[llvm] 2d0fcf7 - Precommit NFC part of DAGCombiner change. NFC.

[Stanislav Mekhanoshin via llvm-commits]

Author: Stanislav Mekhanoshin
Date: 2020-01-22T09:01:22-08:00
New Revision: 2d0fcf786c5c7f384e30a955d2e7da46d1f98949

URL: https://github.com/llvm/llvm-project/commit/2d0fcf786c5c7f384e30a955d2e7da46d1f98949
DIFF: https://github.com/llvm/llvm-project/commit/2d0fcf786c5c7f384e30a955d2e7da46d1f98949.diff

LOG: Precommit NFC part of DAGCombiner change. NFC.

This is NFC part of DAGCombiner::visitEXTRACT_SUBVECTOR()
change in the D73132.

Added: 
    

Modified: 
    llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 97437c6a56f2..3d01e55b7809 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -18565,16 +18565,18 @@ SDValue DAGCombiner::visitEXTRACT_SUBVECTOR(SDNode *N) {
       unsigned DestSrcRatio = DestNumElts / SrcNumElts;
       if ((NVT.getVectorNumElements() % DestSrcRatio) == 0) {
         unsigned NewExtNumElts = NVT.getVectorNumElements() / DestSrcRatio;
-        EVT NewExtVT = EVT::getVectorVT(*DAG.getContext(),
-                                        SrcVT.getScalarType(), NewExtNumElts);
-        if ((N->getConstantOperandVal(1) % DestSrcRatio) == 0 &&
-            TLI.isOperationLegalOrCustom(ISD::EXTRACT_SUBVECTOR, NewExtVT)) {
-          unsigned IndexValScaled = N->getConstantOperandVal(1) / DestSrcRatio;
+        EVT ScalarVT = SrcVT.getScalarType();
+        if ((N->getConstantOperandVal(1) % DestSrcRatio) == 0) {
           SDLoc DL(N);
-          SDValue NewIndex = DAG.getVectorIdxConstant(IndexValScaled, DL);
-          SDValue NewExtract = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, NewExtVT,
-                                           V.getOperand(0), NewIndex);
-          return DAG.getBitcast(NVT, NewExtract);
+          unsigned IndexValScaled = N->getConstantOperandVal(1) / DestSrcRatio;
+          EVT NewExtVT = EVT::getVectorVT(*DAG.getContext(),
+                                          ScalarVT, NewExtNumElts);
+          if (TLI.isOperationLegalOrCustom(ISD::EXTRACT_SUBVECTOR, NewExtVT)) {
+            SDValue NewIndex = DAG.getVectorIdxConstant(IndexValScaled, DL);
+            SDValue NewExtract = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, NewExtVT,
+                                             V.getOperand(0), NewIndex);
+            return DAG.getBitcast(NVT, NewExtract);
+          }
         }
       }
     }