X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=type_hash.c;h=49fd88edce1cce166f9201ee6290c9ed30b6d8bb;hb=9d562f8239c1c0232c7254f53b78e2b74325e1a7;hp=ed071224a37b0b62c18ff43db6695944acc2067c;hpb=220bd1d88703eede6a4891f3014708c8259b303e;p=cparser diff --git a/type_hash.c b/type_hash.c index ed07122..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 */ @@ -34,6 +56,22 @@ static unsigned hash_atomic_type(const atomic_type_t *type) 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->akind * some_prime; + + return result; +} + static unsigned hash_pointer_type(const pointer_type_t *type) { return hash_ptr(type->points_to); @@ -56,10 +94,11 @@ static unsigned hash_function_type(const function_type_t *type) unsigned result = hash_ptr(type->return_type); function_parameter_t *parameter = type->parameters; - while(parameter != NULL) { + while (parameter != NULL) { result ^= hash_ptr(parameter->type); parameter = parameter->next; } + result += type->calling_convention; return result; } @@ -79,7 +118,7 @@ static unsigned hash_typeof_type(const typeof_type_t *type) static unsigned hash_bitfield_type(const bitfield_type_t *type) { - unsigned result = hash_ptr(type->base); + unsigned result = hash_ptr(type->base_type); result ^= 27172145; return result; @@ -89,13 +128,21 @@ static unsigned hash_type(const type_t *type) { unsigned hash = 0; - switch(type->kind) { + 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->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->enumt); break; @@ -133,7 +180,19 @@ static unsigned hash_type(const type_t *type) } static bool atomic_types_equal(const atomic_type_t *type1, - const atomic_type_t *type2) + 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->akind == type2->akind; +} + +static bool imaginary_types_equal(const imaginary_type_t *type1, + const imaginary_type_t *type2) { return type1->akind == type2->akind; } @@ -141,24 +200,26 @@ static bool atomic_types_equal(const atomic_type_t *type1, static bool function_types_equal(const function_type_t *type1, const function_type_t *type2) { - if(type1->return_type != type2->return_type) + if (type1->return_type != type2->return_type) return false; - if(type1->variadic != type2->variadic) + if (type1->variadic != type2->variadic) return false; - if(type1->unspecified_parameters != type2->unspecified_parameters) + if (type1->unspecified_parameters != type2->unspecified_parameters) return false; - if(type1->kr_style_parameters != type2->kr_style_parameters) + if (type1->kr_style_parameters != type2->kr_style_parameters) + return false; + if (type1->calling_convention != type2->calling_convention) return false; function_parameter_t *param1 = type1->parameters; function_parameter_t *param2 = type2->parameters; - while(param1 != NULL && param2 != NULL) { - if(param1->type != param2->type) + 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; @@ -173,11 +234,18 @@ static bool pointer_types_equal(const pointer_type_t *type1, static bool array_types_equal(const array_type_t *type1, const array_type_t *type2) { - if(type1->element_type != type2->element_type) + if (type1->element_type != type2->element_type) + return false; + if (type1->is_variable != type2->is_variable) return false; - if(type1->is_variable != type2->is_variable) + if (type1->is_static != type2->is_static) return false; - if(type1->is_static != type2->is_static) + if (type1->size_constant != type2->size_constant) + return false; + + /* 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... */ @@ -212,9 +280,9 @@ static bool typedef_types_equal(const typedef_type_t *type1, static bool typeof_types_equal(const typeof_type_t *type1, const typeof_type_t *type2) { - if(type1->expression != type2->expression) + if (type1->expression != type2->expression) return false; - if(type1->typeof_type != type2->typeof_type) + if (type1->typeof_type != type2->typeof_type) return false; return true; @@ -223,7 +291,7 @@ static bool typeof_types_equal(const typeof_type_t *type1, static bool bitfield_types_equal(const bitfield_type_t *type1, const bitfield_type_t *type2) { - if(type1->base != type2->base) + if (type1->base_type != type2->base_type) return false; /* TODO: compare size expression */ return false; @@ -231,18 +299,27 @@ static bool bitfield_types_equal(const bitfield_type_t *type1, static bool types_equal(const type_t *type1, const type_t *type2) { - if(type1 == type2) + if (type1 == type2) return true; - if(type1->kind != type2->kind) + if (type1->kind != type2->kind) return false; - if(type1->base.qualifiers != type2->base.qualifiers) + if (type1->base.qualifiers != type2->base.qualifiers) + return false; + if (type1->base.modifiers != type2->base.modifiers) return false; - switch(type1->kind) { + 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->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->enumt, &type2->enumt); case TYPE_COMPOUND_STRUCT: @@ -286,6 +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"