[all-commits] [llvm/llvm-project] 08bbff: [OpenMP] Codegen support for thread_limit on targe...

[Sandeep Kosuri via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 08bbff4aad57c70a38d5d2680a61901977e66637
      https://github.com/llvm/llvm-project/commit/08bbff4aad57c70a38d5d2680a61901977e66637
  Author: Sandeep Kosuri <sandeepkosuri55 at gmail.com>
  Date:   2023-08-26 (Sat, 26 Aug 2023)

  Changed paths:
    M clang/include/clang/Basic/OpenMPKinds.h
    M clang/lib/Basic/OpenMPKinds.cpp
    M clang/lib/CodeGen/CGOpenMPRuntime.cpp
    M clang/lib/CodeGen/CGOpenMPRuntime.h
    M clang/lib/CodeGen/CGStmtOpenMP.cpp
    M clang/lib/Sema/SemaOpenMP.cpp
    M clang/test/OpenMP/target_codegen.cpp
    A clang/test/OpenMP/target_parallel_for_simd_tl_codegen.cpp
    A clang/test/OpenMP/target_parallel_for_tl_codegen.cpp
    A clang/test/OpenMP/target_parallel_generic_loop_tl_codegen.cpp
    A clang/test/OpenMP/target_parallel_tl_codegen.cpp
    A clang/test/OpenMP/target_simd_tl_codegen.cpp
    M llvm/include/llvm/Frontend/OpenMP/OMP.td
    M llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
    M openmp/runtime/src/kmp.h
    M openmp/runtime/src/kmp_csupport.cpp
    M openmp/runtime/src/kmp_ftn_entry.h
    M openmp/runtime/src/kmp_global.cpp
    M openmp/runtime/src/kmp_runtime.cpp
    A openmp/runtime/test/target/target_thread_limit.cpp

  Log Message:
  -----------
  [OpenMP] Codegen support for thread_limit on target directive for host
offloading

- This patch adds support for thread_limit clause on target directive according to OpenMP 51 [2.14.5]
- The idea is to create an outer task for target region, when there is a thread_limit clause, and manipulate the thread_limit of task instead. This way, thread_limit will be applied to all the relevant constructs enclosed by the target region.

Differential Revision: https://reviews.llvm.org/D152054