[PATCH] D95218: [AArch64] Merge [US]MULL with half adds and subs into [US]ML[AS]L

[Andre Vieira via Phabricator via llvm-commits]

avieira created this revision.
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Hi,

  This patch adds patterns to teach the AArch64 backend to merge [US]MULL
  instructions and adds/subs of half the size into [US]ML[AS]L where we don't use
  the top half of the result.

Is this OK for main?

Kind regards,
Andre


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95218

Files:
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/mla_mls_merge.ll

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