[PATCH] D137726: [AArch64] Allow sinking both extract and splat to smull

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: fhahn, SjoerdMeijer, samtebbs, labrinea.
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We currently will sink either a splat or two extracts to a smull/umull. There can be cases where we have both one operand as an extract and one as a splat. This alters the areExtractShuffleVectors method to account for that case.


https://reviews.llvm.org/D137726

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/test/CodeGen/AArch64/sinksplat.ll

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