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2023-10-25Disentangle handling of OpenACC 'host', 'self' pragma tokensThomas Schwinge1-13/+14
'gcc/c-family/c-pragma.h:pragma_omp_clause' already defines 'PRAGMA_OACC_CLAUSE_SELF', but it has no longer been used for the 'update' directive's 'self' clause as of 2018 commit 829c6349e96c5bfa8603aaef8858b38e237a2f33 (Subversion r261813) "Update OpenACC data clause semantics to the 2.5 behavior". That one instead mapped the 'self' pragma token to the 'host' one (same semantics). That means that we're later not able to tell whether originally we had seen 'self' or 'host', which was OK as long as only the 'update' directive had a 'self' clause. However, as of recent commit 3a3596389c2e539cb8fd5dc5784a4e2afe193a2a "OpenACC 2.7: Implement self clause for compute constructs", also OpenACC compute constructs may have a 'self' clause -- with different semantics. That means, we need to know which OpenACC directive we're parsing clauses for, which can be done in a simpler way than in that commit, similar to how the OpenMP 'to' clause is handled. While at that, clarify that (already in OpenACC 2.0a) "The 'host' clause is a synonym for the 'self' clause." -- not the other way round. gcc/c/ * c-parser.cc (c_parser_omp_clause_name): Return 'PRAGMA_OACC_CLAUSE_SELF' for "self". (c_parser_oacc_data_clause, OACC_UPDATE_CLAUSE_MASK): Adjust. (c_parser_oacc_all_clauses): Remove 'bool compute_p' formal parameter, and instead locally determine whether we're called for an OpenACC compute construct or OpenACC 'update' directive. (c_parser_oacc_compute): Adjust. gcc/cp/ * parser.cc (cp_parser_omp_clause_name): Return 'PRAGMA_OACC_CLAUSE_SELF' for "self". (cp_parser_oacc_data_clause, OACC_UPDATE_CLAUSE_MASK): Adjust. (cp_parser_oacc_all_clauses): Remove 'bool compute_p' formal parameter, and instead locally determine whether we're called for an OpenACC compute construct or OpenACC 'update' directive. (cp_parser_oacc_compute): Adjust. gcc/fortran/ * openmp.cc (omp_mask2): Split 'OMP_CLAUSE_HOST_SELF' into 'OMP_CLAUSE_SELF', 'OMP_CLAUSE_HOST'. (gfc_match_omp_clauses, OACC_UPDATE_CLAUSES): Adjust.
2023-10-25OpenACC 2.7: Implement self clause for compute constructsChung-Lin Tang1-3/+37
This patch implements the 'self' clause for compute constructs: parallel, kernels, and serial. This clause conditionally uses the local device (the host mult-core CPU) as the executing device of the compute region. The actual implementation of the "local device" device type inside libgomp (presumably using pthreads) is still not yet completed, so the libgomp side is still implemented the exact same as host-fallback mode. (so as of now, it essentially behaves like the 'if' clause with the condition inverted) gcc/c/ChangeLog: * c-parser.cc (c_parser_oacc_compute_clause_self): New function. (c_parser_oacc_all_clauses): Add new 'bool compute_p = false' parameter, add parsing of self clause when compute_p is true. (OACC_KERNELS_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_SELF. (OACC_PARALLEL_CLAUSE_MASK): Likewise, (OACC_SERIAL_CLAUSE_MASK): Likewise. (c_parser_oacc_compute): Adjust call to c_parser_oacc_all_clauses to set compute_p argument to true. * c-typeck.cc (c_finish_omp_clauses): Add OMP_CLAUSE_SELF case. gcc/cp/ChangeLog: * parser.cc (cp_parser_oacc_compute_clause_self): New function. (cp_parser_oacc_all_clauses): Add new 'bool compute_p = false' parameter, add parsing of self clause when compute_p is true. (OACC_KERNELS_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_SELF. (OACC_PARALLEL_CLAUSE_MASK): Likewise, (OACC_SERIAL_CLAUSE_MASK): Likewise. (cp_parser_oacc_compute): Adjust call to c_parser_oacc_all_clauses to set compute_p argument to true. * pt.cc (tsubst_omp_clauses): Add OMP_CLAUSE_SELF case. * semantics.cc (c_finish_omp_clauses): Add OMP_CLAUSE_SELF case, merged with OMP_CLAUSE_IF case. gcc/fortran/ChangeLog: * gfortran.h (typedef struct gfc_omp_clauses): Add self_expr field. * openmp.cc (enum omp_mask2): Add OMP_CLAUSE_SELF. (gfc_match_omp_clauses): Add handling for OMP_CLAUSE_SELF. (OACC_PARALLEL_CLAUSES): Add OMP_CLAUSE_SELF. (OACC_KERNELS_CLAUSES): Likewise. (OACC_SERIAL_CLAUSES): Likewise. (resolve_omp_clauses): Add handling for omp_clauses->self_expr. * trans-openmp.cc (gfc_trans_omp_clauses): Add handling of clauses->self_expr and building of OMP_CLAUSE_SELF tree clause. (gfc_split_omp_clauses): Add handling of self_expr field copy. gcc/ChangeLog: * gimplify.cc (gimplify_scan_omp_clauses): Add OMP_CLAUSE_SELF case. (gimplify_adjust_omp_clauses): Likewise. * omp-expand.cc (expand_omp_target): Add OMP_CLAUSE_SELF expansion code, * omp-low.cc (scan_sharing_clauses): Add OMP_CLAUSE_SELF case. * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_SELF enum. * tree-nested.cc (convert_nonlocal_omp_clauses): Add OMP_CLAUSE_SELF case. (convert_local_omp_clauses): Likewise. * tree-pretty-print.cc (dump_omp_clause): Add OMP_CLAUSE_SELF case. * tree.cc (omp_clause_num_ops): Add OMP_CLAUSE_SELF entry. (omp_clause_code_name): Likewise. * tree.h (OMP_CLAUSE_SELF_EXPR): New macro. gcc/testsuite/ChangeLog: * c-c++-common/goacc/self-clause-1.c: New test. * c-c++-common/goacc/self-clause-2.c: New test. * gfortran.dg/goacc/self.f95: New test. include/ChangeLog: * gomp-constants.h (GOACC_FLAG_LOCAL_DEVICE): New flag bit value. libgomp/ChangeLog: * oacc-parallel.c (GOACC_parallel_keyed): Add code to handle GOACC_FLAG_LOCAL_DEVICE case. * testsuite/libgomp.oacc-c-c++-common/self-1.c: New test.
2023-10-25OpenMP/Fortran: Group handling of 'if' clause without and with modifierThomas Schwinge1-2/+2
The 'if' clause with modifier was introduced in commit b4c3a85be96585374bf95c981ba2f602667cf5b7 (Subversion r242037) "Partial OpenMP 4.5 fortran support", but -- in some instances -- didn't place it next to the existing handling of 'if' clause without modifier. Unify that; no change in behavior. gcc/fortran/ * dump-parse-tree.cc (show_omp_clauses): Group handling of 'if' clause without and with modifier. * frontend-passes.cc (gfc_code_walker): Likewise. * gfortran.h (gfc_omp_clauses): Likewise. * openmp.cc (gfc_free_omp_clauses): Likewise.
2023-10-14Fortran: Support OpenMP's 'allocate' directive for stack varsTobias Burnus1-14/+48
gcc/fortran/ChangeLog: * gfortran.h (ext_attr_t): Add omp_allocate flag. * match.cc (gfc_free_omp_namelist): Void deleting same u2.allocator multiple times now that a sequence can use the same one. * openmp.cc (gfc_match_omp_clauses, gfc_match_omp_allocate): Use same allocator expr multiple times. (is_predefined_allocator): Make static. (gfc_resolve_omp_allocate): Update/extend restriction checks; remove sorry message. (resolve_omp_clauses): Reject corarrays in allocate/allocators directive. * parse.cc (check_omp_allocate_stmt): Permit procedure pointers here (rejected later) for less misleading diagnostic. * trans-array.cc (gfc_trans_auto_array_allocation): Propagate size for GOMP_alloc and location to which it should be added to. * trans-decl.cc (gfc_trans_deferred_vars): Handle 'omp allocate' for stack variables; sorry for static variables/common blocks. * trans-openmp.cc (gfc_trans_omp_clauses): Evaluate 'allocate' clause's allocator only once; fix adding expressions to the block. (gfc_trans_omp_single): Pass a block to gfc_trans_omp_clauses. gcc/ChangeLog: * gimplify.cc (gimplify_bind_expr): Handle Fortran's 'omp allocate' for stack variables. libgomp/ChangeLog: * libgomp.texi (OpenMP Impl. Status): Mention that Fortran now supports the allocate directive for stack variables. * testsuite/libgomp.fortran/allocate-5.f90: New test. * testsuite/libgomp.fortran/allocate-6.f90: New test. * testsuite/libgomp.fortran/allocate-7.f90: New test. * testsuite/libgomp.fortran/allocate-8.f90: New test. gcc/testsuite/ChangeLog: * c-c++-common/gomp/allocate-14.c: Fix directive name. * c-c++-common/gomp/allocate-15.c: Likewise. * c-c++-common/gomp/allocate-9.c: Fix comment typo. * gfortran.dg/gomp/allocate-4.f90: Remove sorry dg-error. * gfortran.dg/gomp/allocate-7.f90: Likewise. * gfortran.dg/gomp/allocate-10.f90: New test. * gfortran.dg/gomp/allocate-11.f90: New test. * gfortran.dg/gomp/allocate-12.f90: New test. * gfortran.dg/gomp/allocate-13.f90: New test. * gfortran.dg/gomp/allocate-14.f90: New test. * gfortran.dg/gomp/allocate-15.f90: New test. * gfortran.dg/gomp/allocate-8.f90: New test. * gfortran.dg/gomp/allocate-9.f90: New test.
2023-10-08Fortran/OpenMP: Fix handling of strictly structured blocksTobias Burnus1-0/+2
For strictly structured blocks, a BLOCK was created but the code was placed after the block the outer structured block. Additionally, labelled blocks were mishandled. As the code is now properly in a BLOCK, it solves additional issues. gcc/fortran/ChangeLog: * parse.cc (parse_omp_structured_block): Make the user code end up inside of BLOCK construct for strictly structured blocks; fix fallout for 'section' and 'teams'. * openmp.cc (resolve_omp_target): Fix changed BLOCK handling for teams in target checking. libgomp/ChangeLog: * testsuite/libgomp.fortran/strictly-structured-block-1.f90: New test. gcc/testsuite/ChangeLog: * gfortran.dg/block_17.f90: New test. * gfortran.dg/gomp/strictly-structured-block-5.f90: New test.
2023-08-25OpenMP: Fortran support for imperfectly-nested loopsSandra Loosemore1-99/+664
OpenMP 5.0 removed the restriction that multiple collapsed loops must be perfectly nested, allowing "intervening code" (including nested BLOCKs) before or after each nested loop. In GCC this code is moved into the inner loop body by the respective front ends. In the Fortran front end, most of the semantic processing happens during the translation phase, so the parse phase just collects the intervening statements, checks them for errors, and splices them around the loop body. gcc/fortran/ChangeLog * gfortran.h (struct gfc_namespace): Add omp_structured_block bit. * openmp.cc: Include omp-api.h. (resolve_omp_clauses): Consolidate inscan reduction clause conflict checking here. (find_nested_loop_in_chain): New. (find_nested_loop_in_block): New. (gfc_resolve_omp_do_blocks): Set omp_current_do_collapse properly. Handle imperfectly-nested loops when looking for nested omp scan. Refactor to move inscan reduction clause conflict checking to resolve_omp_clauses. (gfc_resolve_do_iterator): Handle imperfectly-nested loops. (struct icode_error_state): New. (icode_code_error_callback): New. (icode_expr_error_callback): New. (diagnose_intervening_code_errors_1): New. (diagnose_intervening_code_errors): New. (make_structured_block): New. (restructure_intervening_code): New. (is_outer_iteration_variable): Do not assume loops are perfectly nested. (check_nested_loop_in_chain): New. (check_nested_loop_in_block_state): New. (check_nested_loop_in_block_symbol): New. (check_nested_loop_in_block): New. (expr_uses_intervening_var): New. (is_intervening_var): New. (expr_is_invariant): Do not assume loops are perfectly nested. (resolve_omp_do): Handle imperfectly-nested loops. * trans-stmt.cc (gfc_trans_block_construct): Generate OMP_STRUCTURED_BLOCK if magic bit is set on block namespace. gcc/testsuite/ChangeLog * gfortran.dg/gomp/collapse1.f90: Adjust expected errors. * gfortran.dg/gomp/collapse2.f90: Likewise. * gfortran.dg/gomp/imperfect-gotos.f90: New. * gfortran.dg/gomp/imperfect-invalid-scope.f90: New. * gfortran.dg/gomp/imperfect1.f90: New. * gfortran.dg/gomp/imperfect2.f90: New. * gfortran.dg/gomp/imperfect3.f90: New. * gfortran.dg/gomp/imperfect4.f90: New. * gfortran.dg/gomp/imperfect5.f90: New. libgomp/ChangeLog * testsuite/libgomp.fortran/imperfect-destructor.f90: New. * testsuite/libgomp.fortran/imperfect1.f90: New. * testsuite/libgomp.fortran/imperfect2.f90: New. * testsuite/libgomp.fortran/imperfect3.f90: New. * testsuite/libgomp.fortran/imperfect4.f90: New. * testsuite/libgomp.fortran/target-imperfect1.f90: New. * testsuite/libgomp.fortran/target-imperfect2.f90: New. * testsuite/libgomp.fortran/target-imperfect3.f90: New. * testsuite/libgomp.fortran/target-imperfect4.f90: New.
2023-08-22OpenMP: Handle 'all' as category in defaultmapTobias Burnus1-3/+9
Both, specifying no category and specifying 'all', implies that the implicit-behavior applies to all categories. gcc/c/ChangeLog: * c-parser.cc (c_parser_omp_clause_defaultmap): Parse 'all' as category. gcc/cp/ChangeLog: * parser.cc (cp_parser_omp_clause_defaultmap): Parse 'all' as category. gcc/fortran/ChangeLog: * gfortran.h (enum gfc_omp_defaultmap_category): Add OMP_DEFAULTMAP_CAT_ALL. * openmp.cc (gfc_match_omp_clauses): Parse 'all' as category. * trans-openmp.cc (gfc_trans_omp_clauses): Handle it. gcc/ChangeLog: * tree-core.h (enum omp_clause_defaultmap_kind): Add OMP_CLAUSE_DEFAULTMAP_CATEGORY_ALL. * gimplify.cc (gimplify_scan_omp_clauses): Handle it. * tree-pretty-print.cc (dump_omp_clause): Likewise. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2 status): Add depobj with destroy-var argument as 'N'. Mark defaultmap with 'all' category as 'Y'. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/defaultmap-1.f90: Update dg-error. * c-c++-common/gomp/defaultmap-5.c: New test. * c-c++-common/gomp/defaultmap-6.c: New test. * gfortran.dg/gomp/defaultmap-10.f90: New test. * gfortran.dg/gomp/defaultmap-9.f90: New test.
2023-08-15OpenACC 2.7: default clause support for data constructsChung-Lin Tang1-1/+2
This patch implements the OpenACC 2.7 addition of default(none|present) support for data constructs. Now, specifying "default(none|present)" on a data construct turns on same default clause behavior for all lexically enclosed compute constructs (which don't already themselves have a default clause). gcc/c/ChangeLog: * c-parser.cc (OACC_DATA_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_DEFAULT. gcc/cp/ChangeLog: * parser.cc (OACC_DATA_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_DEFAULT. gcc/fortran/ChangeLog: * openmp.cc (OACC_DATA_CLAUSES): Add OMP_CLAUSE_DEFAULT. gcc/ChangeLog: * gimplify.cc (oacc_region_type_name): New function. (oacc_default_clause): If no 'default' clause appears on this compute construct, see if one appears on a lexically containing 'data' construct. (gimplify_scan_omp_clauses): Upon OMP_CLAUSE_DEFAULT case, set ctx->oacc_default_clause_ctx to current context. gcc/testsuite/ChangeLog: * c-c++-common/goacc/default-3.c: Adjust testcase. * c-c++-common/goacc/default-4.c: Adjust testcase. * c-c++-common/goacc/default-5.c: Adjust testcase. * gfortran.dg/goacc/default-3.f95: Adjust testcase. * gfortran.dg/goacc/default-4.f: Adjust testcase. * gfortran.dg/goacc/default-5.f: Adjust testcase. Co-authored-by: Thomas Schwinge <thomas@codesourcery.com>
2023-07-31OpenACC 2.7: host_data must have use_device clause requirementChung-Lin Tang1-0/+6
This patch implements the OpenACC 2.7 change requiring the host_data construct to have at least one use_device clause. gcc/c/ChangeLog: * c-parser.cc (c_parser_oacc_host_data): Add checking requiring OpenACC host_data construct to have an use_device clause. gcc/cp/ChangeLog: * parser.cc (cp_parser_oacc_host_data): Add checking requiring OpenACC host_data construct to have an use_device clause. gcc/fortran/ChangeLog: * openmp.cc (resolve_omp_clauses): Add checking requiring OpenACC host_data construct to have an use_device clause. gcc/testsuite/ChangeLog: * c-c++-common/goacc/host_data-2.c: Adjust testcase. * gfortran.dg/goacc/host_data-error.f90: New testcase. * gfortran.dg/goacc/pr71704.f90: Adjust testcase.
2023-07-27OpenMP/Fortran: Extend reject code between target + teams [PR71065, PR110725]Tobias Burnus1-7/+6
The previous version failed to diagnose when the 'teams' was nested more deeply inside the target region, e.g. inside a DO or some block or structured block. PR fortran/110725 PR middle-end/71065 gcc/fortran/ChangeLog: * openmp.cc (resolve_omp_target): Minor cleanup. * parse.cc (decode_omp_directive): Find TARGET statement also higher in the stack. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/teams-6.f90: Extend.
2023-07-25OpenMP/Fortran: Reject declarations between target + teamsTobias Burnus1-6/+7
While commit r14-2754-g2e31fe431b08b0302e1fa8a1c18ee51adafd41df detected executable statements, declarations do not show up as executable statements. Hence, we now check whether the first statement after TARGET is TEAMS - such that we can detect data statements like type or variable declarations. Fortran semantics ensures that only executable directives/statemens can come after '!$omp end teams' such that those can be detected with the previous check. Note that statements returning ST_NONE such as 'omp nothing' or 'omp error at(compilation)' will still slip through. PR fortran/110725 PR middle-end/71065 gcc/fortran/ChangeLog: * gfortran.h (gfc_omp_clauses): Add target_first_st_is_teams. * parse.cc (parse_omp_structured_block): Set it if the first statement in the structured block of a TARGET is TEAMS or a combined/composite starting with TEAMS. * openmp.cc (resolve_omp_target): Also show an error for contains_teams_construct without target_first_st_is_teams. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/teams-6.f90: New test.
2023-07-24OpenMP/Fortran: Reject not strictly nested target -> teams [PR110725, PR71065]Tobias Burnus1-1/+38
OpenMP requires: "If a teams region is nested inside a target region, the corresponding target construct must not contain any statements, declarations or directives outside of the corresponding teams construct." This commit checks now for this restriction. PR fortran/110725 PR middle-end/71065 gcc/fortran/ChangeLog: * gfortran.h (gfc_omp_clauses): Add contains_teams_construct. * openmp.cc (resolve_omp_target): New; check for teams nesting. (gfc_resolve_omp_directive): Call it. * parse.cc (decode_omp_directive): Set contains_teams_construct on enclosing ST_OMP_TARGET. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/pr99226.f90: Update dg-error. * gfortran.dg/gomp/teams-5.f90: New test.
2023-07-17OpenMP/Fortran: Parsing support for 'uses_allocators'Tobias Burnus1-16/+178
The 'uses_allocators' clause to the 'target' construct accepts predefined allocators and can also be used to define a new allocator for a target region. As predefined allocators in GCC do not require special handling, those can and are ignored after parsing, such that this feature now works. On the other hand, defining a new allocator will fail for now with a 'sorry, unimplemented'. Note that both the OpenMP 5.0/5.1 and 5.2 syntax for uses_allocators is supported by this commit. 2023-07-17 Tobias Burnus <tobias@codesoucery.com> Chung-Lin Tang <cltang@codesourcery.com> gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_namelist, show_omp_clauses): Dump uses_allocators clause. * gfortran.h (gfc_free_omp_namelist): Add memspace_sym to u union and traits_sym to u2 union. (OMP_LIST_USES_ALLOCATORS): New enum value. (gfc_free_omp_namelist): Add 'bool free_mem_traits_space' arg. * match.cc (gfc_free_omp_namelist): Likewise. * openmp.cc (gfc_free_omp_clauses, gfc_match_omp_variable_list, gfc_match_omp_to_link, gfc_match_omp_doacross_sink, gfc_match_omp_clause_reduction, gfc_match_omp_allocate, gfc_match_omp_flush): Update call. (gfc_match_omp_clauses): Likewise. Parse uses_allocators clause. (gfc_match_omp_clause_uses_allocators): New. (enum omp_mask2): Add new OMP_CLAUSE_USES_ALLOCATORS. (OMP_TARGET_CLAUSES): Accept it. (resolve_omp_clauses): Resolve uses_allocators clause * st.cc (gfc_free_statement): Update gfc_free_omp_namelist call. * trans-openmp.cc (gfc_trans_omp_clauses): Handle OMP_LIST_USES_ALLOCATORS; fail with sorry unless predefined allocator. (gfc_split_omp_clauses): Handle uses_allocators. libgomp/ChangeLog: * testsuite/libgomp.fortran/uses_allocators_1.f90: New test. * testsuite/libgomp.fortran/uses_allocators_2.f90: New test. Co-authored-by: Chung-Lin Tang <cltang@codesourcery.com>
2023-06-06openmp: Add support for the 'present' modifierTobias Burnus1-13/+85
This implements support for the OpenMP 5.1 'present' modifier, which can be used in map clauses in the 'target', 'target data', 'target data enter' and 'target data exit' constructs, and in the 'to' and 'from' clauses of the 'target update' construct. It is also supported in defaultmap. The modifier triggers a fatal runtime error if the data specified by the clause is not already present on the target device. It can also be combined with 'always' in map clauses. 2023-06-06 Kwok Cheung Yeung <kcy@codesourcery.com> Tobias Burnus <tobias@codesourcery.com> gcc/c/ * c-parser.cc (c_parser_omp_clause_defaultmap, c_parser_omp_clause_map): Parse 'present'. (c_parser_omp_clause_to, c_parser_omp_clause_from): Remove. (c_parser_omp_clause_from_to): New; parse to/from clauses with optional present modifer. (c_parser_omp_all_clauses): Update call. (c_parser_omp_target_data, c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Handle new map enum values for 'present' mapping. gcc/cp/ * parser.cc (cp_parser_omp_clause_defaultmap, cp_parser_omp_clause_map): Parse 'present'. (cp_parser_omp_clause_from_to): New; parse to/from clauses with optional 'present' modifier. (cp_parser_omp_all_clauses): Update call. (cp_parser_omp_target_data, cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data): Handle new enum value for 'present' mapping. * semantics.cc (finish_omp_target): Likewise. gcc/fortran/ * dump-parse-tree.cc (show_omp_namelist): Display 'present' map modifier. (show_omp_clauses): Display 'present' motion modifier for 'to' and 'from' clauses. * gfortran.h (enum gfc_omp_map_op): Add entries with 'present' modifiers. (struct gfc_omp_namelist): Add 'present_modifer'. * openmp.cc (gfc_match_motion_var_list): New, handles optional 'present' modifier for to/from clauses. (gfc_match_omp_clauses): Call it for to/from clauses; parse 'present' in defaultmap and map clauses. (resolve_omp_clauses): Allow 'present' modifiers on 'target', 'target data', 'target enter' and 'target exit' directives. * trans-openmp.cc (gfc_trans_omp_clauses): Apply 'present' modifiers to tree node for 'map', 'to' and 'from' clauses. Apply 'present' for defaultmap. gcc/ * gimplify.cc (omp_notice_variable): Apply GOVD_MAP_ALLOC_ONLY flag and defaultmap flags if the defaultmap has GOVD_MAP_FORCE_PRESENT flag set. (omp_get_attachment): Handle map clauses with 'present' modifier. (omp_group_base): Likewise. (gimplify_scan_omp_clauses): Reorder present maps to come first. Set GOVD flags for present defaultmaps. (gimplify_adjust_omp_clauses_1): Set map kind for present defaultmaps. * omp-low.cc (scan_sharing_clauses): Handle 'always, present' map clauses. (lower_omp_target): Handle map clauses with 'present' modifier. Handle 'to' and 'from' clauses with 'present'. * tree-core.h (enum omp_clause_defaultmap_kind): Add OMP_CLAUSE_DEFAULTMAP_PRESENT defaultmap kind. * tree-pretty-print.cc (dump_omp_clause): Handle 'map', 'to' and 'from' clauses with 'present' modifier. Handle present defaultmap. * tree.h (OMP_CLAUSE_MOTION_PRESENT): New #define. include/ * gomp-constants.h (GOMP_MAP_FLAG_SPECIAL_5): New. (GOMP_MAP_FLAG_FORCE): Redefine. (GOMP_MAP_FLAG_PRESENT, GOMP_MAP_FLAG_ALWAYS_PRESENT): New. (enum gomp_map_kind): Add map kinds with 'present' modifiers. (GOMP_MAP_COPY_TO_P, GOMP_MAP_COPY_FROM_P): Evaluate to true for map variants with 'present' (GOMP_MAP_ALWAYS_TO_P, GOMP_MAP_ALWAYS_FROM_P): Evaluate to true for map variants with 'always, present' modifiers. (GOMP_MAP_ALWAYS): Redefine. (GOMP_MAP_FORCE_P, GOMP_MAP_PRESENT_P): New. libgomp/ * libgomp.texi (OpenMP 5.1 Impl. status): Set 'present' support for defaultmap to 'Y', add 'Y' entry for 'present' on to/from/map clauses. * target.c (gomp_to_device_kind_p): Add map kinds with 'present' modifier. (gomp_map_vars_existing): Use new GOMP_MAP_FORCE_P macro. (gomp_map_vars_internal, gomp_update, gomp_target_rev): Emit runtime error if memory region not present. * testsuite/libgomp.c-c++-common/target-present-1.c: New test. * testsuite/libgomp.c-c++-common/target-present-2.c: New test. * testsuite/libgomp.c-c++-common/target-present-3.c: New test. * testsuite/libgomp.fortran/target-present-1.f90: New test. * testsuite/libgomp.fortran/target-present-2.f90: New test. * testsuite/libgomp.fortran/target-present-3.f90: New test. gcc/testsuite/ * c-c++-common/gomp/map-6.c: Update dg-error, extend to test for duplicated 'present' and extend scan-dump tests for 'present'. * gfortran.dg/gomp/defaultmap-1.f90: Update dg-error. * gfortran.dg/gomp/map-7.f90: Extend parse and dump test for 'present'. * gfortran.dg/gomp/map-8.f90: Extend for duplicate 'present' modifier checking. * c-c++-common/gomp/defaultmap-4.c: New test. * c-c++-common/gomp/map-9.c: New test. * c-c++-common/gomp/target-update-1.c: New test. * gfortran.dg/gomp/defaultmap-8.f90: New test. * gfortran.dg/gomp/map-11.f90: New test. * gfortran.dg/gomp/map-12.f90: New test. * gfortran.dg/gomp/target-update-1.f90: New test.
2023-05-26Fortran/OpenMP: Add parsing support for allocators/allocate directivesTobias Burnus1-25/+308
gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_namelist): Update allocator, fix align dump. (show_omp_node, show_code_node): Handle EXEC_OMP_ALLOCATE. * gfortran.h (enum gfc_statement): Add ST_OMP_ALLOCATE and ..._EXEC. (enum gfc_exec_op): Add EXEC_OMP_ALLOCATE. (struct gfc_omp_namelist): Add 'allocator' to 'u2' union. (struct gfc_namespace): Add omp_allocate. (gfc_resolve_omp_allocate): New. * match.cc (gfc_free_omp_namelist): Free 'u2.allocator'. * match.h (gfc_match_omp_allocate, gfc_match_omp_allocators): New. * openmp.cc (gfc_omp_directives): Uncomment allocate/allocators. (gfc_match_omp_variable_list): Add bool arg for rejecting listening common-block vars separately. (gfc_match_omp_clauses): Update for u2.allocators. (OMP_ALLOCATORS_CLAUSES, gfc_match_omp_allocate, gfc_match_omp_allocators, is_predefined_allocator, gfc_resolve_omp_allocate): New. (resolve_omp_clauses): Update 'allocate' clause checks. (omp_code_to_statement, gfc_resolve_omp_directive): Handle OMP ALLOCATE/ALLOCATORS. * parse.cc (in_exec_part): New global var. (check_omp_allocate_stmt, parse_openmp_allocate_block): New. (decode_omp_directive, case_exec_markers, case_omp_decl, gfc_ascii_statement, parse_omp_structured_block): Handle OMP allocate/allocators. (verify_st_order, parse_executable): Set in_exec_part. * resolve.cc (gfc_resolve_blocks, resolve_codes): Handle allocate/allocators. * st.cc (gfc_free_statement): Likewise. * trans.cc (trans_code): Likewise. * trans-openmp.cc (gfc_trans_omp_directive): Likewise. (gfc_trans_omp_clauses, gfc_split_omp_clauses): Update for u2.allocator, fix for u.align. libgomp/ChangeLog: * testsuite/libgomp.fortran/allocate-4.f90: Update dg-error. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/allocate-2.f90: Update dg-error. * gfortran.dg/gomp/allocate-4.f90: New test. * gfortran.dg/gomp/allocate-5.f90: New test. * gfortran.dg/gomp/allocate-6.f90: New test. * gfortran.dg/gomp/allocate-7.f90: New test. * gfortran.dg/gomp/allocators-1.f90: New test. * gfortran.dg/gomp/allocators-2.f90: New test.
2023-05-04OpenACC: Further attach/detach clause fixes for Fortran [PR109622]Julian Brown1-0/+16
This patch moves several tests introduced by the following patch: https://gcc.gnu.org/pipermail/gcc-patches/2023-April/616939.html commit r14-325-gcacf65d74463600815773255e8b82b4043432bd7 into the proper location for OpenACC testing (thanks to Thomas for spotting my mistake!), and also fixes a few additional problems -- missing diagnostics for non-pointer attaches, and a case where a pointer was incorrectly dereferenced. Tests are also adjusted for vector-length warnings on nvidia accelerators. 2023-04-29 Julian Brown <julian@codesourcery.com> PR fortran/109622 gcc/fortran/ * openmp.cc (resolve_omp_clauses): Add diagnostic for non-pointer/non-allocatable attach/detach. * trans-openmp.cc (gfc_trans_omp_clauses): Remove dereference for pointer-to-scalar derived type component attach/detach. Fix attach/detach handling for descriptors. gcc/testsuite/ * gfortran.dg/goacc/pr109622-5.f90: New test. * gfortran.dg/goacc/pr109622-6.f90: New test. libgomp/ * testsuite/libgomp.fortran/pr109622.f90: Move test... * testsuite/libgomp.oacc-fortran/pr109622.f90: ...to here. Ignore vector length warning. * testsuite/libgomp.fortran/pr109622-2.f90: Move test... * testsuite/libgomp.oacc-fortran/pr109622-2.f90: ...to here. Add missing copyin/copyout variable. Ignore vector length warnings. * testsuite/libgomp.fortran/pr109622-3.f90: Move test... * testsuite/libgomp.oacc-fortran/pr109622-3.f90: ...to here. Ignore vector length warnings. * testsuite/libgomp.oacc-fortran/pr109622-4.f90: New test.
2023-04-25'omp scan' struct block seq update for OpenMP 5.xTobias Burnus1-9/+26
While OpenMP 5.0 required a single structured block before and after the 'omp scan' directive, OpenMP 5.1 changed this to a 'structured block sequence, denoting 2 or more executable statements in OpenMP 5.1 (whoops!) and zero or more in OpenMP 5.2. This commit updates C/C++ to accept zero statements (but till requires the '{' ... '}' for the final-loop-body) and updates Fortran to accept zero or more than one statements. If there is no preceeding or succeeding executable statement, a warning is shown. gcc/c/ChangeLog: * c-parser.cc (c_parser_omp_scan_loop_body): Handle zero exec statements before/after 'omp scan'. gcc/cp/ChangeLog: * parser.cc (cp_parser_omp_scan_loop_body): Handle zero exec statements before/after 'omp scan'. gcc/fortran/ChangeLog: * openmp.cc (gfc_resolve_omp_do_blocks): Handle zero or more than one exec statements before/after 'omp scan'. * trans-openmp.cc (gfc_trans_omp_do): Likewise. libgomp/ChangeLog: * testsuite/libgomp.c-c++-common/scan-1.c: New test. * testsuite/libgomp.c/scan-23.c: New test. * testsuite/libgomp.fortran/scan-2.f90: New test. gcc/testsuite/ChangeLog: * g++.dg/gomp/attrs-7.C: Update dg-error/dg-warning. * gfortran.dg/gomp/loop-2.f90: Likewise. * gfortran.dg/gomp/reduction5.f90: Likewise. * gfortran.dg/gomp/reduction6.f90: Likewise. * gfortran.dg/gomp/scan-1.f90: Likewise. * gfortran.dg/gomp/taskloop-2.f90: Likewise. * c-c++-common/gomp/scan-6.c: New test. * gfortran.dg/gomp/scan-8.f90: New test.
2023-03-28openmp: Fix typo in diagnostics [PR109314]Jakub Jelinek1-1/+1
Trivial typo fix. 2023-03-28 Jakub Jelinek <jakub@redhat.com> PR fortran/109314 * openmp.cc (gfc_omp_absent_contains_clause): Fix typo in diagnostics - composit -> composite.
2023-02-15OpenMP/Fortran: Fix loop-iter var privatization with !$OMP LOOP [PR108512]Tobias Burnus1-4/+9
For 'parallel', loop-iteration variables are marked are marked as 'private', unless they either appear in an omp do/simd loop or an data-sharing clause already exists for those on 'parallel'. 'omp loop' wasn't handled, leading to (potentially) multiple data-sharing clauses in gfc_resolve_do_iterator as omp_current_ctx pointed to the 'parallel' directive, ignoring the in-betwen 'loop' directive. The latter lead to a bogus diagnostic - or rather an ICE as the source location var contained only '\0'. Additionally, several 'case EXEC_OMP...LOOP' have been added to call the right resolution function and likewise for '{masked,master} taskloop'. gcc/fortran/ChangeLog: PR fortran/108512 * openmp.cc (gfc_resolve_omp_parallel_blocks): Handle combined 'loop' directives. (gfc_resolve_do_iterator): Set a source location for added 'private'-clause arguments. * resolve.cc (gfc_resolve_code): Call gfc_resolve_omp_do_blocks also for EXEC_OMP_LOOP and gfc_resolve_omp_parallel_blocks for combined directives with loop + '{masked,master} taskloop (simd)'. gcc/testsuite/ChangeLog: PR fortran/108512 * gfortran.dg/gomp/loop-5.f90: New test. * gfortran.dg/gomp/loop-2.f90: Update dg-error. * gfortran.dg/gomp/taskloop-2.f90: Update dg-error.
2023-02-01Fortran: Extend align-clause checks of OpenMP's allocate directiveTobias Burnus1-4/+5
gcc/fortran/ChangeLog: * openmp.cc (resolve_omp_clauses): Check also for power of two. libgomp/ChangeLog: * testsuite/libgomp.fortran/allocate-3.f90: Fix ALIGN usage, remove unused -fdump-tree-original. * testsuite/libgomp.fortran/allocate-4.f90: New.
2023-01-16Update copyright years.Jakub Jelinek1-1/+1
2023-01-12Fortran/OpenMP: Reject non-scalar 'holds' expr in 'omp assume(s)' [PR107706]Tobias Burnus1-3/+5
gcc/fortran/ChangeLog: PR fortran/107706 * openmp.cc (gfc_resolve_omp_assumptions): Reject nonscalars. gcc/testsuite/ChangeLog: PR fortran/107706 * gfortran.dg/gomp/assume-2.f90: Update dg-error. * gfortran.dg/gomp/assumes-2.f90: Likewise. * gfortran.dg/gomp/assume-5.f90: New test.
2022-12-14OpenMP: Duplicate checking for map clauses in Fortran (PR107214)Julian Brown1-17/+92
This patch adds duplicate checking for OpenMP "map" clauses, taking some cues from the implementation for C in c-typeck.cc:c_finish_omp_clauses (and similar for C++). In addition to the existing use of the "mark" and "comp_mark" bitfields in the gfc_symbol structure, the patch adds several new bits handling duplicate checking within various categories of clause types. If "mark" is being used for map clauses, we need to use different bits for other clauses for cases where "map" and some other clause can refer to the same symbol (e.g. "map(n) shared(n)"). 2022-12-06 Julian Brown <julian@codesourcery.com> gcc/fortran/ PR fortran/107214 * gfortran.h (gfc_symbol): Add data_mark, dev_mark, gen_mark and reduc_mark bitfields. * openmp.cc (resolve_omp_clauses): Use above bitfields to improve duplicate clause detection. gcc/testsuite/ PR fortran/107214 * gfortran.dg/gomp/pr107214.f90: New test. * gfortran.dg/gomp/pr107214-2.f90: New test. * gfortran.dg/gomp/pr107214-3.f90: New test. * gfortran.dg/gomp/pr107214-4.f90: New test. * gfortran.dg/gomp/pr107214-5.f90: New test. * gfortran.dg/gomp/pr107214-6.f90: New test. * gfortran.dg/gomp/pr107214-7.f90: New test. * gfortran.dg/gomp/pr107214-8.f90: New test.
2022-12-11fortran/openmp.cc: Remove 's' that slipped in during %<..%> replacementTobias Burnus1-1/+1
Seemingly, 's' (in VI that's the 's'ubstitute command) appeared verbatim in a gfc_error message when to doing the '...' to %<...%> replacements in commit r13-4590-g84f6f8a2a97f88be01e223c9c9dbab801a4f501f gcc/fortran/ * openmp.cc (gfc_match_omp_context_selector_specification): Remove spurious 's' in an error message.
2022-12-10Fortran: Replace simple '.' quotes by %<.%>Tobias Burnus1-19/+19
When using %qs instead of '%s' or %<=%> instead of '=' looks nicer by having nicer quotes and bold text, if the terminal supports it; otherwise, plain quotes are used. gcc/fortran/ChangeLog: * match.cc (gfc_match_member_sep): Use %<...%> in gfc_error. * openmp.cc (gfc_match_oacc_routine, gfc_match_omp_context_selector, gfc_match_omp_context_selector_specification, gfc_match_omp_declare_variant, resolve_omp_clauses): Likewise; use %qs instead of '%s'. * primary.cc (match_real_constant, gfc_match_varspec): Likewise. * resolve.cc (gfc_resolve_formal_arglist, resolve_operator, resolve_ordinary_assign): Likewise.
2022-12-09Fortran/OpenMP: align/allocator modifiers to the allocate clauseTobias Burnus1-35/+71
gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_namelist): Improve OMP_LIST_ALLOCATE output. * gfortran.h (struct gfc_omp_namelist): Add 'align' to 'u'. (gfc_free_omp_namelist): Add bool arg. * match.cc (gfc_free_omp_namelist): Likewise; free 'u.align'. * openmp.cc (gfc_free_omp_clauses, gfc_match_omp_clause_reduction, gfc_match_omp_flush): Update call. (gfc_match_omp_clauses): Match 'align/allocate modifers in 'allocate' clause. (resolve_omp_clauses): Resolve align. * st.cc (gfc_free_statement): Update call * trans-openmp.cc (gfc_trans_omp_clauses): Handle 'align'. libgomp/ChangeLog: * libgomp.texi (5.1 Impl. Status): Split allocate clause/directive item about 'align'; mark clause as 'Y' and directive as 'N'. * testsuite/libgomp.fortran/allocate-2.f90: New test. * testsuite/libgomp.fortran/allocate-3.f90: New test.
2022-11-28OpenMP/Fortran: Permit end-clause on directiveTobias Burnus1-30/+27
gcc/fortran/ChangeLog: * openmp.cc (OMP_DO_CLAUSES, OMP_SCOPE_CLAUSES, OMP_SECTIONS_CLAUSES): Add 'nowait'. (OMP_SINGLE_CLAUSES): Add 'nowait' and 'copyprivate'. (gfc_match_omp_distribute_parallel_do, gfc_match_omp_distribute_parallel_do_simd, gfc_match_omp_parallel_do, gfc_match_omp_parallel_do_simd, gfc_match_omp_parallel_sections, gfc_match_omp_teams_distribute_parallel_do, gfc_match_omp_teams_distribute_parallel_do_simd): Disallow 'nowait'. (gfc_match_omp_workshare): Match 'nowait' clause. (gfc_match_omp_end_single): Use clause matcher for 'nowait'. (resolve_omp_clauses): Reject 'nowait' + 'copyprivate'. * parse.cc (decode_omp_directive): Break too long line. (parse_omp_do, parse_omp_structured_block): Diagnose duplicated 'nowait' clause. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2): Mark end-directive as Y. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/copyprivate-1.f90: New test. * gfortran.dg/gomp/copyprivate-2.f90: New test. * gfortran.dg/gomp/nowait-2.f90: Move dg-error tests ... * gfortran.dg/gomp/nowait-4.f90: ... to this new file. * gfortran.dg/gomp/nowait-5.f90: New test. * gfortran.dg/gomp/nowait-6.f90: New test. * gfortran.dg/gomp/nowait-7.f90: New test. * gfortran.dg/gomp/nowait-8.f90: New test.
2022-11-03OpenMP/Fortran: 'target update' with DT componentsTobias Burnus1-4/+6
OpenMP 5.0 permits to use arrays with derived type components for the list items to the 'from'/'to' clauses of the 'target update' directive. gcc/fortran/ChangeLog: * openmp.cc (gfc_match_omp_clauses): Permit derived types for the 'to' and 'from' clauses of 'target update'. * trans-openmp.cc (gfc_trans_omp_clauses): Fixes for derived-type changes; fix size for scalars. libgomp/ChangeLog: * testsuite/libgomp.fortran/target-11.f90: New test. * testsuite/libgomp.fortran/target-13.f90: New test.
2022-10-05Fortran: Add OpenMP's assume(s) directivesTobias Burnus1-0/+403
libgomp/ChangeLog: * libgomp.texi (OpenMP 5.1 Impl. Status): Mark 'assume' as 'Y'. gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_assumes): New. (show_omp_clauses, show_namespace): Call it. (show_omp_node, show_code_node): Handle OpenMP ASSUME. * gfortran.h (enum gfc_statement): Add ST_OMP_ASSUME, ST_OMP_END_ASSUME, ST_OMP_ASSUMES and ST_NOTHING. (gfc_exec_op): Add EXEC_OMP_ASSUME. (gfc_omp_assumptions): New struct. (gfc_get_omp_assumptions): New XCNEW #define. (gfc_omp_clauses, gfc_namespace): Add assume member. (gfc_resolve_omp_assumptions): New prototype. * match.h (gfc_match_omp_assume, gfc_match_omp_assumes): New. * openmp.cc (omp_code_to_statement): Forward declare. (enum gfc_omp_directive_kind, struct gfc_omp_directive): New. (gfc_free_omp_clauses): Free assume member and its struct data. (enum omp_mask2): Add OMP_CLAUSE_ASSUMPTIONS. (gfc_omp_absent_contains_clause): New. (gfc_match_omp_clauses): Call it; optionally use passed omp_clauses argument. (omp_verify_merge_absent_contains, gfc_match_omp_assume, gfc_match_omp_assumes, gfc_resolve_omp_assumptions): New. (resolve_omp_clauses): Call the latter. (gfc_resolve_omp_directive, omp_code_to_statement): Handle EXEC_OMP_ASSUME. * parse.cc (decode_omp_directive): Parse OpenMP ASSUME(S). (next_statement, parse_executable, parse_omp_structured_block): Handle ST_OMP_ASSUME. (case_omp_decl): Add ST_OMP_ASSUMES. (gfc_ascii_statement): Handle Assumes, optional return string without '!$OMP '/'!$ACC ' prefix. * parse.h (gfc_ascii_statement): Add optional bool arg to prototype. * resolve.cc (gfc_resolve_blocks, gfc_resolve_code): Add EXEC_OMP_ASSUME. (gfc_resolve): Resolve ASSUMES directive. * symbol.cc (gfc_free_namespace): Free omp_assumes member. * st.cc (gfc_free_statement): Handle EXEC_OMP_ASSUME. * trans-openmp.cc (gfc_trans_omp_directive): Likewise. * trans.cc (trans_code): Likewise. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/assume-1.f90: New test. * gfortran.dg/gomp/assume-2.f90: New test. * gfortran.dg/gomp/assumes-1.f90: New test. * gfortran.dg/gomp/assumes-2.f90: New test.
2022-09-30Fortran: Update use_device_ptr for OpenMP 5.1 [PR105318]Tobias Burnus1-21/+49
OpenMP 5.1 added has_device_addr and relaxed the restrictions for use_device_ptr, including processing non-type(c_ptr) arguments as if has_device_addr was used. (There is a semantic difference.) For completeness, the likewise change was done for 'use_device_ptr', where non-type(c_ptr) arguments now use use_device_addr. Finally, a warning for 'device(omp_{initial,invalid}_device)' was silenced on the way as affecting the new testcase. PR fortran/105318 gcc/fortran/ChangeLog: * openmp.cc (resolve_omp_clauses): Update is_device_ptr restrictions for OpenMP 5.1 and map to has_device_addr where applicable; map use_device_ptr to use_device_addr where applicable. Silence integer-range warning for device(omp_{initial,invalid}_device). libgomp/ChangeLog: * testsuite/libgomp.fortran/is_device_ptr-2.f90: New test. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/is_device_ptr-1.f90: Remove dg-error. * gfortran.dg/gomp/is_device_ptr-2.f90: Likewise. * gfortran.dg/gomp/is_device_ptr-3.f90: Update tree-scan-dump.
2022-09-06Fix Fortran/openmp: Partial OpenMP 5.2 doacrossTobias Burnus1-4/+0
This removed a checking snippet which accidentally was left in in commit r13-2446-g938cda536019cd6a1bc0dd2346381185b420bbf8 ; this caused fails in gfortran.dg/gomp/doacross-5.f90 (added in that very commit). Note that a similar but refined check is now done in the middle end. (The ME version additionally checks whether doacross is present.) gcc/fortran/ * openmp.cc (resolve_omp_clauses): Remove ordered/linear check as it is handled now in the middle end.
2022-09-05Fortran/openmp: Partial OpenMP 5.2 doacross and omp_cur_iteration supportTobias Burnus1-84/+134
Add the Fortran support to the ME/C/C++ commit r13-2388-ga651e6d59188da8992f8bfae2df1cb4e6316f9e6 gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_namelist, show_omp_clauses): Handle omp_cur_iteration and distinguish doacross/depend. * gfortran.h (enum gfc_omp_depend_doacross_op): Renamed from gfc_omp_depend_op. (enum gfc_omp_depend_doacross_op): Add OMP_DOACROSS_SINK_FIRST, Rename OMP_DEPEND_SINK to OMP_DOACROSS_SINK. (gfc_omp_namelist) Handle renaming, rename depend_op to depend_doacross_op. (struct gfc_omp_clauses): Add doacross_source. * openmp.cc (gfc_match_omp_depend_sink): Renamed to ... (gfc_match_omp_doacross_sink): ... this; handle omp_all_memory. (enum omp_mask2): Add OMP_CLAUSE_DOACROSS. (gfc_match_omp_clauses): Handle 'doacross' and syntax changes to depend. (gfc_match_omp_depobj): Simplify as sink/source are now impossible. (gfc_match_omp_ordered_depend): Request OMP_CLAUSE_DOACROSS. (resolve_omp_clauses): Update sink/source checks. (gfc_resolve_omp_directive): Resolve EXEC_OMP_ORDERED clauses. * parse.cc (decode_omp_directive): Handle 'ordered doacross'. * trans-openmp.cc (gfc_trans_omp_clauses): Handle doacross. (gfc_trans_omp_do): Fix OMP_FOR_ORIG_DECLS handling if 'ordered' clause is present. (gfc_trans_omp_depobj): Update for member name change. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2): Update doacross/omp_cur_iteration status. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/all-memory-1.f90: Update dg-error. * gfortran.dg/gomp/depend-iterator-2.f90: Likewise. * gfortran.dg/gomp/depobj-2.f90: Likewise. * gfortran.dg/gomp/doacross-5.f90: New test. * gfortran.dg/gomp/doacross-6.f90: New test.
2022-08-17Fortran: OpenMP fix declare simd inside modules and absent linear step ↵Tobias Burnus1-3/+7
[PR106566] gcc/fortran/ChangeLog: PR fortran/106566 * openmp.cc (gfc_match_omp_clauses): Fix setting linear-step value to 1 when not specified. (gfc_match_omp_declare_simd): Accept module procedures. gcc/testsuite/ChangeLog: PR fortran/106566 * gfortran.dg/gomp/declare-simd-4.f90: New test. * gfortran.dg/gomp/declare-simd-5.f90: New test. * gfortran.dg/gomp/declare-simd-6.f90: New test.
2022-07-29OpenMP/Fortran: Permit assumed-size arrays in uniform clauseTobias Burnus1-1/+2
gcc/fortran/ChangeLog: * openmp.cc (resolve_omp_clauses): Permit assumed-size arrays in uniform clause. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/declare-simd-3.f90: New test.
2022-07-20Fortran: fix parsing of omp task affinity iterator clause [PR101330]Harald Anlauf1-1/+0
gcc/fortran/ChangeLog: PR fortran/101330 * openmp.cc (gfc_match_iterator): Remove left-over code from development that could lead to a crash on invalid input. gcc/testsuite/ChangeLog: PR fortran/101330 * gfortran.dg/gomp/affinity-clause-7.f90: New test.
2022-07-04OpenMP/Fortran: Add support for OpenMP 5.2 linear clause syntaxTobias Burnus1-20/+143
Fortran part to C/C++ commit r13-1002-g03b71406323ddc065b1d7837d8b43b17e4b048b5 gcc/fortran/ChangeLog: * gfortran.h (gfc_omp_namelist): Update by creating 'linear' struct, move 'linear_op' as 'op' to id and add 'old_modifier' to it. * dump-parse-tree.cc (show_omp_namelist): Update accordingly. * module.cc (mio_omp_declare_simd): Likewise. * trans-openmp.cc (gfc_trans_omp_clauses): Likewise. * openmp.cc (resolve_omp_clauses): Likewise; accept new-style 'val' modifier with do/simd. (gfc_match_omp_clauses): Handle OpenMP 5.2 linear clause syntax. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2): Mark linear-clause change as 'Y'. gcc/testsuite/ChangeLog: * c-c++-common/gomp/linear-4.c: New test. * gfortran.dg/gomp/linear-2.f90: New test. * gfortran.dg/gomp/linear-3.f90: New test. * gfortran.dg/gomp/linear-4.f90: New test. * gfortran.dg/gomp/linear-5.f90: New test. * gfortran.dg/gomp/linear-6.f90: New test. * gfortran.dg/gomp/linear-7.f90: New test. * gfortran.dg/gomp/linear-8.f90: New test. Co-authored-by: Jakub Jelinek <jakub@redhat.com>
2022-07-04OpenMP: Move omp requires checks to libgompTobias Burnus1-4/+0
Handle reverse_offload, unified_address, and unified_shared_memory requirements in libgomp by saving them alongside the offload table. When the device lto1 runs, it extracts the data for mkoffload. The latter than passes the value on to GOMP_offload_register_ver. lto1 (either the host one, with -flto [+ ENABLE_OFFLOADING], or in the offload-device lto1) also does the the consistency check is done, erroring out when the 'omp requires' clause use is inconsistent. For all in-principle supported devices, if a requirement cannot be fulfilled, the device is excluded from the (supported) devices list. Currently, none of those requirements are marked as supported for any of the non-host devices. gcc/c/ChangeLog: * c-parser.cc (c_parser_omp_target_data, c_parser_omp_target_update, c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Set OMP_REQUIRES_TARGET_USED. (c_parser_omp_requires): Remove sorry. gcc/ChangeLog: * config/gcn/mkoffload.cc (process_asm): Write '#include <stdint.h>'. (process_obj): Pass omp_requires_mask to GOMP_offload_register_ver. (main): Ask lto1 to obtain omp_requires_mask and pass it on. * config/nvptx/mkoffload.cc (process, main): Likewise. * lto-cgraph.cc (omp_requires_to_name): New. (input_offload_tables): Save omp_requires_mask. (output_offload_tables): Read it, check for consistency, save value for mkoffload. * omp-low.cc (lower_omp_target): Force output_offloadtables call for OMP_REQUIRES_TARGET_USED. gcc/cp/ChangeLog: * parser.cc (cp_parser_omp_target_data, cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data, cp_parser_omp_target_update): Set OMP_REQUIRES_TARGET_USED. (cp_parser_omp_requires): Remove sorry. gcc/fortran/ChangeLog: * openmp.cc (gfc_match_omp_requires): Remove sorry. * parse.cc (decode_omp_directive): Don't regard 'declare target' as target usage for 'omp requires'; add more flags to omp_requires_mask. include/ChangeLog: * gomp-constants.h (GOMP_VERSION): Bump to 2. (GOMP_REQUIRES_UNIFIED_ADDRESS, GOMP_REQUIRES_UNIFIED_SHARED_MEMORY, GOMP_REQUIRES_REVERSE_OFFLOAD, GOMP_REQUIRES_TARGET_USED): New defines. libgomp/ChangeLog: * libgomp-plugin.h (GOMP_OFFLOAD_get_num_devices): Add omp_requires_mask arg. * plugin/plugin-gcn.c (GOMP_OFFLOAD_get_num_devices): Likewise; return -1 when device available but omp_requires_mask != 0. * plugin/plugin-nvptx.c (GOMP_OFFLOAD_get_num_devices): Likewise. * oacc-host.c (host_get_num_devices, host_openacc_get_property): Update call. * oacc-init.c (resolve_device, acc_init_1, acc_shutdown_1, goacc_attach_host_thread_to_device, acc_get_num_devices, acc_set_device_num, get_property_any): Likewise. * target.c (omp_requires_mask): New global var. (gomp_requires_to_name): New. (GOMP_offload_register_ver): Handle passed omp_requires_mask. (gomp_target_init): Handle omp_requires_mask. * libgomp.texi (OpenMP 5.0): Update requires impl. status. (OpenMP 5.1): Add a missed item. (OpenMP 5.2): Mark linear-clause change as supported in C/C++. * testsuite/libgomp.c-c++-common/requires-1-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-1.c: New test. * testsuite/libgomp.c-c++-common/requires-2-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-2.c: New test. * testsuite/libgomp.c-c++-common/requires-3-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-3.c: New test. * testsuite/libgomp.c-c++-common/requires-4-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-4.c: New test. * testsuite/libgomp.c-c++-common/requires-5-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-5.c: New test. * testsuite/libgomp.c-c++-common/requires-6.c: New test. * testsuite/libgomp.c-c++-common/requires-7-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-7.c: New test. * testsuite/libgomp.fortran/requires-1-aux.f90: New test. * testsuite/libgomp.fortran/requires-1.f90: New test. liboffloadmic/ChangeLog: * plugin/libgomp-plugin-intelmic.cpp (GOMP_OFFLOAD_get_num_devices): Return -1 when device available but omp_requires_mask != 0. gcc/testsuite/ChangeLog: * c-c++-common/gomp/requires-4.c: Update dg-*. * c-c++-common/gomp/reverse-offload-1.c: Likewise. * c-c++-common/gomp/target-device-ancestor-2.c: Likewise. * c-c++-common/gomp/target-device-ancestor-3.c: Likewise. * c-c++-common/gomp/target-device-ancestor-4.c: Likewise. * c-c++-common/gomp/target-device-ancestor-5.c: Likewise. * gfortran.dg/gomp/target-device-ancestor-3.f90: Likewise. * gfortran.dg/gomp/target-device-ancestor-4.f90: Likewise. * gfortran.dg/gomp/target-device-ancestor-5.f90: Likewise. * gfortran.dg/gomp/target-device-ancestor-2.f90: Likewise. Move post-FE checks to ... * gfortran.dg/gomp/target-device-ancestor-2a.f90: ... this new file. * gfortran.dg/gomp/requires-8.f90: Update as we don't regard 'declare target' for the 'requires' usage requirement. Co-authored-by: Chung-Lin Tang <cltang@codesourcery.com> Co-authored-by: Thomas Schwinge <thomas@codesourcery.com>
2022-07-01OpenMP: Handle tofrom with target enter/exit dataTobias Burnus1-4/+16
In 5.2, a map clause can be map-entering or map-exiting, either containing 'tofrom'. The main reason for this is permit 'map(x)' with 'omp target enter/exit data', avoiding to specify 'to:/from:' explicitly. (OpenMP defaults to 'tofrom'.) gcc/c/ChangeLog: * c-parser.cc (c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Accept tofrom map-type modifier but use 'to' / 'from' internally. gcc/cp/ChangeLog: * parser.cc (cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data): Accept tofrom map-type modifier but use 'to' / 'from' internally. gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_namelist): For the map-type, also handle the always modifer and release/delete. * openmp.cc (resolve_omp_clauses): Accept tofrom map-type modifier for target enter/exit data, but use 'to' / 'from' internally. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2): Mark target enter/exit data with fromto as implemented. gcc/testsuite/ChangeLog: * c-c++-common/gomp/target-data-2.c: New test. * c-c++-common/gomp/target-data-3.c: New test. * gfortran.dg/gomp/target-data-1.f90: New test. * gfortran.dg/gomp/target-data-2.f90: New test.
2022-06-08OpenMP: Fortran - fix ancestor's requires reverse_offload checkTobias Burnus1-1/+8
gcc/fortran/ * openmp.cc (gfc_match_omp_clauses): Check also parent namespace for 'requires reverse_offload'. gcc/testsuite/ * gfortran.dg/gomp/target-device-ancestor-5.f90: New test.
2022-06-03OpenMP/Fortran: Add support for firstprivate and allocate clauses on scope ↵Tobias Burnus1-1/+2
construct Fortran commit to C/C++/backend commit r13-862-gf38b20d68fade5a922b9f68c4c3841e653d1b83c gcc/fortran/ChangeLog: * openmp.cc (OMP_SCOPE_CLAUSES): Add firstprivate and allocate. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2): Mark scope w/ firstprivate/allocate as Y. * testsuite/libgomp.fortran/scope-2.f90: New test. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/scope-5.f90: New test. * gfortran.dg/gomp/scope-6.f90: New test.
2022-05-28OpenMP/Fortran: Add support for enter clause on declare targetTobias Burnus1-22/+43
Fortran version to C/C++ commit r13-797-g0ccba4ed8571c18c7015413441e971 gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_clauses): Handle OMP_LIST_ENTER. * gfortran.h: Add OMP_LIST_ENTER. * openmp.cc (enum omp_mask2, OMP_DECLARE_TARGET_CLAUSES): Add OMP_CLAUSE_ENTER. (gfc_match_omp_clauses, gfc_match_omp_declare_target, resolve_omp_clauses): Handle 'enter' clause. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2): Mark 'enter' clause as supported. * testsuite/libgomp.fortran/declare-target-1.f90: Extend to test explicit 'to' and 'enter' clause. * testsuite/libgomp.fortran/declare-target-2.f90: Update accordingly. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/declare-target-2.f90: Add 'enter' clause test. * gfortran.dg/gomp/declare-target-4.f90: Likewise.
2022-05-27Fortran: Fix OpenMP clause name in error messageTobias Burnus1-1/+1
gcc/fortran/ChangeLog: * openmp.cc (gfc_check_omp_requires): Fix clause name in error. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/requires-4.f90: Update dg-error. * gfortran.dg/gomp/requires-8.f90: Update dg-error. Co-authored-by: Chung-Lin Tang <cltang@codesourcery.com>
2022-05-24OpenMP: Support nowait with Fortran [PR105378]Tobias Burnus1-1/+2
Fortran part to C/C++/libgomp commit r13-724-gb43836914bdc2a37563cf31359b2c4803bfe4374 gcc/fortran/ PR c/105378 * openmp.cc (gfc_match_omp_taskwait): Accept nowait. gcc/testsuite/ PR c/105378 * gfortran.dg/gomp/taskwait-depend-nowait-1.f90: New. libgomp/ PR c/105378 * libgomp.texi (OpenMP 5.1): Set 'taskwait nowait' to 'Y'. * testsuite/libgomp.fortran/taskwait-depend-nowait-1.f90: New.
2022-05-18OpenMP: Add Fortran support for inoutset depend-kindTobias Burnus1-4/+8
Fortran additions to the C/C++ + ME/libgomp commit r13-556-g2c16eb3157f86ae561468c540caf8eb326106b5f gcc/fortran/ChangeLog: * gfortran.h (enum gfc_omp_depend_op): Add OMP_DEPEND_INOUTSET. (gfc_omp_clauses): Enlarge ENUM_BITFIELD. * dump-parse-tree.cc (show_omp_namelist, show_omp_clauses): Handle 'inoutset' depend modifier. * openmp.cc (gfc_match_omp_clauses, gfc_match_omp_depobj): Likewise. * trans-openmp.cc (gfc_trans_omp_clauses, gfc_trans_omp_depobj): Likewise. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.1): Set 'inoutset' to Y. (OpenMP Context Selectors): Add missing comma. * testsuite/libgomp.fortran/depend-5.f90: Add inoutset test. * testsuite/libgomp.fortran/depend-6.f90: Likewise. * testsuite/libgomp.fortran/depend-7.f90: Likewise. * testsuite/libgomp.fortran/depend-inoutset-1.f90: New test. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/all-memory-1.f90: Add inoutset test. * gfortran.dg/gomp/all-memory-2.f90: Likewise. * gfortran.dg/gomp/depobj-1.f90: Likewise. * gfortran.dg/gomp/depobj-2.f90: Likewise.
2022-05-17OpenMP: Add omp_all_memory support to FortranTobias Burnus1-16/+63
Fortran part to the C/C++/backend implementation r13-337-g7f78783dbedca0183d193e475262ca3c489fd365 gcc/fortran/ChangeLog: * dump-parse-tree.cc (show_omp_namelist): Handle omp_all_memory. * openmp.cc (gfc_match_omp_variable_list, gfc_match_omp_depend_sink, gfc_match_omp_clauses, resolve_omp_clauses): Likewise. * trans-openmp.cc (gfc_trans_omp_clauses, gfc_trans_omp_depobj): Likewise. * resolve.cc (resolve_symbol): Reject it as symbol. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.1): Set omp_all_memory to 'Y'. * testsuite/libgomp.fortran/depend-5.f90: New test. * testsuite/libgomp.fortran/depend-6.f90: New test. * testsuite/libgomp.fortran/depend-7.f90: New test. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/all-memory-1.f90: New test. * gfortran.dg/gomp/all-memory-2.f90: New test. * gfortran.dg/gomp/all-memory-3.f90: New test.
2022-05-16Use more ARRAY_SIZE.Martin Liska1-2/+1
gcc/ada/ChangeLog: * locales.c (iso_639_1_to_639_3): Use ARRAY_SIZE. (language_name_to_639_3): Likewise. (country_name_to_3166): Likewise. gcc/analyzer/ChangeLog: * engine.cc (exploded_node::get_dot_fillcolor): Use ARRAY_SIZE. * function-set.cc (test_stdio_example): Likewise. * sm-file.cc (get_file_using_fns): Likewise. * sm-malloc.cc (malloc_state_machine::unaffected_by_call_p): Likewise. * sm-signal.cc (get_async_signal_unsafe_fns): Likewise. gcc/ChangeLog: * attribs.cc (diag_attr_exclusions): Use ARRAY_SIZE. (decls_mismatched_attributes): Likewise. * builtins.cc (c_strlen): Likewise. * cfg.cc (DEF_BASIC_BLOCK_FLAG): Likewise. * common/config/aarch64/aarch64-common.cc (aarch64_option_init_struct): Likewise. * config/aarch64/aarch64-builtins.cc (aarch64_lookup_simd_builtin_type): Likewise. (aarch64_init_simd_builtin_types): Likewise. (aarch64_init_builtin_rsqrt): Likewise. * config/aarch64/aarch64.cc (is_madd_op): Likewise. * config/arm/arm-builtins.cc (arm_lookup_simd_builtin_type): Likewise. (arm_init_simd_builtin_types): Likewise. * config/avr/gen-avr-mmcu-texi.cc (mcus[ARRAY_SIZE): Likewise. (c_prefix): Likewise. (main): Likewise. * config/c6x/c6x.cc (N_SAVE_ORDER): Likewise. * config/darwin-c.cc (darwin_register_frameworks): Likewise. * config/gcn/mkoffload.cc (process_obj): Likewise. * config/i386/i386-builtins.cc (get_builtin_code_for_version): Likewise. (fold_builtin_cpu): Likewise. * config/m32c/m32c.cc (PUSHM_N): Likewise. * config/nvptx/mkoffload.cc (process): Likewise. * config/rs6000/driver-rs6000.cc (host_detect_local_cpu): Likewise. * config/s390/s390.cc (NR_C_MODES): Likewise. * config/tilepro/gen-mul-tables.cc (find_sequences): Likewise. (create_insn_code_compression_table): Likewise. * config/vms/vms.cc (NBR_CRTL_NAMES): Likewise. * diagnostic-format-json.cc (json_from_expanded_location): Likewise. * dwarf2out.cc (ARRAY_SIZE): Likewise. * genhooks.cc (emit_documentation): Likewise. (emit_init_macros): Likewise. * gimple-ssa-sprintf.cc (format_floating): Likewise. * gimple-ssa-warn-access.cc (memmodel_name): Likewise. * godump.cc (keyword_hash_init): Likewise. * hash-table.cc (hash_table_higher_prime_index): Likewise. * input.cc (for_each_line_table_case): Likewise. * ipa-free-lang-data.cc (free_lang_data): Likewise. * ipa-inline.cc (sanitize_attrs_match_for_inline_p): Likewise. * optc-save-gen.awk: Likewise. * spellcheck.cc (test_metric_conditions): Likewise. * tree-vect-slp-patterns.cc (sizeof): Likewise. (ARRAY_SIZE): Likewise. * tree.cc (build_common_tree_nodes): Likewise. gcc/c-family/ChangeLog: * c-common.cc (ARRAY_SIZE): Use ARRAY_SIZE. (c_common_nodes_and_builtins): Likewise. * c-format.cc (check_tokens): Likewise. (check_plain): Likewise. * c-pragma.cc (c_pp_lookup_pragma): Likewise. (init_pragma): Likewise. * known-headers.cc (get_string_macro_hint): Likewise. (get_stdlib_header_for_name): Likewise. * c-attribs.cc: Likewise. gcc/c/ChangeLog: * c-decl.cc (match_builtin_function_types): Use ARRAY_SIZE. gcc/cp/ChangeLog: * module.cc (depset::entity_kind_name): Use ARRAY_SIZE. * name-lookup.cc (get_std_name_hint): Likewise. * parser.cc (cp_parser_new): Likewise. gcc/fortran/ChangeLog: * frontend-passes.cc (gfc_code_walker): Use ARRAY_SIZE. * openmp.cc (gfc_match_omp_context_selector_specification): Likewise. * trans-intrinsic.cc (conv_intrinsic_ieee_builtin): Likewise. * trans-types.cc (gfc_get_array_descr_info): Likewise. gcc/jit/ChangeLog: * jit-builtins.cc (find_builtin_by_name): Use ARRAY_SIZE. (get_string_for_type_id): Likewise. * jit-recording.cc (recording::context::context): Likewise. gcc/lto/ChangeLog: * lto-common.cc (lto_resolution_read): Use ARRAY_SIZE. * lto-lang.cc (lto_init): Likewise.
2022-05-05Fortran: Add support for OMP non-rectangular loops.Sandra Loosemore1-18/+141
This patch adds support for OMP 5.1 "canonical loop nest form" to the Fortran front end, marks non-rectangular loops for processing by the middle end, and implements missing checks in the gimplifier for additional prohibitions on non-rectangular loops. Note that the OMP spec also prohibits non-rectangular loops with the TILE construct; that construct hasn't been implemented yet, so that error will need to be filled in later. gcc/fortran/ * gfortran.h (struct gfc_omp_clauses): Add non_rectangular bit. * openmp.cc (is_outer_iteration_variable): New function. (expr_is_invariant): New function. (bound_expr_is_canonical): New function. (resolve_omp_do): Replace existing non-rectangularity error with check for canonical form and setting non_rectangular bit. * trans-openmp.cc (gfc_trans_omp_do): Transfer non_rectangular flag to generated tree structure. gcc/ * gimplify.cc (gimplify_omp_for): Update messages for SCHEDULED and ORDERED clause conflict errors. Add check for GRAINSIZE and NUM_TASKS on TASKLOOP. gcc/testsuite/ * c-c++-common/gomp/loop-6.c (f3): New function to test TASKLOOP diagnostics. * gfortran.dg/gomp/collapse1.f90: Update expected messages. * gfortran.dg/gomp/pr85313.f90: Remove dg-error on non-rectangular loops that are now accepted. * gfortran.dg/gomp/non-rectangular-loop.f90: New file. * gfortran.dg/gomp/canonical-loop-1.f90: New file. * gfortran.dg/gomp/canonical-loop-2.f90: New file.
2022-03-18Fortran/OpenMP: Improve associate-name diagnostic [PR103039]Tobias Burnus1-4/+8
gcc/fortran/ChangeLog: PR fortran/103039 * openmp.cc (resolve_omp_clauses): Improve associate-name diagnostic for select type/rank. gcc/testsuite/ChangeLog: PR fortran/103039 * gfortran.dg/gomp/associate1.f90: Update dg-error. * gfortran.dg/gomp/associate2.f90: New test.
2022-03-03openmp, fortran: Check that the type of an event handle in a detach clause ↵Kwok Cheung Yeung1-11/+23
is suitable [PR104131] This rejects variables that are array types, array elements or derived type members when used as the event handle inside a detach clause (in accordance with the OpenMP specification). This would previously lead to an ICE. 2022-03-03 Kwok Cheung Yeung <kcy@codesourcery.com> gcc/fortran/ PR fortran/104131 * openmp.cc (gfc_match_omp_detach): Move check for type of event handle to... (resolve_omp_clauses) ...here. Also check that the event handle is not an array, or an array access or structure element access. gcc/testsuite/ PR fortran/104131 * gfortran.dg/gomp/pr104131.f90: New. * gfortran.dg/gomp/task-detach-1.f90: Update expected error message.
2022-02-10Fortran/OpenMP: Avoid ICE for invalid char array in omp atomic [PR104329]Tobias Burnus1-3/+8
PR fortran/104329 gcc/fortran/ChangeLog: * openmp.cc (resolve_omp_atomic): Defer extra-code assert after other diagnostics. gcc/testsuite/ChangeLog: * gfortran.dg/gomp/atomic-28.f90: New test.
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