X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast2firm.c;h=9a78945b51327ceff5c54209e3a0e3bb95562a8e;hb=157b9df22b3b2148603bdc63edb9d5439ed903c1;hp=26f613b54acabf88421ffbca4ef7c29a577b2c5f;hpb=be0cc563c3f4f99f4e6cc7d8f6041923f92cbd76;p=cparser diff --git a/ast2firm.c b/ast2firm.c index 26f613b..9a78945 100644 --- a/ast2firm.c +++ b/ast2firm.c @@ -35,6 +35,7 @@ #include "adt/array.h" #include "adt/strutil.h" #include "adt/util.h" +#include "jump_target.h" #include "symbol_t.h" #include "token_t.h" #include "type_t.h" @@ -58,13 +59,21 @@ struct trampoline_region { ir_entity *region; /**< created region for the trampoline */ }; +typedef struct complex_value { + ir_node *real; + ir_node *imag; +} complex_value; + +typedef struct complex_constant { + ir_tarval *real; + ir_tarval *imag; +} complex_constant; + fp_model_t firm_fp_model = fp_model_precise; static const backend_params *be_params; static ir_type *ir_type_char; -static ir_type *ir_type_const_char; -static ir_type *ir_type_wchar_t; /* architecture specific floating point arithmetic mode (if any) */ static ir_mode *mode_float_arithmetic; @@ -72,15 +81,36 @@ static ir_mode *mode_float_arithmetic; /* alignment of stack parameters */ static unsigned stack_param_align; -static int next_value_number_function; -static ir_node *continue_label; -static ir_node *break_label; -static ir_node *current_switch; -static bool saw_default_label; -static label_t **all_labels; -static entity_t **inner_functions; -static ir_node *ijmp_list; -static bool constant_folding; +static int next_value_number_function; +static jump_target continue_target; +static jump_target break_target; +static ir_node *current_switch; +static bool saw_default_label; +static entity_t **inner_functions; +static jump_target ijmp_target; +static ir_node **ijmp_ops; +static ir_node **ijmp_blocks; +static bool constant_folding; + +#define PUSH_BREAK(val) \ + jump_target const old_break_target = break_target; \ + (init_jump_target(&break_target, (val))) +#define POP_BREAK() \ + ((void)(break_target = old_break_target)) + +#define PUSH_CONTINUE(val) \ + jump_target const old_continue_target = continue_target; \ + (init_jump_target(&continue_target, (val))) +#define POP_CONTINUE() \ + ((void)(continue_target = old_continue_target)) + +#define PUSH_IRG(val) \ + ir_graph *const old_irg = current_ir_graph; \ + ir_graph *const new_irg = (val); \ + ((void)(current_ir_graph = new_irg)) + +#define POP_IRG() \ + (assert(current_ir_graph == new_irg), (void)(current_ir_graph = old_irg)) static const entity_t *current_function_entity; static ir_node *current_function_name; @@ -123,7 +153,7 @@ static ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos) const entity_t *entity = get_irg_loc_description(irg, pos); if (entity != NULL) { - source_position_t const *const pos = &entity->base.source_position; + position_t const *const pos = &entity->base.pos; warningf(WARN_UNINITIALIZED, pos, "'%N' might be used uninitialized", entity); } return new_r_Unknown(irg, mode); @@ -131,7 +161,7 @@ static ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos) static src_loc_t dbg_retrieve(const dbg_info *dbg) { - source_position_t const *const pos = (source_position_t const*)dbg; + position_t const *const pos = (position_t const*)dbg; if (pos) { return (src_loc_t){ pos->input_name, pos->lineno, pos->colno }; } else { @@ -139,7 +169,7 @@ static src_loc_t dbg_retrieve(const dbg_info *dbg) } } -static dbg_info *get_dbg_info(const source_position_t *pos) +static dbg_info *get_dbg_info(const position_t *pos) { return (dbg_info*) pos; } @@ -173,8 +203,9 @@ static void set_unreachable_now(void) ir_mode *atomic_modes[ATOMIC_TYPE_LAST+1]; -static ir_node *_expression_to_firm(const expression_t *expression); -static ir_node *expression_to_firm(const expression_t *expression); +static ir_node *expression_to_control_flow(expression_t const *expr, jump_target *true_target, jump_target *false_target); +static ir_node *expression_to_value(expression_t const *expr); +static complex_value expression_to_complex(const expression_t *expression); static unsigned decide_modulo_shift(unsigned type_size) { @@ -189,14 +220,11 @@ static ir_mode *init_atomic_ir_mode(atomic_type_kind_t kind) { unsigned flags = get_atomic_type_flags(kind); unsigned size = get_atomic_type_size(kind); - if ((flags & ATOMIC_TYPE_FLAG_FLOAT) - && !(flags & ATOMIC_TYPE_FLAG_COMPLEX)) { - if (size == 4) { - return get_modeF(); - } else if (size == 8) { - return get_modeD(); - } else { - panic("unexpected kind"); + if (flags & ATOMIC_TYPE_FLAG_FLOAT) { + switch (size) { + case 4: return get_modeF(); + case 8: return get_modeD(); + default: panic("unexpected kind"); } } else if (flags & ATOMIC_TYPE_FLAG_INTEGER) { char name[64]; @@ -235,7 +263,7 @@ static ir_node *get_vla_size(array_type_t *const type) { ir_node *size_node = type->size_node; if (size_node == NULL) { - size_node = expression_to_firm(type->size_expression); + size_node = expression_to_value(type->size_expression); type->size_node = size_node; } return size_node; @@ -253,35 +281,51 @@ static unsigned count_parameters(const function_type_t *function_type) return count; } -/** - * Creates a Firm type for an atomic type - */ -static ir_type *create_atomic_type(atomic_type_kind_t akind, const type_t *type) +static ir_type *create_primitive_irtype(atomic_type_kind_t akind, + type_dbg_info *dbgi) { ir_mode *mode = atomic_modes[akind]; - type_dbg_info *dbgi = get_type_dbg_info_(type); ir_type *irtype = new_d_type_primitive(mode, dbgi); - il_alignment_t alignment = get_atomic_type_alignment(akind); + unsigned alignment = get_atomic_type_alignment(akind); + unsigned size = get_atomic_type_size(akind); - set_type_size_bytes(irtype, get_atomic_type_size(akind)); + set_type_size_bytes(irtype, size); set_type_alignment_bytes(irtype, alignment); return irtype; } +/** + * Creates a Firm type for an atomic type + */ +static ir_type *create_atomic_type(atomic_type_kind_t akind, const type_t *type) +{ + type_dbg_info *dbgi = get_type_dbg_info_(type); + return create_primitive_irtype(akind, dbgi); +} + /** * Creates a Firm type for a complex type */ -static ir_type *create_complex_type(const atomic_type_t *type) +static ir_type *create_complex_type(atomic_type_kind_t akind, + const type_t *type) { - atomic_type_kind_t kind = type->akind; - ir_mode *mode = atomic_modes[kind]; - ident *id = get_mode_ident(mode); + type_dbg_info *dbgi = get_type_dbg_info_(type); + ir_type *etype = create_primitive_irtype(akind, NULL); + ir_type *irtype = new_d_type_array(1, etype, dbgi); - (void) id; + int align = get_type_alignment_bytes(etype); + set_type_alignment_bytes(irtype, align); + unsigned n_elements = 2; + set_array_bounds_int(irtype, 0, 0, n_elements); + size_t elemsize = get_type_size_bytes(etype); + if (elemsize % align > 0) { + elemsize += align - (elemsize % align); + } + set_type_size_bytes(irtype, n_elements * elemsize); + set_type_state(irtype, layout_fixed); - /* FIXME: finish the array */ - return NULL; + return irtype; } /** @@ -506,12 +550,11 @@ static ir_type *create_bitfield_type(const entity_t *entity) { assert(entity->kind == ENTITY_COMPOUND_MEMBER); type_t *base = skip_typeref(entity->declaration.type); - assert(base->kind == TYPE_ATOMIC || base->kind == TYPE_ENUM); + assert(is_type_integer(base)); ir_type *irbase = get_ir_type(base); unsigned bit_size = entity->compound_member.bit_size; - assert(!is_type_float(base)); if (is_type_signed(base)) { return get_signed_int_type_for_bit_size(irbase, bit_size, base); } else { @@ -577,14 +620,13 @@ static ir_type *create_compound_type(compound_type_t *const type, bool const inc /* anonymous bitfield member, skip */ if (entry->compound_member.bitfield) continue; - assert(entry_type->kind == TYPE_COMPOUND_STRUCT - || entry_type->kind == TYPE_COMPOUND_UNION); + assert(is_type_compound(entry_type)); ident = id_unique("anon.%u"); } else { ident = new_id_from_str(symbol->string); } - dbg_info *dbgi = get_dbg_info(&entry->base.source_position); + dbg_info *dbgi = get_dbg_info(&entry->base.pos); ir_type *entry_irtype; if (entry->compound_member.bitfield) { @@ -610,9 +652,7 @@ static ir_type *create_compound_type(compound_type_t *const type, bool const inc return irtype; } -static ir_tarval *fold_constant_to_tarval(expression_t const *); - -static void determine_enum_values(enum_type_t *const type) +void determine_enum_values(enum_type_t *const type) { ir_mode *const mode = atomic_modes[type->base.akind]; ir_tarval *const one = get_mode_one(mode); @@ -641,7 +681,6 @@ static ir_type *create_enum_type(enum_type_t *const type) static ir_type *get_ir_type_incomplete(type_t *type) { - assert(type != NULL); type = skip_typeref(type); if (type->base.firm_type != NULL) { @@ -657,8 +696,6 @@ static ir_type *get_ir_type_incomplete(type_t *type) ir_type *get_ir_type(type_t *type) { - assert(type != NULL); - type = skip_typeref(type); if (type->base.firm_type != NULL) { @@ -671,7 +708,7 @@ ir_type *get_ir_type(type_t *type) firm_type = create_atomic_type(type->atomic.akind, type); break; case TYPE_COMPLEX: - firm_type = create_complex_type(&type->atomic); + firm_type = create_complex_type(type->atomic.akind, type); break; case TYPE_IMAGINARY: firm_type = create_imaginary_type(&type->atomic); @@ -713,7 +750,7 @@ static ir_mode *get_ir_mode_storage(type_t *type) type = skip_typeref(type); /* Firm doesn't report a mode for arrays and structs/unions. */ - if (!is_type_scalar(type)) { + if (!is_type_scalar(type) || is_type_complex(type)) { return mode_P_data; } @@ -723,6 +760,15 @@ static ir_mode *get_ir_mode_storage(type_t *type) return mode; } +static ir_mode *get_complex_mode_storage(type_t *type) +{ + assert(is_type_complex(skip_typeref(type))); + ir_type *const irtype = get_ir_type(type); + ir_type *const etype = get_array_element_type(irtype); + ir_mode *const mode = get_type_mode(etype); + return mode; +} + /* * get arithmetic mode for a type. This is different from get_ir_mode_storage, * int that it returns bigger modes for floating point on some platforms @@ -738,13 +784,22 @@ static ir_mode *get_ir_mode_arithmetic(type_t *type) return mode; } +static ir_mode *get_complex_mode_arithmetic(type_t *type) +{ + ir_mode *mode = get_complex_mode_storage(type); + if (mode_is_float(mode) && mode_float_arithmetic != NULL) { + return mode_float_arithmetic; + } + + return mode; +} + /** * Return a node representing the size of a type. */ static ir_node *get_type_size_node(type_t *type) { - unsigned size; - ir_mode *mode = get_ir_mode_arithmetic(type_size_t); + ir_mode *const mode = get_ir_mode_storage(type_size_t); type = skip_typeref(type); if (is_type_array(type) && type->array.is_vla) { @@ -754,7 +809,7 @@ static ir_node *get_type_size_node(type_t *type) return real_size; } - size = get_type_size(type); + unsigned const size = get_type_size(type); return new_Const_long(mode, size); } @@ -858,9 +913,9 @@ static bool declaration_is_definition(const entity_t *entity) { switch (entity->kind) { case ENTITY_VARIABLE: - return entity->variable.initializer != NULL; + return entity->declaration.storage_class != STORAGE_CLASS_EXTERN; case ENTITY_FUNCTION: - return entity->function.statement != NULL; + return entity->function.body != NULL; case ENTITY_PARAMETER: case ENTITY_COMPOUND_MEMBER: return false; @@ -872,7 +927,7 @@ static bool declaration_is_definition(const entity_t *entity) case ENTITY_LOCAL_LABEL: break; } - panic("declaration_is_definition called on non-declaration"); + panic("entity is not a declaration"); } /** @@ -887,12 +942,19 @@ static void handle_decl_modifiers(ir_entity *irentity, entity_t *entity) decl_modifiers_t modifiers = entity->declaration.modifiers; if (is_method_entity(irentity)) { - if (modifiers & DM_PURE) { - set_entity_additional_properties(irentity, mtp_property_pure); - } - if (modifiers & DM_CONST) { + if (modifiers & DM_PURE) + add_entity_additional_properties(irentity, mtp_property_pure); + if (modifiers & DM_CONST) add_entity_additional_properties(irentity, mtp_property_const); - } + if (modifiers & DM_NOINLINE) + add_entity_additional_properties(irentity, mtp_property_noinline); + if (modifiers & DM_FORCEINLINE) + add_entity_additional_properties(irentity, mtp_property_always_inline); + if (modifiers & DM_NAKED) + add_entity_additional_properties(irentity, mtp_property_naked); + if (entity->kind == ENTITY_FUNCTION && entity->function.is_inline) + add_entity_additional_properties(irentity, + mtp_property_inline_recommended); } if ((modifiers & DM_USED) && declaration_is_definition(entity)) { add_entity_linkage(irentity, IR_LINKAGE_HIDDEN_USER); @@ -946,7 +1008,7 @@ static ir_entity *get_function_entity(entity_t *entity, ir_type *owner_type) /* already an entity defined? */ ir_entity *irentity = entitymap_get(&entitymap, symbol); - bool const has_body = entity->function.statement != NULL; + bool const has_body = entity->function.body != NULL; if (irentity != NULL) { goto entity_created; } @@ -963,7 +1025,7 @@ static ir_entity *get_function_entity(entity_t *entity, ir_type *owner_type) else nested_function = true; - dbg_info *const dbgi = get_dbg_info(&entity->base.source_position); + dbg_info *const dbgi = get_dbg_info(&entity->base.pos); irentity = new_d_entity(owner_type, id, ir_type_method, dbgi); ident *ld_id; @@ -1057,33 +1119,6 @@ static ir_node *create_Const_from_bool(ir_mode *const mode, bool const v) return new_Const((v ? get_mode_one : get_mode_null)(mode)); } -static ir_node *create_conv_from_b(dbg_info *dbgi, ir_node *value, - ir_mode *dest_mode) -{ - if (is_Const(value)) { - return create_Const_from_bool(dest_mode, !is_Const_null(value)); - } - - ir_node *cond = new_d_Cond(dbgi, value); - ir_node *proj_true = new_Proj(cond, mode_X, pn_Cond_true); - ir_node *proj_false = new_Proj(cond, mode_X, pn_Cond_false); - ir_node *tblock = new_Block(1, &proj_true); - ir_node *fblock = new_Block(1, &proj_false); - set_cur_block(tblock); - ir_node *const1 = new_Const(get_mode_one(dest_mode)); - ir_node *tjump = new_Jmp(); - set_cur_block(fblock); - ir_node *const0 = new_Const(get_mode_null(dest_mode)); - ir_node *fjump = new_Jmp(); - - ir_node *in[2] = { tjump, fjump }; - ir_node *mergeblock = new_Block(2, in); - set_cur_block(mergeblock); - ir_node *phi_in[2] = { const1, const0 }; - ir_node *phi = new_Phi(2, phi_in, dest_mode); - return phi; -} - static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode) { ir_mode *value_mode = get_irn_mode(value); @@ -1091,56 +1126,13 @@ static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode) if (value_mode == dest_mode) return value; - if (dest_mode == mode_b) { - ir_node *zero = new_Const(get_mode_null(value_mode)); - ir_node *cmp = new_d_Cmp(dbgi, value, zero, ir_relation_unordered_less_greater); - return cmp; - } else if (value_mode == mode_b) { - return create_conv_from_b(dbgi, value, dest_mode); - } - return new_d_Conv(dbgi, value, dest_mode); } -/** - * Creates a SymConst node representing a wide string literal. - * - * @param literal the wide string literal - */ -static ir_node *wide_string_literal_to_firm( - const string_literal_expression_t *literal) +static ir_node *conv_to_storage_type(dbg_info *const dbgi, ir_node *const val, type_t *const type) { - ir_type *const global_type = get_glob_type(); - ir_type *const elem_type = ir_type_wchar_t; - dbg_info *const dbgi = get_dbg_info(&literal->base.source_position); - ir_type *const type = new_type_array(1, elem_type); - - ident *const id = id_unique("str.%u"); - ir_entity *const entity = new_d_entity(global_type, id, type, dbgi); - set_entity_ld_ident(entity, id); - set_entity_visibility(entity, ir_visibility_private); - add_entity_linkage(entity, IR_LINKAGE_CONSTANT); - - ir_mode *const mode = get_type_mode(elem_type); - const size_t slen = wstrlen(&literal->value); - - set_array_lower_bound_int(type, 0, 0); - set_array_upper_bound_int(type, 0, slen); - set_type_size_bytes(type, slen * get_mode_size_bytes(mode)); - set_type_state(type, layout_fixed); - - ir_initializer_t *initializer = create_initializer_compound(slen); - const char *p = literal->value.begin; - for (size_t i = 0; i < slen; ++i) { - assert(p < literal->value.begin + literal->value.size); - utf32 v = read_utf8_char(&p); - ir_tarval *tv = new_tarval_from_long(v, mode); - ir_initializer_t *val = create_initializer_tarval(tv); - set_initializer_compound_value(initializer, i, val); - } - set_entity_initializer(entity, initializer); - - return create_symconst(dbgi, entity); + ir_mode *const mode = get_ir_mode_storage(type); + return create_conv(dbgi, val, mode); } /** @@ -1150,37 +1142,61 @@ static ir_node *wide_string_literal_to_firm( * @param id_prefix a prefix for the name of the generated string constant * @param value the value of the string constant */ -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_type_array(1, ir_type_const_char); - - ident *const id = id_unique(id_prefix); - ir_entity *const entity = new_d_entity(global_type, id, type, dbgi); - set_entity_ld_ident(entity, id); - set_entity_visibility(entity, ir_visibility_private); - add_entity_linkage(entity, IR_LINKAGE_CONSTANT); - - ir_type *const elem_type = ir_type_const_char; - ir_mode *const mode = get_type_mode(elem_type); +static ir_node *string_to_firm(position_t const *const src_pos, char const *const id_prefix, string_t const *const value) +{ + size_t const slen = get_string_len(value) + 1; + ir_initializer_t *const initializer = create_initializer_compound(slen); + ir_type * elem_type; + switch (value->encoding) { + case STRING_ENCODING_CHAR: + case STRING_ENCODING_UTF8: { + elem_type = ir_type_char; + + ir_mode *const mode = get_type_mode(elem_type); + char const *p = value->begin; + for (size_t i = 0; i < slen; ++i) { + ir_tarval *tv = new_tarval_from_long(*p++, mode); + ir_initializer_t *val = create_initializer_tarval(tv); + set_initializer_compound_value(initializer, i, val); + } + goto finish; + } - const char* const string = value->begin; - const size_t slen = value->size; + { + type_t *type; + case STRING_ENCODING_CHAR16: type = type_char16_t; goto init_wide; + case STRING_ENCODING_CHAR32: type = type_char32_t; goto init_wide; + case STRING_ENCODING_WIDE: type = type_wchar_t; goto init_wide; +init_wide:; + elem_type = get_ir_type(type); + + ir_mode *const mode = get_type_mode(elem_type); + char const *p = value->begin; + for (size_t i = 0; i < slen; ++i) { + assert(p <= value->begin + value->size); + utf32 v = read_utf8_char(&p); + ir_tarval *tv = new_tarval_from_long(v, mode); + ir_initializer_t *val = create_initializer_tarval(tv); + set_initializer_compound_value(initializer, i, val); + } + goto finish; + } + } + panic("invalid string encoding"); - 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); +finish:; + ir_type *const type = new_type_array(1, elem_type); + set_array_bounds_int(type, 0, 0, slen); + set_type_size_bytes( type, slen * get_type_size_bytes(elem_type)); + set_type_state( type, layout_fixed); - ir_initializer_t *initializer = create_initializer_compound(slen); - for (size_t i = 0; i < slen; ++i) { - ir_tarval *tv = new_tarval_from_long(string[i], mode); - ir_initializer_t *val = create_initializer_tarval(tv); - set_initializer_compound_value(initializer, i, val); - } + ir_type *const global_type = get_glob_type(); + ident *const id = id_unique(id_prefix); + dbg_info *const dbgi = get_dbg_info(src_pos); + ir_entity *const entity = new_d_entity(global_type, id, type, dbgi); + set_entity_ld_ident( entity, id); + set_entity_visibility( entity, ir_visibility_private); + add_entity_linkage( entity, IR_LINKAGE_CONSTANT); set_entity_initializer(entity, initializer); return create_symconst(dbgi, entity); @@ -1188,14 +1204,12 @@ static ir_node *string_to_firm(const source_position_t *const src_pos, static bool try_create_integer(literal_expression_t *literal, type_t *type) { - const char *string = literal->value.begin; - size_t size = literal->value.size; - - assert(type->kind == TYPE_ATOMIC); + assert(type->kind == TYPE_ATOMIC || type->kind == TYPE_COMPLEX); atomic_type_kind_t akind = type->atomic.akind; - ir_mode *const mode = atomic_modes[akind]; - ir_tarval *const tv = new_tarval_from_str(string, size, mode); + ir_mode *const mode = atomic_modes[akind]; + char const *const str = literal->value.begin; + ir_tarval *const tv = new_tarval_from_str(str, literal->suffix - str, mode); if (tv == tarval_bad) return false; @@ -1204,36 +1218,29 @@ static bool try_create_integer(literal_expression_t *literal, type_t *type) return true; } -static void create_integer_tarval(literal_expression_t *literal) +void determine_literal_type(literal_expression_t *const literal) { + assert(literal->base.kind == EXPR_LITERAL_INTEGER); + /* -1: signed only, 0: any, 1: unsigned only */ - int sign = literal->base.kind == EXPR_LITERAL_INTEGER ? -1 : 0; - unsigned ls = 0; - const string_t *suffix = &literal->suffix; - /* parse suffix */ - if (suffix->size > 0) { - for (const char *c = suffix->begin; *c != '\0'; ++c) { - if (*c == 'u' || *c == 'U') sign = 1; - if (*c == 'l' || *c == 'L') { ++ls; } - } - } + int const sign = + !is_type_signed(literal->base.type) ? 1 : + literal->value.begin[0] == '0' ? 0 : + -1; /* Decimal literals only try signed types. */ tarval_int_overflow_mode_t old_mode = tarval_get_integer_overflow_mode(); + tarval_set_integer_overflow_mode(TV_OVERFLOW_BAD); + + if (try_create_integer(literal, literal->base.type)) + goto finished; /* now try if the constant is small enough for some types */ - tarval_set_integer_overflow_mode(TV_OVERFLOW_BAD); - if (ls < 1) { - if (sign <= 0 && try_create_integer(literal, type_int)) - goto finished; - if (sign >= 0 && try_create_integer(literal, type_unsigned_int)) - goto finished; - } - if (ls < 2) { - if (sign <= 0 && try_create_integer(literal, type_long)) - goto finished; - if (sign >= 0 && try_create_integer(literal, type_unsigned_long)) - goto finished; - } + if (sign >= 0 && try_create_integer(literal, type_unsigned_int)) + goto finished; + if (sign <= 0 && try_create_integer(literal, type_long)) + goto finished; + if (sign >= 0 && try_create_integer(literal, type_unsigned_long)) + goto finished; /* last try? then we should not report tarval_bad */ if (sign < 0) tarval_set_integer_overflow_mode(TV_OVERFLOW_WRAP); @@ -1251,23 +1258,55 @@ finished: tarval_set_integer_overflow_mode(old_mode); } -void determine_literal_type(literal_expression_t *literal) +/** + * Creates a Const node representing a constant. + */ +static ir_node *literal_to_firm_(const literal_expression_t *literal, + ir_mode *mode) { + const char *string = literal->value.begin; + size_t size = literal->value.size; + ir_tarval *tv; + switch (literal->base.kind) { case EXPR_LITERAL_INTEGER: - case EXPR_LITERAL_INTEGER_OCTAL: - case EXPR_LITERAL_INTEGER_HEXADECIMAL: - create_integer_tarval(literal); - return; - default: + assert(literal->target_value != NULL); + tv = literal->target_value; + break; + + case EXPR_LITERAL_FLOATINGPOINT: + tv = new_tarval_from_str(string, size, mode); + break; + + case EXPR_LITERAL_BOOLEAN: + if (string[0] == 't') { + tv = get_mode_one(mode); + } else { + assert(string[0] == 'f'); + case EXPR_LITERAL_MS_NOOP: + tv = get_mode_null(mode); + } break; + + default: + panic("invalid literal kind"); } + + dbg_info *const dbgi = get_dbg_info(&literal->base.pos); + return new_d_Const(dbgi, tv); +} + +static ir_node *literal_to_firm(const literal_expression_t *literal) +{ + type_t *type = skip_typeref(literal->base.type); + ir_mode *mode_storage = get_ir_mode_storage(type); + return literal_to_firm_(literal, mode_storage); } /** - * Creates a Const node representing a constant. + * Creates a Const node representing a character constant. */ -static ir_node *literal_to_firm(const literal_expression_t *literal) +static ir_node *char_literal_to_firm(string_literal_expression_t const *literal) { type_t *type = skip_typeref(literal->base.type); ir_mode *mode = get_ir_mode_storage(type); @@ -1275,8 +1314,8 @@ static ir_node *literal_to_firm(const literal_expression_t *literal) size_t size = literal->value.size; ir_tarval *tv; - switch (literal->base.kind) { - case EXPR_LITERAL_WIDE_CHARACTER: { + switch (literal->value.encoding) { + case STRING_ENCODING_WIDE: { utf32 v = read_utf8_char(&string); char buf[128]; size_t len = snprintf(buf, sizeof(buf), UTF32_PRINTF_FORMAT, v); @@ -1285,7 +1324,7 @@ static ir_node *literal_to_firm(const literal_expression_t *literal) break; } - case EXPR_LITERAL_CHARACTER: { + case STRING_ENCODING_CHAR: { long long int v; bool char_is_signed = get_atomic_type_flags(ATOMIC_TYPE_CHAR) & ATOMIC_TYPE_FLAG_SIGNED; @@ -1304,36 +1343,12 @@ static ir_node *literal_to_firm(const literal_expression_t *literal) break; } - case EXPR_LITERAL_INTEGER: - case EXPR_LITERAL_INTEGER_OCTAL: - case EXPR_LITERAL_INTEGER_HEXADECIMAL: - assert(literal->target_value != NULL); - tv = literal->target_value; - break; - - case EXPR_LITERAL_FLOATINGPOINT: - case EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL: - tv = new_tarval_from_str(string, size, mode); - break; - - case EXPR_LITERAL_BOOLEAN: - if (string[0] == 't') { - tv = get_mode_one(mode); - } else { - assert(string[0] == 'f'); - case EXPR_LITERAL_MS_NOOP: - tv = get_mode_null(mode); - } - break; - default: - panic("Invalid literal kind found"); + panic("invalid literal kind"); } - dbg_info *dbgi = get_dbg_info(&literal->base.source_position); - ir_node *res = new_d_Const(dbgi, tv); - ir_mode *mode_arith = get_ir_mode_arithmetic(type); - return create_conv(dbgi, res, mode_arith); + dbg_info *const dbgi = get_dbg_info(&literal->base.pos); + return new_d_Const(dbgi, tv); } /* @@ -1448,35 +1463,7 @@ static ir_node *deref_address(dbg_info *const dbgi, type_t *const type, ir_node *const load_res = new_d_Proj(dbgi, load, mode, pn_Load_res); set_store(load_mem); - - ir_mode *const mode_arithmetic = get_ir_mode_arithmetic(skipped); - return create_conv(dbgi, load_res, mode_arithmetic); -} - -/** - * Creates a strict Conv (to the node's mode) if necessary. - * - * @param dbgi debug info - * @param node the node to strict conv - */ -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 (is_Conv(node)) { - /* 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); + return load_res; } /** @@ -1496,16 +1483,13 @@ static ir_node *get_local_frame(ir_entity *const ent) } /** - * Keep all memory edges of the given block. + * Keep the current block and memory. + * This is necessary for all loops, because they could become infinite. */ -static void keep_all_memory(ir_node *block) +static void keep_loop(void) { - ir_node *old = get_cur_block(); - - set_cur_block(block); + keep_alive(get_cur_block()); keep_alive(get_store()); - /* TODO: keep all memory edges from restricted pointers */ - set_cur_block(old); } static ir_node *enum_constant_to_firm(reference_expression_t const *const ref) @@ -1520,15 +1504,11 @@ static ir_node *enum_constant_to_firm(reference_expression_t const *const ref) return new_Const(entity->enum_value.tv); } -static ir_node *reference_expression_to_firm(const reference_expression_t *ref) +static ir_node *reference_addr(const reference_expression_t *ref) { - dbg_info *dbgi = get_dbg_info(&ref->base.source_position); + dbg_info *dbgi = get_dbg_info(&ref->base.pos); entity_t *entity = ref->entity; assert(is_declaration(entity)); - type_t *type = skip_typeref(entity->declaration.type); - - /* make sure the type is constructed */ - (void) get_ir_type(type); if (entity->kind == ENTITY_FUNCTION && entity->function.btk != BUILTIN_NONE) { @@ -1536,81 +1516,16 @@ static ir_node *reference_expression_to_firm(const reference_expression_t *ref) /* for gcc compatibility we have to produce (dummy) addresses for some * builtins which don't have entities */ if (irentity == NULL) { - source_position_t const *const pos = &ref->base.source_position; - symbol_t const *const sym = ref->entity->base.symbol; - warningf(WARN_OTHER, pos, "taking address of builtin '%Y'", sym); + position_t const *const pos = &ref->base.pos; + warningf(WARN_OTHER, pos, "taking address of builtin '%N'", ref->entity); /* simply create a NULL pointer */ - ir_mode *mode = get_ir_mode_arithmetic(type_void_ptr); - ir_node *res = new_Const(get_mode_null(mode)); - - return res; + ir_mode *const mode = get_ir_mode_storage(type_void_ptr); + return new_Const(get_mode_null(mode)); } } switch ((declaration_kind_t) entity->declaration.kind) { - case DECLARATION_KIND_UNKNOWN: - break; - - case DECLARATION_KIND_LOCAL_VARIABLE: { - ir_mode *const mode = get_ir_mode_storage(type); - ir_node *const value = get_value(entity->variable.v.value_number, mode); - return create_conv(NULL, value, get_ir_mode_arithmetic(type)); - } - case DECLARATION_KIND_PARAMETER: { - ir_mode *const mode = get_ir_mode_storage(type); - ir_node *const value = get_value(entity->parameter.v.value_number,mode); - return create_conv(NULL, value, get_ir_mode_arithmetic(type)); - } - case DECLARATION_KIND_FUNCTION: { - return create_symconst(dbgi, entity->function.irentity); - } - case DECLARATION_KIND_INNER_FUNCTION: { - ir_mode *const mode = get_ir_mode_storage(type); - if (!entity->function.goto_to_outer && !entity->function.need_closure) { - /* inner function not using the closure */ - return create_symconst(dbgi, entity->function.irentity); - } else { - /* need trampoline here */ - return create_trampoline(dbgi, mode, entity->function.irentity); - } - } - case DECLARATION_KIND_GLOBAL_VARIABLE: { - const variable_t *variable = &entity->variable; - ir_node *const addr = create_symconst(dbgi, variable->v.entity); - return deref_address(dbgi, variable->base.type, addr); - } - - case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: { - ir_entity *irentity = entity->variable.v.entity; - ir_node *frame = get_local_frame(irentity); - ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, irentity); - return deref_address(dbgi, entity->declaration.type, sel); - } - case DECLARATION_KIND_PARAMETER_ENTITY: { - ir_entity *irentity = entity->parameter.v.entity; - ir_node *frame = get_local_frame(irentity); - ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, irentity); - return deref_address(dbgi, entity->declaration.type, sel); - } - - case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY: - return entity->variable.v.vla_base; - - case DECLARATION_KIND_COMPOUND_MEMBER: - panic("not implemented reference type"); - } - - panic("reference to declaration with unknown type found"); -} - -static ir_node *reference_addr(const reference_expression_t *ref) -{ - dbg_info *dbgi = get_dbg_info(&ref->base.source_position); - entity_t *entity = ref->entity; - assert(is_declaration(entity)); - - switch((declaration_kind_t) entity->declaration.kind) { case DECLARATION_KIND_UNKNOWN: break; case DECLARATION_KIND_PARAMETER: @@ -1622,18 +1537,12 @@ static ir_node *reference_addr(const reference_expression_t *ref) ir_node *const addr = create_symconst(dbgi, entity->variable.v.entity); return addr; } - case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: { - ir_entity *irentity = entity->variable.v.entity; - ir_node *frame = get_local_frame(irentity); - ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, irentity); - return sel; - } + case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: case DECLARATION_KIND_PARAMETER_ENTITY: { - ir_entity *irentity = entity->parameter.v.entity; + ir_entity *irentity = entity->variable.v.entity; ir_node *frame = get_local_frame(irentity); ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, irentity); - return sel; } @@ -1660,7 +1569,28 @@ static ir_node *reference_addr(const reference_expression_t *ref) panic("not implemented reference type"); } - panic("reference to declaration with unknown type found"); + panic("reference to declaration with unknown type"); +} + +static ir_node *reference_expression_to_firm(const reference_expression_t *ref) +{ + dbg_info *const dbgi = get_dbg_info(&ref->base.pos); + entity_t *const entity = ref->entity; + assert(is_declaration(entity)); + + switch ((declaration_kind_t)entity->declaration.kind) { + case DECLARATION_KIND_LOCAL_VARIABLE: + case DECLARATION_KIND_PARAMETER: { + type_t *const type = skip_typeref(entity->declaration.type); + ir_mode *const mode = get_ir_mode_storage(type); + return get_value(entity->variable.v.value_number, mode); + } + + default: { + ir_node *const addr = reference_addr(ref); + return deref_address(dbgi, entity->declaration.type, addr); + } + } } /** @@ -1668,7 +1598,7 @@ static ir_node *reference_addr(const reference_expression_t *ref) */ static ir_node *process_builtin_call(const call_expression_t *call) { - dbg_info *dbgi = get_dbg_info(&call->base.source_position); + dbg_info *dbgi = get_dbg_info(&call->base.pos); assert(call->function->kind == EXPR_REFERENCE); reference_expression_t *builtin = &call->function->reference; @@ -1683,7 +1613,7 @@ static ir_node *process_builtin_call(const call_expression_t *call) break; case BUILTIN_ALLOCA: { expression_t *argument = call->arguments->expression; - ir_node *size = expression_to_firm(argument); + ir_node *size = expression_to_value(argument); ir_node *store = get_store(); ir_node *alloca = new_d_Alloc(dbgi, store, size, get_unknown_type(), @@ -1696,7 +1626,7 @@ static ir_node *process_builtin_call(const call_expression_t *call) } case BUILTIN_INF: { type_t *type = function_type->function.return_type; - ir_mode *mode = get_ir_mode_arithmetic(type); + ir_mode *mode = get_ir_mode_storage(type); ir_tarval *tv = get_mode_infinite(mode); ir_node *res = new_d_Const(dbgi, tv); return res; @@ -1705,25 +1635,25 @@ static ir_node *process_builtin_call(const call_expression_t *call) /* Ignore string for now... */ assert(is_type_function(function_type)); type_t *type = function_type->function.return_type; - ir_mode *mode = get_ir_mode_arithmetic(type); + ir_mode *mode = get_ir_mode_storage(type); ir_tarval *tv = get_mode_NAN(mode); ir_node *res = new_d_Const(dbgi, tv); return res; } case BUILTIN_EXPECT: { expression_t *argument = call->arguments->expression; - return _expression_to_firm(argument); + return expression_to_value(argument); } case BUILTIN_VA_END: /* evaluate the argument of va_end for its side effects */ - _expression_to_firm(call->arguments->expression); + expression_to_value(call->arguments->expression); return NULL; case BUILTIN_OBJECT_SIZE: { /* determine value of "type" */ expression_t *type_expression = call->arguments->next->expression; long type_val = fold_constant_to_int(type_expression); type_t *type = function_type->function.return_type; - ir_mode *mode = get_ir_mode_arithmetic(type); + ir_mode *mode = get_ir_mode_storage(type); /* just produce a "I don't know" result */ ir_tarval *result = type_val & 2 ? get_mode_null(mode) : get_mode_minus_one(mode); @@ -1731,15 +1661,15 @@ static ir_node *process_builtin_call(const call_expression_t *call) return new_d_Const(dbgi, result); } case BUILTIN_ROTL: { - ir_node *val = expression_to_firm(call->arguments->expression); - ir_node *shf = expression_to_firm(call->arguments->next->expression); + ir_node *val = expression_to_value(call->arguments->expression); + ir_node *shf = expression_to_value(call->arguments->next->expression); ir_mode *mode = get_irn_mode(val); ir_mode *mode_uint = atomic_modes[ATOMIC_TYPE_UINT]; return new_d_Rotl(dbgi, val, create_conv(dbgi, shf, mode_uint), mode); } case BUILTIN_ROTR: { - ir_node *val = expression_to_firm(call->arguments->expression); - ir_node *shf = expression_to_firm(call->arguments->next->expression); + ir_node *val = expression_to_value(call->arguments->expression); + ir_node *shf = expression_to_value(call->arguments->next->expression); ir_mode *mode = get_irn_mode(val); ir_mode *mode_uint = atomic_modes[ATOMIC_TYPE_UINT]; ir_node *c = new_Const_long(mode_uint, get_mode_size_bits(mode)); @@ -1752,9 +1682,12 @@ static ir_node *process_builtin_call(const call_expression_t *call) case BUILTIN_LIBC_CHECK: panic("builtin did not produce an entity"); } - panic("invalid builtin found"); + panic("invalid builtin"); } +static ir_node *complex_to_memory(dbg_info *dbgi, type_t *type, + complex_value value); + /** * Transform a call expression. * Handles some special cases, like alloca() calls, which must be resolved @@ -1764,7 +1697,7 @@ static ir_node *process_builtin_call(const call_expression_t *call) */ static ir_node *call_expression_to_firm(const call_expression_t *const call) { - dbg_info *const dbgi = get_dbg_info(&call->base.source_position); + dbg_info *const dbgi = get_dbg_info(&call->base.pos); assert(currently_reachable()); expression_t *function = call->function; @@ -1787,7 +1720,7 @@ static ir_node *call_expression_to_firm(const call_expression_t *const call) } } if (!firm_builtin) - callee = expression_to_firm(function); + callee = expression_to_value(function); type_t *type = skip_typeref(function->base.type); assert(is_type_pointer(type)); @@ -1837,17 +1770,14 @@ static ir_node *call_expression_to_firm(const call_expression_t *const call) const call_argument_t *argument = call->arguments; for (int n = 0; n < n_parameters; ++n) { expression_t *expression = argument->expression; - ir_node *arg_node = expression_to_firm(expression); - - type_t *arg_type = skip_typeref(expression->base.type); - if (!is_type_compound(arg_type)) { - ir_mode *const mode = get_ir_mode_storage(arg_type); - arg_node = create_conv(dbgi, arg_node, mode); - arg_node = do_strict_conv(dbgi, arg_node); + type_t *const arg_type = skip_typeref(expression->base.type); + if (is_type_complex(arg_type)) { + complex_value value = expression_to_complex(expression); + in[n] = complex_to_memory(dbgi, arg_type, value); + } else { + in[n] = conv_to_storage_type(dbgi, expression_to_value(expression), arg_type); } - in[n] = arg_node; - argument = argument->next; } @@ -1873,8 +1803,6 @@ static ir_node *call_expression_to_firm(const call_expression_t *const call) assert(is_type_scalar(return_type)); ir_mode *mode = get_ir_mode_storage(return_type); result = new_Proj(node, mode, pn_Builtin_max+1); - ir_mode *mode_arith = get_ir_mode_arithmetic(return_type); - result = create_conv(NULL, result, mode_arith); } } else { node = new_d_Call(dbgi, store, callee, n_parameters, in, ir_method_type); @@ -1884,11 +1812,9 @@ static ir_node *call_expression_to_firm(const call_expression_t *const call) } if (!is_type_void(return_type)) { - ir_node *const resproj = new_Proj(node, mode_T, pn_Call_T_result); - ir_mode *const mode = get_ir_mode_storage(return_type); - result = new_Proj(resproj, mode, 0); - ir_mode *const mode_arith = get_ir_mode_arithmetic(return_type); - result = create_conv(NULL, result, mode_arith); + ir_node *const resproj = new_Proj(node, mode_T, pn_Call_T_result); + ir_mode *const mode = get_ir_mode_storage(return_type); + result = new_Proj(resproj, mode, 0); } } @@ -1906,24 +1832,16 @@ static ir_node *call_expression_to_firm(const call_expression_t *const call) static ir_node *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 ir_node *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) { - if (!is_type_compound(type)) { - ir_mode *mode = get_ir_mode_storage(type); - value = create_conv(dbgi, value, mode); - value = do_strict_conv(dbgi, value); - } + value = conv_to_storage_type(dbgi, value, type); ir_node *memory = get_store(); - if (is_type_scalar(type)) { + if (is_type_scalar(type) && !is_type_complex(type)) { ir_cons_flags flags = type->base.qualifiers & TYPE_QUALIFIER_VOLATILE ? cons_volatile : cons_none; ir_node *store = new_d_Store(dbgi, memory, addr, value, flags); @@ -2018,7 +1936,7 @@ static ir_node *bitfield_store_to_firm(dbg_info *dbgi, static ir_node *bitfield_extract_to_firm(const select_expression_t *expression, ir_node *addr) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); entity_t *entity = expression->compound_entry; type_t *base_type = entity->declaration.type; ir_mode *mode = get_ir_mode_storage(base_type); @@ -2059,9 +1977,7 @@ static ir_node *bitfield_extract_to_firm(const select_expression_t *expression, shiftr = new_d_Shr(dbgi, shiftl, countr, amode); } - type_t *type = expression->base.type; - ir_mode *resmode = get_ir_mode_arithmetic(type); - return create_conv(dbgi, shiftr, resmode); + return conv_to_storage_type(dbgi, shiftr, expression->base.type); } /* make sure the selected compound type is constructed */ @@ -2077,14 +1993,9 @@ static void construct_select_compound(const select_expression_t *expression) static ir_node *set_value_for_expression_addr(const expression_t *expression, ir_node *value, ir_node *addr) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); type_t *type = skip_typeref(expression->base.type); - - if (!is_type_compound(type)) { - ir_mode *mode = get_ir_mode_storage(type); - value = create_conv(dbgi, value, mode); - value = do_strict_conv(dbgi, value); - } + value = conv_to_storage_type(dbgi, value, type); if (expression->kind == EXPR_REFERENCE) { const reference_expression_t *ref = &expression->reference; @@ -2092,12 +2003,10 @@ static ir_node *set_value_for_expression_addr(const expression_t *expression, entity_t *entity = ref->entity; assert(is_declaration(entity)); assert(entity->declaration.kind != DECLARATION_KIND_UNKNOWN); - if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE) { + if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE || + entity->declaration.kind == DECLARATION_KIND_PARAMETER) { set_value(entity->variable.v.value_number, value); return value; - } else if (entity->declaration.kind == DECLARATION_KIND_PARAMETER) { - set_value(entity->parameter.v.value_number, value); - return value; } } @@ -2126,12 +2035,6 @@ static ir_node *set_value_for_expression_addr(const expression_t *expression, return value; } -static void set_value_for_expression(const expression_t *expression, - ir_node *value) -{ - set_value_for_expression_addr(expression, value, NULL); -} - static ir_node *get_value_from_lvalue(const expression_t *expression, ir_node *addr) { @@ -2143,25 +2046,18 @@ static ir_node *get_value_from_lvalue(const expression_t *expression, || entity->kind == ENTITY_PARAMETER); assert(entity->declaration.kind != DECLARATION_KIND_UNKNOWN); int value_number; - if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE) { + if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE || + entity->declaration.kind == DECLARATION_KIND_PARAMETER) { value_number = entity->variable.v.value_number; assert(addr == NULL); type_t *type = skip_typeref(expression->base.type); ir_mode *mode = get_ir_mode_storage(type); - ir_node *res = get_value(value_number, mode); - return create_conv(NULL, res, get_ir_mode_arithmetic(type)); - } else if (entity->declaration.kind == DECLARATION_KIND_PARAMETER) { - value_number = entity->parameter.v.value_number; - assert(addr == NULL); - type_t *type = skip_typeref(expression->base.type); - ir_mode *mode = get_ir_mode_storage(type); - ir_node *res = get_value(value_number, mode); - return create_conv(NULL, res, get_ir_mode_arithmetic(type)); + return get_value(value_number, mode); } } assert(addr != NULL); - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); ir_node *value; if (expression->kind == EXPR_SELECT && @@ -2175,52 +2071,30 @@ static ir_node *get_value_from_lvalue(const expression_t *expression, return value; } - -static ir_node *create_incdec(const unary_expression_t *expression) +static ir_node *incdec_to_firm(unary_expression_t const *const expr, bool const inc, bool const pre) { - dbg_info *const dbgi = get_dbg_info(&expression->base.source_position); - const expression_t *value_expr = expression->value; - ir_node *addr = expression_to_addr(value_expr); - ir_node *value = get_value_from_lvalue(value_expr, addr); - - type_t *type = skip_typeref(expression->base.type); - ir_mode *mode = get_ir_mode_arithmetic(expression->base.type); + type_t *const type = skip_typeref(expr->base.type); + ir_mode *const mode = get_ir_mode_arithmetic(type); ir_node *offset; if (is_type_pointer(type)) { - pointer_type_t *pointer_type = &type->pointer; - offset = get_type_size_node(pointer_type->points_to); + offset = get_type_size_node(type->pointer.points_to); } else { assert(is_type_arithmetic(type)); offset = new_Const(get_mode_one(mode)); } - ir_node *result; - ir_node *store_value; - switch(expression->base.kind) { - case EXPR_UNARY_POSTFIX_INCREMENT: - result = value; - store_value = new_d_Add(dbgi, value, offset, mode); - break; - case EXPR_UNARY_POSTFIX_DECREMENT: - result = value; - store_value = new_d_Sub(dbgi, value, offset, mode); - break; - case EXPR_UNARY_PREFIX_INCREMENT: - result = new_d_Add(dbgi, value, offset, mode); - store_value = result; - break; - case EXPR_UNARY_PREFIX_DECREMENT: - result = new_d_Sub(dbgi, value, offset, mode); - store_value = result; - break; - default: - panic("no incdec expr in create_incdec"); - } + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + expression_t const *const value_expr = expr->value; + ir_node *const addr = expression_to_addr(value_expr); + ir_node *const value = get_value_from_lvalue(value_expr, addr); + ir_node *const value_arith = create_conv(dbgi, value, mode); + ir_node *const new_value = inc + ? new_d_Add(dbgi, value_arith, offset, mode) + : new_d_Sub(dbgi, value_arith, offset, mode); - set_value_for_expression_addr(value_expr, store_value, addr); - - return result; + ir_node *const store_value = set_value_for_expression_addr(value_expr, new_value, addr); + return pre ? store_value : value; } static bool is_local_variable(expression_t *expression) @@ -2237,7 +2111,7 @@ static bool is_local_variable(expression_t *expression) static ir_relation get_relation(const expression_kind_t kind) { - switch(kind) { + switch (kind) { case EXPR_BINARY_EQUAL: return ir_relation_equal; case EXPR_BINARY_ISLESSGREATER: return ir_relation_less_greater; case EXPR_BINARY_NOTEQUAL: return ir_relation_unordered_less_greater; @@ -2254,7 +2128,7 @@ static ir_relation get_relation(const expression_kind_t kind) default: break; } - panic("trying to get pn_Cmp from non-comparison binexpr type"); + panic("trying to get ir_relation from non-comparison binexpr type"); } /** @@ -2312,7 +2186,7 @@ static ir_node *handle_assume_compare(dbg_info *dbi, ir_mode *const mode = get_ir_mode_storage(type); res = get_value(var->variable.v.value_number, mode); - res = new_d_Confirm(dbi, res, expression_to_firm(con), relation); + res = new_d_Confirm(dbi, res, expression_to_value(con), relation); set_value(var->variable.v.value_number, res); } return res; @@ -2324,38 +2198,34 @@ static ir_node *handle_assume_compare(dbg_info *dbi, * @param dbi debug info * @param expr the IL assume expression */ -static ir_node *handle_assume(dbg_info *dbi, const expression_t *expression) +static ir_node *handle_assume(expression_t const *const expr) { - switch(expression->kind) { + switch (expr->kind) { case EXPR_BINARY_EQUAL: case EXPR_BINARY_NOTEQUAL: case EXPR_BINARY_LESS: case EXPR_BINARY_LESSEQUAL: case EXPR_BINARY_GREATER: - case EXPR_BINARY_GREATEREQUAL: - return handle_assume_compare(dbi, &expression->binary); + case EXPR_BINARY_GREATEREQUAL: { + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + return handle_assume_compare(dbgi, &expr->binary); + } + default: return NULL; } } -static ir_node *create_cast(dbg_info *dbgi, ir_node *value_node, - type_t *from_type, type_t *type) +static ir_node *create_cast(unary_expression_t const *const expr) { - type = skip_typeref(type); - if (is_type_void(type)) { - /* make sure firm type is constructed */ - (void) get_ir_type(type); + type_t *const type = skip_typeref(expr->base.type); + if (is_type_void(type)) return NULL; - } - if (!is_type_scalar(type)) { - /* make sure firm type is constructed */ - (void) get_ir_type(type); - return value_node; - } - from_type = skip_typeref(from_type); - ir_mode *mode = get_ir_mode_storage(type); + ir_node *value = expression_to_value(expr->value); + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + type_t *const from_type = skip_typeref(expr->value->base.type); + ir_mode *const mode = get_ir_mode_storage(type); /* check for conversion from / to __based types */ if (is_type_pointer(type) && is_type_pointer(from_type)) { const variable_t *from_var = from_type->pointer.base_variable; @@ -2364,123 +2234,59 @@ static ir_node *create_cast(dbg_info *dbgi, ir_node *value_node, if (from_var != NULL) { ir_node *const addr = create_symconst(dbgi, from_var->v.entity); ir_node *const base = deref_address(dbgi, from_var->base.type, addr); - value_node = new_d_Add(dbgi, value_node, base, mode); + value = new_d_Add(dbgi, value, base, mode); } if (to_var != NULL) { ir_node *const addr = create_symconst(dbgi, to_var->v.entity); ir_node *const base = deref_address(dbgi, to_var->base.type, addr); - value_node = new_d_Sub(dbgi, value_node, base, mode); + value = new_d_Sub(dbgi, value, base, mode); } } } - if (is_type_atomic(type, ATOMIC_TYPE_BOOL)) { - /* bool adjustments (we save a mode_Bu, but have to temporarily - * convert to mode_b so we only get a 0/1 value */ - value_node = create_conv(dbgi, value_node, mode_b); - } - - ir_mode *mode_arith = get_ir_mode_arithmetic(type); - ir_node *node = create_conv(dbgi, value_node, mode); - node = do_strict_conv(dbgi, node); - node = create_conv(dbgi, node, mode_arith); - - return node; + return create_conv(dbgi, value, mode); } -static ir_node *unary_expression_to_firm(const unary_expression_t *expression) +static ir_node *complement_to_firm(unary_expression_t const *const expr) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - type_t *type = skip_typeref(expression->base.type); - - const expression_t *value = expression->value; - - switch(expression->base.kind) { - case EXPR_UNARY_TAKE_ADDRESS: - return expression_to_addr(value); + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + type_t *const type = skip_typeref(expr->base.type); + ir_mode *const mode = get_ir_mode_arithmetic(type); + ir_node *const value = create_conv(dbgi, expression_to_value(expr->value), mode); + return new_d_Not(dbgi, value, mode); +} - case EXPR_UNARY_NEGATE: { - ir_node *value_node = expression_to_firm(value); - ir_mode *mode = get_ir_mode_arithmetic(type); - return new_d_Minus(dbgi, value_node, mode); - } - case EXPR_UNARY_PLUS: - return expression_to_firm(value); - case EXPR_UNARY_BITWISE_NEGATE: { - ir_node *value_node = expression_to_firm(value); - ir_mode *mode = get_ir_mode_arithmetic(type); - return new_d_Not(dbgi, value_node, mode); - } - case EXPR_UNARY_NOT: { - ir_node *value_node = _expression_to_firm(value); - value_node = create_conv(dbgi, value_node, mode_b); - ir_node *res = new_d_Not(dbgi, value_node, mode_b); - return res; - } - case EXPR_UNARY_DEREFERENCE: { - ir_node *value_node = expression_to_firm(value); - type_t *value_type = skip_typeref(value->base.type); - assert(is_type_pointer(value_type)); - - /* check for __based */ - const variable_t *const base_var = value_type->pointer.base_variable; - if (base_var != NULL) { - ir_node *const addr = create_symconst(dbgi, base_var->v.entity); - ir_node *const base = deref_address(dbgi, base_var->base.type, addr); - value_node = new_d_Add(dbgi, value_node, base, get_ir_mode_storage(value_type)); - } - type_t *points_to = value_type->pointer.points_to; - return deref_address(dbgi, points_to, value_node); - } - 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 EXPR_UNARY_CAST: { - ir_node *value_node = expression_to_firm(value); - type_t *from_type = value->base.type; - return create_cast(dbgi, value_node, from_type, type); - } - case EXPR_UNARY_ASSUME: - return handle_assume(dbgi, value); +static ir_node *dereference_to_firm(unary_expression_t const *const expr) +{ + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + ir_node *value = expression_to_value(expr->value); + type_t *const value_type = skip_typeref(expr->value->base.type); + assert(is_type_pointer(value_type)); - default: - break; + /* check for __based */ + variable_t const *const base_var = value_type->pointer.base_variable; + if (base_var) { + ir_node *const addr = create_symconst(dbgi, base_var->v.entity); + ir_node *const base = deref_address(dbgi, base_var->base.type, addr); + value = new_d_Add(dbgi, value, base, get_ir_mode_storage(value_type)); } - panic("invalid UNEXPR type found"); + type_t *const points_to = value_type->pointer.points_to; + return deref_address(dbgi, points_to, value); } -/** - * produces a 0/1 depending of the value of a mode_b node - */ -static ir_node *produce_condition_result(const expression_t *expression, - ir_mode *mode, dbg_info *dbgi) -{ - ir_node *const one_block = new_immBlock(); - ir_node *const zero_block = new_immBlock(); - create_condition_evaluation(expression, one_block, zero_block); - mature_immBlock(one_block); - mature_immBlock(zero_block); - - ir_node *const jmp_one = new_rd_Jmp(dbgi, one_block); - ir_node *const jmp_zero = new_rd_Jmp(dbgi, zero_block); - ir_node *const in_cf[2] = { jmp_one, jmp_zero }; - ir_node *const block = new_Block(lengthof(in_cf), in_cf); - set_cur_block(block); - - ir_node *const one = new_Const(get_mode_one(mode)); - ir_node *const zero = new_Const(get_mode_null(mode)); - ir_node *const in[2] = { one, zero }; - ir_node *const val = new_d_Phi(dbgi, lengthof(in), in, mode); - - return val; +static ir_node *negate_to_firm(unary_expression_t const *const expr) +{ + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + type_t *const type = skip_typeref(expr->base.type); + ir_mode *const mode = get_ir_mode_arithmetic(type); + ir_node *const value = create_conv(dbgi, expression_to_value(expr->value), mode); + return new_d_Minus(dbgi, value, mode); } static ir_node *adjust_for_pointer_arithmetic(dbg_info *dbgi, ir_node *value, type_t *type) { - ir_mode *const mode = get_ir_mode_arithmetic(type_ptrdiff_t); + ir_mode *const mode = get_ir_mode_storage(type_ptrdiff_t); assert(is_type_pointer(type)); pointer_type_t *const pointer_type = &type->pointer; type_t *const points_to = skip_typeref(pointer_type->points_to); @@ -2491,21 +2297,29 @@ static ir_node *adjust_for_pointer_arithmetic(dbg_info *dbgi, return mul; } -static ir_node *create_op(dbg_info *dbgi, const binary_expression_t *expression, - ir_node *left, ir_node *right) +static ir_node *create_div(dbg_info *dbgi, ir_node *left, ir_node *right, + ir_mode *mode) { - ir_mode *mode; - type_t *type_left = skip_typeref(expression->left->base.type); - type_t *type_right = skip_typeref(expression->right->base.type); - - expression_kind_t kind = expression->base.kind; + ir_node *pin = new_Pin(new_NoMem()); + ir_node *op = new_d_Div(dbgi, pin, left, right, mode, + op_pin_state_floats); + return new_d_Proj(dbgi, op, mode, pn_Div_res); +} +static ir_node *create_op(binary_expression_t const *const expr, ir_node *left, ir_node *right) +{ + ir_mode *mode; + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + type_t *const type_left = skip_typeref(expr->left->base.type); + type_t *const type_right = skip_typeref(expr->right->base.type); + expression_kind_t const kind = expr->base.kind; switch (kind) { case EXPR_BINARY_SHIFTLEFT: case EXPR_BINARY_SHIFTRIGHT: case EXPR_BINARY_SHIFTLEFT_ASSIGN: case EXPR_BINARY_SHIFTRIGHT_ASSIGN: - mode = get_ir_mode_arithmetic(expression->base.type); + mode = get_ir_mode_arithmetic(expr->base.type); + left = create_conv(dbgi, left, mode); right = create_conv(dbgi, right, atomic_modes[ATOMIC_TYPE_UINT]); break; @@ -2513,7 +2327,7 @@ static ir_node *create_op(dbg_info *dbgi, const binary_expression_t *expression, if (is_type_pointer(type_left) && is_type_pointer(type_right)) { const pointer_type_t *const ptr_type = &type_left->pointer; - mode = get_ir_mode_arithmetic(expression->base.type); + mode = get_ir_mode_storage(expr->base.type); ir_node *const elem_size = get_type_size_node(ptr_type->points_to); ir_node *const conv_size = new_d_Conv(dbgi, elem_size, mode); ir_node *const sub = new_d_Sub(dbgi, left, right, mode); @@ -2526,7 +2340,7 @@ static ir_node *create_op(dbg_info *dbgi, const binary_expression_t *expression, case EXPR_BINARY_SUB_ASSIGN: if (is_type_pointer(type_left)) { right = adjust_for_pointer_arithmetic(dbgi, right, type_left); - mode = get_ir_mode_arithmetic(type_left); + mode = get_ir_mode_storage(type_left); break; } goto normal_node; @@ -2535,19 +2349,20 @@ static ir_node *create_op(dbg_info *dbgi, const binary_expression_t *expression, case EXPR_BINARY_ADD_ASSIGN: if (is_type_pointer(type_left)) { right = adjust_for_pointer_arithmetic(dbgi, right, type_left); - mode = get_ir_mode_arithmetic(type_left); + mode = get_ir_mode_storage(type_left); break; } else if (is_type_pointer(type_right)) { left = adjust_for_pointer_arithmetic(dbgi, left, type_right); - mode = get_ir_mode_arithmetic(type_right); + mode = get_ir_mode_storage(type_right); break; } goto normal_node; default: normal_node: - mode = get_ir_mode_arithmetic(type_right); - left = create_conv(dbgi, left, mode); + mode = get_ir_mode_arithmetic(type_right); + left = create_conv(dbgi, left, mode); + right = create_conv(dbgi, right, mode); break; } @@ -2561,6 +2376,9 @@ normal_node: case EXPR_BINARY_MUL_ASSIGN: case EXPR_BINARY_MUL: return new_d_Mul(dbgi, left, right, mode); + case EXPR_BINARY_DIV: + case EXPR_BINARY_DIV_ASSIGN: + return create_div(dbgi, left, right, mode); case EXPR_BINARY_BITWISE_AND: case EXPR_BINARY_BITWISE_AND_ASSIGN: return new_d_And(dbgi, left, right, mode); @@ -2580,18 +2398,9 @@ normal_node: } else { return new_d_Shr(dbgi, left, right, mode); } - case EXPR_BINARY_DIV: - case EXPR_BINARY_DIV_ASSIGN: { - ir_node *pin = new_Pin(new_NoMem()); - ir_node *op = new_d_Div(dbgi, pin, left, right, mode, - op_pin_state_floats); - ir_node *res = new_d_Proj(dbgi, op, mode, pn_Div_res); - return res; - } case EXPR_BINARY_MOD: case EXPR_BINARY_MOD_ASSIGN: { ir_node *pin = new_Pin(new_NoMem()); - assert(!mode_is_float(mode)); ir_node *op = new_d_Mod(dbgi, pin, left, right, mode, op_pin_state_floats); ir_node *res = new_d_Proj(dbgi, op, mode, pn_Mod_res); @@ -2602,145 +2411,147 @@ normal_node: } } -static ir_node *create_lazy_op(const binary_expression_t *expression) +static ir_node *binop_to_firm(binary_expression_t const *const expr) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - type_t *type = skip_typeref(expression->base.type); - ir_mode *mode = get_ir_mode_arithmetic(type); - - if (is_constant_expression(expression->left) == EXPR_CLASS_CONSTANT) { - bool val = fold_constant_to_bool(expression->left); - expression_kind_t ekind = expression->base.kind; - assert(ekind == EXPR_BINARY_LOGICAL_AND || ekind == EXPR_BINARY_LOGICAL_OR); - if (ekind == EXPR_BINARY_LOGICAL_AND) { - if (!val) { - return new_Const(get_mode_null(mode)); - } + ir_node *const left = expression_to_value(expr->left); + ir_node *const right = expression_to_value(expr->right); + return create_op(expr, left, right); +} + +/** + * Check if a given expression is a GNU __builtin_expect() call. + */ +static bool is_builtin_expect(const expression_t *expression) +{ + if (expression->kind != EXPR_CALL) + return false; + + expression_t *function = expression->call.function; + if (function->kind != EXPR_REFERENCE) + return false; + reference_expression_t *ref = &function->reference; + if (ref->entity->kind != ENTITY_FUNCTION || + ref->entity->function.btk != BUILTIN_EXPECT) + return false; + + return true; +} + +static void compare_to_control_flow(expression_t const *const expr, ir_node *const left, ir_node *const right, ir_relation const relation, jump_target *const true_target, jump_target *const false_target) +{ + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + ir_node *const cmp = new_d_Cmp(dbgi, left, right, relation); + if (is_Const(cmp)) { + if (tarval_is_null(get_Const_tarval(cmp))) { + jump_to_target(false_target); } else { - if (val) { - return new_Const(get_mode_one(mode)); - } + jump_to_target(true_target); } - - if (is_constant_expression(expression->right) == EXPR_CLASS_CONSTANT) { - bool valr = fold_constant_to_bool(expression->right); - return create_Const_from_bool(mode, valr); + } else { + ir_node *const cond = new_d_Cond(dbgi, cmp); + ir_node *const true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true); + ir_node *const false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false); + + /* set branch prediction info based on __builtin_expect */ + if (is_builtin_expect(expr) && is_Cond(cond)) { + call_argument_t *const argument = expr->call.arguments->next; + if (is_constant_expression(argument->expression) == EXPR_CLASS_CONSTANT) { + bool const cnst = fold_constant_to_bool(argument->expression); + cond_jmp_predicate const pred = cnst ? COND_JMP_PRED_TRUE : COND_JMP_PRED_FALSE; + set_Cond_jmp_pred(cond, pred); + } } - return produce_condition_result(expression->right, mode, dbgi); + add_pred_to_jump_target(true_target, true_proj); + add_pred_to_jump_target(false_target, false_proj); } - - return produce_condition_result((const expression_t*) expression, mode, - dbgi); + set_unreachable_now(); } -typedef ir_node * (*create_arithmetic_func)(dbg_info *dbgi, ir_node *left, - ir_node *right, ir_mode *mode); - -static ir_node *create_assign_binop(const binary_expression_t *expression) +static ir_node *control_flow_to_1_0(expression_t const *const expr, jump_target *const true_target, jump_target *const false_target) { - dbg_info *const dbgi = get_dbg_info(&expression->base.source_position); - const expression_t *left_expr = expression->left; - type_t *type = skip_typeref(left_expr->base.type); - ir_node *right = expression_to_firm(expression->right); - ir_node *left_addr = expression_to_addr(left_expr); - ir_node *left = get_value_from_lvalue(left_expr, left_addr); - ir_node *result = create_op(dbgi, expression, left, right); + ir_node *val = NULL; + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + ir_mode *const mode = get_ir_mode_storage(expr->base.type); + jump_target exit_target; + init_jump_target(&exit_target, NULL); - result = create_cast(dbgi, result, expression->right->base.type, type); - result = do_strict_conv(dbgi, result); + if (enter_jump_target(true_target)) { + jump_to_target(&exit_target); + val = new_d_Const(dbgi, get_mode_one(mode)); + } - result = set_value_for_expression_addr(left_expr, result, left_addr); + if (enter_jump_target(false_target)) { + jump_to_target(&exit_target); + ir_node *const zero = new_d_Const(dbgi, get_mode_null(mode)); + if (val) { + ir_node *const in[] = { val, zero }; + val = new_rd_Phi(dbgi, exit_target.block, lengthof(in), in, mode); + } else { + val = zero; + } + } - if (!is_type_compound(type)) { - ir_mode *mode_arithmetic = get_ir_mode_arithmetic(type); - result = create_conv(dbgi, result, mode_arithmetic); + if (!enter_jump_target(&exit_target)) { + set_cur_block(new_Block(0, NULL)); + val = new_d_Bad(dbgi, mode); } - return result; + return val; } -static ir_node *binary_expression_to_firm(const binary_expression_t *expression) +static ir_node *binop_assign_to_firm(binary_expression_t const *const expr) { - expression_kind_t kind = expression->base.kind; + ir_node *const right = expression_to_value(expr->right); + expression_t const *const left_expr = expr->left; + ir_node *const addr = expression_to_addr(left_expr); + ir_node *const left = get_value_from_lvalue(left_expr, addr); + ir_node *result = create_op(expr, left, right); - switch(kind) { - 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->base.source_position); - ir_node *left = expression_to_firm(expression->left); - ir_node *right = expression_to_firm(expression->right); - ir_relation relation = get_relation(kind); - ir_node *cmp = new_d_Cmp(dbgi, left, right, relation); - return cmp; - } - case EXPR_BINARY_ASSIGN: { - ir_node *addr = expression_to_addr(expression->left); - ir_node *right = expression_to_firm(expression->right); - ir_node *res - = set_value_for_expression_addr(expression->left, right, addr); - - type_t *type = skip_typeref(expression->base.type); - if (!is_type_compound(type)) { - ir_mode *mode_arithmetic = get_ir_mode_arithmetic(type); - res = create_conv(NULL, res, mode_arithmetic); - } - return res; - } - case EXPR_BINARY_ADD: - case EXPR_BINARY_SUB: - case EXPR_BINARY_MUL: - case EXPR_BINARY_DIV: - case EXPR_BINARY_MOD: - case EXPR_BINARY_BITWISE_AND: - case EXPR_BINARY_BITWISE_OR: - case EXPR_BINARY_BITWISE_XOR: - case EXPR_BINARY_SHIFTLEFT: - case EXPR_BINARY_SHIFTRIGHT: - { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - ir_node *left = expression_to_firm(expression->left); - ir_node *right = expression_to_firm(expression->right); - return create_op(dbgi, expression, left, right); + type_t *const type = skip_typeref(expr->base.type); + if (is_type_atomic(type, ATOMIC_TYPE_BOOL)) { + jump_target true_target; + jump_target false_target; + init_jump_target(&true_target, NULL); + init_jump_target(&false_target, NULL); + ir_mode *const mode = get_irn_mode(result); + ir_node *const zero = new_Const(get_mode_null(mode)); + compare_to_control_flow((expression_t const*)expr, result, zero, ir_relation_unordered_less_greater, &true_target, &false_target); + result = control_flow_to_1_0((expression_t const*)expr, &true_target, &false_target); } - case EXPR_BINARY_LOGICAL_AND: - case EXPR_BINARY_LOGICAL_OR: - return create_lazy_op(expression); - case EXPR_BINARY_COMMA: - /* create side effects of left side */ - (void) expression_to_firm(expression->left); - return _expression_to_firm(expression->right); - case EXPR_BINARY_ADD_ASSIGN: - case EXPR_BINARY_SUB_ASSIGN: - case EXPR_BINARY_MUL_ASSIGN: - case EXPR_BINARY_MOD_ASSIGN: - case EXPR_BINARY_DIV_ASSIGN: - case EXPR_BINARY_BITWISE_AND_ASSIGN: - case EXPR_BINARY_BITWISE_OR_ASSIGN: - case EXPR_BINARY_BITWISE_XOR_ASSIGN: - case EXPR_BINARY_SHIFTLEFT_ASSIGN: - case EXPR_BINARY_SHIFTRIGHT_ASSIGN: - return create_assign_binop(expression); - default: - panic("TODO binexpr type"); + return set_value_for_expression_addr(left_expr, result, addr); +} + +static ir_node *assign_expression_to_firm(binary_expression_t const *const expr) +{ + ir_node *const addr = expression_to_addr(expr->left); + ir_node *const right = expression_to_value(expr->right); + return set_value_for_expression_addr(expr->left, right, addr); +} + +/** evaluate an expression and discard the result, but still produce the + * side-effects. */ +static void evaluate_expression_discard_result(const expression_t *expression) +{ + type_t *type = skip_typeref(expression->base.type); + if (is_type_complex(type)) { + expression_to_complex(expression); + } else { + expression_to_value(expression); } } +static ir_node *comma_expression_to_firm(binary_expression_t const *const expr) +{ + evaluate_expression_discard_result(expr->left); + return expression_to_value(expr->right); +} + static ir_node *array_access_addr(const array_access_expression_t *expression) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - ir_node *base_addr = expression_to_firm(expression->array_ref); - ir_node *offset = expression_to_firm(expression->index); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); + ir_node *base_addr = expression_to_value(expression->array_ref); + ir_node *offset = expression_to_value(expression->index); type_t *ref_type = skip_typeref(expression->array_ref->base.type); ir_node *real_offset = adjust_for_pointer_arithmetic(dbgi, offset, ref_type); ir_node *result = new_d_Add(dbgi, base_addr, real_offset, mode_P_data); @@ -2751,7 +2562,7 @@ 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->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); ir_node *addr = array_access_addr(expression); type_t *type = revert_automatic_type_conversion( (const expression_t*) expression); @@ -2777,12 +2588,7 @@ static long get_offsetof_offset(const offsetof_expression_t *expression) compound_t *compound = type->compound.compound; entity_t *iter = compound->members.entities; - for ( ; iter != NULL; iter = iter->base.next) { - if (iter->base.symbol == symbol) { - break; - } - } - assert(iter != NULL); + for (; iter->base.symbol != symbol; iter = iter->base.next) {} assert(iter->kind == ENTITY_COMPOUND_MEMBER); assert(iter->declaration.kind == DECLARATION_KIND_COMPOUND_MEMBER); @@ -2810,10 +2616,10 @@ static long get_offsetof_offset(const offsetof_expression_t *expression) static ir_node *offsetof_to_firm(const offsetof_expression_t *expression) { - ir_mode *mode = get_ir_mode_arithmetic(expression->base.type); + ir_mode *mode = get_ir_mode_storage(expression->base.type); long offset = get_offsetof_offset(expression); ir_tarval *tv = new_tarval_from_long(offset, mode); - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); return new_d_Const(dbgi, tv); } @@ -2828,13 +2634,9 @@ static ir_entity *create_initializer_entity(dbg_info *dbgi, type_t *type) { /* create the ir_initializer */ - ir_graph *const old_current_ir_graph = current_ir_graph; - current_ir_graph = get_const_code_irg(); - + PUSH_IRG(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; + POP_IRG(); ident *const id = id_unique("initializer.%u"); ir_type *const irtype = get_ir_type(type); @@ -2849,11 +2651,13 @@ static ir_entity *create_initializer_entity(dbg_info *dbgi, static ir_node *compound_literal_addr(compound_literal_expression_t const *const expression) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); type_t *type = expression->type; initializer_t *initializer = expression->initializer; - if (is_constant_initializer(initializer) == EXPR_CLASS_CONSTANT) { + if (expression->global_scope || + ((type->base.qualifiers & TYPE_QUALIFIER_CONST) + && is_constant_initializer(initializer) == EXPR_CLASS_CONSTANT)) { ir_entity *entity = create_initializer_entity(dbgi, initializer, type); return create_symconst(dbgi, entity); } else { @@ -2877,7 +2681,7 @@ static ir_node *compound_literal_addr(compound_literal_expression_t const *const static ir_node *compound_literal_to_firm(compound_literal_expression_t const* const expr) { - dbg_info *const dbgi = get_dbg_info(&expr->base.source_position); + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); type_t *const type = expr->type; ir_node *const addr = compound_literal_addr(expr); return deref_address(dbgi, type, addr); @@ -2892,7 +2696,7 @@ static ir_node *sizeof_to_firm(const typeprop_expression_t *expression) /* §6.5.3.4:2 if the type is a VLA, evaluate the expression. */ if (is_type_array(type) && type->array.is_vla && expression->tp_expression != NULL) { - expression_to_firm(expression->tp_expression); + expression_to_value(expression->tp_expression); } return get_type_size_node(type); @@ -2908,7 +2712,7 @@ static entity_t *get_expression_entity(const expression_t *expression) static unsigned get_cparser_entity_alignment(const entity_t *entity) { - switch(entity->kind) { + switch (entity->kind) { case DECLARATION_KIND_CASES: return entity->declaration.alignment; case ENTITY_STRUCT: @@ -2942,15 +2746,15 @@ static ir_node *alignof_to_firm(const typeprop_expression_t *expression) alignment = get_type_alignment(type); } - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - ir_mode *mode = get_ir_mode_arithmetic(expression->base.type); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); + ir_mode *mode = get_ir_mode_storage(expression->base.type); ir_tarval *tv = new_tarval_from_long(alignment, mode); return new_d_Const(dbgi, tv); } static void init_ir_types(void); -static ir_tarval *fold_constant_to_tarval(const expression_t *expression) +ir_tarval *fold_constant_to_tarval(const expression_t *expression) { assert(is_constant_expression(expression) == EXPR_CLASS_CONSTANT); @@ -2963,24 +2767,49 @@ static ir_tarval *fold_constant_to_tarval(const expression_t *expression) init_ir_types(); - ir_graph *old_current_ir_graph = current_ir_graph; - current_ir_graph = get_const_code_irg(); + PUSH_IRG(get_const_code_irg()); + ir_node *const cnst = expression_to_value(expression); + POP_IRG(); + + set_optimize(old_optimize); + set_opt_constant_folding(old_constant_folding); + constant_folding = constant_folding_old; - ir_node *const cnst = _expression_to_firm(expression); + if (!is_Const(cnst)) + panic("couldn't fold constant"); + return get_Const_tarval(cnst); +} + +static complex_constant fold_complex_constant(const expression_t *expression) +{ + assert(is_constant_expression(expression) == EXPR_CLASS_CONSTANT); + + bool constant_folding_old = constant_folding; + constant_folding = true; + int old_optimize = get_optimize(); + int old_constant_folding = get_opt_constant_folding(); + set_optimize(1); + set_opt_constant_folding(1); + + init_ir_types(); + + PUSH_IRG(get_const_code_irg()); + complex_value value = expression_to_complex(expression); + POP_IRG(); - current_ir_graph = old_current_ir_graph; set_optimize(old_optimize); set_opt_constant_folding(old_constant_folding); - if (!is_Const(cnst)) { + if (!is_Const(value.real) || !is_Const(value.imag)) { panic("couldn't fold constant"); } constant_folding = constant_folding_old; - ir_tarval *const tv = get_Const_tarval(cnst); - ir_mode *const mode = get_ir_mode_arithmetic(skip_typeref(expression->base.type)); - return tarval_convert_to(tv, mode); + return (complex_constant) { + get_Const_tarval(value.real), + get_Const_tarval(value.imag) + }; } /* this function is only used in parser.c, but it relies on libfirm functionality */ @@ -3002,64 +2831,64 @@ long fold_constant_to_int(const expression_t *expression) bool fold_constant_to_bool(const expression_t *expression) { - ir_tarval *tv = fold_constant_to_tarval(expression); - return !tarval_is_null(tv); + type_t *type = skip_typeref(expression->base.type); + if (is_type_complex(type)) { + complex_constant tvs = fold_complex_constant(expression); + return !tarval_is_null(tvs.real) || !tarval_is_null(tvs.imag); + } else { + ir_tarval *tv = fold_constant_to_tarval(expression); + return !tarval_is_null(tv); + } } static ir_node *conditional_to_firm(const conditional_expression_t *expression) { - dbg_info *const dbgi = get_dbg_info(&expression->base.source_position); + jump_target true_target; + jump_target false_target; + init_jump_target(&true_target, NULL); + init_jump_target(&false_target, NULL); + ir_node *const cond_expr = expression_to_control_flow(expression->condition, &true_target, &false_target); + + ir_node *val = NULL; + dbg_info *const dbgi = get_dbg_info(&expression->base.pos); + type_t *const type = skip_typeref(expression->base.type); + ir_mode *const mode = get_ir_mode_arithmetic(type); + jump_target exit_target; + init_jump_target(&exit_target, NULL); + + if (enter_jump_target(&true_target)) { + if (expression->true_expression) { + val = expression_to_value(expression->true_expression); + } else if (cond_expr) { + val = cond_expr; + } else { + /* Condition ended with a short circuit (&&, ||, !) operation or a + * comparison. Generate a "1" as value for the true branch. */ + val = new_Const(get_mode_one(mode)); + } + if (val) + val = create_conv(dbgi, val, mode); + jump_to_target(&exit_target); + } - /* first try to fold a constant condition */ - if (is_constant_expression(expression->condition) == EXPR_CLASS_CONSTANT) { - bool val = fold_constant_to_bool(expression->condition); + if (enter_jump_target(&false_target)) { + ir_node *false_val = expression_to_value(expression->false_expression); + if (false_val) + false_val = create_conv(dbgi, false_val, mode); + jump_to_target(&exit_target); if (val) { - expression_t *true_expression = expression->true_expression; - if (true_expression == NULL) - true_expression = expression->condition; - return expression_to_firm(true_expression); + ir_node *const in[] = { val, false_val }; + val = new_rd_Phi(dbgi, exit_target.block, lengthof(in), in, get_irn_mode(val)); } else { - return expression_to_firm(expression->false_expression); + val = false_val; } } - ir_node *const true_block = new_immBlock(); - ir_node *const false_block = new_immBlock(); - ir_node *const cond_expr = create_condition_evaluation(expression->condition, true_block, false_block); - mature_immBlock(true_block); - mature_immBlock(false_block); - - set_cur_block(true_block); - ir_node *true_val; - if (expression->true_expression != NULL) { - true_val = expression_to_firm(expression->true_expression); - } else if (cond_expr != NULL && get_irn_mode(cond_expr) != mode_b) { - true_val = cond_expr; - } else { - /* Condition ended with a short circuit (&&, ||, !) operation or a - * comparison. Generate a "1" as value for the true branch. */ - true_val = new_Const(get_mode_one(mode_Is)); + if (!enter_jump_target(&exit_target)) { + set_cur_block(new_Block(0, NULL)); + if (!is_type_void(type)) + val = new_Bad(mode); } - ir_node *const true_jmp = new_d_Jmp(dbgi); - - set_cur_block(false_block); - ir_node *const false_val = expression_to_firm(expression->false_expression); - ir_node *const false_jmp = new_d_Jmp(dbgi); - - /* create the common block */ - ir_node *const in_cf[2] = { true_jmp, false_jmp }; - ir_node *const block = new_Block(lengthof(in_cf), in_cf); - set_cur_block(block); - - /* TODO improve static semantics, so either both or no values are NULL */ - if (true_val == NULL || false_val == NULL) - return NULL; - - ir_node *const in[2] = { true_val, false_val }; - type_t *const type = skip_typeref(expression->base.type); - ir_mode *const mode = get_ir_mode_arithmetic(type); - ir_node *const val = new_d_Phi(dbgi, lengthof(in), in, mode); - return val; } @@ -3068,11 +2897,11 @@ static ir_node *conditional_to_firm(const conditional_expression_t *expression) */ static ir_node *select_addr(const select_expression_t *expression) { - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); construct_select_compound(expression); - ir_node *compound_addr = expression_to_firm(expression->compound); + ir_node *compound_addr = expression_to_value(expression->compound); entity_t *entry = expression->compound_entry; assert(entry->kind == ENTITY_COMPOUND_MEMBER); @@ -3092,7 +2921,7 @@ 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->base.source_position); + dbg_info *dbgi = get_dbg_info(&expression->base.pos); ir_node *addr = select_addr(expression); type_t *type = revert_automatic_type_conversion( (const expression_t*) expression); @@ -3146,11 +2975,6 @@ static ir_node *classify_type_to_firm(const classify_type_expression_t *const ex case TYPE_ATOMIC: { const atomic_type_t *const atomic_type = &type->atomic; switch (atomic_type->akind) { - /* should not be reached */ - case ATOMIC_TYPE_INVALID: - tc = no_type_class; - goto make_const; - /* gcc cannot do that */ case ATOMIC_TYPE_VOID: tc = void_type_class; @@ -3178,7 +3002,7 @@ static ir_node *classify_type_to_firm(const classify_type_expression_t *const ex tc = real_type_class; goto make_const; } - panic("Unexpected atomic type in classify_type_to_firm()."); + panic("Unexpected atomic type."); } case TYPE_COMPLEX: tc = complex_type_class; goto make_const; @@ -3201,11 +3025,11 @@ static ir_node *classify_type_to_firm(const classify_type_expression_t *const ex case TYPE_ERROR: break; } - panic("unexpected TYPE classify_type_to_firm()."); + panic("unexpected type."); } make_const:; - dbg_info *const dbgi = get_dbg_info(&expr->base.source_position); + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); ir_mode *const mode = atomic_modes[ATOMIC_TYPE_INT]; ir_tarval *const tv = new_tarval_from_long(tc, mode); return new_d_Const(dbgi, tv); @@ -3214,23 +3038,23 @@ make_const:; static ir_node *function_name_to_firm( const funcname_expression_t *const expr) { - switch(expr->kind) { + switch (expr->kind) { case FUNCNAME_FUNCTION: case FUNCNAME_PRETTY_FUNCTION: case FUNCNAME_FUNCDNAME: if (current_function_name == NULL) { - const source_position_t *const src_pos = &expr->base.source_position; - const char *name = current_function_entity->base.symbol->string; - const string_t string = { name, strlen(name) + 1 }; + position_t const *const src_pos = &expr->base.pos; + char const *const name = current_function_entity->base.symbol->string; + string_t const string = { name, strlen(name), STRING_ENCODING_CHAR }; current_function_name = string_to_firm(src_pos, "__func__.%u", &string); } return current_function_name; case FUNCNAME_FUNCSIG: if (current_funcsig == NULL) { - const source_position_t *const src_pos = &expr->base.source_position; - ir_entity *ent = get_irg_entity(current_ir_graph); - const char *const name = get_entity_ld_name(ent); - const string_t string = { name, strlen(name) + 1 }; + position_t const *const src_pos = &expr->base.pos; + ir_entity *const ent = get_irg_entity(current_ir_graph); + char const *const name = get_entity_ld_name(ent); + string_t const string = { name, strlen(name), STRING_ENCODING_CHAR }; current_funcsig = string_to_firm(src_pos, "__FUNCSIG__.%u", &string); } return current_funcsig; @@ -3259,11 +3083,11 @@ static ir_node *va_start_expression_to_firm( } ir_node *const frame = get_irg_frame(current_ir_graph); - dbg_info *const dbgi = get_dbg_info(&expr->base.source_position); + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); ir_node *const no_mem = new_NoMem(); ir_node *const arg_sel = new_d_simpleSel(dbgi, no_mem, frame, param_ent); - set_value_for_expression(expr->ap, arg_sel); + set_value_for_expression_addr(expr->ap, arg_sel, NULL); return NULL; } @@ -3274,7 +3098,7 @@ static ir_node *va_arg_expression_to_firm(const va_arg_expression_t *const expr) expression_t *const ap_expr = expr->ap; ir_node *const ap_addr = expression_to_addr(ap_expr); ir_node *const ap = get_value_from_lvalue(ap_expr, ap_addr); - dbg_info *const dbgi = get_dbg_info(&expr->base.source_position); + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); ir_node *const res = deref_address(dbgi, type, ap); ir_node *const cnst = get_type_size_node(expr->base.type); @@ -3295,15 +3119,15 @@ static ir_node *va_arg_expression_to_firm(const va_arg_expression_t *const expr) */ static ir_node *va_copy_expression_to_firm(const va_copy_expression_t *const expr) { - ir_node *const src = expression_to_firm(expr->src); - set_value_for_expression(expr->dst, src); + ir_node *const src = expression_to_value(expr->src); + set_value_for_expression_addr(expr->dst, src, NULL); return NULL; } static ir_node *dereference_addr(const unary_expression_t *const expression) { assert(expression->base.kind == EXPR_UNARY_DEREFERENCE); - return expression_to_firm(expression->value); + return expression_to_value(expression->value); } /** @@ -3311,11 +3135,9 @@ static ir_node *dereference_addr(const unary_expression_t *const expression) */ static ir_node *expression_to_addr(const expression_t *expression) { - switch(expression->kind) { + switch (expression->kind) { case EXPR_ARRAY_ACCESS: return array_access_addr(&expression->array_access); - case EXPR_CALL: - return call_expression_to_firm(&expression->call); case EXPR_COMPOUND_LITERAL: return compound_literal_addr(&expression->compound_literal); case EXPR_REFERENCE: @@ -3333,7 +3155,7 @@ static ir_node *expression_to_addr(const expression_t *expression) static ir_node *builtin_constant_to_firm( const builtin_constant_expression_t *expression) { - ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type); + ir_mode *const mode = get_ir_mode_storage(expression->base.type); bool const v = is_constant_expression(expression->value) == EXPR_CLASS_CONSTANT; return create_Const_from_bool(mode, v); } @@ -3344,28 +3166,18 @@ static ir_node *builtin_types_compatible_to_firm( type_t *const left = get_unqualified_type(skip_typeref(expression->left)); type_t *const right = get_unqualified_type(skip_typeref(expression->right)); bool const value = types_compatible(left, right); - ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type); + ir_mode *const mode = get_ir_mode_storage(expression->base.type); return create_Const_from_bool(mode, value); } -static ir_node *get_label_block(label_t *label) +static void prepare_label_target(label_t *const label) { - if (label->block != NULL) - return label->block; - - /* beware: might be called from create initializer with current_ir_graph - * set to const_code_irg. */ - ir_graph *rem = current_ir_graph; - current_ir_graph = current_function; - - ir_node *block = new_immBlock(); - - label->block = block; - - ARR_APP1(label_t *, all_labels, label); - - current_ir_graph = rem; - return block; + if (label->address_taken && !label->indirect_block) { + ir_node *const iblock = new_immBlock(); + label->indirect_block = iblock; + ARR_APP1(ir_node*, ijmp_blocks, iblock); + jump_from_block_to_target(&label->target, iblock); + } } /** @@ -3374,87 +3186,184 @@ static ir_node *get_label_block(label_t *label) */ static ir_node *label_address_to_firm(const label_address_expression_t *label) { - dbg_info *dbgi = get_dbg_info(&label->base.source_position); - ir_node *block = get_label_block(label->label); - ir_entity *entity = create_Block_entity(block); + /* Beware: Might be called from create initializer with current_ir_graph + * set to const_code_irg. */ + PUSH_IRG(current_function); + prepare_label_target(label->label); + POP_IRG(); symconst_symbol value; - value.entity_p = entity; + value.entity_p = create_Block_entity(label->label->indirect_block); + dbg_info *const dbgi = get_dbg_info(&label->base.pos); return new_d_SymConst(dbgi, mode_P_code, value, symconst_addr_ent); } -/** - * creates firm nodes for an expression. The difference between this function - * and expression_to_firm is, that this version might produce mode_b nodes - * instead of mode_Is. - */ -static ir_node *_expression_to_firm(expression_t const *const expr) +static ir_node *expression_to_value(expression_t const *const expr) { #ifndef NDEBUG if (!constant_folding) { assert(!expr->base.transformed); ((expression_t*)expr)->base.transformed = true; } + assert(!is_type_complex(skip_typeref(expr->base.type))); #endif switch (expr->kind) { + case EXPR_UNARY_CAST: + if (is_type_atomic(skip_typeref(expr->base.type), ATOMIC_TYPE_BOOL)) { + case EXPR_BINARY_EQUAL: + 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: + case EXPR_BINARY_LESS: + case EXPR_BINARY_LESSEQUAL: + case EXPR_BINARY_LOGICAL_AND: + case EXPR_BINARY_LOGICAL_OR: + case EXPR_BINARY_NOTEQUAL: + case EXPR_UNARY_NOT:; + jump_target true_target; + jump_target false_target; + init_jump_target(&true_target, NULL); + init_jump_target(&false_target, NULL); + expression_to_control_flow(expr, &true_target, &false_target); + return control_flow_to_1_0(expr, &true_target, &false_target); + } else { + return create_cast(&expr->unary); + } + + case EXPR_BINARY_ADD: + case EXPR_BINARY_BITWISE_AND: + case EXPR_BINARY_BITWISE_OR: + case EXPR_BINARY_BITWISE_XOR: + case EXPR_BINARY_DIV: + case EXPR_BINARY_MOD: + case EXPR_BINARY_MUL: + case EXPR_BINARY_SHIFTLEFT: + case EXPR_BINARY_SHIFTRIGHT: + case EXPR_BINARY_SUB: + return binop_to_firm(&expr->binary); + + case EXPR_BINARY_ADD_ASSIGN: + case EXPR_BINARY_BITWISE_AND_ASSIGN: + case EXPR_BINARY_BITWISE_OR_ASSIGN: + case EXPR_BINARY_BITWISE_XOR_ASSIGN: + case EXPR_BINARY_DIV_ASSIGN: + case EXPR_BINARY_MOD_ASSIGN: + case EXPR_BINARY_MUL_ASSIGN: + case EXPR_BINARY_SHIFTLEFT_ASSIGN: + case EXPR_BINARY_SHIFTRIGHT_ASSIGN: + case EXPR_BINARY_SUB_ASSIGN: + return binop_assign_to_firm(&expr->binary); + + { + bool inc; + bool pre; + case EXPR_UNARY_POSTFIX_DECREMENT: inc = false; pre = false; goto incdec; + case EXPR_UNARY_POSTFIX_INCREMENT: inc = true; pre = false; goto incdec; + case EXPR_UNARY_PREFIX_DECREMENT: inc = false; pre = true; goto incdec; + case EXPR_UNARY_PREFIX_INCREMENT: inc = true; pre = true; goto incdec; +incdec: + return incdec_to_firm(&expr->unary, inc, pre); + } + + case EXPR_UNARY_IMAG: { + complex_value irvalue = expression_to_complex(expr->unary.value); + return irvalue.imag; + } + case EXPR_UNARY_REAL: { + complex_value irvalue = expression_to_complex(expr->unary.value); + return irvalue.real; + } + case EXPR_ALIGNOF: return alignof_to_firm( &expr->typeprop); case EXPR_ARRAY_ACCESS: return array_access_to_firm( &expr->array_access); - case EXPR_BINARY_CASES: return binary_expression_to_firm( &expr->binary); + case EXPR_BINARY_ASSIGN: return assign_expression_to_firm( &expr->binary); + case EXPR_BINARY_COMMA: return comma_expression_to_firm( &expr->binary); case EXPR_BUILTIN_CONSTANT_P: return builtin_constant_to_firm( &expr->builtin_constant); case EXPR_BUILTIN_TYPES_COMPATIBLE_P: return builtin_types_compatible_to_firm(&expr->builtin_types_compatible); case EXPR_CALL: return call_expression_to_firm( &expr->call); case EXPR_CLASSIFY_TYPE: return classify_type_to_firm( &expr->classify_type); case EXPR_COMPOUND_LITERAL: return compound_literal_to_firm( &expr->compound_literal); case EXPR_CONDITIONAL: return conditional_to_firm( &expr->conditional); + case EXPR_ENUM_CONSTANT: return enum_constant_to_firm( &expr->reference); case EXPR_FUNCNAME: return function_name_to_firm( &expr->funcname); case EXPR_LABEL_ADDRESS: return label_address_to_firm( &expr->label_address); case EXPR_LITERAL_CASES: return literal_to_firm( &expr->literal); + case EXPR_LITERAL_CHARACTER: return char_literal_to_firm( &expr->string_literal); case EXPR_OFFSETOF: return offsetof_to_firm( &expr->offsetofe); case EXPR_REFERENCE: return reference_expression_to_firm( &expr->reference); - case EXPR_ENUM_CONSTANT: return enum_constant_to_firm( &expr->reference); case EXPR_SELECT: return select_to_firm( &expr->select); case EXPR_SIZEOF: return sizeof_to_firm( &expr->typeprop); case EXPR_STATEMENT: return statement_expression_to_firm( &expr->statement); - case EXPR_UNARY_CASES: return unary_expression_to_firm( &expr->unary); + case EXPR_STRING_LITERAL: return string_to_firm( &expr->base.pos, "str.%u", &expr->string_literal.value); + case EXPR_UNARY_ASSUME: return handle_assume( expr->unary.value); + case EXPR_UNARY_COMPLEMENT: return complement_to_firm( &expr->unary); + case EXPR_UNARY_DEREFERENCE: return dereference_to_firm( &expr->unary); + case EXPR_UNARY_NEGATE: return negate_to_firm( &expr->unary); + case EXPR_UNARY_PLUS: return expression_to_value( expr->unary.value); + case EXPR_UNARY_TAKE_ADDRESS: return expression_to_addr( expr->unary.value); case EXPR_VA_ARG: return va_arg_expression_to_firm( &expr->va_arge); case EXPR_VA_COPY: return va_copy_expression_to_firm( &expr->va_copye); case EXPR_VA_START: return va_start_expression_to_firm( &expr->va_starte); - case EXPR_WIDE_STRING_LITERAL: return wide_string_literal_to_firm( &expr->string_literal); - case EXPR_STRING_LITERAL: return string_to_firm(&expr->base.source_position, "str.%u", &expr->literal.value); + case EXPR_UNARY_DELETE: + case EXPR_UNARY_DELETE_ARRAY: + case EXPR_UNARY_THROW: + panic("expression not implemented"); - case EXPR_ERROR: break; + case EXPR_ERROR: + break; } - panic("invalid expression found"); + panic("invalid expression"); } +static void complex_equality_evaluation(const binary_expression_t *binexpr, + jump_target *const true_target, jump_target *const false_target, + ir_relation relation); + +static complex_value complex_to_control_flow(const expression_t *expression, + jump_target *true_target, + jump_target *false_target); + /** - * Check if a given expression is a GNU __builtin_expect() call. + * create a short-circuit expression evaluation that tries to construct + * efficient control flow structures for &&, || and ! expressions */ -static bool is_builtin_expect(const expression_t *expression) +static ir_node *expression_to_control_flow(expression_t const *const expr, jump_target *const true_target, jump_target *const false_target) { - if (expression->kind != EXPR_CALL) - return false; + switch (expr->kind) { + case EXPR_UNARY_NOT: + expression_to_control_flow(expr->unary.value, false_target, true_target); + return NULL; - expression_t *function = expression->call.function; - if (function->kind != EXPR_REFERENCE) - return false; - reference_expression_t *ref = &function->reference; - if (ref->entity->kind != ENTITY_FUNCTION || - ref->entity->function.btk != BUILTIN_EXPECT) - return false; + case EXPR_BINARY_LOGICAL_AND: { + jump_target extra_target; + init_jump_target(&extra_target, NULL); + expression_to_control_flow(expr->binary.left, &extra_target, false_target); + if (enter_jump_target(&extra_target)) + expression_to_control_flow(expr->binary.right, true_target, false_target); + return NULL; + } - return true; -} + case EXPR_BINARY_LOGICAL_OR: { + jump_target extra_target; + init_jump_target(&extra_target, NULL); + expression_to_control_flow(expr->binary.left, true_target, &extra_target); + if (enter_jump_target(&extra_target)) + expression_to_control_flow(expr->binary.right, true_target, false_target); + return NULL; + } + + case EXPR_BINARY_COMMA: + evaluate_expression_discard_result(expr->binary.left); + return expression_to_control_flow(expr->binary.right, true_target, false_target); -static bool produces_mode_b(const expression_t *expression) -{ - switch (expression->kind) { 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: @@ -3463,107 +3372,674 @@ static bool produces_mode_b(const expression_t *expression) case EXPR_BINARY_ISLESSEQUAL: case EXPR_BINARY_ISLESSGREATER: case EXPR_BINARY_ISUNORDERED: - case EXPR_UNARY_NOT: - return true; + case EXPR_BINARY_LESS: + case EXPR_BINARY_LESSEQUAL: + case EXPR_BINARY_NOTEQUAL: { + type_t *const type = skip_typeref(expr->binary.left->base.type); + ir_relation const relation = get_relation(expr->kind); + if (is_type_complex(type)) { + complex_equality_evaluation(&expr->binary, true_target, + false_target, relation); + return NULL; + } + + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + ir_mode *const mode = get_ir_mode_arithmetic(type); + ir_node *const left = create_conv(dbgi, expression_to_value(expr->binary.left), mode); + ir_node *const right = create_conv(dbgi, expression_to_value(expr->binary.right), mode); + compare_to_control_flow(expr, left, right, relation, true_target, false_target); + return NULL; + } + + case EXPR_UNARY_CAST: + if (is_type_atomic(skip_typeref(expr->base.type), ATOMIC_TYPE_BOOL)) { + expression_to_control_flow(expr->unary.value, true_target, false_target); + return NULL; + } else { + default:; + type_t *const type = skip_typeref(expr->base.type); + if (is_type_complex(type)) { + complex_to_control_flow(expr, true_target, false_target); + return NULL; + } + + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + ir_mode *const mode = get_ir_mode_arithmetic(type); + ir_node *const val = create_conv(dbgi, expression_to_value(expr), mode); + ir_node *const left = val; + ir_node *const right = new_Const(get_mode_null(get_irn_mode(val))); + ir_relation const relation = ir_relation_unordered_less_greater; + compare_to_control_flow(expr, left, right, relation, true_target, false_target); + return val; + } + } +} + +static complex_value complex_conv(dbg_info *dbgi, complex_value value, + ir_mode *mode) +{ + return (complex_value) { + create_conv(dbgi, value.real, mode), + create_conv(dbgi, value.imag, mode) + }; +} + +static complex_value complex_conv_to_storage(dbg_info *const dbgi, + complex_value const value, type_t *const type) +{ + ir_mode *const mode = get_complex_mode_storage(type); + return complex_conv(dbgi, value, mode); +} + +static void store_complex(dbg_info *dbgi, ir_node *addr, type_t *type, + complex_value value) +{ + value = complex_conv_to_storage(dbgi, value, type); + ir_graph *const irg = current_ir_graph; + ir_type *const irtype = get_ir_type(type); + ir_node *const mem = get_store(); + ir_node *const nomem = get_irg_no_mem(irg); + ir_mode *const mode = get_complex_mode_storage(type); + ir_node *const real = create_conv(dbgi, value.real, mode); + ir_node *const imag = create_conv(dbgi, value.imag, mode); + ir_node *const storer = new_d_Store(dbgi, mem, addr, real, cons_floats); + ir_node *const memr = new_Proj(storer, mode_M, pn_Store_M); + ir_mode *const muint = atomic_modes[ATOMIC_TYPE_UINT]; + ir_node *const one = new_Const(get_mode_one(muint)); + ir_node *const in[1] = { one }; + ir_entity *const arrent = get_array_element_entity(irtype); + ir_node *const addri = new_d_Sel(dbgi, nomem, addr, 1, in, arrent); + ir_node *const storei = new_d_Store(dbgi, memr, addri, imag, cons_floats); + ir_node *const memi = new_Proj(storei, mode_M, pn_Store_M); + set_store(memi); +} + +static ir_node *complex_to_memory(dbg_info *dbgi, type_t *type, + complex_value value) +{ + ir_graph *const irg = current_ir_graph; + ir_type *const frame_type = get_irg_frame_type(irg); + ident *const id = id_unique("cmplex_tmp.%u"); + ir_type *const irtype = get_ir_type(type); + ir_entity *const tmp_storage = new_entity(frame_type, id, irtype); + ir_node *const frame = get_irg_frame(irg); + ir_node *const nomem = get_irg_no_mem(irg); + ir_node *const addr = new_simpleSel(nomem, frame, tmp_storage); + set_entity_compiler_generated(tmp_storage, 1); + store_complex(dbgi, addr, type, value); + return addr; +} + +static complex_value read_localvar_complex(dbg_info *dbgi, entity_t *const entity) +{ + assert(entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE + || entity->declaration.kind == DECLARATION_KIND_PARAMETER); + type_t *const type = skip_typeref(entity->declaration.type); + ir_mode *const mode = get_complex_mode_storage(type); + ir_node *const real = get_value(entity->variable.v.value_number, mode); + ir_node *const imag = get_value(entity->variable.v.value_number+1, mode); + ir_mode *const mode_arithmetic = get_complex_mode_arithmetic(type); + return (complex_value) { + create_conv(dbgi, real, mode_arithmetic), + create_conv(dbgi, imag, mode_arithmetic) + }; +} + +static complex_value complex_deref_address(dbg_info *const dbgi, + type_t *type, ir_node *const addr, + ir_cons_flags flags) +{ + type = skip_typeref(type); + assert(is_type_complex(type)); + + if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) + flags |= cons_volatile; + ir_mode *const mode = get_complex_mode_storage(type); + ir_node *const memory = get_store(); + ir_node *const load = new_d_Load(dbgi, memory, addr, mode, flags); + ir_node *const load_mem = new_Proj(load, mode_M, pn_Load_M); + ir_node *const load_res = new_Proj(load, mode, pn_Load_res); + + ir_type *const irtype = get_ir_type(type); + ir_mode *const mode_uint = atomic_modes[ATOMIC_TYPE_UINT]; + ir_node *const in[1] = { new_Const(get_mode_one(mode_uint)) }; + ir_entity *const entity = get_array_element_entity(irtype); + ir_node *const nomem = get_irg_no_mem(current_ir_graph); + ir_node *const addr2 = new_Sel(nomem, addr, 1, in, entity); + ir_node *const load2 = new_d_Load(dbgi, load_mem, addr2, mode, flags); + ir_node *const load_mem2 = new_Proj(load2, mode_M, pn_Load_M); + ir_node *const load_res2 = new_Proj(load2, mode, pn_Load_res); + set_store(load_mem2); + + return (complex_value) { load_res, load_res2 }; +} + +static complex_value complex_reference_to_firm(const reference_expression_t *ref) +{ + dbg_info *const dbgi = get_dbg_info(&ref->base.pos); + entity_t *const entity = ref->entity; + assert(is_declaration(entity)); + + switch ((declaration_kind_t)entity->declaration.kind) { + case DECLARATION_KIND_LOCAL_VARIABLE: + case DECLARATION_KIND_PARAMETER: + return read_localvar_complex(dbgi, entity); + default: { + ir_node *const addr = reference_addr(ref); + return complex_deref_address(dbgi, entity->declaration.type, addr, cons_none); + } + } +} + +static complex_value complex_select_to_firm(const select_expression_t *select) +{ + dbg_info *const dbgi = get_dbg_info(&select->base.pos); + ir_node *const addr = select_addr(select); + type_t *const type = skip_typeref(select->base.type); + return complex_deref_address(dbgi, type, addr, cons_none); +} + +static complex_value complex_array_access_to_firm( + const array_access_expression_t *expression) +{ + dbg_info *dbgi = get_dbg_info(&expression->base.pos); + ir_node *addr = array_access_addr(expression); + type_t *type = skip_typeref(expression->base.type); + assert(is_type_complex(type)); + return complex_deref_address(dbgi, type, addr, cons_none); +} + +static complex_value get_complex_from_lvalue(const expression_t *expression, + ir_node *addr) +{ + dbg_info *dbgi = get_dbg_info(&expression->base.pos); + + if (expression->kind == EXPR_REFERENCE) { + const reference_expression_t *ref = &expression->reference; + + entity_t *entity = ref->entity; + assert(entity->kind == ENTITY_VARIABLE + || entity->kind == ENTITY_PARAMETER); + assert(entity->declaration.kind != DECLARATION_KIND_UNKNOWN); + if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE || + entity->declaration.kind == DECLARATION_KIND_PARAMETER) { + return read_localvar_complex(dbgi, entity); + } + } + + assert(addr != NULL); + return complex_deref_address(dbgi, expression->base.type, addr, cons_none); +} + +static complex_value complex_cast_to_firm(const unary_expression_t *expression) +{ + const expression_t *const value = expression->value; + dbg_info *const dbgi = get_dbg_info(&expression->base.pos); + type_t *const from_type = skip_typeref(value->base.type); + type_t *const to_type = skip_typeref(expression->base.type); + ir_mode *const mode = get_complex_mode_storage(to_type); + + if (is_type_complex(from_type)) { + complex_value cvalue = expression_to_complex(value); + return complex_conv(dbgi, cvalue, mode); + } else { + ir_node *const value_node = expression_to_value(value); + ir_node *const zero = new_Const(get_mode_null(mode)); + ir_node *const casted = create_conv(dbgi, value_node, mode); + return (complex_value) { casted, zero }; + } +} + +static complex_value complex_literal_to_firm(const literal_expression_t *literal) +{ + type_t *type = skip_typeref(literal->base.type); + ir_mode *mode = get_complex_mode_storage(type); + ir_node *litvalue = literal_to_firm_(literal, mode); + ir_node *zero = new_Const(get_mode_null(mode)); + return (complex_value) { zero, litvalue }; +} + +typedef complex_value (*new_complex_binop)(dbg_info *dbgi, complex_value left, + complex_value right, ir_mode *mode); + +static complex_value new_complex_add(dbg_info *dbgi, complex_value left, + complex_value right, ir_mode *mode) +{ + return (complex_value) { + new_d_Add(dbgi, left.real, right.real, mode), + new_d_Add(dbgi, left.imag, right.imag, mode) + }; +} + +static complex_value new_complex_sub(dbg_info *dbgi, complex_value left, + complex_value right, ir_mode *mode) +{ + return (complex_value) { + new_d_Sub(dbgi, left.real, right.real, mode), + new_d_Sub(dbgi, left.imag, right.imag, mode) + }; +} + +static complex_value new_complex_mul(dbg_info *dbgi, complex_value left, + complex_value right, ir_mode *mode) +{ + ir_node *const op1 = new_d_Mul(dbgi, left.real, right.real, mode); + ir_node *const op2 = new_d_Mul(dbgi, left.imag, right.imag, mode); + ir_node *const op3 = new_d_Mul(dbgi, left.real, right.imag, mode); + ir_node *const op4 = new_d_Mul(dbgi, left.imag, right.real, mode); + return (complex_value) { + new_d_Sub(dbgi, op1, op2, mode), + new_d_Add(dbgi, op3, op4, mode) + }; +} + +static complex_value new_complex_div(dbg_info *dbgi, complex_value left, + complex_value right, ir_mode *mode) +{ + ir_node *const op1 = new_d_Mul(dbgi, left.real, right.real, mode); + ir_node *const op2 = new_d_Mul(dbgi, left.imag, right.imag, mode); + ir_node *const op3 = new_d_Mul(dbgi, left.imag, right.real, mode); + ir_node *const op4 = new_d_Mul(dbgi, left.real, right.imag, mode); + ir_node *const op5 = new_d_Mul(dbgi, right.real, right.real, mode); + ir_node *const op6 = new_d_Mul(dbgi, right.imag, right.imag, mode); + ir_node *const real_dividend = new_d_Add(dbgi, op1, op2, mode); + ir_node *const real_divisor = new_d_Add(dbgi, op5, op6, mode); + ir_node *const imag_dividend = new_d_Sub(dbgi, op3, op4, mode); + ir_node *const imag_divisor = new_d_Add(dbgi, op5, op6, mode); + return (complex_value) { + create_div(dbgi, real_dividend, real_divisor, mode), + create_div(dbgi, imag_dividend, imag_divisor, mode) + }; +} + +typedef complex_value (*new_complex_unop)(dbg_info *dbgi, complex_value value, + ir_mode *mode); + +static complex_value new_complex_increment(dbg_info *dbgi, complex_value value, + ir_mode *mode) +{ + ir_node *one = new_Const(get_mode_one(mode)); + return (complex_value) { + new_d_Add(dbgi, value.real, one, mode), + value.imag + }; +} + +static complex_value new_complex_decrement(dbg_info *dbgi, complex_value value, + ir_mode *mode) +{ + ir_node *one = new_Const(get_mode_one(mode)); + return (complex_value) { + new_d_Sub(dbgi, value.real, one, mode), + value.imag + }; +} + +static void set_complex_value_for_expression(dbg_info *dbgi, + const expression_t *expression, + complex_value value, + ir_node *addr) +{ + type_t *const type = skip_typeref(expression->base.type); + ir_mode *const mode = get_complex_mode_storage(type); + ir_node *const real = create_conv(dbgi, value.real, mode); + ir_node *const imag = create_conv(dbgi, value.imag, mode); + + if (expression->kind == EXPR_REFERENCE) { + const reference_expression_t *ref = &expression->reference; + + entity_t *entity = ref->entity; + assert(is_declaration(entity)); + assert(entity->declaration.kind != DECLARATION_KIND_UNKNOWN); + if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE || + entity->declaration.kind == DECLARATION_KIND_PARAMETER) { + set_value(entity->variable.v.value_number, real); + set_value(entity->variable.v.value_number+1, imag); + return; + } + } + + if (addr == NULL) + addr = expression_to_addr(expression); + assert(addr != NULL); + store_complex(dbgi, addr, type, value); +} + +static complex_value create_complex_assign_unop(const unary_expression_t *unop, + new_complex_unop constructor, + bool return_old) +{ + dbg_info *const dbgi = get_dbg_info(&unop->base.pos); + const expression_t *value_expr = unop->value; + ir_node *addr = expression_to_addr(value_expr); + complex_value value = get_complex_from_lvalue(value_expr, addr); + type_t *type = skip_typeref(unop->base.type); + ir_mode *mode = get_complex_mode_arithmetic(type); + value = complex_conv(dbgi, value, mode); + complex_value new_value = constructor(dbgi, value, mode); + set_complex_value_for_expression(dbgi, value_expr, new_value, addr); + return return_old ? value : new_value; +} + +static complex_value complex_negate_to_firm(const unary_expression_t *expr) +{ + complex_value cvalue = expression_to_complex(expr->value); + dbg_info *dbgi = get_dbg_info(&expr->base.pos); + ir_mode *mode = get_complex_mode_arithmetic(expr->base.type); + cvalue = complex_conv(dbgi, cvalue, mode); + return (complex_value) { + new_d_Minus(dbgi, cvalue.real, mode), + new_d_Minus(dbgi, cvalue.imag, mode) + }; +} + +static complex_value complex_complement_to_firm(const unary_expression_t *expr) +{ + complex_value cvalue = expression_to_complex(expr->value); + dbg_info *dbgi = get_dbg_info(&expr->base.pos); + ir_mode *mode = get_complex_mode_arithmetic(expr->base.type); + cvalue = complex_conv(dbgi, cvalue, mode); + return (complex_value) { + cvalue.real, + new_d_Minus(dbgi, cvalue.imag, mode) + }; +} + +static complex_value create_complex_binop(const binary_expression_t *binexpr, + new_complex_binop constructor) +{ + dbg_info *dbgi = get_dbg_info(&binexpr->base.pos); + ir_mode *mode = get_complex_mode_arithmetic(binexpr->base.type); + complex_value left = expression_to_complex(binexpr->left); + complex_value right = expression_to_complex(binexpr->right); + left = complex_conv(dbgi, left, mode); + right = complex_conv(dbgi, right, mode); + return constructor(dbgi, left, right, mode); +} + +static complex_value create_complex_assign_binop(const binary_expression_t *binexpr, + new_complex_binop constructor) +{ + dbg_info *dbgi = get_dbg_info(&binexpr->base.pos); + expression_t *lefte = binexpr->left; + expression_t *righte = binexpr->right; + ir_mode *mode = get_complex_mode_arithmetic(righte->base.type); + ir_node *addr = expression_to_addr(lefte); + complex_value left = get_complex_from_lvalue(lefte, addr); + complex_value right = expression_to_complex(righte); + left = complex_conv(dbgi, left, mode); + right = complex_conv(dbgi, right, mode); + complex_value new_value = constructor(dbgi, left, right, mode); + type_t *res_type = skip_typeref(binexpr->base.type); + set_complex_value_for_expression(dbgi, lefte, new_value, addr); + return complex_conv_to_storage(dbgi, new_value, res_type); +} + +static complex_value complex_call_to_firm(const call_expression_t *call) +{ + ir_node *result = call_expression_to_firm(call); + expression_t *function = call->function; + type_t *type = skip_typeref(function->base.type); + 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; + type_t *return_type = skip_typeref(function_type->return_type); + assert(is_type_complex(return_type)); + dbg_info *dbgi = get_dbg_info(&call->base.pos); + return complex_deref_address(dbgi, return_type, result, cons_floats); +} + +static void complex_equality_evaluation(const binary_expression_t *binexpr, + jump_target *const true_target, jump_target *const false_target, + ir_relation relation) +{ + jump_target extra_target; + init_jump_target(&extra_target, NULL); + + complex_value left = expression_to_complex(binexpr->left); + complex_value right = expression_to_complex(binexpr->right); + dbg_info *dbgi = get_dbg_info(&binexpr->base.pos); + ir_mode *mode = get_complex_mode_arithmetic(binexpr->left->base.type); + left = complex_conv(dbgi, left, mode); + right = complex_conv(dbgi, right, mode); + + ir_node *cmp_real = new_d_Cmp(dbgi, left.real, right.real, relation); + ir_node *cond = new_d_Cond(dbgi, cmp_real); + ir_node *true_proj = new_Proj(cond, mode_X, pn_Cond_true); + ir_node *false_proj = new_Proj(cond, mode_X, pn_Cond_false); + add_pred_to_jump_target(&extra_target, true_proj); + add_pred_to_jump_target(false_target, false_proj); + if (!enter_jump_target(&extra_target)) + return; + + ir_node *cmp_imag = new_d_Cmp(dbgi, left.imag, right.imag, relation); + ir_node *condi = new_d_Cond(dbgi, cmp_imag); + ir_node *true_proj_i = new_Proj(condi, mode_X, pn_Cond_true); + ir_node *false_proj_i = new_Proj(condi, mode_X, pn_Cond_false); + add_pred_to_jump_target(true_target, true_proj_i); + add_pred_to_jump_target(false_target, false_proj_i); + set_unreachable_now(); +} + +static complex_value complex_to_control_flow( + const expression_t *const expression, jump_target *const true_target, + jump_target *const false_target) +{ + jump_target extra_target; + init_jump_target(&extra_target, NULL); + complex_value value = expression_to_complex(expression); + if (is_Const(value.real) && is_Const(value.imag)) { + ir_tarval *tv_real = get_Const_tarval(value.real); + ir_tarval *tv_imag = get_Const_tarval(value.imag); + if (tarval_is_null(tv_real) && tarval_is_null(tv_imag)) { + jump_to_target(false_target); + } else { + jump_to_target(true_target); + } + set_unreachable_now(); + return value; + } + + dbg_info *const dbgi = get_dbg_info(&expression->base.pos); + type_t *const type = expression->base.type; + ir_mode *const mode = get_complex_mode_arithmetic(type); + value = complex_conv(dbgi, value, mode); + ir_node *const zero = new_Const(get_mode_null(mode)); + ir_node *const cmp_real = + new_d_Cmp(dbgi, value.real, zero, ir_relation_unordered_less_greater); + ir_node *const cond_real = new_d_Cond(dbgi, cmp_real); + ir_node *const true_real = new_Proj(cond_real, mode_X, pn_Cond_true); + ir_node *const false_real = new_Proj(cond_real, mode_X, pn_Cond_false); + add_pred_to_jump_target(true_target, true_real); + add_pred_to_jump_target(&extra_target, false_real); + if (!enter_jump_target(&extra_target)) + return value; + + ir_node *const cmp_imag = + new_d_Cmp(dbgi, value.imag, zero, ir_relation_unordered_less_greater); + ir_node *const cond_imag = new_d_Cond(dbgi, cmp_imag); + ir_node *const true_imag = new_Proj(cond_imag, mode_X, pn_Cond_true); + ir_node *const false_imag = new_Proj(cond_imag, mode_X, pn_Cond_false); + add_pred_to_jump_target(true_target, true_imag); + add_pred_to_jump_target(false_target, false_imag); + set_unreachable_now(); + return value; +} + +static complex_value complex_conditional_to_firm( + const conditional_expression_t *const expression) +{ + jump_target true_target; + jump_target false_target; + init_jump_target(&true_target, NULL); + init_jump_target(&false_target, NULL); + complex_value cond_val; + memset(&cond_val, 0, sizeof(cond_val)); + if (expression->true_expression == NULL) { + assert(is_type_complex(skip_typeref(expression->condition->base.type))); + cond_val = complex_to_control_flow(expression->condition, + &true_target, &false_target); + } else { + expression_to_control_flow(expression->condition, &true_target, &false_target); + } + + complex_value val; + memset(&val, 0, sizeof(val)); + jump_target exit_target; + init_jump_target(&exit_target, NULL); + type_t *const type = skip_typeref(expression->base.type); + ir_mode *const mode = get_complex_mode_arithmetic(type); + dbg_info *const dbgi = get_dbg_info(&expression->base.pos); + + if (enter_jump_target(&true_target)) { + if (expression->true_expression) { + val = expression_to_complex(expression->true_expression); + } else { + assert(cond_val.real != NULL); + val = cond_val; + } + val = complex_conv(dbgi, val, mode); + jump_to_target(&exit_target); + } + + if (enter_jump_target(&false_target)) { + complex_value false_val + = expression_to_complex(expression->false_expression); + false_val = complex_conv(dbgi, false_val, mode); + jump_to_target(&exit_target); + if (val.real != NULL) { + ir_node *const inr[] = { val.real, false_val.real }; + ir_node *const ini[] = { val.imag, false_val.imag }; + ir_node *const block = exit_target.block; + val.real = new_rd_Phi(dbgi, block, lengthof(inr), inr, mode); + val.imag = new_rd_Phi(dbgi, block, lengthof(ini), ini, mode); + } else { + val = false_val; + } + } + + if (!enter_jump_target(&exit_target)) { + set_cur_block(new_Block(0, NULL)); + assert(!is_type_void(type)); + val.real = val.imag = new_Bad(mode); + } + return val; +} + +static void create_local_declarations(entity_t*); + +static complex_value compound_statement_to_firm_complex( + const compound_statement_t *compound) +{ + create_local_declarations(compound->scope.entities); + + complex_value result = { NULL, NULL }; + statement_t *statement = compound->statements; + statement_t *next; + for ( ; statement != NULL; statement = next) { + next = statement->base.next; + /* last statement is the return value */ + if (next == NULL) { + /* it must be an expression, otherwise we wouldn't be in the + * complex variant of compound_statement_to_firm */ + if (statement->kind != STATEMENT_EXPRESSION) + panic("last member of complex statement expression not an expression statement"); + expression_t *expression = statement->expression.expression; + assert(is_type_complex(skip_typeref(expression->base.type))); + result = expression_to_complex(expression); + } else { + statement_to_firm(statement); + } + } + + return result; +} + +static complex_value complex_assign_to_firm(const binary_expression_t *expr) +{ + dbg_info *const dbgi = get_dbg_info(&expr->base.pos); + complex_value const value = expression_to_complex(expr->right); + ir_node *const addr = expression_to_addr(expr->left); + set_complex_value_for_expression(dbgi, expr->left, value, addr); + return value; +} + +static complex_value complex_statement_expression_to_firm( + const statement_expression_t *const expr) +{ + const statement_t *const statement = expr->statement; + assert(statement->kind == STATEMENT_COMPOUND); + + return compound_statement_to_firm_complex(&statement->compound); +} + +static complex_value expression_to_complex(const expression_t *expression) +{ + switch (expression->kind) { + case EXPR_REFERENCE: + return complex_reference_to_firm(&expression->reference); + case EXPR_SELECT: + return complex_select_to_firm(&expression->select); + case EXPR_ARRAY_ACCESS: + return complex_array_access_to_firm(&expression->array_access); + case EXPR_UNARY_CAST: + return complex_cast_to_firm(&expression->unary); + case EXPR_BINARY_COMMA: + evaluate_expression_discard_result(expression->binary.left); + return expression_to_complex(expression->binary.right); + case EXPR_BINARY_ADD: + return create_complex_binop(&expression->binary, new_complex_add); + case EXPR_BINARY_ADD_ASSIGN: + return create_complex_assign_binop(&expression->binary, new_complex_add); + case EXPR_BINARY_SUB: + return create_complex_binop(&expression->binary, new_complex_sub); + case EXPR_BINARY_SUB_ASSIGN: + return create_complex_assign_binop(&expression->binary, new_complex_sub); + case EXPR_BINARY_MUL: + return create_complex_binop(&expression->binary, new_complex_mul); + case EXPR_BINARY_MUL_ASSIGN: + return create_complex_assign_binop(&expression->binary, new_complex_mul); + case EXPR_BINARY_DIV: + return create_complex_binop(&expression->binary, new_complex_div); + case EXPR_BINARY_DIV_ASSIGN: + return create_complex_assign_binop(&expression->binary, new_complex_div); + case EXPR_UNARY_PLUS: + return expression_to_complex(expression->unary.value); + case EXPR_UNARY_PREFIX_INCREMENT: + return create_complex_assign_unop(&expression->unary, + new_complex_increment, false); + case EXPR_UNARY_PREFIX_DECREMENT: + return create_complex_assign_unop(&expression->unary, + new_complex_decrement, false); + case EXPR_UNARY_POSTFIX_INCREMENT: + return create_complex_assign_unop(&expression->unary, + new_complex_increment, true); + case EXPR_UNARY_POSTFIX_DECREMENT: + return create_complex_assign_unop(&expression->unary, + new_complex_decrement, true); + case EXPR_UNARY_NEGATE: + return complex_negate_to_firm(&expression->unary); + case EXPR_UNARY_COMPLEMENT: + return complex_complement_to_firm(&expression->unary); + case EXPR_BINARY_ASSIGN: + return complex_assign_to_firm(&expression->binary); + case EXPR_LITERAL_CASES: + return complex_literal_to_firm(&expression->literal); case EXPR_CALL: - if (is_builtin_expect(expression)) { - expression_t *argument = expression->call.arguments->expression; - return produces_mode_b(argument); - } - return false; - case EXPR_BINARY_COMMA: - return produces_mode_b(expression->binary.right); - + return complex_call_to_firm(&expression->call); + case EXPR_CONDITIONAL: + return complex_conditional_to_firm(&expression->conditional); + case EXPR_STATEMENT: + return complex_statement_expression_to_firm(&expression->statement); default: - return false; - } -} - -static ir_node *expression_to_firm(const expression_t *expression) -{ - if (!produces_mode_b(expression)) { - ir_node *res = _expression_to_firm(expression); - assert(res == NULL || get_irn_mode(res) != mode_b); - return res; - } - - if (is_constant_expression(expression) == EXPR_CLASS_CONSTANT) { - return new_Const(fold_constant_to_tarval(expression)); + panic("unexpected complex expression"); } - - /* we have to produce a 0/1 from the mode_b expression */ - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - ir_mode *mode = get_ir_mode_arithmetic(expression->base.type); - return produce_condition_result(expression, mode, dbgi); } -/** - * create a short-circuit expression evaluation that tries to construct - * efficient control flow structures for &&, || and ! expressions - */ -static ir_node *create_condition_evaluation(const expression_t *expression, - ir_node *true_block, - ir_node *false_block) -{ - switch(expression->kind) { - case EXPR_UNARY_NOT: { - const unary_expression_t *unary_expression = &expression->unary; - create_condition_evaluation(unary_expression->value, false_block, - true_block); - return NULL; - } - case EXPR_BINARY_LOGICAL_AND: { - const binary_expression_t *binary_expression = &expression->binary; - - ir_node *extra_block = new_immBlock(); - 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 NULL; - } - case EXPR_BINARY_LOGICAL_OR: { - const binary_expression_t *binary_expression = &expression->binary; - - ir_node *extra_block = new_immBlock(); - 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 NULL; - } - default: - break; - } - - dbg_info *dbgi = get_dbg_info(&expression->base.source_position); - ir_node *cond_expr = _expression_to_firm(expression); - ir_node *condition = create_conv(dbgi, cond_expr, mode_b); - ir_node *cond = new_d_Cond(dbgi, condition); - ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true); - ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false); - - /* set branch prediction info based on __builtin_expect */ - if (is_builtin_expect(expression) && is_Cond(cond)) { - call_argument_t *argument = expression->call.arguments->next; - if (is_constant_expression(argument->expression) == EXPR_CLASS_CONSTANT) { - bool const cnst = fold_constant_to_bool(argument->expression); - cond_jmp_predicate const pred = cnst ? COND_JMP_PRED_TRUE : COND_JMP_PRED_FALSE; - set_Cond_jmp_pred(cond, pred); - } - } - - add_immBlock_pred(true_block, true_proj); - add_immBlock_pred(false_block, false_proj); - set_unreachable_now(); - return cond_expr; -} static void create_variable_entity(entity_t *variable, declaration_kind_t declaration_kind, @@ -3574,7 +4050,7 @@ static void create_variable_entity(entity_t *variable, ident *const id = new_id_from_str(variable->base.symbol->string); ir_type *const irtype = get_ir_type(type); - dbg_info *const dbgi = get_dbg_info(&variable->base.source_position); + dbg_info *const dbgi = get_dbg_info(&variable->base.pos); ir_entity *const irentity = new_d_entity(parent_type, id, irtype, dbgi); unsigned alignment = variable->declaration.alignment; @@ -3749,13 +4225,8 @@ static void walk_designator(type_path_t *path, const designator_t *designator) compound_t *compound = type->compound.compound; entity_t *iter = compound->members.entities; - for ( ; iter != NULL; iter = iter->base.next, ++index) { - if (iter->base.symbol == symbol) { - assert(iter->kind == ENTITY_COMPOUND_MEMBER); - break; - } - } - assert(iter != NULL); + for (; iter->base.symbol != symbol; iter = iter->base.next, ++index) {} + assert(iter->kind == ENTITY_COMPOUND_MEMBER); /* revert previous initialisations of other union elements */ if (type->kind == TYPE_COMPOUND_UNION) { @@ -3784,17 +4255,10 @@ static void walk_designator(type_path_t *path, const designator_t *designator) orig_type = iter->declaration.type; } else { expression_t *array_index = designator->array_index; - assert(designator->array_index != NULL); assert(is_type_array(type)); long index = fold_constant_to_int(array_index); - assert(index >= 0); -#ifndef NDEBUG - if (type->array.size_constant) { - long array_size = type->array.size; - assert(index < array_size); - } -#endif + assert(0 <= index && (!type->array.size_constant || (size_t)index < type->array.size)); top->type = orig_type; top->index = (size_t) index; @@ -3814,7 +4278,7 @@ static void advance_current_object(type_path_t *path) { if (path->invalid) { /* TODO: handle this... */ - panic("invalid initializer in ast2firm (excessive elements)"); + panic("invalid initializer (excessive elements)"); } type_path_entry_t *top = get_type_path_top(path); @@ -3859,29 +4323,44 @@ static void advance_current_object(type_path_t *path) static ir_initializer_t *create_ir_initializer_value( const initializer_value_t *initializer) { - if (is_type_compound(initializer->value->base.type)) { - panic("initializer creation for compounds not implemented yet"); - } - type_t *type = initializer->value->base.type; expression_t *expr = initializer->value; - ir_node *value = expression_to_firm(expr); - ir_mode *mode = get_ir_mode_storage(type); - value = create_conv(NULL, value, mode); + type_t *type = skip_typeref(expr->base.type); + + if (is_type_compound(type)) { + if (expr->kind == EXPR_UNARY_CAST) { + expr = expr->unary.value; + type = skip_typeref(expr->base.type); + } + /* must be a compound literal... */ + if (expr->kind == EXPR_COMPOUND_LITERAL) { + return create_ir_initializer(expr->compound_literal.initializer, + type); + } + } else if (is_type_complex(type)) { + complex_value const value = expression_to_complex(expr); + ir_mode *const mode = get_complex_mode_storage(type); + ir_node *const real = create_conv(NULL, value.real, mode); + ir_node *const imag = create_conv(NULL, value.imag, mode); + ir_initializer_t *const res = create_initializer_compound(2); + ir_initializer_t *const init_real = create_initializer_const(real); + ir_initializer_t *const init_imag = create_initializer_const(imag); + set_initializer_compound_value(res, 0, init_real); + set_initializer_compound_value(res, 1, init_imag); + return res; + } + + ir_node *value = expression_to_value(expr); + value = conv_to_storage_type(NULL, value, type); return create_initializer_const(value); } -/** test wether type can be initialized by a string constant */ +/** Tests whether type can be initialized by a string constant */ static bool is_string_type(type_t *type) { - type_t *inner; - if (is_type_pointer(type)) { - inner = skip_typeref(type->pointer.points_to); - } else if(is_type_array(type)) { - inner = skip_typeref(type->array.element_type); - } else { + if (!is_type_array(type)) return false; - } + type_t *const inner = skip_typeref(type->array.element_type); return is_type_integer(inner); } @@ -3904,18 +4383,18 @@ static ir_initializer_t *create_ir_initializer_list( } if (sub_initializer->kind == INITIALIZER_VALUE) { - /* we might have to descend into types until we're at a scalar - * type */ - while(true) { + const expression_t *expr = sub_initializer->value.value; + const type_t *expr_type = skip_typeref(expr->base.type); + /* we might have to descend into types until the types match */ + 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)) + if (types_compatible(top_type, expr_type)) break; descend_into_subtype(&path); } - } else if (sub_initializer->kind == INITIALIZER_STRING - || sub_initializer->kind == INITIALIZER_WIDE_STRING) { + } else if (sub_initializer->kind == INITIALIZER_STRING) { /* we might have to descend into types until we're at a scalar * type */ while (true) { @@ -3948,70 +4427,50 @@ static ir_initializer_t *create_ir_initializer_list( return result; } -static ir_initializer_t *create_ir_initializer_string( - const initializer_string_t *initializer, type_t *type) +static ir_initializer_t *create_ir_initializer_string(initializer_t const *const init, type_t *type) { type = skip_typeref(type); - size_t string_len = initializer->string.size; - assert(type->kind == TYPE_ARRAY); - assert(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_ir_mode_storage(type->array.element_type); - - for (size_t i = 0; i < len; ++i) { - char c = 0; - if (i < string_len) - c = string[i]; - - ir_tarval *tv = new_tarval_from_long(c, mode); - ir_initializer_t *char_initializer = create_initializer_tarval(tv); - - set_initializer_compound_value(irinitializer, i, char_initializer); - } - - return irinitializer; -} - -static ir_initializer_t *create_ir_initializer_wide_string( - const initializer_wide_string_t *initializer, type_t *type) -{ assert(type->kind == TYPE_ARRAY); assert(type->array.size_constant); - size_t len = type->array.size; - size_t string_len = wstrlen(&initializer->string); - ir_initializer_t *irinitializer = create_initializer_compound(len); - - const char *p = initializer->string.begin; - ir_mode *mode = get_type_mode(ir_type_wchar_t); - - for (size_t i = 0; i < len; ++i) { - utf32 c = 0; - if (i < string_len) { - c = read_utf8_char(&p); + string_literal_expression_t const *const str = get_init_string(init); + size_t const str_len = str->value.size; + size_t const arr_len = type->array.size; + ir_initializer_t *const irinit = create_initializer_compound(arr_len); + ir_mode *const mode = get_ir_mode_storage(type->array.element_type); + char const * p = str->value.begin; + switch (str->value.encoding) { + case STRING_ENCODING_CHAR: + case STRING_ENCODING_UTF8: + for (size_t i = 0; i != arr_len; ++i) { + char const c = i < str_len ? *p++ : 0; + ir_tarval *const tv = new_tarval_from_long(c, mode); + ir_initializer_t *const tvinit = create_initializer_tarval(tv); + set_initializer_compound_value(irinit, i, tvinit); } - ir_tarval *tv = new_tarval_from_long(c, mode); - ir_initializer_t *char_initializer = create_initializer_tarval(tv); + break; - set_initializer_compound_value(irinitializer, i, char_initializer); + case STRING_ENCODING_CHAR16: + case STRING_ENCODING_CHAR32: + case STRING_ENCODING_WIDE: + for (size_t i = 0; i != arr_len; ++i) { + utf32 const c = i < str_len ? read_utf8_char(&p) : 0; + ir_tarval *const tv = new_tarval_from_long(c, mode); + ir_initializer_t *const tvinit = create_initializer_tarval(tv); + set_initializer_compound_value(irinit, i, tvinit); + } + break; } - return irinitializer; + return irinit; } static ir_initializer_t *create_ir_initializer( const initializer_t *initializer, type_t *type) { - switch(initializer->kind) { + switch (initializer->kind) { case INITIALIZER_STRING: - return create_ir_initializer_string(&initializer->string, type); - - case INITIALIZER_WIDE_STRING: - return create_ir_initializer_wide_string(&initializer->wide_string, - type); + return create_ir_initializer_string(initializer, type); case INITIALIZER_LIST: return create_ir_initializer_list(&initializer->list, type); @@ -4020,7 +4479,7 @@ static ir_initializer_t *create_ir_initializer( return create_ir_initializer_value(&initializer->value); case INITIALIZER_DESIGNATOR: - panic("unexpected designator initializer found"); + panic("unexpected designator initializer"); } panic("unknown initializer"); } @@ -4084,7 +4543,7 @@ static void create_dynamic_null_initializer(ir_entity *entity, dbg_info *dbgi, static void create_dynamic_initializer_sub(ir_initializer_t *initializer, ir_entity *entity, ir_type *type, dbg_info *dbgi, ir_node *base_addr) { - switch(get_initializer_kind(initializer)) { + switch (get_initializer_kind(initializer)) { case IR_INITIALIZER_NULL: create_dynamic_null_initializer(entity, dbgi, base_addr); return; @@ -4099,11 +4558,17 @@ static void create_dynamic_initializer_sub(ir_initializer_t *initializer, return; } - assert(get_type_mode(type) == get_irn_mode(node)); - ir_node *mem = get_store(); - ir_node *store = new_d_Store(dbgi, mem, base_addr, node, cons_none); - ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M); - set_store(proj_m); + ir_node *mem = get_store(); + ir_node *new_mem; + if (is_compound_type(ent_type)) { + ir_node *copyb = new_d_CopyB(dbgi, mem, base_addr, node, ent_type); + new_mem = new_Proj(copyb, mode_M, pn_CopyB_M); + } else { + assert(get_type_mode(type) == get_irn_mode(node)); + ir_node *store = new_d_Store(dbgi, mem, base_addr, node, cons_none); + new_mem = new_Proj(store, mode_M, pn_Store_M); + } + set_store(new_mem); return; } case IR_INITIALIZER_TARVAL: { @@ -4169,7 +4634,7 @@ static void create_dynamic_initializer_sub(ir_initializer_t *initializer, } } - panic("invalid IR_INITIALIZER found"); + panic("invalid ir_initializer"); } static void create_dynamic_initializer(ir_initializer_t *initializer, @@ -4193,7 +4658,7 @@ static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi, if (initializer->kind == INITIALIZER_VALUE) { initializer_value_t *initializer_value = &initializer->value; - ir_node *value = expression_to_firm(initializer_value->value); + ir_node *value = expression_to_value(initializer_value->value); type = skip_typeref(type); assign_value(dbgi, addr, type, value); return; @@ -4222,7 +4687,7 @@ static void create_initializer_local_variable_entity(entity_t *entity) { assert(entity->kind == ENTITY_VARIABLE); initializer_t *initializer = entity->variable.initializer; - dbg_info *dbgi = get_dbg_info(&entity->base.source_position); + dbg_info *dbgi = get_dbg_info(&entity->base.pos); ir_entity *irentity = entity->variable.v.entity; type_t *type = entity->declaration.type; @@ -4250,22 +4715,40 @@ static void create_variable_initializer(entity_t *entity) expression_t * value = initializer->value.value; type_t *const init_type = skip_typeref(value->base.type); - if (!is_type_scalar(init_type)) { - /* skip convs */ - while (value->kind == EXPR_UNARY_CAST) - value = value->unary.value; - + if (is_type_complex(init_type)) { + complex_value nodes = expression_to_complex(value); + dbg_info *dbgi = get_dbg_info(&entity->base.pos); + ir_mode *mode = get_complex_mode_storage(init_type); + ir_node *real = create_conv(dbgi, nodes.real, mode); + ir_node *imag = create_conv(dbgi, nodes.imag, mode); + if (declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) { + set_value(entity->variable.v.value_number, real); + set_value(entity->variable.v.value_number+1, imag); + } else { + assert(declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE); + ir_entity *irentity = entity->variable.v.entity; + if (tq & TYPE_QUALIFIER_CONST + && get_entity_owner(irentity) != get_tls_type()) { + add_entity_linkage(irentity, IR_LINKAGE_CONSTANT); + } + ir_initializer_t *initializer = create_initializer_compound(2); + ir_initializer_t *reali = create_initializer_const(real); + set_initializer_compound_value(initializer, 0, reali); + ir_initializer_t *imagi = create_initializer_const(imag); + set_initializer_compound_value(initializer, 1, imagi); + set_entity_initializer(irentity, initializer); + } + return; + } else if (!is_type_scalar(init_type)) { if (value->kind != EXPR_COMPOUND_LITERAL) panic("expected non-scalar initializer to be a compound literal"); initializer = value->compound_literal.initializer; goto have_initializer; } - ir_node * node = expression_to_firm(value); - dbg_info *const dbgi = get_dbg_info(&entity->base.source_position); - ir_mode *const mode = get_ir_mode_storage(init_type); - node = create_conv(dbgi, node, mode); - node = do_strict_conv(dbgi, node); + ir_node * node = expression_to_value(value); + dbg_info *const dbgi = get_dbg_info(&entity->base.pos); + node = conv_to_storage_type(dbgi, node, init_type); if (declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) { set_value(entity->variable.v.value_number, node); @@ -4314,7 +4797,7 @@ static void allocate_variable_length_array(entity_t *entity) assert(entity->variable.initializer == NULL); assert(currently_reachable()); - dbg_info *dbgi = get_dbg_info(&entity->base.source_position); + dbg_info *dbgi = get_dbg_info(&entity->base.pos); type_t *type = entity->declaration.type; ir_type *el_type = get_ir_type(type->array.element_type); @@ -4332,6 +4815,15 @@ static void allocate_variable_length_array(entity_t *entity) entity->variable.v.vla_base = addr; } +static bool var_needs_entity(variable_t const *const var) +{ + if (var->address_taken) + return true; + type_t *const type = skip_typeref(var->base.type); + return (!is_type_scalar(type) && !is_type_complex(type)) + || type->base.qualifiers & TYPE_QUALIFIER_VOLATILE; +} + /** * Creates a Firm local variable from a declaration. */ @@ -4340,31 +4832,25 @@ static void create_local_variable(entity_t *entity) assert(entity->kind == ENTITY_VARIABLE); assert(entity->declaration.kind == DECLARATION_KIND_UNKNOWN); - bool needs_entity = entity->variable.address_taken; - type_t *type = skip_typeref(entity->declaration.type); + if (!var_needs_entity(&entity->variable)) { + entity->declaration.kind = DECLARATION_KIND_LOCAL_VARIABLE; + entity->variable.v.value_number = next_value_number_function; + set_irg_loc_description(current_ir_graph, next_value_number_function, entity); + ++next_value_number_function; + if (is_type_complex(skip_typeref(entity->declaration.type))) + ++next_value_number_function; + return; + } /* is it a variable length array? */ + type_t *const type = skip_typeref(entity->declaration.type); if (is_type_array(type) && !type->array.size_constant) { create_variable_length_array(entity); return; - } else if (is_type_array(type) || is_type_compound(type)) { - needs_entity = true; - } else if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) { - needs_entity = true; } - if (needs_entity) { - ir_type *frame_type = get_irg_frame_type(current_ir_graph); - create_variable_entity(entity, - DECLARATION_KIND_LOCAL_VARIABLE_ENTITY, - frame_type); - } else { - entity->declaration.kind = DECLARATION_KIND_LOCAL_VARIABLE; - entity->variable.v.value_number = next_value_number_function; - set_irg_loc_description(current_ir_graph, next_value_number_function, - entity); - ++next_value_number_function; - } + ir_type *const frame_type = get_irg_frame_type(current_ir_graph); + create_variable_entity(entity, DECLARATION_KIND_LOCAL_VARIABLE_ENTITY, frame_type); } static void create_local_static_variable(entity_t *entity) @@ -4376,7 +4862,7 @@ static void create_local_static_variable(entity_t *entity) ir_type *const var_type = entity->variable.thread_local ? get_tls_type() : get_glob_type(); ir_type *const irtype = get_ir_type(type); - dbg_info *const dbgi = get_dbg_info(&entity->base.source_position); + dbg_info *const dbgi = get_dbg_info(&entity->base.pos); size_t l = strlen(entity->base.symbol->string); char buf[l + sizeof(".%u")]; @@ -4399,41 +4885,47 @@ static void create_local_static_variable(entity_t *entity) set_entity_initializer(irentity, null_init); } - ir_graph *const old_current_ir_graph = current_ir_graph; - current_ir_graph = get_const_code_irg(); - + PUSH_IRG(get_const_code_irg()); create_variable_initializer(entity); - - assert(current_ir_graph == get_const_code_irg()); - current_ir_graph = old_current_ir_graph; + POP_IRG(); } - - static ir_node *return_statement_to_firm(return_statement_t *statement) { if (!currently_reachable()) return NULL; - dbg_info *const dbgi = get_dbg_info(&statement->base.source_position); + dbg_info *const dbgi = get_dbg_info(&statement->base.pos); type_t *const type = skip_typeref(current_function_entity->declaration.type->function.return_type); - ir_node * res = statement->value ? expression_to_firm(statement->value) : NULL; + ir_node *in[1]; int in_len; - if (!is_type_void(type)) { - ir_mode *const mode = get_ir_mode_storage(type); - if (res) { - res = create_conv(dbgi, res, mode); - res = do_strict_conv(dbgi, res); + if (is_type_void(type)) { + /* just create the side effects, don't return anything */ + if (statement->value) + evaluate_expression_discard_result(statement->value); + in[0] = NULL; + in_len = 0; + } else if (is_type_complex(type)) { + if (statement->value) { + complex_value value = expression_to_complex(statement->value); + in[0] = complex_to_memory(dbgi, type, value); } else { - res = new_Unknown(mode); + in[0] = new_Unknown(mode_P_data); } in_len = 1; } else { - in_len = 0; + ir_mode *const mode = get_ir_mode_storage(type); + if (statement->value) { + ir_node *value = expression_to_value(statement->value); + value = conv_to_storage_type(dbgi, value, type); + in[0] = create_conv(dbgi, value, mode); + } else { + in[0] = new_Unknown(mode); + } + in_len = 1; } - ir_node *const in[1] = { res }; ir_node *const store = get_store(); ir_node *const ret = new_d_Return(dbgi, store, in_len, in); @@ -4449,11 +4941,16 @@ static ir_node *expression_statement_to_firm(expression_statement_t *statement) if (!currently_reachable()) return NULL; - return expression_to_firm(statement->expression); + expression_t *expression = statement->expression; + type_t *type = skip_typeref(expression->base.type); + if (is_type_complex(type)) { + expression_to_complex(expression); + return NULL; + } else { + return expression_to_value(statement->expression); + } } -static void create_local_declarations(entity_t*); - static ir_node *compound_statement_to_firm(compound_statement_t *compound) { create_local_declarations(compound->scope.entities); @@ -4529,7 +5026,7 @@ static void create_local_declaration(entity_t *entity) return; case STORAGE_CLASS_EXTERN: if (entity->kind == ENTITY_FUNCTION) { - assert(entity->function.statement == NULL); + assert(entity->function.body == NULL); (void)get_function_entity(entity, NULL); } else { create_global_variable(entity); @@ -4540,7 +5037,7 @@ static void create_local_declaration(entity_t *entity) case STORAGE_CLASS_AUTO: case STORAGE_CLASS_REGISTER: if (entity->kind == ENTITY_FUNCTION) { - if (entity->function.statement != NULL) { + if (entity->function.body != NULL) { ir_type *owner = get_irg_frame_type(current_ir_graph); (void)get_function_entity(entity, owner); entity->declaration.kind = DECLARATION_KIND_INNER_FUNCTION; @@ -4555,7 +5052,7 @@ static void create_local_declaration(entity_t *entity) case STORAGE_CLASS_TYPEDEF: break; } - panic("invalid storage class found"); + panic("invalid storage class"); } static void create_local_declarations(entity_t *e) @@ -4632,162 +5129,62 @@ static ir_node *if_statement_to_firm(if_statement_t *statement) create_local_declarations(statement->scope.entities); /* Create the condition. */ - ir_node *true_block = NULL; - ir_node *false_block = NULL; - if (currently_reachable()) { - true_block = new_immBlock(); - false_block = new_immBlock(); - create_condition_evaluation(statement->condition, true_block, false_block); - mature_immBlock(true_block); - mature_immBlock(false_block); - } + jump_target true_target; + jump_target false_target; + init_jump_target(&true_target, NULL); + init_jump_target(&false_target, NULL); + if (currently_reachable()) + expression_to_control_flow(statement->condition, &true_target, &false_target); + + jump_target exit_target; + init_jump_target(&exit_target, NULL); /* Create the true statement. */ - set_cur_block(true_block); + enter_jump_target(&true_target); statement_to_firm(statement->true_statement); - ir_node *fallthrough_block = get_cur_block(); + jump_to_target(&exit_target); /* Create the false statement. */ - set_cur_block(false_block); - if (statement->false_statement != NULL) { + enter_jump_target(&false_target); + if (statement->false_statement) statement_to_firm(statement->false_statement); - } - - /* Handle the block after the if-statement. Minor simplification and - * optimisation: Reuse the false/true block as fallthrough block, if the - * true/false statement does not pass control to the fallthrough block, e.g. - * in the typical if (x) return; pattern. */ - if (fallthrough_block) { - if (currently_reachable()) { - ir_node *const t_jump = new_r_Jmp(fallthrough_block); - ir_node *const f_jump = new_Jmp(); - ir_node *const in[] = { t_jump, f_jump }; - fallthrough_block = new_Block(2, in); - } - set_cur_block(fallthrough_block); - } + jump_to_target(&exit_target); + enter_jump_target(&exit_target); return NULL; } -/** - * Add an unconditional jump to the target block. If the source block is not - * reachable, then a Bad predecessor is created to prevent Phi-less unreachable - * loops. This is necessary if the jump potentially enters a loop. - */ -static void jump_to(ir_node *const target_block) -{ - ir_node *const pred = currently_reachable() ? new_Jmp() : new_Bad(mode_X); - add_immBlock_pred(target_block, pred); -} - -/** - * Add an unconditional jump to the target block, if the current block is - * reachable and do nothing otherwise. This is only valid if the jump does not - * enter a loop (a back edge is ok). - */ -static void jump_if_reachable(ir_node *const target_block) -{ - if (currently_reachable()) - add_immBlock_pred(target_block, new_Jmp()); -} - -static ir_node *while_statement_to_firm(while_statement_t *statement) +static ir_node *do_while_statement_to_firm(do_while_statement_t *statement) { create_local_declarations(statement->scope.entities); - /* Create the header block */ - ir_node *const header_block = new_immBlock(); - jump_to(header_block); + PUSH_BREAK(NULL); + PUSH_CONTINUE(NULL); - /* Create the condition. */ - ir_node * body_block; - ir_node * false_block; expression_t *const cond = statement->condition; - if (is_constant_expression(cond) == EXPR_CLASS_CONSTANT && - fold_constant_to_bool(cond)) { - /* Shortcut for while (true). */ - body_block = header_block; - false_block = NULL; - - keep_alive(header_block); - keep_all_memory(header_block); + /* Avoid an explicit body block in case of do ... while (0);. */ + if (is_constant_expression(cond) == EXPR_CLASS_CONSTANT && !fold_constant_to_bool(cond)) { + /* do ... while (0);. */ + statement_to_firm(statement->body); + jump_to_target(&continue_target); + enter_jump_target(&continue_target); + jump_to_target(&break_target); } else { - body_block = new_immBlock(); - false_block = new_immBlock(); - - set_cur_block(header_block); - create_condition_evaluation(cond, body_block, false_block); - mature_immBlock(body_block); - } - - ir_node *const old_continue_label = continue_label; - ir_node *const old_break_label = break_label; - continue_label = header_block; - break_label = false_block; - - /* Create the loop body. */ - set_cur_block(body_block); - statement_to_firm(statement->body); - jump_if_reachable(header_block); - - mature_immBlock(header_block); - assert(false_block == NULL || false_block == break_label); - false_block = break_label; - if (false_block != NULL) { - mature_immBlock(false_block); - } - set_cur_block(false_block); - - assert(continue_label == header_block); - continue_label = old_continue_label; - break_label = old_break_label; - return NULL; -} - -static ir_node *get_break_label(void) -{ - if (break_label == NULL) { - break_label = new_immBlock(); - } - return break_label; -} - -static ir_node *do_while_statement_to_firm(do_while_statement_t *statement) -{ - create_local_declarations(statement->scope.entities); - - /* create the header block */ - ir_node *header_block = new_immBlock(); - - /* the loop body */ - ir_node *body_block = new_immBlock(); - jump_to(body_block); - - ir_node *old_continue_label = continue_label; - ir_node *old_break_label = break_label; - continue_label = header_block; - break_label = NULL; - - set_cur_block(body_block); - statement_to_firm(statement->body); - ir_node *const false_block = get_break_label(); - - assert(continue_label == header_block); - continue_label = old_continue_label; - break_label = old_break_label; - - jump_if_reachable(header_block); - - /* create the condition */ - mature_immBlock(header_block); - set_cur_block(header_block); - - create_condition_evaluation(statement->condition, body_block, false_block); - mature_immBlock(body_block); - mature_immBlock(false_block); - - set_cur_block(false_block); + jump_target body_target; + init_jump_target(&body_target, NULL); + jump_to_target(&body_target); + enter_immature_jump_target(&body_target); + keep_loop(); + statement_to_firm(statement->body); + jump_to_target(&continue_target); + if (enter_jump_target(&continue_target)) + expression_to_control_flow(statement->condition, &body_target, &break_target); + enter_jump_target(&body_target); + } + enter_jump_target(&break_target); + + POP_CONTINUE(); + POP_BREAK(); return NULL; } @@ -4805,82 +5202,45 @@ static ir_node *for_statement_to_firm(for_statement_t *statement) } if (statement->initialisation != NULL) { - expression_to_firm(statement->initialisation); + expression_to_value(statement->initialisation); } } /* Create the header block */ - ir_node *const header_block = new_immBlock(); - jump_to(header_block); - - /* Create the condition. */ - ir_node *body_block; - ir_node *false_block; - if (statement->condition != NULL) { - body_block = new_immBlock(); - false_block = new_immBlock(); - - set_cur_block(header_block); - create_condition_evaluation(statement->condition, body_block, false_block); - mature_immBlock(body_block); - } else { - /* for-ever. */ - body_block = header_block; - false_block = NULL; + jump_target header_target; + init_jump_target(&header_target, NULL); + jump_to_target(&header_target); + enter_immature_jump_target(&header_target); + keep_loop(); - keep_alive(header_block); - keep_all_memory(header_block); - } + expression_t *const step = statement->step; + PUSH_BREAK(NULL); + PUSH_CONTINUE(step ? NULL : header_target.block); - /* Create the step block, if necessary. */ - ir_node * step_block = header_block; - expression_t *const step = statement->step; - if (step != NULL) { - step_block = new_immBlock(); + /* Create the condition. */ + expression_t *const cond = statement->condition; + if (cond && (is_constant_expression(cond) != EXPR_CLASS_CONSTANT || !fold_constant_to_bool(cond))) { + jump_target body_target; + init_jump_target(&body_target, NULL); + expression_to_control_flow(cond, &body_target, &break_target); + enter_jump_target(&body_target); } - ir_node *const old_continue_label = continue_label; - ir_node *const old_break_label = break_label; - continue_label = step_block; - break_label = false_block; - /* Create the loop body. */ - set_cur_block(body_block); statement_to_firm(statement->body); - jump_if_reachable(step_block); + jump_to_target(&continue_target); /* Create the step code. */ - if (step != NULL) { - mature_immBlock(step_block); - set_cur_block(step_block); - expression_to_firm(step); - jump_if_reachable(header_block); - } - - mature_immBlock(header_block); - assert(false_block == NULL || false_block == break_label); - false_block = break_label; - if (false_block != NULL) { - mature_immBlock(false_block); + if (step && enter_jump_target(&continue_target)) { + expression_to_value(step); + jump_to_target(&header_target); } - set_cur_block(false_block); - assert(continue_label == step_block); - continue_label = old_continue_label; - break_label = old_break_label; - return NULL; -} - -static ir_node *create_jump_statement(const statement_t *statement, ir_node *target_block) -{ - if (!currently_reachable()) - return NULL; + enter_jump_target(&header_target); + enter_jump_target(&break_target); - dbg_info *dbgi = get_dbg_info(&statement->base.source_position); - ir_node *jump = new_d_Jmp(dbgi); - add_immBlock_pred(target_block, jump); - - set_unreachable_now(); + POP_CONTINUE(); + POP_BREAK(); return NULL; } @@ -4908,11 +5268,9 @@ static ir_switch_table *create_switch_table(const switch_statement_t *statement) } if (l->is_empty_range) continue; - ir_tarval *min = fold_constant_to_tarval(l->expression); - ir_tarval *max = min; + ir_tarval *min = l->first_case; + ir_tarval *max = l->last_case; long pn = (long) i+1; - if (l->end_range != NULL) - max = fold_constant_to_tarval(l->end_range); ir_switch_table_set(res, i++, min, max, pn); l->pn = pn; } @@ -4921,11 +5279,11 @@ static ir_switch_table *create_switch_table(const switch_statement_t *statement) static ir_node *switch_statement_to_firm(switch_statement_t *statement) { - dbg_info *dbgi = get_dbg_info(&statement->base.source_position); + dbg_info *dbgi = get_dbg_info(&statement->base.pos); ir_node *switch_node = NULL; if (currently_reachable()) { - ir_node *expression = expression_to_firm(statement->expression); + ir_node *expression = expression_to_value(statement->expression); ir_switch_table *table = create_switch_table(statement); unsigned n_outs = (unsigned)ir_switch_table_get_n_entries(table) + 1; @@ -4934,53 +5292,44 @@ static ir_node *switch_statement_to_firm(switch_statement_t *statement) set_unreachable_now(); + PUSH_BREAK(NULL); ir_node *const old_switch = current_switch; - ir_node *const old_break_label = break_label; const bool old_saw_default_label = saw_default_label; saw_default_label = false; current_switch = switch_node; - break_label = NULL; statement_to_firm(statement->body); - - if (currently_reachable()) { - add_immBlock_pred(get_break_label(), new_Jmp()); - } + jump_to_target(&break_target); if (!saw_default_label && switch_node) { ir_node *proj = new_d_Proj(dbgi, switch_node, mode_X, pn_Switch_default); - add_immBlock_pred(get_break_label(), proj); + add_pred_to_jump_target(&break_target, proj); } - if (break_label != NULL) { - mature_immBlock(break_label); - } - set_cur_block(break_label); + enter_jump_target(&break_target); assert(current_switch == switch_node); current_switch = old_switch; - break_label = old_break_label; saw_default_label = old_saw_default_label; + POP_BREAK(); return NULL; } static ir_node *case_label_to_firm(const case_label_statement_t *statement) { - if (statement->is_empty_range) - return NULL; + if (current_switch != NULL && !statement->is_empty_range) { + jump_target case_target; + init_jump_target(&case_target, NULL); - if (current_switch != NULL) { - ir_node *block = new_immBlock(); /* Fallthrough from previous case */ - jump_if_reachable(block); + jump_to_target(&case_target); - ir_node *const proj = new_Proj(current_switch, mode_X, statement->pn); - add_immBlock_pred(block, proj); + ir_node *const proj = new_Proj(current_switch, mode_X, statement->pn); + add_pred_to_jump_target(&case_target, proj); if (statement->expression == NULL) saw_default_label = true; - mature_immBlock(block); - set_cur_block(block); + enter_jump_target(&case_target); } return statement_to_firm(statement->statement); @@ -4988,47 +5337,51 @@ static ir_node *case_label_to_firm(const case_label_statement_t *statement) static ir_node *label_to_firm(const label_statement_t *statement) { - ir_node *block = get_label_block(statement->label); - jump_to(block); - - set_cur_block(block); - keep_alive(block); - keep_all_memory(block); + label_t *const label = statement->label; + prepare_label_target(label); + jump_to_target(&label->target); + if (--label->n_users == 0) { + enter_jump_target(&label->target); + } else { + enter_immature_jump_target(&label->target); + keep_loop(); + } return statement_to_firm(statement->statement); } -static ir_node *computed_goto_to_firm(computed_goto_statement_t const *const statement) +static ir_node *goto_statement_to_firm(goto_statement_t *const stmt) { - if (!currently_reachable()) - return NULL; - - ir_node *const irn = expression_to_firm(statement->expression); - dbg_info *const dbgi = get_dbg_info(&statement->base.source_position); - ir_node *const ijmp = new_d_IJmp(dbgi, irn); - - set_irn_link(ijmp, ijmp_list); - ijmp_list = ijmp; - + label_t *const label = stmt->label; + prepare_label_target(label); + jump_to_target(&label->target); + if (--label->n_users == 0) + enter_jump_target(&label->target); set_unreachable_now(); return NULL; } -static ir_node *asm_statement_to_firm(const asm_statement_t *statement) +static ir_node *computed_goto_to_firm(computed_goto_statement_t const *const statement) { - bool needs_memory = false; - - if (statement->is_volatile) { - needs_memory = true; + if (currently_reachable()) { + ir_node *const op = expression_to_value(statement->expression); + ARR_APP1(ir_node*, ijmp_ops, op); + jump_to_target(&ijmp_target); + set_unreachable_now(); } + return NULL; +} - size_t n_clobbers = 0; - asm_clobber_t *clobber = statement->clobbers; +static ir_node *asm_statement_to_firm(const asm_statement_t *statement) +{ + bool needs_memory = statement->is_volatile; + size_t n_clobbers = 0; + asm_clobber_t *clobber = statement->clobbers; for ( ; clobber != NULL; clobber = clobber->next) { const char *clobber_str = clobber->clobber.begin; if (!be_is_valid_clobber(clobber_str)) { - errorf(&statement->base.source_position, + errorf(&statement->base.pos, "invalid clobber '%s' specified", clobber->clobber); continue; } @@ -5075,7 +5428,7 @@ static ir_node *asm_statement_to_firm(const asm_statement_t *statement) = be_parse_asm_constraints(constraints); { - source_position_t const *const pos = &statement->base.source_position; + position_t const *const pos = &statement->base.pos; if (asm_flags & ASM_CONSTRAINT_FLAG_NO_SUPPORT) { warningf(WARN_OTHER, pos, "some constraints in '%s' are not supported", constraints); } @@ -5132,11 +5485,11 @@ static ir_node *asm_statement_to_firm(const asm_statement_t *statement) constraint.mode = mode_M; tmp_in_constraints[in_size] = constraint; - ins[in_size] = expression_to_addr(expr); + ins[in_size] = expression_to_addr(expr); ++in_size; continue; } else { - errorf(&statement->base.source_position, + errorf(&statement->base.pos, "only modifiers but no place set in constraints '%s'", constraints); continue; @@ -5164,17 +5517,17 @@ static ir_node *asm_statement_to_firm(const asm_statement_t *statement) = be_parse_asm_constraints(constraints); if (asm_flags & ASM_CONSTRAINT_FLAG_NO_SUPPORT) { - errorf(&statement->base.source_position, + errorf(&statement->base.pos, "some constraints in '%s' are not supported", constraints); continue; } if (asm_flags & ASM_CONSTRAINT_FLAG_INVALID) { - errorf(&statement->base.source_position, + errorf(&statement->base.pos, "some constraints in '%s' are invalid", constraints); continue; } if (asm_flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE) { - errorf(&statement->base.source_position, + errorf(&statement->base.pos, "write flag specified for input constraints '%s'", constraints); continue; @@ -5184,7 +5537,7 @@ static ir_node *asm_statement_to_firm(const asm_statement_t *statement) if ( (asm_flags & ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE) || (asm_flags & ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER) ) { /* we can treat this as "normal" input */ - input = expression_to_firm(argument->expression); + input = expression_to_value(argument->expression); } else if (asm_flags & ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP) { /* pure memory ops need no input (but we have to make sure we * attach to the memory) */ @@ -5194,7 +5547,7 @@ static ir_node *asm_statement_to_firm(const asm_statement_t *statement) needs_memory = true; input = expression_to_addr(argument->expression); } else { - errorf(&statement->base.source_position, + errorf(&statement->base.pos, "only modifiers but no place set in constraints '%s'", constraints); continue; @@ -5209,26 +5562,17 @@ static ir_node *asm_statement_to_firm(const asm_statement_t *statement) ins[in_size++] = input; } - if (needs_memory) { - ir_asm_constraint constraint; - constraint.pos = next_pos++; - constraint.constraint = new_id_from_str(""); - constraint.mode = mode_M; - - obstack_grow(&asm_obst, &constraint, sizeof(constraint)); - ins[in_size++] = get_store(); - } - + ir_node *mem = needs_memory ? get_store() : new_NoMem(); assert(obstack_object_size(&asm_obst) == in_size * sizeof(ir_asm_constraint)); ir_asm_constraint *input_constraints = obstack_finish(&asm_obst); /* create asm node */ - dbg_info *dbgi = get_dbg_info(&statement->base.source_position); + dbg_info *dbgi = get_dbg_info(&statement->base.pos); ident *asm_text = new_id_from_str(statement->asm_text.begin); - ir_node *node = new_d_ASM(dbgi, in_size, ins, input_constraints, + ir_node *node = new_d_ASM(dbgi, mem, in_size, ins, input_constraints, out_size, output_constraints, n_clobbers, clobbers, asm_text); @@ -5261,14 +5605,14 @@ static ir_node *asm_statement_to_firm(const asm_statement_t *statement) static ir_node *ms_try_statement_to_firm(ms_try_statement_t *statement) { statement_to_firm(statement->try_statement); - source_position_t const *const pos = &statement->base.source_position; + position_t const *const pos = &statement->base.pos; warningf(WARN_OTHER, pos, "structured exception handling ignored"); return NULL; } static ir_node *leave_statement_to_firm(leave_statement_t *statement) { - errorf(&statement->base.source_position, "__leave not supported yet"); + errorf(&statement->base.pos, "__leave not supported yet"); return NULL; } @@ -5292,19 +5636,25 @@ static ir_node *statement_to_firm(statement_t *const stmt) case STATEMENT_EMPTY: return NULL; /* nothing */ case STATEMENT_EXPRESSION: return expression_statement_to_firm( &stmt->expression); case STATEMENT_FOR: return for_statement_to_firm( &stmt->fors); + case STATEMENT_GOTO: return goto_statement_to_firm( &stmt->gotos); case STATEMENT_IF: return if_statement_to_firm( &stmt->ifs); case STATEMENT_LABEL: return label_to_firm( &stmt->label); case STATEMENT_LEAVE: return leave_statement_to_firm( &stmt->leave); case STATEMENT_MS_TRY: return ms_try_statement_to_firm( &stmt->ms_try); case STATEMENT_RETURN: return return_statement_to_firm( &stmt->returns); case STATEMENT_SWITCH: return switch_statement_to_firm( &stmt->switchs); - case STATEMENT_WHILE: return while_statement_to_firm( &stmt->whiles); - case STATEMENT_BREAK: return create_jump_statement(stmt, get_break_label()); - case STATEMENT_CONTINUE: return create_jump_statement(stmt, continue_label); - case STATEMENT_GOTO: return create_jump_statement(stmt, get_label_block(stmt->gotos.label)); + { + jump_target *tgt; + case STATEMENT_BREAK: tgt = &break_target; goto jump; + case STATEMENT_CONTINUE: tgt = &continue_target; goto jump; +jump: + jump_to_target(tgt); + set_unreachable_now(); + return NULL; + } - case STATEMENT_ERROR: panic("error statement found"); + case STATEMENT_ERROR: panic("error statement"); } panic("statement not implemented"); } @@ -5315,21 +5665,11 @@ static int count_local_variables(const entity_t *entity, int count = 0; entity_t const *const end = last != NULL ? last->base.next : NULL; for (; entity != end; entity = entity->base.next) { - type_t *type; - bool address_taken; - - if (entity->kind == ENTITY_VARIABLE) { - type = skip_typeref(entity->declaration.type); - address_taken = entity->variable.address_taken; - } else if (entity->kind == ENTITY_PARAMETER) { - type = skip_typeref(entity->declaration.type); - address_taken = entity->parameter.address_taken; - } else { - continue; + if ((entity->kind == ENTITY_VARIABLE || entity->kind == ENTITY_PARAMETER) && + !var_needs_entity(&entity->variable)) { + type_t *type = skip_typeref(entity->declaration.type); + count += is_type_complex(type) ? 2 : 1; } - - if (!address_taken && is_type_scalar(type)) - ++count; } return count; } @@ -5367,7 +5707,7 @@ static int get_function_n_local_vars(entity_t *entity) count += count_local_variables(function->parameters.entities, NULL); /* count local variables declared in body */ - walk_statements(function->statement, count_local_variables_in_stmt, &count); + walk_statements(function->body, count_local_variables_in_stmt, &count); return count; } @@ -5394,8 +5734,6 @@ static void initialize_function_parameters(entity_t *entity) function_irtype = get_ir_type(entity->declaration.type); } - - entity_t *parameter = entity->function.parameters.entities; for ( ; parameter != NULL; parameter = parameter->base.next, ++n) { if (parameter->kind != ENTITY_PARAMETER) @@ -5404,64 +5742,46 @@ static void initialize_function_parameters(entity_t *entity) assert(parameter->declaration.kind == DECLARATION_KIND_UNKNOWN); type_t *type = skip_typeref(parameter->declaration.type); - bool needs_entity = parameter->parameter.address_taken; - assert(!is_type_array(type)); - if (is_type_compound(type)) { - needs_entity = true; - } - - ir_type *param_irtype = get_method_param_type(function_irtype, n); - if (needs_entity) { + dbg_info *const dbgi = get_dbg_info(¶meter->base.pos); + ir_type *const param_irtype = get_method_param_type(function_irtype, n); + if (var_needs_entity(¶meter->variable)) { ir_type *frame_type = get_irg_frame_type(irg); ir_entity *param - = new_parameter_entity(frame_type, n, param_irtype); - parameter->declaration.kind - = DECLARATION_KIND_PARAMETER_ENTITY; - parameter->parameter.v.entity = param; - continue; + = new_d_parameter_entity(frame_type, n, param_irtype, dbgi); + parameter->declaration.kind = DECLARATION_KIND_PARAMETER_ENTITY; + parameter->variable.v.entity = param; + } else if (is_type_complex(type)) { + ir_type *frame_type = get_irg_frame_type(irg); + ir_entity *param + = new_d_parameter_entity(frame_type, n, param_irtype, dbgi); + ir_node *nomem = get_irg_no_mem(irg); + ir_node *frame = get_irg_frame(irg); + ir_node *addr = new_simpleSel(nomem, frame, param); + complex_value value = complex_deref_address(NULL, type, addr, cons_floats); + + parameter->declaration.kind = DECLARATION_KIND_PARAMETER; + parameter->variable.v.value_number = next_value_number_function; + set_irg_loc_description(irg, next_value_number_function, + parameter); + set_irg_loc_description(irg, next_value_number_function+1, + parameter); + set_value(next_value_number_function, value.real); + set_value(next_value_number_function+1, value.imag); + next_value_number_function += 2; + } else { + ir_mode *param_mode = get_type_mode(param_irtype); + long pn = n; + ir_node *value = new_rd_Proj(dbgi, args, param_mode, pn); + value = conv_to_storage_type(dbgi, value, type); + + parameter->declaration.kind = DECLARATION_KIND_PARAMETER; + parameter->variable.v.value_number = next_value_number_function; + set_irg_loc_description(irg, next_value_number_function, + parameter); + ++next_value_number_function; + + set_value(parameter->variable.v.value_number, value); } - - ir_mode *param_mode = get_type_mode(param_irtype); - long pn = n; - ir_node *value = new_r_Proj(args, param_mode, pn); - - ir_mode *mode = get_ir_mode_storage(type); - value = create_conv(NULL, value, mode); - value = do_strict_conv(NULL, value); - - parameter->declaration.kind = DECLARATION_KIND_PARAMETER; - parameter->parameter.v.value_number = next_value_number_function; - set_irg_loc_description(current_ir_graph, next_value_number_function, - parameter); - ++next_value_number_function; - - set_value(parameter->parameter.v.value_number, value); - } -} - -/** - * Handle additional decl modifiers for IR-graphs - * - * @param irg the IR-graph - * @param dec_modifiers additional modifiers - */ -static void handle_decl_modifier_irg(ir_graph *irg, - decl_modifiers_t decl_modifiers) -{ - if (decl_modifiers & DM_NAKED) { - /* TRUE if the declaration includes the Microsoft - __declspec(naked) specifier. */ - add_irg_additional_properties(irg, mtp_property_naked); - } - if (decl_modifiers & DM_FORCEINLINE) { - /* TRUE if the declaration includes the - Microsoft __forceinline specifier. */ - set_irg_inline_property(irg, irg_inline_forced); - } - if (decl_modifiers & DM_NOINLINE) { - /* TRUE if the declaration includes the Microsoft - __declspec(noinline) specifier. */ - set_irg_inline_property(irg, irg_inline_forbidden); } } @@ -5488,17 +5808,6 @@ static void add_function_pointer(ir_type *segment, ir_entity *method, set_atomic_ent_value(ptr, val); } -/** - * Generate possible IJmp branches to a given label block. - */ -static void gen_ijmp_branches(ir_node *block) -{ - ir_node *ijmp; - for (ijmp = ijmp_list; ijmp != NULL; ijmp = get_irn_link(ijmp)) { - add_immBlock_pred(block, ijmp); - } -} - /** * Create code for a function and all inner functions. * @@ -5509,7 +5818,7 @@ static void create_function(entity_t *entity) assert(entity->kind == ENTITY_FUNCTION); ir_entity *function_entity = get_function_entity(entity, current_outer_frame); - if (entity->function.statement == NULL) + if (entity->function.body == NULL) return; inner_functions = NULL; @@ -5528,9 +5837,11 @@ static void create_function(entity_t *entity) current_function_name = NULL; current_funcsig = NULL; - assert(all_labels == NULL); - all_labels = NEW_ARR_F(label_t *, 0); - ijmp_list = NULL; + assert(!ijmp_ops); + assert(!ijmp_blocks); + init_jump_target(&ijmp_target, NULL); + ijmp_ops = NEW_ARR_F(ir_node*, 0); + ijmp_blocks = NEW_ARR_F(ir_node*, 0); int n_local_vars = get_function_n_local_vars(entity); ir_graph *irg = new_ir_graph(function_entity, n_local_vars); @@ -5543,20 +5854,14 @@ static void create_function(entity_t *entity) current_vararg_entity = NULL; set_irg_fp_model(irg, firm_fp_model); - tarval_enable_fp_ops(1); set_irn_dbg_info(get_irg_start_block(irg), get_entity_dbg_info(function_entity)); - /* set inline flags */ - if (entity->function.is_inline) - set_irg_inline_property(irg, irg_inline_recomended); - handle_decl_modifier_irg(irg, entity->declaration.modifiers); - next_value_number_function = 0; initialize_function_parameters(entity); current_static_link = entity->function.static_link; - statement_to_firm(entity->function.statement); + statement_to_firm(entity->function.body); ir_node *end_block = get_irg_end_block(irg); @@ -5584,16 +5889,22 @@ static void create_function(entity_t *entity) add_immBlock_pred(end_block, ret); } - for (int i = ARR_LEN(all_labels) - 1; i >= 0; --i) { - label_t *label = all_labels[i]; - if (label->address_taken) { - gen_ijmp_branches(label->block); + if (enter_jump_target(&ijmp_target)) { + keep_loop(); + size_t const n = ARR_LEN(ijmp_ops); + ir_node *const op = n == 1 ? ijmp_ops[0] : new_Phi(n, ijmp_ops, get_irn_mode(ijmp_ops[0])); + ir_node *const ijmp = new_IJmp(op); + for (size_t i = ARR_LEN(ijmp_blocks); i-- != 0;) { + ir_node *const block = ijmp_blocks[i]; + add_immBlock_pred(block, ijmp); + mature_immBlock(block); } - mature_immBlock(label->block); } - DEL_ARR_F(all_labels); - all_labels = NULL; + DEL_ARR_F(ijmp_ops); + DEL_ARR_F(ijmp_blocks); + ijmp_ops = NULL; + ijmp_blocks = NULL; irg_finalize_cons(irg); @@ -5711,9 +6022,7 @@ static void init_ir_types(void) return; ir_types_initialized = 1; - ir_type_char = get_ir_type(type_char); - ir_type_const_char = get_ir_type(type_const_char); - ir_type_wchar_t = get_ir_type(type_wchar_t); + ir_type_char = get_ir_type(type_char); be_params = be_get_backend_param(); mode_float_arithmetic = be_params->mode_float_arithmetic; @@ -5733,13 +6042,8 @@ static void global_asm_to_firm(statement_t *s) assert(s->kind == STATEMENT_ASM); char const *const text = s->asms.asm_text.begin; - size_t size = s->asms.asm_text.size; - - /* skip the last \0 */ - if (text[size - 1] == '\0') - --size; - - ident *const id = new_id_from_chars(text, size); + size_t const size = s->asms.asm_text.size; + ident *const id = new_id_from_chars(text, size); add_irp_asm(id); } } @@ -5747,8 +6051,9 @@ static void global_asm_to_firm(statement_t *s) static const char *get_cwd(void) { static char buf[1024]; - if (buf[0] == '\0') - getcwd(buf, sizeof(buf)); + if (buf[0] == '\0') { + return getcwd(buf, sizeof(buf)); + } return buf; } @@ -5763,15 +6068,18 @@ void translation_unit_to_firm(translation_unit_t *unit) } else { be_dwarf_set_source_language(DW_LANG_C); } - be_dwarf_set_compilation_directory(get_cwd()); + const char *cwd = get_cwd(); + if (cwd != NULL) { + be_dwarf_set_compilation_directory(cwd); + } /* initialize firm arithmetic */ tarval_set_integer_overflow_mode(TV_OVERFLOW_WRAP); ir_set_uninitialized_local_variable_func(uninitialized_local_var); /* just to be sure */ - continue_label = NULL; - break_label = NULL; + init_jump_target(&break_target, NULL); + init_jump_target(&continue_target, NULL); current_switch = NULL; current_translation_unit = unit;