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[X86] Remove call to ShrinkDemandedCosntant from the SHRUNKBLEND creation code. 

We only run this code if know the condition isn't a constant vector. ShrinkDemandedConstant isn't going to find any different.

llvm-svn: 325368
This commit is contained in:
Craig Topper 2018-02-16 18:34:46 +00:00
parent b7a5469c7e
commit 79bd39db80
1 changed files with 1 additions and 2 deletions
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3
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -31861,8 +31861,7 @@ static SDValue combineSelect(SDNode *N, SelectionDAG &DAG,
KnownBits Known;
TargetLowering::TargetLoweringOpt TLO(DAG, !DCI.isBeforeLegalize(),
!DCI.isBeforeLegalizeOps());
if (TLI.ShrinkDemandedConstant(Cond, DemandedMask, TLO) ||
TLI.SimplifyDemandedBits(Cond, DemandedMask, Known, TLO)) {
if (TLI.SimplifyDemandedBits(Cond, DemandedMask, Known, TLO)) {
// If we changed the computation somewhere in the DAG, this change will
// affect all users of Cond. Make sure it is fine and update all the nodes
// so that we do not use the generic VSELECT anymore. Otherwise, we may