[PATCH] D93599: [DAG] Simplify OR(X,SHL(Y,BW/2)) eq/ne 0/-1 'all/any-of' style patterns
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 30 02:50:02 PST 2020
RKSimon added a comment.
any more comments?
================
Comment at: llvm/test/CodeGen/X86/movmsk-cmp.ll:2711
; SSE-NEXT: shll $16, %edx
; SSE-NEXT: orl %eax, %edx
+; SSE-NEXT: andl %ecx, %edx
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BTW - we should be able to catch these concats as well by extending this patch's approach in a future commit
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https://reviews.llvm.org/D93599/new/
https://reviews.llvm.org/D93599
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