https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99928
--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tobias Burnus <bur...@gcc.gnu.org>: https://gcc.gnu.org/g:f6bf436d9ab907d090823895abb7a2d5ba7ff50c commit r12-1139-gf6bf436d9ab907d090823895abb7a2d5ba7ff50c Author: Tobias Burnus <tob...@codesourcery.com> Date: Tue Jun 1 12:46:37 2021 +0200 Fortran/OpenMP: Support (parallel) master taskloop (simd) [PR99928] PR middle-end/99928 gcc/fortran/ChangeLog: * dump-parse-tree.c (show_omp_node, show_code_node): Handle (parallel) master taskloop (simd). * frontend-passes.c (gfc_code_walker): Set in_omp_workshare to false for parallel master taskloop (simd). * gfortran.h (enum gfc_statement): Add ST_OMP_(END_)(PARALLEL_)MASTER_TASKLOOP(_SIMD). (enum gfc_exec_op): EXEC_OMP_(PARALLEL_)MASTER_TASKLOOP(_SIMD). * match.h (gfc_match_omp_master_taskloop, gfc_match_omp_master_taskloop_simd, gfc_match_omp_parallel_master_taskloop, gfc_match_omp_parallel_master_taskloop_simd): New prototype. * openmp.c (gfc_match_omp_parallel_master_taskloop, gfc_match_omp_parallel_master_taskloop_simd, gfc_match_omp_master_taskloop, gfc_match_omp_master_taskloop_simd): New. (gfc_match_omp_taskloop_simd): Permit 'reduction' clause. (resolve_omp_clauses): Handle new combined directives; remove inscan-reduction check to reduce multiple errors; add task-reduction error for 'taskloop simd'. (gfc_resolve_omp_parallel_blocks, resolve_omp_do, omp_code_to_statement, gfc_resolve_omp_directive): Handle new combined constructs. * parse.c (decode_omp_directive, next_statement, gfc_ascii_statement, parse_omp_do, parse_omp_structured_block, parse_executable): Likewise. * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise. * st.c (gfc_free_statement): Likewise. * trans.c (trans_code): Likewise. * trans-openmp.c (gfc_split_omp_clauses, gfc_trans_omp_directive): Likewise. (gfc_trans_omp_parallel_master): Move after gfc_trans_omp_master_taskloop; handle parallel master taskloop (simd) as well. (gfc_trans_omp_taskloop): Take gfc_exec_op as arg. (gfc_trans_omp_master_taskloop): New. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/reduction5.f90: Remove dg-error; the issue is now diagnosed with less error output. * gfortran.dg/gomp/scan-1.f90: Likewise. * gfortran.dg/gomp/pr99928-3.f90: New test. * gfortran.dg/gomp/taskloop-1.f90: New test.