[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

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index d90b139..7fd196e 100644 (file)
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -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