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Diffstat (limited to 'gcc/elna-builtins.cc')
| -rw-r--r-- | gcc/elna-builtins.cc | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/gcc/elna-builtins.cc b/gcc/elna-builtins.cc deleted file mode 100644 index cf06df8..0000000 --- a/gcc/elna-builtins.cc +++ /dev/null @@ -1,274 +0,0 @@ -/* Builtin definitions. - Copyright (C) 2025 Free Software Foundation, Inc. - -GCC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 3, or (at your option) -any later version. - -GCC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING3. If not see -<http://www.gnu.org/licenses/>. */ - -#include <algorithm> - -#include "elna/gcc/elna-builtins.h" -#include "elna/gcc/elna1.h" -#include "stor-layout.h" -#include "stringpool.h" -#include "elna/gcc/elna-tree.h" - -namespace elna::gcc -{ - void init_ttree() - { - elna_int_type_node = long_integer_type_node; - elna_word_type_node = size_type_node; - elna_char_type_node = unsigned_char_type_node; - elna_pointer_type_node = ptr_type_node; - elna_float_type_node = double_type_node; - - elna_bool_type_node = boolean_type_node; - elna_bool_true_node = boolean_true_node; - elna_bool_false_node = boolean_false_node; - - elna_pointer_nil_node = null_pointer_node; - - elna_string_type_node = make_node(RECORD_TYPE); - tree string_ptr_type = build_pointer_type_for_mode(elna_char_type_node, VOIDmode, true); - - elna_string_length_field_node = build_field(UNKNOWN_LOCATION, - elna_string_type_node, "length", build_qualified_type(elna_word_type_node, TYPE_QUAL_CONST)); - elna_string_ptr_field_node = build_field(UNKNOWN_LOCATION, - elna_string_type_node, "ptr", build_qualified_type(string_ptr_type, TYPE_QUAL_CONST)); - - TYPE_FIELDS(elna_string_type_node) = chainon(elna_string_ptr_field_node, elna_string_length_field_node); - layout_type(elna_string_type_node); - } - - static - tree declare_builtin_type(std::shared_ptr<symbol_table> symbol_table, const char *name, tree type) - { - tree identifier = get_identifier(name); - tree type_declaration = build_decl(UNKNOWN_LOCATION, TYPE_DECL, identifier, type); - - symbol_table->enter(name, type_declaration); - - return type_declaration; - } - - std::shared_ptr<symbol_table> builtin_symbol_table() - { - std::shared_ptr<elna::gcc::symbol_table> symbol_table = std::make_shared<elna::gcc::symbol_table>(); - - declare_builtin_type(symbol_table, "Int", elna_int_type_node); - declare_builtin_type(symbol_table, "Word", elna_word_type_node); - declare_builtin_type(symbol_table, "Char", elna_char_type_node); - declare_builtin_type(symbol_table, "Bool", elna_bool_type_node); - declare_builtin_type(symbol_table, "Pointer", elna_pointer_type_node); - declare_builtin_type(symbol_table, "Float", elna_float_type_node); - - tree string_declaration = declare_builtin_type(symbol_table, "String", elna_string_type_node); - TYPE_NAME(elna_string_type_node) = DECL_NAME(string_declaration); - TYPE_STUB_DECL(elna_string_type_node) = string_declaration; - - return symbol_table; - } - - tree build_composite_type(const std::vector<frontend::type_field>& fields, tree composite_type_node, - std::shared_ptr<symbol_table> symbols) - { - for (auto& field : fields) - { - tree rewritten_field = get_inner_alias(field.second, symbols); - tree field_declaration = build_field(UNKNOWN_LOCATION, - composite_type_node, field.first, rewritten_field); - TYPE_FIELDS(composite_type_node) = chainon(TYPE_FIELDS(composite_type_node), field_declaration); - } - layout_type(composite_type_node); - return composite_type_node; - } - - tree build_procedure_type(const frontend::procedure_type& procedure, std::shared_ptr<symbol_table> symbols) - { - std::vector<tree> parameter_types(procedure.parameters.size()); - - for (std::size_t i = 0; i < procedure.parameters.size(); ++i) - { - parameter_types[i] = get_inner_alias(procedure.parameters.at(i), symbols); - } - tree return_type = void_type_node; - - if (!procedure.return_type.proper_type.empty()) - { - return_type = get_inner_alias(procedure.return_type.proper_type, symbols); - } - return build_function_type_array(return_type, procedure.parameters.size(), parameter_types.data()); - } - - tree get_inner_alias(const frontend::type& type, std::shared_ptr<symbol_table> symbols) - { - if (auto reference = type.get<frontend::primitive_type>()) - { - auto looked_up = symbols->lookup(reference->identifier); - gcc_assert(looked_up != NULL_TREE); - - return TREE_TYPE(looked_up); - } - else if (auto reference = type.get<frontend::record_type>()) - { - tree composite_type_node = make_node(RECORD_TYPE); - - build_composite_type(reference->fields, composite_type_node, symbols); - - return composite_type_node; - } - else if (auto reference = type.get<frontend::union_type>()) - { - tree composite_type_node = make_node(UNION_TYPE); - - build_composite_type(reference->fields, composite_type_node, symbols); - - return composite_type_node; - } - else if (auto reference = type.get<frontend::enumeration_type>()) - { - return build_enumeration_type(reference->members); - } - else if (auto reference = type.get<frontend::pointer_type>()) - { - return build_global_pointer_type(get_inner_alias(reference->base, symbols)); - } - else if (auto reference = type.get<frontend::array_type>()) - { - tree base = get_inner_alias(reference->base, symbols); - - return build_static_array_type(base, reference->size); - } - else if (auto reference = type.get<frontend::procedure_type>()) - { - auto procedure = build_procedure_type(*reference, symbols); - - return build_global_pointer_type(procedure); - } - else if (auto reference = type.get<frontend::alias_type>()) - { - return TREE_TYPE(handle_symbol(reference->name, reference, symbols)); - } - return error_mark_node; - } - - tree handle_symbol(const std::string& symbol_name, std::shared_ptr<frontend::alias_type> reference, - std::shared_ptr<symbol_table> symbols) - { - tree looked_up = symbols->lookup(symbol_name); - - if (looked_up == NULL_TREE) - { - tree type_tree = get_inner_alias(reference->reference, symbols); - looked_up = build_decl(UNKNOWN_LOCATION, TYPE_DECL, - get_identifier(symbol_name.c_str()), type_tree); - - TREE_PUBLIC(looked_up) = 1; - if (is_unique_type(type_tree)) - { - TYPE_NAME(type_tree) = DECL_NAME(looked_up); - TYPE_STUB_DECL(type_tree) = looked_up; - } - else - { - TYPE_NAME(type_tree) = looked_up; - } - symbols->enter(symbol_name, looked_up); - } - return looked_up; - } - - void declare_procedure(const std::string& name, const frontend::procedure_info& info, - std::shared_ptr<symbol_table> symbols) - { - tree declaration_type = gcc::build_procedure_type(info.symbol, symbols); - tree fndecl = build_fn_decl(name.c_str(), declaration_type); - symbols->enter(name, fndecl); - - if (info.symbol.return_type.no_return) - { - TREE_THIS_VOLATILE(fndecl) = 1; - } - tree resdecl = build_decl(UNKNOWN_LOCATION, RESULT_DECL, NULL_TREE, TREE_TYPE(declaration_type)); - DECL_CONTEXT(resdecl) = fndecl; - DECL_RESULT(fndecl) = resdecl; - - tree argument_chain = NULL_TREE; - function_args_iterator parameter_type; - function_args_iter_init(¶meter_type, declaration_type); - - std::vector<std::string>::const_iterator parameter_name = info.names.cbegin(); - - for (frontend::type parameter : info.symbol.parameters) - { - tree declaration_tree = build_decl(UNKNOWN_LOCATION, PARM_DECL, - get_identifier(parameter_name->c_str()), function_args_iter_cond(¶meter_type)); - DECL_CONTEXT(declaration_tree) = fndecl; - DECL_ARG_TYPE(declaration_tree) = function_args_iter_cond(¶meter_type); - - argument_chain = chainon(argument_chain, declaration_tree); - function_args_iter_next(¶meter_type); - ++parameter_name; - } - DECL_ARGUMENTS(fndecl) = argument_chain; - TREE_ADDRESSABLE(fndecl) = 1; - DECL_EXTERNAL(fndecl) = info.is_extern(); - TREE_PUBLIC(fndecl) = info.exported; - } - - tree declare_variable(const std::string& name, const frontend::variable_info& info, - std::shared_ptr<symbol_table> symbols) - { - auto variable_type = get_inner_alias(info.symbol, symbols); - tree declaration_tree = build_decl(UNKNOWN_LOCATION, VAR_DECL, get_identifier(name.c_str()), variable_type); - - TREE_ADDRESSABLE(declaration_tree) = 1; - DECL_EXTERNAL(declaration_tree) = info.is_extern; - TREE_PUBLIC(declaration_tree) = info.exported; - - symbols->enter(name, declaration_tree); - - return declaration_tree; - } - - void declare_type(const std::string& name, const frontend::type_info& info, std::shared_ptr<symbol_table> symbols) - { - // The top level symbol table has basic (builtin) types in it which are not aliases. - if (auto alias_type = info.symbol.get<frontend::alias_type>()) - { - tree type_declaration = handle_symbol(name, alias_type, symbols); - - TREE_PUBLIC(type_declaration) = info.exported; - } - } - - void rewrite_symbol_table(std::shared_ptr<frontend::symbol_table> info_table, std::shared_ptr<symbol_table> symbols) - { - for (auto& [symbol_name, symbol_info] : *info_table) - { - if (auto type_info = symbol_info->is_type()) - { - declare_type(symbol_name, *type_info, symbols); - } - else if (auto variable_info = symbol_info->is_variable()) - { - declare_variable(symbol_name, *variable_info, symbols); - } - else if (auto procedure_info = symbol_info->is_procedure()) - { - declare_procedure(symbol_name, *procedure_info, symbols); - } - } - } -} |