X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast2firm.c;h=7e06f49a5025330971efa13b9ecc63a36e4aa043;hb=0cd1559ba2a23f1522e3f740067e4ef5ea8c3520;hp=0b747d97aa13972678081bc85e6d4ee54fde93a3;hpb=f0015a9f0cf1e1d000121a68f3e070c34ea104f0;p=cparser diff --git a/ast2firm.c b/ast2firm.c index 0b747d9..7e06f49 100644 --- a/ast2firm.c +++ b/ast2firm.c @@ -1,7 +1,5 @@ #include -#define _GNU_SOURCE - #include #include #include @@ -19,6 +17,7 @@ #include "parser.h" #include "diagnostic.h" #include "lang_features.h" +#include "types.h" #include "driver/firm_opt.h" #include "driver/firm_cmdline.h" @@ -30,8 +29,6 @@ static ir_type *ir_type_void; static ir_type *ir_type_int; static type_t *type_const_char; -static type_t *type_void; -static type_t *type_int; static int next_value_number_function; static ir_node *continue_label; @@ -63,8 +60,9 @@ ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos) { const declaration_t *declaration = get_irg_loc_description(irg, pos); - warningf(declaration->source_position, "variable '%#T' might be used uninitialized", - declaration->type, declaration->symbol); + warningf(declaration->source_position, + "variable '%#T' might be used uninitialized", + declaration->type, declaration->symbol); return new_r_Unknown(irg, mode); } @@ -353,10 +351,6 @@ static unsigned count_parameters(const function_type_t *function_type) } - - -static long fold_constant(const expression_t *expression); - static ir_type *create_atomic_type(const atomic_type_t *type) { dbg_info *dbgi = get_dbg_info(&type->type.source_position); @@ -364,8 +358,12 @@ static ir_type *create_atomic_type(const atomic_type_t *type) ident *id = get_mode_ident(mode); ir_type *irtype = new_d_type_primitive(id, mode, dbgi); + /* TODO: this is x86 specific, we should fiddle this into + * lang_features.h somehow... */ if(type->akind == ATOMIC_TYPE_LONG_DOUBLE - || type->akind == ATOMIC_TYPE_DOUBLE) { + || type->akind == ATOMIC_TYPE_DOUBLE + || type->akind == ATOMIC_TYPE_LONGLONG + || type->akind == ATOMIC_TYPE_ULONGLONG) { set_type_alignment_bytes(irtype, 4); } @@ -426,26 +424,27 @@ static ir_type *create_array_type(array_type_t *type) type_t *element_type = type->element_type; ir_type *ir_element_type = get_ir_type(element_type); - ident *id = unique_ident("array"); - dbg_info *dbgi = get_dbg_info(&type->type.source_position); - ir_type *ir_type = new_d_type_array(id, 1, ir_element_type, dbgi); + ident *id = unique_ident("array"); + dbg_info *dbgi = get_dbg_info(&type->type.source_position); + ir_type *ir_type = new_d_type_array(id, 1, ir_element_type, dbgi); + + const int align = get_type_alignment_bytes(ir_element_type); + set_type_alignment_bytes(ir_type, align); - if(type->size != NULL) { - int n_elements = fold_constant(type->size); + if(type->size_constant) { + int n_elements = type->size; set_array_bounds_int(ir_type, 0, 0, n_elements); size_t elemsize = get_type_size_bytes(ir_element_type); - int align = get_type_alignment_bytes(ir_element_type); if(elemsize % align > 0) { elemsize += align - (elemsize % align); } set_type_size_bytes(ir_type, n_elements * elemsize); - set_type_alignment_bytes(ir_type, align); - set_type_state(ir_type, layout_fixed); } else { set_array_lower_bound_int(ir_type, 0, 0); } + set_type_state(ir_type, layout_fixed); return ir_type; } @@ -539,34 +538,65 @@ static ir_type *create_bitfield_type(bitfield_type_t *const type) #define INVALID_TYPE ((ir_type_ptr)-1) -static ir_type *create_struct_type(compound_type_t *type) +static ir_type *create_union_type(compound_type_t *type, ir_type *irtype, + size_t *outer_offset, size_t *outer_align); + +static ir_type *create_struct_type(compound_type_t *type, ir_type *irtype, + size_t *outer_offset, size_t *outer_align) { declaration_t *declaration = type->declaration; if(declaration->v.irtype != NULL) { return declaration->v.irtype; } - symbol_t *symbol = declaration->symbol; - ident *id; - if(symbol != NULL) { - id = unique_ident(symbol->string); - } else { - id = unique_ident("__anonymous_struct"); - } - dbg_info *dbgi = get_dbg_info(&type->type.source_position); - ir_type *irtype = new_d_type_struct(id, dbgi); - - type->type.firm_type = irtype; - size_t align_all = 1; size_t offset = 0; size_t bit_offset = 0; + if(irtype == NULL) { + symbol_t *symbol = declaration->symbol; + ident *id; + if(symbol != NULL) { + id = unique_ident(symbol->string); + } else { + id = unique_ident("__anonymous_struct"); + } + dbg_info *dbgi = get_dbg_info(&type->type.source_position); + + irtype = new_d_type_struct(id, dbgi); + + declaration->v.irtype = irtype; + type->type.firm_type = irtype; + } else { + offset = *outer_offset; + align_all = *outer_align; + } + declaration_t *entry = declaration->scope.declarations; for( ; entry != NULL; entry = entry->next) { if(entry->namespc != NAMESPACE_NORMAL) continue; - type_t *entry_type = skip_typeref(entry->type); + symbol_t *symbol = entry->symbol; + type_t *entry_type = skip_typeref(entry->type); + dbg_info *dbgi = get_dbg_info(&entry->source_position); + ident *ident; + if(symbol != NULL) { + ident = new_id_from_str(symbol->string); + } else { + if(entry_type->kind == TYPE_COMPOUND_STRUCT) { + create_struct_type(&entry_type->compound, irtype, &offset, + &align_all); + continue; + } else if(entry_type->kind == TYPE_COMPOUND_UNION) { + create_union_type(&entry_type->compound, irtype, &offset, + &align_all); + continue; + } else { + assert(entry_type->kind == TYPE_BITFIELD); + } + ident = unique_ident("anon"); + } + ir_type *base_irtype; if(entry_type->kind == TYPE_BITFIELD) { base_irtype = get_ir_type(entry_type->bitfield.base); @@ -577,16 +607,8 @@ static ir_type *create_struct_type(compound_type_t *type) size_t entry_alignment = get_type_alignment_bytes(base_irtype); size_t misalign = offset % entry_alignment; - dbg_info *dbgi = get_dbg_info(&entry->source_position); - ir_entity *entity = NULL; - if(entry->symbol != NULL) { - ident *ident = new_id_from_str(entry->symbol->string); - ir_type *entry_irtype = get_ir_type(entry_type); - entity = new_d_entity(irtype, ident, entry_irtype, dbgi); - } else { - /* only bitfields are allowed to be anonymous */ - assert(entry_type->kind == TYPE_BITFIELD); - } + ir_type *entry_irtype = get_ir_type(entry_type); + ir_entity *entity = new_d_entity(irtype, ident, entry_irtype, dbgi); size_t base; size_t bits_remainder; @@ -627,66 +649,104 @@ static ir_type *create_struct_type(compound_type_t *type) align_all = entry_alignment; } - if(entity != NULL) { - set_entity_offset(entity, base); - set_entity_offset_bits_remainder(entity, - (unsigned char) bits_remainder); - add_struct_member(irtype, entity); - entry->declaration_kind = DECLARATION_KIND_COMPOUND_MEMBER; - assert(entry->v.entity == NULL); - entry->v.entity = entity; - } + set_entity_offset(entity, base); + set_entity_offset_bits_remainder(entity, + (unsigned char) bits_remainder); + //add_struct_member(irtype, entity); + entry->declaration_kind = DECLARATION_KIND_COMPOUND_MEMBER; + assert(entry->v.entity == NULL); + entry->v.entity = entity; } size_t misalign = offset % align_all; if(misalign > 0 || bit_offset > 0) { offset += align_all - misalign; } - set_type_alignment_bytes(irtype, align_all); - set_type_size_bytes(irtype, offset); - set_type_state(irtype, layout_fixed); - declaration->v.irtype = irtype; + if(outer_offset != NULL) { + *outer_offset = offset; + *outer_align = align_all; + } else { + set_type_alignment_bytes(irtype, align_all); + set_type_size_bytes(irtype, offset); + set_type_state(irtype, layout_fixed); + } return irtype; } -static ir_type *create_union_type(compound_type_t *type) +static ir_type *create_union_type(compound_type_t *type, ir_type *irtype, + size_t *outer_offset, size_t *outer_align) { declaration_t *declaration = type->declaration; if(declaration->v.irtype != NULL) { return declaration->v.irtype; } - symbol_t *symbol = declaration->symbol; - ident *id; - if(symbol != NULL) { - id = unique_ident(symbol->string); + size_t align_all = 1; + size_t offset = 0; + size_t size = 0; + + if(irtype == NULL) { + symbol_t *symbol = declaration->symbol; + ident *id; + if(symbol != NULL) { + id = unique_ident(symbol->string); + } else { + id = unique_ident("__anonymous_union"); + } + dbg_info *dbgi = get_dbg_info(&type->type.source_position); + + irtype = new_d_type_union(id, dbgi); + + declaration->v.irtype = irtype; + type->type.firm_type = irtype; } else { - id = unique_ident("__anonymous_union"); + offset = *outer_offset; + align_all = *outer_align; } - dbg_info *dbgi = get_dbg_info(&type->type.source_position); - ir_type *irtype = new_d_type_union(id, dbgi); type->type.firm_type = irtype; - int align_all = 1; - int size = 0; declaration_t *entry = declaration->scope.declarations; for( ; entry != NULL; entry = entry->next) { if(entry->namespc != NAMESPACE_NORMAL) continue; - ident *ident = new_id_from_str(entry->symbol->string); - ir_type *entry_ir_type = get_ir_type(entry->type); + symbol_t *symbol = entry->symbol; + type_t *entry_type = skip_typeref(entry->type); + ir_type *entry_ir_type = get_ir_type(entry_type); - int entry_size = get_type_size_bytes(entry_ir_type); - int entry_alignment = get_type_alignment_bytes(entry_ir_type); + ident *ident; + if(symbol != NULL) { + ident = new_id_from_str(entry->symbol->string); + } else { + size_t offs = offset; + if(entry_type->kind == TYPE_COMPOUND_STRUCT) { + create_struct_type(&entry_type->compound, irtype, &offs, + &align_all); + continue; + } else if(entry_type->kind == TYPE_COMPOUND_UNION) { + create_union_type(&entry_type->compound, irtype, &offs, + &align_all); + continue; + } else { + panic("anonymous union member must be struct or union"); + } + size_t entry_size = offs - offset; + if(entry_size > size) { + size = entry_size; + } + ident = unique_ident("anon"); + } + + size_t entry_size = get_type_size_bytes(entry_ir_type); + size_t entry_alignment = get_type_alignment_bytes(entry_ir_type); dbg_info *const dbgi = get_dbg_info(&entry->source_position); ir_entity *const entity = new_d_entity(irtype, ident, entry_ir_type, dbgi); - add_union_member(irtype, entity); + //add_union_member(irtype, entity); set_entity_offset(entity, 0); entry->declaration_kind = DECLARATION_KIND_COMPOUND_MEMBER; assert(entry->v.entity == NULL); @@ -703,11 +763,26 @@ static ir_type *create_union_type(compound_type_t *type) } } - set_type_alignment_bytes(irtype, align_all); - set_type_size_bytes(irtype, size); - set_type_state(irtype, layout_fixed); + if(outer_offset != NULL) { + assert(*outer_offset == offset); - declaration->v.irtype = irtype; + size_t misalign = offset % align_all; + if (misalign != 0) + size += align_all - misalign; + *outer_offset += size; + + if(align_all > *outer_align) { + if(align_all % *outer_align != 0) { + panic("uneven alignments not supported yet"); + } + *outer_align = align_all; + } + } else { + set_type_alignment_bytes(irtype, align_all); + set_type_size_bytes(irtype, size); + set_type_state(irtype, layout_fixed); + declaration->v.irtype = irtype; + } return irtype; } @@ -719,7 +794,7 @@ 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); + ir_mode *const mode = mode_int; tarval *const one = get_mode_one(mode); tarval * tv_next = get_tarval_null(mode); @@ -773,10 +848,10 @@ static ir_type *get_ir_type(type_t *type) firm_type = create_array_type(&type->array); break; case TYPE_COMPOUND_STRUCT: - firm_type = create_struct_type(&type->compound); + firm_type = create_struct_type(&type->compound, NULL, NULL, NULL); break; case TYPE_COMPOUND_UNION: - firm_type = create_union_type(&type->compound); + firm_type = create_union_type(&type->compound, NULL, NULL, NULL); break; case TYPE_ENUM: firm_type = create_enum_type(&type->enumt); @@ -976,6 +1051,22 @@ static ir_node *const_to_firm(const const_expression_t *cnst) return new_d_Const(dbgi, mode, tv); } +static ir_node *char_const_to_firm(const const_expression_t *cnst) +{ + dbg_info *dbgi = get_dbg_info(&cnst->base.source_position); + ir_mode *mode = get_ir_mode(cnst->base.type); + + long long int v = 0; + for (size_t i = 0; i < cnst->v.chars.size; ++i) { + v = (v << 8) | ((unsigned char)cnst->v.chars.begin[i]); + } + char buf[128]; + size_t len = snprintf(buf, sizeof(buf), "%lld", v); + tarval *tv = new_tarval_from_str(buf, len, mode); + + return new_d_Const(dbgi, mode, tv); +} + static ir_node *create_symconst(dbg_info *dbgi, ir_mode *mode, ir_entity *entity) { @@ -989,10 +1080,10 @@ static ir_node *string_to_firm(const source_position_t *const src_pos, const char *const id_prefix, const string_t *const value) { - ir_type *const global_type = get_glob_type(); - dbg_info *const dbgi = get_dbg_info(src_pos); - ir_type *const type = new_d_type_array(unique_ident("strtype"), 1, - ir_type_const_char, dbgi); + ir_type *const global_type = get_glob_type(); + dbg_info *const dbgi = get_dbg_info(src_pos); + ir_type *const type = new_d_type_array(unique_ident("strtype"), 1, + ir_type_const_char, dbgi); ident *const id = unique_ident(id_prefix); ir_entity *const entity = new_d_entity(global_type, id, type, dbgi); @@ -1552,12 +1643,13 @@ static bool is_local_variable(expression_t *expression) return declaration->declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE; } -static pn_Cmp get_pnc(const expression_kind_t kind) +static pn_Cmp get_pnc(const expression_kind_t kind, type_t *const type) { switch(kind) { 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_NOTEQUAL: + return is_type_float(skip_typeref(type)) ? pn_Cmp_Ne : pn_Cmp_Lg; case EXPR_BINARY_ISLESS: case EXPR_BINARY_LESS: return pn_Cmp_Lt; case EXPR_BINARY_ISLESSEQUAL: @@ -1595,7 +1687,7 @@ static ir_node *handle_assume_compare(dbg_info *dbi, ir_node *res = NULL; pn_Cmp cmp_val; - cmp_val = get_pnc(expression->base.kind); + cmp_val = get_pnc(expression->base.kind, op1->base.type); if (is_local_variable(op1) && is_local_variable(op2)) { var = op1->reference.declaration; @@ -1783,25 +1875,10 @@ static ir_node *unary_expression_to_firm(const unary_expression_t *expression) panic("invalid UNEXPR type found"); } -static ir_node *create_lazy_op(const binary_expression_t *expression) +static ir_node *produce_condition_result(const expression_t *expression, + dbg_info *dbgi) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - type_t *type = expression->base.type; - ir_mode *mode = get_ir_mode(type); - - if(is_constant_expression(expression->left)) { - long val = fold_constant(expression->left); - expression_kind_t ekind = expression->base.kind; - if((ekind == EXPR_BINARY_LOGICAL_AND && val != 0) - || (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) { - return expression_to_firm(expression->right); - } else { - assert((ekind == EXPR_BINARY_LOGICAL_AND && val == 0) - || (ekind == EXPR_BINARY_LOGICAL_OR && val != 0)); - return new_Const(mode, get_mode_one(mode)); - } - } - + ir_mode *mode = get_ir_mode(expression->base.type); ir_node *cur_block = get_cur_block(); ir_node *one_block = new_immBlock(); @@ -1813,8 +1890,7 @@ static ir_node *create_lazy_op(const binary_expression_t *expression) ir_node *jmp_zero = new_d_Jmp(dbgi); set_cur_block(cur_block); - create_condition_evaluation((const expression_t*) expression, - one_block, zero_block); + create_condition_evaluation(expression, one_block, zero_block); mature_immBlock(one_block); mature_immBlock(zero_block); @@ -1829,6 +1905,28 @@ static ir_node *create_lazy_op(const binary_expression_t *expression) return val; } +static ir_node *create_lazy_op(const binary_expression_t *expression) +{ + dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + type_t *type = expression->base.type; + ir_mode *mode = get_ir_mode(type); + + if(is_constant_expression(expression->left)) { + long val = fold_constant(expression->left); + expression_kind_t ekind = expression->base.kind; + if((ekind == EXPR_BINARY_LOGICAL_AND && val != 0) + || (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) { + return expression_to_firm(expression->right); + } else { + assert((ekind == EXPR_BINARY_LOGICAL_AND && val == 0) + || (ekind == EXPR_BINARY_LOGICAL_OR && val != 0)); + return new_Const(mode, get_mode_one(mode)); + } + } + + return produce_condition_result((const expression_t*) expression, dbgi); +} + typedef ir_node * (*create_arithmetic_func)(dbg_info *dbgi, ir_node *left, ir_node *right, ir_mode *mode); @@ -2075,7 +2173,7 @@ static ir_node *binary_expression_to_firm(const binary_expression_t *expression) ir_node *left = expression_to_firm(expression->left); ir_node *right = expression_to_firm(expression->right); ir_node *cmp = new_d_Cmp(dbgi, left, right); - long pnc = get_pnc(kind); + long pnc = get_pnc(kind, expression->left->base.type); ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pnc); return proj; } @@ -2167,6 +2265,93 @@ static ir_node *array_access_to_firm( return deref_address(irtype, addr, dbgi); } +static long get_offsetof_offset(const offsetof_expression_t *expression) +{ + type_t *orig_type = expression->type; + long offset = 0; + + designator_t *designator = expression->designator; + for( ; designator != NULL; designator = designator->next) { + type_t *type = skip_typeref(orig_type); + /* be sure the type is constructed */ + (void) get_ir_type(type); + + if(designator->symbol != NULL) { + assert(is_type_compound(type)); + symbol_t *symbol = designator->symbol; + + declaration_t *declaration = type->compound.declaration; + declaration_t *iter = declaration->scope.declarations; + for( ; iter != NULL; iter = iter->next) { + if(iter->symbol == symbol) { + break; + } + } + assert(iter != NULL); + + assert(iter->declaration_kind == DECLARATION_KIND_COMPOUND_MEMBER); + offset += get_entity_offset(iter->v.entity); + + orig_type = iter->type; + } else { + expression_t *array_index = designator->array_index; + assert(designator->array_index != NULL); + assert(is_type_array(type)); + assert(is_type_valid(array_index->base.type)); + + long index = fold_constant(array_index); + ir_type *arr_type = get_ir_type(type); + ir_type *elem_type = get_array_element_type(arr_type); + long elem_size = get_type_size_bytes(elem_type); + + offset += index * elem_size; + + orig_type = type->array.element_type; + } + } + + return offset; +} + +static ir_node *offsetof_to_firm(const offsetof_expression_t *expression) +{ + ir_mode *mode = get_ir_mode(expression->base.type); + long offset = get_offsetof_offset(expression); + tarval *tv = new_tarval_from_long(offset, mode); + dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + + return new_d_Const(dbgi, mode, tv); +} + +static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi, + ir_entity *entity, type_t *type); + +static ir_node *compound_literal_to_firm( + const compound_literal_expression_t *expression) +{ + type_t *type = expression->type; + + /* create an entity on the stack */ + ir_type *frame_type = get_irg_frame_type(current_ir_graph); + + ident *const id = unique_ident("CompLit"); + ir_type *const irtype = get_ir_type(type); + dbg_info *const dbgi = get_dbg_info(&expression->base.source_position); + ir_entity *const entity = new_d_entity(frame_type, id, irtype, dbgi); + set_entity_ld_ident(entity, id); + + set_entity_variability(entity, variability_uninitialized); + + /* create initialisation code */ + initializer_t *initializer = expression->initializer; + create_local_initializer(initializer, dbgi, entity, type); + + /* create a sel for the compound literal address */ + ir_node *frame = get_local_frame(entity); + ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity); + return sel; +} + /** * Transform a sizeof expression into Firm code. */ @@ -2208,8 +2393,11 @@ static ir_node *alignof_to_firm(const typeprop_expression_t *expression) return new_SymConst(mode, sym, symconst_type_align); } -static long fold_constant(const expression_t *expression) +static void init_ir_types(void); +long fold_constant(const expression_t *expression) { + init_ir_types(); + assert(is_constant_expression(expression)); ir_graph *old_current_ir_graph = current_ir_graph; @@ -2525,6 +2713,8 @@ static ir_node *builtin_prefetch_to_firm( static ir_node *_expression_to_firm(const expression_t *expression) { switch(expression->kind) { + case EXPR_CHAR_CONST: + return char_const_to_firm(&expression->conste); case EXPR_CONST: return const_to_firm(&expression->conste); case EXPR_STRING_LITERAL: @@ -2560,13 +2750,16 @@ static ir_node *_expression_to_firm(const expression_t *expression) 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"); case EXPR_BUILTIN_CONSTANT_P: return builtin_constant_to_firm(&expression->builtin_constant); case EXPR_BUILTIN_PREFETCH: return builtin_prefetch_to_firm(&expression->builtin_prefetch); + case EXPR_OFFSETOF: + return offsetof_to_firm(&expression->offsetofe); + case EXPR_COMPOUND_LITERAL: + return compound_literal_to_firm(&expression->compound_literal); case EXPR_UNKNOWN: case EXPR_INVALID: @@ -2581,7 +2774,17 @@ static ir_node *expression_to_firm(const expression_t *expression) if(res != NULL && get_irn_mode(res) == mode_b) { ir_mode *mode = get_ir_mode(expression->base.type); - res = create_conv(NULL, res, mode); + if(is_Const(res)) { + if(is_Const_null(res)) { + return new_Const_long(mode, 0); + } else { + assert(is_Const_one(res)); + return new_Const_long(mode, 1); + } + } + + dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + return produce_condition_result(expression, dbgi); } return res; @@ -2689,256 +2892,514 @@ static void create_declaration_entity(declaration_t *declaration, /* 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 +typedef struct type_path_entry_t type_path_entry_t; +struct type_path_entry_t { + type_t *type; + ir_initializer_t *initializer; + size_t index; + declaration_t *compound_entry; }; -struct compound_graph_path_entry_t { - int type; - union { - ir_entity *entity; - int array_index; - } v; - compound_graph_path_entry_t *prev; +typedef struct type_path_t type_path_t; +struct type_path_t { + type_path_entry_t *path; + type_t *top_type; + bool invalid; }; -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) +static __attribute__((unused)) void debug_print_type_path(const type_path_t *path) { - compound_graph_path *path = new_compound_graph_path(type, len); + size_t len = ARR_LEN(path->path); - 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); + for(size_t i = 0; i < len; ++i) { + const type_path_entry_t *entry = & path->path[i]; + + type_t *type = skip_typeref(entry->type); + if(is_type_compound(type)) { + fprintf(stderr, ".%s", entry->compound_entry->symbol->string); + } else if(is_type_array(type)) { + fprintf(stderr, "[%u]", entry->index); } else { - assert(entry->type == COMPOUND_GRAPH_ENTRY_ARRAY); - set_compound_graph_path_array_index(path, i, entry->v.array_index); + fprintf(stderr, "-INVALID-"); } } - assert(i == -1); + fprintf(stderr, " ("); + print_type(path->top_type); + fprintf(stderr, ")"); +} - return path; +static type_path_entry_t *get_type_path_top(const type_path_t *path) +{ + size_t len = ARR_LEN(path->path); + assert(len > 0); + return & path->path[len-1]; } -static void create_initializer_value(initializer_value_t *initializer, - ir_entity *entity, - compound_graph_path_entry_t *entry, - int len) +static type_path_entry_t *append_to_type_path(type_path_t *path) { - 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); + size_t len = ARR_LEN(path->path); + ARR_RESIZE(type_path_entry_t, path->path, len+1); + + type_path_entry_t *result = & path->path[len]; + memset(result, 0, sizeof(result[0])); + return result; } -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) +static size_t get_compound_size(const compound_type_t *type) { - declaration_t *compound_declaration = type->declaration; + declaration_t *declaration = type->declaration; + declaration_t *member = declaration->scope.declarations; + size_t size = 0; + for( ; member != NULL; member = member->next) { + ++size; + } + /* TODO: cache results? */ - declaration_t *compound_entry = compound_declaration->scope.declarations; + return size; +} - compound_graph_path_entry_t entry; - entry.type = COMPOUND_GRAPH_ENTRY_COMPOUND; - entry.prev = last_entry; - ++len; +static ir_initializer_t *get_initializer_entry(type_path_t *path) +{ + type_t *orig_top_type = path->top_type; + type_t *top_type = skip_typeref(orig_top_type); - 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; + assert(is_type_compound(top_type) || is_type_array(top_type)); - if(i >= initializer->len) - break; + if(ARR_LEN(path->path) == 0) { + return NULL; + } else { + type_path_entry_t *top = get_type_path_top(path); + ir_initializer_t *initializer = top->initializer; + return get_initializer_compound_value(initializer, top->index); + } +} + +static void descend_into_subtype(type_path_t *path) +{ + type_t *orig_top_type = path->top_type; + type_t *top_type = skip_typeref(orig_top_type); - entry.v.entity = compound_entry->v.entity; + assert(is_type_compound(top_type) || is_type_array(top_type)); - initializer_t *sub_initializer = initializer->initializers[i]; + ir_initializer_t *initializer = get_initializer_entry(path); - assert(compound_entry != NULL); - assert(compound_entry->declaration_kind - == DECLARATION_KIND_COMPOUND_MEMBER); + type_path_entry_t *top = append_to_type_path(path); + top->type = top_type; - if(sub_initializer->kind == INITIALIZER_VALUE) { - create_initializer_value(&sub_initializer->value, - entity, &entry, len); + size_t len; + + if(is_type_compound(top_type)) { + declaration_t *declaration = top_type->compound.declaration; + declaration_t *entry = declaration->scope.declarations; + + top->compound_entry = entry; + top->index = 0; + path->top_type = entry->type; + len = get_compound_size(&top_type->compound); + } else { + assert(is_type_array(top_type)); + assert(top_type->array.size > 0); + + top->index = 0; + path->top_type = top_type->array.element_type; + len = top_type->array.size; + } + if(initializer == NULL + || get_initializer_kind(initializer) == IR_INITIALIZER_NULL) { + initializer = create_initializer_compound(len); + /* we have to set the entry at the 2nd latest path entry... */ + size_t path_len = ARR_LEN(path->path); + assert(path_len >= 1); + if(path_len > 1) { + type_path_entry_t *entry = & path->path[path_len-2]; + ir_initializer_t *tinitializer = entry->initializer; + set_initializer_compound_value(tinitializer, entry->index, + initializer); + } + } + top->initializer = initializer; +} + +static void ascend_from_subtype(type_path_t *path) +{ + type_path_entry_t *top = get_type_path_top(path); + + path->top_type = top->type; + + size_t len = ARR_LEN(path->path); + ARR_RESIZE(type_path_entry_t, path->path, len-1); +} + +static void walk_designator(type_path_t *path, const designator_t *designator) +{ + /* designators start at current object type */ + ARR_RESIZE(type_path_entry_t, path->path, 1); + + for( ; designator != NULL; designator = designator->next) { + type_path_entry_t *top = get_type_path_top(path); + type_t *orig_type = top->type; + type_t *type = skip_typeref(orig_type); + + if(designator->symbol != NULL) { + assert(is_type_compound(type)); + size_t index = 0; + symbol_t *symbol = designator->symbol; + + declaration_t *declaration = type->compound.declaration; + declaration_t *iter = declaration->scope.declarations; + for( ; iter != NULL; iter = iter->next, ++index) { + if(iter->symbol == symbol) { + break; + } + } + assert(iter != NULL); + + top->type = orig_type; + top->compound_entry = iter; + top->index = index; + orig_type = iter->type; } else { - type_t *entry_type = skip_typeref(compound_entry->type); - create_initializer_object(sub_initializer, entry_type, entity, - &entry, len); + expression_t *array_index = designator->array_index; + assert(designator->array_index != NULL); + assert(is_type_array(type)); + assert(is_type_valid(array_index->base.type)); + + long index = fold_constant(array_index); + assert(index >= 0); +#ifndef NDEBUG + if(type->array.size_constant == 1) { + long array_size = type->array.size; + assert(index < array_size); + } +#endif + + top->type = orig_type; + top->index = (size_t) index; + orig_type = type->array.element_type; } + path->top_type = orig_type; - ++i; + if(designator->next != NULL) { + descend_into_subtype(path); + } } + + path->invalid = false; } -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) +static void advance_current_object(type_path_t *path) { - type_t *element_type = type->element_type; - element_type = skip_typeref(element_type); + if(path->invalid) { + /* TODO: handle this... */ + panic("invalid initializer in ast2firm (excessive elements)"); + return; + } - compound_graph_path_entry_t entry; - entry.type = COMPOUND_GRAPH_ENTRY_ARRAY; - entry.prev = last_entry; - ++len; + type_path_entry_t *top = get_type_path_top(path); - size_t i; - for(i = 0; i < initializer->len; ++i) { - entry.v.array_index = i; + type_t *type = skip_typeref(top->type); + if(is_type_union(type)) { + top->compound_entry = NULL; + } else if(is_type_struct(type)) { + declaration_t *entry = top->compound_entry; - initializer_t *sub_initializer = initializer->initializers[i]; + top->index++; + entry = entry->next; + top->compound_entry = entry; + if(entry != NULL) { + path->top_type = entry->type; + return; + } + } else { + assert(is_type_array(type)); - if(sub_initializer->kind == INITIALIZER_VALUE) { - create_initializer_value(&sub_initializer->value, - entity, &entry, len); - } else { - create_initializer_object(sub_initializer, element_type, entity, - &entry, len); + top->index++; + if(!type->array.size_constant || top->index < type->array.size) { + return; } } -#if 0 - /* TODO: initialize rest... */ - if(type->size_expression != NULL) { - size_t array_len = fold_constant(type->size_expression); - for( ; i < array_len; ++i) { + /* we're past the last member of the current sub-aggregate, try if we + * can ascend in the type hierarchy and continue with another subobject */ + size_t len = ARR_LEN(path->path); + + if(len > 1) { + ascend_from_subtype(path); + advance_current_object(path); + } else { + path->invalid = true; + } +} + + +static ir_initializer_t *create_ir_initializer( + const initializer_t *initializer, type_t *type); +static ir_initializer_t *create_ir_initializer_value( + const initializer_value_t *initializer) +{ + ir_node *value = expression_to_firm(initializer->value); + return create_initializer_const(value); +} + +static ir_initializer_t *create_ir_initializer_list( + const initializer_list_t *initializer, type_t *type) +{ + type_path_t path; + memset(&path, 0, sizeof(path)); + path.top_type = type; + path.path = NEW_ARR_F(type_path_entry_t, 0); + + descend_into_subtype(&path); + + for(size_t i = 0; i < initializer->len; ++i) { + const initializer_t *sub_initializer = initializer->initializers[i]; + + if(sub_initializer->kind == INITIALIZER_DESIGNATOR) { + walk_designator(&path, sub_initializer->designator.designator); + continue; } + + if(sub_initializer->kind == INITIALIZER_VALUE) { + /* we might have to descend into types until we're at a scalar + * type */ + while(true) { + type_t *orig_top_type = path.top_type; + type_t *top_type = skip_typeref(orig_top_type); + + if(is_type_scalar(top_type)) + break; + descend_into_subtype(&path); + } + } + + ir_initializer_t *sub_irinitializer + = create_ir_initializer(sub_initializer, path.top_type); + + size_t path_len = ARR_LEN(path.path); + assert(path_len >= 1); + type_path_entry_t *entry = & path.path[path_len-1]; + ir_initializer_t *tinitializer = entry->initializer; + set_initializer_compound_value(tinitializer, entry->index, + sub_irinitializer); + + advance_current_object(&path); } -#endif + + assert(ARR_LEN(path.path) >= 1); + ir_initializer_t *result = path.path[0].initializer; + DEL_ARR_F(path.path); + + return result; } -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) +static ir_initializer_t *create_ir_initializer_string( + const initializer_string_t *initializer, type_t *type) { - type_t *element_type = type->element_type; - element_type = skip_typeref(element_type); + size_t string_len = initializer->string.size; + assert(type->kind == TYPE_ARRAY && type->array.size_constant); + size_t len = type->array.size; + ir_initializer_t *irinitializer = create_initializer_compound(len); + + const char *string = initializer->string.begin; + ir_mode *mode = get_type_mode(ir_type_const_char); - compound_graph_path_entry_t entry; - entry.type = COMPOUND_GRAPH_ENTRY_ARRAY; - entry.prev = last_entry; - ++len; + for(size_t i = 0; i < len; ++i) { + char c = 0; + if(i < string_len) + c = string[i]; - ir_type *const irtype = get_entity_type(entity); - size_t arr_len = get_array_type_size(type); - const char *const p = initializer->string.begin; - if (initializer->string.size < arr_len) { - arr_len = initializer->string.size; + tarval *tv = new_tarval_from_long(string[i], mode); + ir_initializer_t *char_initializer = create_initializer_tarval(tv); + + set_initializer_compound_value(irinitializer, i, char_initializer); } - for (size_t i = 0; i < arr_len; ++i) { - entry.v.array_index = i; - ir_node *node = new_Const_long(mode_Bs, p[i]); - compound_graph_path *path = create_compound_path(irtype, &entry, len); - add_compound_ent_value_w_path(entity, node, path); + return irinitializer; +} + +static ir_initializer_t *create_ir_initializer_wide_string( + const initializer_wide_string_t *initializer, type_t *type) +{ + size_t string_len = initializer->string.size; + assert(type->kind == TYPE_ARRAY && type->array.size_constant); + size_t len = type->array.size; + ir_initializer_t *irinitializer = create_initializer_compound(len); + + const wchar_rep_t *string = initializer->string.begin; + ir_mode *mode = get_type_mode(ir_type_wchar_t); + + for(size_t i = 0; i < len; ++i) { + wchar_rep_t c = 0; + if(i < string_len) { + c = string[i]; + } + tarval *tv = new_tarval_from_long(string[i], mode); + ir_initializer_t *char_initializer = create_initializer_tarval(tv); + + set_initializer_compound_value(irinitializer, i, char_initializer); } + + return irinitializer; } -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) +static ir_initializer_t *create_ir_initializer( + const initializer_t *initializer, type_t *type) { - type_t *element_type = type->element_type; - element_type = skip_typeref(element_type); + switch(initializer->kind) { + case INITIALIZER_STRING: + return create_ir_initializer_string(&initializer->string, type); - compound_graph_path_entry_t entry; - entry.type = COMPOUND_GRAPH_ENTRY_ARRAY; - entry.prev = last_entry; - ++len; + case INITIALIZER_WIDE_STRING: + return create_ir_initializer_wide_string(&initializer->wide_string, + type); - 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; + case INITIALIZER_LIST: + return create_ir_initializer_list(&initializer->list, type); - ir_node *node = new_Const_long(mode_int, *p); - compound_graph_path *path = create_compound_path(irtype, &entry, len); - add_compound_ent_value_w_path(entity, node, path); + case INITIALIZER_VALUE: + return create_ir_initializer_value(&initializer->value); + + case INITIALIZER_DESIGNATOR: + panic("unexpected designator initializer found"); } + panic("unknown initializer"); } -static void create_initializer_object(initializer_t *initializer, type_t *type, - ir_entity *entity, compound_graph_path_entry_t *entry, int len) +static void create_dynamic_initializer_sub(ir_initializer_t *initializer, + ir_type *type, dbg_info *dbgi, ir_node *base_addr) { - if(is_type_array(type)) { - array_type_t *array_type = &type->array; + switch(get_initializer_kind(initializer)) { + case IR_INITIALIZER_NULL: { + ir_mode *mode = get_type_mode(type); + /* TODO: implement this for compound types... */ + assert(type != NULL); + tarval *zero = get_mode_null(mode); + ir_node *cnst = new_d_Const(dbgi, mode, zero); - switch (initializer->kind) { - case INITIALIZER_STRING: { - initializer_string_t *const string = &initializer->string; - create_initializer_string(string, array_type, entity, entry, len); - return; - } + /* TODO: bitfields */ + ir_node *mem = get_store(); + ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst); + ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M); + set_store(proj_m); + return; + } + case IR_INITIALIZER_CONST: { + ir_node *node = get_initializer_const_value(initializer); + ir_mode *mode = get_irn_mode(node); + assert(get_type_mode(type) == mode); - case INITIALIZER_WIDE_STRING: { - initializer_wide_string_t *const string = &initializer->wide_string; - create_initializer_wide_string(string, array_type, entity, entry, len); - return; - } + /* TODO: bitfields... */ + ir_node *mem = get_store(); + ir_node *store = new_d_Store(dbgi, mem, base_addr, node); + ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M); + set_store(proj_m); + return; + } + case IR_INITIALIZER_TARVAL: { + tarval *tv = get_initializer_tarval_value(initializer); + ir_mode *mode = get_tarval_mode(tv); + ir_node *cnst = new_d_Const(dbgi, mode, tv); + assert(get_type_mode(type) == mode); + + /* TODO: bitfields... */ + ir_node *mem = get_store(); + ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst); + ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M); + set_store(proj_m); + return; + } + case IR_INITIALIZER_COMPOUND: { + assert(is_compound_type(type)); + int n_members; + if(is_Array_type(type)) { + assert(has_array_upper_bound(type, 0)); + n_members = get_array_upper_bound_int(type, 0); + } else { + n_members = get_compound_n_members(type); + } + + if(get_initializer_compound_n_entries(initializer) + != (unsigned) n_members) + panic("initializer doesn't match compound type"); + + for(int i = 0; i < n_members; ++i) { + ir_node *addr; + ir_type *irtype; + if(is_Array_type(type)) { + ir_entity *entity = get_array_element_entity(type); + tarval *index_tv = new_tarval_from_long(i, mode_uint); + ir_node *cnst = new_d_Const(dbgi, mode_uint, index_tv); + ir_node *in[1] = { cnst }; + irtype = get_array_element_type(type); + addr = new_d_Sel(dbgi, new_NoMem(), base_addr, 1, in, entity); + } else { + ir_entity *member = get_compound_member(type, i); - case INITIALIZER_LIST: { - initializer_list_t *const list = &initializer->list; - create_initializer_array(list, array_type, entity, entry, len); - return; + irtype = get_entity_type(member); + addr = new_d_simpleSel(dbgi, new_NoMem(), base_addr, member); } - case INITIALIZER_VALUE: - break; - } - panic("Unhandled initializer"); - } else { - assert(initializer->kind == INITIALIZER_LIST); - initializer_list_t *list = &initializer->list; + ir_initializer_t *sub_init + = get_initializer_compound_value(initializer, i); - assert(is_type_compound(type)); - compound_type_t *compound_type = &type->compound; - create_initializer_compound(list, compound_type, entity, entry, len); + create_dynamic_initializer_sub(sub_init, irtype, dbgi, addr); + } + return; + } } + + panic("invalid IR_INITIALIZER found"); } -static void create_initializer_local_variable_entity(declaration_t *declaration) +static void create_dynamic_initializer(ir_initializer_t *initializer, + dbg_info *dbgi, ir_entity *entity) { - 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); + ir_node *frame = get_local_frame(entity); + ir_node *base_addr = new_d_simpleSel(dbgi, new_NoMem(), frame, entity); + ir_type *type = get_entity_type(entity); + + create_dynamic_initializer_sub(initializer, type, dbgi, base_addr); +} + +static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi, + ir_entity *entity, type_t *type) +{ + 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->kind == 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); + type = skip_typeref(type); assign_value(dbgi, addr, type, value); return; } + if(!is_constant_initializer(initializer)) { + ir_initializer_t *irinitializer + = create_ir_initializer(initializer, type); + + create_dynamic_initializer(irinitializer, dbgi, entity); + return; + } + + /* create the ir_initializer */ + ir_graph *const old_current_ir_graph = current_ir_graph; + current_ir_graph = get_const_code_irg(); + + ir_initializer_t *irinitializer = create_ir_initializer(initializer, type); + + assert(current_ir_graph == get_const_code_irg()); + current_ir_graph = old_current_ir_graph; + /* create a "template" entity which is copied to the entity on the stack */ ident *const id = unique_ident("initializer"); - ir_type *const irtype = get_ir_type(declaration->type); + ir_type *const irtype = get_ir_type(type); ir_type *const global_type = get_glob_type(); ir_entity *const init_entity = new_d_entity(global_type, id, irtype, dbgi); set_entity_ld_ident(init_entity, id); @@ -2947,23 +3408,25 @@ static void create_initializer_local_variable_entity(declaration_t *declaration) set_entity_visibility(init_entity, visibility_local); set_entity_allocation(init_entity, allocation_static); - ir_graph *const old_current_ir_graph = current_ir_graph; - current_ir_graph = get_const_code_irg(); - - type_t *const 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; + set_entity_initializer(init_entity, irinitializer); - ir_node *const src_addr = create_symconst(dbgi, mode_P_data, init_entity); - ir_node *const copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype); + ir_node *const src_addr = create_symconst(dbgi, mode_P_data, init_entity); + ir_node *const copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype); ir_node *const copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular); set_store(copyb_mem); } -static void create_initializer(declaration_t *declaration) +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; + type_t *type = declaration->type; + create_local_initializer(initializer, dbgi, entity, type); +} + +static void create_declaration_initializer(declaration_t *declaration) { initializer_t *initializer = declaration->init.initializer; if(initializer == NULL) @@ -2995,11 +3458,12 @@ static void create_initializer(declaration_t *declaration) assert(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE_ENTITY || declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE); - ir_entity *entity = declaration->v.entity; - set_entity_variability(entity, variability_initialized); + ir_entity *entity = declaration->v.entity; + ir_initializer_t *irinitializer + = create_ir_initializer(initializer, declaration->type); - type_t *type = skip_typeref(declaration->type); - create_initializer_object(initializer, type, entity, NULL, 0); + set_entity_variability(entity, variability_initialized); + set_entity_initializer(entity, irinitializer); } } @@ -3029,7 +3493,7 @@ static void create_local_variable(declaration_t *declaration) ++next_value_number_function; } - create_initializer(declaration); + create_declaration_initializer(declaration); } static void create_local_static_variable(declaration_t *declaration) @@ -3053,7 +3517,7 @@ static void create_local_static_variable(declaration_t *declaration) ir_graph *const old_current_ir_graph = current_ir_graph; current_ir_graph = get_const_code_irg(); - create_initializer(declaration); + create_declaration_initializer(declaration); assert(current_ir_graph == get_const_code_irg()); current_ir_graph = old_current_ir_graph; @@ -3133,6 +3597,60 @@ static ir_node *compound_statement_to_firm(compound_statement_t *compound) return result; } +static void create_global_variable(declaration_t *declaration) +{ + 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; + + 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_KIND_GLOBAL_VARIABLE, + var_type); + set_entity_visibility(declaration->v.entity, vis); + + return; + + case STORAGE_CLASS_TYPEDEF: + case STORAGE_CLASS_AUTO: + case STORAGE_CLASS_REGISTER: + case STORAGE_CLASS_ENUM_ENTRY: + break; + } + panic("Invalid storage class for global variable"); +} + static void create_local_declaration(declaration_t *declaration) { if(declaration->symbol == NULL) @@ -3144,19 +3662,24 @@ static void create_local_declaration(declaration_t *declaration) 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"); + create_global_variable(declaration); + create_declaration_initializer(declaration); + return; case STORAGE_CLASS_NONE: case STORAGE_CLASS_AUTO: case STORAGE_CLASS_REGISTER: if(is_type_function(type)) { - panic("nested functions not supported yet"); + if(declaration->init.statement != NULL) { + panic("nested functions not supported yet"); + } else { + get_function_entity(declaration); + } } else { create_local_variable(declaration); } return; + case STORAGE_CLASS_ENUM_ENTRY: case STORAGE_CLASS_TYPEDEF: case STORAGE_CLASS_THREAD: case STORAGE_CLASS_THREAD_EXTERN: @@ -3749,6 +4272,14 @@ static int count_decls_in_expression(const expression_t *expression) { } EXPR_UNARY_CASES return count_decls_in_expression(expression->unary.value); + case EXPR_CALL: { + int count = 0; + call_argument_t *argument = expression->call.arguments; + for( ; argument != NULL; argument = argument->next) { + count += count_decls_in_expression(argument->expression); + } + return count; + } default: break; @@ -4048,67 +4579,10 @@ static void create_function(declaration_t *declaration) } set_type_size_bytes(frame_type, offset); set_type_alignment_bytes(frame_type, align_all); - set_type_state(frame_type, layout_fixed); irg_vrfy(irg); } -static void create_global_variable(declaration_t *declaration) -{ - 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; - - 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_KIND_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; - } - panic("Invalid storage class for global variable"); -} - static void scope_to_firm(scope_t *scope) { /* first pass: create declarations */ @@ -4130,7 +4604,7 @@ static void scope_to_firm(scope_t *scope) } } - /* second pass: create code */ + /* second pass: create code/initializers */ declaration = scope->declarations; for( ; declaration != NULL; declaration = declaration->next) { if(declaration->namespc != NAMESPACE_NORMAL) @@ -4142,10 +4616,14 @@ static void scope_to_firm(scope_t *scope) continue; type_t *type = declaration->type; - if(type->kind != TYPE_FUNCTION) - continue; - - create_function(declaration); + if(type->kind == TYPE_FUNCTION) { + create_function(declaration); + } else { + assert(declaration->declaration_kind + == DECLARATION_KIND_GLOBAL_VARIABLE); + current_ir_graph = get_const_code_irg(); + create_declaration_initializer(declaration); + } } } @@ -4160,13 +4638,13 @@ void init_ast2firm(void) } } -void exit_ast2firm(void) +static void init_ir_types(void) { - obstack_free(&asm_obst, NULL); -} + static int ir_types_initialized = 0; + if(ir_types_initialized) + return; + ir_types_initialized = 1; -void translation_unit_to_firm(translation_unit_t *unit) -{ 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); @@ -4178,11 +4656,21 @@ void translation_unit_to_firm(translation_unit_t *unit) type in firm */ type_void->base.firm_type = ir_type_void; +} +void exit_ast2firm(void) +{ + obstack_free(&asm_obst, NULL); +} + +void translation_unit_to_firm(translation_unit_t *unit) +{ /* just to be sure */ continue_label = NULL; break_label = NULL; current_switch_cond = NULL; + init_ir_types(); + scope_to_firm(&unit->scope); }