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[DAGCombiner] reduce code duplication; NFC 

llvm-svn: 357498
This commit is contained in:
Sanjay Patel 2019-04-02 17:20:54 +00:00
parent 0d3a533270
commit 7cb7daabbb
1 changed files with 8 additions and 8 deletions
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16
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -18689,10 +18689,11 @@ SDValue DAGCombiner::SimplifyVBinOp(SDNode *N) {
SDValue RHS = N->getOperand(1);
SDValue Ops[] = {LHS, RHS};
EVT VT = N->getValueType(0);
unsigned Opcode = N->getOpcode();
// See if we can constant fold the vector operation.
if (SDValue Fold = DAG.FoldConstantVectorArithmetic(
N->getOpcode(), SDLoc(LHS), LHS.getValueType(), Ops, N->getFlags()))
Opcode, SDLoc(LHS), LHS.getValueType(), Ops, N->getFlags()))
return Fold;
// Type legalization might introduce new shuffles in the DAG.
@ -18707,9 +18708,8 @@ SDValue DAGCombiner::SimplifyVBinOp(SDNode *N) {
if (SVN0->getMask().equals(SVN1->getMask())) {
SDValue UndefVector = LHS.getOperand(1);
SDValue NewBinOp = DAG.getNode(N->getOpcode(), SDLoc(N), VT,
LHS.getOperand(0), RHS.getOperand(0),
N->getFlags());
SDValue NewBinOp = DAG.getNode(Opcode, SDLoc(N), VT, LHS.getOperand(0),
RHS.getOperand(0), N->getFlags());
AddUsersToWorklist(N);
return DAG.getVectorShuffle(VT, SDLoc(N), NewBinOp, UndefVector,
SVN0->getMask());
@ -18729,12 +18729,12 @@ SDValue DAGCombiner::SimplifyVBinOp(SDNode *N) {
SDValue Z = LHS.getOperand(2);
EVT NarrowVT = X.getValueType();
if (NarrowVT == Y.getValueType() &&
TLI.isOperationLegalOrCustomOrPromote(N->getOpcode(), NarrowVT)) {
TLI.isOperationLegalOrCustomOrPromote(Opcode, NarrowVT)) {
// (binop undef, undef) may not return undef, so compute that result.
SDLoc DL(N);
SDValue VecC = DAG.getNode(N->getOpcode(), DL, VT, DAG.getUNDEF(VT),
DAG.getUNDEF(VT));
SDValue NarrowBO = DAG.getNode(N->getOpcode(), DL, NarrowVT, X, Y);
SDValue VecC =
DAG.getNode(Opcode, DL, VT, DAG.getUNDEF(VT), DAG.getUNDEF(VT));
SDValue NarrowBO = DAG.getNode(Opcode, DL, NarrowVT, X, Y);
return DAG.getNode(ISD::INSERT_SUBVECTOR, DL, VT, VecC, NarrowBO, Z);
}
}