[all-commits] [llvm/llvm-project] 26b0be: AMDGPU: Use pattern to select instruction for intr...

[Changpeng Fang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 26b0bef192be1a3adc250af460c2e728a1ca5a64
      https://github.com/llvm/llvm-project/commit/26b0bef192be1a3adc250af460c2e728a1ca5a64
  Author: Changpeng Fang <changpeng.fang at amd.com>
  Date:   2024-08-29 (Thu, 29 Aug 2024)

  Changed paths:
    M llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
    M llvm/include/llvm/Target/TargetSelectionDAG.td
    M llvm/lib/Target/AMDGPU/AMDGPUGISel.td
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.h
    M llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.h
    M llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.h
    M llvm/lib/Target/AMDGPU/SIInstrInfo.td
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    M llvm/test/CodeGen/AMDGPU/llvm.fptrunc.round.err.ll
    M llvm/test/CodeGen/AMDGPU/llvm.fptrunc.round.ll

  Log Message:
  -----------
  AMDGPU: Use pattern to select instruction for intrinsic llvm.fptrunc.round (#105761)

Use GCNPat instead of Custom Lowering to select instructions for
intrinsic llvm.fptrunc.round. "SupportedRoundMode : TImmLeaf" is used as
a predicate to select only when the rounding mode is supported.
"as_hw_round_mode : SDNodeXForm" is developed to translate the round
modes to the corresponding ones that hardware recognizes.



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