[all-commits] [llvm/llvm-project] 6e3c39: [Flang][OpenMP] Support 'nowait' clause on taskwai...

[Phoebe Linck via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6e3c393f4a4dcf07b16df1f442883dcecf8bd011
      https://github.com/llvm/llvm-project/commit/6e3c393f4a4dcf07b16df1f442883dcecf8bd011
  Author: Phoebe Linck <phoebe.linck at hpe.com>
  Date:   2026-09-28 (Mon, 28 Sep 2026)

  Changed paths:
    M flang/lib/Lower/OpenMP/OpenMP.cpp
    M flang/lib/Semantics/check-omp-structure.cpp
    R flang/test/Lower/OpenMP/Todo/taskwait-nowait.f90
    A flang/test/Semantics/OpenMP/taskwait-nowait.f90
    M llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
    M llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
    M mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
    M mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
    M mlir/test/Target/LLVMIR/openmp-taskwait-depend.mlir
    M mlir/test/Target/LLVMIR/openmp-todo.mlir

  Log Message:
  -----------
  [Flang][OpenMP] Support 'nowait' clause on taskwait (#219247)

No longer errors when a `nowait` clause is present on a `taskwait`, and
passes the info along to the runtime call `__kmpc_omp_taskwait_deps_51`.
Note that the runtime doesn't appear to use the `has_no_wait` parameter
at the moment, so `taskwait depend(...) nowait` will still block on
tasks it is dependent on. This should match the current Clang behavior.



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