[all-commits] [llvm/llvm-project] c4d892: [AMDGPU] Support preloading hidden kernel argument...

[Austin Kerbow via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c4d89203f3822b0466f5cc58654cb016aeb86648
      https://github.com/llvm/llvm-project/commit/c4d89203f3822b0466f5cc58654cb016aeb86648
  Author: Austin Kerbow <Austin.Kerbow at amd.com>
  Date:   2024-10-06 (Sun, 06 Oct 2024)

  Changed paths:
    M llvm/docs/AMDGPUUsage.rst
    M llvm/include/llvm/IR/Argument.h
    M llvm/include/llvm/IR/Function.h
    M llvm/lib/IR/Function.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUHSAMetadataStreamer.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    A llvm/test/CodeGen/AMDGPU/preload-implicit-kernargs-IR-lowering.ll
    A llvm/test/CodeGen/AMDGPU/preload-implicit-kernargs.ll

  Log Message:
  -----------
  [AMDGPU] Support preloading hidden kernel arguments (#98861)

Adds hidden kernel arguments to the function signature and marks them
inreg if they should be preloaded into user SGPRs. The normal kernarg
preloading logic then takes over with some additional checks for the
correct implicitarg_ptr alignment.

Special care is needed so that metadata for the hidden arguments is not
added twice when generating the code object.



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