[PATCH] D88742: [AArch64] Identify SAD pattern for v16i8 type

[Vinay Madhusudan via Phabricator via llvm-commits]

mivnay created this revision.
Herald added subscribers: llvm-commits, danielkiss, hiraditya, kristof.beyls.
Herald added a project: LLVM.
mivnay requested review of this revision.

(ABS (SUB (ZERO_EXTEND a), (ZERO_EXTEND b))) to ZERO_EXTEND((UABD a, b))

This partially solves the bug: https://bugs.llvm.org/show_bug.cgi?id=46888
Meta ticket: https://bugs.llvm.org/show_bug.cgi?id=46929


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D88742

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/test/CodeGen/AArch64/arm64-vabs.ll

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