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
82 lines
3.0 KiB
Fortran
82 lines
3.0 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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! Valid and invalid testcases for copyprivate and nowait clause on the single directive
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program single
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! Valid testcases
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!$omp single
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print *, x
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!$omp end single
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!$omp single nowait
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print *, x
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!$omp end single
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!$omp single copyprivate(x, y, z)
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print *, x
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!$omp end single
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!$omp single
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print *, x
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!$omp end single copyprivate(x)
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! Invalid testcases
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!$omp single
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print *, x
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp end single copyprivate(x) nowait
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!ERROR: 'x' appears in more than one COPYPRIVATE clause on the SINGLE directive
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!$omp single copyprivate(x) copyprivate(x)
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print *, x
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!$omp end single
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!$omp single
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print *, x
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!ERROR: 'x' appears in more than one COPYPRIVATE clause on the END SINGLE directive
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!$omp end single copyprivate(x) copyprivate(x)
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!ERROR: At most one NOWAIT clause can appear on the SINGLE directive
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!$omp single nowait nowait
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print *, x
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!$omp end single
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!$omp single
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print *, x
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!ERROR: At most one NOWAIT clause can appear on the END SINGLE directive
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!$omp end single nowait nowait
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp single copyprivate(x) nowait
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print *, x
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!WARNING: The COPYPRIVATE clause with 'x' is already used on the SINGLE directive
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!ERROR: At most one NOWAIT clause can appear on the SINGLE directive
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!$omp end single copyprivate(x) nowait
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!$omp single copyprivate(x)
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print *, x
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!WARNING: The COPYPRIVATE clause with 'x' is already used on the SINGLE directive
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp end single copyprivate(x) nowait
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp single copyprivate(x, y) nowait
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print *, x
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!WARNING: The COPYPRIVATE clause with 'x' is already used on the SINGLE directive
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!ERROR: 'z' appears in more than one COPYPRIVATE clause on the END SINGLE directive
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!ERROR: At most one NOWAIT clause can appear on the SINGLE directive
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!$omp end single copyprivate(x, z) copyprivate(z) nowait
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!ERROR: NOWAIT clause must not be used with COPYPRIVATE clause on the SINGLE directive
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!$omp single copyprivate(x) nowait copyprivate(y) copyprivate(z)
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print *, x
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!WARNING: The COPYPRIVATE clause with 'x' is already used on the SINGLE directive
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!WARNING: The COPYPRIVATE clause with 'y' is already used on the SINGLE directive
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!WARNING: The COPYPRIVATE clause with 'z' is already used on the SINGLE directive
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!ERROR: At most one NOWAIT clause can appear on the SINGLE directive
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!$omp end single copyprivate(x, y, z) nowait
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end program
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