[PATCH] D56387: [DAGCombiner] Enable SimplifyDemandedBits vector support for TRUNCATE

Dávid Bolvanský via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Jan 19 03:54:55 PST 2021


xbolva00 added inline comments.


================
Comment at: llvm/test/CodeGen/X86/combine-sra.ll:248-250
+; AVX2-SLOW-NEXT:    vpsrlq $32, %ymm0, %ymm0
+; AVX2-SLOW-NEXT:    vextracti128 $1, %ymm0, %xmm1
+; AVX2-SLOW-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[0,2]
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lebedev.ri wrote:
> Appears to be a regression
@RKSimon


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56387/new/

https://reviews.llvm.org/D56387



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