X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast2firm.c;h=e081b1d9b2be6b7609e4ad63b71ac7049bbc64f5;hb=315d496108eb191418160aea57f3ab916e5770dc;hp=f1fc7e37e2f84e51e3dcb0c730be4a8da7df3f10;hpb=2db8d343a6af5cbda30303d98ff956be7976a991;p=cparser diff --git a/ast2firm.c b/ast2firm.c index f1fc7e3..e081b1d 100644 --- a/ast2firm.c +++ b/ast2firm.c @@ -16,13 +16,14 @@ #include "token_t.h" #include "type_t.h" #include "ast_t.h" +#include "parser.h" #define MAGIC_DEFAULT_PN_NUMBER (long) -314159265 static ir_type *ir_type_const_char; +static ir_type *ir_type_wchar_t; static ir_type *ir_type_void; static ir_type *ir_type_int; -static ir_type *ir_type_void_ptr; static type_t *type_const_char; static type_t *type_void; @@ -35,6 +36,11 @@ static ir_node *current_switch_cond; static bool saw_default_label; static ir_node **imature_blocks; +static const declaration_t *current_function_decl; +static ir_node *current_function_name; + +static struct obstack asm_obst; + typedef enum declaration_type_t { DECLARATION_TYPE_UNKNOWN, DECLARATION_TYPE_FUNCTION, @@ -43,6 +49,7 @@ typedef enum declaration_type_t { DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY, DECLARATION_TYPE_COMPOUND_MEMBER, DECLARATION_TYPE_LABEL_BLOCK, + DECLARATION_TYPE_ENUM_ENTRY } declaration_type_t; static ir_type *get_ir_type(type_t *type); @@ -70,7 +77,7 @@ unsigned dbg_snprint(char *buf, unsigned len, const dbg_info *dbg) pos->linenr); } -const char *retrieve_dbg(const dbg_info *dbg, unsigned *line) +const char *dbg_retrieve(const dbg_info *dbg, unsigned *line) { const source_position_t *pos = (const source_position_t*) dbg; if(pos == NULL) @@ -82,22 +89,12 @@ const char *retrieve_dbg(const dbg_info *dbg, unsigned *line) void init_ast2firm(void) { - type_const_char = make_atomic_type(ATOMIC_TYPE_CHAR, TYPE_QUALIFIER_CONST); - type_void = make_atomic_type(ATOMIC_TYPE_VOID, TYPE_QUALIFIER_NONE); - type_int = make_atomic_type(ATOMIC_TYPE_INT, TYPE_QUALIFIER_NONE); - - ir_type_int = get_ir_type(type_int); - ir_type_const_char = get_ir_type(type_const_char); - ir_type_void = get_ir_type(type_int); /* we don't have a real void - type in firm */ - ir_type_void_ptr = new_type_pointer(new_id_from_str("void_ptr"), - ir_type_void, mode_P_data); - - type_void->firm_type = ir_type_void; + obstack_init(&asm_obst); } void exit_ast2firm(void) { + obstack_free(&asm_obst, NULL); } static unsigned unique_id = 0; @@ -106,7 +103,7 @@ static ident *unique_ident(const char *tag) { char buf[256]; - snprintf(buf, sizeof(buf), "%s.%d", tag, unique_id); + snprintf(buf, sizeof(buf), "%s.%u", tag, unique_id); unique_id++; return new_id_from_str(buf); } @@ -123,6 +120,7 @@ static ir_mode *get_atomic_mode(const atomic_type_t* atomic_type) return mode_Hs; case ATOMIC_TYPE_USHORT: return mode_Hu; + case ATOMIC_TYPE_BOOL: case ATOMIC_TYPE_LONG: case ATOMIC_TYPE_INT: return mode_Is; @@ -139,8 +137,6 @@ static ir_mode *get_atomic_mode(const atomic_type_t* atomic_type) return mode_D; case ATOMIC_TYPE_LONG_DOUBLE: return mode_E; - case ATOMIC_TYPE_BOOL: - return mode_b; #ifdef PROVIDE_COMPLEX case ATOMIC_TYPE_FLOAT_COMPLEX: case ATOMIC_TYPE_DOUBLE_COMPLEX: @@ -204,13 +200,13 @@ static unsigned get_atomic_type_size(const atomic_type_t *type) static unsigned get_compound_type_size(compound_type_t *type) { - ir_type *irtype = get_ir_type(&type->type); + ir_type *irtype = get_ir_type((type_t*) type); return get_type_size_bytes(irtype); } static unsigned get_array_type_size(array_type_t *type) { - ir_type *irtype = get_ir_type(&type->type); + ir_type *irtype = get_ir_type((type_t*) type); return get_type_size_bytes(irtype); } @@ -220,20 +216,21 @@ static unsigned get_type_size(type_t *type) switch(type->type) { case TYPE_ATOMIC: - return get_atomic_type_size((const atomic_type_t*) type); + return get_atomic_type_size(&type->atomic); case TYPE_ENUM: return get_mode_size_bytes(mode_Is); case TYPE_COMPOUND_UNION: case TYPE_COMPOUND_STRUCT: - return get_compound_type_size((compound_type_t*) type); + return get_compound_type_size(&type->compound); case TYPE_FUNCTION: /* just a pointer to the function */ return get_mode_size_bytes(mode_P_code); case TYPE_POINTER: return get_mode_size_bytes(mode_P_data); case TYPE_ARRAY: - return get_array_type_size((array_type_t*) type); + return get_array_type_size(&type->array); case TYPE_BUILTIN: + return get_type_size(type->builtin.real_type); case TYPE_TYPEDEF: case TYPE_TYPEOF: case TYPE_INVALID: @@ -265,20 +262,24 @@ static ir_type *create_atomic_type(const atomic_type_t *type) ident *id = get_mode_ident(mode); ir_type *irtype = new_type_primitive(id, mode); + if(type->atype == ATOMIC_TYPE_LONG_DOUBLE) { + set_type_alignment_bytes(irtype, 4); + } + return irtype; } static ir_type *create_method_type(const function_type_t *function_type) { - type_t *result_type = function_type->result_type; + type_t *return_type = function_type->return_type; ident *id = unique_ident("functiontype"); int n_parameters = count_parameters(function_type); - int n_results = result_type == type_void ? 0 : 1; + int n_results = return_type == type_void ? 0 : 1; ir_type *irtype = new_type_method(id, n_parameters, n_results); - if(result_type != type_void) { - ir_type *restype = get_ir_type(result_type); + if(return_type != type_void) { + ir_type *restype = get_ir_type(return_type); set_method_res_type(irtype, 0, restype); } @@ -368,8 +369,9 @@ static ir_type *create_struct_type(compound_type_t *type) int entry_size = get_type_size_bytes(entry_ir_type); int entry_alignment = get_type_alignment_bytes(entry_ir_type); - int misalign = offset % entry_alignment; - offset += misalign; + int misalign = offset % entry_alignment; + if (misalign != 0) + offset += entry_alignment - misalign; ir_entity *entity = new_entity(ir_type, ident, entry_ir_type); set_entity_offset(entity, offset); @@ -446,41 +448,76 @@ static ir_type *create_union_type(compound_type_t *type) return ir_type; } +static ir_node *expression_to_firm(const expression_t *expression); +static inline ir_mode *get_ir_mode(type_t *type); + +static ir_type *create_enum_type(enum_type_t *const type) +{ + type->type.firm_type = ir_type_int; + + ir_mode *const mode = get_ir_mode((type_t*) type); + tarval *const one = get_mode_one(mode); + tarval * tv_next = get_tarval_null(mode); + + declaration_t *declaration = type->declaration->next; + for (; declaration != NULL; declaration = declaration->next) { + if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY) + break; + + declaration->declaration_type = DECLARATION_TYPE_ENUM_ENTRY; + + expression_t *const init = declaration->init.enum_value; + if (init != NULL) { + ir_node *const cnst = expression_to_firm(init); + if (!is_Const(cnst)) { + panic("couldn't fold constant"); + } + tv_next = get_Const_tarval(cnst); + } + declaration->v.enum_val = tv_next; + tv_next = tarval_add(tv_next, one); + } + + return ir_type_int; +} + static ir_type *get_ir_type(type_t *type) { assert(type != NULL); type = skip_typeref(type); - if(type->firm_type != NULL) { - assert(type->firm_type != INVALID_TYPE); - return type->firm_type; + if(type->base.firm_type != NULL) { + assert(type->base.firm_type != INVALID_TYPE); + return type->base.firm_type; } ir_type *firm_type = NULL; switch(type->type) { case TYPE_ATOMIC: - firm_type = create_atomic_type((atomic_type_t*) type); + firm_type = create_atomic_type(&type->atomic); break; case TYPE_FUNCTION: - firm_type = create_method_type((function_type_t*) type); + firm_type = create_method_type(&type->function); break; case TYPE_POINTER: - firm_type = create_pointer_type((pointer_type_t*) type); + firm_type = create_pointer_type(&type->pointer); break; case TYPE_ARRAY: - firm_type = create_array_type((array_type_t*) type); + firm_type = create_array_type(&type->array); break; case TYPE_COMPOUND_STRUCT: - firm_type = create_struct_type((compound_type_t*) type); + firm_type = create_struct_type(&type->compound); break; case TYPE_COMPOUND_UNION: - firm_type = create_union_type((compound_type_t*) type); + firm_type = create_union_type(&type->compound); break; case TYPE_ENUM: - firm_type = ir_type_int; + firm_type = create_enum_type(&type->enumt); break; case TYPE_BUILTIN: + firm_type = get_ir_type(type->builtin.real_type); + break; case TYPE_TYPEOF: case TYPE_TYPEDEF: case TYPE_INVALID: @@ -489,7 +526,7 @@ static ir_type *get_ir_type(type_t *type) if(firm_type == NULL) panic("unknown type found"); - type->firm_type = firm_type; + type->base.firm_type = firm_type; return firm_type; } @@ -530,6 +567,7 @@ static ir_entity* get_function_entity(declaration_t *declaration) } else { set_entity_visibility(entity, visibility_external_allocated); } + set_entity_allocation(entity, allocation_static); declaration->declaration_type = DECLARATION_TYPE_FUNCTION; declaration->v.entity = entity; @@ -537,25 +575,29 @@ static ir_entity* get_function_entity(declaration_t *declaration) return entity; } - - -static ir_node *expression_to_firm(const expression_t *expression); - static dbg_info *get_dbg_info(const source_position_t *pos) { return (dbg_info*) pos; } -static ir_node *const_to_firm(const const_t *cnst) +static ir_node *const_to_firm(const const_expression_t *cnst) { dbg_info *dbgi = get_dbg_info(&cnst->expression.source_position); ir_mode *mode = get_ir_mode(cnst->expression.datatype); - tarval *tv; + char buf[128]; + tarval *tv; + size_t len; if(mode_is_float(mode)) { tv = new_tarval_from_double(cnst->v.float_value, mode); } else { - tv = new_tarval_from_long(cnst->v.int_value, mode); + if(mode_is_signed(mode)) { + len = snprintf(buf, sizeof(buf), "%lld", cnst->v.int_value); + } else { + len = snprintf(buf, sizeof(buf), "%llu", + (unsigned long long) cnst->v.int_value); + } + tv = new_tarval_from_str(buf, len, mode); } return new_d_Const(dbgi, mode, tv); @@ -569,29 +611,75 @@ static ir_node *create_symconst(dbg_info *dbgi, ir_entity *entity) return new_d_SymConst(dbgi, sym, symconst_addr_ent); } -static ir_node *string_literal_to_firm(const string_literal_t* literal) +static ir_node *string_to_firm(const source_position_t *const src_pos, + const char *const id_prefix, + const char *const string) { - ir_type *global_type = get_glob_type(); - ir_type *type = new_type_array(unique_ident("strtype"), 1, - ir_type_const_char); + ir_type *const global_type = get_glob_type(); + ir_type *const type = new_type_array(unique_ident("strtype"), 1, + ir_type_const_char); + + ident *const id = unique_ident(id_prefix); + ir_entity *const entity = new_entity(global_type, id, type); + set_entity_ld_ident(entity, id); + set_entity_variability(entity, variability_constant); + set_entity_allocation(entity, allocation_static); + + ir_type *const elem_type = ir_type_const_char; + ir_mode *const mode = get_type_mode(elem_type); + + const size_t slen = strlen(string) + 1; + + set_array_lower_bound_int(type, 0, 0); + set_array_upper_bound_int(type, 0, slen); + set_type_size_bytes(type, slen); + set_type_state(type, layout_fixed); + + tarval **const tvs = xmalloc(slen * sizeof(tvs[0])); + for(size_t i = 0; i < slen; ++i) { + tvs[i] = new_tarval_from_long(string[i], mode); + } + + set_array_entity_values(entity, tvs, slen); + free(tvs); + + dbg_info *const dbgi = get_dbg_info(src_pos); + + return create_symconst(dbgi, entity); +} + +static ir_node *string_literal_to_firm( + const string_literal_expression_t* literal) +{ + return string_to_firm(&literal->expression.source_position, "Lstr", + literal->value); +} + +static ir_node *wide_string_literal_to_firm( + const wide_string_literal_expression_t* const literal) +{ + ir_type *const global_type = get_glob_type(); + ir_type *const elem_type = ir_type_wchar_t; + ir_type *const type = new_type_array(unique_ident("strtype"), 1, + elem_type); - ident *id = unique_ident("Lstr"); - ir_entity *entity = new_entity(global_type, id, type); + ident *const id = unique_ident("Lstr"); + ir_entity *const entity = new_entity(global_type, id, type); set_entity_ld_ident(entity, id); set_entity_variability(entity, variability_constant); + set_entity_allocation(entity, allocation_static); - ir_type *elem_type = ir_type_const_char; - ir_mode *mode = get_type_mode(elem_type); + ir_mode *const mode = get_type_mode(elem_type); - const char *string = literal->value; - size_t slen = strlen(string) + 1; + const wchar_rep_t *const string = literal->value.begin; + const size_t slen = literal->value.size; set_array_lower_bound_int(type, 0, 0); set_array_upper_bound_int(type, 0, slen); set_type_size_bytes(type, slen); set_type_state(type, layout_fixed); - tarval **tvs = xmalloc(slen * sizeof(tvs[0])); + tarval **const tvs = xmalloc(slen * sizeof(tvs[0])); for(size_t i = 0; i < slen; ++i) { tvs[i] = new_tarval_from_long(string[i], mode); } @@ -599,29 +687,64 @@ static ir_node *string_literal_to_firm(const string_literal_t* literal) set_array_entity_values(entity, tvs, slen); free(tvs); - dbg_info *dbgi = get_dbg_info(&literal->expression.source_position); + dbg_info *const dbgi = get_dbg_info(&literal->expression.source_position); return create_symconst(dbgi, entity); } -static ir_node *deref_address(type_t *const type, ir_node *const addr, +static ir_node *deref_address(ir_type *const irtype, ir_node *const addr, dbg_info *const dbgi) { - switch (type->type) { - case TYPE_ARRAY: - case TYPE_COMPOUND_STRUCT: - case TYPE_COMPOUND_UNION: - return addr; - - default: { - ir_mode *const mode = get_ir_mode(type); - ir_node *const memory = get_store(); - ir_node *const load = new_d_Load(dbgi, memory, addr, mode); - ir_node *const load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M); - ir_node *const load_res = new_d_Proj(dbgi, load, mode, pn_Load_res); - set_store(load_mem); - return load_res; + if(is_compound_type(irtype) || is_Array_type(irtype)) { + return addr; + } + + ir_mode *const mode = get_type_mode(irtype); + ir_node *const memory = get_store(); + ir_node *const load = new_d_Load(dbgi, memory, addr, mode); + ir_node *const load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M); + ir_node *const load_res = new_d_Proj(dbgi, load, mode, pn_Load_res); + set_store(load_mem); + return load_res; +} + +static ir_node *do_strict_conv(dbg_info *dbgi, ir_node *node) +{ + ir_mode *mode = get_irn_mode(node); + + if(!(get_irg_fp_model(current_ir_graph) & fp_explicit_rounding)) + return node; + if(!mode_is_float(mode)) + return node; + + /* check if there is already a Conv */ + if (get_irn_op(node) == op_Conv) { + /* convert it into a strict Conv */ + set_Conv_strict(node, 1); + return node; + } + + /* otherwise create a new one */ + return new_d_strictConv(dbgi, node, mode); +} + +static ir_node *get_global_var_address(dbg_info *const dbgi, + const declaration_t *const decl) +{ + assert(decl->declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE); + + ir_entity *const entity = decl->v.entity; + switch ((storage_class_tag_t)decl->storage_class) { + case STORAGE_CLASS_THREAD: + case STORAGE_CLASS_THREAD_EXTERN: + case STORAGE_CLASS_THREAD_STATIC: { + ir_node *const no_mem = new_NoMem(); + ir_node *const tls = get_irg_tls(current_ir_graph); + return new_d_simpleSel(dbgi, no_mem, tls, entity); } + + default: + return create_symconst(dbgi, entity); } } @@ -633,7 +756,17 @@ static ir_node *reference_expression_to_firm(const reference_expression_t *ref) switch((declaration_type_t) declaration->declaration_type) { case DECLARATION_TYPE_UNKNOWN: - break; + if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY) { + break; + } + get_ir_type(type); + /* FALLTHROUGH */ + + case DECLARATION_TYPE_ENUM_ENTRY: { + ir_mode *const mode = get_ir_mode(type); + return new_Const(mode, declaration->v.enum_val); + } + case DECLARATION_TYPE_LOCAL_VARIABLE: { ir_mode *mode = get_ir_mode(type); return get_value(declaration->v.value_number, mode); @@ -642,15 +775,17 @@ static ir_node *reference_expression_to_firm(const reference_expression_t *ref) return create_symconst(dbgi, declaration->v.entity); } case DECLARATION_TYPE_GLOBAL_VARIABLE: { - ir_entity *entity = declaration->v.entity; - ir_node *symconst = create_symconst(dbgi, entity); - return deref_address(type, symconst, dbgi); + ir_node *const addr = get_global_var_address(dbgi, declaration); + ir_type *const irtype = get_entity_type(declaration->v.entity); + return deref_address(irtype, addr, dbgi); } + case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY: { ir_entity *entity = declaration->v.entity; ir_node *frame = get_irg_frame(current_ir_graph); ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity); - return deref_address(type, sel, dbgi); + ir_type *irtype = get_entity_type(entity); + return deref_address(irtype, sel, dbgi); } case DECLARATION_TYPE_COMPOUND_MEMBER: @@ -675,9 +810,8 @@ static ir_node *reference_addr(const reference_expression_t *ref) return create_symconst(dbgi, declaration->v.entity); } case DECLARATION_TYPE_GLOBAL_VARIABLE: { - ir_entity *entity = declaration->v.entity; - ir_node *symconst = create_symconst(dbgi, entity); - return symconst; + ir_node *const addr = get_global_var_address(dbgi, declaration); + return addr; } case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY: { ir_entity *entity = declaration->v.entity; @@ -686,6 +820,10 @@ static ir_node *reference_addr(const reference_expression_t *ref) return sel; } + + case DECLARATION_TYPE_ENUM_ENTRY: + panic("trying to reference enum entry"); + case DECLARATION_TYPE_COMPOUND_MEMBER: case DECLARATION_TYPE_LABEL_BLOCK: panic("not implemented reference type"); @@ -694,22 +832,69 @@ static ir_node *reference_addr(const reference_expression_t *ref) panic("reference to declaration with unknown type found"); } +static ir_node *process_builtin_call(const call_expression_t *call) +{ + dbg_info *dbgi = get_dbg_info(&call->expression.source_position); + + assert(call->function->type == EXPR_BUILTIN_SYMBOL); + builtin_symbol_expression_t *builtin = &call->function->builtin_symbol; + + type_t *type = skip_typeref(builtin->expression.datatype); + assert(is_type_pointer(type)); + + type_t *function_type = skip_typeref(type->pointer.points_to); + symbol_t *symbol = builtin->symbol; + + switch(symbol->ID) { + case T___builtin_alloca: { + if(call->arguments == NULL || call->arguments->next != NULL) { + panic("invalid number of parameters on __builtin_alloca"); + } + expression_t *argument = call->arguments->expression; + ir_node *size = expression_to_firm(argument); + + ir_node *store = get_store(); + ir_node *alloca = new_d_Alloc(dbgi, store, size, firm_unknown_type, + stack_alloc); + ir_node *proj_m = new_Proj(alloca, mode_M, pn_Alloc_M); + set_store(proj_m); + ir_node *res = new_Proj(alloca, mode_P_data, pn_Alloc_res); + + return res; + } + case T___builtin_nan: + case T___builtin_nanf: + case T___builtin_nand: { + /* Ignore string for now... */ + assert(is_type_function(function_type)); + ir_mode *mode = get_ir_mode(function_type->function.return_type); + tarval *tv = get_mode_NAN(mode); + ir_node *res = new_d_Const(dbgi, mode, tv); + return res; + } + case T___builtin_va_end: + return NULL; + default: + panic("Unsupported builtin found\n"); + } +} + static ir_node *call_expression_to_firm(const call_expression_t *call) { assert(get_cur_block() != NULL); - expression_t *function = call->function; - ir_node *callee = expression_to_firm(function); - - function_type_t *function_type; - if (function->datatype->type == TYPE_POINTER) { - pointer_type_t *const ptr_type = (pointer_type_t*)function->datatype; - assert(ptr_type->points_to->type == TYPE_FUNCTION); - function_type = (function_type_t*)ptr_type->points_to; - } else { - assert(function->datatype->type == TYPE_FUNCTION); - function_type = (function_type_t*)function->datatype; + expression_t *function = call->function; + if(function->type == EXPR_BUILTIN_SYMBOL) { + return process_builtin_call(call); } + ir_node *callee = expression_to_firm(function); + + type_t *type = skip_typeref(function->base.datatype); + assert(is_type_pointer(type)); + pointer_type_t *pointer_type = &type->pointer; + type_t *points_to = skip_typeref(pointer_type->points_to); + assert(is_type_function(points_to)); + function_type_t *function_type = &points_to->function; int n_parameters = 0; call_argument_t *argument = call->arguments; @@ -717,6 +902,8 @@ static ir_node *call_expression_to_firm(const call_expression_t *call) ++n_parameters; } + dbg_info *dbgi = get_dbg_info(&call->expression.source_position); + ir_type *ir_method_type = get_ir_type((type_t*) function_type); ir_type *new_method_type = NULL; if(function_type->variadic || function_type->unspecified_parameters) { @@ -743,9 +930,11 @@ static ir_node *call_expression_to_firm(const call_expression_t *call) expression_t *expression = argument->expression; ir_node *arg_node = expression_to_firm(expression); + arg_node = do_strict_conv(dbgi, arg_node); + in[n] = arg_node; if(new_method_type != NULL) { - ir_type *irtype = get_ir_type(expression->datatype); + ir_type *irtype = get_ir_type(expression->base.datatype); set_method_param_type(new_method_type, n, irtype); } @@ -756,17 +945,22 @@ static ir_node *call_expression_to_firm(const call_expression_t *call) if(new_method_type != NULL) ir_method_type = new_method_type; - dbg_info *dbgi = get_dbg_info(&call->expression.source_position); ir_node *store = get_store(); ir_node *node = new_d_Call(dbgi, store, callee, n_parameters, in, ir_method_type); ir_node *mem = new_d_Proj(dbgi, node, mode_M, pn_Call_M_regular); set_store(mem); - type_t *result_type = function_type->result_type; + type_t *return_type = skip_typeref(function_type->return_type); ir_node *result = NULL; - if(result_type != type_void) { - ir_mode *mode = get_ir_mode(result_type); + + if(!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) { + ir_mode *mode; + if(is_type_scalar(return_type)) { + mode = get_ir_mode(return_type); + } else { + mode = mode_P_data; + } ir_node *resproj = new_d_Proj(dbgi, node, mode_T, pn_Call_T_result); result = new_d_Proj(dbgi, resproj, mode, 0); } @@ -774,14 +968,39 @@ static ir_node *call_expression_to_firm(const call_expression_t *call) return result; } +static void statement_to_firm(statement_t *statement); +static ir_node *compound_statement_to_firm(compound_statement_t *compound); + static ir_node *expression_to_addr(const expression_t *expression); static void create_condition_evaluation(const expression_t *expression, ir_node *true_block, ir_node *false_block); +static void assign_value(dbg_info *dbgi, ir_node *addr, type_t *type, + ir_node *value) +{ + value = do_strict_conv(dbgi, value); + + ir_node *memory = get_store(); + + if(is_type_scalar(type)) { + ir_node *store = new_d_Store(dbgi, memory, addr, value); + ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M); + set_store(store_mem); + } else { + ir_type *irtype = get_ir_type(type); + ir_node *copyb = new_d_CopyB(dbgi, memory, addr, value, irtype); + ir_node *copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular); + set_store(copyb_mem); + } +} + static void set_value_for_expression(const expression_t *expression, ir_node *value) { + dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + value = do_strict_conv(dbgi, value); + if(expression->type == EXPR_REFERENCE) { reference_expression_t *ref = (reference_expression_t*) expression; @@ -793,20 +1012,16 @@ static void set_value_for_expression(const expression_t *expression, } } - dbg_info *dbgi = get_dbg_info(&expression->source_position); - ir_node *addr = expression_to_addr(expression); - assert(get_irn_mode(value) == get_ir_mode(expression->datatype)); - ir_node *memory = get_store(); - ir_node *store = new_d_Store(dbgi, memory, addr, value); - ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M); - set_store(store_mem); + ir_node *addr = expression_to_addr(expression); + type_t *type = skip_typeref(expression->base.datatype); + assign_value(dbgi, addr, type, value); } static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode) { ir_mode *value_mode = get_irn_mode(value); - if(value_mode == dest_mode) + if (value_mode == dest_mode || is_Bad(value)) return value; if(dest_mode == mode_b) { @@ -822,15 +1037,15 @@ static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode) static ir_node *create_incdec(const unary_expression_t *expression) { dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); - type_t *type = expression->expression.datatype; + type_t *type = skip_typeref(expression->expression.datatype); ir_mode *mode = get_ir_mode(type); expression_t *value = expression->value; ir_node *value_node = expression_to_firm(value); ir_node *offset; - if(type->type == TYPE_POINTER) { - pointer_type_t *pointer_type = (pointer_type_t*) type; + if(is_type_pointer(type)) { + pointer_type_t *pointer_type = &type->pointer; unsigned elem_size = get_type_size(pointer_type->points_to); offset = new_Const_long(mode_Is, elem_size); } else { @@ -838,90 +1053,104 @@ static ir_node *create_incdec(const unary_expression_t *expression) offset = new_Const(mode, get_mode_one(mode)); } - ir_node *new_value; - switch(expression->type) { - case UNEXPR_POSTFIX_INCREMENT: { + switch(expression->expression.type) { + case EXPR_UNARY_POSTFIX_INCREMENT: { ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode); set_value_for_expression(value, new_value); return value_node; } - case UNEXPR_POSTFIX_DECREMENT: { + case EXPR_UNARY_POSTFIX_DECREMENT: { ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode); set_value_for_expression(value, new_value); return value_node; } - case UNEXPR_PREFIX_INCREMENT: { + case EXPR_UNARY_PREFIX_INCREMENT: { ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode); set_value_for_expression(value, new_value); return new_value; } - case UNEXPR_PREFIX_DECREMENT: { + case EXPR_UNARY_PREFIX_DECREMENT: { ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode); set_value_for_expression(value, new_value); return new_value; } default: panic("no incdec expr in create_incdec"); + return NULL; } - - return new_value; } static ir_node *unary_expression_to_firm(const unary_expression_t *expression) { dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); - type_t *type = expression->expression.datatype; + type_t *type = skip_typeref(expression->expression.datatype); + ir_mode *mode = get_ir_mode(type); - if(expression->type == UNEXPR_TAKE_ADDRESS) + if(expression->expression.type == EXPR_UNARY_TAKE_ADDRESS) return expression_to_addr(expression->value); const expression_t *value = expression->value; ir_node *value_node = expression_to_firm(value); - switch(expression->type) { - case UNEXPR_NEGATE: - return new_d_Minus(dbgi, value_node, get_ir_mode(type)); - case UNEXPR_PLUS: + switch(expression->expression.type) { + case EXPR_UNARY_NEGATE: + return new_d_Minus(dbgi, value_node, mode); + case EXPR_UNARY_PLUS: return value_node; - case UNEXPR_BITWISE_NEGATE: - return new_d_Not(dbgi, value_node, get_ir_mode(type)); - case UNEXPR_NOT: { + case EXPR_UNARY_BITWISE_NEGATE: + return new_d_Not(dbgi, value_node, mode); + case EXPR_UNARY_NOT: { if(get_irn_mode(value_node) != mode_b) { value_node = create_conv(dbgi, value_node, mode_b); } value_node = new_d_Not(dbgi, value_node, mode_b); - ir_mode *const mode = get_ir_mode(type); if(mode != mode_b) { value_node = create_conv(dbgi, value_node, mode); } return value_node; } - case UNEXPR_DEREFERENCE: - return deref_address(type, value_node, dbgi); - case UNEXPR_POSTFIX_INCREMENT: - case UNEXPR_POSTFIX_DECREMENT: - case UNEXPR_PREFIX_INCREMENT: - case UNEXPR_PREFIX_DECREMENT: + case EXPR_UNARY_DEREFERENCE: { + type_t *value_type = skip_typeref(value->base.datatype); + ir_type *irtype = get_ir_type(value_type); + assert(is_Pointer_type(irtype)); + ir_type *points_to = get_pointer_points_to_type(irtype); + return deref_address(points_to, value_node, dbgi); + } + case EXPR_UNARY_POSTFIX_INCREMENT: + case EXPR_UNARY_POSTFIX_DECREMENT: + case EXPR_UNARY_PREFIX_INCREMENT: + case EXPR_UNARY_PREFIX_DECREMENT: return create_incdec(expression); - case UNEXPR_CAST: + case EXPR_UNARY_CAST: { + ir_node *node = create_conv(dbgi, value_node, get_ir_mode(type)); + node = do_strict_conv(dbgi, node); + return node; + } + case EXPR_UNARY_CAST_IMPLICIT: return create_conv(dbgi, value_node, get_ir_mode(type)); - case UNEXPR_TAKE_ADDRESS: - case UNEXPR_INVALID: + default: break; } panic("invalid UNEXPR type found"); } -static long get_pnc(binary_expression_type_t type) +static long get_pnc(const expression_type_t type) { switch(type) { - case BINEXPR_EQUAL: return pn_Cmp_Eq; - case BINEXPR_NOTEQUAL: return pn_Cmp_Lg; - case BINEXPR_LESS: return pn_Cmp_Lt; - case BINEXPR_LESSEQUAL: return pn_Cmp_Le; - case BINEXPR_GREATER: return pn_Cmp_Gt; - case BINEXPR_GREATEREQUAL: return pn_Cmp_Ge; + case EXPR_BINARY_EQUAL: return pn_Cmp_Eq; + case EXPR_BINARY_ISLESSGREATER: return pn_Cmp_Lg; + case EXPR_BINARY_NOTEQUAL: return pn_Cmp_Ne; + case EXPR_BINARY_ISLESS: + case EXPR_BINARY_LESS: return pn_Cmp_Lt; + case EXPR_BINARY_ISLESSEQUAL: + case EXPR_BINARY_LESSEQUAL: return pn_Cmp_Le; + case EXPR_BINARY_ISGREATER: + case EXPR_BINARY_GREATER: return pn_Cmp_Gt; + case EXPR_BINARY_ISGREATEREQUAL: + case EXPR_BINARY_GREATEREQUAL: return pn_Cmp_Ge; + case EXPR_BINARY_ISUNORDERED: return pn_Cmp_Uo; + default: break; } @@ -970,9 +1199,9 @@ static ir_node *create_arithmetic_binop(const binary_expression_t *expression, dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); ir_node *left = expression_to_firm(expression->left); ir_node *right = expression_to_firm(expression->right); - type_t *type = expression->right->datatype; - /* be careful with the modes, because in asithmetic assign nodes only - * the right operand has the mode of the arithmetic alread */ + type_t *type = expression->right->base.datatype; + /* be careful with the modes, because in arithmetic assign nodes only + * the right operand has the mode of the arithmetic already */ ir_mode *mode = get_ir_mode(type); left = create_conv(dbgi, left, mode); ir_node *res = func(dbgi, left, right, mode); @@ -1006,10 +1235,10 @@ static ir_node *create_arithmetic_assign_binop( const binary_expression_t *expression, create_arithmetic_func func) { dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position); - type_t *const type = expression->expression.datatype; + type_t *const type = skip_typeref(expression->expression.datatype); ir_node *value; - if (type->type == TYPE_POINTER) { + if (is_type_pointer(type)) { ir_node *const pointer = expression_to_firm(expression->left); ir_node * integer = expression_to_firm(expression->right); value = pointer_arithmetic(pointer, integer, type, dbgi, func); @@ -1033,18 +1262,18 @@ static ir_node *create_add(const binary_expression_t *expression) expression_t *expr_left = expression->left; expression_t *expr_right = expression->right; - type_t *type_left = skip_typeref(expr_left->datatype); - type_t *type_right = skip_typeref(expr_right->datatype); + type_t *type_left = skip_typeref(expr_left->base.datatype); + type_t *type_right = skip_typeref(expr_right->base.datatype); if(is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) { ir_mode *const mode = get_ir_mode(type); return new_d_Add(dbgi, left, right, mode); } - if (type_left->type == TYPE_POINTER || type_left->type == TYPE_ARRAY) { + if (is_type_pointer(type_left)) { return pointer_arithmetic(left, right, type, dbgi, new_d_Add); } else { - assert(type_right->type == TYPE_POINTER || type_right->type == TYPE_ARRAY); + assert(is_type_pointer(type_right)); return pointer_arithmetic(right, left, type, dbgi, new_d_Add); } } @@ -1057,16 +1286,25 @@ static ir_node *create_sub(const binary_expression_t *expression) ir_node *const left = expression_to_firm(expr_left); ir_node *const right = expression_to_firm(expr_right); type_t *const type = expression->expression.datatype; - type_t *const type_left = skip_typeref(expr_left->datatype); - type_t *const type_right = skip_typeref(expr_right->datatype); + type_t *const type_left = skip_typeref(expr_left->base.datatype); + type_t *const type_right = skip_typeref(expr_right->base.datatype); - if ((is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) || - (type_left->type == TYPE_POINTER && type_right->type == TYPE_POINTER)) { + if (is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) { ir_mode *const mode = get_ir_mode(type); return new_d_Sub(dbgi, left, right, mode); - } - - assert(type_left->type == TYPE_POINTER); + } else if (is_type_pointer(type_left) && is_type_pointer(type_right)) { + const pointer_type_t *const ptr_type = &type_left->pointer; + const unsigned elem_size = get_type_size(ptr_type->points_to); + ir_mode *const mode = get_ir_mode(type); + ir_node *const sub = new_d_Sub(dbgi, left, right, mode); + ir_node *const cnst = new_Const_long(mode_Is, (long)elem_size); + ir_node *const no_mem = new_NoMem(); + ir_node *const div = new_d_Div(dbgi, no_mem, sub, cnst, mode, + op_pin_state_floats); + return new_d_Proj(dbgi, div, mode, pn_Div_res); + } + + assert(is_type_pointer(type_left)); return pointer_arithmetic(left, right, type_left, dbgi, new_d_Sub); } @@ -1083,13 +1321,15 @@ static ir_node *create_shift(const binary_expression_t *expression) ir_node *res; - switch(expression->type) { - case BINEXPR_SHIFTLEFT: + switch(expression->expression.type) { + case EXPR_BINARY_SHIFTLEFT_ASSIGN: + case EXPR_BINARY_SHIFTLEFT: res = new_d_Shl(dbgi, left, right, mode); break; - case BINEXPR_SHIFTRIGHT: { + case EXPR_BINARY_SHIFTRIGHT_ASSIGN: + case EXPR_BINARY_SHIFTRIGHT: { expression_t *expr_left = expression->left; - type_t *type_left = skip_typeref(expr_left->datatype); + type_t *type_left = skip_typeref(expr_left->base.datatype); if(is_type_signed(type_left)) { res = new_d_Shrs(dbgi, left, right, mode); @@ -1112,31 +1352,34 @@ static ir_node *create_divmod(const binary_expression_t *expression) ir_node *left = expression_to_firm(expression->left); ir_node *right = expression_to_firm(expression->right); ir_node *pin = new_Pin(new_NoMem()); - type_t *type = expression->expression.datatype; + /* be careful with the modes, because in arithmetic assign nodes only + * the right operand has the mode of the arithmetic already */ + type_t *type = expression->right->base.datatype; ir_mode *mode = get_ir_mode(type); + left = create_conv(dbgi, left, mode); ir_node *op; ir_node *res; - switch (expression->type) { - case BINEXPR_DIV: - case BINEXPR_DIV_ASSIGN: - if(mode_is_float(mode)) { - op = new_d_Quot(dbgi, pin, left, right, mode, op_pin_state_floats); - res = new_d_Proj(dbgi, op, mode, pn_Quot_res); - } else { - op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats); - res = new_d_Proj(dbgi, op, mode, pn_Div_res); - } - break; + switch (expression->expression.type) { + case EXPR_BINARY_DIV: + case EXPR_BINARY_DIV_ASSIGN: + if(mode_is_float(mode)) { + op = new_d_Quot(dbgi, pin, left, right, mode, op_pin_state_floats); + res = new_d_Proj(dbgi, op, mode, pn_Quot_res); + } else { + op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats); + res = new_d_Proj(dbgi, op, mode, pn_Div_res); + } + break; - case BINEXPR_MOD: - case BINEXPR_MOD_ASSIGN: - assert(!mode_is_float(mode)); - op = new_d_Mod(dbgi, pin, left, right, mode, op_pin_state_floats); - res = new_d_Proj(dbgi, op, mode, pn_Mod_res); - break; + case EXPR_BINARY_MOD: + case EXPR_BINARY_MOD_ASSIGN: + assert(!mode_is_float(mode)); + op = new_d_Mod(dbgi, pin, left, right, mode, op_pin_state_floats); + res = new_d_Proj(dbgi, op, mode, pn_Mod_res); + break; - default: panic("unexpected binary expression type in create_divmod()"); + default: panic("unexpected binary expression type in create_divmod()"); } return res; @@ -1158,17 +1401,37 @@ static ir_node *create_arithmetic_assign_divmod( return value; } +static ir_node *create_arithmetic_assign_shift( + const binary_expression_t *expression) +{ + ir_node * value = create_shift(expression); + dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position); + type_t *const type = expression->expression.datatype; + ir_mode *const mode = get_ir_mode(type); + + value = create_conv(dbgi, value, mode); + set_value_for_expression(expression->left, value); + + return value; +} static ir_node *binary_expression_to_firm(const binary_expression_t *expression) { - binary_expression_type_t type = expression->type; + expression_type_t type = expression->expression.type; + switch(type) { - case BINEXPR_EQUAL: - case BINEXPR_NOTEQUAL: - case BINEXPR_LESS: - case BINEXPR_LESSEQUAL: - case BINEXPR_GREATER: - case BINEXPR_GREATEREQUAL: { + case EXPR_BINARY_EQUAL: + case EXPR_BINARY_NOTEQUAL: + case EXPR_BINARY_LESS: + case EXPR_BINARY_LESSEQUAL: + case EXPR_BINARY_GREATER: + case EXPR_BINARY_GREATEREQUAL: + case EXPR_BINARY_ISGREATER: + case EXPR_BINARY_ISGREATEREQUAL: + case EXPR_BINARY_ISLESS: + case EXPR_BINARY_ISLESSEQUAL: + case EXPR_BINARY_ISLESSGREATER: + case EXPR_BINARY_ISUNORDERED: { dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); ir_node *left = expression_to_firm(expression->left); ir_node *right = expression_to_firm(expression->right); @@ -1177,53 +1440,53 @@ static ir_node *binary_expression_to_firm(const binary_expression_t *expression) ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pnc); return proj; } - case BINEXPR_ASSIGN: { + case EXPR_BINARY_ASSIGN: { ir_node *right = expression_to_firm(expression->right); set_value_for_expression(expression->left, right); + return right; } - case BINEXPR_ADD: + case EXPR_BINARY_ADD: return create_add(expression); - case BINEXPR_SUB: + case EXPR_BINARY_SUB: return create_sub(expression); - case BINEXPR_MUL: + case EXPR_BINARY_MUL: return create_arithmetic_binop(expression, new_d_Mul); - case BINEXPR_BITWISE_AND: + case EXPR_BINARY_BITWISE_AND: return create_arithmetic_binop(expression, new_d_And); - case BINEXPR_BITWISE_OR: + case EXPR_BINARY_BITWISE_OR: return create_arithmetic_binop(expression, new_d_Or); - case BINEXPR_BITWISE_XOR: + case EXPR_BINARY_BITWISE_XOR: return create_arithmetic_binop(expression, new_d_Eor); - case BINEXPR_SHIFTLEFT: - case BINEXPR_SHIFTRIGHT: + case EXPR_BINARY_SHIFTLEFT: + case EXPR_BINARY_SHIFTRIGHT: return create_shift(expression); - case BINEXPR_DIV: - case BINEXPR_MOD: + case EXPR_BINARY_DIV: + case EXPR_BINARY_MOD: return create_divmod(expression); - case BINEXPR_LOGICAL_AND: - case BINEXPR_LOGICAL_OR: + case EXPR_BINARY_LOGICAL_AND: + case EXPR_BINARY_LOGICAL_OR: return create_lazy_op(expression); - case BINEXPR_COMMA: + case EXPR_BINARY_COMMA: expression_to_firm(expression->left); return expression_to_firm(expression->right); - case BINEXPR_ADD_ASSIGN: + case EXPR_BINARY_ADD_ASSIGN: return create_arithmetic_assign_binop(expression, new_d_Add); - case BINEXPR_SUB_ASSIGN: + case EXPR_BINARY_SUB_ASSIGN: return create_arithmetic_assign_binop(expression, new_d_Sub); - case BINEXPR_MUL_ASSIGN: + case EXPR_BINARY_MUL_ASSIGN: return create_arithmetic_assign_binop(expression, new_d_Mul); - case BINEXPR_DIV_ASSIGN: + case EXPR_BINARY_DIV_ASSIGN: return create_arithmetic_assign_divmod(expression); - case BINEXPR_BITWISE_AND_ASSIGN: + case EXPR_BINARY_BITWISE_AND_ASSIGN: return create_arithmetic_assign_binop(expression, new_d_And); - case BINEXPR_BITWISE_OR_ASSIGN: + case EXPR_BINARY_BITWISE_OR_ASSIGN: return create_arithmetic_assign_binop(expression, new_d_Or); - case BINEXPR_BITWISE_XOR_ASSIGN: + case EXPR_BINARY_BITWISE_XOR_ASSIGN: return create_arithmetic_assign_binop(expression, new_d_Eor); - case BINEXPR_SHIFTLEFT_ASSIGN: - return create_arithmetic_assign_binop(expression, new_d_Shl); - case BINEXPR_SHIFTRIGHT_ASSIGN: - return create_arithmetic_assign_binop(expression, new_d_Shr); + case EXPR_BINARY_SHIFTLEFT_ASSIGN: + case EXPR_BINARY_SHIFTRIGHT_ASSIGN: + return create_arithmetic_assign_shift(expression); default: panic("TODO binexpr type"); } @@ -1231,13 +1494,16 @@ static ir_node *binary_expression_to_firm(const binary_expression_t *expression) static ir_node *array_access_addr(const array_access_expression_t *expression) { - dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); + dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); + ir_node *base_addr = expression_to_firm(expression->array_ref); + ir_node *offset = expression_to_firm(expression->index); + offset = create_conv(dbgi, offset, mode_Iu); - ir_node *base_addr = expression_to_firm(expression->array_ref); - ir_node *offset = expression_to_firm(expression->index); - offset = create_conv(dbgi, offset, mode_Iu); + type_t *ref_type = skip_typeref(expression->array_ref->base.datatype); + assert(is_type_pointer(ref_type)); + pointer_type_t *pointer_type = (pointer_type_t*) ref_type; - unsigned elem_size = get_type_size(expression->expression.datatype); + unsigned elem_size = get_type_size(pointer_type->points_to); ir_node *elem_size_const = new_Const_long(mode_Iu, elem_size); ir_node *real_offset = new_d_Mul(dbgi, offset, elem_size_const, mode_Iu); @@ -1249,17 +1515,21 @@ static ir_node *array_access_addr(const array_access_expression_t *expression) static ir_node *array_access_to_firm( const array_access_expression_t *expression) { - dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); - ir_node *addr = array_access_addr(expression); - type_t *type = expression->expression.datatype; - return deref_address(type, addr, dbgi); + dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); + ir_node *addr = array_access_addr(expression); + type_t *type = revert_automatic_type_conversion( + (const expression_t*) expression); + type = skip_typeref(type); + ir_type *irtype = get_ir_type(type); + + return deref_address(irtype, addr, dbgi); } static ir_node *sizeof_to_firm(const sizeof_expression_t *expression) { type_t *type = expression->type; if(type == NULL) { - type = expression->size_expression->datatype; + type = expression->size_expression->base.datatype; assert(type != NULL); } @@ -1270,10 +1540,53 @@ static ir_node *sizeof_to_firm(const sizeof_expression_t *expression) return size_node; } +static tarval *try_fold_constant(const expression_t *expression) +{ + ir_graph *old_current_ir_graph = current_ir_graph; + if(current_ir_graph == NULL) { + current_ir_graph = get_const_code_irg(); + } + + ir_node *cnst = expression_to_firm(expression); + current_ir_graph = old_current_ir_graph; + + if(!is_Const(cnst)) { + return NULL; + } + + tarval *tv = get_Const_tarval(cnst); + if(!tarval_is_long(tv)) { + return NULL; + } + + return tv; +} + +static long fold_constant(const expression_t *expression) +{ + tarval *tv = try_fold_constant(expression); + if(tv == NULL) { + panic("couldn't fold constantl"); + } + + return get_tarval_long(tv); +} + static ir_node *conditional_to_firm(const conditional_expression_t *expression) { dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); + /* first try to fold a constant condition */ + tarval *tv = try_fold_constant(expression->condition); + if(tv != NULL) { + long val = get_tarval_long(tv); + if(val) { + return expression_to_firm(expression->true_expression); + } else { + return expression_to_firm(expression->false_expression); + } + } + ir_node *cur_block = get_cur_block(); /* create the true block */ @@ -1300,6 +1613,10 @@ static ir_node *conditional_to_firm(const conditional_expression_t *expression) add_immBlock_pred(common_block, false_jmp); mature_immBlock(common_block); + /* TODO improve static semantics, so either both or no values are NULL */ + if (true_val == NULL || false_val == NULL) + return NULL; + ir_node *in[2] = { true_val, false_val }; ir_mode *mode = get_irn_mode(true_val); assert(get_irn_mode(false_val) == mode); @@ -1327,15 +1644,180 @@ static ir_node *select_addr(const select_expression_t *expression) static ir_node *select_to_firm(const select_expression_t *expression) { - dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); - ir_node *addr = select_addr(expression); - type_t *type = skip_typeref(expression->expression.datatype); - return deref_address(type, addr, dbgi); + dbg_info *dbgi = get_dbg_info(&expression->expression.source_position); + ir_node *addr = select_addr(expression); + type_t *type = revert_automatic_type_conversion( + (const expression_t*) expression); + type = skip_typeref(type); + ir_type *irtype = get_ir_type(type); + + return deref_address(irtype, addr, dbgi); +} + +/* Values returned by __builtin_classify_type. */ +typedef enum gcc_type_class +{ + no_type_class = -1, + void_type_class, + integer_type_class, + char_type_class, + enumeral_type_class, + boolean_type_class, + pointer_type_class, + reference_type_class, + offset_type_class, + real_type_class, + complex_type_class, + function_type_class, + method_type_class, + record_type_class, + union_type_class, + array_type_class, + string_type_class, + set_type_class, + file_type_class, + lang_type_class +} gcc_type_class; + +static ir_node *classify_type_to_firm(const classify_type_expression_t *const expr) +{ + const type_t *const type = expr->type_expression->base.datatype; + + gcc_type_class tc; + switch (type->type) + { + case TYPE_ATOMIC: { + const atomic_type_t *const atomic_type = &type->atomic; + switch (atomic_type->atype) { + // should not be reached + case ATOMIC_TYPE_INVALID: + tc = no_type_class; + break; + + // gcc cannot do that + case ATOMIC_TYPE_VOID: + tc = void_type_class; + break; + + case ATOMIC_TYPE_CHAR: // gcc handles this as integer + case ATOMIC_TYPE_SCHAR: // gcc handles this as integer + case ATOMIC_TYPE_UCHAR: // gcc handles this as integer + case ATOMIC_TYPE_SHORT: + case ATOMIC_TYPE_USHORT: + case ATOMIC_TYPE_INT: + case ATOMIC_TYPE_UINT: + case ATOMIC_TYPE_LONG: + case ATOMIC_TYPE_ULONG: + case ATOMIC_TYPE_LONGLONG: + case ATOMIC_TYPE_ULONGLONG: + case ATOMIC_TYPE_BOOL: // gcc handles this as integer + tc = integer_type_class; + break; + + case ATOMIC_TYPE_FLOAT: + case ATOMIC_TYPE_DOUBLE: + case ATOMIC_TYPE_LONG_DOUBLE: + tc = real_type_class; + break; + +#ifdef PROVIDE_COMPLEX + case ATOMIC_TYPE_FLOAT_COMPLEX: + case ATOMIC_TYPE_DOUBLE_COMPLEX: + case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX: + tc = complex_type_class; + break; + case ATOMIC_TYPE_FLOAT_IMAGINARY: + case ATOMIC_TYPE_DOUBLE_IMAGINARY: + case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY: + tc = complex_type_class; + break; +#endif + + default: + panic("Unimplemented case in classify_type_to_firm()."); + } + break; + } + + case TYPE_ARRAY: // gcc handles this as pointer + case TYPE_FUNCTION: // gcc handles this as pointer + case TYPE_POINTER: tc = pointer_type_class; break; + case TYPE_COMPOUND_STRUCT: tc = record_type_class; break; + case TYPE_COMPOUND_UNION: tc = union_type_class; break; + + // gcc handles this as integer + case TYPE_ENUM: tc = integer_type_class; break; + + default: + panic("Unimplemented case in classify_type_to_firm()."); + } + + dbg_info *const dbgi = get_dbg_info(&expr->expression.source_position); + ir_mode *const mode = mode_Is; + tarval *const tv = new_tarval_from_long(tc, mode); + return new_d_Const(dbgi, mode, tv); +} + +static ir_node *function_name_to_firm( + const string_literal_expression_t *const expr) +{ + if (current_function_name == NULL) { + const source_position_t *const src_pos = + &expr->expression.source_position; + const char *const name = current_function_decl->symbol->string; + current_function_name = string_to_firm(src_pos, "__func__", name); + } + + return current_function_name; +} + +static ir_node *statement_expression_to_firm(const statement_expression_t *expr) +{ + statement_t *statement = expr->statement; + + assert(statement->type == STATEMENT_COMPOUND); + return compound_statement_to_firm((compound_statement_t*) statement); +} + +static ir_node *va_start_expression_to_firm( + const va_start_expression_t *const expr) +{ + ir_type *const method_type = get_ir_type(current_function_decl->type); + int const n = get_method_n_params(method_type) - 1; + ir_entity *const parm_ent = get_method_value_param_ent(method_type, n); + ir_node *const arg_base = get_irg_value_param_base(current_ir_graph); + dbg_info *const dbgi = + get_dbg_info(&expr->expression.source_position); + ir_node *const no_mem = new_NoMem(); + ir_node *const arg_sel = + new_d_simpleSel(dbgi, no_mem, arg_base, parm_ent); + + size_t const parm_size = get_type_size(expr->parameter->type); + ir_node *const cnst = new_Const_long(mode_Iu, parm_size); + ir_node *const add = new_d_Add(dbgi, arg_sel, cnst, mode_P_data); + set_value_for_expression(expr->ap, add); + + return NULL; +} + +static ir_node *va_arg_expression_to_firm(const va_arg_expression_t *const expr) +{ + ir_type *const irtype = get_ir_type(expr->expression.datatype); + ir_node *const ap = expression_to_firm(expr->ap); + dbg_info *const dbgi = get_dbg_info(&expr->expression.source_position); + ir_node *const res = deref_address(irtype, ap, dbgi); + + size_t const parm_size = get_type_size(expr->expression.datatype); + ir_node *const cnst = new_Const_long(mode_Iu, parm_size); + ir_node *const add = new_d_Add(dbgi, ap, cnst, mode_P_data); + set_value_for_expression(expr->ap, add); + + return res; } static ir_node *dereference_addr(const unary_expression_t *const expression) { - assert(expression->type == UNEXPR_DEREFERENCE); + assert(expression->expression.type == EXPR_UNARY_DEREFERENCE); return expression_to_firm(expression->value); } @@ -1343,18 +1825,15 @@ static ir_node *expression_to_addr(const expression_t *expression) { switch(expression->type) { case EXPR_REFERENCE: - return reference_addr((const reference_expression_t*) expression); + return reference_addr(&expression->reference); case EXPR_ARRAY_ACCESS: - return array_access_addr((const array_access_expression_t*) expression); + return array_access_addr(&expression->array_access); case EXPR_SELECT: - return select_addr((const select_expression_t*) expression); - case EXPR_UNARY: { - const unary_expression_t *const unary_expr = - (const unary_expression_t*)expression; - if (unary_expr->type == UNEXPR_DEREFERENCE) { - return dereference_addr(unary_expr); - } - break; + return select_addr(&expression->select); + case EXPR_CALL: + return call_expression_to_firm(&expression->call); + case EXPR_UNARY_DEREFERENCE: { + return dereference_addr(&expression->unary); } default: break; @@ -1366,33 +1845,39 @@ static ir_node *_expression_to_firm(const expression_t *expression) { switch(expression->type) { case EXPR_CONST: - return const_to_firm((const const_t*) expression); + return const_to_firm(&expression->conste); case EXPR_STRING_LITERAL: - return string_literal_to_firm((const string_literal_t*) expression); + return string_literal_to_firm(&expression->string); + case EXPR_WIDE_STRING_LITERAL: + return wide_string_literal_to_firm(&expression->wide_string); case EXPR_REFERENCE: - return reference_expression_to_firm( - (const reference_expression_t*) expression); + return reference_expression_to_firm(&expression->reference); case EXPR_CALL: - return call_expression_to_firm((const call_expression_t*) expression); - case EXPR_UNARY: - return unary_expression_to_firm((const unary_expression_t*) expression); - case EXPR_BINARY: - return binary_expression_to_firm( - (const binary_expression_t*) expression); + return call_expression_to_firm(&expression->call); + EXPR_UNARY_CASES + return unary_expression_to_firm(&expression->unary); + EXPR_BINARY_CASES + return binary_expression_to_firm(&expression->binary); case EXPR_ARRAY_ACCESS: - return array_access_to_firm( - (const array_access_expression_t*) expression); + return array_access_to_firm(&expression->array_access); case EXPR_SIZEOF: - return sizeof_to_firm((const sizeof_expression_t*) expression); + return sizeof_to_firm(&expression->sizeofe); case EXPR_CONDITIONAL: - return conditional_to_firm((const conditional_expression_t*)expression); + return conditional_to_firm(&expression->conditional); case EXPR_SELECT: - return select_to_firm((const select_expression_t*) expression); + return select_to_firm(&expression->select); + case EXPR_CLASSIFY_TYPE: + return classify_type_to_firm(&expression->classify_type); case EXPR_FUNCTION: - case EXPR_OFFSETOF: case EXPR_PRETTY_FUNCTION: - case EXPR_VA_ARG: + return function_name_to_firm(&expression->string); case EXPR_STATEMENT: + return statement_expression_to_firm(&expression->statement); + case EXPR_VA_START: + return va_start_expression_to_firm(&expression->va_starte); + case EXPR_VA_ARG: + return va_arg_expression_to_firm(&expression->va_arge); + case EXPR_OFFSETOF: case EXPR_BUILTIN_SYMBOL: panic("unimplemented expression found"); @@ -1408,7 +1893,7 @@ static ir_node *expression_to_firm(const expression_t *expression) ir_node *res = _expression_to_firm(expression); if(res != NULL && get_irn_mode(res) == mode_b) { - ir_mode *mode = get_ir_mode(expression->datatype); + ir_mode *mode = get_ir_mode(expression->base.datatype); res = create_conv(NULL, res, mode); } @@ -1432,49 +1917,45 @@ static void create_condition_evaluation(const expression_t *expression, ir_node *false_block) { switch(expression->type) { - case EXPR_UNARY: { - unary_expression_t *unary_expression = (unary_expression_t*) expression; - if(unary_expression->type == UNEXPR_NOT) { - create_condition_evaluation(unary_expression->value, false_block, - true_block); - return; - } - break; + case EXPR_UNARY_NOT: { + const unary_expression_t *unary_expression = &expression->unary; + create_condition_evaluation(unary_expression->value, false_block, + true_block); + return; } - case EXPR_BINARY: { - binary_expression_t *binary_expression - = (binary_expression_t*) expression; - if(binary_expression->type == BINEXPR_LOGICAL_AND) { - ir_node *cur_block = get_cur_block(); - ir_node *extra_block = new_immBlock(); - set_cur_block(cur_block); - create_condition_evaluation(binary_expression->left, extra_block, - false_block); - mature_immBlock(extra_block); - set_cur_block(extra_block); - create_condition_evaluation(binary_expression->right, true_block, - false_block); - return; - } - if(binary_expression->type == BINEXPR_LOGICAL_OR) { - ir_node *cur_block = get_cur_block(); - ir_node *extra_block = new_immBlock(); - set_cur_block(cur_block); - create_condition_evaluation(binary_expression->left, true_block, - extra_block); - mature_immBlock(extra_block); - set_cur_block(extra_block); - create_condition_evaluation(binary_expression->right, true_block, - false_block); - return; - } - break; + case EXPR_BINARY_LOGICAL_AND: { + const binary_expression_t *binary_expression = &expression->binary; + + ir_node *cur_block = get_cur_block(); + ir_node *extra_block = new_immBlock(); + set_cur_block(cur_block); + create_condition_evaluation(binary_expression->left, extra_block, + false_block); + mature_immBlock(extra_block); + set_cur_block(extra_block); + create_condition_evaluation(binary_expression->right, true_block, + false_block); + return; + } + case EXPR_BINARY_LOGICAL_OR: { + const binary_expression_t *binary_expression = &expression->binary; + + ir_node *cur_block = get_cur_block(); + ir_node *extra_block = new_immBlock(); + set_cur_block(cur_block); + create_condition_evaluation(binary_expression->left, true_block, + extra_block); + mature_immBlock(extra_block); + set_cur_block(extra_block); + create_condition_evaluation(binary_expression->right, true_block, + false_block); + return; } default: break; } - dbg_info *dbgi = get_dbg_info(&expression->source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.source_position); ir_node *condition = expression_to_modeb(expression); ir_node *cond = new_d_Cond(dbgi, condition); ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true); @@ -1486,46 +1967,504 @@ static void create_condition_evaluation(const expression_t *expression, set_cur_block(NULL); } -static void statement_to_firm(statement_t *statement); -static void return_statement_to_firm(return_statement_t *statement) -{ - if(get_cur_block() == NULL) - return; - dbg_info *dbgi = get_dbg_info(&statement->statement.source_position); - ir_node *ret; +static void create_declaration_entity(declaration_t *declaration, + declaration_type_t declaration_type, + ir_type *parent_type) +{ + ident *id = new_id_from_str(declaration->symbol->string); + ir_type *irtype = get_ir_type(declaration->type); + ir_entity *entity = new_entity(parent_type, id, irtype); + set_entity_ld_ident(entity, id); + + declaration->declaration_type = (unsigned char) declaration_type; + declaration->v.entity = entity; + set_entity_variability(entity, variability_uninitialized); + if(parent_type == get_tls_type()) + set_entity_allocation(entity, allocation_automatic); + else if(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE) + set_entity_allocation(entity, allocation_static); + /* TODO: visibility? */ +} + +typedef struct compound_graph_path_entry_t compound_graph_path_entry_t; + +enum compound_graph_entry_type_t { + COMPOUND_GRAPH_ENTRY_ARRAY, + COMPOUND_GRAPH_ENTRY_COMPOUND +}; + +struct compound_graph_path_entry_t { + int type; + union { + ir_entity *entity; + int array_index; + } v; + compound_graph_path_entry_t *prev; +}; + +static void create_initializer_object(initializer_t *initializer, type_t *type, + ir_entity *entity, compound_graph_path_entry_t *entry, int len); + +static compound_graph_path *create_compound_path(ir_type *type, + compound_graph_path_entry_t *entry, int len) +{ + compound_graph_path *path = new_compound_graph_path(type, len); + + int i = len - 1; + for( ; entry != NULL; entry = entry->prev, --i) { + assert(i >= 0); + if(entry->type == COMPOUND_GRAPH_ENTRY_COMPOUND) { + set_compound_graph_path_node(path, i, entry->v.entity); + } else { + assert(entry->type == COMPOUND_GRAPH_ENTRY_ARRAY); + set_compound_graph_path_array_index(path, i, entry->v.array_index); + } + } + assert(i == -1); + + return path; +} + +static void create_initializer_value(initializer_value_t *initializer, + ir_entity *entity, + compound_graph_path_entry_t *entry, + int len) +{ + ir_node *node = expression_to_firm(initializer->value); + ir_type *type = get_entity_type(entity); + compound_graph_path *path = create_compound_path(type, entry, len); + add_compound_ent_value_w_path(entity, node, path); +} + +static void create_initializer_compound(initializer_list_t *initializer, + compound_type_t *type, + ir_entity *entity, + compound_graph_path_entry_t *last_entry, + int len) +{ + declaration_t *compound_declaration = type->declaration; + + declaration_t *compound_entry = compound_declaration->context.declarations; + + compound_graph_path_entry_t entry; + entry.type = COMPOUND_GRAPH_ENTRY_COMPOUND; + entry.prev = last_entry; + ++len; + + size_t i = 0; + for( ; compound_entry != NULL; compound_entry = compound_entry->next) { + if(compound_entry->symbol == NULL) + continue; + if(compound_entry->namespc != NAMESPACE_NORMAL) + continue; + + if(i >= initializer->len) + break; + + entry.v.entity = compound_entry->v.entity; + + initializer_t *sub_initializer = initializer->initializers[i]; + + assert(compound_entry != NULL); + assert(compound_entry->declaration_type + == DECLARATION_TYPE_COMPOUND_MEMBER); + + if(sub_initializer->type == INITIALIZER_VALUE) { + create_initializer_value(&sub_initializer->value, + entity, &entry, len); + } else { + type_t *entry_type = skip_typeref(compound_entry->type); + create_initializer_object(sub_initializer, entry_type, entity, + &entry, len); + } + + ++i; + } +} + +static void create_initializer_array(initializer_list_t *initializer, + array_type_t *type, ir_entity *entity, + compound_graph_path_entry_t *last_entry, + int len) +{ + type_t *element_type = type->element_type; + element_type = skip_typeref(element_type); - if(statement->return_value != NULL) { - ir_node *retval = expression_to_firm(statement->return_value); - ir_node *in[1]; + compound_graph_path_entry_t entry; + entry.type = COMPOUND_GRAPH_ENTRY_ARRAY; + entry.prev = last_entry; + ++len; - in[0] = retval; - ret = new_d_Return(dbgi, get_store(), 1, in); + size_t i; + for(i = 0; i < initializer->len; ++i) { + entry.v.array_index = i; + + initializer_t *sub_initializer = initializer->initializers[i]; + + if(sub_initializer->type == INITIALIZER_VALUE) { + create_initializer_value(&sub_initializer->value, + entity, &entry, len); + } else { + create_initializer_object(sub_initializer, element_type, entity, + &entry, len); + } + } + +#if 0 + /* TODO: initialize rest... */ + if(type->size_expression != NULL) { + size_t array_len = fold_constant(type->size_expression); + for( ; i < array_len; ++i) { + + } + } +#endif +} + +static void create_initializer_string(initializer_string_t *initializer, + array_type_t *type, ir_entity *entity, + compound_graph_path_entry_t *last_entry, + int len) +{ + type_t *element_type = type->element_type; + element_type = skip_typeref(element_type); + + compound_graph_path_entry_t entry; + entry.type = COMPOUND_GRAPH_ENTRY_ARRAY; + entry.prev = last_entry; + ++len; + + ir_type *irtype = get_entity_type(entity); + size_t arr_len = get_array_type_size(type); + const char *p = initializer->string; + size_t i = 0; + for(i = 0; i < arr_len; ++i, ++p) { + entry.v.array_index = i; + + ir_node *node = new_Const_long(mode_Bs, *p); + compound_graph_path *path = create_compound_path(irtype, &entry, len); + add_compound_ent_value_w_path(entity, node, path); + + if(*p == '\0') + break; + } +} + +static void create_initializer_wide_string( + const initializer_wide_string_t *const initializer, array_type_t *const type, + ir_entity *const entity, compound_graph_path_entry_t *const last_entry, + int len) +{ + type_t *element_type = type->element_type; + element_type = skip_typeref(element_type); + + compound_graph_path_entry_t entry; + entry.type = COMPOUND_GRAPH_ENTRY_ARRAY; + entry.prev = last_entry; + ++len; + + ir_type *const irtype = get_entity_type(entity); + const size_t arr_len = get_array_type_size(type); + const wchar_rep_t * p = initializer->string.begin; + const wchar_rep_t *const end = p + initializer->string.size; + for (size_t i = 0; i < arr_len && p != end; ++i, ++p) { + entry.v.array_index = i; + + ir_node *node = new_Const_long(mode_Is, *p); + compound_graph_path *path = create_compound_path(irtype, &entry, len); + add_compound_ent_value_w_path(entity, node, path); + } +} + +static void create_initializer_object(initializer_t *initializer, type_t *type, + ir_entity *entity, compound_graph_path_entry_t *entry, int len) +{ + if(is_type_array(type)) { + array_type_t *array_type = &type->array; + + switch (initializer->type) { + case INITIALIZER_STRING: { + initializer_string_t *const string = &initializer->string; + create_initializer_string(string, array_type, entity, entry, len); + return; + } + + case INITIALIZER_WIDE_STRING: { + initializer_wide_string_t *const string = &initializer->wide_string; + create_initializer_wide_string(string, array_type, entity, entry, len); + return; + } + + case INITIALIZER_LIST: { + initializer_list_t *const list = &initializer->list; + create_initializer_array(list, array_type, entity, entry, len); + return; + } + + case INITIALIZER_VALUE: + break; + } + panic("Unhandled initializer"); } else { - ret = new_d_Return(dbgi, get_store(), 0, NULL); + assert(initializer->type == INITIALIZER_LIST); + initializer_list_t *list = &initializer->list; + + assert(is_type_compound(type)); + compound_type_t *compound_type = &type->compound; + create_initializer_compound(list, compound_type, entity, entry, len); + } +} + +static void create_initializer_local_variable_entity(declaration_t *declaration) +{ + initializer_t *initializer = declaration->init.initializer; + dbg_info *dbgi = get_dbg_info(&declaration->source_position); + ir_entity *entity = declaration->v.entity; + ir_node *memory = get_store(); + ir_node *nomem = new_NoMem(); + ir_node *frame = get_irg_frame(current_ir_graph); + ir_node *addr = new_d_simpleSel(dbgi, nomem, frame, entity); + + if(initializer->type == INITIALIZER_VALUE) { + initializer_value_t *initializer_value = &initializer->value; + + ir_node *value = expression_to_firm(initializer_value->value); + type_t *type = skip_typeref(declaration->type); + assign_value(dbgi, addr, type, value); + return; } + + /* create a "template" entity which is copied to the entity on the stack */ + ident *id = unique_ident("initializer"); + ir_type *irtype = get_ir_type(declaration->type); + ir_type *global_type = get_glob_type(); + ir_entity *init_entity = new_entity(global_type, id, irtype); + set_entity_ld_ident(init_entity, id); + + set_entity_variability(init_entity, variability_initialized); + set_entity_visibility(init_entity, visibility_local); + set_entity_allocation(init_entity, allocation_static); + + ir_graph *old_current_ir_graph = current_ir_graph; + current_ir_graph = get_const_code_irg(); + + type_t *type = skip_typeref(declaration->type); + create_initializer_object(initializer, type, init_entity, NULL, 0); + + assert(current_ir_graph == get_const_code_irg()); + current_ir_graph = old_current_ir_graph; + + ir_node *src_addr = create_symconst(dbgi, init_entity); + ir_node *copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype); + + ir_node *copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular); + set_store(copyb_mem); +} + +static void create_initializer(declaration_t *declaration) +{ + initializer_t *initializer = declaration->init.initializer; + if(initializer == NULL) + return; + + declaration_type_t declaration_type + = (declaration_type_t) declaration->declaration_type; + if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY) { + create_initializer_local_variable_entity(declaration); + return; + } + + if(initializer->type == INITIALIZER_VALUE) { + initializer_value_t *initializer_value = &initializer->value; + + ir_node *value = expression_to_firm(initializer_value->value); + + if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) { + set_value(declaration->v.value_number, value); + } else { + assert(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE); + + ir_entity *entity = declaration->v.entity; + + set_entity_variability(entity, variability_initialized); + set_atomic_ent_value(entity, value); + } + } else { + assert(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY + || declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE); + + ir_entity *entity = declaration->v.entity; + set_entity_variability(entity, variability_initialized); + + type_t *type = skip_typeref(declaration->type); + create_initializer_object(initializer, type, entity, NULL, 0); + } +} + +static void create_local_variable(declaration_t *declaration) +{ + assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN); + + bool needs_entity = declaration->address_taken; + type_t *type = skip_typeref(declaration->type); + + if(is_type_array(type) || is_type_compound(type)) { + needs_entity = true; + } + + if(needs_entity) { + ir_type *frame_type = get_irg_frame_type(current_ir_graph); + create_declaration_entity(declaration, + DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY, + frame_type); + } else { + declaration->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE; + declaration->v.value_number = next_value_number_function; + ++next_value_number_function; + } + + create_initializer(declaration); +} + +static void create_local_static_variable(declaration_t *declaration) +{ + assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN); + + type_t *type = skip_typeref(declaration->type); + ir_type *global_type = get_glob_type(); + ident *id = unique_ident(declaration->symbol->string); + ir_type *irtype = get_ir_type(type); + ir_entity *entity = new_entity(global_type, id, irtype); + set_entity_ld_ident(entity, id); + + declaration->declaration_type = DECLARATION_TYPE_GLOBAL_VARIABLE; + declaration->v.entity = entity; + set_entity_variability(entity, variability_uninitialized); + set_entity_visibility(entity, visibility_local); + set_entity_allocation(entity, allocation_static); + + ir_graph *old_current_ir_graph = current_ir_graph; + current_ir_graph = get_const_code_irg(); + + create_initializer(declaration); + + assert(current_ir_graph == get_const_code_irg()); + current_ir_graph = old_current_ir_graph; +} + + + +static void return_statement_to_firm(return_statement_t *statement) +{ + if(get_cur_block() == NULL) + return; + + ir_type *func_irtype = get_ir_type(current_function_decl->type); + + dbg_info *dbgi = get_dbg_info(&statement->statement.source_position); + + ir_node *in[1]; + int in_len; + if(get_method_n_ress(func_irtype) > 0) { + ir_type *res_type = get_method_res_type(func_irtype, 0); + + if(statement->return_value != NULL) { + ir_node *node = expression_to_firm(statement->return_value); + node = do_strict_conv(dbgi, node); + in[0] = node; + } else { + ir_mode *mode; + if(is_compound_type(res_type)) { + mode = mode_P_data; + } else { + mode = get_type_mode(res_type); + } + in[0] = new_Unknown(mode); + } + in_len = 1; + } else { + /* build return_value for its side effects */ + if(statement->return_value != NULL) { + expression_to_firm(statement->return_value); + } + in_len = 0; + } + + ir_node *store = get_store(); + ir_node *ret = new_d_Return(dbgi, store, in_len, in); + ir_node *end_block = get_irg_end_block(current_ir_graph); add_immBlock_pred(end_block, ret); set_cur_block(NULL); } -static void compound_statement_to_firm(compound_statement_t *compound) +static ir_node *expression_statement_to_firm(expression_statement_t *statement) +{ + if(get_cur_block() == NULL) + return NULL; + + return expression_to_firm(statement->expression); +} + +static ir_node *compound_statement_to_firm(compound_statement_t *compound) { + ir_node *result = NULL; statement_t *statement = compound->statements; - for( ; statement != NULL; statement = statement->next) { + for( ; statement != NULL; statement = statement->base.next) { //context2firm(&statement->context); + + if(statement->base.next == NULL + && statement->type == STATEMENT_EXPRESSION) { + result = expression_statement_to_firm( + (expression_statement_t*) statement); + break; + } statement_to_firm(statement); } + + return result; } -static void expression_statement_to_firm(expression_statement_t *statement) +static void create_local_declaration(declaration_t *declaration) { - if(get_cur_block() == NULL) + type_t *type = skip_typeref(declaration->type); + + switch ((storage_class_tag_t) declaration->storage_class) { + case STORAGE_CLASS_STATIC: + create_local_static_variable(declaration); return; + case STORAGE_CLASS_ENUM_ENTRY: + panic("enum entry declaration in local block found"); + case STORAGE_CLASS_EXTERN: + panic("extern declaration in local block found"); + case STORAGE_CLASS_NONE: + case STORAGE_CLASS_AUTO: + case STORAGE_CLASS_REGISTER: + if(is_type_function(type)) { + panic("nested functions not supported yet"); + } else { + create_local_variable(declaration); + } + return; + case STORAGE_CLASS_TYPEDEF: + case STORAGE_CLASS_THREAD: + case STORAGE_CLASS_THREAD_EXTERN: + case STORAGE_CLASS_THREAD_STATIC: + return; + } + panic("invalid storage class found"); +} - expression_to_firm(statement->expression); +static void declaration_statement_to_firm(declaration_statement_t *statement) +{ + declaration_t *declaration = statement->declarations_begin; + declaration_t *end = statement->declarations_end->next; + for( ; declaration != end; declaration = declaration->next) { + create_local_variable(declaration); + } } static void if_statement_to_firm(if_statement_t *statement) @@ -1610,7 +2549,7 @@ static void while_statement_to_firm(while_statement_t *statement) break_label = old_break_label; if(get_cur_block() != NULL) { - ir_node *jmp = new_Jmp(); + jmp = new_Jmp(); add_immBlock_pred(header_block, jmp); } } else { @@ -1690,9 +2629,17 @@ static void for_statement_to_firm(for_statement_t *statement) if(statement->initialisation != NULL) { expression_to_firm(statement->initialisation); } + + /* create declarations */ + declaration_t *declaration = statement->context.declarations; + for( ; declaration != NULL; declaration = declaration->next) { + create_local_declaration(declaration); + } + jmp = new_Jmp(); } + /* create the step block */ ir_node *const step_block = new_immBlock(); if (statement->step != NULL) { @@ -1727,7 +2674,7 @@ static void for_statement_to_firm(for_statement_t *statement) break_label = old_break_label; if (get_cur_block() != NULL) { - ir_node *const jmp = new_Jmp(); + jmp = new_Jmp(); add_immBlock_pred(step_block, jmp); } } else { @@ -1741,7 +2688,7 @@ static void for_statement_to_firm(for_statement_t *statement) false_block); } else { keep_alive(header_block); - ir_node *jmp = new_Jmp(); + jmp = new_Jmp(); add_immBlock_pred(body_block, jmp); } @@ -1754,110 +2701,13 @@ static void for_statement_to_firm(for_statement_t *statement) set_cur_block(false_block); } -static void create_declaration_entity(declaration_t *declaration, - declaration_type_t declaration_type, - ir_type *parent_type) -{ - ident *id = new_id_from_str(declaration->symbol->string); - ir_type *irtype = get_ir_type(declaration->type); - ir_entity *entity = new_entity(parent_type, id, irtype); - set_entity_ld_ident(entity, id); - - declaration->declaration_type = declaration_type; - declaration->v.entity = entity; - set_entity_variability(entity, variability_uninitialized); - /* TODO: visibility? */ -} - -static void create_initializer(declaration_t *declaration) -{ - initializer_t *initializer = declaration->init.initializer; - if(initializer == NULL) - return; - - if(initializer->type == INITIALIZER_VALUE) { - assert(initializer->designator == NULL); - assert(initializer->next == NULL); - ir_node *init_node = expression_to_firm(initializer->v.value); - - if(declaration->declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) { - set_value(declaration->v.value_number, init_node); - } else { - ir_entity *entity = declaration->v.entity; - - set_entity_variability(entity, variability_initialized); - set_atomic_ent_value(entity, init_node); - } - } else { - assert(initializer->type == INITIALIZER_LIST); - panic("list initializer not supported yet"); - } -} - -static void create_local_variable(declaration_t *declaration) -{ - assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN); - - bool needs_entity = declaration->address_taken; - type_t *type = skip_typeref(declaration->type); - - if(type->type == TYPE_ARRAY - || type->type == TYPE_COMPOUND_STRUCT - || type->type == TYPE_COMPOUND_UNION) { - needs_entity = true; - } - - if(needs_entity) { - ir_type *frame_type = get_irg_frame_type(current_ir_graph); - create_declaration_entity(declaration, - DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY, - frame_type); - } else { - declaration->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE; - declaration->v.value_number = next_value_number_function; - ++next_value_number_function; - } - - create_initializer(declaration); -} - -static void declaration_statement_to_firm(declaration_statement_t *statement) -{ - declaration_t *declaration = statement->declarations_begin; - declaration_t *end = statement->declarations_end->next; - for( ; declaration != end; declaration = declaration->next) { - type_t *type = declaration->type; - - switch(declaration->storage_class) { - case STORAGE_CLASS_TYPEDEF: - continue; - case STORAGE_CLASS_STATIC: - panic("static local vars not implemented yet"); - case STORAGE_CLASS_ENUM_ENTRY: - panic("enum entry declaration in local block found"); - case STORAGE_CLASS_EXTERN: - panic("extern declaration in local block found"); - case STORAGE_CLASS_NONE: - case STORAGE_CLASS_AUTO: - case STORAGE_CLASS_REGISTER: - if(type->type == TYPE_FUNCTION) { - panic("nested functions not supported yet"); - } else { - create_local_variable(declaration); - } - continue; - } - panic("invalid storage class found"); - } -} - static void create_jump_statement(const statement_t *statement, ir_node *target_block) { if(get_cur_block() == NULL) return; - dbg_info *dbgi = get_dbg_info(&statement->source_position); + dbg_info *dbgi = get_dbg_info(&statement->base.source_position); ir_node *jump = new_d_Jmp(dbgi); add_immBlock_pred(target_block, jump); @@ -1904,26 +2754,6 @@ static void switch_statement_to_firm(const switch_statement_t *statement) set_cur_block(break_block); } -static long fold_constant(const expression_t *expression) -{ - ir_graph *old_current_ir_graph = current_ir_graph; - current_ir_graph = get_const_code_irg(); - - ir_node *cnst = expression_to_firm(expression); - if(!is_Const(cnst)) { - panic("couldn't fold constantl"); - } - tarval *tv = get_Const_tarval(cnst); - if(!tarval_is_long(tv)) { - panic("folded constant not an integer"); - } - - long res = get_tarval_long(tv); - - current_ir_graph = old_current_ir_graph; - return res; -} - static void case_label_to_firm(const case_label_statement_t *statement) { dbg_info *dbgi = get_dbg_info(&statement->statement.source_position); @@ -1953,6 +2783,8 @@ static void case_label_to_firm(const case_label_statement_t *statement) } add_immBlock_pred(block, proj); mature_immBlock(block); + + statement_to_firm(statement->label_statement); } static ir_node *get_label_block(declaration_t *label) @@ -2003,29 +2835,126 @@ static void goto_to_firm(const goto_statement_t *statement) set_cur_block(NULL); } +typedef enum modifier_t { + ASM_MODIFIER_WRITE_ONLY = 1 << 0, + ASM_MODIFIER_READ_WRITE = 1 << 1, + ASM_MODIFIER_COMMUTATIVE = 1 << 2, + ASM_MODIFIER_EARLYCLOBBER = 1 << 3, +} modifier_t; + +#if 0 +static void asm_statement_to_firm(const asm_statement_t *statement) +{ + bool needs_memory = false; + + size_t n_clobbers = 0; + asm_clobber_t *clobber = statement->clobbers; + for( ; clobber != NULL; clobber = clobber->next) { + if(strcmp(clobber->clobber, "memory") == 0) { + needs_memory = true; + continue; + } + + ident *id = new_id_from_str(clobber->clobber); + obstack_ptr_grow(&asm_obst, id); + ++n_clobbers; + } + assert(obstack_object_size(&asm_obst) == n_clobbers * sizeof(ident*)); + ident **clobbers = NULL; + if(n_clobbers > 0) { + clobbers = obstack_finish(&asm_obst); + } + + /* find and count input and output constraints */ + asm_constraint_t *constraint = statement->inputs; + for( ; constraint != NULL; constraint = constraint->next) { + int modifiers = 0; + bool supports_memop = false; + for(const char *c = constraint->constraints; *c != 0; ++c) { + /* TODO: improve error messages */ + switch(*c) { + case '?': + case '!': + panic("multiple alternative assembler constraints not " + "supported"); + case 'm': + case 'o': + case 'V': + case '<': + case '>': + case 'X': + supports_memop = true; + obstack_1grow(&asm_obst, *c); + break; + case '=': + if(modifiers & ASM_MODIFIER_READ_WRITE) + panic("inconsistent register constraints"); + modifiers |= ASM_MODIFIER_WRITE_ONLY; + break; + case '+': + if(modifiers & ASM_MODIFIER_WRITE_ONLY) + panic("inconsistent register constraints"); + modifiers |= ASM_MODIFIER_READ_WRITE; + break; + case '&': + modifiers |= ASM_MODIFIER_EARLYCLOBBER; + panic("early clobber assembler constraint not supported yet"); + break; + case '%': + modifiers |= ASM_MODIFIER_COMMUTATIVE; + panic("commutative assembler constraint not supported yet"); + break; + case '#': + /* skip register preferences stuff... */ + while(*c != 0 && *c != ',') + ++c; + break; + case '*': + /* skip register preferences stuff... */ + ++c; + break; + default: + obstack_1grow(&asm_obst, *c); + break; + } + } + obstack_1grow(&asm_obst, '\0'); + const char *constraint_string = obstack_finish(&asm_obst); + + needs_memory |= supports_memop; + if(supports_memop) { + + } + } + +} +#endif + static void statement_to_firm(statement_t *statement) { switch(statement->type) { + case STATEMENT_INVALID: + panic("invalid statement found"); case STATEMENT_COMPOUND: - compound_statement_to_firm((compound_statement_t*) statement); + compound_statement_to_firm(&statement->compound); return; case STATEMENT_RETURN: - return_statement_to_firm((return_statement_t*) statement); + return_statement_to_firm(&statement->returns); return; case STATEMENT_EXPRESSION: - expression_statement_to_firm((expression_statement_t*) statement); + expression_statement_to_firm(&statement->expression); return; case STATEMENT_IF: - if_statement_to_firm((if_statement_t*) statement); + if_statement_to_firm(&statement->ifs); return; case STATEMENT_WHILE: - while_statement_to_firm((while_statement_t*) statement); + while_statement_to_firm(&statement->whiles); return; case STATEMENT_DO_WHILE: - do_while_statement_to_firm((do_while_statement_t*) statement); + do_while_statement_to_firm(&statement->do_while); return; case STATEMENT_DECLARATION: - declaration_statement_to_firm((declaration_statement_t*) statement); + declaration_statement_to_firm(&statement->declaration); return; case STATEMENT_BREAK: create_jump_statement(statement, break_label); @@ -2034,59 +2963,175 @@ static void statement_to_firm(statement_t *statement) create_jump_statement(statement, continue_label); return; case STATEMENT_SWITCH: - switch_statement_to_firm((switch_statement_t*) statement); + switch_statement_to_firm(&statement->switchs); return; case STATEMENT_CASE_LABEL: - case_label_to_firm((case_label_statement_t*) statement); + case_label_to_firm(&statement->case_label); return; case STATEMENT_FOR: - for_statement_to_firm((for_statement_t*) statement); + for_statement_to_firm(&statement->fors); return; case STATEMENT_LABEL: - label_to_firm((label_statement_t*) statement); + label_to_firm(&statement->label); return; case STATEMENT_GOTO: - goto_to_firm((goto_statement_t*) statement); + goto_to_firm(&statement->gotos); return; - default: + case STATEMENT_ASM: + //asm_statement_to_firm(&statement->asms); + //return; break; } panic("Statement not implemented\n"); } +static int count_local_declarations(const declaration_t * decl, + const declaration_t *const end) +{ + int count = 0; + for (; decl != end; decl = decl->next) { + const type_t *type = skip_typeref(decl->type); + switch (type->type) { + case TYPE_ATOMIC: + case TYPE_ENUM: + case TYPE_POINTER: + if (!decl->address_taken) + ++count; + break; + + default: break; + } + } + return count; +} + +static int count_decls_in_stmts(const statement_t *stmt) +{ + int count = 0; + for (; stmt != NULL; stmt = stmt->base.next) { + switch (stmt->type) { + case STATEMENT_DECLARATION: { + const declaration_statement_t *const decl_stmt = + (const declaration_statement_t*)stmt; + count += count_local_declarations(decl_stmt->declarations_begin, + decl_stmt->declarations_end->next); + break; + } + + case STATEMENT_COMPOUND: { + const compound_statement_t *const comp = + (const compound_statement_t*)stmt; + count += count_decls_in_stmts(comp->statements); + break; + } + + case STATEMENT_IF: { + const if_statement_t *const if_stmt = (const if_statement_t*)stmt; + count += count_decls_in_stmts(if_stmt->true_statement); + count += count_decls_in_stmts(if_stmt->false_statement); + break; + } + + case STATEMENT_SWITCH: { + const switch_statement_t *const switch_stmt = + (const switch_statement_t*)stmt; + count += count_decls_in_stmts(switch_stmt->body); + break; + } + + case STATEMENT_LABEL: { + const label_statement_t *const label_stmt = + (const label_statement_t*)stmt; + count += count_decls_in_stmts(label_stmt->label_statement); + break; + } + + case STATEMENT_WHILE: { + const while_statement_t *const while_stmt = + (const while_statement_t*)stmt; + count += count_decls_in_stmts(while_stmt->body); + break; + } + + case STATEMENT_DO_WHILE: { + const do_while_statement_t *const do_while_stmt = + (const do_while_statement_t*)stmt; + count += count_decls_in_stmts(do_while_stmt->body); + break; + } + + case STATEMENT_FOR: { + const for_statement_t *const for_stmt = + (const for_statement_t*)stmt; + /* TODO initialisation */ + count += count_decls_in_stmts(for_stmt->body); + break; + } + + case STATEMENT_ASM: + case STATEMENT_BREAK: + case STATEMENT_CASE_LABEL: + case STATEMENT_CONTINUE: + case STATEMENT_EXPRESSION: + case STATEMENT_GOTO: + case STATEMENT_INVALID: + case STATEMENT_RETURN: + break; + } + } + return count; +} + static int get_function_n_local_vars(declaration_t *declaration) { - (void) declaration; - /* TODO */ - return 30; + int count = 0; + + /* count parameters */ + count += count_local_declarations(declaration->context.declarations, NULL); + + /* count local variables declared in body */ + count += count_decls_in_stmts(declaration->init.statement); + + /* TODO FIXME: Matze: I'm lazy don't want to scan all expressions + * for expression statements... */ + count += 10; + + return count; } static void initialize_function_parameters(declaration_t *declaration) { - ir_graph *irg = current_ir_graph; - ir_node *args = get_irg_args(irg); - ir_node *start_block = get_irg_start_block(irg); + ir_graph *irg = current_ir_graph; + ir_node *args = get_irg_args(irg); + ir_node *start_block = get_irg_start_block(irg); + ir_type *function_irtype = get_ir_type(declaration->type); int n = 0; declaration_t *parameter = declaration->context.declarations; - for( ; parameter != NULL; parameter = parameter->next) { + for( ; parameter != NULL; parameter = parameter->next, ++n) { assert(parameter->declaration_type == DECLARATION_TYPE_UNKNOWN); - type_t *type = parameter->type; + type_t *type = skip_typeref(parameter->type); bool needs_entity = parameter->address_taken; - if(type->type == TYPE_COMPOUND_STRUCT - || type->type == TYPE_COMPOUND_UNION) { + assert(!is_type_array(type)); + if(is_type_compound(type)) { needs_entity = true; } if(needs_entity) { - panic("entities for function parameters not implemented yet"); + ir_entity *entity = get_method_value_param_ent(function_irtype, n); + ident *id = new_id_from_str(parameter->symbol->string); + set_entity_ident(entity, id); + + parameter->declaration_type + = DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY; + parameter->v.entity = entity; + continue; } ir_mode *mode = get_ir_mode(parameter->type); long pn = n; ir_node *proj = new_r_Proj(irg, start_block, args, mode, pn); - ++n; parameter->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE; parameter->v.value_number = next_value_number_function; @@ -2098,16 +3143,19 @@ static void initialize_function_parameters(declaration_t *declaration) static void create_function(declaration_t *declaration) { - ir_entity *entity = get_function_entity(declaration); + ir_entity *function_entity = get_function_entity(declaration); if(declaration->init.statement == NULL) return; + current_function_decl = declaration; + current_function_name = NULL; + assert(imature_blocks == NULL); imature_blocks = NEW_ARR_F(ir_node*, 0); int n_local_vars = get_function_n_local_vars(declaration); - ir_graph *irg = new_ir_graph(entity, n_local_vars); + ir_graph *irg = new_ir_graph(function_entity, n_local_vars); ir_node *first_block = get_cur_block(); next_value_number_function = 0; @@ -2119,15 +3167,24 @@ static void create_function(declaration_t *declaration) /* do we have a return statement yet? */ if(get_cur_block() != NULL) { - assert(declaration->type->type == TYPE_FUNCTION); - const function_type_t* const func_type - = (const function_type_t*) declaration->type; + type_t *type = skip_typeref(declaration->type); + assert(is_type_function(type)); + const function_type_t *func_type = &type->function; + const type_t *return_type + = skip_typeref(func_type->return_type); + ir_node *ret; - if (func_type->result_type == type_void) { + if (is_type_atomic(return_type, ATOMIC_TYPE_VOID)) { ret = new_Return(get_store(), 0, NULL); } else { - ir_mode *const mode = get_ir_mode(func_type->result_type); - ir_node * in[1]; + ir_mode *mode; + if(is_type_scalar(return_type)) { + mode = get_ir_mode(func_type->return_type); + } else { + mode = mode_P_data; + } + + ir_node *in[1]; // §5.1.2.2.3 main implicitly returns 0 if (strcmp(declaration->symbol->string, "main") == 0) { in[0] = new_Const(mode, get_mode_null(mode)); @@ -2165,7 +3222,9 @@ static void create_function(declaration_t *declaration) int misalign = 0; if(align > 0) { misalign = offset % align; - offset += misalign; + if(misalign > 0) { + offset += align - misalign; + } } set_entity_offset(entity, offset); @@ -2180,24 +3239,62 @@ static void create_function(declaration_t *declaration) static void create_global_variable(declaration_t *declaration) { - ir_type *global_type = get_glob_type(); - create_declaration_entity(declaration, DECLARATION_TYPE_GLOBAL_VARIABLE, - global_type); + ir_visibility vis; + ir_type *var_type; + switch ((storage_class_tag_t)declaration->storage_class) { + case STORAGE_CLASS_STATIC: + vis = visibility_local; + goto global_var; - ir_entity *entity = declaration->v.entity; - if(declaration->storage_class == STORAGE_CLASS_STATIC) { - set_entity_visibility(entity, visibility_local); - } else if(declaration->storage_class == STORAGE_CLASS_EXTERN) { - set_entity_visibility(entity, visibility_external_allocated); - } else { - set_entity_visibility(entity, visibility_external_visible); + case STORAGE_CLASS_EXTERN: + vis = visibility_external_allocated; + goto global_var; + + case STORAGE_CLASS_NONE: + vis = visibility_external_visible; + goto global_var; + + case STORAGE_CLASS_THREAD: + vis = visibility_external_visible; + goto tls_var; + + case STORAGE_CLASS_THREAD_EXTERN: + vis = visibility_external_allocated; + goto tls_var; + + case STORAGE_CLASS_THREAD_STATIC: + vis = visibility_local; + goto tls_var; + +tls_var: + var_type = get_tls_type(); + goto create_var; + +global_var: + var_type = get_glob_type(); + goto create_var; + +create_var: + create_declaration_entity(declaration, DECLARATION_TYPE_GLOBAL_VARIABLE, + var_type); + set_entity_visibility(declaration->v.entity, vis); + + current_ir_graph = get_const_code_irg(); + create_initializer(declaration); + return; + + case STORAGE_CLASS_TYPEDEF: + case STORAGE_CLASS_AUTO: + case STORAGE_CLASS_REGISTER: + case STORAGE_CLASS_ENUM_ENTRY: + break; } - current_ir_graph = get_const_code_irg(); - create_initializer(declaration); + panic("Invalid storage class for global variable"); } static void context_to_firm(context_t *context) { + /* first pass: create declarations */ declaration_t *declaration = context->declarations; for( ; declaration != NULL; declaration = declaration->next) { if(declaration->namespc != NAMESPACE_NORMAL) @@ -2208,19 +3305,46 @@ static void context_to_firm(context_t *context) if(declaration->symbol == NULL) continue; - type_t *type = declaration->type; - if(type->type == TYPE_FUNCTION) { - create_function(declaration); + type_t *type = skip_typeref(declaration->type); + if(is_type_function(type)) { + get_function_entity(declaration); } else { create_global_variable(declaration); } } + + /* second pass: create code */ + declaration = context->declarations; + for( ; declaration != NULL; declaration = declaration->next) { + if(declaration->namespc != NAMESPACE_NORMAL) + continue; + if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY + || declaration->storage_class == STORAGE_CLASS_TYPEDEF) + continue; + if(declaration->symbol == NULL) + continue; + + type_t *type = declaration->type; + if(type->type != TYPE_FUNCTION) + continue; + + create_function(declaration); + } } void translation_unit_to_firm(translation_unit_t *unit) { - /* remove me later TODO FIXME */ - (void) get_type_size; + type_const_char = make_atomic_type(ATOMIC_TYPE_CHAR, TYPE_QUALIFIER_CONST); + type_void = make_atomic_type(ATOMIC_TYPE_VOID, TYPE_QUALIFIER_NONE); + type_int = make_atomic_type(ATOMIC_TYPE_INT, TYPE_QUALIFIER_NONE); + + ir_type_int = get_ir_type(type_int); + ir_type_const_char = get_ir_type(type_const_char); + ir_type_wchar_t = get_ir_type(type_wchar_t); + ir_type_void = get_ir_type(type_int); /* we don't have a real void + type in firm */ + + type_void->base.firm_type = ir_type_void; /* just to be sure */ continue_label = NULL;