[PATCH] D95325: [AArch64][GlobalISel] Make G_SADDE and G_SSUBE legal

[Cassie Jones via Phabricator via llvm-commits]

porglezomp created this revision.
porglezomp added reviewers: paquette, aemerson.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls, rovka.
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This makes G_SADDE and G_SSUBE legal in preparation for further work
legalizing overflowing operations. It's fine that they don't have an
instruction selector implementation yet, because G_UADDE and G_USUBE are
already legal on AArch64 without an instruction selector implementation. This
completes the set of G_[SU]{ADD,SUB}[EO] operations on AArch64.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95325

Files:
  llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-sadde.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-ssube.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir

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