[all-commits] [llvm/llvm-project] 25d723: [AMDGPU] Add .uniform_work_group_size metadata to v5

[vangthao95 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 25d72330ff8b4257a1c1729d5ec448f0f27dd18a
      https://github.com/llvm/llvm-project/commit/25d72330ff8b4257a1c1729d5ec448f0f27dd18a
  Author: Vang Thao <Vang.Thao at amd.com>
  Date:   2023-01-05 (Thu, 05 Jan 2023)

  Changed paths:
    M llvm/docs/AMDGPUUsage.rst
    M llvm/lib/BinaryFormat/AMDGPUMetadataVerifier.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUHSAMetadataStreamer.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUHSAMetadataStreamer.h
    A llvm/test/CodeGen/AMDGPU/hsa-metadata-uniform-workgroup-size-v5.ll

  Log Message:
  -----------
  [AMDGPU] Add .uniform_work_group_size metadata to v5

Amdgpu kernel with function attribute "uniform-work-group-size"="true" requires
uniform work group size (i.e. each dimension of global size is a multiple of
corresponding dimension of work group size). hipExtModuleLaunchKernel allows to
launch HIP kernel with non-uniform workgroup size, which makes it necessary for
runtime to check and enforce uniform workgroup size if kernel requires it. To
let runtime be able to enforce that, this metadata is needed to indicate that
the kernel requires uniform workgroup size.

Reviewed By: kzhuravl, arsenm

Differential Revision: https://reviews.llvm.org/D141012