[PATCH] D108382: [X86] lowerShuffleAsDecomposedShuffleMerge(): if both inputs are broadcastable/identities, canonicalize broadcasts as such

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added inline comments.


================
Comment at: llvm/test/CodeGen/X86/copy-low-subvec-elt-to-high-subvec-elt.ll:287
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    vbroadcastsd %xmm1, %ymm1
 ; CHECK-NEXT:    vunpcklpd {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[2],ymm1[2]
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This regression is being fixed by D108411.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D108382/new/

https://reviews.llvm.org/D108382