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Commit ed51e26a authored by Simon Pilgrim's avatar Simon Pilgrim
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[X86] combineAddOrSubToADCOrSBB - commute + neg subtraction patterns 

Handle SUB(AND(SRL(Y,Z),1),X) -> NEG(SBB(X,0,BT(Y,Z))) folds

I'll address the X86 lost folded-load regressions in a follow-up patch
parent 4a6fab79
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