[PATCH] D123163: [TLI] `TargetLowering::SimplifyDemandedVectorElts()`: narrowing bitcast: fill known zero elts from known src bits
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Apr 6 03:29:21 PDT 2022
RKSimon added inline comments.
================
Comment at: llvm/test/CodeGen/X86/slow-pmulld.ll:264
; AVX2-SLOW-NEXT: vpmovzxbd {{.*#+}} ymm0 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero,xmm0[4],zero,zero,zero,xmm0[5],zero,zero,zero,xmm0[6],zero,zero,zero,xmm0[7],zero,zero,zero
-; AVX2-SLOW-NEXT: vpbroadcastd {{.*#+}} ymm2 = [18778,18778,18778,18778,18778,18778,18778,18778]
+; AVX2-SLOW-NEXT: vmovdqa {{.*#+}} ymm2 = <18778,u,18778,u,18778,u,18778,u,18778,u,18778,u,18778,u,18778,u>
; AVX2-SLOW-NEXT: vpmaddwd %ymm2, %ymm0, %ymm0
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regression?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D123163/new/
https://reviews.llvm.org/D123163
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