[all-commits] [llvm/llvm-project] c0b468: [ARM] Add NEON support for ISD::ABDS/ABDU nodes. (...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c0b468523c9c5517e61a197e7c1fe6cb52f8999c
      https://github.com/llvm/llvm-project/commit/c0b468523c9c5517e61a197e7c1fe6cb52f8999c
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-06-07 (Fri, 07 Jun 2024)

  Changed paths:
    M llvm/lib/Target/ARM/ARMISelLowering.cpp
    M llvm/lib/Target/ARM/ARMInstrNEON.td
    M llvm/test/CodeGen/ARM/neon_vabd.ll

  Log Message:
  -----------
  [ARM] Add NEON support for ISD::ABDS/ABDU nodes. (#94504)

As noted on #94466, NEON has ABDS/ABDU instructions but only handles them via intrinsics, plus some VABDL custom patterns.

This patch flags basic ABDS/ABDU for neon types as legal and updates all tablegen patterns to use abds/abdu instead.

Fixes #94466



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