[all-commits] [llvm/llvm-project] 0ba40d: AMDGPU/GlobalISel: Combines for V_CVT_F32_UBYTE[0-3]

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0ba40d4ccf9f0e0866c99831755f9ac89db748c4
      https://github.com/llvm/llvm-project/commit/0ba40d4ccf9f0e0866c99831755f9ac89db748c4
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-04-13 (Mon, 13 Apr 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUCombine.td
    M llvm/lib/Target/AMDGPU/AMDGPUPostLegalizerCombiner.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    A llvm/test/CodeGen/AMDGPU/GlobalISel/combine-amdgpu-cvt-f32-ubyte.mir
    A llvm/test/CodeGen/AMDGPU/GlobalISel/cvt_f32_ubyte.ll

  Log Message:
  -----------
  AMDGPU/GlobalISel: Combines for V_CVT_F32_UBYTE[0-3]

Ports the existing DAG combines, minus the simplify demanded bits
which seems to have no equivalent now. Without these, this isn't
particularly helpful in most of the IR sample cases.