[WIP][DAG] combineVSelectWithAllOnesOrZeros - fold "select Cond, 0, x -> and not(Cond), x" #146831
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… -> and not(Cond), x" Extend llvm#145298 to remove the x86 combineVSelectWithLastZeros special case WIP - still a couple of x86 regressions to address wrt unnecessary duplicated comparisons Fixes llvm#144513
RKSimon
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Extend #145298 to remove the x86 combineVSelectWithLastZeros special case
WIP - still a couple of x86 regressions to address wrt unnecessary duplicated comparisons
Fixes #144513