gcc/cp/ChangeLog

   1 2018-02-01  Marek Polacek  <polacek@redhat.com>
   2
   3         PR c++/84125
   4         * typeck.c (build_address): Relax the assert when
   5         processing_template_decl.
   6
   7 2018-02-01  Jason Merrill  <jason@redhat.com>
   8
   9         PR c++/84126 - ICE with variadic generic lambda
  10         PR c++/84036
  11         PR c++/82249
  12         * pt.c (tsubst_pack_expansion): Handle function parameter_packs in
  13         PACK_EXPANSION_EXTRA_ARGS.
  14
  15 2018-02-01  Paolo Carlini  <paolo.carlini@oracle.com>
  16
  17         PR c++/83796
  18         * call.c (convert_like_real): If w're initializing from {} explicitly
  19         call abstract_virtuals_error_sfinae.
  20
  21 2018-01-31  Jason Merrill  <jason@redhat.com>
  22             Jakub Jelinek  <jakub@redhat.com>
  23
  24         PR c++/83993
  25         * constexpr.c (cxx_eval_outermost_constant_expr): Build NOP_EXPR
  26         around non-constant ADDR_EXPRs rather than clearing TREE_CONSTANT
  27         on ADDR_EXPR.
  28
  29 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
  30
  31         PR c++/83993
  32         * constexpr.c (diag_array_subscript): Emit different diagnostics
  33         if TYPE_DOMAIN (arraytype) is NULL.
  34         (cxx_eval_array_reference, cxx_eval_store_expression): For arrays
  35         with NULL TYPE_DOMAIN use size_zero_node as nelts.
  36
  37 2018-01-31  Paolo Carlini  <paolo.carlini@oracle.com>
  38
  39         PR c++/84092
  40         * semantics.c (finish_qualified_id_expr): When handling an
  41         UNBOUND_CLASS_TEMPLATE only adjust qualifying_class and expr.
  42
  43 2018-01-31  Marek Polacek  <polacek@redhat.com>
  44
  45         PR c++/84138
  46         * cp-gimplify.c (cp_fold): Check if X is an error node before
  47         calling useless_type_conversion_p.
  48
  49 2018-01-30  Jason Merrill  <jason@redhat.com>
  50
  51         PR c++/84091 - ICE with local class in lambda in template.
  52         * decl2.c (determine_visibility): Look for outer containing template
  53         instantiation.
  54
  55         PR c++/84098 - ICE with lambda in template NSDMI.
  56         * pt.c (instantiate_class_template_1): Ignore more lambdas.
  57
  58 2018-01-29  Jason Merrill  <jason@redhat.com>
  59
  60         PR c++/68810 - wrong location for reinterpret_cast error.
  61         * cvt.c (cp_convert_to_pointer): Always build a CONVERT_EXPR when
  62         !dofold.
  63
  64 2018-01-29  Marek Polacek  <polacek@redhat.com>
  65
  66         PR c++/83996
  67         * constexpr.c (cxx_fold_indirect_ref): Compute ((foo *)&fooarray)[1]
  68         => fooarray[1] in offset_int.
  69
  70 2018-01-29  Jason Merrill  <jason@redhat.com>
  71
  72         PR c++/83942 - wrong unused warning with static_cast.
  73         * cvt.c (ocp_convert): Call mark_rvalue_use.
  74
  75 2018-01-26  Jason Merrill  <jason@redhat.com>
  76
  77         PR c++/83956 - wrong dtor error with anonymous union
  78         * method.c (walk_field_subobs): Variant members only affect
  79         deletedness.
  80         (maybe_explain_implicit_delete): Pass &deleted_p for diagnostic.
  81
  82         PR c++/84036 - ICE with variadic capture.
  83         PR c++/82249
  84         * pt.c (tsubst_pack_expansion): When optimizing a simple
  85         substitution, pull a single pack expansion out of its pack.
  86
  87         PR c++/82514 - ICE with local class in generic lambda.
  88         * pt.c (regenerated_lambda_fn_p): Remove.
  89         (enclosing_instantiation_of): Don't use it.
  90         (tsubst_function_decl): Call enclosing_instantiation_of.
  91
  92         * pt.c (lookup_template_class_1): Add sanity check.
  93         * name-lookup.c (do_pushtag): Don't add closures to local_classes.
  94
  95 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
  96
  97         PR c++/84031
  98         * decl.c (find_decomp_class_base): Ignore unnamed bitfields.  Ignore
  99         recursive calls that return ret.
 100         (cp_finish_decomp): Ignore unnamed bitfields.
 101
 102 2018-01-23  Jason Merrill  <jason@redhat.com>
 103
 104         PR c++/82249 - wrong mismatched pack length error.
 105         * pt.c (extract_fnparm_pack, tsubst_pack_expansion): Handle
 106         unsubstituted function parameter pack.
 107
 108 2018-01-23  Paolo Carlini  <paolo.carlini@oracle.com>
 109
 110         PR c++/83921
 111         * decl.c (check_for_uninitialized_const_var): Not static; add
 112         bool and tsubst_flags_t parameters; adjust to be used both in
 113         constexpr context and not.
 114         * constexpr.c (potential_constant_expression_1): Use the above.
 115         * cp-tree.h (check_for_uninitialized_const_var): Declare.
 116
 117 2018-01-23  Jason Merrill  <jason@redhat.com>
 118
 119         PR c++/83947 - ICE with auto declarations.
 120         * pt.c (do_auto_deduction): Don't deduce from an auto decl.
 121         * decl.c (undeduced_auto_decl): Limit to vars and fns.
 122
 123 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
 124
 125         PR c++/83974
 126         * pt.c (tsubst_copy_and_build) <CONSTRUCTOR>: Remove early bailout
 127         for pointer to member function types.
 128
 129 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
 130
 131         PR sanitizer/83987
 132         * tree.c (cp_free_lang_data): Change DECL_VALUE_EXPR of
 133         DECL_OMP_PRIVATIZED_MEMBER vars to error_mark_node.
 134
 135 2018-01-23  Nathan Sidwell  <nathan@acm.org>
 136
 137         PR c++/83988
 138         * pt.c (tsubst_baselink): Remove optype assert.
 139         * ptree.c (cxx_print_xnode): <case BASELINK> Print BASELINK_OPTYPE.
 140
 141 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
 142
 143         PR c++/83958
 144         * decl.c (cp_finish_decomp): Diagnose if reference structure binding
 145         refers to incomplete type.
 146
 147 2018-01-23  Nathan Sidwell  <nathan@acm.org>
 148
 149         Deprecate ARM-era for scope handling
 150         * decl.c (poplevel): Flag_new_for_scope is a boolean-like.
 151         (cxx_init_decl_processing): Deprecate flag_new_for_scope being
 152         cleared.
 153         * name-lookup.c (check_for_out_of_scope_variable): Deprecate and
 154         cleanup handling.
 155         * semantics.c (begin_for_scope): Flag_new_for_scope is
 156         boolean-like.
 157         (finish_for_stmt, begin_range_for_stmt): Likewise.
 158
 159 2018-01-22  Jason Merrill  <jason@redhat.com>
 160
 161         PR c++/83720
 162         * decl2.c (determine_visibility): Fix template_decl handling
 163         instead of blocking it.
 164
 165         PR c++/83720 - ICE with lambda and LTO.
 166         * decl2.c (determine_visibility): Clear template_decl for
 167         function-scope decls.  Propagate anonymous linkage from containing
 168         function.
 169
 170 2018-01-22  Marek Polacek  <polacek@redhat.com>
 171
 172         PR c++/81933
 173         * typeck2.c (split_nonconstant_init_1): Return false if we didn't
 174         split out anything.
 175
 176 2018-01-22  Ville Voutilainen  <ville.voutilainen@gmail.com>
 177
 178         PR c++/83895
 179         * decl.c (grokdeclarator): Don't diagnose extra parens
 180         on typedefs.
 181
 182 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
 183
 184         PR c++/81167
 185         * call.c (joust): Use TREE_TYPE (source) if source is
 186         a POINTER_TYPE_P rather than if ! DECL_CONSTRUCTOR_P (w->fn).
 187
 188         PR c++/83919
 189         * typeck.c (convert_for_assignment): Suppress warn_ignored_qualifiers
 190         for direct enum init.
 191         * decl.c (reshape_init): Likewise.
 192
 193 2018-01-19  Marek Polacek  <polacek@redhat.com>
 194
 195         * constexpr.c (fold_simple): Simplify.
 196
 197 2018-01-18  Jason Merrill  <jason@redhat.com>
 198
 199         PR c++/83714
 200         * search.c (any_dependent_bases_p): Handle null TREE_BINFO.
 201         * pt.c (instantiation_dependent_scope_ref_p): True if
 202         any_dependent_bases_p.
 203
 204 2018-01-18  Paolo Carlini  <paolo.carlini@oracle.com>
 205
 206         * cp-tree.h: Fix comment typo (DECL_NON_TRIVIALLY_INITIALIZED_P
 207         vs DECL_NONTRIVIALLY_INITIALIZED_P).
 208
 209 2018-01-18  Jason Merrill  <jason@redhat.com>
 210
 211         PR c++/82461 - constexpr list-initialized member
 212         * constexpr.c (potential_constant_expression_1): Check
 213         TARGET_EXPR_DIRECT_INIT_P.
 214
 215 2018-01-18  Paolo Carlini  <paolo.carlini@oracle.com>
 216
 217         PR c++/81013
 218         * decl.c (xref_basetypes): Early return upon error about derived
 219         union.
 220
 221 2018-01-18  Nathan Sidwell  <nathan@acm.org>
 222
 223         PR c++/83160
 224         * cp-tree.h (mark_use): Declare.
 225         * expr.c (mark_use): Make extern.
 226         * call.c (direct_reference_binding): Set inner conv's
 227         rvaluedness_matches_p, if it is an identity.
 228         (convert_like_real): Mark lvalue or rvalue use for identity as
 229         rvaledness_matches_p demands.
 230
 231 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
 232
 233         PR c++/83824
 234         * parser.c (attr_chainon): New function.
 235         (cp_parser_label_for_labeled_statement, cp_parser_decl_specifier_seq,
 236         cp_parser_namespace_definition, cp_parser_init_declarator,
 237         cp_parser_type_specifier_seq, cp_parser_parameter_declaration,
 238         cp_parser_gnu_attributes_opt): Use it.
 239         (cp_parser_member_declaration, cp_parser_objc_class_ivars,
 240         cp_parser_objc_struct_declaration): Likewise.  Don't reset
 241         prefix_attributes if attributes is error_mark_node.
 242
 243 2018-01-17  Paolo Carlini  <paolo.carlini@oracle.com>
 244
 245         PR c++/78344
 246         * decl.c (grokdeclarator): Do not append the error_mark_node
 247         due to an erroneous optional attribute-specifier-seq.
 248
 249 2018-01-17  Jakub Jelinek  <jakub@redhat.com>
 250
 251         PR c++/83897
 252         * cp-gimplify.c (cp_maybe_instrument_return): Handle
 253         CLEANUP_POINT_EXPR.
 254
 255 2018-01-17  Paolo Carlini  <paolo.carlini@oracle.com>
 256
 257         PR c++/81054
 258         * constexpr.c (ensure_literal_type_for_constexpr_object): Return
 259         error_mark_node when we give an error.
 260         * decl.c (cp_finish_decl): Use the latter.
 261
 262 2018-01-17  Nathan Sidwell  <nathan@acm.org>
 263
 264         PR c++/83287
 265         * init.c (build_raw_new_expr): Scan list for lookups to keep.
 266
 267 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
 268
 269         PR c++/83814
 270         * expr.c (fold_for_warn): Move from c-common.c, reducing to just
 271         the C++ part.  If processing a template, call
 272         fold_non_dependent_expr rather than fully folding.
 273
 274 2018-01-17  Jason Merrill  <jason@redhat.com>
 275
 276         PR c++/81067 - redundant NULL warning.
 277         * call.c (convert_like_real): Restore null_node handling.
 278
 279 2018-01-17  Jason Merrill  <jason@redhat.com>
 280
 281         PR c++/81843 - ICE with variadic member template.
 282         PR c++/72801
 283         * pt.c (unify_pack_expansion): Don't try to deduce enclosing
 284         template args.
 285
 286 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
 287
 288         PR c++/83799
 289         * pt.c (type_dependent_expression_p): Strip any location wrapper
 290         before testing tree codes.
 291         (selftest::test_type_dependent_expression_p): New function.
 292         (selftest::cp_pt_c_tests): Call it.
 293
 294 2018-01-17  Nathan Sidwell  <nathan@acm.org>
 295
 296         PR c++/83739
 297         * pt.c (tsubst_expr) <case RANGE_FOR_STMT>: Rebuild a range_for if
 298         this not a final instantiation.
 299
 300 2018-01-16  Jason Merrill  <jason@redhat.com>
 301
 302         PR c++/83714 - ICE checking return in template.
 303         * typeck.c (check_return_expr): Call build_non_dependent_expr.
 304
 305 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
 306
 307         PR c++/83817
 308         * pt.c (tsubst_copy_and_build) <case CALL_EXPR>: If function
 309         is AGGR_INIT_EXPR rather than CALL_EXPR, set AGGR_INIT_FROM_THUNK_P
 310         instead of CALL_FROM_THUNK_P.
 311
 312         PR c++/83825
 313         * name-lookup.c (member_vec_dedup): Return early if len is 0.
 314         (resort_type_member_vec, set_class_bindings,
 315         insert_late_enum_def_bindings): Use vec qsort method instead of
 316         calling qsort directly.
 317
 318 2018-01-15  Martin Sebor  <msebor@redhat.com>
 319
 320         PR c++/83588
 321         * class.c (find_flexarrays): Make a record of multiple flexible array
 322         members.
 323
 324 2018-01-12  Jason Merrill  <jason@redhat.com>
 325
 326         PR c++/83186 - ICE with static_cast of list-initialized temporary.
 327         * typeck.c (build_static_cast): Use build_non_dependent_expr.
 328
 329 2018-01-12  Nathan Sidwell  <nathan@acm.org>
 330
 331         * cp-tree.h (mark_rvalue_use): Add parm name.
 332         * expr.c (mark_lvalue_use, mark_lvalue_use_nonread): Move next to
 333         mark_rvalue_use.
 334         * call.c (convert_like_real): Fix formatting.
 335
 336 2018-01-11  Jason Merrill  <jason@redhat.com>
 337
 338         PR c++/82728 - wrong -Wunused-but-set-variable
 339         PR c++/82799
 340         PR c++/83690
 341         * call.c (perform_implicit_conversion_flags): Call mark_rvalue_use.
 342         * decl.c (case_conversion): Likewise.
 343         * semantics.c (finish_static_assert): Call
 344         perform_implicit_conversion_flags.
 345
 346 2018-01-11  Nathan Sidwell  <nathan@acm.org>
 347
 348         * method.c (enum mangling_flags): Delete long-dead enum.
 349
 350 2018-01-10  Paolo Carlini  <paolo.carlini@oracle.com>
 351
 352         * parser.c (cp_parser_std_attribute_spec): When
 353         token_pair::require_open / require_close return false simply
 354         return error_mark_node, avoid duplicate cp_parser_error about
 355         expected '(' / ')', respectively.
 356
 357 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
 358
 359         PR c++/43486
 360         * call.c (null_ptr_cst_p): Strip location wrappers when
 361         converting from '0' to a pointer type in C++11 onwards.
 362         (conversion_null_warnings): Replace comparison with null_node with
 363         call to null_node_p.
 364         (build_over_call): Likewise.
 365         * cp-gimplify.c (cp_fold): Remove the early bailout when
 366         processing_template_decl.
 367         * cp-lang.c (selftest::run_cp_tests): Call
 368         selftest::cp_pt_c_tests and selftest::cp_tree_c_tests.
 369         * cp-tree.h (cp_expr::maybe_add_location_wrapper): New method.
 370         (selftest::run_cp_tests): Move decl to bottom of file.
 371         (null_node_p): New inline function.
 372         (selftest::cp_pt_c_tests): New decl.
 373         (selftest::cp_tree_c_tests): New decl.
 374         * cvt.c (build_expr_type_conversion): Replace comparison with
 375         null_node with call to null_node_p.
 376         * error.c (args_to_string): Likewise.
 377         * except.c (build_throw): Likewise.
 378         * mangle.c (write_expression): Skip location wrapper nodes.
 379         * parser.c (literal_integer_zerop): New function.
 380         (cp_parser_postfix_expression): Call maybe_add_location_wrapper on
 381         the result for RID_TYPEID. Pass true for new "wrap_locations_p"
 382         param of cp_parser_parenthesized_expression_list.  When calling
 383         warn_for_memset, replace integer_zerop calls with
 384         literal_integer_zerop, eliminating the double logical negation
 385         cast to bool.  Eliminate the special-casing for CONST_DECL in
 386         favor of the fold_for_warn within warn_for_memset.
 387         (cp_parser_parenthesized_expression_list): Add "wrap_locations_p"
 388         param, defaulting to false.  Convert "expr" to a cp_expr, and call
 389         maybe_add_location_wrapper on it when wrap_locations_p is true.
 390         (cp_parser_unary_expression): Call maybe_add_location_wrapper on
 391         the result for RID_ALIGNOF and RID_SIZEOF.
 392         (cp_parser_builtin_offsetof): Likewise.
 393         * pt.c: Include "selftest.h".
 394         (tsubst_copy): Handle location wrappers.
 395         (tsubst_copy_and_build): Likewise.
 396         (build_non_dependent_expr): Likewise.
 397         (selftest::test_build_non_dependent_expr): New function.
 398         (selftest::cp_pt_c_tests): New function.
 399         * tree.c: Include "selftest.h".
 400         (lvalue_kind): Handle VIEW_CONVERT_EXPR location wrapper nodes.
 401         (selftest::test_lvalue_kind): New function.
 402         (selftest::cp_tree_c_tests): New function.
 403         * typeck.c (string_conv_p): Strip any location wrapper from "exp".
 404         (cp_build_binary_op): Replace comparison with null_node with call
 405         to null_node_p.
 406         (build_address): Use location of operand when building address
 407         expression.
 408
 409 2018-01-10  Marek Polacek  <polacek@redhat.com>
 410
 411         PR c++/82541
 412         * call.c (build_conditional_expr_1): Check complain before warning.
 413         * pt.c (tsubst_copy_and_build) <case COND_EXPR>: Suppress
 414         -Wduplicated-branches.
 415
 416 2018-01-10  Jakub Jelinek  <jakub@redhat.com>
 417
 418         PR c++/81327
 419         * call.c (maybe_warn_class_memaccess): Add forward declaration.
 420         Change last argument from tree * to const vec<tree, va_gc> *, adjust
 421         args uses and check number of operands too.  Don't strip away any
 422         nops.  Use maybe_constant_value when looking for INTEGER_CST args.
 423         Deal with src argument not having pointer type.  Check
 424         tree_fits_uhwi_p before calling tree_to_uhwi.  Remove useless
 425         test.
 426         (build_over_call): Call maybe_warn_class_memaccess here on the
 427         original arguments.
 428         (build_cxx_call): Rather than here on converted arguments.
 429
 430 2018-01-10  Paolo Carlini  <paolo.carlini@oracle.com>
 431
 432         PR c++/81055
 433         * init.c (build_vec_init): Avoid building an INIT_EXPR with
 434         error_mark_node as second argument.
 435
 436 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
 437
 438         PR c++/83734
 439         * constexpr.c (cxx_eval_statement_list): Ignore DEBUG_BEGIN_STMTs
 440         in STATEMENT_LIST.  Remove unneeded assert.
 441
 442 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
 443             Alan Hayward  <alan.hayward@arm.com>
 444             David Sherwood  <david.sherwood@arm.com>
 445
 446         * constexpr.c (cxx_eval_array_reference): Handle polynomial
 447         VECTOR_CST_NELTS.
 448         (cxx_fold_indirect_ref): Handle polynomial TYPE_VECTOR_SUBPARTS.
 449         * call.c (build_conditional_expr_1): Likewise.
 450         * decl.c (cp_finish_decomp): Likewise.
 451         * mangle.c (write_type): Likewise.
 452         * typeck.c (structural_comptypes): Likewise.
 453         (cp_build_binary_op): Likewise.
 454         * typeck2.c (process_init_constructor_array): Likewise.
 455
 456 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
 457
 458         PR c++/83555
 459         * typeck.c (build_static_cast_1): For static casts to reference types,
 460         call build_base_path with flag_delete_null_pointer_checks as nonnull
 461         instead of always false.  When -fsanitize=null, call
 462         ubsan_maybe_instrument_reference on the NULL reference INTEGER_CST.
 463         * cp-gimplify.c (cp_genericize_r): Don't walk subtrees of UBSAN_NULL
 464         call if the first argument is INTEGER_CST with REFERENCE_TYPE.
 465
 466 2018-01-03  Nathan Sidwell  <nathan@acm.org>
 467
 468         PR c++/83667
 469         * method.c (make_alias_for): Copy DECL_CONTEXT.
 470
 471 2018-01-03  Marek Polacek  <polacek@redhat.com>
 472
 473         PR c++/83592
 474         * decl.c (grokdeclarator): Don't warn about MVP in typename context.
 475
 476 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
 477
 478         PR preprocessor/83602
 479         * name-lookup.c (lookup_name_fuzzy): Don't use macro_use_before_def
 480         for builtin macros.
 481
 482         PR c++/83634
 483         * cp-gimplify.c (cp_fold) <case NOP_EXPR>: If the operand folds to
 484         error_mark_node, return error_mark_node.
 485
 486         Update copyright years.
 487
 488 2018-01-02  Jakub Jelinek  <jakub@redhat.com>
 489
 490         PR c++/83556
 491         * tree.c (replace_placeholders_r): Pass NULL as last argument to
 492         cp_walk_tree instead of d->pset.  If non-TREE_CONSTANT and
 493         non-PLACEHOLDER_EXPR tree has been seen already, set *walk_subtrees
 494         to false and return.
 495         (replace_placeholders): Pass NULL instead of &pset as last argument
 496         to cp_walk_tree.
 497
 498 2018-01-02  Nathan Sidwell  <nathan@acm.org>
 499
 500         * constexpr.c (cxx_bind_parameters_in_call): Remove unneeded local
 501         lval var.
 502 \f
 503 Copyright (C) 2018 Free Software Foundation, Inc.
 504
 505 Copying and distribution of this file, with or without modification,
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