[all-commits] [llvm/llvm-project] 07ed81: [OpenMP] Replace nvvm.annotation usage with kernel...

[Alex MacLean via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 07ed8187acc31ac3f4779da452864a29d48799ac
      https://github.com/llvm/llvm-project/commit/07ed8187acc31ac3f4779da452864a29d48799ac
  Author: Alex MacLean <amaclean at nvidia.com>
  Date:   2025-01-24 (Fri, 24 Jan 2025)

  Changed paths:
    M clang/test/OpenMP/assumes_include_nvptx.cpp
    M clang/test/OpenMP/nvptx_target_firstprivate_codegen.cpp
    M llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
    M llvm/lib/Transforms/IPO/OpenMPOpt.cpp
    M llvm/test/Transforms/OpenMP/always_inline_device.ll
    M llvm/test/Transforms/OpenMP/attributor_module_slice_reproducer.ll
    M llvm/test/Transforms/OpenMP/barrier_removal.ll
    M llvm/test/Transforms/OpenMP/bug66687.ll
    M llvm/test/Transforms/OpenMP/custom_state_machines.ll
    M llvm/test/Transforms/OpenMP/custom_state_machines_pre_lto.ll
    M llvm/test/Transforms/OpenMP/custom_state_machines_remarks.ll
    M llvm/test/Transforms/OpenMP/deduplication_target.ll
    M llvm/test/Transforms/OpenMP/get_hardware_num_threads_in_block_fold.ll
    M llvm/test/Transforms/OpenMP/get_hardware_num_threads_in_block_fold_optnone.ll
    M llvm/test/Transforms/OpenMP/global_constructor.ll
    M llvm/test/Transforms/OpenMP/globalization_remarks.ll
    M llvm/test/Transforms/OpenMP/gpu_kernel_detection_remarks.ll
    M llvm/test/Transforms/OpenMP/gpu_state_machine_function_ptr_replacement.ll
    M llvm/test/Transforms/OpenMP/is_spmd_exec_mode_fold.ll
    M llvm/test/Transforms/OpenMP/nested_parallelism.ll
    M llvm/test/Transforms/OpenMP/parallel_level_fold.ll
    M llvm/test/Transforms/OpenMP/remove_globalization.ll
    M llvm/test/Transforms/OpenMP/replace_globalization.ll
    M llvm/test/Transforms/OpenMP/single_threaded_execution.ll
    M llvm/test/Transforms/OpenMP/spmdization.ll
    M llvm/test/Transforms/OpenMP/spmdization_assumes.ll
    M llvm/test/Transforms/OpenMP/spmdization_constant_prop.ll
    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_indirect.ll
    M llvm/test/Transforms/OpenMP/spmdization_no_guarding_two_reaching_kernels.ll
    M llvm/test/Transforms/OpenMP/spmdization_remarks.ll
    M llvm/test/Transforms/OpenMP/value-simplify-openmp-opt.ll
    M llvm/unittests/Frontend/OpenMPIRBuilderTest.cpp

  Log Message:
  -----------
  [OpenMP] Replace nvvm.annotation usage with kernel calling conventions (#122320)

Specifying a kernel with the `ptx_kernel` or `amdgpu_kernel` calling
convention is a more idiomatic and compile-time performant than using
the `nvvm.annoation !"kernel"` metadata.

Transition OMPIRBuilder to use calling conventions for PTX kernels and
no longer emit `nvvm.annoation`. Update OpenMPOpt to work with kernels
specified via calling convention as well as metadata. Update OpenMP
tests to use the calling conventions.



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