[all-commits] [llvm/llvm-project] 2c9a46: [AMDGPU] Move kernarg preload logic to separate pa...

[Austin Kerbow via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2c9a46cce3ba32f36fcaa127d57006db00726a8a
      https://github.com/llvm/llvm-project/commit/2c9a46cce3ba32f36fcaa127d57006db00726a8a
  Author: Austin Kerbow <Austin.Kerbow at amd.com>
  Date:   2025-05-11 (Sun, 11 May 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPU.h
    M llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUPassRegistry.def
    A llvm/lib/Target/AMDGPU/AMDGPUPreloadKernelArguments.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/lib/Target/AMDGPU/CMakeLists.txt
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.intersect_ray.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.raw.ptr.buffer.atomic.fadd-with-ret.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointers-memcpy.ll
    M llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.intersect_ray.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.writelane.ll
    M llvm/test/CodeGen/AMDGPU/preload-implicit-kernargs-IR-lowering.ll
    M llvm/test/CodeGen/AMDGPU/preload-implicit-kernargs-debug-info.ll
    M llvm/test/CodeGen/AMDGPU/preload-implicit-kernargs.ll
    M llvm/test/CodeGen/AMDGPU/preload-kernargs-IR-lowering.ll
    R llvm/test/CodeGen/AMDGPU/preload-kernargs-inreg-hints.ll
    M llvm/test/CodeGen/AMDGPU/preload-kernargs.ll
    M llvm/test/CodeGen/AMDGPU/wwm-reserved.ll

  Log Message:
  -----------
  [AMDGPU] Move kernarg preload logic to separate pass (#130434)

Moves kernarg preload logic to its own module pass. Cloned function
declarations are removed when preloading hidden arguments. The inreg
attribute is now added in this pass instead of AMDGPUAttributor. The
rest of the logic is copied from AMDGPULowerKernelArguments which now
only check whether an arguments is marked inreg to avoid replacing
direct uses of preloaded arguments. This change requires test updates to
remove inreg from lit tests with kernels that don't actually want
preloading.



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