gcc/ChangeLog.omp

   1 2021-07-26  Thomas Schwinge  <thomas@codesourcery.com>
   2
   3         Backported from master:
   4         2021-07-12  Martin Liska  <mliska@suse.cz>
   5
   6         PR sanitizer/101425
   7         * gcc.c (check_offload_target_name): Call
   8           candidates_list_and_hint only if we have a candidate.
   9
  10         Backported from master:
  11         2021-06-30  Tobias Burnus  <tobias@codesourcery.com>
  12
  13         * common.opt (foffload): Remove help as Driver only.
  14         * gcc.c (display_help): Add -foffload.
  15
  16         Backported from master:
  17         2021-06-30  Tobias Burnus  <tobias@codesourcery.com>
  18
  19         * gcc.c (close_at_file, execute): Replace alloca by XALLOCAVEC.
  20         (check_offload_target_name): Fix splitting OFFLOAD_TARGETS into
  21         a candidate list; better inform no offload target is configured
  22         and fix hint extraction when passed target is not '\0' at [len].
  23         * common.opt (foffload): Add tailing '.'.
  24         (foffload-options): Likewise; fix flag name in the help string.
  25
  26 2021-07-20  Andrew Stubbs  <ams@codesourcery.com>
  27
  28         Backport from master:
  29         PR target/100208
  30         * config/gcn/gcn-hsa.h (DRIVER_SELF_SPECS): New.
  31         (ASM_SPEC): Set -mattr for xnack and sram-ecc.
  32         * config/gcn/gcn-opts.h (enum sram_ecc_type): New.
  33         * config/gcn/gcn-valu.md: Add a warning comment.
  34         * config/gcn/gcn.c (gcn_option_override): Add "sorry" for -mxnack.
  35         (output_file_start): Add xnack and sram-ecc state to ".amdgcn_target".
  36         * config/gcn/gcn.md: Add a warning comment.
  37         * config/gcn/gcn.opt: Add -mxnack and -msram-ecc.
  38         * config/gcn/mkoffload.c (EF_AMDGPU_MACH_AMDGCN_GFX908): Remove
  39         SRAM-ECC flag.
  40         (EF_AMDGPU_XNACK): New.
  41         (EF_AMDGPU_SRAM_ECC): New.
  42         (elf_flags): New.
  43         (copy_early_debug_info): Use elf_flags.
  44         (main): Handle -mxnack and -msram-ecc options.
  45         * doc/invoke.texi: Document -mxnack and -msram-ecc.
  46
  47 2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
  48
  49         Backported from master:
  50         2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
  51
  52         * gcc.c (check_offload_target_name): Cast len argument to
  53         %q.*s to 'int'; avoid -Wstringop-truncation warning.
  54
  55 2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
  56
  57         Backported from master:
  58         2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
  59
  60         PR other/67300
  61         * common.opt (-foffload=): Update description.
  62         (-foffload-options=): New.
  63         * doc/invoke.texi (C Language Options): Document
  64         -foffload and -foffload-options.
  65         * gcc.c (check_offload_target_name): New, split off from
  66         handle_foffload_option.
  67         (check_foffload_target_names): New.
  68         (handle_foffload_option): Handle -foffload=default.
  69         (driver_handle_option): Update for -foffload-options.
  70         * lto-opts.c (lto_write_options): Use -foffload-options
  71         instead of -foffload.
  72         * lto-wrapper.c (merge_and_complain, append_offload_options):
  73         Likewise.
  74         * opts.c (common_handle_option): Likewise.
  75
  76 2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
  77
  78         Backported from master:
  79         2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
  80
  81         * doc/invoke.texi (C Language Options): Sort options
  82         alphabetically in optlist and also the description itself.
  83         Remove leftover -fallow-single-precision from and add missing
  84         -fgnu-tm to the optlist.
  85
  86 2021-06-23  Tobias Burnus  <tobias@codesourcery.com>
  87
  88         Backported from master:
  89         2021-06-23  Jakub Jelinek  <jakub@redhat.com>
  90
  91         PR middle-end/101167
  92         * omp-low.c (lower_omp_regimplify_p): Regimplify also PARM_DECLs
  93         and RESULT_DECLs that have DECL_HAS_VALUE_EXPR_P set.
  94
  95 2021-06-22  Marcel Vollweiler  <marcel@codesourcery.com>
  96
  97         gcc/configure.ac: fix register issue for global_load assembler functions
  98
  99         * config.in: Regenerate.
 100         * config/gcn/gcn.c (print_operand_address): Fix for global_load
 101         assembler functions.
 102         * configure: Regenerate.
 103         * configure.ac: Fix for global_load assembler functions.
 104
 105 2021-06-15  Tobias Burnus  <tobias@codesourcery.com>
 106
 107         Backported from master:
 108         2021-06-15  Tobias Burnus  <tobias@codesourcery.com>
 109
 110         PR fortran/92568
 111         * gimplify.c (enum gimplify_defaultmap_kind): Add GDMK_SCALAR_TARGET.
 112         (struct gimplify_omp_ctx): Extend defaultmap array by one.
 113         (new_omp_context): Init defaultmap[GDMK_SCALAR_TARGET].
 114         (omp_notice_variable): Update type classification for Fortran.
 115         (gimplify_scan_omp_clauses): Update calls for new argument; handle
 116         GDMK_SCALAR_TARGET; for Fortran, GDMK_POINTER avoid GOVD_MAP_0LEN_ARRAY.
 117         * langhooks-def.h (lhd_omp_scalar_p): Add 'ptr_ok' argument.
 118         * langhooks.c (lhd_omp_scalar_p): Likewise.
 119         (LANG_HOOKS_OMP_ALLOCATABLE_P, LANG_HOOKS_OMP_SCALAR_TARGET_P): New.
 120         (LANG_HOOKS_DECLS): Add them.
 121         * langhooks.h (struct lang_hooks_for_decls): Add new hooks, update
 122         omp_scalar_p pointer type to include the new bool argument.
 123
 124 2021-06-15  Tobias Burnus  <tobias@codesourcery.com>
 125
 126         Backported from master:
 127         2021-06-11  Thomas Schwinge  <thomas@codesourcery.com>
 128
 129         * tree-pretty-print.h (dump_omp_clauses): Add 'bool = true'
 130         default argument.
 131         * tree-pretty-print.c (dump_omp_clauses): Update.
 132         (dump_generic_node) <OMP_CLAUSE>: Use it.
 133
 134 2021-06-08  Tobias Burnus  <tobias@codesourcery.com>
 135
 136         Backported from master:
 137         2021-06-08  Jakub Jelinek  <jakub@redhat.com>
 138
 139         PR c++/100957
 140         * tree-inline.c (copy_tree_body_r): For OMP_CLAUSE_DEPEND don't
 141         check TREE_CODE if OMP_CLAUSE_DECL is NULL.
 142
 143 2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
 144
 145         Backported from master:
 146         2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
 147
 148         * tree-nested.c (convert_nonlocal_omp_clauses,
 149         convert_local_omp_clauses): Handle OMP_CLAUSE_BIND.
 150
 151 2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
 152
 153         Backported from master:
 154         2021-06-03  Jakub Jelinek  <jakub@redhat.com>
 155
 156         PR c++/100859
 157         * tree-inline.c (copy_tree_body_r): Handle iterators on
 158         OMP_CLAUSE_AFFINITY or OMP_CLAUSE_DEPEND.
 159
 160 2021-05-31  Tobias Burnus  <tobias@codesourcery.com>
 161
 162         Backported from master:
 163         2021-05-29  Jakub Jelinek  <jakub@redhat.com>
 164
 165         PR middle-end/99928
 166         * gimplify.c (gimplify_scan_omp_clauses): For taskloop simd
 167         combined with parallel, make sure to add shared clause to
 168         parallel for explicit linear clause.
 169
 170 2021-05-28  Tobias Burnus  <tobias@codesourcery.com>
 171
 172         Backported from master:
 173         2021-05-28  Jakub Jelinek  <jakub@redhat.com>
 174
 175         * tree.h (OMP_CLAUSE_MAP_IMPLICIT): Define.
 176
 177 2021-05-28  Tobias Burnus  <tobias@codesourcery.com>
 178
 179         Backported from master:
 180         2021-05-28  Tobias Burnus  <tobias@codesourcery.com>
 181
 182         * gimplify.c (gimplify_omp_affinity): New.
 183         (gimplify_scan_omp_clauses): Call it; remove affinity clause afterwards.
 184         * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_AFFINITY.
 185         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_AFFINITY.
 186         * tree.c (omp_clause_num_ops, omp_clause_code_name): Add clause.
 187         (walk_tree_1): Handle OMP_CLAUSE_AFFINITY.
 188
 189 2021-05-26  Tobias Burnus  <tobias@codesourcery.com>
 190
 191         Backported from master:
 192         2021-05-26  Jakub Jelinek  <jakub@redhat.com>
 193
 194         PR libgomp/100573
 195         * omp-low.c: Include omp-offload.h.
 196         (create_omp_child_function): If current_function_decl has
 197         "omp declare target" attribute and is_gimple_omp_offloaded,
 198         remove that attribute from the copy of attribute list and
 199         add "omp target entrypoint" attribute instead.
 200         (lower_omp_target): Mark .omp_data_sizes.* and .omp_data_kinds.*
 201         variables for offloading if in omp_maybe_offloaded_ctx.
 202         * omp-offload.c (pass_omp_target_link::execute): Nullify second
 203         argument to GOMP_target_data_ext in offloaded code.
 204
 205 2021-05-23  Tobias Burnus  <tobias@codesourcery.com>
 206
 207         Backported from master:
 208         2021-05-21  Jakub Jelinek  <jakub@redhat.com>
 209
 210         PR middle-end/99928
 211         * tree.h (OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET): Define.
 212         * gimplify.c (enum gimplify_omp_var_data): Fix up
 213         GOVD_MAP_HAS_ATTACHMENTS value, add GOVD_FIRSTPRIVATE_IMPLICIT.
 214         (omp_lastprivate_for_combined_outer_constructs): If combined target
 215         has GOVD_FIRSTPRIVATE_IMPLICIT set for the decl, change it to
 216         GOVD_MAP | GOVD_SEEN.
 217         (gimplify_scan_omp_clauses): Set GOVD_FIRSTPRIVATE_IMPLICIT for
 218         firstprivate clauses with OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT.
 219         (gimplify_adjust_omp_clauses): For firstprivate clauses with
 220         OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT either clear that bit and
 221         OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET too, or remove it and
 222         let it be replaced by implicit map clause.
 223
 224 2021-05-23  Tobias Burnus  <tobias@codesourcery.com>
 225
 226         Backported from master:
 227         2021-05-21  Jakub Jelinek  <jakub@redhat.com>
 228
 229         PR middle-end/99928
 230         * gimplify.c (omp_lastprivate_for_combined_outer_constructs): New
 231         function.
 232         (gimplify_scan_omp_clauses) <case OMP_CLAUSE_LASTPRIVATE>: Use it.
 233         (gimplify_omp_for): Likewise.
 234
 235 2021-05-20  Tobias Burnus  <tobias@codesourcery.com>
 236
 237         Backported from master:
 238         2021-05-20  Jakub Jelinek  <jakub@redhat.com>
 239
 240         PR middle-end/99928
 241         * gimplify.c (gimplify_scan_omp_clauses) <case OMP_CLAUSE_LINEAR>: For
 242         explicit linear clause when combined with target, make it map(tofrom:)
 243         instead of no clause or firstprivate.
 244
 245 2021-05-19  Tobias Burnus  <tobias@codesourcery.com>
 246
 247         Backported from master:
 248         2021-05-19  Jakub Jelinek  <jakub@redhat.com>
 249
 250         PR middle-end/99928
 251         * tree.h (OMP_MASTER_COMBINED): Define.
 252         * gimplify.c (gimplify_scan_omp_clauses): Rewrite lastprivate
 253         handling for outer combined/composite constructs to a loop.
 254         Handle lastprivate on combined target.
 255         (gimplify_expr): Formatting fix.
 256
 257 2021-05-18  Tobias Burnus  <tobias@codesourcery.com>
 258
 259         Backported from master:
 260         2021-05-17  Tom de Vries  <tdevries@suse.de>
 261
 262         PR target/100497
 263         * config/nvptx/nvptx-protos.h (nvptx_output_atomic_insn): Declare
 264         * config/nvptx/nvptx.c (nvptx_output_barrier)
 265         (nvptx_output_atomic_insn): New function.
 266         (nvptx_print_operand): Add support for 'B'.
 267         * config/nvptx/nvptx.md: Use nvptx_output_atomic_insn for atomic
 268         insns.
 269
 270 2021-05-14  Tobias Burnus  <tobias@codesourcery.com>
 271
 272         Backported from master:
 273         2021-05-12  Tom de Vries  <tdevries@suse.de>
 274
 275         PR target/96005
 276         * config/nvptx/nvptx-opts.h (enum ptx_version): New enum.
 277         * config/nvptx/nvptx.c (nvptx_file_start): Print .version according
 278         to ptx_version_option.
 279         * config/nvptx/nvptx.h (TARGET_PTX_6_3): Define.
 280         * config/nvptx/nvptx.md (define_insn "nvptx_shuffle<mode>")
 281         (define_insn "nvptx_vote_ballot"): Use sync variant for
 282         TARGET_PTX_6_3.
 283         * config/nvptx/nvptx.opt (ptx_version): Add enum.
 284         (mptx): Add option.
 285         * doc/invoke.texi (Nvidia PTX Options): Add mptx item.
 286
 287 2021-05-14  Tobias Burnus  <tobias@codesourcery.com>
 288
 289         Backported from master:
 290         2021-05-07  Tobias Burnus  <tobias@codesourcery.com>
 291                     Tom de Vries  <tdevries@suse.de>
 292
 293         * omp-low.c (lower_rec_simd_input_clauses): Set max_vf = 1 if
 294         a truth_value_p reduction variable is nonintegral.
 295
 296 2021-05-14  Tobias Burnus  <tobias@codesourcery.com>
 297
 298         Backported from master:
 299         2021-05-04  Tobias Burnus  <tobias@codesourcery.com>
 300
 301         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses): Handle
 302         && and || with floating-point and complex arguments.
 303
 304 2021-05-14  Tobias Burnus  <tobias@codesourcery.com>
 305
 306         Backported from master:
 307         2021-05-03  Tom de Vries  <tdevries@suse.de>
 308
 309         PR target/100321
 310         * omp-low.c (lower_rec_input_clauses): Disable SIMT for user-defined
 311         reduction.
 312
 313 2021-05-14  Tobias Burnus  <tobias@codesourcery.com>
 314
 315         Backported from master:
 316         2021-04-29  Tom de Vries  <tdevries@suse.de>
 317
 318         * omp-expand.c (expand_omp_simd): Add step_orig, and replace uses of
 319         fd->loop.step by either step or orig_step.
 320         Backported from master:
 321
 322 2021-05-13  Kwok Cheung Yeung  <kcy@codesourcery.com>
 323
 324         * omp-offload.c (oacc_xform_loop): Remove vec_tiles.
 325
 326 2021-05-05  Chung-Lin Tang  <cltang@codesourcery.com>
 327
 328         * tree.h (OMP_CLAUSE_MAP_IMPLICIT_P): New access macro for 'implicit'
 329         bit, using 'base.deprecated_flag' field of tree_node.
 330         * tree-pretty-print.c (dump_omp_clause): Add support for printing
 331         implicit attribute in tree dumping.
 332         * gimplify.c (gimplify_adjust_omp_clauses_1):
 333         Set OMP_CLAUSE_MAP_IMPLICIT_P to 1 if map clause is implicitly created.
 334         (gimplify_adjust_omp_clauses): Adjust place of adding implicitly created
 335         clauses, from simple append, to starting of list, after non-map clauses.
 336         * omp-low.c (lower_omp_target): Add GOMP_MAP_IMPLICIT bits into kind
 337         values passed to libgomp for implicit maps.
 338
 339 2021-04-30  Kwok Cheung Yeung  <kcy@codesourcery.com>
 340
 341         Backport from mainline
 342         2021-04-23  Thomas Schwinge  <thomas@codesourcery.com>
 343
 344         * omp-offload.c (oacc_validate_dims): Implement
 345         '-Wopenacc-parallelism'.
 346         * doc/invoke.texi (-Wopenacc-parallelism): Document.
 347
 348 2021-04-07  Kwok Cheung Yeung  <kcy@codesourcery.com>
 349
 350         * omp-low.c (is_oacc_parallel_or_serial): Handle
 351         GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_PARALLELIZED and
 352         GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GANG_SINGLE.
 353
 354 2021-03-01  Kwok Cheung Yeung  <kcy@codesourcery.com>
 355
 356         * omp-expand.c (expand_oacc_for): Convert .tile variable to
 357         diff_type before multiplying.
 358         * omp-general.c (omp_extract_for_data): Use accumulated precision
 359         of all collapsed for-loops as precision of iteration variable, up
 360         to the precision of a long long.
 361
 362 2020-08-24  Tobias Burnus  <tobias@codesourcery.com>
 363
 364         * omp-sese.c: Fix comment typo.
 365
 366 2020-08-19  Sandra Loosemore  <sandra@codesourcery.com>
 367
 368         Add a "combined" flag for "acc kernels loop" etc directives.
 369
 370         * tree.h (OACC_LOOP_COMBINED): New.
 371
 372 2020-07-30  Julian Brown  <julian@codesourcery.com>
 373
 374         * config/gcn/gcn-tree.c (gcn_goacc_get_worker_red_decl): Do not
 375         cache/share decls for reduction temporaries between invocations.
 376         (gcn_goacc_reduction_teardown): Unshare VAR on second use.
 377         * config/gcn/gcn.c (gcn_init_machine_status): Do not initialise
 378         reduc_decls.
 379         * config/gcn/gcn.h (machine_function): Remove reduc_decls cache.
 380
 381 2020-07-30  Julian Brown  <julian@codesourcery.com>
 382
 383         * config/gcn/gcn-tree.c (gcn_goacc_reduction_teardown): Remove useless
 384         temporary variable "decl".
 385
 386 2020-07-15  Kwok Cheung Yeung  <kcy@codesourcery.com>
 387             Andrew Stubbs   <ams@codesourcery.com>
 388
 389         * plugin/plugin-gcn.c (parse_target_attributes): Automatically set
 390         the number of teams and threads if necessary.
 391         (gcn_exec): Automatically set the number of gangs and workers if
 392         necessary.
 393
 394 2020-07-15  Julian Brown  <julian@codesourcery.com>
 395
 396         * config/gcn/gcn.c (gimple.h): Include.
 397         (gcn_fork_join): Emit barrier for worker-level joins.
 398         * omp-sese.c (find_local_vars_to_propagate): Add writes_gangprivate
 399         bitmap parameter. Set bit for blocks containing gang-private variable
 400         writes.
 401         (worker_single_simple): Don't emit barrier after predicated block.
 402         (worker_single_copy): Don't emit barrier if we're not broadcasting
 403         anything and the block contains no gang-private writes.
 404         (neuter_worker_single): Don't predicate blocks that only contain NOPs
 405         or internal marker functions.  Pass has_gangprivate_write argument to
 406         worker_single_copy.
 407         (oacc_do_neutering): Add writes_gangprivate bitmap handling.
 408
 409 2020-07-15  Julian Brown  <julian@codesourcery.com>
 410
 411         * config/gcn/gcn-valu.md (scatter<mode>_insn_1offset_ds<exec_scatter>):
 412         Add waitcnt.
 413         (*mov<mode>_insn, *movti_insn): Add waitcnt to ds_write alternatives.
 414
 415 2020-07-15  Julian Brown  <julian@codesourcery.com>
 416
 417         * config/gcn/gcn-protos.h (gcn_goacc_adjust_private_decl): Update
 418         prototype.
 419         * config/gcn/gcn-tree.c (gcn_goacc_get_worker_red_decl): Use
 420         preallocated block of LDS memory.
 421         (gcn_goacc_create_propagation_record): Add OFFSET parameter, and return
 422         temporary LDS space at that offset.  Return pointer in "sender" case.
 423         (gcn_goacc_adjust_private_decl): Return var.
 424         * config/gcn/gcn.c (acc_lds_size, gangprivate_hwm, lds_allocs): New
 425         global vars.
 426         (ACC_LDS_SIZE): Define as acc_lds_size.
 427         (gcn_init_machine_status): Don't initialise lds_allocated and
 428         lds_allocs fields of machine function struct.
 429         (gcn_option_override): Handle default size for gang-private variables
 430         and -mgang-local-size option.
 431         (gcn_expand_prologue): Use LDS_SIZE instead of LDS_SIZE-1 when
 432         initialising M0_REG.
 433         (gcn_shared_mem_layout): New function.
 434         (gcn_print_lds_decl): Update comment. Use global lds_allocs map and
 435         gangprivate_hwm variable.
 436         (TARGET_GOACC_SHARED_MEM_LAYOUT): Define target hook.
 437         * config/gcn/gcn.h (machine_function): Remove lds_allocated,
 438         lds_allocs. Add reduction_base, reduction_limit.
 439         * config/gcn/gcn.opt (gang_local_size_opt): New global.
 440         (mgang-local-size=): New option.
 441         * config/nvptx/nvptx.c (nvptx_goacc_adjust_private_decl): Return var.
 442         * doc/tm.texi.in (TARGET_GOACC_SHARED_MEM_LAYOUT): Place documentation
 443         hook.
 444         * doc/tm.texi: Regenerate.
 445         * omp-offload.c (addr_expr_rewrite_info): Change adjusted_vars to a
 446         hash_map.
 447         (rewrite_addr_expr): Rewrite VAR_DECLs also.
 448         (default_goacc_create_propagation_record): Add OFFSET parameter.
 449         (execute_oacc_gimple_workers): Calculate per-function reduction
 450         temporary and private-variable size.  Call OpenACC shared_mem_layout
 451         hook.  Move num_workers==1 handling here.
 452         (execute_oacc_device_lower): Fix for adjusted_vars being a hash_map
 453         rather than a hash_set.
 454         (pass_oacc_gimple_workers::gate): Remove num_workers==1 handling from
 455         here.  Enable pass for all OpenACC routines in order to call shared
 456         memory-layout hook.
 457         * omp-sese.c (targhooks.h, diagnostic-core.h): Add includes.
 458         (build_sender_ref): Handle sender_decl being pointer.
 459         (worker_single_copy): Add PLACEMENT and ISOLATE_BROADCASTS parameters.
 460         Pass placement argument to create_propagation_record hook invocations.
 461         Handle sender_decl being pointer and isolate_broadcasts inserting extra
 462         barriers.
 463         (blk_offset_map_t): Add typedef.
 464         (neuter_worker_single): Add BLK_OFFSET_MAP parameter.  Pass
 465         preallocated range to worker_single_copy call.
 466         (dfs_broadcast_reachable_1): New function.
 467         (idx_decl_pair_t, used_range_vec_t): New typedefs.
 468         (sort_size_descending): New function.
 469         (addr_range): New class.
 470         (splay_tree_compare_addr_range, splay_tree_free_key, first_fit_range,
 471         merge_ranges_1, merge_ranges): New functions.
 472         (oacc_do_neutering): Add BOUNDS_LO, BOUNDS_HI parameters.  Arrange
 473         layout of shared memory for broadcast operations.
 474         * omp-sese.h (oacc_do_neutering): Update prototype.
 475         * target.def (adjust_private_decl): Change return type to tree.
 476         (create_propagation_record): Add OFFSET parameter.
 477         (shared_mem_layout): New hook.
 478         * targhooks.h (default_goacc_create_propagation_record): Update
 479         prototype.
 480
 481 2020-07-15  Julian Brown  <julian@codesourcery.com>
 482
 483         * omp-offload.c (pass_oacc_gimple_workers::gate): Disable worker
 484         partitioning if num_workers is 1.
 485
 486 2020-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
 487
 488         * omp-sese.c (oacc_build_component_ref): Apply address space of
 489         base object to the entire component reference.
 490
 491 2020-03-27  Sandra Loosemore  <sandra@codesourcery.com>
 492
 493         * doc/invoke.texi (Option Summary): Add entries for
 494         -Wopenacc-kernels-annotate-loops and
 495         -fno-openacc-kernels-annotate-loops.
 496         (Warning Options): Document -Wopenacc-kernels-annotate-loops.
 497         (Optimization Options): Document -fno-openacc-kernels-annotate-loops.
 498
 499 2020-03-19  Kwok Cheung Yeung  <kcy@codesourcery.com>
 500
 501         * omp-offload.c (oacc_loop_auto_partitions): Check for 'omp declare
 502         target' attributes with a gang clause attached.
 503
 504 2020-03-16  Tobias Burnus  <tobias@codesourcery.com>
 505
 506         * omp-oacc-kernels-decompose.cc (maybe_build_inner_data_region):
 507         is_gimple_reg vars are not yet mapped, fall through to map is as
 508         before the transformation.
 509         (omp_oacc_kernels_decompose_1): Don't map is_gimple_reg vars.
 510         (decompose_kernels_region_body): Use tofrom for is_gimple_reg vars.
 511         (omp_oacc_kernels_decompose_1): Handle is_gimple_reg vars as without
 512         data kernels.
 513
 514 2020-03-12  Kwok Cheung Yeung  <kcy@codesourcery.com>
 515
 516         * omp-sese.c (install_var_field): Generate a field name for a VAR_DECL
 517         using the DECL_UID if it does not have a DECL_NAME.
 518
 519 2019-10-21  Julian Brown  <julian@codesourcery.com>
 520
 521         * omp-oacc-kernels-decompose.cc (decompose_kernels_region_body): Add
 522         inhibit_async parameter.  Force asynchronous kernel launches to
 523         run synchronously if they have problematic variable mappings.
 524         Don't add explicit wait for decomposed kernels regions we forced
 525         synchronous.
 526         (omp_oacc_kernels_decompose_1): Detect problematic variable mappings,
 527         and inhibit asynchronous execution if we find any.
 528
 529 2020-02-06  Tobias Burnus  <tobias@codesourcery.com>
 530
 531         * omp-low.c (convert_from_firstprivate_int):
 532         Use VIEW_CONVERT also for vectors.
 533
 534 2020-02-20  Kwok Cheung Yeung  <kcy@codesourcery.com>
 535
 536         * omp-general.c (oacc_verify_routine_clauses): Handle
 537         OMP_CLAUSE_NOHOST.
 538
 539 2020-02-19  Julian Brown  <julian@codesourcery.com>
 540
 541         * gimplify.c (gimplify_scan_omp_clauses): Handle
 542         GOMP_MAP_DECLARE_ALLOCATE and GOMP_MAP_DECLARE_DEALLOCATE.
 543
 544 2018-10-04  Cesar Philippidis  <cesar@codesourcery.com>
 545             Julian Brown  <julian@codesourcery.com>
 546
 547         * omp-low.c (scan_sharing_clauses): Update handling of OpenACC declare
 548         create, declare copyin and declare deviceptr to have local lifetimes.
 549         (convert_to_firstprivate_int): Handle pointer types.
 550         (convert_from_firstprivate_int): Likewise.  Create local storage for
 551         the values being pointed to.  Add new orig_type argument.
 552         (lower_omp_target): Handle GOMP_MAP_DECLARE_{ALLOCATE,DEALLOCATE}.
 553         Add orig_type argument to convert_from_firstprivate_int call.
 554         Allow pointer types with GOMP_MAP_FIRSTPRIVATE_INT.  Don't privatize
 555         firstprivate VLAs.
 556         * tree-pretty-print.c (dump_omp_clause): Handle
 557         GOMP_MAP_DECLARE_{ALLOCATE,DEALLOCATE}.
 558
 559 2019-10-16  Julian Brown  <julian@codesourcery.com>
 560             Tobias Burnus  <tobias@codesourcery.com>
 561
 562         * config/gcn/gcn-protos.h (gcn_goacc_adjust_gangprivate_decl): Rename
 563         to...
 564         (gcn_goacc_adjust_private_decl): ...this.
 565         * config/gcn/gcn-tree.c (diagnostic-core.h): Include.
 566         (gcn_goacc_adjust_gangprivate_decl): Rename to...
 567         (gcn_goacc_adjust_private_decl): ...this. Add LEVEL parameter.
 568         * config/gcn/gcn.c (TARGET_GOACC_ADJUST_GANGPRIVATE_DECL): Rename to...
 569         (TARGET_GOACC_ADJUST_PRIVATE_DECL): ...this.
 570         * config/nvptx/nvptx.c (tree-pretty-print.h): Include.
 571         (nvptx_goacc_adjust_private_decl): New function.
 572         (TARGET_GOACC_ADJUST_PRIVATE_DECL): Define hook using above function.
 573         * doc/tm.texi.in (TARGET_GOACC_ADJUST_GANGPRIVATE_DECL): Rename to...
 574         (TARGET_GOACC_ADJUST_PRIVATE_DECL): ...this.
 575         * doc/tm.texi: Regenerated.
 576         * internal-fn.c (expand_UNIQUE): Handle IFN_UNIQUE_OACC_PRIVATE.
 577         * internal-fn.h (IFN_UNIQUE_CODES): Add OACC_PRIVATE.
 578         * omp-low.c (omp_context): Remove oacc_partitioning_levels field.
 579         (lower_oacc_reductions): Add PRIVATE_MARKER parameter.  Insert before
 580         fork.
 581         (lower_oacc_head_tail): Add PRIVATE_MARKER parameter. Modify its
 582         gimple call arguments as appropriate. Don't set
 583         oacc_partitioning_levels in omp_context. Pass private_marker to
 584         lower_oacc_reductions.
 585         (oacc_record_private_var_clauses): Don't check for NULL ctx.
 586         (mark_oacc_gangprivate): Remove unused function.
 587         (make_oacc_private_marker): New function.
 588         (lower_omp_for): Only call oacc_record_vars_in_bind for
 589         OpenACC contexts.  Create private marker and pass to
 590         lower_oacc_head_tail.
 591         (lower_omp_target): Remove unnecessary call to
 592         oacc_record_private_var_clauses. Remove call to mark_oacc_gangprivate.
 593         Create private marker and pass to lower_oacc_reductions.
 594         (process_oacc_gangprivate_1): Remove.
 595         (lower_omp_1): Only call oacc_record_vars_in_bind for OpenACC.  Don't
 596         iterate over contexts calling process_oacc_gangprivate_1.
 597         (omp-offload.c (oacc_loop_xform_head_tail): Treat
 598         private-variable markers like fork/join when transforming head/tail
 599         sequences.
 600         (execute_oacc_device_lower): Use IFN_UNIQUE_OACC_PRIVATE instead of
 601         "oacc gangprivate" attributes to determine partitioning level of
 602         variables.  Remove unused variables.
 603         * omp-sese.c (find_gangprivate_vars): New function.
 604         (find_local_vars_to_propagate): Use GANGPRIVATE_VARS parameter instead
 605         of "oacc gangprivate" attribute to determine which variables are
 606         gang-private.
 607         (oacc_do_neutering): Use find_gangprivate_vars.
 608         * target.def (adjust_gangprivate_decl): Rename to...
 609         (adjust_private_decl): ...this.  Update documentation (briefly).
 610
 611 2019-09-20  Julian Brown  <julian@codesourcery.com>
 612
 613         * gimplify.c (localize_reductions): Rewrite references for
 614         OMP_CLAUSE_PRIVATE also.
 615
 616 2019-09-17  Tobias Burnus  <tobias@codesourcery.com>
 617
 618         * gimplify.c (gomp_oacc_needs_data_present): Remove unused variables.
 619         * omp-low.c (process_oacc_gangprivate_1): Comment unused
 620         parameter name to silence unused warning.
 621         * omp-sese.c (omp_sese_number, omp_sese_pseudo): Remove
 622         superfluous ().
 623         (oacc_do_neutering): Use signed int to avoid a warning.
 624
 625 2019-09-06  Julian Brown  <julian@codesourcery.com>
 626
 627         * gimplify.c (gimplify_omp_for): Use for_stmt in call to
 628         localize_reductions.
 629
 630 2019-09-06  Julian Brown  <julian@codesourcery.com>
 631
 632         * config/nvptx/nvptx.c (omp-sese.h): Include.
 633         (bb_pair_t, bb_pair_vec_t, pseudo_node_t, bracket, bracket_vec_t,
 634         bb_sese, bb_sese::~bb_sese, bb_sese::append, bb_sese::remove,
 635         BB_SET_SESE, BB_GET_SESE, nvptx_sese_number, nvptx_sese_pseudo,
 636         nvptx_sese_color, nvptx_find_sese): Remove.
 637         (nvptx_neuter_pars): Call omp_find_sese instead of nvptx_find_sese.
 638         * omp-sese.c (omp-sese.h): Include.
 639         (struct parallel): Rename to...
 640         (struct parallel_g): This.
 641         (parallel::parallel, parallel::~parallel): Rename to...
 642         (parallel_g::parallel_g, parallel_g::~parallel_g): These.
 643         (omp_sese_dump_pars, omp_sese_find_par, omp_sese_discover_pars,
 644         populate_single_mode_bitmaps, find_ssa_names_to_propagate,
 645         find_partitioned_var_uses, find_local_vars_to_propagate,
 646         neuter_worker_single): Update for parallel_g name change.
 647         (bb_pair_t, bb_pair_vec_t): Remove.
 648         (omp_find_sese): Make global.
 649         * omp-sese.h (bb_pair_t, bb_pair_vec_t): New.
 650         (omp_find_sese): Add prototype.
 651
 652 2019-09-06  Julian Brown  <julian@codesourcery.com>
 653
 654         * gimplify.c (gimplify_omp_workshare): Use OMP_CLAUSES, OMP_BODY
 655         instead of OMP_TARGET_CLAUSES, OMP_TARGET_BODY.
 656
 657 2019-09-05  Julian Brown  <julian@codesourcery.com>
 658
 659         * config/gcn/gcn.c (gcn_goacc_validate_dims): Remove
 660         no-flag_worker-partitioning assertion.
 661         (TARGET_GOACC_WORKER_PARTITIONING): Define target hook to true.
 662         * config/gcn/gcn.opt (flag_worker_partitioning): Change default to 1.
 663
 664 2019-09-05  Cesar Philippidis  <cesar@codesourcery.com>
 665             Julian Brown  <julian@codesourcery.com>
 666
 667         * gimplify.c (privatize_reduction): New struct.
 668         (localize_reductions_r, localize_reductions): New functions.
 669         (gimplify_omp_for): Call localize_reductions.
 670         (gimplify_omp_workshare): Likewise.
 671         * omp-low.c (lower_oacc_reductions): Handle localized reductions.
 672         Create fewer temp vars.
 673         * tree-core.h (omp_clause_code): Add OMP_CLAUSE_REDUCTION_PRIVATE_DECL
 674         documentation.
 675         * tree.c (omp_clause_num_ops): Bump number of ops for
 676         OMP_CLAUSE_REDUCTION to 6.
 677         (walk_tree_1): Adjust accordingly.
 678         * tree.h (OMP_CLAUSE_REDUCTION_PRIVATE_DECL): Add macro.
 679
 680 2019-09-05  Julian Brown  <julian@codesourcery.com>
 681
 682         * config/gcn/gcn-protos.h (gcn_goacc_adjust_propagation_record): Rename
 683         prototype to...
 684         (gcn_goacc_create_propagation_record): This.
 685         * config/gcn/gcn-tree.c (gcn_goacc_adjust_propagation_record): Rename
 686         function to...
 687         (gcn_goacc_create_propagation_record): This.  Adjust comment.
 688         * config/gcn/gcn.c (gcn_init_builtins): Override decls for
 689         BUILT_IN_GOACC_SINGLE_START, BUILT_IN_GOACC_SINGLE_COPY_START,
 690         BUILT_IN_GOACC_SINGLE_COPY_END and BUILT_IN_GOACC_BARRIER.
 691         (gcn_fork_join): Remove inaccurate comment.
 692         (TARGET_GOACC_ADJUST_PROPAGATION_RECORD): Rename to...
 693         (TARGET_GOACC_CREATE_PROPAGATION_RECORD): This.
 694
 695 2019-09-05  Julian Brown  <julian@codesourcery.com>
 696
 697         * Makefile.in (OBJS): Add omp-sese.o.
 698         * omp-builtins.def (BUILT_IN_GOACC_BARRIER, BUILT_IN_GOACC_SINGLE_START,
 699         BUILT_IN_GOACC_SINGLE_COPY_START, BUILT_IN_GOACC_SINGLE_COPY_END): New
 700         builtins.
 701         * omp-offload.c (omp-sese.h): Include header.
 702         (oacc_loop_xform_head_tail): Call update_stmt for modified builtin
 703         calls.
 704         (oacc_loop_process): Likewise.
 705         (default_goacc_create_propagation_record): New default implementation
 706         for TARGET_GOACC_CREATE_PROPAGATION_RECORD hook.
 707         (execute_oacc_loop_designation): New.  Split out of oacc_device_lower.
 708         (execute_oacc_gimple_workers): New.  Likewise.
 709         (execute_oacc_device_lower): Recreate dims array.
 710         (pass_data_oacc_loop_designation, pass_data_oacc_gimple_workers): New.
 711         (pass_oacc_loop_designation, pass_oacc_gimple_workers): New.
 712         (make_pass_oacc_loop_designation, make_pass_oacc_gimple_workers): New.
 713         * omp-offload.h (oacc_fn_attrib_level): Add prototype.
 714         * omp-sese.c: New file.
 715         * omp-sese.h: New file.
 716         * passes.def (pass_oacc_loop_designation, pass_oacc_gimple_workers):
 717         Add passes.
 718         * target.def (worker_partitioning, create_propagation_record): Add
 719         target hooks.
 720         * targhooks.h (default_goacc_create_propagation_record): Add prototype.
 721         * tree-pass.h (make_pass_oacc_loop_designation,
 722         make_pass_oacc_gimple_workers): Add prototypes.
 723         * doc/tm.texi.in (TARGET_GOACC_WORKER_PARTITIONING,
 724         TARGET_GOACC_CREATE_PROPAGATION_RECORD): Add documentation hooks.
 725         * doc/tm.texi: Regenerate.
 726
 727 2019-09-05  Julian Brown  <julian@codesourcery.com>
 728
 729         * omp-offload.c (convert.h): Include.
 730         (struct addr_expr_rewrite_info): Add struct.
 731         (rewrite_addr_expr): New function.
 732         (is_sync_builtin_call): New function.
 733         (execute_oacc_device_lower): Support rewriting gang-private variables
 734         using target hook, and fix up addr_expr nodes afterwards.
 735         * target.def (adjust_gangprivate_decl): New target hook.
 736         * doc/tm.texi.in (TARGET_GOACC_ADJUST_GANGPRIVATE_DECL): Document new
 737         target hook.
 738         * doc/tm.texi: Regenerate.
 739
 740 2019-08-13  Julian Brown  <julian@codesourcery.com>
 741
 742         * omp-oacc-kernels-decompose.cc (add_wait): New function, split out
 743         of...
 744         (add_async_clauses_and_wait): ...here. Call new outlined function.
 745         (decompose_kernels_region_body): Add wait at the end of
 746         explicitly-asynchronous kernels regions.
 747
 748 2019-07-10  Cesar Philippidis  <cesar@codesourcery.com>
 749             Julian Brown  <julian@codesourcery.com>
 750
 751         * gimplify.c (gimplify_adjust_omp_clauses_1): Raise error for
 752         assumed-size arrays in map clauses for Fortran/OpenMP.
 753         * omp-low.c (lower_omp_target): Set the size of assumed-size Fortran
 754         arrays to one to allow use of data already mapped on the offload device.
 755
 756 2019-05-28  Julian Brown  <julian@codesourcery.com>
 757
 758         * omp-low.c (mark_oacc_gangprivate): Add CTX parameter.  Use to look up
 759         correct decl to add attribute to.
 760         (lower_omp_for): Move "oacc gangprivate" processing from here...
 761         (process_oacc_gangprivate_1): ...to here. New function.
 762         (lower_omp_target): Update call to mark_oacc_gangprivate.
 763         (execute_lower_omp): Call process_oacc_gangprivate_1 for each OMP
 764         context.
 765
 766 2019-05-20  Julian Brown  <julian@codesourcery.com>
 767
 768         * gimplify.c (gimplify_adjust_omp_clauses_1): Support implied no_alloc
 769         and optional arguments based on mappings in enclosing data regions.
 770
 771 2019-05-19  Julian Brown  <julian@codesourcery.com>
 772
 773         * gimplify.c (oacc_array_mapping_info): Add REF field.
 774         (gimplify_scan_omp_clauses): Initialise above field for data blocks
 775         passed by reference.
 776         (gomp_oacc_needs_data_present): Handle references.
 777         (gimplify_adjust_omp_clauses_1): Handle references and optional
 778         arguments for variables declared in lexically-enclosing OpenACC data
 779         region.
 780
 781 2019-05-16  Julian Brown  <julian@codesourcery.com>
 782
 783         * omp-oacc-kernels-decompose.cc (find_omp_for_index_vars_1,
 784         find_omp_for_index_vars): New functions.
 785         (maybe_build_inner_data_region): Add IDX_VARS argument. Don't add
 786         CREATE mapping clauses for loop index variables.  Set TREE_ADDRESSABLE
 787         flag on newly-mapped declarations as a side effect.
 788         (decompose_kernels_region_body): Call find_omp_for_index_vars.  Don't
 789         create PRESENT clause for loop index variables.  Pass index variable
 790         set to maybe_build_inner_data_region.
 791
 792 2019-01-23  Thomas Schwinge  <thomas@codesourcery.com>
 793
 794         * params.opt (openacc_kernels): Default to decompose.
 795
 796 2018-12-11  Julian Brown  <julian@codesourcery.com>
 797             Chung-Lin Tang  <cltang@codesourcery.com>
 798
 799         * config/nvptx/nvptx.c (tree-hash-traits.h): Include.
 800         (gangprivate_shared_size): New global variable.
 801         (gangprivate_shared_align): Likewise.
 802         (gangprivate_shared_sym): Likewise.
 803         (gangprivate_shared_hmap): Likewise.
 804         (nvptx_option_override): Initialize gangprivate_shared_sym,
 805         gangprivate_shared_align.
 806         (nvptx_file_end): Output gangprivate_shared_sym.
 807         (nvptx_goacc_expand_accel_var): New function.
 808         (nvptx_set_current_function): New function.
 809         (TARGET_SET_CURRENT_FUNCTION): Define hook.
 810         (TARGET_GOACC_EXPAND_ACCEL): Likewise.
 811         * doc/tm.texi (TARGET_GOACC_EXPAND_ACCEL_VAR): Document new hook.
 812         * doc/tm.texi.in (TARGET_GOACC_EXPAND_ACCEL_VAR): Likewise.
 813         * expr.c (expand_expr_real_1): Remap decls marked with the
 814         "oacc gangprivate" attribute.
 815         * omp-low.c (omp_context): Add oacc_partitioning_level and
 816         oacc_addressable_var_decls fields.
 817         (new_omp_context): Initialize oacc_addressable_var_decls in new
 818         omp_context.
 819         (delete_omp_context): Delete oacc_addressable_var_decls in old
 820         omp_context.
 821         (lower_oacc_head_tail): Record partitioning-level count in omp context.
 822         (oacc_record_private_var_clauses, oacc_record_vars_in_bind)
 823         (mark_oacc_gangprivate): New functions.
 824         (lower_omp_for): Call oacc_record_private_var_clauses with "for"
 825         clauses.  Call mark_oacc_gangprivate for gang-partitioned loops.
 826         (lower_omp_target): Call oacc_record_private_var_clauses with "target"
 827         clauses.
 828         Call mark_oacc_gangprivate for offloaded target regions.
 829         (lower_omp_1): Call vars_in_bind for GIMPLE_BIND within OMP regions.
 830         * target.def (expand_accel_var): New hook.
 831
 832 2018-09-05  Cesar Philippidis  <cesar@codesourcery.com>
 833             Chung-Lin Tang  <cltang@codesourcery.com>
 834
 835         * gimplify.c (omp_add_variable): Enable firstprivate reduction
 836         variables.
 837
 838 2018-09-20  Cesar Philippidis  <cesar@codesourcery.com>
 839
 840         * omp-low.c (lower_oacc_head_mark): Don't mark OpenACC auto
 841         loops as independent inside acc parallel regions.
 842
 843 2018-12-22  Cesar Philippidis  <cesar@codesourcery.com>
 844             Julian Brown  <julian@codesourcery.com>
 845             Tobias Burnus  <tobias@codesourcery.com>
 846
 847         * omp-low.c (maybe_lookup_field_in_outer_ctx): New function.
 848         (convert_to_firstprivate_int): New function.
 849         (convert_from_firstprivate_int): New function.
 850         (lower_omp_target): Enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC.
 851         Remove unused variable.
 852
 853 2018-08-28  Julian Brown  <julian@codesourcery.com>
 854             Cesar Philippidis  <cesar@codesourcery.com>
 855
 856         * gimplify.c (oacc_array_mapping_info): New struct.
 857         (gimplify_omp_ctx): Add decl_data_clause hash map.
 858         (new_omp_context): Zero-initialise above.
 859         (delete_omp_context): Delete above if allocated.
 860         (gimplify_scan_omp_clauses): Scan for array mappings on data constructs,
 861         and record in above map.
 862         (gomp_oacc_needs_data_present): New function.
 863         (gimplify_adjust_omp_clauses_1): Handle data mappings (e.g. array
 864         slices) declared in lexically-enclosing data constructs.
 865         * omp-low.c (lower_omp_target): Allow decl for bias not to be present
 866         in OpenACC context.
 867
 868 2018-10-05  Nathan Sidwell  <nathan@acm.org>
 869             Tom de Vries  <tdevries@suse.de>
 870             Thomas Schwinge  <thomas@codesourcery.com>
 871             Julian Brown  <julian@codesourcery.com>
 872
 873         * doc/invoke.texi (fopenacc-dim): Update.
 874         * omp-offload.c (oacc_parse_default_dims): Update.
 875         (oacc_validate_dims): Emit warnings about strange partitioning choices.
 876
 877 2019-09-20  Chung-Lin Tang <cltang@codesourcery.com>
 878             Cesar Philippidis  <cesar@codesourcery.com>
 879
 880         * omp-expand.c (struct omp_region): Add inside_kernels_p field.
 881         (expand_omp_for_generic): Adjust to generate a 'sequential' loop
 882         when GOMP builtin arguments are BUILT_IN_NONE.
 883         (expand_omp_for): Use expand_omp_for_generic to generate a
 884         non-parallelized loop for OMP_FORs inside OpenACC kernels regions.
 885         (expand_omp): Mark inside_kernels_p field true for regions
 886         nested inside OpenACC kernels constructs.
 887
 888 2018-09-20  Cesar Philippidis  <cesar@codesourcery.com>
 889             Julian Brown  <julian@codesourcery.com>
 890
 891         * omp-low.c (install_var_field): New base_pointer_restrict
 892         argument.
 893         (scan_sharing_clauses): Update call to install_var_field.
 894         (omp_target_base_pointers_restrict_p): New function.
 895         (scan_omp_target): Update call to install_var_field.
 896
 897 2018-10-30  Cesar Philippidis  <cesar@codesourcery.com>
 898
 899         * config/nvptx/nvptx.c (nvptx_propagate_unified): New.
 900         (nvptx_split_blocks): Call it for cond_uni insn.
 901         (nvptx_expand_cond_uni): New.
 902         (enum nvptx_builtins): Add NVPTX_BUILTIN_COND_UNI.
 903         (nvptx_init_builtins): Initialize it.
 904         (nvptx_expand_builtin):
 905         (nvptx_generate_vector_shuffle): Change integral SHIFT operand to
 906         tree BITS operand.
 907         (nvptx_vector_reduction): New.
 908         (nvptx_adjust_reduction_type): New.
 909         (nvptx_goacc_reduction_setup): Use it to adjust the type of ref_to_res.
 910         (nvptx_goacc_reduction_init): Don't update LHS if it doesn't exist.
 911         (nvptx_goacc_reduction_fini): Call nvptx_vector_reduction for vector.
 912         Use it to adjust the type of ref_to_res.
 913         (nvptx_goacc_reduction_teardown):
 914         * config/nvptx/nvptx.md (cond_uni): New pattern.
 915
 916 2018-06-29  Cesar Philippidis  <cesar@codesourcery.com>
 917             James Norris  <jnorris@codesourcery.com>
 918
 919         * gimplify.c (enum gimplify_omp_var_data): Add GOVD_DEVICETPR.
 920         (omp_notice_variable): Add GOVD_DEVICEPTR attribute when appropriate.
 921         (gimplify_scan_omp_clauses): Add GOVD_DEVICEPTR attribute when
 922         appropriate.
 923         (gimplify_adjust_omp_clauses_1): Set GOMP_MAP_FORCE_DEVICEPTR for
 924         implicit deviceptr mappings.
 925
 926 2018-10-02  Thomas Schwinge  <thomas@codesourcery.com>
 927             Cesar Philippidis  <cesar@codesourcery.com>
 928
 929         * tree-core.h (omp_clause_code): Add OMP_CLAUSE_NOHOST.
 930         * tree.c (omp_clause_num_ops, omp_clause_code_name, walk_tree_1):
 931         Update for these.
 932         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_NOHOST.
 933         * gimplify.c (gimplify_scan_omp_clauses)
 934         (gimplify_adjust_omp_clauses): Handle OMP_CLAUSE_NOHOST.
 935         * tree-nested.c (convert_nonlocal_omp_clauses)
 936         (convert_local_omp_clauses): Likewise.
 937         * omp-low.c (scan_sharing_clauses): Likewise.
 938         * omp-offload.c (maybe_discard_oacc_function): New function.
 939         (execute_oacc_device_lower) [!ACCEL_COMPILER]: Handle OpenACC
 940         nohost clauses.
 941
 942 2020-04-19  Chung-Lin Tang  <cltang@codesourcery.com>
 943
 944         PR other/76739
 945
 946         * builtin-types.def (BT_FN_VOID_INT_SIZE_PTR_PTR_PTR_VAR): New type.
 947         * omp-builtins.def (BUILT_IN_GOACC_DATA_START): Adjust function type
 948         to new BT_FN_VOID_INT_SIZE_PTR_PTR_PTR_VAR.
 949         * gimplify.c (gimplify_scan_omp_clauses): Skip gimplification of
 950         OMP_CLAUSE_SIZE of non-contiguous array maps (which is a TREE_LIST).
 951         * omp-expand.c (expand_omp_target): Add non-contiguous array descriptor
 952         pointers to variadic arguments.
 953         * omp-low.c (append_field_to_record_type): New function.
 954         (create_noncontig_array_descr_type): Likewise.
 955         (create_noncontig_array_descr_init_code): Likewise.
 956         (scan_sharing_clauses): For non-contiguous array map kinds, check for
 957         supported dimension structure, and install non-contiguous array
 958         variable into current omp_context.
 959         (reorder_noncontig_array_clauses): New function.
 960         (scan_omp_target): Call reorder_noncontig_array_clauses to place
 961         non-contiguous array map clauses at beginning of clause sequence.
 962         (lower_omp_target): Add handling for non-contiguous array map kinds,
 963         add all created non-contiguous array descriptors to
 964         gimple_omp_target_data_arg.