[PATCH] D103703: [AArch64] Remove AArch64ISD::NEG

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: efriedma, david-arm, sdesmalen, NickGuy, t.p.northover.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
dmgreen requested review of this revision.
Herald added a project: LLVM.

This NEG node is just a vector negation, easily represented as a SUB zero. Removing it from the one place it is generated is essentially an NFC, but can allow some extra folding. The updated tests are now loading different constant literals, which have already been negated.


https://reviews.llvm.org/D103703

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/srem-seteq-vec-nonsplat.ll
  llvm/test/CodeGen/AArch64/urem-seteq-illegal-types.ll
  llvm/test/CodeGen/AArch64/urem-seteq-vec-nonsplat.ll

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