[PATCH] D141232: [OpenMP] Modernize the kernel launching interface and APIs

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert created this revision.
jdoerfert added reviewers: ABataev, jhuber6, tianshilei1992, dreachem, RaviNarayanaswamy, ronlieb.
Herald added subscribers: kosarev, mattd, asavonic, kerbowa, guansong, bollu, hiraditya, yaxunl, jvesely.
Herald added a project: All.
jdoerfert requested review of this revision.
Herald added subscribers: llvm-commits, sstefan1.
Herald added a project: LLVM.

We already created a versioned `__tgt_kernel_arguments` struct but it
was only briefly used and its content was passed in isolation anyway.
This makes it hard to add more information in the future. With this
patch we fully embrace the struct as means to pass information from the
compiler to the plugin as part of a kernel launch.

The patch also extends and renames the struct, bumping the version
number to 2. Version 1 entries are auto-upgraded. This is in preparation
for "bare" kernel launches, per kernel dynamic shared memory, CUDA/HIP
support, etc.

The __tgt_target_kernel_nowait interface was deprecated. Once we
actually implement something like that, we can add an appropriate API.

Note: Only plugins with the `launch_kernel` interface are now supported.

  That means that an old clang won't be able to use an old runtime.
  An old clang can still use the new runtime since the libomptarget
  interface did not change.

Note: Context has been reduced to match the 8MB upload limit of phab.


https://reviews.llvm.org/D141232

Files:
  clang/lib/CodeGen/CGOpenMPRuntime.cpp
  clang/test/OpenMP/declare_mapper_codegen.cpp
  clang/test/OpenMP/distribute_codegen.cpp
  clang/test/OpenMP/distribute_firstprivate_codegen.cpp
  clang/test/OpenMP/distribute_lastprivate_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_firstprivate_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_if_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_lastprivate_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_num_threads_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_private_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_proc_bind_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_simd_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_simd_firstprivate_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_simd_if_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_simd_lastprivate_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_simd_num_threads_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_simd_private_codegen.cpp
  clang/test/OpenMP/distribute_parallel_for_simd_proc_bind_codegen.cpp
  clang/test/OpenMP/distribute_private_codegen.cpp
  clang/test/OpenMP/distribute_simd_codegen.cpp
  clang/test/OpenMP/distribute_simd_firstprivate_codegen.cpp
  clang/test/OpenMP/distribute_simd_lastprivate_codegen.cpp
  clang/test/OpenMP/distribute_simd_private_codegen.cpp
  clang/test/OpenMP/distribute_simd_reduction_codegen.cpp
  clang/test/OpenMP/interop_irbuilder.cpp
  clang/test/OpenMP/nvptx_lambda_capturing.cpp
  clang/test/OpenMP/reduction_implicit_map.cpp
  clang/test/OpenMP/target_codegen.cpp
  clang/test/OpenMP/target_codegen_global_capture.cpp
  clang/test/OpenMP/target_data_map_codegen_hold.cpp
  clang/test/OpenMP/target_depend_codegen.cpp
  clang/test/OpenMP/target_has_device_addr_codegen.cpp
  clang/test/OpenMP/target_has_device_addr_codegen_01.cpp
  clang/test/OpenMP/target_map_codegen_03.cpp
  clang/test/OpenMP/target_map_codegen_hold.cpp
  clang/test/OpenMP/target_offload_mandatory_codegen.cpp
  clang/test/OpenMP/target_parallel_codegen.cpp
  clang/test/OpenMP/target_parallel_depend_codegen.cpp
  clang/test/OpenMP/target_parallel_for_codegen.cpp
  clang/test/OpenMP/target_parallel_for_depend_codegen.cpp
  clang/test/OpenMP/target_parallel_for_simd_codegen.cpp
  clang/test/OpenMP/target_parallel_for_simd_depend_codegen.cpp
  clang/test/OpenMP/target_parallel_if_codegen.cpp
  clang/test/OpenMP/target_parallel_num_threads_codegen.cpp
  clang/test/OpenMP/target_simd_codegen.cpp
  clang/test/OpenMP/target_simd_depend_codegen.cpp
  clang/test/OpenMP/target_teams_codegen.cpp
  clang/test/OpenMP/target_teams_depend_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_collapse_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_depend_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_dist_schedule_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_firstprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_lastprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_collapse_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_depend_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_dist_schedule_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_firstprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_if_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_lastprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_order_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_private_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_proc_bind_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_reduction_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_schedule_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_collapse_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_depend_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_dist_schedule_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_firstprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_lastprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_private_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_proc_bind_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_reduction_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_parallel_for_simd_schedule_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_private_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_reduction_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_collapse_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_depend_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_dist_schedule_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_firstprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_lastprivate_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_private_codegen.cpp
  clang/test/OpenMP/target_teams_distribute_simd_reduction_codegen.cpp
  clang/test/OpenMP/target_teams_map_codegen.cpp
  clang/test/OpenMP/target_teams_num_teams_codegen.cpp
  clang/test/OpenMP/target_teams_thread_limit_codegen.cpp
  clang/test/OpenMP/teams_codegen.cpp
  clang/test/OpenMP/teams_distribute_codegen.cpp
  clang/test/OpenMP/teams_distribute_collapse_codegen.cpp
  clang/test/OpenMP/teams_distribute_dist_schedule_codegen.cpp
  clang/test/OpenMP/teams_distribute_firstprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_lastprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_collapse_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_copyin_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_dist_schedule_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_firstprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_if_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_lastprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_num_threads_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_private_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_proc_bind_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_reduction_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_schedule_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_collapse_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_dist_schedule_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_firstprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_if_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_lastprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_num_threads_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_private_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_proc_bind_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_reduction_codegen.cpp
  clang/test/OpenMP/teams_distribute_parallel_for_simd_schedule_codegen.cpp
  clang/test/OpenMP/teams_distribute_private_codegen.cpp
  clang/test/OpenMP/teams_distribute_reduction_codegen.cpp
  clang/test/OpenMP/teams_distribute_simd_codegen.cpp
  clang/test/OpenMP/teams_distribute_simd_collapse_codegen.cpp
  clang/test/OpenMP/teams_distribute_simd_dist_schedule_codegen.cpp
  clang/test/OpenMP/teams_distribute_simd_firstprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_simd_lastprivate_codegen.cpp
  clang/test/OpenMP/teams_distribute_simd_private_codegen.cpp
  clang/test/OpenMP/teams_distribute_simd_reduction_codegen.cpp
  clang/test/OpenMP/teams_firstprivate_codegen.cpp
  clang/test/OpenMP/teams_private_codegen.cpp
  llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
  llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
  llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
  openmp/libomptarget/include/device.h
  openmp/libomptarget/include/omptarget.h
  openmp/libomptarget/include/rtl.h
  openmp/libomptarget/plugins-nextgen/amdgpu/src/rtl.cpp
  openmp/libomptarget/plugins-nextgen/common/PluginInterface/PluginInterface.cpp
  openmp/libomptarget/plugins-nextgen/common/PluginInterface/PluginInterface.h
  openmp/libomptarget/plugins-nextgen/cuda/src/rtl.cpp
  openmp/libomptarget/plugins-nextgen/generic-elf-64bit/src/rtl.cpp
  openmp/libomptarget/plugins/amdgpu/src/rtl.cpp
  openmp/libomptarget/plugins/generic-elf-64bit/src/rtl.cpp
  openmp/libomptarget/plugins/remote/src/Client.h
  openmp/libomptarget/plugins/remote/src/rtl.cpp
  openmp/libomptarget/plugins/ve/src/rtl.cpp
  openmp/libomptarget/src/LegacyAPI.cpp
  openmp/libomptarget/src/device.cpp
  openmp/libomptarget/src/interface.cpp
  openmp/libomptarget/src/omptarget.cpp
  openmp/libomptarget/src/private.h
  openmp/libomptarget/src/rtl.cpp