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2022-10-12libgomp: Fix up OpenMP 5.2 feature bulletJakub Jelinek1-1/+1
The previous bullet correctly mentions 5.2 added for Fortran allocators directive which is a replacement of allocate directive associated with ALLOCATE statement to differentiate it at parse time from allocate directive as declarative one not associated with ALLOCATE statement, but the deprecation bullet talks about non-existing allocator directive. 2022-10-12 Jakub Jelinek <jakub@redhat.com> * libgomp.texi (OpenMP 5.2): Fix up allocator -> allocate directive in deprecation bullet.
2022-10-12libgomp: Add omp_in_explicit_task supportJakub Jelinek10-2/+202
This is pretty straightforward, if gomp_thread ()->task is NULL, it can't be explicit task, otherwise if gomp_thread ()->task->kind == GOMP_TASK_IMPLICIT, it is an implicit task, otherwise explicit task. 2022-10-12 Jakub Jelinek <jakub@redhat.com> * omp.h.in (omp_in_explicit_task): Declare. * omp_lib.h.in (omp_in_explicit_task): Likewise. * omp_lib.f90.in (omp_in_explicit_task): New interface. * libgomp.map (OMP_5.2): New symbol version, export omp_in_explicit_task and omp_in_explicit_task_. * task.c (omp_in_explicit_task): New function. * fortran.c (omp_in_explicit_task): Add ialias_redirect. (omp_in_explicit_task_): New function. * libgomp.texi (OpenMP 5.2): Mark omp_in_explicit_task as implemented. * testsuite/libgomp.c-c++-common/task-in-explicit-1.c: New test. * testsuite/libgomp.c-c++-common/task-in-explicit-2.c: New test. * testsuite/libgomp.c-c++-common/task-in-explicit-3.c: New test.
2022-10-12libgomp: Fix up creation of artificial teamsJakub Jelinek6-6/+117
When not in explicit parallel/target/teams construct, we in some cases create an artificial parallel with a single thread (either to handle target nowait or for task reduction purposes). In those cases, it handled again artificially created implicit task (created by gomp_new_icv for cases where we needed to write to some ICVs), but as the testcases show, didn't take into account possibility of this being done from explicit task(s). The code would destroy/free the previous task and replace it with the new implicit task. If task is an explicit task (when teams is NULL, all explicit tasks behave like if (0)), it is a pointer to a local stack variable, so freeing it doesn't work, and additionally we shouldn't lose the explicit tasks - the new implicit task should instead replace the ancestor task which is the first implicit one. 2022-10-12 Jakub Jelinek <jakub@redhat.com> * task.c (gomp_create_artificial_team): Fix up handling of invocations from within explicit task. * target.c (GOMP_target_ext): Likewise. * testsuite/libgomp.c/task-7.c: New test. * testsuite/libgomp.c/task-8.c: New test. * testsuite/libgomp.c-c++-common/task-reduction-17.c: New test. * testsuite/libgomp.c-c++-common/task-reduction-18.c: New test.
2022-10-12regenerate configure filesMartin Liska1-2/+2
Needed after a recent change. gcc/ChangeLog: * configure: Regenerate. libatomic/ChangeLog: * configure: Regenerate. libbacktrace/ChangeLog: * configure: Regenerate. libcc1/ChangeLog: * configure: Regenerate. libffi/ChangeLog: * configure: Regenerate. libgfortran/ChangeLog: * configure: Regenerate. libgomp/ChangeLog: * configure: Regenerate. libitm/ChangeLog: * configure: Regenerate. libobjc/ChangeLog: * configure: Regenerate. liboffloadmic/ChangeLog: * configure: Regenerate. * plugin/configure: Regenerate. libphobos/ChangeLog: * configure: Regenerate. libquadmath/ChangeLog: * configure: Regenerate. libsanitizer/ChangeLog: * configure: Regenerate. libssp/ChangeLog: * configure: Regenerate. libstdc++-v3/ChangeLog: * configure: Regenerate. libvtv/ChangeLog: * configure: Regenerate. lto-plugin/ChangeLog: * configure: Regenerate. zlib/ChangeLog: * configure: Regenerate.
2022-10-12Daily bump.GCC Administrator1-0/+5
2022-10-11Generic configury support for shared libs on VxWorksOlivier Hainque1-0/+43
This change adds the configury bits to activate the build of shared libs on VxWorks ports configured with --enable-shared, for libraries variants where this is generally supported (rtp, code model !large - currently not compatible with -fPIC). Set lt_cv_deplibs_check_method in libtool.m4, so the build of libraries know how to establish dependencies. This is useful in configurations such as aarch64 where proper support of LSE relies on accurate dependency information between libstdc++ and libgcc_s to begin with. Regenerate configure scripts to reflect libtool.m4 change. 2022-10-09 Olivier Hainque <hainque@adacore.com> * libtool.m4 (*vxworks*): When enable_shared, set dynamic_linker and friends for rtp !large. Assume the linker has the required abilities and set lt_cv_deplibs_check_method. gcc/ * config.gcc (*vxworks*): Add t-slibgcc fragment if enable_shared. libgcc/ * config.host (*vxworks*): When enable_shared, add libgcc and crtstuff "shared" fragments for rtp except large code model. (aarch64*-wrs-vxworks7*): Remove t-slibgcc-libgcc from the list of fragments. 2022-10-09 Olivier Hainque <hainque@adacore.com> gcc/ * configure: Regenerate. libatomic/ * configure: Regenerate. libbacktrace/ * configure: Regenerate. libcc1/ * configure: Regenerate. libffi/ * configure: Regenerate. libgfortran/ * configure: Regenerate. libgomp/ * configure: Regenerate. libitm/ * configure: Regenerate. libobjc/ * configure: Regenerate. liboffloadmic/ * configure: Regenerate. liboffloadmic/ * plugin/configure: Regenerate. libphobos/ * configure: Regenerate. libquadmath/ * configure: Regenerate. libsanitizer/ * configure: Regenerate. libssp/ * configure: Regenerate. libstdc++-v3/ * configure: Regenerate. libvtv/ * configure: Regenerate. lto-plugin/ * configure: Regenerate. zlib/ * configure: Regenerate.
2022-10-06Daily bump.GCC Administrator1-0/+4
2022-10-05Fortran: Add OpenMP's assume(s) directivesTobias Burnus1-1/+1
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.
2022-10-05Daily bump.GCC Administrator1-0/+5
2022-10-04openmp: Add begin declare target supportJakub Jelinek1-1/+1
The following patch adds support for the begin declare target construct, which is another spelling for declare target construct without clauses (where it needs paired end declare target), but unlike that one accepts clauses. This is an OpenMP 5.1 feature, implemented with 5.2 clarification because in 5.1 we had a restriction in the declare target chapter shared by declare target and begin declare target that if there are any clauses specified at least one of them needs to be to or link. But that was of course meant just for declare target and not begin declare target, because begin declare target doesn't even allow to/link/enter clauses. In addition to that, the patch also makes device_type clause duplication an error (as stated in 5.1) and similarly makes declare target with just device_type clause an error rather than warning. What this patch doesn't do is: 1) OpenMP 5.1 also added an indirect clause, we don't support that neither on declare target nor begin declare target and I couldn't find it in our features pages (neither libgomp.texi nor web) 2) I think device_type(nohost)/device_type(host) support can't work for variables (in 5.0 it only talked about procedures so this could be also thought as 5.1 feature that we should just add to the list and implement) 3) I don't see any use of the "omp declare target nohost" attribute, so I'm not sure if device_type(nohost) works at all 2022-10-04 Jakub Jelinek <jakub@redhat.com> gcc/c-family/ * c-omp.cc (c_omp_directives): Uncomment begin declare target entry. gcc/c/ * c-lang.h (struct c_omp_declare_target_attr): New type. (current_omp_declare_target_attribute): Change type from int to vec<c_omp_declare_target_attr, va_gc> *. * c-parser.cc (c_parser_translation_unit): Adjust for that change. If last pushed directive was begin declare target, use different wording and simplify format strings for easier translations. (c_parser_omp_clause_device_type): Uncomment check_no_duplicate_clause call. (c_parser_omp_declare_target): Adjust for the current_omp_declare_target_attribute type change, push { -1 }. Use error_at rather than warning_at for declare target with only device_type clauses. (OMP_BEGIN_DECLARE_TARGET_CLAUSE_MASK): Define. (c_parser_omp_begin): Add begin declare target support. (c_parser_omp_end): Adjust for the current_omp_declare_target_attribute type change, adjust diagnostics wording and simplify format strings for easier translations. * c-decl.cc (current_omp_declare_target_attribute): Change type from int to vec<c_omp_declare_target_attr, va_gc> *. (c_decl_attributes): Adjust for the current_omp_declare_target_attribute type change. If device_type was present on begin declare target, add "omp declare target host" and/or "omp declare target nohost" attributes. gcc/cp/ * cp-tree.h (struct omp_declare_target_attr): Rename to ... (cp_omp_declare_target_attr): ... this. Add device_type member. (omp_begin_assumes_data): Rename to ... (cp_omp_begin_assumes_data): ... this. (struct saved_scope): Change types of omp_declare_target_attribute and omp_begin_assumes. * parser.cc (cp_parser_omp_clause_device_type): Uncomment check_no_duplicate_clause call. (cp_parser_omp_all_clauses): Fix up pasto, c_name for OMP_CLAUSE_LINK should be "link" rather than "to". (cp_parser_omp_declare_target): Adjust for omp_declare_target_attr to cp_omp_declare_target_attr changes, push -1 as device_type. Use error_at rather than warning_at for declare target with only device_type clauses. (OMP_BEGIN_DECLARE_TARGET_CLAUSE_MASK): Define. (cp_parser_omp_begin): Add begin declare target support. Adjust for omp_begin_assumes_data to cp_omp_begin_assumes_data change. (cp_parser_omp_end): Adjust for the omp_declare_target_attr to cp_omp_declare_target_attr and omp_begin_assumes_data to cp_omp_begin_assumes_data type changes, adjust diagnostics wording and simplify format strings for easier translations. * semantics.cc (finish_translation_unit): Likewise. * decl2.cc (cplus_decl_attributes): If device_type was present on begin declare target, add "omp declare target host" and/or "omp declare target nohost" attributes. gcc/testsuite/ * c-c++-common/gomp/declare-target-4.c: Move tests that are now rejected into declare-target-7.c. * c-c++-common/gomp/declare-target-6.c: Adjust expected diagnostics. * c-c++-common/gomp/declare-target-7.c: New test. * c-c++-common/gomp/begin-declare-target-1.c: New test. * c-c++-common/gomp/begin-declare-target-2.c: New test. * c-c++-common/gomp/begin-declare-target-3.c: New test. * c-c++-common/gomp/begin-declare-target-4.c: New test. * g++.dg/gomp/attrs-9.C: Add begin declare target tests. * g++.dg/gomp/attrs-18.C: New test. libgomp/ * libgomp.texi (Support begin/end declare target syntax in C/C++): Mark as implemented.
2022-10-01Daily bump.GCC Administrator1-0/+5
2022-09-30Fortran: Update use_device_ptr for OpenMP 5.1 [PR105318]Tobias Burnus1-0/+159
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.
2022-09-29Daily bump.GCC Administrator1-0/+5
2022-09-28libgomp.texi: Status 'P' for 'assume', remove duplicated lineTobias Burnus1-2/+1
libgomp/ * libgomp.texi (OpenMP 5.1): Mark 'assume' as implemented for C/C++. Remove duplicated 'begin declare target' entry.
2022-09-25Daily bump.GCC Administrator1-0/+5
2022-09-24openmp, c: Tighten up c_tree_equal [PR106981]Jakub Jelinek1-0/+19
This patch changes c_tree_equal to work more like cp_tree_equal, be more strict in what it accepts. The ICE on the first testcase was due to INTEGER_CST wi::wide (t1) == wi::wide (t2) comparison which ICEs if the two constants have different precision, but as the second testcase shows, being too lenient in it can also lead to miscompilation of valid OpenMP programs where we think certain expression is the same even when it isn't and can be guaranteed at runtime to represent different memory location. So, the patch looks through only NON_LVALUE_EXPRs and for constants as well as casts requires that the types match before actually comparing the constant values or recursing on the cast operands. 2022-09-24 Jakub Jelinek <jakub@redhat.com> PR c/106981 gcc/c/ * c-typeck.cc (c_tree_equal): Only strip NON_LVALUE_EXPRs at the start. For CONSTANT_CLASS_P or CASE_CONVERT: return false if t1 and t2 have different types. gcc/testsuite/ * c-c++-common/gomp/pr106981.c: New test. libgomp/ * testsuite/libgomp.c-c++-common/pr106981.c: New test.
2022-09-15Daily bump.GCC Administrator1-0/+8
2022-09-14OpenMP/OpenACC struct sibling list gimplification extension and reworkJulian Brown4-0/+483
This patch refactors struct sibling-list processing in gimplify.cc, and adjusts some related mapping-clause processing in the Fortran FE and omp-low.cc accordingly. 2022-09-13 Julian Brown <julian@codesourcery.com> gcc/fortran/ * trans-openmp.cc (gfc_trans_omp_clauses): Don't create GOMP_MAP_TO_PSET mappings for class metadata, nor GOMP_MAP_POINTER mappings for POINTER_TYPE_P decls. gcc/ * gimplify.cc (gimplify_omp_var_data): Remove GOVD_MAP_HAS_ATTACHMENTS. (GOMP_FIRSTPRIVATE_IMPLICIT): Renumber. (insert_struct_comp_map): Refactor function into... (build_omp_struct_comp_nodes): This new function. Remove list handling and improve self-documentation. (extract_base_bit_offset): Remove BASE_REF, OFFSETP parameters. Move code to strip outer parts of address out of function, but strip no-op conversions. (omp_mapping_group): Add DELETED field for use during reindexing. (omp_strip_components_and_deref, omp_strip_indirections): New functions. (omp_group_last, omp_group_base): Add GOMP_MAP_STRUCT handling. (omp_gather_mapping_groups): Initialise DELETED field for new groups. (omp_index_mapping_groups): Notice DELETED groups when (re)indexing. (omp_siblist_insert_node_after, omp_siblist_move_node_after, omp_siblist_move_nodes_after, omp_siblist_move_concat_nodes_after): New helper functions. (omp_accumulate_sibling_list): New function to build up GOMP_MAP_STRUCT node groups for sibling lists. Outlined from gimplify_scan_omp_clauses. (omp_build_struct_sibling_lists): New function. (gimplify_scan_omp_clauses): Remove struct_map_to_clause, struct_seen_clause, struct_deref_set. Call omp_build_struct_sibling_lists as pre-pass instead of handling sibling lists in the function's main processing loop. (gimplify_adjust_omp_clauses_1): Remove GOVD_MAP_HAS_ATTACHMENTS handling, unused now. * omp-low.cc (scan_sharing_clauses): Handle pointer-type indirect struct references, and references to pointers to structs also. gcc/testsuite/ * g++.dg/goacc/member-array-acc.C: New test. * g++.dg/gomp/member-array-omp.C: New test. * g++.dg/gomp/target-3.C: Update expected output. * g++.dg/gomp/target-lambda-1.C: Likewise. * g++.dg/gomp/target-this-2.C: Likewise. * c-c++-common/goacc/deep-copy-arrayofstruct.c: Move test from here. * c-c++-common/gomp/target-50.c: New test. libgomp/ * testsuite/libgomp.oacc-c-c++-common/deep-copy-15.c: New test. * testsuite/libgomp.oacc-c-c++-common/deep-copy-16.c: New test. * testsuite/libgomp.oacc-c++/deep-copy-17.C: New test. * testsuite/libgomp.oacc-c-c++-common/deep-copy-arrayofstruct.c: Move test to here, make "run" test.
2022-09-14Daily bump.GCC Administrator1-0/+11
2022-09-13libgomp: Appease some static analyzers [PR106906]Jakub Jelinek1-3/+3
While icv_addr[1] = false; assignments where icv_addr has void * element type is correct and matches how it is used (in those cases the void * pointer is then cast to bool and used that way), there is no reason not to add explicit (void *) casts there which are there already for (void *) true. And, there is in fact even no point in actually doing those stores at all because we set that pointer to NULL a few lines earlier. So, this patch adds the explicit casts and then comments those out to show intent. 2022-09-13 Jakub Jelinek <jakub@redhat.com> PR libgomp/106906 * env.c (get_icv_member_addr): Cast false to void * before assigning it to icv_addr[1], and comment the whole assignment out.
2022-09-13libgomp.texi: move item from gcn to nvptxTobias Burnus1-3/+3
I misplaced one remark into 'gcn' instead of 'nvptx' in commit r13-2625-g6b43f556f392a7165582aca36a19fe7389d995b2 libgomp/ChangeLog: * libgomp.texi (gcn): Move misplaced -march=sm_30 remark to ... (nvptx): ... here.
2022-09-13Daily bump.GCC Administrator1-0/+25
2022-09-12nvptx/mkoffload.cc: Warn instead of error when reverse offload is not possibleTobias Burnus7-0/+24
Reverse offload requests at least -misa=sm_35; with this patch, a warning instead of an error is shown, still permitting reverse offload for all other configured device types. This is achieved by not calling GOMP_offload_register_ver (and stopping generating pointless 'static const char' variables, once known.) The tool_name as progname changes adds "nvptx " and "gcn " to the "mkoffload: warning/error:" diagnostic. gcc/ChangeLog: * config/nvptx/mkoffload.cc (process): Replace a fatal_error by a warning + not enabling offloading if -misa=sm_30 prevents reverse offload. (main): Use tool_name as progname for diagnostic. * config/gcn/mkoffload.cc (main): Likewise. libgomp/ChangeLog: * libgomp.texi (Offload-Target Specifics: nvptx): Document that reverse offload requires >= -march=sm_35. * testsuite/libgomp.c-c++-common/requires-4.c: Build for nvptx with -misa=sm_35. * testsuite/libgomp.c-c++-common/requires-5.c: Likewise. * testsuite/libgomp.c-c++-common/requires-6.c: Likewise. * testsuite/libgomp.c-c++-common/reverse-offload-1.c: Likewise. * testsuite/libgomp.fortran/reverse-offload-1.f90: Likewise. * testsuite/libgomp.c/reverse-offload-sm30.c: New test.
2022-09-12libgomp.texi: Impl. status fix/additionTobias Burnus1-4/+8
libgomp/ChangeLog: * libgomp.texi (OpenMP 5.1 Impl. Status): Add two new minor items. (OpenMP 5.2 Impl. Status): Improve omp/omx/ompx wording.
2022-09-12libgomp: Fix up icv-6.c [PR106894]Jakub Jelinek1-9/+17
The thing is, make check or make check RUNTESTFLAGS="c.exp='icv-6.c' c++.exp='icv-6.c'" in libgomp obj dir work fine, but make -j32 -k check RUNTESTFLAGS="c.exp='icv-6.c' c++.exp='icv-6.c'" fails. The thing is that the testcase as written relies on OMP_NUM_THREADS not being set in environment (as it takes priority over OMP_NUM_THREADS_ALL for the host). So, if either a user has OMP_NUM_THREADS=42 in the environment by himself, or when doing make check with -jN, we trigger: if test $$num_cpus -gt 8 && test -z "$$OMP_NUM_THREADS"; then \ OMP_NUM_THREADS=8; export OMP_NUM_THREADS; \ echo @@@ libgomp OMP_NUM_THREADS adjusted to 8 because of parallel make check and too many CPUs; \ fi; \ in libgomp/testsuite/Makefile.am and so the test fails. 2022-09-12 Jakub Jelinek <jakub@redhat.com> PR libgomp/106894 * testsuite/libgomp.c-c++-common/icv-6.c: Include string.h. (main): Avoid tests for which corresponding non-_ALL suffixed variable is in the environment, or for OMP_NUM_TEAMS on the device OMP_NUM_TEAMS_DEV_?.
2022-09-11Daily bump.GCC Administrator1-0/+4
2022-09-10libgomp: Use libiberty environ.h to declare the environment pointer.Iain Sandoe1-1/+1
This allows for target-specific mechanisms for finding the pointer. Signed-off-by: Iain Sandoe <iain@sandoe.co.uk> libgomp/ChangeLog: * env.c (initialize_env): Include libiberty environ.h.
2022-09-10Daily bump.GCC Administrator1-0/+28
2022-09-09nvptx: libgomp+mkoffload.cc: Prepare for reverse offload fn lookupTobias Burnus1-1/+18
Add support to nvptx for reverse lookup of function name to prepare for 'omp target device(ancestor:1)'. gcc/ChangeLog: * config/nvptx/mkoffload.cc (struct id_map): Add 'dim' member. (record_id): Store func name without quotes, store dim separately. (process): For GOMP_REQUIRES_REVERSE_OFFLOAD, check that -march is at least sm_35, create '$offload_func_table' global array and init with reverse-offload function addresses. * config/nvptx/nvptx.cc (write_fn_proto_1, write_fn_proto): New force_public attribute to force .visible. (nvptx_declare_function_name): For "omp target device_ancestor_nohost" attribut, force .visible/TREE_PUBLIC. libgomp/ChangeLog: * plugin/plugin-nvptx.c (GOMP_OFFLOAD_load_image): Read offload function address table '$offload_func_table' if rev_fn_table is not NULL.
2022-09-09GCN: libgomp+mkoffload.cc: Prepare for reverse offload fn lookupTobias Burnus1-1/+25
Add support to GCN for reverse lookup of function name to prepare for 'omp target device(ancestor:1)'. gcc/ChangeLog: * config/gcn/mkoffload.cc (process_asm): Create .offload_func_table, similar to pre-existing .offload_var_table. libgomp/ChangeLog: * plugin/plugin-gcn.c (GOMP_OFFLOAD_load_image): Read .offload_func_table to populate rev_fn_table when requested.
2022-09-09libgomp: Prepare for reverse offload fn lookupTobias Burnus5-7/+14
Prepare for reverse-offloading function-pointer lookup by passing a rev_fn_table argument to GOMP_OFFLOAD_load_image. The argument will be NULL, unless GOMP_REQUIRES_REVERSE_OFFLOAD is requested and devices not supported it, are filtered out. (Up to and including this commit, no non-host device claims such support and the caller currently always passes NULL.) libgomp/ChangeLog: * libgomp-plugin.h (GOMP_OFFLOAD_load_image): Add 'uint64_t **rev_fn_table' argument. * oacc-host.c (host_load_image): Likewise. * plugin/plugin-gcn.c (GOMP_OFFLOAD_load_image): Likewise; currently unused. * plugin/plugin-nvptx.c (GOMP_OFFLOAD_load_image): Likewise. * target.c (gomp_load_image_to_device): Update call but pass NULL for now. liboffloadmic/ChangeLog: * plugin/libgomp-plugin-intelmic.cpp (GOMP_OFFLOAD_load_image): Add (unused) uint64_t **rev_fn_table argument.
2022-09-09libgomp: Fix up OMP_PROC_BIND handling [PR106894]Jakub Jelinek1-5/+3
While the first param is char (gomp_global_icv.bind_var), the second param is char * (gomp_bind_var_list), so we shouldn't access it through *(char *). 2022-09-09 Jakub Jelinek <jakub@redhat.com> PR libgomp/106894 * env.c (initialize_env) <case PARSE_BIND>: Use char ** instead of char * for dest[1] initialization from params[1]. Formatting fixes.
2022-09-09Daily bump.GCC Administrator1-0/+125
2022-09-08OpenMP: Document ompx warnings + add Fortran omx warning [PR106670]Tobias Burnus1-1/+7
omp/ompx sentinels are for vendor extensions; as they might be required for the correctness of the program, a warning should be printable. This patch documents in the OpenMP 5.2 table the existing warnings, including the new warning for for fixed source form Fortran. PR fortran/106670 gcc/fortran/ChangeLog: * scanner.cc (skip_fixed_omp_sentinel): Add -Wsurprising warning for 'omx' sentinels with -fopenmp. * invoke.texi (-Wsurprising): Document additional warning case. libgomp/ChangeLog: * libgomp.texi (OpenMP 5.2): Add comment to ompx/omx entry. gcc/testsuite/ChangeLog: * c-c++-common/gomp/ompx-1.c: New test. * c-c++-common/gomp/ompx-2.c: New test. * g++.dg/gomp/ompx-attrs-1.C: New test. * gfortran.dg/gomp/ompx-1.f90: New test. * gfortran.dg/gomp/omx-1.f: New test. * gfortran.dg/gomp/omx-2.f: New test.
2022-09-08libgomp.texi: Document libmemkind + nvptx/gcn specificsTobias Burnus1-6/+125
libgomp/ChangeLog: * libgomp.texi (OpenMP-Implementation Specifics): New; add libmemkind section; move OpenMP Context Selectors from ... (Offload-Target Specifics): ... here; add 'AMD Radeo (GCN)' and 'nvptx' sections.
2022-09-08OpenMP, libgomp: Environment variable syntax extensionMarcel Vollweiler17-382/+1582
This patch considers the environment variable syntax extension for device-specific variants of environment variables from OpenMP 5.1 (see OpenMP 5.1 specification, p. 75 and p. 639). An environment variable (e.g. OMP_NUM_TEAMS) can have different suffixes: _DEV (e.g. OMP_NUM_TEAMS_DEV): affects all devices but not the host. _DEV_<device> (e.g. OMP_NUM_TEAMS_DEV_42): affects only device with number <device>. no suffix (e.g. OMP_NUM_TEAMS): affects only the host. In future OpenMP versions also suffix _ALL will be introduced (see discussion https://github.com/OpenMP/spec/issues/3179). This is also considered in this patch: _ALL (e.g. OMP_NUM_TEAMS_ALL): affects all devices and the host. The precedence is as follows (descending). For the host: 1. no suffix 2. _ALL For devices: 1. _DEV_<device> 2. _DEV 3. _ALL That means, _DEV_<device> is used whenever available. Otherwise _DEV is used if available, and at last _ALL. If there is no value for any of the variable variants, default values are used as already implemented before. This patch concerns parsing (a), storing (b), output (c) and transmission to the device (d): (a) The actual number of devices and the numbering are not known when parsing the environment variables. Thus all environment variables are iterated and searched for device-specific ones. (b) Only configured device-specific variables are stored. Thus, a linked list is used. (c) The output is done in omp_display_env (see specification p. 468f). Global ICVs are tagged with [all], see https://github.com/OpenMP/spec/issues/3179. ICVs which are not global but aren't handled device-specific yet are tagged with [host]. omp_display_env outputs the initial values of the ICVs. That is why a dedicated data structure is introduced for the inital values only (gomp_initial_icv_list). (d) Device-specific ICVs are transmitted to the device via GOMP_ADDITIONAL_ICVS. libgomp/ChangeLog: * config/gcn/icv-device.c (omp_get_default_device): Return device- specific ICV. (omp_get_max_teams): Added for GCN devices. (omp_set_num_teams): Likewise. (ialias): Likewise. * config/nvptx/icv-device.c (omp_get_default_device): Return device- specific ICV. (omp_get_max_teams): Added for NVPTX devices. (omp_set_num_teams): Likewise. (ialias): Likewise. * env.c (struct gomp_icv_list): New struct to store entries of initial ICV values. (struct gomp_offload_icv_list): New struct to store entries of device- specific ICV values that are copied to the device and back. (struct gomp_default_icv_values): New struct to store default values of ICVs according to the OpenMP standard. (parse_schedule): Generalized for different variants of OMP_SCHEDULE. (print_env_var_error): Function that prints an error for invalid values for ICVs. (parse_unsigned_long_1): Removed getenv. Generalized. (parse_unsigned_long): Likewise. (parse_int_1): Likewise. (parse_int): Likewise. (parse_int_secure): Likewise. (parse_unsigned_long_list): Likewise. (parse_target_offload): Likewise. (parse_bind_var): Likewise. (parse_stacksize): Likewise. (parse_boolean): Likewise. (parse_wait_policy): Likewise. (parse_allocator): Likewise. (omp_display_env): Extended to output different variants of environment variables. (print_schedule): New helper function for omp_display_env which prints the values of run_sched_var. (print_proc_bind): New helper function for omp_display_env which prints the values of proc_bind_var. (enum gomp_parse_type): Collection of types used for parsing environment variables. (ENTRY): Preprocess string lengths of environment variables. (OMP_VAR_CNT): Preprocess table size. (OMP_HOST_VAR_CNT): Likewise. (INT_MAX_STR_LEN): Constant for the maximal number of digits of a device number. (gomp_get_icv_flag): Returns if a flag for a particular ICV is set. (gomp_set_icv_flag): Sets a flag for a particular ICV. (print_device_specific_icvs): New helper function for omp_display_env to print device specific ICV values. (get_device_num): New helper function for parse_device_specific. Extracts the device number from an environment variable name. (get_icv_member_addr): Gets the memory address for a particular member of an ICV struct. (gomp_get_initial_icv_item): Get a list item of gomp_initial_icv_list. (initialize_icvs): New function to initialize a gomp_initial_icvs struct. (add_initial_icv_to_list): Adds an ICV struct to gomp_initial_icv_list. (startswith): Checks if a string starts with a given prefix. (initialize_env): Extended to parse the new syntax of environment variables. * icv-device.c (omp_get_max_teams): Added. (ialias): Likewise. (omp_set_num_teams): Likewise. * icv.c (omp_set_num_teams): Moved to icv-device.c. (omp_get_max_teams): Likewise. (ialias): Likewise. * libgomp-plugin.h (GOMP_DEVICE_NUM_VAR): Removed. (GOMP_ADDITIONAL_ICVS): New target-side struct that holds the designated ICVs of the target device. * libgomp.h (enum gomp_icvs): Collection of ICVs. (enum gomp_device_num): Definition of device numbers for _ALL, _DEV, and no suffix. (enum gomp_env_suffix): Collection of possible suffixes of environment variables. (struct gomp_initial_icvs): Contains all ICVs for which we need to store initial values. (struct gomp_default_icv):New struct to hold ICVs for which we need to store initial values. (struct gomp_icv_list): Definition of a linked list that is used for storing ICVs for the devices and also for _DEV, _ALL, and without suffix. (struct gomp_offload_icvs): New struct to hold ICVs that are copied to a device. (struct gomp_offload_icv_list): Definition of a linked list that holds device-specific ICVs that are copied to devices. (gomp_get_initial_icv_item): Get a list item of gomp_initial_icv_list. (gomp_get_icv_flag): Returns if a flag for a particular ICV is set. * libgomp.texi: Updated. * plugin/plugin-gcn.c (GOMP_OFFLOAD_load_image): Extended to read further ICVs from the offload image. * plugin/plugin-nvptx.c (GOMP_OFFLOAD_load_image): Likewise. * target.c (gomp_get_offload_icv_item): Get a list item of gomp_offload_icv_list. (get_gomp_offload_icvs): New. Returns the ICV values depending on the device num and the variable hierarchy. (gomp_load_image_to_device): Extended to copy further ICVs to a device. * testsuite/libgomp.c-c++-common/icv-5.c: New test. * testsuite/libgomp.c-c++-common/icv-6.c: New test. * testsuite/libgomp.c-c++-common/icv-7.c: New test. * testsuite/libgomp.c-c++-common/icv-8.c: New test. * testsuite/libgomp.c-c++-common/omp-display-env-1.c: New test. * testsuite/libgomp.c-c++-common/omp-display-env-2.c: New test.
2022-09-08openmp: Implement doacross(sink: omp_cur_iteration - 1)Jakub Jelinek5-2/+889
This patch implements doacross(sink: omp_cur_iteration - 1) that the previous patchset emitted a sorry on during omp expansion. It can be implemented with existing library functions. To recap, depend(source)/doacross(source:)/doacross(source:omp_cur_iteration) is implemented calling GOMP_doacross_post or GOMP_doacross_ull_post, called with an array of long or unsigned long long elements, one for all collapsed loops together and one for each further ordered loop if any. We initialize that array in each thread when grabbing further set of iterations and update it at the end of loops, so that it represents the current iteration (as 0 based counters). When the worksharing loop is created, we tell the library through another similar array the counts (the loop needs to be rectangular) in each dimension, first element is count of all logical iterations in the collapsed loops. depend(sink:v1 op N1, v2 op N2, ...) is then implemented by conditionally calling GOMP_doacross_wait/GOMP_doacross_ull_wait. For N? of 0 there is no check, otherwise if it wants to wait in a particular dimension for a previous iteration, we check that the corresponding iterator isn't the first one (or first few), where the previous iterator in that dimension would be out of range, and similarly for checking of next iteration in a dimension that it isn't the last one (or last few) where it would be similarly out of bounds. Then the collapsed loop counters are folded into a single 0 based counter (first argument) and then other 0 based iterations counters on what iteration it should wait for. Now, doacross(sink: omp_cur_iteration - 1) is supposed to wait for the previous logical iteration in the combined iteration space of all ordered loops. For the very first iteration in that combined iteration space it does nothing, there is no previous iteration. And similarly it does nothing if there are more ordered loops than collapsed loop and it isn't the first logical iteration of the combined loops inside of the collapsed loops, because as implemented we know the previous iteration in that case is always executed by the same thread as the current one. In the implementation, we use the same value as is stored in the first element of the array for GOMP_doacross_post/GOMP_doacross_ull_post, if that value is 0, we do nothing. The rest is different based on if ordered argument is equal to collapse or not. If it is, then we otherwise call GOMP_doacross_wait/GOMP_doacross_ull_wait with a single argument, one less than that counter we compare against 0. If ordered argument is bigger than collapse, we add a per-thread boolean variable .first.N, which we set to true at the start of the outermost ordered loop inside of the collapsed set of loops and set to false at the end of the innermost ordered loop. If .first.N is false, we don't do anything (we know the previous iteration was handled by the current thread and by my reading of the spec we don't need to emit even a memory barrier in that case, because it is just synchronization with the same thread), otherwise we call GOMP_doacross_wait/GOMP_doacross_ull_wait with the first argument one less than the counter we compare against 0, and then one less than 2nd and following counts if iterations we pass to the workshare initialization. If say .counts.N passed to the workshare initialization is { 256, 13, 5, 2 } for collapse(3) ordered(6) loop, then GOMP_doacross_post/GOMP_doacross_ull_post is called with arguments equal to .ordereda.N[0] - 1, 12, 4, 1. 2022-09-08 Jakub Jelinek <jakub@redhat.com> gcc/ * omp-expand.cc (expand_omp_ordered_sink): Add CONT_BB argument. Add doacross(sink:omp_cur_iteration-1) support. (expand_omp_ordered_source_sink): Clear counts[fd->ordered + 1]. Adjust expand_omp_ordered_sink caller. (expand_omp_for_ordered_loops): If counts[fd->ordered + 1] is non-NULL, set that variable to true at the start of outermost non-collapsed loop and set it to false at the end of innermost ordered loop. (expand_omp_for_generic): If fd->ordered, allocate 1 + (fd->ordered - fd->collapse) further elements in counts array. Copy to counts + 2 + fd->ordered the counts of fd->collapse .. fd->ordered - 1 loop if any. gcc/testsuite/ * c-c++-common/gomp/doacross-7.c: New test. libgomp/ * libgomp.texi (OpenMP 5.2): Mention that omp_cur_iteration is now fully supported. * testsuite/libgomp.c/doacross-4.c: New test. * testsuite/libgomp.c/doacross-5.c: New test. * testsuite/libgomp.c/doacross-6.c: New test. * testsuite/libgomp.c/doacross-7.c: New test.
2022-09-06Daily bump.GCC Administrator1-0/+4
2022-09-05Fortran/openmp: Partial OpenMP 5.2 doacross and omp_cur_iteration supportTobias Burnus1-2/+3
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.
2022-08-27Daily bump.GCC Administrator1-0/+9
2022-08-26OpenMP: Support reverse offload (middle end part)Tobias Burnus5-1/+194
gcc/ChangeLog: * internal-fn.cc (expand_GOMP_TARGET_REV): New. * internal-fn.def (GOMP_TARGET_REV): New. * lto-cgraph.cc (lto_output_node, verify_node_partition): Mark 'omp target device_ancestor_host' as in_other_partition and don't error if absent. * omp-low.cc (create_omp_child_function): Mark as 'noclone'. * omp-expand.cc (expand_omp_target): For reverse offload, remove sorry, use device = GOMP_DEVICE_HOST_FALLBACK and create empty-body nohost function. * omp-offload.cc (execute_omp_device_lower): Handle IFN_GOMP_TARGET_REV. (pass_omp_target_link::execute): For ACCEL_COMPILER, don't nullify fn argument for reverse offload libgomp/ChangeLog: * libgomp.texi (OpenMP 5.0): Mark 'ancestor' as implemented but refer to 'requires'. * testsuite/libgomp.c-c++-common/reverse-offload-1-aux.c: New test. * testsuite/libgomp.c-c++-common/reverse-offload-1.c: New test. * testsuite/libgomp.fortran/reverse-offload-1-aux.f90: New test. * testsuite/libgomp.fortran/reverse-offload-1.f90: New test. gcc/testsuite/ChangeLog: * c-c++-common/gomp/reverse-offload-1.c: Remove dg-sorry. * c-c++-common/gomp/target-device-ancestor-4.c: Likewise. * gfortran.dg/gomp/target-device-ancestor-4.f90: Likewise. * gfortran.dg/gomp/target-device-ancestor-5.f90: Likewise. * c-c++-common/goacc/classify-kernels-parloops.c: Add 'noclone' to scan-tree-dump-times. * c-c++-common/goacc/classify-kernels-unparallelized-parloops.c: Likewise. * c-c++-common/goacc/classify-kernels-unparallelized.c: Likewise. * c-c++-common/goacc/classify-kernels.c: Likewise. * c-c++-common/goacc/classify-parallel.c: Likewise. * c-c++-common/goacc/classify-serial.c: Likewise. * c-c++-common/goacc/kernels-counter-vars-function-scope.c: Likewise. * c-c++-common/goacc/kernels-loop-2.c: Likewise. * c-c++-common/goacc/kernels-loop-3.c: Likewise. * c-c++-common/goacc/kernels-loop-data-2.c: Likewise. * c-c++-common/goacc/kernels-loop-data-enter-exit-2.c: Likewise. * c-c++-common/goacc/kernels-loop-data-enter-exit.c: Likewise. * c-c++-common/goacc/kernels-loop-data-update.c: Likewise. * c-c++-common/goacc/kernels-loop-data.c: Likewise. * c-c++-common/goacc/kernels-loop-g.c: Likewise. * c-c++-common/goacc/kernels-loop-mod-not-zero.c: Likewise. * c-c++-common/goacc/kernels-loop-n.c: Likewise. * c-c++-common/goacc/kernels-loop-nest.c: Likewise. * c-c++-common/goacc/kernels-loop.c: Likewise. * c-c++-common/goacc/kernels-one-counter-var.c: Likewise. * c-c++-common/goacc/kernels-parallel-loop-data-enter-exit.c: Likewise. * gfortran.dg/goacc/classify-kernels-parloops.f95: Likewise. * gfortran.dg/goacc/classify-kernels-unparallelized-parloops.f95: Likewise. * gfortran.dg/goacc/classify-kernels-unparallelized.f95: Likewise. * gfortran.dg/goacc/classify-kernels.f95: Likewise. * gfortran.dg/goacc/classify-parallel.f95: Likewise. * gfortran.dg/goacc/classify-serial.f95: Likewise. * gfortran.dg/goacc/kernels-loop-2.f95: Likewise. * gfortran.dg/goacc/kernels-loop-data-2.f95: Likewise. * gfortran.dg/goacc/kernels-loop-data-enter-exit-2.f95: Likewise. * gfortran.dg/goacc/kernels-loop-data-enter-exit.f95: Likewise. * gfortran.dg/goacc/kernels-loop-data-update.f95: Likewise. * gfortran.dg/goacc/kernels-loop-data.f95: Likewise. * gfortran.dg/goacc/kernels-loop-n.f95: Likewise. * gfortran.dg/goacc/kernels-loop.f95: Likewise. * gfortran.dg/goacc/kernels-parallel-loop-data-enter-exit.f95: Likewise.
2022-08-18Daily bump.GCC Administrator1-0/+10
2022-08-17OpenMP: Fix var replacement with 'simd' and linear-step vars [PR106548]Tobias Burnus1-0/+254
gcc/ChangeLog: PR middle-end/106548 * omp-low.cc (lower_rec_input_clauses): Use build_outer_var_ref for 'simd' linear-step values that are variable. libgomp/ChangeLog: PR middle-end/106548 * testsuite/libgomp.c/linear-2.c: New test.
2022-08-17libgomp/splay-tree.h: Fix splay_tree_prefix handlingTobias Burnus1-15/+15
When splay_tree_prefix is defined, the .h file defines splay_* macros to add the prefix. However, before those were only unset when additionally splay_tree_c was defined. Additionally, for consistency undefine splay_tree_c also when no splay_tree_prefix is defined - there is no interdependence either. libgomp/ChangeLog: * splay-tree.h: Fix splay_* macro unsetting if splay_tree_prefix is defined.
2022-07-30Daily bump.GCC Administrator1-0/+9
2022-07-29Add libgomp.c-c++-common/pr106449-2.cTobias Burnus1-0/+64
This run-time test test pointer-based iteration with collapse, similar to the '(parallel) simd' test for PR106449 but for 'for'. libgomp/ChangeLog: * testsuite/libgomp.c-c++-common/pr106449-2.c: New test.
2022-07-29openmp: Fix up handling of non-rectangular simd loops with pointer type ↵Jakub Jelinek1-0/+62
iterators [PR106449] There were 2 issues visible on this new testcase, one that we didn't have special POINTER_TYPE_P handling in a few spots of expand_omp_simd - for pointers we need to use POINTER_PLUS_EXPR and need to have the non-pointer part in sizetype, for non-rectangular loop on the other side we can rely on multiplication factor 1, pointers can't be multiplied, without those changes we'd ICE. The other issue was that we put n2 expression directly into a comparison in a condition and regimplified that, for the &a[512] case that and with gimplification being destructed that unfortunately meant modification of original fd->loops[?].n2. Fixed by unsharing the expression. This was causing a runtime failure on the testcase. 2022-07-29 Jakub Jelinek <jakub@redhat.com> PR middle-end/106449 * omp-expand.cc (expand_omp_simd): Fix up handling of pointer iterators in non-rectangular simd loops. Unshare fd->loops[i].n2 or n2 before regimplifying it inside of a condition. * testsuite/libgomp.c-c++-common/pr106449.c: New test.
2022-07-13Daily bump.GCC Administrator1-0/+10
2022-07-12libgomp: Add tailing \n to gomp_debugTobias Burnus1-1/+1
Contrary to gomp_{error,warning,fatal}, no tailing '\n' is added with gomp_debug; only affected was a 'requires'-related output. libgomp/ChangeLog: * target.c (gomp_target_init): Added tailing '\n' to gomp_debug.
2022-07-12XFAIL 'offloading_enabled' diagnostics issue in ↵Thomas Schwinge1-3/+4
'libgomp.oacc-c-c++-common/reduction-5.c' [PR101551] Fix-up for recent commit 06b2a2abe26554c6f9365676683d67368cbba206 "Enhance '_Pragma' diagnostics verification in OMP C/C++ test cases". Supposedly it's the same issue as in <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101551#c2>, where I'd noted that: | [...] with an offloading-enabled build of GCC we're losing | "note: in expansion of macro '[...]'" diagnostics. | (Effectively '-ftrack-macro-expansion=0'?) PR middle-end/101551 libgomp/ * testsuite/libgomp.oacc-c-c++-common/reduction-5.c: XFAIL 'offloading_enabled' diagnostics issue.
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