[PATCH] D84159: GlobalISel: Handle llvm.roundeven

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: sepavloff, paquette, aemerson, aditya_nandakumar, craig.topper, andrew.w.kaylor.
Herald added subscribers: kerbowa, hiraditya, rovka, nhaehnle, wdng, jvesely.
Herald added a project: LLVM.

I still think it's highly questionable that we have two intrinsics
with identical behavior and only vary by the name of the libcall used
if it happens to be lowered that way, but try to reduce the feature
delta between SDAG and GlobalISel for recently added intrinsics. I'm
not sure which opcode should be considered the canonical one, but
lower roundeven back to round.


https://reviews.llvm.org/D84159

Files:
  llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
  llvm/include/llvm/CodeGen/GlobalISel/LegalizerInfo.h
  llvm/include/llvm/Support/TargetOpcodes.def
  llvm/include/llvm/Target/GenericOpcodes.td
  llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
  llvm/lib/Target/X86/X86LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/roundeven.ll
  llvm/test/CodeGen/X86/GlobalISel/roundeven.ll

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