[all-commits] [llvm/llvm-project] e55d6f: [AMDGPU] Simplify and improve codegen for llvm.amd...

[Jay Foad via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e55d6f5ea2656bf842973d8bee86c3ace31bc865
      https://github.com/llvm/llvm-project/commit/e55d6f5ea2656bf842973d8bee86c3ace31bc865
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2024-09-11 (Wed, 11 Sep 2024)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.h
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    M llvm/lib/Target/AMDGPU/SIPreAllocateWWMRegs.cpp
    M llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/global-atomic-fadd.f32-no-rtn.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/global-atomic-fadd.f32-rtn.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.set.inactive.ll
    M llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll
    M llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll
    M llvm/test/CodeGen/AMDGPU/global-atomic-fadd.f32-no-rtn.ll
    M llvm/test/CodeGen/AMDGPU/global-atomic-fadd.f32-rtn.ll
    M llvm/test/CodeGen/AMDGPU/global_atomics_scan_fadd.ll
    M llvm/test/CodeGen/AMDGPU/global_atomics_scan_fmax.ll
    M llvm/test/CodeGen/AMDGPU/global_atomics_scan_fmin.ll
    M llvm/test/CodeGen/AMDGPU/global_atomics_scan_fsub.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.set.inactive.chain.arg.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.set.inactive.ll
    M llvm/test/CodeGen/AMDGPU/sgpr-spill-overlap-wwm-reserve.mir
    M llvm/test/CodeGen/AMDGPU/wave32.ll
    M llvm/test/CodeGen/AMDGPU/wqm.mir
    M llvm/test/CodeGen/AMDGPU/wwm-reserved-spill.ll
    M llvm/test/CodeGen/AMDGPU/wwm-reserved.ll

  Log Message:
  -----------
  [AMDGPU] Simplify and improve codegen for llvm.amdgcn.set.inactive (#107889)

Always generate v_cndmask_b32 instead of modifying exec around
v_mov_b32. This is expected to be faster because
modifying exec generally causes pipeline stalls.



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