2019-01-01 13:31:55 +01:00
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// Copyright (C) 1994-2019 Free Software Foundation, Inc.
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2007-03-18 23:35:39 +01:00
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//
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// This file is part of GCC.
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//
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// GCC is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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2009-04-09 17:00:19 +02:00
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// the Free Software Foundation; either version 3, or (at your option)
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2007-03-18 23:35:39 +01:00
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// any later version.
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// GCC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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2009-04-09 17:00:19 +02:00
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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2007-03-18 23:35:39 +01:00
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2009-04-09 17:00:19 +02:00
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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2007-03-18 23:35:39 +01:00
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#include "tinfo.h"
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namespace __cxxabiv1 {
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__pbase_type_info::
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~__pbase_type_info ()
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{}
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bool __pbase_type_info::
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__do_catch (const type_info *thr_type,
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void **thr_obj,
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unsigned outer) const
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{
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if (*this == *thr_type)
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return true; // same type
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2010-02-17 06:43:24 +01:00
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2014-12-12 16:58:49 +01:00
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#if __cpp_rtti
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2016-07-15 20:51:51 +02:00
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if (*thr_type == typeid (nullptr))
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{
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// A catch handler for any pointer type matches nullptr_t.
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if (typeid (*this) == typeid(__pointer_type_info))
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{
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*thr_obj = nullptr;
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return true;
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}
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else if (typeid (*this) == typeid(__pointer_to_member_type_info))
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{
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if (__pointee->__is_function_p ())
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{
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2016-07-20 20:21:48 +02:00
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using pmf_type = void (__pbase_type_info::*)();
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static const pmf_type pmf = nullptr;
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*thr_obj = const_cast<pmf_type*>(&pmf);
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return true;
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2016-07-15 20:51:51 +02:00
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}
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else
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{
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2016-07-20 20:21:48 +02:00
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using pm_type = int __pbase_type_info::*;
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static const pm_type pm = nullptr;
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*thr_obj = const_cast<pm_type*>(&pm);
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2016-07-15 20:51:51 +02:00
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return true;
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}
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}
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}
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2007-03-18 23:35:39 +01:00
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if (typeid (*this) != typeid (*thr_type))
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return false; // not both same kind of pointers
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2010-02-17 06:43:24 +01:00
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#endif
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2007-03-18 23:35:39 +01:00
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if (!(outer & 1))
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// We're not the same and our outer pointers are not all const qualified
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// Therefore there must at least be a qualification conversion involved
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// But for that to be valid, our outer pointers must be const qualified.
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return false;
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const __pbase_type_info *thrown_type =
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static_cast <const __pbase_type_info *> (thr_type);
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Implement N4514, C++ Extensions for Transactional Memory.
gcc/
* builtins.def (BUILT_IN_ABORT): Add transaction_pure attribute.
gcc/c-family/
* c-common.c (c_common_reswords): Add C++ TM TS keywords.
(c_common_attribute_table): Add transaction_safe_dynamic.
transaction_safe now affects type identity.
(handle_tm_attribute): Handle transaction_safe_dynamic.
* c-common.h (enum rid): Add RID_ATOMIC_NOEXCEPT,
RID_ATOMIC_CANCEL, RID_SYNCHRONIZED.
(OBJC_IS_CXX_KEYWORD): Add RID_SYNCHRONIZED.
(D_TRANSMEM): New.
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_transactional_memory.
* c-pretty-print.c (pp_c_attributes_display): Don't print
transaction_safe in C++.
gcc/c/
* c-parser.c (c_lex_one_token): Handle @synchronized.
* c-decl.c (match_builtin_function_types): A declaration of a built-in
can change whether the function is transaction_safe.
gcc/cp/
* cp-tree.h (struct cp_declarator): Add tx_qualifier field.
(BCS_NORMAL, BCS_TRANSACTION): New enumerators.
* lex.c (init_reswords): Limit TM kewords to -fgnu-tm.
* parser.c (cp_lexer_get_preprocessor_token): Fix @synchronized.
(make_call_declarator): Take tx_qualifier.
(cp_parser_tx_qualifier_opt): New.
(cp_parser_lambda_declarator_opt): Use it.
(cp_parser_direct_declarator): Likewise.
(cp_parser_statement): Handle atomic_noexcept, atomic_cancel.
(cp_parser_compound_statement): Change in_try parameter to bcs_flags.
(cp_parser_std_attribute): Map optimize_for_synchronized to
transaction_callable.
(cp_parser_transaction): Take the token. Handle atomic_noexcept.
* lambda.c (maybe_add_lambda_conv_op): Handle transaction-safety.
* call.c (enum conversion_kind): Add ck_tsafe.
(standard_conversion): Handle transaction-safety conversion.
(convert_like_real, resolve_address_of_overloaded_function): Likewise.
(check_methods): Diagnose transaction_safe_dynamic on non-virtual
function.
(look_for_tm_attr_overrides): Don't inherit transaction_safe_dynamic.
* cvt.c (tx_safe_fn_type_p, tx_unsafe_fn_variant)
(can_convert_tx_safety): New.
* typeck.c (composite_pointer_type): Handle transaction-safety.
* name-lookup.h (enum scope_kind): Add sk_transaction.
* name-lookup.c (begin_scope): Handle it.
* semantics.c (begin_compound_stmt): Pass it.
* decl.c (check_previous_goto_1): Check it.
(struct named_label_entry): Add in_transaction_scope.
(poplevel_named_label_1): Set it.
(check_goto): Check it.
(duplicate_decls): A specialization can be transaction_safe
independently of its template.
(grokdeclarator): Handle tx-qualifier.
* rtti.c (ptr_initializer): Handle transaction-safe.
* search.c (check_final_overrider): Check transaction_safe_dynamic.
Don't check transaction_safe.
* mangle.c (write_function_type): Mangle transaction_safe here.
(write_CV_qualifiers_for_type): Not here.
(write_type): Preserve transaction_safe when stripping attributes.
* error.c (dump_type_suffix): Print transaction_safe.
libiberty/
* cp-demangle.c (d_cv_qualifiers): Dx means transaction_safe.
(cplus_demangle_type): Let d_cv_qualifiers handle it.
(d_dump, d_make_comp, has_return_type, d_encoding)
(d_count_templates_scopes, d_print_comp_inner)
(d_print_mod_list, d_print_mod, d_print_function_type)
(is_ctor_or_dtor): Handle DEMANGLE_COMPONENT_TRANSACTION_SAFE.
From-SVN: r228462
2015-10-04 21:17:19 +02:00
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unsigned tflags = thrown_type->__flags;
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Implement P0012R1, Make exception specifications part of the type system.
gcc/cp/
* cp-tree.h (enum tsubst_flags): Add tf_fndecl_type.
(flag_noexcept_type, ce_type): New.
* call.c (build_conv): Add ck_fnptr.
(enum conversion_kind): Change ck_tsafe to ck_fnptr.
(convert_like_real): Likewise.
(standard_conversion): Likewise. Allow function pointer
conversions for pointers to member functions.
(reference_compatible_p): Allow function pointer conversions.
(direct_reference_binding): Likewise.
(reference_binding): Reference-compatible is no longer a subset of
reference-related.
(is_subseq): Also strip ck_lvalue after next_conversion.
* class.c (instantiate_type): Check fnptr_conv_p.
(resolve_address_of_overloaded_function): Likewise.
* cvt.c (can_convert_tx_safety): Now static.
(noexcept_conv_p, fnptr_conv_p, strip_fnptr_conv): New.
* decl.c (flag_noexcept_type): Define.
(cxx_init_decl_processing): Set it.
(bad_specifiers): Check it.
(grokdeclarator) [cdk_function]: Add exception-spec to type here.
* lambda.c (maybe_add_lambda_conv_op): Add exception-spec to
returned pointer.
* mangle.c (struct globals): Add need_cxx1z_warning.
(mangle_decl): Check it.
(write_exception_spec): New.
(write_function_type): Call it.
(canonicalize_for_substitution): Handle exception spec.
(write_type): Likewise.
(write_encoding): Set processing_template_decl across mangling of
partially-instantiated type.
* pt.c (determine_specialization): Pass tf_fndecl_type.
(tsubst_decl, fn_type_unification): Likewise.
(tsubst): Strip tf_fndecl_type, pass it to
tsubst_exception_specification.
(convert_nontype_argument_function): Handle function pointer
conversion.
(convert_nontype_argument): Likewise.
(unify, for_each_template_parm_r): Walk into noexcept-specifier.
* rtti.c (ptr_initializer): Encode noexcept.
* tree.c (canonical_eh_spec): New.
(build_exception_variant): Use it.
* typeck.c (composite_pointer_type): Handle fnptr conversion.
(comp_except_specs): Compare canonical EH specs.
(structural_comptypes): Call it.
gcc/c-family/
* c.opt (Wc++1z-compat): New.
* c-cppbuiltin.c (c_cpp_builtins): Add __cpp_noexcept_function_type.
libstdc++-v3/
* include/bits/c++config (_GLIBCXX_NOEXCEPT_PARM)
(_GLIBCXX_NOEXCEPT_QUAL): New.
* include/std/type_traits (is_function): Use them.
* libsubc++/new (launder): Likewise.
* libsupc++/cxxabi.h (__pbase_type_info::__masks): Add
__noexcept_mask.
* libsupc++/pbase_type_info.cc (__do_catch): Handle function
pointer conversion.
libiberty/
* cp-demangle.c (is_fnqual_component_type): New.
(d_encoding, d_print_comp_inner, d_print_mod_list): Use it.
(FNQUAL_COMPONENT_CASE): New.
(d_make_comp, has_return_type, d_print_comp_inner)
(d_print_function_type): Use it.
(next_is_type_qual): New.
(d_cv_qualifiers, d_print_mod): Handle noexcept and throw-spec.
include/
* demangle.h (enum demangle_component_type): Add
DEMANGLE_COMPONENT_NOEXCEPT, DEMANGLE_COMPONENT_THROW_SPEC.
From-SVN: r241944
2016-11-08 00:09:29 +01:00
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const unsigned fqual_mask = __transaction_safe_mask|__noexcept_mask;
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unsigned throw_fqual = (tflags & fqual_mask);
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unsigned catch_fqual = (__flags & fqual_mask);
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if (throw_fqual & ~catch_fqual)
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/* Catch can perform a function pointer conversion. */
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tflags &= catch_fqual;
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if (catch_fqual & ~throw_fqual)
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Implement N4514, C++ Extensions for Transactional Memory.
gcc/
* builtins.def (BUILT_IN_ABORT): Add transaction_pure attribute.
gcc/c-family/
* c-common.c (c_common_reswords): Add C++ TM TS keywords.
(c_common_attribute_table): Add transaction_safe_dynamic.
transaction_safe now affects type identity.
(handle_tm_attribute): Handle transaction_safe_dynamic.
* c-common.h (enum rid): Add RID_ATOMIC_NOEXCEPT,
RID_ATOMIC_CANCEL, RID_SYNCHRONIZED.
(OBJC_IS_CXX_KEYWORD): Add RID_SYNCHRONIZED.
(D_TRANSMEM): New.
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_transactional_memory.
* c-pretty-print.c (pp_c_attributes_display): Don't print
transaction_safe in C++.
gcc/c/
* c-parser.c (c_lex_one_token): Handle @synchronized.
* c-decl.c (match_builtin_function_types): A declaration of a built-in
can change whether the function is transaction_safe.
gcc/cp/
* cp-tree.h (struct cp_declarator): Add tx_qualifier field.
(BCS_NORMAL, BCS_TRANSACTION): New enumerators.
* lex.c (init_reswords): Limit TM kewords to -fgnu-tm.
* parser.c (cp_lexer_get_preprocessor_token): Fix @synchronized.
(make_call_declarator): Take tx_qualifier.
(cp_parser_tx_qualifier_opt): New.
(cp_parser_lambda_declarator_opt): Use it.
(cp_parser_direct_declarator): Likewise.
(cp_parser_statement): Handle atomic_noexcept, atomic_cancel.
(cp_parser_compound_statement): Change in_try parameter to bcs_flags.
(cp_parser_std_attribute): Map optimize_for_synchronized to
transaction_callable.
(cp_parser_transaction): Take the token. Handle atomic_noexcept.
* lambda.c (maybe_add_lambda_conv_op): Handle transaction-safety.
* call.c (enum conversion_kind): Add ck_tsafe.
(standard_conversion): Handle transaction-safety conversion.
(convert_like_real, resolve_address_of_overloaded_function): Likewise.
(check_methods): Diagnose transaction_safe_dynamic on non-virtual
function.
(look_for_tm_attr_overrides): Don't inherit transaction_safe_dynamic.
* cvt.c (tx_safe_fn_type_p, tx_unsafe_fn_variant)
(can_convert_tx_safety): New.
* typeck.c (composite_pointer_type): Handle transaction-safety.
* name-lookup.h (enum scope_kind): Add sk_transaction.
* name-lookup.c (begin_scope): Handle it.
* semantics.c (begin_compound_stmt): Pass it.
* decl.c (check_previous_goto_1): Check it.
(struct named_label_entry): Add in_transaction_scope.
(poplevel_named_label_1): Set it.
(check_goto): Check it.
(duplicate_decls): A specialization can be transaction_safe
independently of its template.
(grokdeclarator): Handle tx-qualifier.
* rtti.c (ptr_initializer): Handle transaction-safe.
* search.c (check_final_overrider): Check transaction_safe_dynamic.
Don't check transaction_safe.
* mangle.c (write_function_type): Mangle transaction_safe here.
(write_CV_qualifiers_for_type): Not here.
(write_type): Preserve transaction_safe when stripping attributes.
* error.c (dump_type_suffix): Print transaction_safe.
libiberty/
* cp-demangle.c (d_cv_qualifiers): Dx means transaction_safe.
(cplus_demangle_type): Let d_cv_qualifiers handle it.
(d_dump, d_make_comp, has_return_type, d_encoding)
(d_count_templates_scopes, d_print_comp_inner)
(d_print_mod_list, d_print_mod, d_print_function_type)
(is_ctor_or_dtor): Handle DEMANGLE_COMPONENT_TRANSACTION_SAFE.
From-SVN: r228462
2015-10-04 21:17:19 +02:00
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/* But not the reverse. */
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return false;
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2007-03-18 23:35:39 +01:00
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Implement N4514, C++ Extensions for Transactional Memory.
gcc/
* builtins.def (BUILT_IN_ABORT): Add transaction_pure attribute.
gcc/c-family/
* c-common.c (c_common_reswords): Add C++ TM TS keywords.
(c_common_attribute_table): Add transaction_safe_dynamic.
transaction_safe now affects type identity.
(handle_tm_attribute): Handle transaction_safe_dynamic.
* c-common.h (enum rid): Add RID_ATOMIC_NOEXCEPT,
RID_ATOMIC_CANCEL, RID_SYNCHRONIZED.
(OBJC_IS_CXX_KEYWORD): Add RID_SYNCHRONIZED.
(D_TRANSMEM): New.
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_transactional_memory.
* c-pretty-print.c (pp_c_attributes_display): Don't print
transaction_safe in C++.
gcc/c/
* c-parser.c (c_lex_one_token): Handle @synchronized.
* c-decl.c (match_builtin_function_types): A declaration of a built-in
can change whether the function is transaction_safe.
gcc/cp/
* cp-tree.h (struct cp_declarator): Add tx_qualifier field.
(BCS_NORMAL, BCS_TRANSACTION): New enumerators.
* lex.c (init_reswords): Limit TM kewords to -fgnu-tm.
* parser.c (cp_lexer_get_preprocessor_token): Fix @synchronized.
(make_call_declarator): Take tx_qualifier.
(cp_parser_tx_qualifier_opt): New.
(cp_parser_lambda_declarator_opt): Use it.
(cp_parser_direct_declarator): Likewise.
(cp_parser_statement): Handle atomic_noexcept, atomic_cancel.
(cp_parser_compound_statement): Change in_try parameter to bcs_flags.
(cp_parser_std_attribute): Map optimize_for_synchronized to
transaction_callable.
(cp_parser_transaction): Take the token. Handle atomic_noexcept.
* lambda.c (maybe_add_lambda_conv_op): Handle transaction-safety.
* call.c (enum conversion_kind): Add ck_tsafe.
(standard_conversion): Handle transaction-safety conversion.
(convert_like_real, resolve_address_of_overloaded_function): Likewise.
(check_methods): Diagnose transaction_safe_dynamic on non-virtual
function.
(look_for_tm_attr_overrides): Don't inherit transaction_safe_dynamic.
* cvt.c (tx_safe_fn_type_p, tx_unsafe_fn_variant)
(can_convert_tx_safety): New.
* typeck.c (composite_pointer_type): Handle transaction-safety.
* name-lookup.h (enum scope_kind): Add sk_transaction.
* name-lookup.c (begin_scope): Handle it.
* semantics.c (begin_compound_stmt): Pass it.
* decl.c (check_previous_goto_1): Check it.
(struct named_label_entry): Add in_transaction_scope.
(poplevel_named_label_1): Set it.
(check_goto): Check it.
(duplicate_decls): A specialization can be transaction_safe
independently of its template.
(grokdeclarator): Handle tx-qualifier.
* rtti.c (ptr_initializer): Handle transaction-safe.
* search.c (check_final_overrider): Check transaction_safe_dynamic.
Don't check transaction_safe.
* mangle.c (write_function_type): Mangle transaction_safe here.
(write_CV_qualifiers_for_type): Not here.
(write_type): Preserve transaction_safe when stripping attributes.
* error.c (dump_type_suffix): Print transaction_safe.
libiberty/
* cp-demangle.c (d_cv_qualifiers): Dx means transaction_safe.
(cplus_demangle_type): Let d_cv_qualifiers handle it.
(d_dump, d_make_comp, has_return_type, d_encoding)
(d_count_templates_scopes, d_print_comp_inner)
(d_print_mod_list, d_print_mod, d_print_function_type)
(is_ctor_or_dtor): Handle DEMANGLE_COMPONENT_TRANSACTION_SAFE.
From-SVN: r228462
2015-10-04 21:17:19 +02:00
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if (tflags & ~__flags)
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2007-03-18 23:35:39 +01:00
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// We're less qualified.
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return false;
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if (!(__flags & __const_mask))
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outer &= ~1;
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return __pointer_catch (thrown_type, thr_obj, outer);
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}
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}
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