[PATCH] D108227: [GlobalISel] Implement lowering for G_ISNAN + use it in AArch64

[Jessica Paquette via Phabricator via llvm-commits]

paquette created this revision.
paquette added reviewers: sepavloff, aemerson, arsenm, jroelofs.
Herald added subscribers: hiraditya, kristof.beyls, rovka.
paquette requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

GlobalISel equivalent to `TargetLowering::expandISNAN`.

Use it in AArch64 and add a testcase.


https://reviews.llvm.org/D108227

Files:
  llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-isnan.mir

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