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[TargetLowering] Use pre-computed Shift value type in BuildUDIV (NFCI) 

This was missed in D49248

llvm-svn: 339146
This commit is contained in:
Simon Pilgrim 2018-08-07 14:40:21 +00:00
parent 1fe3375620
commit 6943e39353
1 changed files with 5 additions and 9 deletions
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14
llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
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@ -3551,10 +3551,8 @@ SDValue TargetLowering::BuildUDIV(SDNode *N, SelectionDAG &DAG,
bool IsAfterLegalization,
SmallVectorImpl<SDNode *> &Created) const {
SDLoc dl(N);
auto &DL = DAG.getDataLayout();
EVT VT = N->getValueType(0);
EVT ShVT = getShiftAmountTy(VT, DL);
EVT ShVT = getShiftAmountTy(VT, DAG.getDataLayout());
// Check to see if we can do this.
// FIXME: We should be more aggressive here.
@ -3669,13 +3667,11 @@ SDValue TargetLowering::BuildUDIV(SDNode *N, SelectionDAG &DAG,
// For vectors we might have a mix of non-NPQ/NPQ paths, so use
// MULHU to act as a SRL-by-1 for NPQ, else multiply by zero.
if (VT.isVector()) {
if (VT.isVector())
NPQ = GetMULHU(NPQ, NPQFactor);
} else {
NPQ = DAG.getNode(
ISD::SRL, dl, VT, NPQ,
DAG.getConstant(1, dl, getShiftAmountTy(NPQ.getValueType(), DL)));
}
else
NPQ = DAG.getNode(ISD::SRL, dl, VT, NPQ, DAG.getConstant(1, dl, ShVT));
Created.push_back(NPQ.getNode());
Q = DAG.getNode(ISD::ADD, dl, VT, NPQ, Q);