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author	Giorgis Georgakoudis <georgakoudis1@llnl.gov>
	Wed, 21 Apr 2021 18:41:31 +0000 (11:41 -0700)
committer	Giorgis Georgakoudis <georgakoudis1@llnl.gov>
	Thu, 22 Apr 2021 01:46:07 +0000 (18:46 -0700)
commit	a2dbfb6b72db19ed851464160ef7539b50d43894
tree	ecd8130dfac43a6fc914ddba5f74749b300b54b1	tree \| snapshot
parent	77ac823fd285973cfb3517932c09d82e6a32f46d	commit \| diff

[OpenMP] Simplify offloading parallel call codegen

This revision simplifies Clang codegen for parallel regions in OpenMP GPU target offloading and corresponding changes in libomptarget: SPMD/non-SPMD parallel calls are unified under a single `kmpc_parallel_51` runtime entry point for parallel regions (which will be commonized between target, host-side parallel regions), data sharing is internalized to the runtime. Tests have been auto-generated using `update_cc_test_checks.py`. Also, the revision contains changes to OpenMPOpt for remark creation on target offloading regions.

Reviewed By: jdoerfert, Meinersbur

Differential Revision: https://reviews.llvm.org/D95976

33 files changed:

clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_allocate_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_data_sharing.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_distribute_parallel_generic_mode_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_lambda_capturing.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_multi_target_parallel_codegen.cpp	[new file with mode: 0644]	blob
clang/test/OpenMP/nvptx_nested_parallel_codegen.cpp	[new file with mode: 0644]	blob
clang/test/OpenMP/nvptx_parallel_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_parallel_for_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_parallel_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_parallel_num_threads_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_teams_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_teams_distribute_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_teams_distribute_parallel_for_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_teams_distribute_parallel_for_generic_mode_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_target_teams_distribute_parallel_for_simd_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/nvptx_teams_reduction_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/remarks_parallel_in_multiple_target_state_machines.c		diff \| blob \| history
clang/test/OpenMP/remarks_parallel_in_target_state_machine.c		diff \| blob \| history
clang/test/OpenMP/target_parallel_debug_codegen.cpp		diff \| blob \| history
clang/test/OpenMP/target_parallel_for_debug_codegen.cpp		diff \| blob \| history
llvm/include/llvm/Frontend/OpenMP/OMPKinds.def		diff \| blob \| history
llvm/lib/Transforms/IPO/OpenMPOpt.cpp		diff \| blob \| history
llvm/test/Transforms/OpenMP/gpu_state_machine_function_ptr_replacement.ll		diff \| blob \| history
openmp/libomptarget/deviceRTLs/common/generated_microtask_cases.gen	[new file with mode: 0644]	blob
openmp/libomptarget/deviceRTLs/common/src/omptarget.cu		diff \| blob \| history
openmp/libomptarget/deviceRTLs/common/src/parallel.cu		diff \| blob \| history
openmp/libomptarget/deviceRTLs/common/src/support.cu		diff \| blob \| history
openmp/libomptarget/deviceRTLs/common/support.h		diff \| blob \| history
openmp/libomptarget/deviceRTLs/interface.h		diff \| blob \| history
openmp/libomptarget/test/offloading/bug49779.cpp	[new file with mode: 0644]	blob
openmp/libomptarget/utils/generate_microtask_cases.py	[new file with mode: 0755]	blob

Domain: System / Toolchain;

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