e15545cad8
Issue: - Single construct used to throw a semantic error for copyprivate and nowait clause when used in the single directive. - Also, the copyprivate with nowait restriction has been removed from OpenMP 6.0 Fix: - Allow copyprivate and nowait on both single and end single directive - Allow at most one nowait clause - Throw a warning when the same list item is used in the copyprivate clause on the end single directive From Reference guide (OpenMP 5.2, 2.10.2): ``` !$omp single [clause[ [,]clause] ... ] loosely-structured-block !$omp end single [end-clause[ [,]end-clause] ...] clause: copyprivate (list) nowait [...] end-clause: copyprivate (list) nowait ``` Towards: https://github.com/llvm/llvm-project/issues/110008
55 lines
2.0 KiB
Fortran
55 lines
2.0 KiB
Fortran
! RUN: %python %S/../test_errors.py %s %flang_fc1 -fopenmp -fopenmp-version=52
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!
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! OpenMP Version 5.2
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!
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! 2.10.2 single Construct
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! Copyprivate and Nowait clauses are allowed in both clause and end clause
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subroutine omp_single
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integer, save :: i
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integer :: j
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i = 10; j = 11
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!ERROR: COPYPRIVATE variable 'i' is not PRIVATE or THREADPRIVATE in outer context
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp single copyprivate(i) nowait
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print *, "omp single", i
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!$omp end single
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!$omp parallel private(i)
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!$omp single copyprivate(i)
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print *, "omp single", i
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!$omp end single
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!$omp end parallel
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!$omp parallel
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp single nowait
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print *, "omp single", i
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!ERROR: COPYPRIVATE variable 'i' is not PRIVATE or THREADPRIVATE in outer context
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!$omp end single copyprivate(i)
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!ERROR: COPYPRIVATE variable 'i' is not PRIVATE or THREADPRIVATE in outer context
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!$omp single copyprivate(i)
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print *, "omp single", i
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp end single nowait
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!ERROR: COPYPRIVATE variable 'j' may not appear on a PRIVATE or FIRSTPRIVATE clause on a SINGLE construct
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!$omp single private(j) copyprivate(j)
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print *, "omp single", j
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!ERROR: COPYPRIVATE variable 'j' may not appear on a PRIVATE or FIRSTPRIVATE clause on a SINGLE construct
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!WARNING: The COPYPRIVATE clause with 'j' is already used on the SINGLE directive
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!$omp end single copyprivate(j)
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!$omp single nowait
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print *, "omp single", j
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!ERROR: At most one NOWAIT clause can appear on the SINGLE directive
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!$omp end single nowait
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!$omp end parallel
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!$omp single nowait
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print *, "omp single", i
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!$omp end single
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end subroutine omp_single
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