[all-commits] [llvm/llvm-project] bf2447: [OpenMPOpt] Null generic-mode wrappers for SPMDize...

[Robert Imschweiler via All-commits]

  Branch: refs/heads/users/ro-i/rm-parallel-wrapper
  Home:   https://github.com/llvm/llvm-project
  Commit: bf2447b257648635bcc0c33cccbbfb2269c8872a
      https://github.com/llvm/llvm-project/commit/bf2447b257648635bcc0c33cccbbfb2269c8872a
  Author: Robert Imschweiler <robert.imschweiler at amd.com>
  Date:   2026-07-31 (Fri, 31 Jul 2026)

  Changed paths:
    M llvm/lib/Transforms/IPO/OpenMPOpt.cpp
    M llvm/test/Transforms/OpenMP/get_hardware_num_threads_in_block_fold.ll
    M llvm/test/Transforms/OpenMP/is_spmd_exec_mode_fold.ll
    A llvm/test/Transforms/OpenMP/spmd_parallel_wrapper_removal.ll
    M llvm/test/Transforms/OpenMP/spmdization.ll
    M llvm/test/Transforms/OpenMP/spmdization_assumes.ll

  Log Message:
  -----------
  [OpenMPOpt] Null generic-mode wrappers for SPMDized kernels

If a kernel gets SPMDized, it doesn't need the wrapper function that is
passed to __kmpc_parallel_60. Keeping the dead wrapper function can lead
to lots of misleading "local memory global used by non-kernel function"
AMDGPU backend warnings.
Let OpenMPOpt null the wrapper argument such that DCE can then remove
the corresponding dead functions.

Claude assisted with this patch.


  Commit: d05d258a20e314281c9dea3f84a05a896632c4b6
      https://github.com/llvm/llvm-project/commit/d05d258a20e314281c9dea3f84a05a896632c4b6
  Author: Robert Imschweiler <robert.imschweiler at amd.com>
  Date:   2026-07-31 (Fri, 31 Jul 2026)

  Changed paths:
    M llvm/test/Transforms/OpenMP/spmdization_guarding.ll
    M llvm/test/Transforms/OpenMP/spmdization_guarding_two_reaching_kernels.ll
    M llvm/test/Transforms/OpenMP/spmdization_no_guarding_two_reaching_kernels.ll

  Log Message:
  -----------
  fix nvptx tests


  Commit: 6bc4a8caefdb0c1a35a1f9e79104c68bf5060444
      https://github.com/llvm/llvm-project/commit/6bc4a8caefdb0c1a35a1f9e79104c68bf5060444
  Author: Robert Imschweiler <robert.imschweiler at amd.com>
  Date:   2026-07-31 (Fri, 31 Jul 2026)

  Changed paths:
    M llvm/lib/Transforms/IPO/OpenMPOpt.cpp

  Log Message:
  -----------
  const -> constexpr


Compare: https://github.com/llvm/llvm-project/compare/cc4dcffef226...6bc4a8caefdb

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