[PATCH] D157679: [AArch64][GISel] Extend lowering for fp round intrinsics.

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: aemerson, arsenm, stuij, chuongg3.
Herald added subscribers: hiraditya, kristof.beyls.
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dmgreen requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

This extends the lowering of ceil, floor, nearbyint, rint, round, roundeven and trunc. They are all very similar, so can reuse the same legalization info. selectIntrinsicTrunc and selectIntrinsicRound can be removed as they can be selected via tablegen patterns, and G_INTRINSIC_ROUNDEVEN is marked as a gisel equivalent of froundeven. Otherwise this reuses the existing code, filling it out to handle more types.


https://reviews.llvm.org/D157679

Files:
  llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
  llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
  llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-ceil.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-frint.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-intrinsic-round.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-intrinsic-roundeven.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-intrinsic-trunc.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-nearbyint.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
  llvm/test/CodeGen/AArch64/fcvt.ll

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