X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=type_hash.c;h=49fd88edce1cce166f9201ee6290c9ed30b6d8bb;hb=9d562f8239c1c0232c7254f53b78e2b74325e1a7;hp=59a56679749c6e6a04f7e5af51dd9438ea5cc58c;hpb=4aeae1b9325a9ea33361198efd19bae4b834b091;p=cparser diff --git a/type_hash.c b/type_hash.c index 59a5667..49fd88e 100644 --- a/type_hash.c +++ b/type_hash.c @@ -1,3 +1,22 @@ +/* + * This file is part of cparser. + * Copyright (C) 2007-2008 Matthias Braun + * + * This program 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 2 + * of the License, or (at your option) any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ #include #include @@ -17,6 +36,9 @@ #undef HashSetIterator #undef HashSet +typedef struct type_hash_iterator_t type_hash_iterator_t; +typedef struct type_hash_t type_hash_t; + /* TODO: ^= is a bad way of combining hashes since most addresses are very * similar */ @@ -26,53 +48,78 @@ static unsigned hash_ptr(const void *ptr) return ptr_int >> 3; } -static unsigned hash_atomic_type(const type_t *type) +static unsigned hash_atomic_type(const atomic_type_t *type) +{ + unsigned some_prime = 27644437; + unsigned result = type->akind * some_prime; + + return result; +} + +static unsigned hash_complex_type(const complex_type_t *type) +{ + unsigned some_prime = 27644437; + unsigned result = type->akind * some_prime; + + return result; +} + +static unsigned hash_imaginary_type(const imaginary_type_t *type) { unsigned some_prime = 27644437; - unsigned result = type->v.atomic_type.atype * some_prime; + unsigned result = type->akind * some_prime; return result; } -static unsigned hash_pointer_type(const type_t *type) +static unsigned hash_pointer_type(const pointer_type_t *type) { - return hash_ptr(type->v.pointer_type.points_to); + return hash_ptr(type->points_to); } -static unsigned hash_array_type(const type_t *type) +static unsigned hash_array_type(const array_type_t *type) { - return hash_ptr(type->v.array_type.element_type); + return hash_ptr(type->element_type); } -static unsigned hash_compound_type(const type_t *type) +static unsigned hash_compound_type(const compound_type_t *type) { - return hash_ptr(type->v.compound_type.declaration); + return hash_ptr(type->declaration); } static unsigned hash_type(const type_t *type); -static unsigned hash_function_type(const type_t *type) +static unsigned hash_function_type(const function_type_t *type) { - unsigned result = hash_ptr(type->v.function_type.result_type); + unsigned result = hash_ptr(type->return_type); - function_parameter_t *parameter = type->v.function_type.parameters; - while(parameter != NULL) { + function_parameter_t *parameter = type->parameters; + while (parameter != NULL) { result ^= hash_ptr(parameter->type); parameter = parameter->next; } + result += type->calling_convention; return result; } -static unsigned hash_enum_type(const type_t *type) +static unsigned hash_enum_type(const enum_type_t *type) +{ + return hash_ptr(type->declaration); +} + +static unsigned hash_typeof_type(const typeof_type_t *type) { - return hash_ptr(type->v.enum_type.declaration); + unsigned result = hash_ptr(type->expression); + result ^= hash_ptr(type->typeof_type); + + return result; } -static unsigned hash_typeof_type(const type_t *type) +static unsigned hash_bitfield_type(const bitfield_type_t *type) { - unsigned result = hash_ptr(type->v.typeof_type.expression); - result ^= hash_ptr(type->v.typeof_type.typeof_type); + unsigned result = hash_ptr(type->base_type); + result ^= 27172145; return result; } @@ -81,165 +128,217 @@ static unsigned hash_type(const type_t *type) { unsigned hash = 0; - switch(type->type) { + switch (type->kind) { case TYPE_INVALID: panic("internalizing void or invalid types not possible"); return 0; + case TYPE_ERROR: + return 0; case TYPE_ATOMIC: - hash = hash_atomic_type(type); + hash = hash_atomic_type(&type->atomic); + break; + case TYPE_COMPLEX: + hash = hash_complex_type(&type->complex); + break; + case TYPE_IMAGINARY: + hash = hash_imaginary_type(&type->imaginary); break; case TYPE_ENUM: - hash = hash_enum_type(type); + hash = hash_enum_type(&type->enumt); break; case TYPE_COMPOUND_STRUCT: case TYPE_COMPOUND_UNION: - hash = hash_compound_type(type); + hash = hash_compound_type(&type->compound); break; case TYPE_FUNCTION: - hash = hash_function_type(type); + hash = hash_function_type(&type->function); break; case TYPE_POINTER: - hash = hash_pointer_type(type); + hash = hash_pointer_type(&type->pointer); break; case TYPE_ARRAY: - hash = hash_array_type(type); + hash = hash_array_type(&type->array); break; case TYPE_BUILTIN: - hash = hash_ptr(type->v.builtin_type.symbol); + hash = hash_ptr(type->builtin.symbol); break; case TYPE_TYPEDEF: - hash = hash_ptr(type->v.typedef_type.declaration); + hash = hash_ptr(type->typedeft.declaration); break; case TYPE_TYPEOF: - hash = hash_typeof_type(type); + hash = hash_typeof_type(&type->typeoft); + break; + case TYPE_BITFIELD: + hash = hash_bitfield_type(&type->bitfield); break; } unsigned some_prime = 99991; - hash ^= some_prime * type->qualifiers; + hash ^= some_prime * type->base.qualifiers; return hash; } -static bool atomic_types_equal(const type_t *type1, - const type_t *type2) +static bool atomic_types_equal(const atomic_type_t *type1, + const atomic_type_t *type2) +{ + return type1->akind == type2->akind; +} + +static bool complex_types_equal(const complex_type_t *type1, + const complex_type_t *type2) { - return type1->v.atomic_type.atype == type2->v.atomic_type.atype; + return type1->akind == type2->akind; } -static bool function_types_equal(const type_t *type1, - const type_t *type2) +static bool imaginary_types_equal(const imaginary_type_t *type1, + const imaginary_type_t *type2) { - if(type1->v.function_type.result_type != type2->v.function_type.result_type) + return type1->akind == type2->akind; +} + +static bool function_types_equal(const function_type_t *type1, + const function_type_t *type2) +{ + if (type1->return_type != type2->return_type) + return false; + if (type1->variadic != type2->variadic) + return false; + if (type1->unspecified_parameters != type2->unspecified_parameters) return false; - if(type1->v.function_type.variadic != type2->v.function_type.variadic) + if (type1->kr_style_parameters != type2->kr_style_parameters) return false; - if(type1->v.function_type.unspecified_parameters != - type2->v.function_type.unspecified_parameters) + if (type1->calling_convention != type2->calling_convention) return false; - function_parameter_t *param1 = type1->v.function_type.parameters; - function_parameter_t *param2 = type2->v.function_type.parameters; - while(param1 != NULL && param2 != NULL) { - if(param1->type != param2->type) + function_parameter_t *param1 = type1->parameters; + function_parameter_t *param2 = type2->parameters; + while (param1 != NULL && param2 != NULL) { + if (param1->type != param2->type) return false; param1 = param1->next; param2 = param2->next; } - if(param1 != NULL || param2 != NULL) + if (param1 != NULL || param2 != NULL) return false; return true; } -static bool pointer_types_equal(const type_t *type1, - const type_t *type2) +static bool pointer_types_equal(const pointer_type_t *type1, + const pointer_type_t *type2) { - return type1->v.pointer_type.points_to == type2->v.pointer_type.points_to; + return type1->points_to == type2->points_to; } -static bool array_types_equal(const type_t *type1, - const type_t *type2) +static bool array_types_equal(const array_type_t *type1, + const array_type_t *type2) { - if(type1->v.array_type.element_type != type2->v.array_type.element_type) + if (type1->element_type != type2->element_type) return false; - if(type1->v.array_type.is_variable != type2->v.array_type.is_variable) + if (type1->is_variable != type2->is_variable) return false; - if(type1->v.array_type.is_static != type2->v.array_type.is_static) + if (type1->is_static != type2->is_static) return false; - /* TODO: compare expressions for equality... */ - if(type1->v.array_type.size != type2->v.array_type.size) + if (type1->size_constant != type2->size_constant) return false; - return true; + /* never identify vla types, because we need them for caching calculated + * sizes later in ast2firm */ + if (type1->is_vla || type2->is_vla) + return false; + + /* TODO: compare size expressions for equality... */ + + return false; } -static bool builtin_types_equal(const type_t *type1, - const type_t *type2) +static bool builtin_types_equal(const builtin_type_t *type1, + const builtin_type_t *type2) { - return type1->v.builtin_type.symbol == type2->v.builtin_type.symbol; + return type1->symbol == type2->symbol; } -static bool compound_types_equal(const type_t *type1, - const type_t *type2) +static bool compound_types_equal(const compound_type_t *type1, + const compound_type_t *type2) { - return type1->v.compound_type.declaration == type2->v.compound_type.declaration; + return type1->declaration == type2->declaration; } -static bool enum_types_equal(const type_t *type1, - const type_t *type2) +static bool enum_types_equal(const enum_type_t *type1, + const enum_type_t *type2) { - return type1->v.enum_type.declaration == type2->v.enum_type.declaration; + return type1->declaration == type2->declaration; } -static bool typedef_types_equal(const type_t *type1, - const type_t *type2) +static bool typedef_types_equal(const typedef_type_t *type1, + const typedef_type_t *type2) { - return type1->v.typedef_type.declaration == type2->v.typedef_type.declaration; + return type1->declaration == type2->declaration; } -static bool typeof_types_equal(const type_t *type1, - const type_t *type2) +static bool typeof_types_equal(const typeof_type_t *type1, + const typeof_type_t *type2) { - if(type1->v.typeof_type.expression != type2->v.typeof_type.expression) + if (type1->expression != type2->expression) return false; - if(type1->v.typeof_type.typeof_type != type2->v.typeof_type.typeof_type) + if (type1->typeof_type != type2->typeof_type) return false; return true; } +static bool bitfield_types_equal(const bitfield_type_t *type1, + const bitfield_type_t *type2) +{ + if (type1->base_type != type2->base_type) + return false; + /* TODO: compare size expression */ + return false; +} + static bool types_equal(const type_t *type1, const type_t *type2) { - if(type1 == type2) + if (type1 == type2) return true; - if(type1->type != type2->type) + if (type1->kind != type2->kind) return false; - if(type1->qualifiers != type2->qualifiers) + if (type1->base.qualifiers != type2->base.qualifiers) + return false; + if (type1->base.modifiers != type2->base.modifiers) return false; - switch(type1->type) { + switch (type1->kind) { + case TYPE_ERROR: + /* Hmm, the error type is never equal */ + return false; case TYPE_INVALID: return false; case TYPE_ATOMIC: - return atomic_types_equal(type1, type2); + return atomic_types_equal(&type1->atomic, &type2->atomic); + case TYPE_COMPLEX: + return complex_types_equal(&type1->complex, &type2->complex); + case TYPE_IMAGINARY: + return imaginary_types_equal(&type1->imaginary, &type2->imaginary); case TYPE_ENUM: - return enum_types_equal(type1, type2); + return enum_types_equal(&type1->enumt, &type2->enumt); case TYPE_COMPOUND_STRUCT: case TYPE_COMPOUND_UNION: - return compound_types_equal(type1, type2); + return compound_types_equal(&type1->compound, &type2->compound); case TYPE_FUNCTION: - return function_types_equal(type1, type2); + return function_types_equal(&type1->function, &type2->function); case TYPE_POINTER: - return pointer_types_equal(type1, type2); + return pointer_types_equal(&type1->pointer, &type2->pointer); case TYPE_ARRAY: - return array_types_equal(type1, type2); + return array_types_equal(&type1->array, &type2->array); case TYPE_BUILTIN: - return builtin_types_equal(type1, type2); + return builtin_types_equal(&type1->builtin, &type2->builtin); case TYPE_TYPEOF: - return typeof_types_equal(type1, type2); + return typeof_types_equal(&type1->typeoft, &type2->typeoft); case TYPE_TYPEDEF: - return typedef_types_equal(type1, type2); + return typedef_types_equal(&type1->typedeft, &type2->typedeft); + case TYPE_BITFIELD: + return bitfield_types_equal(&type1->bitfield, &type2->bitfield); } abort(); @@ -264,6 +363,7 @@ static bool types_equal(const type_t *type1, const type_t *type2) #define hashset_iterator_init typehash_iterator_init #define hashset_iterator_next typehash_iterator_next #define hashset_remove_iterator typehash_remove_iterator +#define SCALAR_RETURN #include "adt/hashset.c"