[X86] Remove unneeded EVT variable. NFC

Immediately after it is created we check if its equal to another EVT. Then we inconsistently use one or the other variables in the code below.

Instead do the equality check directly on the getValueType result and remove the variable. Use the origina VT variable throughout the remaining code.

llvm-svn: 321406

1 files changed, 5 insertions, 6 deletions

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index fddceddba2f..10a4b5832e0 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -33042,8 +33042,7 @@ static SDValue WidenMaskArithmetic(SDNode *N, SelectionDAG &DAG,
     return SDValue();
 
   // The type of the truncated inputs.
-  EVT WideVT = N0->getOperand(0).getValueType();
-  if (WideVT != VT)
+  if (N0->getOperand(0).getValueType() != VT)
     return SDValue();
 
   // The right side has to be a 'trunc' or a constant vector.
@@ -33056,21 +33055,21 @@ static SDValue WidenMaskArithmetic(SDNode *N, SelectionDAG &DAG,
 
   const TargetLowering &TLI = DAG.getTargetLoweringInfo();
 
-  if (!TLI.isOperationLegalOrPromote(Narrow->getOpcode(), WideVT))
+  if (!TLI.isOperationLegalOrPromote(Narrow->getOpcode(), VT))
     return SDValue();
 
   // Set N0 and N1 to hold the inputs to the new wide operation.
   N0 = N0->getOperand(0);
   if (RHSConstSplat) {
-    N1 = DAG.getNode(ISD::ZERO_EXTEND, DL, WideVT.getVectorElementType(),
+    N1 = DAG.getNode(ISD::ZERO_EXTEND, DL, VT.getVectorElementType(),
                      SDValue(RHSConstSplat, 0));
-    N1 = DAG.getSplatBuildVector(WideVT, DL, N1);
+    N1 = DAG.getSplatBuildVector(VT, DL, N1);
   } else if (RHSTrunc) {
     N1 = N1->getOperand(0);
   }
 
   // Generate the wide operation.
-  SDValue Op = DAG.getNode(Narrow->getOpcode(), DL, WideVT, N0, N1);
+  SDValue Op = DAG.getNode(Narrow->getOpcode(), DL, VT, N0, N1);
   unsigned Opcode = N->getOpcode();
   switch (Opcode) {
   default: llvm_unreachable("Unexpected opcode");