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[DAGCombiner] Use const APInt& for getConstantOperandAPInt results. NFCI. 

Avoid unnecessary instantiation.

Noticed while removing unnecessary autos
This commit is contained in:
Simon Pilgrim 2020-12-03 11:55:59 +00:00
parent 8eedd18fcb
commit 6f4ee6f870
1 changed files with 11 additions and 12 deletions
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23
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -2479,8 +2479,8 @@ SDValue DAGCombiner::visitADD(SDNode *N) {
// Fold (add (vscale * C0), (vscale * C1)) to (vscale * (C0 + C1)).
if (N0.getOpcode() == ISD::VSCALE && N1.getOpcode() == ISD::VSCALE) {
APInt C0 = N0->getConstantOperandAPInt(0);
APInt C1 = N1->getConstantOperandAPInt(0);
const APInt &C0 = N0->getConstantOperandAPInt(0);
const APInt &C1 = N1->getConstantOperandAPInt(0);
return DAG.getVScale(DL, VT, C0 + C1);
}
@ -2488,9 +2488,9 @@ SDValue DAGCombiner::visitADD(SDNode *N) {
if ((N0.getOpcode() == ISD::ADD) &&
(N0.getOperand(1).getOpcode() == ISD::VSCALE) &&
(N1.getOpcode() == ISD::VSCALE)) {
auto VS0 = N0.getOperand(1)->getConstantOperandAPInt(0);
auto VS1 = N1->getConstantOperandAPInt(0);
auto VS = DAG.getVScale(DL, VT, VS0 + VS1);
const APInt &VS0 = N0.getOperand(1)->getConstantOperandAPInt(0);
const APInt &VS1 = N1->getConstantOperandAPInt(0);
SDValue VS = DAG.getVScale(DL, VT, VS0 + VS1);
return DAG.getNode(ISD::ADD, DL, VT, N0.getOperand(0), VS);
}
@ -3436,7 +3436,7 @@ SDValue DAGCombiner::visitSUB(SDNode *N) {
// canonicalize (sub X, (vscale * C)) to (add X, (vscale * -C))
if (N1.getOpcode() == ISD::VSCALE) {
APInt IntVal = N1.getConstantOperandAPInt(0);
const APInt &IntVal = N1.getConstantOperandAPInt(0);
return DAG.getNode(ISD::ADD, DL, VT, N0, DAG.getVScale(DL, VT, -IntVal));
}
@ -3809,8 +3809,8 @@ SDValue DAGCombiner::visitMUL(SDNode *N) {
// Fold (mul (vscale * C0), C1) to (vscale * (C0 * C1)).
if (N0.getOpcode() == ISD::VSCALE)
if (ConstantSDNode *NC1 = isConstOrConstSplat(N1)) {
APInt C0 = N0.getConstantOperandAPInt(0);
APInt C1 = NC1->getAPIntValue();
const APInt &C0 = N0.getConstantOperandAPInt(0);
const APInt &C1 = NC1->getAPIntValue();
return DAG.getVScale(SDLoc(N), VT, C0 * C1);
}
@ -8223,10 +8223,9 @@ SDValue DAGCombiner::visitSHL(SDNode *N) {
// Fold (shl (vscale * C0), C1) to (vscale * (C0 << C1)).
if (N0.getOpcode() == ISD::VSCALE)
if (ConstantSDNode *NC1 = isConstOrConstSplat(N->getOperand(1))) {
auto DL = SDLoc(N);
APInt C0 = N0.getConstantOperandAPInt(0);
APInt C1 = NC1->getAPIntValue();
return DAG.getVScale(DL, VT, C0 << C1);
const APInt &C0 = N0.getConstantOperandAPInt(0);
const APInt &C1 = NC1->getAPIntValue();
return DAG.getVScale(SDLoc(N), VT, C0 << C1);
}
return SDValue();