[PATCH] D55863: [GlobalISel][AArch64] Add support for @llvm.ceil

[Jessica Paquette via Phabricator via llvm-commits]

paquette created this revision.
paquette added reviewers: aemerson, aditya_nandakumar.
Herald added subscribers: kristof.beyls, javed.absar, rovka.

This adds a G_FCEIL generic instruction and uses it in AArch64. This adds selection for floating point ceil where it has a dedicated instruction. Other cases aren't handled yet for the sake of simplicity.

It updates the relevant gisel tests and adds a select-ceil test. It also adds a check to arm64-vcvt.ll which ensures that we don't fall back when we run into one of the relevant cases.


https://reviews.llvm.org/D55863

Files:
  include/llvm/Support/TargetOpcodes.def
  include/llvm/Target/GenericOpcodes.td
  include/llvm/Target/GlobalISel/SelectionDAGCompat.td
  lib/CodeGen/GlobalISel/IRTranslator.cpp
  lib/Target/AArch64/AArch64LegalizerInfo.cpp
  test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
  test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
  test/CodeGen/AArch64/GlobalISel/select-ceil.mir
  test/CodeGen/AArch64/arm64-vcvt.ll

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