[all-commits] [llvm/llvm-project] 7b70af: [AMDGPU] Add IR lowering changes for preloaded ker...

[Austin Kerbow via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7b70af297a255167b6d4e03a80626965d4739011
      https://github.com/llvm/llvm-project/commit/7b70af297a255167b6d4e03a80626965d4739011
  Author: Austin Kerbow <Austin.Kerbow at amd.com>
  Date:   2023-09-25 (Mon, 25 Sep 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp
    A llvm/test/CodeGen/AMDGPU/preload-kernargs-IR-lowering.ll

  Log Message:
  -----------
  [AMDGPU] Add IR lowering changes for preloaded kernargs

Preloaded kernel arguments should not be lowered in the IR pass
AMDGPULowerKernelArguments. Therefore it's necessary to calculate the
total number of user SGPRs that are available for preloading and how
many SGPRs would be required to preload each argument to determine
whether we should skip lowering i.e. the argument will be preloaded
instead.

Reviewed By: bcahoon

Differential Revision: https://reviews.llvm.org/D156853