mirror of git://gcc.gnu.org/git/gcc.git
8b7043164f
2012-12-19 Paul Thomas <pault@gcc.gnu.org> * array.c (resolve_array_list): Apply C4106. * check.c (gfc_check_same_type_as): Exclude polymorphic entities from check for extensible types. Improved error for disallowed argument types to name the offending type. * class.c : Update copyright date. (gfc_class_null_initializer): Add argument for initialization expression and deal with unlimited polymorphic typespecs. (get_unique_type_string): Give unlimited polymorphic entities a type string. (gfc_intrinsic_hash_value): New function. (gfc_build_class_symbol): Incorporate unlimited polymorphic entities. (gfc_find_derived_vtab): Deal with unlimited polymorphic entities. (gfc_find_intrinsic_vtab): New function. * decl.c (gfc_match_decl_type_spec): Match typespec for unlimited polymorphic type. (gfc_match_data_decl): Skip to 'ok' if unlimited polymorphic. expr.c (gfc_check_pointer_assign): Apply C717. If unlimited polymorphic lvalue, find rvalue vtable for all typespecs, except unlimited polymorphic expressions. (gfc_check_vardef_context): Handle unlimited polymorphic entities. * gfortran.h : Add unlimited polymorphic attribute. Add second arg to gfc_class_null_initializer primitive and primitive for gfc_find_intrinsic_vtab. Add UNLIMITED_POLY to detect unlimited polymorphic expressions. * interface.c (gfc_compare_types): If expr1 is unlimited polymorphic, always return 1. If expr2 is unlimited polymorphic enforce C717. (gfc_compare_interfaces): Skip past conditions that do not apply for unlimited polymorphic entities. (compare_parameter): Make sure that an unlimited polymorphic, allocatable or pointer, formal argument is matched by an unlimited polymorphic actual argument. (compare_actual_formal): Ensure that an intrinsic vtable exists to match an unlimited polymorphic formal argument. * match.c (gfc_match_allocate): Type kind parameter does not need to match an unlimited polymorphic allocate-object. (alloc_opt_list): An unlimited polymorphic allocate-object requires a typespec or a SOURCE tag. (select_intrinsic_set_tmp): New function. (select_type_set_tmp): Call new function. If it returns NULL, build a derived type or class temporary instead. (gfc_match_type_is): Remove restriction to derived types only. Bind(C) or sequence derived types not permitted. * misc (gfc_typename): Printed CLASS(*) for unlimited polymorphism. * module.c : Add AB_UNLIMITED_POLY to pass unlimited polymorphic attribute to and from modules. * resolve.c (resolve_common_vars): Unlimited polymorphic entities cannot appear in common blocks. (resolve_deallocate_expr): Deallocate unlimited polymorphic enities. (resolve_allocate_expr): Likewise for allocation. Make sure vtable exists. (gfc_type_is_extensible): Unlimited polymorphic entities are not extensible. (resolve_select_type): Handle unlimited polymorphic selectors. Ensure that length type parameters are assumed and that names for intrinsic types are generated. (resolve_fl_var_and_proc): Exclude select type temporaries from test of extensibility of type. (resolve_fl_variable): Likewise for test that assumed character length must be a dummy or a parameter. (resolve_fl_derived0): Return SUCCESS unconditionally for unlimited polymorphic entities. Also, allow unlimited polymorphic components. (resolve_fl_derived): Return SUCCESS unconditionally for unlimited polymorphic entities. (resolve_symbol): Return early with unlimited polymorphic entities. * simplifiy.c : Update copyright year. (gfc_simplify_extends_type_of): No simplification possible for unlimited polymorphic arguments. * symbol.c (gfc_use_derived): Nothing to do for unlimited polymorphic "derived type". (gfc_type_compatible): Return unity if ts1 is unlimited polymorphic. * trans-decl.c (create_function_arglist) Formal arguments without a character length should be treated in the same way as passed lengths. (gfc_trans_deferred_vars): Nullify the vptr of unlimited polymorphic pointers. Avoid unlimited polymorphic entities triggering gcc_unreachable. * trans-expr.c (gfc_conv_intrinsic_to_class): New function. (gfc_trans_class_init_assign): Make indirect reference of src.expr. (gfc_trans_class_assign): Expression NULL of unknown type should set NULL vptr on lhs. Treat C717 cases where lhs is a derived type and the rhs is unlimited polymorphic. (gfc_conv_procedure_call): Handle the conversion of a non-class actual argument to match an unlimited polymorphic formal argument. Suppress the passing of a character string length in this case. Make sure that calls to the character __copy function have two character string length arguments. (gfc_conv_initializer): Pass the initialization expression to gfc_class_null_initializer. (gfc_trans_subcomponent_assign): Ditto. (gfc_conv_structure): Move handling of _size component. trans-intrinsic.c: (gfc_conv_same_type_as): Handle conditions where unlimited polymorphic arguments have null vptr. * trans-stmt.c (trans_associate_var): Correctly treat array temporaries associated with unlimited polymorphic selectors. Recover the overwritten dtype for the descriptor. Use the _size field of the vptr for character string lengths. (gfc_trans_allocate): Cope with unlimited polymorphic allocate objects; especially with character source tags. (reset_vptr): New function. (gfc_trans_deallocate): Call it. * trans-types.c (gfc_get_derived_type): Detect unlimited polymorphic types and deal with cases where the derived type of components is null. * trans.c : Update copyright year. (trans_code): Call gfc_trans_class_assign for C717 cases where the lhs is not unlimited polymorphic. 2012-12-19 Paul Thomas <pault@gcc.gnu.org> * intrinsics/extends_type_of.c : Return correct results for null vptrs. 2012-12-19 Paul Thomas <pault@gcc.gnu.org> * gfortran.dg/unlimited_polymorphic_1.f03: New test. * gfortran.dg/unlimited_polymorphic_2.f03: New test. * gfortran.dg/unlimited_polymorphic_3.f03: New test. * gfortran.dg/same_type_as.f03: Correct for improved message. From-SVN: r194622 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
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| gnattools | ||
| include | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
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| libiberty | ||
| libitm | ||
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| libmudflap | ||
| libobjc | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| ABOUT-NLS | ||
| COPYING | ||
| COPYING.LIB | ||
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| COPYING3 | ||
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| MAINTAINERS | ||
| Makefile.def | ||
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README
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.