gcc/fortran/ChangeLog

   1 2021-10-18  Tobias Burnus  <tobias@codesourcery.com>
   2
   3         PR fortran/102086
   4         PR fortran/92189
   5         PR fortran/92621
   6         PR fortran/101308
   7         PR fortran/101309
   8         PR fortran/101635
   9         PR fortran/92482
  10         * decl.c (gfc_verify_c_interop_param): Remove 'sorry' for
  11         scalar allocatable/pointer and len=*.
  12         * expr.c (is_CFI_desc): Return true for for those.
  13         * gfortran.h (CFI_type_kind_shift, CFI_type_mask,
  14         CFI_type_from_type_kind, CFI_VERSION, CFI_MAX_RANK,
  15         CFI_attribute_pointer, CFI_attribute_allocatable,
  16         CFI_attribute_other, CFI_type_Integer, CFI_type_Logical,
  17         CFI_type_Real, CFI_type_Complex, CFI_type_Character,
  18         CFI_type_ucs4_char, CFI_type_struct, CFI_type_cptr,
  19         CFI_type_cfunptr, CFI_type_other): New #define.
  20         * trans-array.c (CFI_FIELD_BASE_ADDR, CFI_FIELD_ELEM_LEN,
  21         CFI_FIELD_VERSION, CFI_FIELD_RANK, CFI_FIELD_ATTRIBUTE,
  22         CFI_FIELD_TYPE, CFI_FIELD_DIM, CFI_DIM_FIELD_LOWER_BOUND,
  23         CFI_DIM_FIELD_EXTENT, CFI_DIM_FIELD_SM,
  24         gfc_get_cfi_descriptor_field, gfc_get_cfi_desc_base_addr,
  25         gfc_get_cfi_desc_elem_len, gfc_get_cfi_desc_version,
  26         gfc_get_cfi_desc_rank, gfc_get_cfi_desc_type,
  27         gfc_get_cfi_desc_attribute, gfc_get_cfi_dim_item,
  28         gfc_get_cfi_dim_lbound, gfc_get_cfi_dim_extent, gfc_get_cfi_dim_sm):
  29         New define/functions to access the CFI array descriptor.
  30         (gfc_conv_descriptor_type): New function for the GFC descriptor.
  31         (gfc_get_array_span): Handle expr of CFI descriptors and
  32         assumed-type descriptors.
  33         (gfc_trans_array_bounds): Remove 'static'.
  34         (gfc_conv_expr_descriptor): For assumed type, use the dtype of
  35         the actual argument.
  36         (structure_alloc_comps): Remove ' ' inside tabs.
  37         * trans-array.h (gfc_trans_array_bounds, gfc_conv_descriptor_type,
  38         gfc_get_cfi_desc_base_addr, gfc_get_cfi_desc_elem_len,
  39         gfc_get_cfi_desc_version, gfc_get_cfi_desc_rank,
  40         gfc_get_cfi_desc_type, gfc_get_cfi_desc_attribute,
  41         gfc_get_cfi_dim_lbound, gfc_get_cfi_dim_extent, gfc_get_cfi_dim_sm):
  42         New prototypes.
  43         * trans-decl.c (gfor_fndecl_cfi_to_gfc, gfor_fndecl_gfc_to_cfi):
  44         Remove global vars.
  45         (gfc_build_builtin_function_decls): Remove their initialization.
  46         (gfc_get_symbol_decl, create_function_arglist,
  47         gfc_trans_deferred_vars): Update for CFI.
  48         (convert_CFI_desc): Remove and replace by ...
  49         (gfc_conv_cfi_to_gfc): ... this function
  50         (gfc_generate_function_code): Call it; create local GFC var for CFI.
  51         * trans-expr.c (gfc_maybe_dereference_var): Handle CFI.
  52         (gfc_conv_subref_array_arg): Handle the if-noncontigous-only copy in
  53         when the result should be a descriptor.
  54         (gfc_conv_gfc_desc_to_cfi_desc): Completely rewritten.
  55         (gfc_conv_procedure_call): CFI fixes.
  56         * trans-openmp.c (gfc_omp_is_optional_argument,
  57         gfc_omp_check_optional_argument): Handle optional
  58         CFI.
  59         * trans-stmt.c (gfc_trans_select_rank_cases): Cleanup, avoid invalid
  60         code for allocatable/pointer dummies, which cannot be assumed size.
  61         * trans-types.c (gfc_cfi_descriptor_base): New global var.
  62         (gfc_get_dtype_rank_type): Skip rank init for rank < 0.
  63         (gfc_sym_type): Handle CFI dummies.
  64         (gfc_get_function_type): Update call.
  65         (gfc_get_cfi_dim_type, gfc_get_cfi_type): New.
  66         * trans-types.h (gfc_sym_type): Update prototype.
  67         (gfc_get_cfi_type): New prototype.
  68         * trans.c (gfc_trans_runtime_check): Make conditions more consistent
  69         to avoid '<logical> AND_THEN <long int>' in conditions.
  70         * trans.h (gfor_fndecl_cfi_to_gfc, gfor_fndecl_gfc_to_cfi): Remove
  71         global-var declaration.
  72
  73 2021-10-18  Tobias Burnus  <tobias@codesourcery.com>
  74
  75         PR fortran/102745
  76         * intrinsic.c (gfc_convert_type_warn): Fix checks by checking CLASS
  77         and do typcheck in correct order for type extension.
  78         * misc.c (gfc_typename): Print proper not internal CLASS type name.
  79
  80 2021-10-15  Harald Anlauf  <anlauf@gmx.de>
  81             Tobias Burnus  <tobias@codesourcery.com>
  82
  83         PR fortran/102685
  84         * decl.c (match_clist_expr): Set rank/shape of clist initializer
  85         to match LHS.
  86         * resolve.c (resolve_structure_cons): In a structure constructor,
  87         compare shapes of array components against declared shape.
  88
  89 2021-10-14  Harald Anlauf  <anlauf@gmx.de>
  90
  91         PR fortran/102717
  92         * simplify.c (gfc_simplify_reshape): Replace assert by error
  93         message for negative elements in SHAPE array.
  94
  95 2021-10-14  Harald Anlauf  <anlauf@gmx.de>
  96
  97         PR fortran/102716
  98         * check.c (gfc_check_shape): Reorder checks so that invalid KIND
  99         arguments can be detected.
 100
 101 2021-10-14  Kwok Cheung Yeung  <kcy@codesourcery.com>
 102
 103         * gfortran.h (enum gfc_statement): Add ST_OMP_DECLARE_VARIANT.
 104         (enum gfc_omp_trait_property_kind): New.
 105         (struct gfc_omp_trait_property): New.
 106         (gfc_get_omp_trait_property): New macro.
 107         (struct gfc_omp_selector): New.
 108         (gfc_get_omp_selector): New macro.
 109         (struct gfc_omp_set_selector): New.
 110         (gfc_get_omp_set_selector): New macro.
 111         (struct gfc_omp_declare_variant): New.
 112         (gfc_get_omp_declare_variant): New macro.
 113         (struct gfc_namespace): Add omp_declare_variant field.
 114         (gfc_free_omp_declare_variant_list): New prototype.
 115         * match.h (gfc_match_omp_declare_variant): New prototype.
 116         * openmp.c (gfc_free_omp_trait_property_list): New.
 117         (gfc_free_omp_selector_list): New.
 118         (gfc_free_omp_set_selector_list): New.
 119         (gfc_free_omp_declare_variant_list): New.
 120         (gfc_match_omp_clauses): Add extra optional argument.  Handle end of
 121         clauses for context selectors.
 122         (omp_construct_selectors, omp_device_selectors,
 123         omp_implementation_selectors, omp_user_selectors): New.
 124         (gfc_match_omp_context_selector): New.
 125         (gfc_match_omp_context_selector_specification): New.
 126         (gfc_match_omp_declare_variant): New.
 127         * parse.c: Include tree-core.h and omp-general.h.
 128         (decode_omp_directive): Handle 'declare variant'.
 129         (case_omp_decl): Include ST_OMP_DECLARE_VARIANT.
 130         (gfc_ascii_statement): Handle ST_OMP_DECLARE_VARIANT.
 131         (gfc_parse_file): Initialize omp_requires_mask.
 132         * symbol.c (gfc_free_namespace): Call
 133         gfc_free_omp_declare_variant_list.
 134         * trans-decl.c (gfc_get_extern_function_decl): Call
 135         gfc_trans_omp_declare_variant.
 136         (gfc_create_function_decl): Call gfc_trans_omp_declare_variant.
 137         * trans-openmp.c (gfc_trans_omp_declare_variant): New.
 138         * trans-stmt.h (gfc_trans_omp_declare_variant): New prototype.
 139
 140 2021-10-13  Tobias Burnus  <tobias@codesourcery.com>
 141
 142         * dump-parse-tree.c (show_omp_clauses): Handle ancestor modifier,
 143         avoid ICE for GFC_OMP_ATOMIC_SWAP.
 144         * gfortran.h (gfc_omp_clauses): Change 'anecestor' into a bitfield.
 145
 146 2021-10-12  Tobias Burnus  <tobias@codesourcery.com>
 147
 148         PR fortran/102541
 149         * check.c (gfc_check_present): Handle optional CLASS.
 150         * interface.c (gfc_compare_actual_formal): Likewise.
 151         * trans-array.c (gfc_trans_g77_array): Likewise.
 152         * trans-decl.c (gfc_build_dummy_array_decl): Likewise.
 153         * trans-types.c (gfc_sym_type): Likewise.
 154         * primary.c (gfc_variable_attr): Fixes for dummy and
 155         pointer when 'class%_data' is passed.
 156         * trans-expr.c (set_dtype_for_unallocated, gfc_conv_procedure_call):
 157         For assumed-rank dummy, fix setting rank for dealloc/notassoc actual
 158         and setting ubound to -1 for assumed-size actuals.
 159
 160 2021-10-10  Harald Anlauf  <anlauf@gmx.de>
 161
 162         PR fortran/99348
 163         PR fortran/102521
 164         * decl.c (add_init_expr_to_sym): Extend initialization of
 165         parameter arrays from scalars to handle derived types.
 166
 167 2021-10-09  Harald Anlauf  <anlauf@gmx.de>
 168
 169         PR fortran/65454
 170         * module.c (read_module): Handle old and new-style relational
 171         operators when used in USE module, ONLY: OPERATOR(op).
 172
 173 2021-10-08  Sandra Loosemore  <sandra@codesourcery.com>
 174
 175         PR fortran/54753
 176         * interface.c (gfc_compare_actual_formal): Add diagnostic
 177         for F2018:C839.  Refactor shared code and fix bugs with class
 178         array info lookup, and extend similar diagnostic from PR94110
 179         to also cover class types.
 180
 181 2021-10-08  Martin Liska  <mliska@suse.cz>
 182
 183         * options.c (gfc_post_options): Use new macro
 184         OPTION_SET_P.
 185
 186 2021-10-06  Tobias Burnus  <tobias@codesourcery.com>
 187
 188         * resolve.c (resolve_values): Only show
 189         deprecated warning if attr.referenced.
 190
 191 2021-10-04  Tobias Burnus  <tobias@codesourcery.com>
 192
 193         PR fortran/54753
 194         * resolve.c (can_generate_init, resolve_fl_variable_derived,
 195         resolve_symbol): Only do initialization with intent(out) if not
 196         inside of an interface block.
 197
 198 2021-10-01  Martin Sebor  <msebor@redhat.com>
 199
 200         PR c/102103
 201         * array.c: Remove an unnecessary test.
 202         * trans-array.c: Same.
 203
 204 2021-10-01  Jakub Jelinek  <jakub@redhat.com>
 205
 206         * gfortran.h (gfc_omp_clauses): Add order_reproducible bitfield.
 207         * dump-parse-tree.c (show_omp_clauses): Print REPRODUCIBLE: for it.
 208         * openmp.c (gfc_match_omp_clauses): Set order_reproducible for
 209         explicit reproducible: modifier.
 210         * trans-openmp.c (gfc_trans_omp_clauses): Set
 211         OMP_CLAUSE_ORDER_REPRODUCIBLE for order_reproducible.
 212         (gfc_split_omp_clauses): Also copy order_reproducible.
 213
 214 2021-09-30  Harald Anlauf  <anlauf@gmx.de>
 215
 216         PR fortran/102458
 217         * simplify.c (simplify_size): Resolve expressions used in array
 218         specifications so that SIZE can be simplified.
 219
 220 2021-09-30  Harald Anlauf  <anlauf@gmx.de>
 221
 222         * expr.c: The correct reference to Fortran standard is: F2018:10.1.12.
 223
 224 2021-09-30  Tobias Burnus  <tobias@codesourcery.com>
 225
 226         PR fortran/71703
 227         PR fortran/84007
 228         * trans-intrinsic.c (gfc_conv_same_type_as): Fix handling
 229         of UNLIMITED_POLY.
 230         * trans.h (gfc_vtpr_hash_get): Renamed prototype to ...
 231         (gfc_vptr_hash_get): ... this to match function name.
 232
 233 2021-09-29  Harald Anlauf  <anlauf@gmx.de>
 234
 235         PR fortran/102520
 236         * array.c (expand_constructor): Do not dereference NULL pointer.
 237
 238 2021-09-27  Tobias Burnus  <tobias@codesourcery.com>
 239
 240         PR fortran/94070
 241         * trans-array.c (gfc_tree_array_size): New function to
 242         find size inline (whole array or one dimension).
 243         (array_parameter_size): Use it, take stmt_block as arg.
 244         (gfc_conv_array_parameter): Update call.
 245         * trans-array.h (gfc_tree_array_size): Add prototype.
 246         * trans-decl.c (gfor_fndecl_size0, gfor_fndecl_size1): Remove
 247         these global vars.
 248         (gfc_build_intrinsic_function_decls): Remove their initialization.
 249         * trans-expr.c (gfc_conv_procedure_call): Update
 250         bounds of pointer/allocatable actual args to nonallocatable/nonpointer
 251         dummies to be one based.
 252         * trans-intrinsic.c (gfc_conv_intrinsic_shape): Fix case for
 253         assumed rank with allocatable/pointer dummy.
 254         (gfc_conv_intrinsic_size): Update to use inline function.
 255         * trans.h (gfor_fndecl_size0, gfor_fndecl_size1): Remove var decl.
 256
 257 2021-09-26  Tobias Burnus  <tobias@codesourcery.com>
 258
 259         PR fortran/101334
 260         * trans-intrinsic.c (gfc_conv_associated): Support assumed-rank
 261         'pointer' with scalar/array 'target' argument.
 262
 263 2021-09-24  Harald Anlauf  <anlauf@gmx.de>
 264
 265         PR fortran/102458
 266         * expr.c (is_non_constant_intrinsic): Check for intrinsics
 267         excluded in constant expressions (F2018:10.1.2).
 268         (gfc_is_constant_expr): Use that check.
 269
 270 2021-09-24  Sandra Loosemore  <sandra@codesourcery.com>
 271
 272         PR fortran/101333
 273         * interface.c (compare_parameter): Enforce F2018 C711.
 274
 275 2021-09-24  Tobias Burnus  <tobias@codesourcery.com>
 276
 277         PR fortran/55534
 278         * scanner.c (load_file): Return void, call (gfc_)fatal_error for
 279         all errors.
 280         (include_line, include_stmt, gfc_new_file): Remove exit call
 281         for failed load_file run.
 282
 283 2021-09-23  Sandra Loosemore  <sandra@codesourcery.com>
 284
 285         PR fortran/101320
 286         * decl.c (gfc_verify_c_interop_param): Handle F2018 C1557,
 287         aka TS29113 C516.
 288
 289 2021-09-23  Harald Anlauf  <anlauf@gmx.de>
 290             Tobias Burnus  <tobias@codesourcery.com>
 291
 292         PR fortran/93834
 293         * trans-intrinsic.c (gfc_conv_allocated): Cleanup. Handle
 294         coindexed scalar coarrays.
 295
 296 2021-09-23  Sandra Loosemore  <sandra@codesourcery.com>
 297
 298         PR fortran/101319
 299         * interface.c (gfc_compare_actual_formal): Extend existing
 300         assumed-type diagnostic to also check for argument with type
 301         parameters.
 302
 303 2021-09-23  Sandra Loosemore  <sandra@codesourcery.com>
 304
 305         PR fortran/101334
 306         * check.c (gfc_check_associated): Allow an assumed-rank
 307         array for the pointer argument.
 308         * interface.c (compare_parameter): Also give rank mismatch
 309         error on assumed-rank array.
 310
 311 2021-09-23  Sandra Loosemore  <sandra@codesourcery.com>
 312
 313         * trans-stmt.c (trans_associate_var): Check that result of
 314         GFC_DECL_SAVED_DESCRIPTOR is not null before using it.
 315
 316 2021-09-22  Tobias Burnus  <tobias@codesourcery.com>
 317
 318         PR fortran/55534
 319         * cpp.c (gfc_cpp_register_include_paths, gfc_cpp_post_options):
 320         Add new bool verbose_missing_dir_warn argument.
 321         * cpp.h (gfc_cpp_post_options): Update prototype.
 322         * f95-lang.c (gfc_init): Remove duplicated file-not found diag.
 323         * gfortran.h (gfc_check_include_dirs): Takes bool
 324         verbose_missing_dir_warn arg.
 325         (gfc_new_file): Returns now void.
 326         * options.c (gfc_post_options): Update to warn for -I and -J,
 327         only, by default but for all when user requested.
 328         * scanner.c (gfc_do_check_include_dir):
 329         (gfc_do_check_include_dirs, gfc_check_include_dirs): Take bool
 330         verbose warn arg and update to avoid printing the same message
 331         twice or never.
 332         (load_file): Fix indent.
 333         (gfc_new_file): Return void and exit when load_file failed
 334         as all other load_file users do.
 335
 336 2021-09-22  Tobias Burnus  <tobias@codesourcery.com>
 337
 338         * trans-expr.c (gfc_simple_for_loop): New.
 339         * trans.h (gfc_simple_for_loop): New prototype.
 340
 341 2021-09-21  Tobias Burnus  <tobias@codesourcery.com>
 342
 343         PR fortran/55534
 344         * cpp.c: Define GCC_C_COMMON_C for #include "options.h" to make
 345         cpp_reason_option_codes available.
 346         (gfc_cpp_register_include_paths): Make static, set pfile's
 347         warn_missing_include_dirs and move before caller.
 348         (gfc_cpp_init_cb): New, cb code moved from ...
 349         (gfc_cpp_init_0): ... here.
 350         (gfc_cpp_post_options): Call gfc_cpp_init_cb.
 351         (cb_cpp_diagnostic_cpp_option): New. As implemented in c-family
 352         to match CppReason flags to -W... names.
 353         (cb_cpp_diagnostic): Use it to replace single special case.
 354         * cpp.h (gfc_cpp_register_include_paths): Remove as now static.
 355         * gfortran.h (gfc_check_include_dirs): New prototype.
 356         (gfc_add_include_path): Add new bool arg.
 357         * options.c (gfc_init_options): Don't set -Wmissing-include-dirs.
 358         (gfc_post_options): Set it here after commandline processing. Call
 359         gfc_add_include_path with defer_warn=false.
 360         (gfc_handle_option): Call it with defer_warn=true.
 361         * scanner.c (gfc_do_check_include_dir, gfc_do_check_include_dirs,
 362         gfc_check_include_dirs): New. Diagnostic moved from ...
 363         (add_path_to_list): ... here, which came before cmdline processing.
 364         Take additional bool defer_warn argument.
 365         (gfc_add_include_path): Take additional defer_warn arg.
 366         * scanner.h (struct gfc_directorylist): Reorder for alignment issues,
 367         add new 'bool warn'.
 368
 369 2021-09-20  Tobias Burnus  <tobias@codesourcery.com>
 370
 371         * gfortran.h (gfc_omp_clauses): Add order_unconstrained.
 372         * dump-parse-tree.c (show_omp_clauses): Dump it.
 373         * openmp.c (gfc_match_omp_clauses): Match unconstrained/reproducible
 374         modifiers to ordered(concurrent).
 375         (OMP_DISTRIBUTE_CLAUSES): Accept ordered clause.
 376         (resolve_omp_clauses): Reject ordered + order on same directive.
 377         * trans-openmp.c (gfc_trans_omp_clauses, gfc_split_omp_clauses): Pass
 378         on unconstrained modifier of ordered(concurrent).
 379
 380 2021-09-17  Harald Anlauf  <anlauf@gmx.de>
 381
 382         PR fortran/102366
 383         * trans-decl.c (gfc_finish_var_decl): Disable the warning message
 384         for variables moved from stack to static storange if they are
 385         declared in the main, but allow the move to happen.
 386
 387 2021-09-17  Sandra Loosemore  <sandra@codesourcery.com>
 388
 389         * intrinsic.texi (ISO_C_BINDING): Change C_FLOAT128 to correspond
 390         to _Float128 rather than __float128.
 391         * iso-c-binding.def (c_float128): Update comments.
 392         * trans-intrinsic.c (gfc_builtin_decl_for_float_kind): Likewise.
 393         (build_round_expr): Likewise.
 394         (gfc_build_intrinsic_lib_fndcecls): Likewise.
 395         * trans-types.h (gfc_real16_is_float128): Likewise.
 396
 397 2021-09-16  Harald Anlauf  <anlauf@gmx.de>
 398
 399         PR fortran/102287
 400         * trans-expr.c (gfc_conv_procedure_call): Wrap deallocation of
 401         allocatable components of optional allocatable derived type
 402         procedure arguments with INTENT(OUT) into a presence check.
 403
 404 2021-09-14  Harald Anlauf  <anlauf@gmx.de>
 405
 406         PR fortran/102311
 407         * resolve.c (resolve_entries): Attempt to recover cleanly after
 408         rejecting mismatched function entries.
 409
 410 2021-09-14  Tobias Burnus  <tobias@codesourcery.com>
 411
 412         PR fortran/102313
 413         * parse.c (gfc_ascii_statement): Add missing ST_OMP_END_SCOPE.
 414
 415 2021-09-13  Harald Anlauf  <anlauf@gmx.de>
 416
 417         PR fortran/82314
 418         * decl.c (add_init_expr_to_sym): For proper initialization of
 419         array-valued named constants the array bounds need to be
 420         simplified before adding the initializer.
 421
 422 2021-09-13  Harald Anlauf  <anlauf@gmx.de>
 423
 424         PR fortran/85130
 425         * expr.c (find_substring_ref): Handle given substring start and
 426         end indices as signed integers, not unsigned.
 427
 428 2021-09-09  Harald Anlauf  <anlauf@gmx.de>
 429
 430         PR fortran/98490
 431         * trans-expr.c (gfc_conv_substring): Do not generate substring
 432         bounds check for implied do loop index variable before it actually
 433         becomes defined.
 434
 435 2021-09-08  liuhongt  <hongtao.liu@intel.com>
 436
 437         * options.c (gfc_post_options): Issue an error for
 438         -fexcess-precision=16.
 439
 440 2021-09-07  Harald Anlauf  <anlauf@gmx.de>
 441
 442         PR fortran/101327
 443         * expr.c (find_array_element): When bounds cannot be determined as
 444         constant, return error instead of aborting.
 445
 446 2021-09-07  Marcel Vollweiler  <marcel@codesourcery.com>
 447
 448         * openmp.c (gfc_match_omp_flush): Parse 'seq_cst' clause on 'flush'
 449         directive.
 450         * trans-openmp.c (gfc_trans_omp_flush): Handle OMP_MEMORDER_SEQ_CST.
 451
 452 2021-09-03  Tobias Burnus  <tobias@codesourcery.com>
 453
 454         * decl.c (gfc_verify_c_interop_param): Reject pointer with
 455         CONTIGUOUS attributes as dummy arg. Reject character len > 1
 456         when passed as byte stream.
 457
 458 2021-09-01  Harald Anlauf  <anlauf@gmx.de>
 459
 460         PR fortran/56985
 461         * resolve.c (resolve_common_vars): Fix grammar and improve wording
 462         of error message rejecting an unlimited polymorphic in COMMON.
 463
 464 2021-08-31  Harald Anlauf  <anlauf@gmx.de>
 465
 466         PR fortran/100950
 467         * simplify.c (substring_has_constant_len): Minimize checks for
 468         substring expressions being allowed.
 469
 470 2021-08-31  Marcel Vollweiler  <marcel@codesourcery.com>
 471
 472         * gfortran.h: Add variable for 'ancestor' in struct gfc_omp_clauses.
 473         * openmp.c (gfc_match_omp_clauses): Parse device-modifiers 'device_num'
 474         and 'ancestor' in 'target device' clauses.
 475         * trans-openmp.c (gfc_trans_omp_clauses): Set OMP_CLAUSE_DEVICE_ANCESTOR.
 476
 477 2021-08-30  Harald Anlauf  <anlauf@gmx.de>
 478
 479         PR fortran/102113
 480         * match.c (gfc_match_goto): Allow for whitespace in parsing list
 481         of labels.
 482
 483 2021-08-30  Harald Anlauf  <anlauf@gmx.de>
 484
 485         PR fortran/101349
 486         * resolve.c (resolve_allocate_expr): An unlimited polymorphic
 487         argument to ALLOCATE must be ALLOCATABLE or a POINTER.  Fix the
 488         corresponding check.
 489
 490 2021-08-28  Harald Anlauf  <anlauf@gmx.de>
 491
 492         PR fortran/87737
 493         * resolve.c (resolve_entries): For functions of type CHARACTER
 494         tighten the checks for matching characteristics.
 495
 496 2021-08-25  Lewis Hyatt  <lhyatt@gmail.com>
 497
 498         PR other/93067
 499         * cpp.c (gfc_cpp_post_options): Call new function
 500         diagnostic_initialize_input_context().
 501
 502 2021-08-24  Harald Anlauf  <anlauf@gmx.de>
 503
 504         PR fortran/98411
 505         * trans-decl.c (gfc_finish_var_decl): Adjust check to handle
 506         implicit SAVE as well as variables in the main program.  Improve
 507         warning message text.
 508
 509 2021-08-23  Tobias Burnus  <tobias@codesourcery.com>
 510
 511         * openmp.c (gfc_match_dupl_check, gfc_match_dupl_memorder,
 512         gfc_match_dupl_atomic): New.
 513         (gfc_match_omp_clauses): Use them; remove duplicate
 514         'release'/'relaxed' clause matching; improve error dignostic
 515         for 'default'.
 516
 517 2021-08-23  Tobias Burnus  <tobias@codesourcery.com>
 518
 519         * dump-parse-tree.c (show_omp_clauses): Handle 'strict' modifier
 520         on grainsize/num_tasks
 521         * gfortran.h (gfc_omp_clauses): Add grainsize_strict
 522         and num_tasks_strict.
 523         * trans-openmp.c (gfc_trans_omp_clauses, gfc_split_omp_clauses):
 524         Handle 'strict' modifier on grainsize/num_tasks.
 525         * openmp.c (gfc_match_omp_clauses): Likewise.
 526
 527 2021-08-20  Tobias Burnus  <tobias@codesourcery.com>
 528
 529         * error.c
 530         (error_uinteger): Take 'long long unsigned' instead
 531         of 'long unsigned' as argumpent.
 532         (error_integer): Take 'long long' instead of 'long'.
 533         (error_hwuint, error_hwint): New.
 534         (error_print): Update to handle 'll' and 'w'
 535         length modifiers.
 536         * simplify.c (substring_has_constant_len): Use '%wd'
 537         in gfc_error.
 538
 539 2021-08-20  Harald Anlauf  <anlauf@gmx.de>
 540
 541         PR fortran/100950
 542         * simplify.c (substring_has_constant_len): Fix format string of
 543         gfc_error, pass HOST_WIDE_INT bounds values via char buffer.
 544
 545 2021-08-20  Tobias Burnus  <tobias@codesourcery.com>
 546
 547         * dump-parse-tree.c (show_omp_clauses): Handle 'at', 'severity'
 548         and 'message' clauses.
 549         (show_omp_node, show_code_node): Handle EXEC_OMP_ERROR.
 550         * gfortran.h (gfc_statement): Add ST_OMP_ERROR.
 551         (gfc_omp_severity_type, gfc_omp_at_type): New.
 552         (gfc_omp_clauses): Add 'at', 'severity' and 'message' clause;
 553         use more bitfields + ENUM_BITFIELD.
 554         (gfc_exec_op): Add EXEC_OMP_ERROR.
 555         * match.h (gfc_match_omp_error): New.
 556         * openmp.c (enum omp_mask1): Add OMP_CLAUSE_(AT,SEVERITY,MESSAGE).
 557         (gfc_match_omp_clauses): Handle new clauses.
 558         (OMP_ERROR_CLAUSES, gfc_match_omp_error): New.
 559         (resolve_omp_clauses): Resolve new clauses.
 560         (omp_code_to_statement, gfc_resolve_omp_directive): Handle
 561         EXEC_OMP_ERROR.
 562         * parse.c (decode_omp_directive, next_statement,
 563         gfc_ascii_statement): Handle 'omp error'.
 564         * resolve.c (gfc_resolve_blocks): Likewise.
 565         * st.c (gfc_free_statement): Likewise.
 566         * trans-openmp.c (gfc_trans_omp_error): Likewise.
 567         (gfc_trans_omp_directive): Likewise.
 568         * trans.c (trans_code): Likewise.
 569
 570 2021-08-20  Jakub Jelinek  <jakub@redhat.com>
 571
 572         * types.def (BT_FN_VOID_CONST_PTR_SIZE): New DEF_FUNCTION_TYPE_2.
 573         * f95-lang.c (ATTR_COLD_NORETURN_NOTHROW_LEAF_LIST): Define.
 574
 575 2021-08-19  Harald Anlauf  <anlauf@gmx.de>
 576
 577         PR fortran/100950
 578         * simplify.c (substring_has_constant_len): New.
 579         (gfc_simplify_len): Handle case of substrings with constant
 580         bounds.
 581
 582 2021-08-18  Tobias Burnus  <tobias@codesourcery.com>
 583
 584         * match.h (gfc_match_omp_nothing): New.
 585         * openmp.c (gfc_match_omp_nothing): New.
 586         * parse.c (decode_omp_directive): Match 'nothing' directive.
 587
 588 2021-08-17  Tobias Burnus  <tobias@codesourcery.com>
 589
 590         * dump-parse-tree.c (show_omp_node, show_code_node): Handle
 591         EXEC_OMP_SCOPE.
 592         * gfortran.h (enum gfc_statement): Add ST_OMP_(END_)SCOPE.
 593         (enum gfc_exec_op): Add EXEC_OMP_SCOPE.
 594         * match.h (gfc_match_omp_scope): New.
 595         * openmp.c (OMP_SCOPE_CLAUSES): Define
 596         (gfc_match_omp_scope): New.
 597         (gfc_match_omp_cancellation_point, gfc_match_omp_end_nowait):
 598         Improve error diagnostic.
 599         (omp_code_to_statement): Handle ST_OMP_SCOPE.
 600         (gfc_resolve_omp_directive): Handle EXEC_OMP_SCOPE.
 601         * parse.c (decode_omp_directive, next_statement,
 602         gfc_ascii_statement, parse_omp_structured_block,
 603         parse_executable): Handle OpenMP's scope construct.
 604         * resolve.c (gfc_resolve_blocks): Likewise
 605         * st.c (gfc_free_statement): Likewise
 606         * trans-openmp.c (gfc_trans_omp_scope): New.
 607         (gfc_trans_omp_directive): Call it.
 608         * trans.c (trans_code): handle EXEC_OMP_SCOPE.
 609
 610 2021-08-16  Tobias Burnus  <tobias@codesourcery.com>
 611
 612         * dump-parse-tree.c (show_omp_clauses): Handle 'filter' clause.
 613         (show_omp_node, show_code_node): Handle (combined) omp masked construct.
 614         * frontend-passes.c (gfc_code_walker): Likewise.
 615         * gfortran.h (enum gfc_statement): Add ST_OMP_*_MASKED*.
 616         (enum gfc_exec_op): Add EXEC_OMP_*_MASKED*.
 617         * match.h (gfc_match_omp_masked, gfc_match_omp_masked_taskloop,
 618         gfc_match_omp_masked_taskloop_simd, gfc_match_omp_parallel_masked,
 619         gfc_match_omp_parallel_masked_taskloop,
 620         gfc_match_omp_parallel_masked_taskloop_simd): New prototypes.
 621         * openmp.c (enum omp_mask1): Add OMP_CLAUSE_FILTER.
 622         (gfc_match_omp_clauses): Match it.
 623         (OMP_MASKED_CLAUSES, gfc_match_omp_parallel_masked,
 624         gfc_match_omp_parallel_masked_taskloop,
 625         gfc_match_omp_parallel_masked_taskloop_simd,
 626         gfc_match_omp_masked, gfc_match_omp_masked_taskloop,
 627         gfc_match_omp_masked_taskloop_simd): New.
 628         (resolve_omp_clauses): Resolve filter clause.
 629         (gfc_resolve_omp_parallel_blocks, resolve_omp_do,
 630         omp_code_to_statement, gfc_resolve_omp_directive): Handle
 631         omp masked constructs.
 632         * parse.c (decode_omp_directive, case_exec_markers,
 633         gfc_ascii_statement, parse_omp_do, parse_omp_structured_block,
 634         parse_executable): Likewise.
 635         * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
 636         * st.c (gfc_free_statement): Likewise.
 637         * trans-openmp.c (gfc_trans_omp_clauses): Handle filter clause.
 638         (GFC_OMP_SPLIT_MASKED, GFC_OMP_MASK_MASKED): New enum values.
 639         (gfc_trans_omp_masked): New.
 640         (gfc_split_omp_clauses): Handle combined masked directives.
 641         (gfc_trans_omp_master_taskloop): Rename to ...
 642         (gfc_trans_omp_master_masked_taskloop): ... this; handle also
 643         combined masked directives.
 644         (gfc_trans_omp_parallel_master): Rename to ...
 645         (gfc_trans_omp_parallel_master_masked): ... this; handle
 646         combined masked directives.
 647         (gfc_trans_omp_directive): Handle EXEC_OMP_*_MASKED*.
 648         * trans.c (trans_code): Likewise.
 649
 650 2021-08-15  Harald Anlauf  <anlauf@gmx.de>
 651
 652         PR fortran/99351
 653         * match.c (sync_statement): Replace %v code by %e in gfc_match to
 654         allow for function references as STAT and ERRMSG arguments.
 655         * resolve.c (resolve_sync): Adjust checks of STAT= and ERRMSG= to
 656         being definable arguments.  Function references with a data
 657         pointer result are accepted.
 658         * trans-stmt.c (gfc_trans_sync): Adjust assertion.
 659
 660 2021-08-12  Tobias Burnus  <tobias@codesourcery.com>
 661
 662         * gfortran.h (gfc_omp_proc_bind_kind): Add OMP_PROC_BIND_PRIMARY.
 663         * dump-parse-tree.c (show_omp_clauses): Add TODO comment to
 664         change 'master' to 'primary' in proc_bind for OpenMP 5.1.
 665         * intrinsic.texi (OMP_LIB): Mention OpenMP 5.1; add
 666         omp_proc_bind_primary.
 667         * openmp.c (gfc_match_omp_clauses): Accept
 668         'primary' as alias for 'master'.
 669         * trans-openmp.c (gfc_trans_omp_clauses): Handle
 670         OMP_PROC_BIND_PRIMARY.
 671
 672 2021-08-11  Sandra Loosemore  <sandra@codesourcery.com>
 673
 674         * iso-c-binding.def (c_float128, c_float128_complex): Check
 675         float128_type_node instead of gfc_float128_type_node.
 676         * trans-types.c (gfc_init_kinds, gfc_build_real_type):
 677         Update comments re supported 128-bit floating-point types.
 678
 679 2021-08-11  Richard Biener  <rguenther@suse.de>
 680
 681         * trans-common.c (create_common): Set TREE_THIS_VOLATILE on the
 682         COMPONENT_REF if the field is volatile.
 683
 684 2021-08-07  Harald Anlauf  <anlauf@gmx.de>
 685
 686         PR fortran/68568
 687         * primary.c (gfc_expr_attr): Variable attribute can only be
 688         inquired when symtree is non-NULL.
 689
 690 2021-07-28  Harald Anlauf  <anlauf@gmx.de>
 691
 692         PR fortran/101564
 693         * expr.c (gfc_check_vardef_context): Add check for KIND and LEN
 694         parameter inquiries.
 695         * match.c (gfc_match): Fix comment for %v code.
 696         (gfc_match_allocate, gfc_match_deallocate): Replace use of %v code
 697         by %e in gfc_match to allow for function references as STAT and
 698         ERRMSG arguments.
 699         * resolve.c (resolve_allocate_deallocate): Avoid NULL pointer
 700         dereferences and shortcut for bad STAT and ERRMSG argument to
 701         (DE)ALLOCATE.  Remove bogus parts of checks for STAT and ERRMSG.
 702
 703 2021-07-26  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
 704             Tobias Burnus  <tobias@codesourcery.com>
 705
 706         PR fortran/93308
 707         PR fortran/93963
 708         PR fortran/94327
 709         PR fortran/94331
 710         PR fortran/97046
 711         * trans-decl.c (convert_CFI_desc): Only copy out the descriptor
 712         if necessary.
 713         * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Updated attribute
 714         handling which reflect a previous intermediate version of the
 715         standard. Only copy out the descriptor if necessary.
 716
 717 2021-07-23  Harald Anlauf  <anlauf@gmx.de>
 718
 719         PR fortran/101536
 720         * check.c (array_check): Adjust check for the case of CLASS
 721         arrays.
 722
 723 2021-07-21  Thomas Schwinge  <thomas@codesourcery.com>
 724             Joseph Myers  <joseph@codesourcery.com>
 725             Cesar Philippidis  <cesar@codesourcery.com>
 726
 727         * dump-parse-tree.c (show_attr): Update.
 728         * gfortran.h (symbol_attribute): Add 'oacc_routine_nohost' member.
 729         (gfc_omp_clauses): Add 'nohost' member.
 730         * module.c (ab_attribute): Add 'AB_OACC_ROUTINE_NOHOST'.
 731         (attr_bits, mio_symbol_attribute): Update.
 732         * openmp.c (omp_mask2): Add 'OMP_CLAUSE_NOHOST'.
 733         (gfc_match_omp_clauses): Handle 'OMP_CLAUSE_NOHOST'.
 734         (OACC_ROUTINE_CLAUSES): Add 'OMP_CLAUSE_NOHOST'.
 735         (gfc_match_oacc_routine): Update.
 736         * trans-decl.c (add_attributes_to_decl): Update.
 737         * trans-openmp.c (gfc_trans_omp_clauses): Likewise.
 738
 739 2021-07-21  Harald Anlauf  <anlauf@gmx.de>
 740
 741         PR fortran/101514
 742         * target-memory.c (gfc_interpret_derived): Size of array component
 743         of derived type can only be computed here for explicit shape.
 744         * trans-types.c (gfc_get_nodesc_array_type): Do not dereference
 745         NULL pointers.
 746
 747 2021-07-21  Tobias Burnus  <tobias@codesourcery.com>
 748
 749         * decl.c (gfc_verify_c_interop_param): Update for F2008 + F2018
 750         changes; reject unsupported bits with 'Error: Sorry,'.
 751         * trans-expr.c (gfc_conv_procedure_call): Fix condition to
 752         For using CFI descriptor with characters.
 753
 754 2021-07-18  Harald Anlauf  <anlauf@gmx.de>
 755
 756         PR fortran/101084
 757         * io.c (resolve_tag_format): Extend FORMAT check to unknown type.
 758
 759 2021-07-14  Harald Anlauf  <anlauf@gmx.de>
 760
 761         PR fortran/100949
 762         * trans-expr.c (gfc_trans_class_init_assign): Call
 763         gfc_conv_expr_present only for dummy variables.
 764
 765 2021-07-06  Thomas Koenig  <tkoenig@gcc.gnu.org>
 766
 767         PR fortran/100227
 768         * frontend-passes.c (traverse_io_block): Adjust test for
 769         when a variable is eligible for the transformation to
 770         array slice.
 771
 772 2021-06-28  Martin Sebor  <msebor@redhat.com>
 773
 774         * trans-array.c (trans_array_constructor): Replace direct uses
 775         of TREE_NO_WARNING with warning_suppressed_p, and suppress_warning.
 776         * trans-decl.c (gfc_build_qualified_array): Same.
 777         (gfc_build_dummy_array_decl): Same.
 778         (generate_local_decl): Same.
 779         (gfc_generate_function_code): Same.
 780         * trans-openmp.c (gfc_omp_clause_default_ctor): Same.
 781         (gfc_omp_clause_copy_ctor): Same.
 782         * trans-types.c (get_dtype_type_node): Same.
 783         (gfc_get_desc_dim_type): Same.
 784         (gfc_get_array_descriptor_base): Same.
 785         (gfc_get_caf_vector_type): Same.
 786         (gfc_get_caf_reference_type): Same.
 787         * trans.c (gfc_create_var_np): Same.
 788
 789 2021-06-23  Tobias Burnus  <tobias@codesourcery.com>
 790
 791         * dump-parse-tree.c (show_omp_clauses): Fix enum type used
 792         for dumping gfc_omp_defaultmap_category.
 793
 794 2021-06-23  Andre Vehreschild  <vehre@gcc.gnu.org>
 795
 796         PR fortran/100337
 797         * trans-intrinsic.c (conv_co_collective): Check stat for null ptr
 798         before dereferrencing.
 799
 800 2021-06-18  Harald Anlauf  <anlauf@gmx.de>
 801
 802         PR fortran/100283
 803         PR fortran/101123
 804         * trans-intrinsic.c (gfc_conv_intrinsic_minmax): Unconditionally
 805         convert result of min/max to result type.
 806
 807 2021-06-16  Harald Anlauf  <anlauf@gmx.de>
 808
 809         PR fortran/95501
 810         PR fortran/95502
 811         * expr.c (gfc_check_pointer_assign): Avoid NULL pointer
 812         dereference.
 813         * match.c (gfc_match_pointer_assignment): Likewise.
 814         * parse.c (gfc_check_do_variable): Avoid comparison with NULL
 815         symtree.
 816
 817 2021-06-16  Harald Anlauf  <anlauf@gmx.de>
 818
 819         Revert:
 820         2021-06-16  Harald Anlauf  <anlauf@gmx.de>
 821
 822         PR fortran/95501
 823         PR fortran/95502
 824         * expr.c (gfc_check_pointer_assign): Avoid NULL pointer
 825         dereference.
 826         * match.c (gfc_match_pointer_assignment): Likewise.
 827         * parse.c (gfc_check_do_variable): Avoid comparison with NULL
 828         symtree.
 829
 830 2021-06-16  Harald Anlauf  <anlauf@gmx.de>
 831
 832         PR fortran/95501
 833         PR fortran/95502
 834         * expr.c (gfc_check_pointer_assign): Avoid NULL pointer
 835         dereference.
 836         * match.c (gfc_match_pointer_assignment): Likewise.
 837         * parse.c (gfc_check_do_variable): Avoid comparison with NULL
 838         symtree.
 839
 840 2021-06-15  Tobias Burnus  <tobias@codesourcery.com>
 841
 842         PR fortran/92568
 843         * dump-parse-tree.c (show_omp_clauses): Update for defaultmap.
 844         * f95-lang.c (LANG_HOOKS_OMP_ALLOCATABLE_P,
 845         LANG_HOOKS_OMP_SCALAR_TARGET_P): New.
 846         * gfortran.h (enum gfc_omp_defaultmap,
 847         enum gfc_omp_defaultmap_category): New.
 848         * openmp.c (gfc_match_omp_clauses): Update defaultmap matching.
 849         * trans-decl.c (gfc_finish_decl_attrs): Set GFC_DECL_SCALAR_TARGET.
 850         * trans-openmp.c (gfc_omp_allocatable_p, gfc_omp_scalar_target_p): New.
 851         (gfc_omp_scalar_p): Take 'ptr_alloc_ok' argument.
 852         (gfc_trans_omp_clauses, gfc_split_omp_clauses): Update for
 853         defaultmap changes.
 854         * trans.h (gfc_omp_scalar_p): Update prototype.
 855         (gfc_omp_allocatable_p, gfc_omp_scalar_target_p): New.
 856         (struct lang_decl): Add scalar_target.
 857         (GFC_DECL_SCALAR_TARGET, GFC_DECL_GET_SCALAR_TARGET): New.
 858
 859 2021-06-14  Tobias Burnus  <tobias@codesourcery.com>
 860
 861         * resolve.c (resolve_variable): Remove *XCNEW used to
 862         nullify nullified memory.
 863
 864 2021-06-09  Martin Liska  <mliska@suse.cz>
 865
 866         * intrinsic.texi: Add missing @headitem to tables with a header.
 867
 868 2021-06-09  Jakub Jelinek  <jakub@redhat.com>
 869
 870         PR fortran/100965
 871         * trans-openmp.c (gfc_omp_finish_clause): Gimplify OMP_CLAUSE_SIZE.
 872
 873 2021-06-08  Tobias Burnus  <tobias@codesourcery.com>
 874
 875         PR middle-end/99928
 876         * trans-openmp.c (gfc_add_clause_implicitly): New.
 877         (gfc_split_omp_clauses): Use it.
 878         (gfc_free_split_omp_clauses): New.
 879         (gfc_trans_omp_do_simd, gfc_trans_omp_parallel_do,
 880         gfc_trans_omp_parallel_do_simd, gfc_trans_omp_distribute,
 881         gfc_trans_omp_teams, gfc_trans_omp_target, gfc_trans_omp_taskloop,
 882         gfc_trans_omp_master_taskloop, gfc_trans_omp_parallel_master): Use it.
 883
 884 2021-06-08  Martin Liska  <mliska@suse.cz>
 885
 886         * intrinsic.texi: Fix typo.
 887         * trans-expr.c (gfc_trans_pointer_assignment): Likewise.
 888
 889 2021-06-05  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
 890
 891         PR fortran/100120
 892         PR fortran/100816
 893         PR fortran/100818
 894         PR fortran/100819
 895         PR fortran/100821
 896         * trans-array.c (gfc_get_array_span): rework the way character
 897         array "span" was calculated.
 898         (gfc_conv_expr_descriptor): improve handling of character sections
 899         and unlimited polymorphic objects.
 900         * trans-expr.c (gfc_get_character_len): new function to calculate
 901         character string length.
 902         (gfc_get_character_len_in_bytes): new function to calculate
 903         character string length in bytes.
 904         (gfc_conv_scalar_to_descriptor): add call to set the "span".
 905         (gfc_trans_pointer_assignment): set "_len" and antecipate the
 906         initialization of the deferred character length hidden argument.
 907         * trans-intrinsic.c (gfc_conv_associated): set "force_no_tmp" to
 908         avoid the creation of a temporary.
 909         * trans-types.c (gfc_get_dtype_rank_type): rework type detection
 910         so that unlimited polymorphic objects get proper type infomation,
 911         also important for bind(c).
 912         (gfc_get_dtype): add argument to pass the rank if necessary.
 913         (gfc_get_array_type_bounds): cosmetic change to have character
 914         arrays called character instead of unknown.
 915         * trans-types.h (gfc_get_dtype): modify prototype.
 916         * trans.c (get_array_span): rework the way character array "span"
 917         was calculated.
 918         * trans.h (gfc_get_character_len): new prototype.
 919         (gfc_get_character_len_in_bytes): new prototype.
 920         Add "unlimited_polymorphic" flag to "gfc_se" type to signal when
 921         expression carries an unlimited polymorphic object.
 922
 923 2021-06-04  Harald Anlauf  <anlauf@gmx.de>
 924
 925         PR fortran/99839
 926         * frontend-passes.c (inline_matmul_assign): Do not inline matmul
 927         if the assignment to the resulting array if it is not of canonical
 928         type (real/integer/complex/logical).
 929
 930 2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
 931
 932         * dump-parse-tree.c (show_code_node): Handle
 933         EXEC_OMP_(TARGET_)(,PARALLEL_,TEAMS_)LOOP.
 934
 935 2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
 936
 937         * scanner.c (skip_fixed_omp_sentinel): Set openacc_flag if
 938         this is not an (OpenMP) continuation line.
 939         (skip_fixed_oacc_sentinel): Likewise for openmp_flag and OpenACC.
 940         (gfc_next_char_literal): gfc_error_now to force error for mixed OMP/ACC
 941         continuation once per location and return '\n'.
 942
 943 2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
 944
 945         PR middle-end/99928
 946         * openmp.c (gfc_match_omp_clauses): Fix typo in error message.
 947
 948 2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
 949
 950         PR middle-end/99928
 951         * dump-parse-tree.c (show_omp_clauses): Handle bind clause.
 952         (show_omp_node): Handle loop directive.
 953         * frontend-passes.c (gfc_code_walker): Likewise.
 954         * gfortran.h (enum gfc_statement): Add
 955         ST_OMP_(END_)(TARGET_)(|PARALLEL_|TEAMS_)LOOP.
 956         (enum gfc_omp_bind_type): New.
 957         (gfc_omp_clauses): Use it.
 958         (enum gfc_exec_op): Add EXEC_OMP_(TARGET_)(|PARALLEL_|TEAMS_)LOOP.
 959         * match.h (gfc_match_omp_loop, gfc_match_omp_parallel_loop,
 960         gfc_match_omp_target_parallel_loop, gfc_match_omp_target_teams_loop,
 961         gfc_match_omp_teams_loop): New.
 962         * openmp.c (enum omp_mask1): Add OMP_CLAUSE_BIND.
 963         (gfc_match_omp_clauses): Handle it.
 964         (OMP_LOOP_CLAUSES, gfc_match_omp_loop, gfc_match_omp_teams_loop,
 965         gfc_match_omp_target_teams_loop, gfc_match_omp_parallel_loop,
 966         gfc_match_omp_target_parallel_loop): New.
 967         (resolve_omp_clauses, resolve_omp_do, omp_code_to_statement,
 968         gfc_resolve_omp_directive): Handle omp loop.
 969         * parse.c (decode_omp_directive case_exec_markers, gfc_ascii_statement,
 970         parse_omp_do, parse_executable): Likewise.
 971         (parse_omp_structured_block): Remove ST_ which use parse_omp_do.
 972         * resolve.c (gfc_resolve_blocks): Add omp loop.
 973         * st.c (gfc_free_statement): Likewise.
 974         * trans-openmp.c (gfc_trans_omp_clauses): Handle bind clause.
 975         (gfc_trans_omp_do, gfc_trans_omp_parallel_do, gfc_trans_omp_distribute,
 976         gfc_trans_omp_teams, gfc_trans_omp_target, gfc_trans_omp_directive):
 977         Handle loop directive.
 978         (gfc_split_omp_clauses): Likewise; fix firstprivate/lastprivate
 979         and (in_)reduction for taskloop.
 980         * trans.c (trans_code): Handle omp loop directive.
 981
 982 2021-06-01  Tobias Burnus  <tobias@codesourcery.com>
 983
 984         PR middle-end/99928
 985         * dump-parse-tree.c (show_omp_node, show_code_node): Handle
 986         (parallel) master taskloop (simd).
 987         * frontend-passes.c (gfc_code_walker): Set in_omp_workshare
 988         to false for parallel master taskloop (simd).
 989         * gfortran.h (enum gfc_statement):
 990         Add ST_OMP_(END_)(PARALLEL_)MASTER_TASKLOOP(_SIMD).
 991         (enum gfc_exec_op): EXEC_OMP_(PARALLEL_)MASTER_TASKLOOP(_SIMD).
 992         * match.h (gfc_match_omp_master_taskloop,
 993         gfc_match_omp_master_taskloop_simd,
 994         gfc_match_omp_parallel_master_taskloop,
 995         gfc_match_omp_parallel_master_taskloop_simd): New prototype.
 996         * openmp.c (gfc_match_omp_parallel_master_taskloop,
 997         gfc_match_omp_parallel_master_taskloop_simd,
 998         gfc_match_omp_master_taskloop,
 999         gfc_match_omp_master_taskloop_simd): New.
1000         (gfc_match_omp_taskloop_simd): Permit 'reduction' clause.
1001         (resolve_omp_clauses): Handle new combined directives; remove
1002         inscan-reduction check to reduce multiple errors; add
1003         task-reduction error for 'taskloop simd'.
1004         (gfc_resolve_omp_parallel_blocks,
1005         resolve_omp_do, omp_code_to_statement,
1006         gfc_resolve_omp_directive): Handle new combined constructs.
1007         * parse.c (decode_omp_directive, next_statement,
1008         gfc_ascii_statement, parse_omp_do, parse_omp_structured_block,
1009         parse_executable): Likewise.
1010         * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
1011         * st.c (gfc_free_statement): Likewise.
1012         * trans.c (trans_code): Likewise.
1013         * trans-openmp.c (gfc_split_omp_clauses,
1014         gfc_trans_omp_directive): Likewise.
1015         (gfc_trans_omp_parallel_master): Move after gfc_trans_omp_master_taskloop;
1016         handle parallel master taskloop (simd) as well.
1017         (gfc_trans_omp_taskloop): Take gfc_exec_op as arg.
1018         (gfc_trans_omp_master_taskloop): New.
1019
1020 2021-05-30  Gerald Pfeifer  <gerald@pfeifer.com>
1021
1022         * gfortran.texi (BOZ literal constants): Fix typo.
1023
1024 2021-05-28  Tobias Burnus  <tobias@codesourcery.com>
1025
1026         * dump-parse-tree.c (show_iterator): New.
1027         (show_omp_namelist): Handle iterators.
1028         (show_omp_clauses): Handle affinity.
1029         * gfortran.h (gfc_free_omp_namelist): New union with 'udr' and new 'ns'.
1030         * match.c (gfc_free_omp_namelist): Add are to choose union element.
1031         * openmp.c (gfc_free_omp_clauses, gfc_match_omp_detach,
1032         gfc_match_omp_clause_reduction, gfc_match_omp_flush): Update
1033         call to gfc_free_omp_namelist.
1034         (gfc_match_omp_variable_list): Likewise; permit preceeding whitespace.
1035         (enum omp_mask1): Add OMP_CLAUSE_AFFINITY.
1036         (gfc_match_iterator): New.
1037         (gfc_match_omp_clauses): Use it; update call to gfc_free_omp_namelist.
1038         (OMP_TASK_CLAUSES): Add OMP_CLAUSE_AFFINITY.
1039         (gfc_match_omp_taskwait): Match depend clause.
1040         (resolve_omp_clauses): Handle affinity; update for udr/union change.
1041         (gfc_resolve_omp_directive): Resolve clauses of taskwait.
1042         * st.c (gfc_free_statement): Update gfc_free_omp_namelist call.
1043         * trans-openmp.c (gfc_trans_omp_array_reduction_or_udr): Likewise
1044         (handle_iterator): New.
1045         (gfc_trans_omp_clauses): Handle iterators for depend/affinity clause.
1046         (gfc_trans_omp_taskwait): Handle depend clause.
1047         (gfc_trans_omp_directive): Update call.
1048
1049 2021-05-27  Harald Anlauf  <anlauf@gmx.de>
1050
1051         PR fortran/100602
1052         * trans-intrinsic.c (gfc_conv_intrinsic_size): Use CLASS data
1053         attributes for CLASS arrays for generation of runtime error.
1054
1055 2021-05-27  Harald Anlauf  <anlauf@gmx.de>
1056
1057         PR fortran/100656
1058         * trans-array.c (gfc_conv_ss_startstride): Do not call check for
1059         presence of a dummy argument when a symbol actually refers to a
1060         non-dummy.
1061
1062 2021-05-25  Tobias Burnus  <tobias@codesourcery.com>
1063             Johannes Nendwich  <a08727063@unet.univie.ac.at>
1064
1065         * intrinsic.texi (GERROR, GETARGS, GETLOG, NORM2, PARITY, RANDOM_INIT,
1066         RANDOM_NUMBER): Fix typos and copy'n'paste errors.
1067
1068 2021-05-24  Tobias Burnus  <tobias@codesourcery.com>
1069
1070         PR fortran/86470
1071         * trans-expr.c (gfc_copy_class_to_class): Add unshare_expr.
1072         * trans-openmp.c (gfc_is_polymorphic_nonptr,
1073         gfc_is_unlimited_polymorphic_nonptr): New.
1074         (gfc_omp_clause_copy_ctor, gfc_omp_clause_dtor): Handle
1075         polymorphic scalars.
1076
1077 2021-05-23  Harald Anlauf  <anlauf@gmx.de>
1078
1079         PR fortran/100551
1080         * trans-expr.c (gfc_conv_procedure_call): Adjust check for
1081         implicit conversion of actual argument to an unlimited polymorphic
1082         procedure argument.
1083
1084 2021-05-23  Tobias Burnus  <tobias@codesourcery.com>
1085
1086         * intrinsic.texi (ATOMIC_ADD, ATOMIC_FETCH_ADD): Use the
1087         proper variable name in the description.
1088
1089 2021-05-22  Andre Vehreschild  <vehre@gcc.gnu.org>
1090             Steve Kargl  <kargl@gcc.gnu.org>
1091
1092         PR fortran/98301
1093         * trans-decl.c (gfc_build_builtin_function_decls): Move decl.
1094         * trans-intrinsic.c (conv_intrinsic_random_init): Use bool for
1095         lib-call of caf_random_init instead of logical (4-byte).
1096         * trans.h: Add tree var for random_init.
1097
1098 2021-05-20  Marcel Vollweiler  <marcel@codesourcery.com>
1099
1100         * openmp.c (gfc_match_omp_clauses): Support map-type-modifier 'close'.
1101
1102 2021-05-18  Tobias Burnus  <tobias@codesourcery.com>
1103
1104         PR fortran/100642
1105         * openmp.c (omp_code_to_statement): Add missing EXEC_OMP_DEPOBJ.
1106
1107 2021-05-17  Harald Anlauf  <anlauf@gmx.de>
1108
1109         PR fortran/98411
1110         * trans-decl.c (gfc_finish_var_decl): Add check for explicit SAVE
1111         attribute.
1112
1113 2021-05-17  Tobias Burnus  <tobias@codesourcery.com>
1114
1115         PR fortran/100633
1116         * resolve.c (gfc_resolve_code): Reject nonintrinsic assignments in
1117         OMP WORKSHARE.
1118
1119 2021-05-14  Tobias Burnus  <tobias@codesourcery.com>
1120
1121         * dump-parse-tree.c (show_omp_node, show_code_node): Handle
1122         EXEC_OMP_PARALLEL_MASTER.
1123         * frontend-passes.c (gfc_code_walker): Likewise.
1124         * gfortran.h (enum gfc_statement): Add ST_OMP_PARALLEL_MASTER and
1125         ST_OMP_END_PARALLEL_MASTER.
1126         (enum gfc_exec_op): Add EXEC_OMP_PARALLEL_MASTER..
1127         * match.h (gfc_match_omp_parallel_master): Handle it.
1128         * openmp.c (gfc_match_omp_parallel_master, resolve_omp_clauses,
1129         omp_code_to_statement, gfc_resolve_omp_directive): Likewise.
1130         * parse.c (decode_omp_directive, case_exec_markers,
1131         gfc_ascii_statement, parse_omp_structured_block,
1132         parse_executable): Likewise.
1133         * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
1134         * st.c (gfc_free_statement): Likewise.
1135         * trans-openmp.c (gfc_trans_omp_parallel_master,
1136         gfc_trans_omp_workshare, gfc_trans_omp_directive): Likewise.
1137         * trans.c (trans_code): Likewise.
1138
1139 2021-05-14  Tobias Burnus  <tobias@codesourcery.com>
1140
1141         * resolve.c (resolve_symbol): Handle implicit SAVE of main-program
1142         for vars in 'omp threadprivate' and 'omp declare target'.
1143
1144 2021-05-10  Martin Liska  <mliska@suse.cz>
1145
1146         * decl.c (variable_decl): Use startswith
1147         function instead of strncmp.
1148         (gfc_match_end): Likewise.
1149         * gfortran.h (gfc_str_startswith): Likewise.
1150         * module.c (load_omp_udrs): Likewise.
1151         (read_module): Likewise.
1152         * options.c (gfc_handle_runtime_check_option): Likewise.
1153         * primary.c (match_arg_list_function): Likewise.
1154         * trans-decl.c (gfc_get_symbol_decl): Likewise.
1155         * trans-expr.c (gfc_conv_procedure_call): Likewise.
1156         * trans-intrinsic.c (gfc_conv_ieee_arithmetic_function): Likewise.
1157
1158 2021-05-06  Paul Thomas  <pault@gcc.gnu.org>
1159
1160         PR fortran/46991
1161         PR fortran/99819
1162         * class.c (gfc_build_class_symbol): Remove the error that
1163         disables assumed size class arrays. Class array types that are
1164         not deferred shape or assumed rank are given a unique name and
1165         placed in the procedure namespace.
1166         * trans-array.c (gfc_trans_g77_array): Obtain the data pointer
1167         for class arrays.
1168         (gfc_trans_dummy_array_bias): Suppress the runtime error for
1169         extent violations in explicit shape class arrays because it
1170         always fails.
1171         * trans-expr.c (gfc_conv_procedure_call): Handle assumed size
1172         class actual arguments passed to non-descriptor formal args by
1173         using the data pointer, stored as the symbol's backend decl.
1174
1175 2021-05-05  Harald Anlauf  <anlauf@gmx.de>
1176
1177         PR fortran/100274
1178         * interface.c (gfc_compare_actual_formal): Continue checks after
1179         emitting warning for argument length mismatch.
1180         * trans-expr.c (gfc_conv_procedure_call): Check for NULL pointer
1181         dereference.
1182
1183 2021-05-04  Tobias Burnus  <tobias@codesourcery.com>
1184
1185         PR testsuite/100397
1186         * trans-openmp.c (gfc_trans_omp_depobj): Fix pasto in enum values.
1187
1188 2021-04-28  Tobias Burnus  <tobias@codesourcery.com>
1189
1190         * openmp.c (gfc_match_omp_variable_list): Gobble whitespace before
1191         checking whether a '%' or parenthesis-open follows as next character.
1192
1193 2021-04-28  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
1194
1195         PR fortran/82376
1196         * trans-expr.c (gfc_conv_procedure_call): Evaluate function result
1197         and then pass a pointer.
1198
1199 2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
1200             Nathan Sidwell  <nathan@codesourcery.com>
1201             Tom de Vries  <vries@codesourcery.com>
1202             Julian Brown  <julian@codesourcery.com>
1203             Kwok Cheung Yeung  <kcy@codesourcery.com>
1204
1205         * lang.opt (Wopenacc-parallelism): New.
1206
1207 2021-04-24  Harald Anlauf  <anlauf@gmx.de>
1208
1209         PR fortran/100154
1210         * check.c (variable_check): Allow function reference having a data
1211         pointer result.
1212         (arg_strlen_is_zero): New function.
1213         (gfc_check_fgetputc_sub): Add static check of character and status
1214         arguments.
1215         (gfc_check_fgetput_sub): Likewise.
1216         * intrinsic.c (add_subroutines): Fix argument name for the
1217         character argument to intrinsic subroutines fget[c], fput[c].
1218
1219 2021-04-24  Harald Anlauf  <anlauf@gmx.de>
1220
1221         PR fortran/100218
1222         * expr.c (gfc_check_vardef_context): Extend check to allow pointer
1223         from a function reference.
1224
1225 2021-04-22  Martin Liska  <mliska@suse.cz>
1226
1227         PR testsuite/100159
1228         PR testsuite/100192
1229         * frontend-passes.c (optimize_expr): Fix typos and missing comments.
1230
1231 2021-04-22  Michael Meissner  <meissner@linux.ibm.com>
1232
1233         PR fortran/96983
1234         * trans-intrinsic.c (build_round_expr): If int type is larger than
1235         long long, do the round and convert to the integer type.  Do not
1236         try to find a floating point type the exact size of the integer
1237         type.
1238
1239 2021-04-21  Tobias Burnus  <tobias@codesourcery.com>
1240
1241         * dump-parse-tree.c (show_omp_namelist): Handle depobj + mutexinoutset
1242         in the depend clause.
1243         (show_omp_clauses, show_omp_node, show_code_node): Handle depobj.
1244         * gfortran.h (enum gfc_statement): Add ST_OMP_DEPOBJ.
1245         (enum gfc_omp_depend_op): Add OMP_DEPEND_UNSET,
1246         OMP_DEPEND_MUTEXINOUTSET and OMP_DEPEND_DEPOBJ.
1247         (gfc_omp_clauses): Add destroy, depobj_update and depobj.
1248         (enum gfc_exec_op): Add EXEC_OMP_DEPOBJ
1249         * match.h (gfc_match_omp_depobj): Match 'omp depobj'.
1250         * openmp.c (gfc_match_omp_clauses): Add depobj + mutexinoutset
1251         to depend clause.
1252         (gfc_match_omp_depobj, resolve_omp_clauses, gfc_resolve_omp_directive):
1253         Handle 'omp depobj'.
1254         * parse.c (decode_omp_directive, next_statement, gfc_ascii_statement):
1255         Likewise.
1256         * resolve.c (gfc_resolve_code): Likewise.
1257         * st.c (gfc_free_statement): Likewise.
1258         * trans-openmp.c (gfc_trans_omp_clauses): Handle depobj + mutexinoutset
1259         in the depend clause.
1260         (gfc_trans_omp_depobj, gfc_trans_omp_directive): Handle EXEC_OMP_DEPOBJ.
1261         * trans.c (trans_code): Likewise.
1262
1263 2021-04-20  Paul Thomas  <pault@gcc.gnu.org>
1264
1265         PR fortran/100110
1266         * trans-decl.c (gfc_get_symbol_decl): Replace test for host
1267         association with a check that the current and symbol namespaces
1268         are the same.
1269
1270 2021-04-19  Thomas Schwinge  <thomas@codesourcery.com>
1271
1272         * lang.opt (fopenacc-kernels=): Remove.
1273
1274 2021-04-16  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
1275
1276         PR fortran/100094
1277         * trans-array.c (gfc_trans_deferred_array): Add code to initialize
1278         pointers and allocatables with correct TKR parameters.
1279
1280 2021-04-16  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
1281
1282         PR fortran/100018
1283         * resolve.c: Add association check before de-referencing pointer.
1284
1285 2021-04-16  Harald Anlauf  <anlauf@gmx.de>
1286             Paul Thomas  <pault@gcc.gnu.org>
1287
1288         PR fortran/63797
1289         * module.c (write_symtree): Do not write interface of intrinsic
1290         procedure to module file for F2003 and newer.
1291
1292 2021-04-15  Paul Thomas  <pault@gcc.gnu.org>
1293
1294         PR fortran/99307
1295         * symbol.c: Remove trailing white space.
1296         * trans-array.c (gfc_trans_create_temp_array): Create a class
1297         temporary for class expressions and assign the new descriptor
1298         to the data field.
1299         (build_class_array_ref): If the class expr can be extracted,
1300         then use that for 'decl'. Class function results are reliably
1301         handled this way. Call gfc_find_and_cut_at_last_class_ref to
1302         eliminate largely redundant code. Remove dead code and recast
1303         the rest of the code to extract 'decl' for remaining cases.
1304         Call gfc_build_spanned_array_ref.
1305         (gfc_alloc_allocatable_for_assignment): Use class descriptor
1306         element length for 'elemsize1'. Eliminate repeat set of dtype
1307         for class expressions.
1308         * trans-expr.c (gfc_find_and_cut_at_last_class_ref): Include
1309         additional code from build_class_array_ref, and use optional
1310         gfc_typespec pointer argument.
1311         (gfc_trans_scalar_assign): Make use of pre and post blocks for
1312         all class expressions.
1313         * trans.c (get_array_span): For unlimited polymorphic exprs
1314         multiply the span by the value of the _len field.
1315         (gfc_build_spanned_array_ref): New function.
1316         (gfc_build_array_ref): Call gfc_build_spanned_array_ref and
1317         eliminate repeated code.
1318         * trans.h: Add arg to gfc_find_and_cut_at_last_class_ref and
1319         add prototype for gfc_build_spanned_array_ref.
1320
1321 2021-04-14  Martin Liska  <mliska@suse.cz>
1322
1323         * intrinsic.texi: The table has first column empty and it makes
1324         trouble when processing makeinfo --xml output.
1325
1326 2021-04-09  Tobias Burnus  <tobias@codesourcery.com>
1327
1328         PR fortran/99817
1329         * trans-types.c (gfc_get_function_type): Also generate hidden
1330         coarray argument for character arguments.
1331
1332 2021-04-03  Paul Thomas  <pault@gcc.gnu.org>
1333
1334         PR fortran/99818
1335         * interface.c (compare_parameter): The codimension attribute is
1336         applied to the _data field of class formal arguments.
1337
1338 2021-04-01  Harald Anlauf  <anlauf@gmx.de>
1339
1340         PR fortran/99840
1341         * simplify.c (gfc_simplify_transpose): Properly initialize
1342         resulting shape.
1343
1344 2021-03-28  Paul Thomas  <pault@gcc.gnu.org>
1345
1346         PR fortran/99602
1347         * trans-expr.c (gfc_conv_procedure_call): Use the _data attrs
1348         for class expressions and detect proc pointer evaluations by
1349         the non-null actual argument list.
1350
1351 2021-03-27  Steve Kargl  <kargl@gcc.gnu.org>
1352
1353         * misc.c (gfc_typename): Fix off-by-one in buffer sizes.
1354
1355 2021-03-26  Tobias Burnus  <tobias@codesourcery.com>
1356
1357         PR fortran/99651
1358         * intrinsic.c (gfc_intrinsic_func_interface): Set
1359         attr.proc = PROC_INTRINSIC if FL_PROCEDURE.
1360
1361 2021-03-24  Tobias Burnus  <tobias@codesourcery.com>
1362
1363         PR fortran/99369
1364         * resolve.c (resolve_operator): Make 'msg' buffer larger
1365         and use snprintf.
1366
1367 2021-03-23  Tobias Burnus  <tobias@codesourcery.com>
1368
1369         PR fortran/93660
1370         * trans-decl.c (build_function_decl): Add comment;
1371         increment hidden_typelist for caf_token/caf_offset.
1372         * trans-types.c (gfc_get_function_type): Add comment;
1373         add missing caf_token/caf_offset args.
1374
1375 2021-03-22  Tobias Burnus  <tobias@codesourcery.com>
1376
1377         PR fortran/99688
1378         * match.c (select_type_set_tmp, gfc_match_select_type,
1379         gfc_match_select_rank): Fix 'name' buffersize to avoid out of bounds.
1380         * resolve.c (resolve_select_type): Likewise.
1381
1382 2021-03-19  Thomas Koenig  <tkoenig@gcc.gnu.org>
1383
1384         * frontend-passes.c (inline_limit_check): Add rank_a
1385         argument. If a is rank 1, set the second dimension to 1.
1386         (inline_matmul_assign): Pass rank_a argument to inline_limit_check.
1387         (call_external_blas): Likewise.
1388
1389 2021-03-15  Thomas Koenig  <tkoenig@gcc.gnu.org>
1390
1391         PR fortran/99345
1392         * frontend-passes.c (doloop_contained_procedure_code):
1393         Properly handle EXEC_IOLENGTH.
1394
1395 2021-03-15  Paul Thomas  <pault@gcc.gnu.org>
1396
1397         PR fortran/99545
1398         * trans-stmt.c (gfc_trans_allocate): Mark the initialization
1399         assignment by setting init_flag.
1400
1401 2021-03-14  Harald Anlauf  <anlauf@gmx.de>
1402             Paul Thomas  <pault@gcc.gnu.org>
1403
1404         * trans-expr.c (gfc_conv_procedure_call): Fix runtime checks for
1405         CLASS arguments.
1406         * trans-intrinsic.c (gfc_conv_intrinsic_size): Likewise.
1407
1408 2021-03-13  Paul Thomas  <pault@gcc.gnu.org>
1409
1410         PR fortran/99125
1411         * trans-array.c (gfc_conv_expr_descriptor): For deferred length
1412         length components use the ss_info string length instead of
1413         gfc_get_expr_charlen. Make sure that the deferred string length
1414         is a variable before assigning to it. Otherwise use the expr.
1415         * trans-expr.c (gfc_conv_string_length): Make sure that the
1416         deferred string length is a variable before assigning to it.
1417
1418 2021-03-12  Tobias Burnus  <tobias@codesourcery.com>
1419
1420         PR fortran/99514
1421         * resolve.c (resolve_symbol): Accept vars which are in DATA
1422         and hence (either) implicit SAVE (or in common).
1423
1424 2021-03-10  Harald Anlauf  <anlauf@gmx.de>
1425
1426         PR fortran/99205
1427         * data.c (gfc_assign_data_value): Reject non-constant character
1428         length for lvalue.
1429         * trans-array.c (gfc_conv_array_initializer): Restrict loop to
1430         elements which are defined to avoid NULL pointer dereference.
1431
1432 2021-03-10  Tobias Burnus  <tobias@codesourcery.com>
1433
1434         * intrinsic.texi (MIN): Correct 'maximum' to 'minimum'.
1435
1436 2021-03-10  Eric Botcazou  <ebotcazou@adacore.com>
1437
1438         PR fortran/96983
1439         * trans-intrinsic.c (build_round_expr): Do not implicitly assume
1440         that __float128 is the 128-bit floating-point type.
1441
1442 2021-03-08  Harald Anlauf  <anlauf@gmx.de>
1443
1444         PR fortran/49278
1445         * data.c (gfc_assign_data_value): Reject variable with PARAMETER
1446         attribute in DATA statement.
1447
1448 2021-03-05  Tobias Burnus  <tobias@codesourcery.com>
1449
1450         PR fortran/99355
1451         PR fortran/57871
1452         * invoke.texi (-freal{4,8}-real-*): Extend description.
1453         * primary.c (match_real_constant): Also promote real literals
1454         with '_kind' number.
1455
1456 2021-03-04  Tobias Burnus  <tobias@codesourcery.com>
1457
1458         PR fortran/99355
1459         * decl.c (gfc_match_old_kind_spec, gfc_match_kind_spec): Avoid
1460         redoing kind conversions.
1461         * primary.c (match_real_constant): Likewise.
1462
1463 2021-02-28  Jakub Jelinek  <jakub@redhat.com>
1464
1465         PR fortran/99303
1466         * openmp.c (gfc_omp_requires_add_clause): Fix up diagnostic message
1467         wordings.
1468         (resolve_omp_clauses): Likewise.
1469
1470 2021-02-28  Jakub Jelinek  <jakub@redhat.com>
1471
1472         PR fortran/99300
1473         * frontend-passes.c (doloop_code): Replace double space in diagnostics
1474         with a single space.
1475
1476 2021-02-24  Paul Thomas  <pault@gcc.gnu.org>
1477
1478         PR fortran/98342
1479         * trans-expr.c (gfc_conv_derived_to_class): Add optional arg.
1480         'derived_array' to hold the fixed, parmse expr in the case of
1481         assumed rank formal arguments. Deal with optional arguments.
1482         (gfc_conv_procedure_call): Null 'derived' array for each actual
1483         argument. Add its address to the call to gfc_conv_derived_to_
1484         class. Access the 'data' field of scalar descriptors before
1485         deallocating allocatable components. Also strip NOPs before the
1486         calls to gfc_deallocate_alloc_comp. Use 'derived' array as the
1487         input to gfc_deallocate_alloc_comp if it is available.
1488         * trans.h : Include the optional argument 'derived_array' to
1489         the prototype of gfc_conv_derived_to_class. The default value
1490         is NULL_TREE.
1491
1492 2021-02-23  Paul Thomas  <pault@gcc.gnu.org>
1493
1494         PR fortran/99124
1495         * resolve.c (resolve_fl_procedure): Include class results in
1496         the test for F2018, C15100.
1497         * trans-array.c (get_class_info_from_ss): Do not use the saved
1498         descriptor to obtain the class expression for variables. Use
1499         gfc_get_class_from_expr instead.
1500
1501 2021-02-23  Harald Anlauf  <anlauf@gmx.de>
1502
1503         PR fortran/99206
1504         * simplify.c (gfc_simplify_reshape): Set string length for
1505         character arguments.
1506
1507 2021-02-22  Tobias Burnus  <tobias@codesourcery.com>
1508
1509         PR fortran/99171
1510         * trans-openmp.c (gfc_omp_is_optional_argument): Regard optional
1511         dummy procs as nonoptional as no special treatment is needed.
1512
1513 2021-02-21  Harald Anlauf  <anlauf@gmx.de>
1514
1515         * trans-expr.c (gfc_conv_procedure_call): Do not add clobber to
1516         allocatable intent(out) argument.
1517
1518 2021-02-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
1519
1520         PR fortran/98686
1521         * match.c (gfc_match_namelist): If BT_UNKNOWN, check for
1522         IMPLICIT NONE and and issue an error, otherwise set the type
1523         to its IMPLICIT type so that any subsequent use of objects will
1524         will confirm their types.
1525
1526 2021-02-19  Harald Anlauf  <anlauf@gmx.de>
1527
1528         * symbol.c (gfc_add_flavor): Reverse order of conditions.
1529
1530 2021-02-19  Tobias Burnus  <tobias@codesourcery.com>
1531
1532         PR fortran/99010
1533         * dependency.c (gfc_dep_resolver): Fix coarray handling.
1534
1535 2021-02-19  Tobias Burnus  <tobias@codesourcery.com>
1536
1537         PR fortran/99146
1538         * interface.c:
1539
1540 2021-02-19  Tobias Burnus  <tobias@codesourcery.com>
1541
1542         PR fortran/99027
1543         * simplify.c (simplify_bound_dim): Honor DIMEN_ELEMENT
1544         when using dim=.
1545
1546 2021-02-17  Julian Brown  <julian@codesourcery.com>
1547
1548         * openmp.c (resolve_omp_clauses): Disallow selecting components
1549         of arrays of derived type.
1550
1551 2021-02-17  Julian Brown  <julian@codesourcery.com>
1552
1553         * trans-openmp.c (gfc_trans_omp_clauses): Handle element selection
1554         for arrays of derived types.
1555
1556 2021-02-16  Tobias Burnus  <tobias@codesourcery.com>
1557
1558         * expr.c (gfc_is_simplify_contiguous): Handle REF_INQUIRY, i.e.
1559         %im and %re which are EXPR_VARIABLE.
1560         * openmp.c (resolve_omp_clauses): Diagnose %re/%im explicitly.
1561
1562 2021-02-16  Tobias Burnus  <tobias@codesourcery.com>
1563
1564         PR fortran/99111
1565         * io.c (resolve_tag_format): Reject BT_DERIVED/CLASS/VOID
1566         as (array-valued) FORMAT tag.
1567
1568 2021-02-12  Tobias Burnus  <tobias@codesourcery.com>
1569
1570         PR fortran/99043
1571         * trans-expr.c (gfc_conv_procedure_call): Don't reset
1572         rank of assumed-rank array.
1573
1574 2021-02-11  Paul Thomas  <pault@gcc.gnu.org>
1575
1576         PR fortran/98897
1577         * match.c (gfc_match_call): Include associate names as possible
1578         entities with typebound subroutines. The target needs to be
1579         resolved for the type.
1580
1581 2021-02-11  Paul Thomas  <pault@gcc.gnu.org>
1582
1583         PR fortran/99060
1584         * primary.c (gfc_match_varspec): Test for non-null 'previous'
1585         before using its name in the error message.
1586
1587 2021-02-11  Tobias Burnus  <tobias@codesourcery.com>
1588
1589         * intrinsic.texi (FINDLOC): Add 'MASK' to argument table.
1590         (MAXLOC, MAXVAL, MINLOC, MINVAL): For 'MASK', remove 'an
1591         array' as scalars are also permitted.
1592
1593 2021-02-10  Julian Brown  <julian@codesourcery.com>
1594
1595         PR fortran/98979
1596         * openmp.c (resolve_omp_clauses): Omit OpenACC update in
1597         contiguity check and stride-specified error.
1598
1599 2021-02-04  Julian Brown  <julian@codesourcery.com>
1600
1601         * openmp.c (resolve_omp_clauses): Omit OpenACC update in
1602         contiguity check and stride-specified error.
1603
1604 2021-02-04  Julian Brown  <julian@codesourcery.com>
1605
1606         * trans-openmp.c (gfc_trans_omp_clauses): Use class_pointer attribute
1607         for BT_CLASS.
1608
1609 2021-02-04  Julian Brown  <julian@codesourcery.com>
1610
1611         * trans-openmp.c (gfc_trans_omp_clauses): Fix dereferencing for
1612         BT_DERIVED members.
1613
1614 2021-02-04  Tobias Burnus  <tobias@codesourcery.com>
1615
1616         * openmp.c (resolve_omp_clauses): Explicitly diagnose
1617         substrings as not permitted.
1618
1619 2021-02-03  Jeff Law  <law@redhat.com>
1620
1621         * intrinsic.texi (ANINT): Fix typo.
1622
1623 2021-02-03  Tobias Burnus  <tobias@codesourcery.com>
1624
1625         PR fortran/98913
1626         * dependency.c (gfc_dep_resolver): Treat local access
1627         to coarrays like any array access in dependency analysis.
1628
1629 2021-01-28  Harald Anlauf  <anlauf@gmx.de>
1630
1631         PR fortran/86470
1632         * trans.c (gfc_call_malloc): Allocate area of size 1 if passed
1633         size is NULL (as documented).
1634
1635 2021-01-27  Paul Thomas  <pault@gcc.gnu.org>
1636
1637         PR fortran/93924
1638         PR fortran/93925
1639         * trans-expr.c (gfc_conv_procedure_call): Suppress the call to
1640         gfc_conv_intrinsic_to_class for unlimited polymorphic procedure
1641         pointers.
1642         (gfc_trans_assignment_1): Similarly suppress class assignment
1643         for class valued procedure pointers.
1644
1645 2021-01-27  Paul Thomas  <pault@gcc.gnu.org>
1646
1647         PR fortran/98472
1648         * trans-array.c (gfc_conv_expr_descriptor): Include elemental
1649         procedure pointers in the assert under the comment 'elemental
1650         function' and eliminate the second, spurious assert.
1651
1652 2021-01-25  Harald Anlauf  <anlauf@gmx.de>
1653
1654         PR fortran/70070
1655         * data.c (create_character_initializer): Check substring indices
1656         against bounds.
1657         (gfc_assign_data_value): Catch error returned from
1658         create_character_initializer.
1659
1660 2021-01-25  Tobias Burnus  <tobias@codesourcery.com>
1661
1662         * intrinsic.texi (CO_BROADCAST, CO_MIN, CO_REDUCE, CO_SUM): Fix typos.
1663
1664 2021-01-25  Steve Kargl  <kargl@gcc.gnu.org>
1665
1666         PR fortran/98517
1667         * resolve.c (resolve_charlen): Check that length expression is
1668         present before testing for scalar/integer..
1669
1670 2021-01-22  Paul Thomas  <pault@gcc.gnu.org>
1671
1672         PR fortran/98565
1673         * trans-intrinsic.c (gfc_conv_associated): Do not add a _data
1674         component for scalar class function targets. Instead, fix the
1675         function result and access the _data from that.
1676
1677 2021-01-21  Jorge D'Elia  <jdelia@cimec.unl.edu.ar>
1678
1679         * intrinsic.texi (CO_MAX): Fix typo.
1680
1681 2021-01-21  Paul Thomas  <pault@gcc.gnu.org>
1682
1683         PR fortran/96320
1684         * decl.c (gfc_match_modproc): It is not an error to find a
1685         module procedure declaration within a contains block.
1686         * expr.c (gfc_check_vardef_context): Pure procedure result is
1687         assignable. Change 'own_scope' accordingly.
1688         * resolve.c (resolve_typebound_procedure): A procedure that
1689         has the module procedure attribute is almost certainly a
1690         module procedure, whatever its interface.
1691
1692 2021-01-19  Tobias Burnus  <tobias@codesourcery.com>
1693
1694         PR fortran/98476
1695         * openmp.c (resolve_omp_clauses): Change use_device_ptr
1696         to use_device_addr for unless type(c_ptr); check all
1697         list item for is_device_ptr.
1698
1699 2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>
1700
1701         * dump-parse-tree.c (show_omp_clauses): Handle detach clause.
1702         * frontend-passes.c (gfc_code_walker): Walk detach expression.
1703         * gfortran.h (struct gfc_omp_clauses): Add detach field.
1704         (gfc_c_intptr_kind): New.
1705         * openmp.c (gfc_free_omp_clauses): Free detach clause.
1706         (gfc_match_omp_detach): New.
1707         (enum omp_mask1): Add OMP_CLAUSE_DETACH.
1708         (enum omp_mask2): Remove OMP_CLAUSE_DETACH.
1709         (gfc_match_omp_clauses): Handle OMP_CLAUSE_DETACH for OpenMP.
1710         (OMP_TASK_CLAUSES): Add OMP_CLAUSE_DETACH.
1711         (resolve_omp_clauses): Prevent use of detach with mergeable and
1712         overriding the data sharing mode of the event handle.
1713         * trans-openmp.c (gfc_trans_omp_clauses): Handle detach clause.
1714         * trans-types.c (gfc_c_intptr_kind): New.
1715         (gfc_init_kinds): Initialize gfc_c_intptr_kind.
1716         * types.def
1717         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
1718         to...
1719         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
1720         ...this.  Add extra argument.
1721
1722 2021-01-14  Harald Anlauf  <anlauf@gmx.de>
1723
1724         * gfortran.h (gfc_resolve_substring): Add prototype.
1725         * primary.c (match_string_constant): Simplify substrings with
1726         constant starting and ending points.
1727         * resolve.c: Rename resolve_substring to gfc_resolve_substring.
1728         (gfc_resolve_ref): Use renamed function gfc_resolve_substring.
1729
1730 2021-01-14  Harald Anlauf  <anlauf@gmx.de>
1731
1732         PR fortran/98661
1733         * resolve.c (resolve_component): Derived type components with
1734         ALLOCATABLE or POINTER attribute shall have a deferred shape.
1735
1736 2021-01-14  Harald Anlauf  <anlauf@gmx.de>
1737
1738         Revert:
1739         2021-01-14  Harald Anlauf  <anlauf@gmx.de>
1740
1741         PR fortran/98661
1742         * resolve.c (resolve_component): Derived type components with
1743         ALLOCATABLE or POINTER attribute shall have a deferred shape.
1744
1745 2021-01-14  Harald Anlauf  <anlauf@gmx.de>
1746
1747         PR fortran/98661
1748         * resolve.c (resolve_component): Derived type components with
1749         ALLOCATABLE or POINTER attribute shall have a deferred shape.
1750
1751 2021-01-08  Paul Thomas  <pault@gcc.gnu.org>
1752
1753         PR fortran/93794
1754         * trans-expr.c (gfc_conv_component_ref): Remove the condition
1755         that deferred character length components only be allocatable.
1756
1757 2021-01-08  Paul Thomas  <pault@gcc.gnu.org>
1758
1759         PR fortran/98458
1760         * simplify.c (is_constant_array_expr): If an array constructor
1761         expression has elements other than constants or structures, try
1762         fixing the expression with gfc_reduce_init_expr. Also, if shape
1763         is NULL, obtain the array size and set it.
1764
1765 2021-01-07  Paul Thomas  <pault@gcc.gnu.org>
1766
1767         PR fortran/93701
1768         * resolve.c (find_array_spec): Put static prototype for
1769         resolve_assoc_var before this function and call for associate
1770         variables.
1771
1772 2021-01-06  Harald Anlauf  <anlauf@gmx.de>
1773
1774         * resolve.c (resolve_component): Add check for valid CLASS
1775         reference before trying to access CLASS data.
1776
1777 2021-01-04  Martin Liska  <mliska@suse.cz>
1778
1779         * ChangeLog-2018: Remove duplicate ChangeLog entries.
1780
1781 2021-01-01  Harald Anlauf  <anlauf@gmx.de>
1782
1783         * class.c (gfc_find_vtab): Add check on attribute is_class.
1784
1785 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1786
1787         * gfortranspec.c (lang_specific_driver): Update copyright notice
1788         dates.
1789         * gfc-internals.texi: Bump @copying's copyright year.
1790         * gfortran.texi: Ditto.
1791         * intrinsic.texi: Ditto.
1792         * invoke.texi: Ditto.
1793
1794 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1795
1796         * ChangeLog-2020: Rotate ChangeLog.  New file.
1797
1798 \f
1799 Copyright (C) 2021 Free Software Foundation, Inc.
1800
1801 Copying and distribution of this file, with or without modification,
1802 are permitted in any medium without royalty provided the copyright
1803 notice and this notice are preserved.