[PATCH] D113426: [DAGCombiner] add fold for vselect based on mask of signbit, part 3
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Nov 10 11:14:26 PST 2021
RKSimon added inline comments.
================
Comment at: llvm/test/CodeGen/X86/vselect-zero.ll:977
; AVX2-NEXT: vpcmpgtd %ymm2, %ymm0, %ymm0
; AVX2-NEXT: vpand %ymm1, %ymm0, %ymm0
; AVX2-NEXT: retq
----------------
Any ideas why AVX2 fails to fold to ANDN(SRA(X,31),Y) ?
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D113426/new/
https://reviews.llvm.org/D113426
More information about the llvm-commits
mailing list