[llvm-bugs] [Bug 46573] New: GOMP interface: handling of if0 tasks with dependency

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Jul 3 00:55:12 PDT 2020


            Bug ID: 46573
           Summary: GOMP interface: handling of if0 tasks with dependency
           Product: OpenMP
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Runtime Library
          Assignee: unassignedbugs at nondot.org
          Reporter: protze at itc.rwth-aachen.de
                CC: llvm-bugs at lists.llvm.org

As I understand the implementation, KMP_API_NAME_GOMP_TASK ignores dependencies
for if0 tasks. (see runtime/test/ompt/tasks/taskwait-depend.c) 

Clang generates a __kmpc_omp_wait_deps call before the
__kmpc_omp_task_begin_if0, so I think the GOMP wrapper should do the same or
just create the explicit task. The latter will make it easier to support

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