CurrentOp);
+        auto *ND = cast<ConstantSDNode>(CurrentOp);
         const APInt &C = ND->getAPIntValue();
         Elts.push_back(DAG.getConstant(C.lshr(ShiftAmt), dl, ElementType));
       }
       break;
     case X86ISD::VSRAI:
-      for (unsigned i=0; i!=NumElts; ++i) {
+      for (unsigned i = 0; i != NumElts; ++i) {
         SDValue CurrentOp = SrcOp->getOperand(i);
         if (CurrentOp->isUndef()) {
           Elts.push_back(CurrentOp);
           continue;
         }
-        ND = cast<ConstantSDNode>(CurrentOp);
+        auto *ND = cast<ConstantSDNode>(CurrentOp);
         const APInt &C = ND->getAPIntValue();
         Elts.push_back(DAG.getConstant(C.ashr(ShiftAmt), dl, ElementType));
       }