#include <assert.h>
#include <string.h>
#include <stdbool.h>
+#include <unistd.h>
#include <limits.h>
#include <libfirm/firm.h>
#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"
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;
-static ir_type *ir_type_void;
-static ir_type *ir_type_int;
/* architecture specific floating point arithmetic mode (if any) */
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;
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);
}
-static const char *dbg_retrieve(const dbg_info *dbg, unsigned *line)
+static src_loc_t dbg_retrieve(const dbg_info *dbg)
{
- const source_position_t *pos = (const source_position_t*) dbg;
- if (pos == NULL)
- return NULL;
- if (line != NULL)
- *line = pos->lineno;
- return pos->input_name;
+ position_t const *const pos = (position_t const*)dbg;
+ if (pos) {
+ return (src_loc_t){ pos->input_name, pos->lineno, pos->colno };
+ } else {
+ return (src_loc_t){ NULL, 0, 0 };
+ }
}
-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;
}
static ir_node *_expression_to_firm(const expression_t *expression);
static ir_node *expression_to_firm(const expression_t *expression);
-static void create_local_declaration(entity_t *entity);
static unsigned decide_modulo_shift(unsigned type_size)
{
{
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];
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);
- /* FIXME: finish the array */
- return NULL;
+ return irtype;
}
/**
int n_parameters = count_parameters(function_type)
+ (for_closure ? 1 : 0);
- int n_results = return_type == type_void ? 0 : 1;
+ int n_results = is_type_void(return_type) ? 0 : 1;
type_dbg_info *dbgi = get_type_dbg_info_((const type_t*) function_type);
ir_type *irtype = new_d_type_method(n_parameters, n_results, dbgi);
- if (return_type != type_void) {
+ if (!is_type_void(return_type)) {
ir_type *restype = get_ir_type(return_type);
set_method_res_type(irtype, 0, restype);
}
{
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 {
}
}
-#define INVALID_TYPE ((ir_type*)-1)
-
-enum {
- COMPOUND_IS_STRUCT = false,
- COMPOUND_IS_UNION = true
-};
-
/**
* Construct firm type from ast struct type.
*/
-static ir_type *create_compound_type(compound_type_t *type,
- bool incomplete, bool is_union)
+static ir_type *create_compound_type(compound_type_t *const type, bool const incomplete)
{
compound_t *compound = type->compound;
return compound->irtype;
}
+ bool const is_union = type->base.kind == TYPE_COMPOUND_UNION;
+
symbol_t *type_symbol = compound->base.symbol;
ident *id;
if (type_symbol != NULL) {
/* 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) {
return irtype;
}
-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);
ir_tarval * tv_next = get_mode_null(mode);
- bool constant_folding_old = constant_folding;
- constant_folding = true;
-
enum_t *enume = type->enume;
entity_t *entry = enume->base.next;
for (; entry != NULL; entry = entry->base.next) {
expression_t *const init = entry->enum_value.value;
if (init != NULL) {
- ir_node *const cnst = expression_to_firm(init);
- if (!is_Const(cnst)) {
- panic("couldn't fold constant");
- }
- tv_next = get_Const_tarval(cnst);
+ tv_next = fold_constant_to_tarval(init);
}
assert(entry->enum_value.tv == NULL || entry->enum_value.tv == tv_next);
entry->enum_value.tv = tv_next;
tv_next = tarval_add(tv_next, one);
}
-
- constant_folding = constant_folding_old;
}
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) {
- assert(type->base.firm_type != INVALID_TYPE);
return type->base.firm_type;
}
- switch (type->kind) {
- case TYPE_COMPOUND_STRUCT:
- return create_compound_type(&type->compound, true, COMPOUND_IS_STRUCT);
- case TYPE_COMPOUND_UNION:
- return create_compound_type(&type->compound, true, COMPOUND_IS_UNION);
- default:
+ if (is_type_compound(type)) {
+ return create_compound_type(&type->compound, true);
+ } else {
return get_ir_type(type);
}
}
ir_type *get_ir_type(type_t *type)
{
- assert(type != NULL);
-
type = skip_typeref(type);
if (type->base.firm_type != NULL) {
- assert(type->base.firm_type != INVALID_TYPE);
return type->base.firm_type;
}
ir_type *firm_type = NULL;
switch (type->kind) {
- case TYPE_ERROR:
- /* Happens while constant folding, when there was an error */
- return create_atomic_type(ATOMIC_TYPE_VOID, NULL);
-
case TYPE_ATOMIC:
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);
firm_type = create_array_type(&type->array);
break;
case TYPE_COMPOUND_STRUCT:
- firm_type = create_compound_type(&type->compound, false, COMPOUND_IS_STRUCT);
- break;
case TYPE_COMPOUND_UNION:
- firm_type = create_compound_type(&type->compound, false, COMPOUND_IS_UNION);
+ firm_type = create_compound_type(&type->compound, false);
break;
case TYPE_ENUM:
firm_type = create_enum_type(&type->enumt);
break;
+ case TYPE_ERROR:
case TYPE_TYPEOF:
case TYPE_TYPEDEF:
break;
static ir_mode *get_ir_mode_storage(type_t *type)
{
- ir_type *irtype = get_ir_type(type);
+ type = skip_typeref(type);
- /* firm doesn't report a mode for arrays somehow... */
- if (is_Array_type(irtype)) {
+ /* Firm doesn't report a mode for arrays and structs/unions. */
+ if (!is_type_scalar(type)) {
return mode_P_data;
}
- ir_mode *mode = get_type_mode(irtype);
+ ir_type *const irtype = get_ir_type(type);
+ ir_mode *const mode = get_type_mode(irtype);
assert(mode != NULL);
return mode;
}
create_ld_ident = func;
}
+static bool declaration_is_definition(const entity_t *entity)
+{
+ switch (entity->kind) {
+ case ENTITY_VARIABLE:
+ return entity->declaration.storage_class != STORAGE_CLASS_EXTERN;
+ case ENTITY_FUNCTION:
+ return entity->function.body != NULL;
+ case ENTITY_PARAMETER:
+ case ENTITY_COMPOUND_MEMBER:
+ return false;
+ case ENTITY_TYPEDEF:
+ case ENTITY_ENUM:
+ case ENTITY_ENUM_VALUE:
+ case ENTITY_NAMESPACE:
+ case ENTITY_LABEL:
+ case ENTITY_LOCAL_LABEL:
+ break;
+ }
+ panic("entity is not a declaration");
+}
+
/**
* Handle GNU attributes for entities
*
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_USED) {
+ 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);
}
- if (modifiers & DM_WEAK) {
+ if ((modifiers & DM_WEAK) && declaration_is_definition(entity)
+ && entity->declaration.storage_class != STORAGE_CLASS_EXTERN) {
add_entity_linkage(irentity, IR_LINKAGE_WEAK);
}
}
return NULL;
}
- if (is_main(entity)) {
- /* force main to C linkage */
- type_t *type = entity->declaration.type;
- assert(is_type_function(type));
- if (type->function.linkage != LINKAGE_C) {
- type_t *new_type = duplicate_type(type);
- new_type->function.linkage = LINKAGE_C;
- type = identify_new_type(new_type);
- entity->declaration.type = type;
- }
- }
-
symbol_t *symbol = entity->base.symbol;
ident *id = new_id_from_str(symbol->string);
/* 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) {
- if (get_entity_visibility(irentity) == ir_visibility_external
- && has_body) {
- set_entity_visibility(irentity, ir_visibility_default);
- }
goto entity_created;
}
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;
handle_decl_modifiers(irentity, entity);
if (! nested_function) {
- /* static inline => local
- * extern inline => local
- * inline without definition => local
- * inline with definition => external_visible */
storage_class_tag_t const storage_class
= (storage_class_tag_t) entity->declaration.storage_class;
- bool const is_inline = entity->function.is_inline;
-
- if (is_inline && storage_class == STORAGE_CLASS_NONE && has_body) {
- set_entity_visibility(irentity, ir_visibility_default);
- } else if (storage_class == STORAGE_CLASS_STATIC ||
- (is_inline && has_body)) {
+ if (storage_class == STORAGE_CLASS_STATIC) {
set_entity_visibility(irentity, ir_visibility_local);
- } else if (has_body) {
- set_entity_visibility(irentity, ir_visibility_default);
} else {
set_entity_visibility(irentity, ir_visibility_external);
}
+
+ bool const is_inline = entity->function.is_inline;
+ if (is_inline && has_body) {
+ if (((c_mode & _C99) && storage_class == STORAGE_CLASS_NONE)
+ || ((c_mode & _C99) == 0
+ && storage_class == STORAGE_CLASS_EXTERN)) {
+ add_entity_linkage(irentity, IR_LINKAGE_NO_CODEGEN);
+ }
+ }
} else {
/* nested functions are always local */
set_entity_visibility(irentity, ir_visibility_local);
continue;
type_t *return_type = skip_typeref(function_type->return_type);
- int n_res = return_type != type_void ? 1 : 0;
+ int n_res = is_type_void(return_type) ? 0 : 1;
if (n_res != rts_data[i].n_res)
continue;
return new_d_SymConst(dbgi, mode_P, sym, symconst_addr_ent);
}
+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)) {
- if (is_Const_null(value)) {
- return new_Const(get_mode_null(dest_mode));
- } else {
- return new_Const(get_mode_one(dest_mode));
- }
+ return create_Const_from_bool(dest_mode, !is_Const_null(value));
}
ir_node *cond = new_d_Cond(dbgi, value);
return new_d_Conv(dbgi, value, dest_mode);
}
-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));
-}
-
-/**
- * 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)
-{
- 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);
-}
-
/**
* Creates a SymConst node representing a string constant.
*
* @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);
}
-static bool try_create_integer(literal_expression_t *literal,
- type_t *type, unsigned char base)
+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);
atomic_type_kind_t akind = type->atomic.akind;
- ir_mode *mode = atomic_modes[akind];
- ir_tarval *tv = new_integer_tarval_from_str(string, size, 1, base, 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;
return true;
}
-static void create_integer_tarval(literal_expression_t *literal)
+void determine_literal_type(literal_expression_t *const literal)
{
- unsigned us = 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') { ++us; }
- if (*c == 'l' || *c == 'L') { ++ls; }
- }
- }
+ assert(literal->base.kind == EXPR_LITERAL_INTEGER);
- unsigned base;
- switch (literal->base.kind) {
- case EXPR_LITERAL_INTEGER_OCTAL: base = 8; break;
- case EXPR_LITERAL_INTEGER: base = 10; break;
- case EXPR_LITERAL_INTEGER_HEXADECIMAL: base = 16; break;
- default: panic("invalid literal kind");
- }
+ /* -1: signed only, 0: any, 1: unsigned only */
+ 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 (us == 0 && try_create_integer(literal, type_int, base))
- goto finished;
- if ((us == 1 || base != 10)
- && try_create_integer(literal, type_unsigned_int, base))
- goto finished;
- }
- if (ls < 2) {
- if (us == 0 && try_create_integer(literal, type_long, base))
- goto finished;
- if ((us == 1 || base != 10)
- && try_create_integer(literal, type_unsigned_long, base))
- 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 (us != 1 && base == 10)
+ if (sign < 0)
tarval_set_integer_overflow_mode(TV_OVERFLOW_WRAP);
- if (us == 0 && try_create_integer(literal, type_long_long, base))
+ if (sign <= 0 && try_create_integer(literal, type_long_long))
goto finished;
/* last try */
- assert(us == 1 || base != 10);
+ assert(sign >= 0);
tarval_set_integer_overflow_mode(TV_OVERFLOW_WRAP);
- bool res = try_create_integer(literal, type_unsigned_long_long, base);
+ bool res = try_create_integer(literal, type_unsigned_long_long);
if (!res)
panic("internal error when parsing number literal");
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)
{
+ type_t *type = skip_typeref(literal->base.type);
+ ir_mode *mode = get_ir_mode_storage(type);
+ 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 *dbgi = get_dbg_info(&literal->base.pos);
+ ir_node *res = new_d_Const(dbgi, tv);
+ ir_mode *mode_arith = get_ir_mode_arithmetic(type);
+ return create_conv(dbgi, res, mode_arith);
}
/**
- * 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);
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);
tv = new_tarval_from_str(buf, len, mode);
- goto make_const;
+ 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;
size_t len = snprintf(buf, sizeof(buf), "%lld", v);
tv = new_tarval_from_str(buf, len, mode);
- goto make_const;
- }
- case EXPR_LITERAL_INTEGER:
- case EXPR_LITERAL_INTEGER_OCTAL:
- case EXPR_LITERAL_INTEGER_HEXADECIMAL:
- assert(literal->target_value != NULL);
- tv = literal->target_value;
- goto make_const;
- case EXPR_LITERAL_FLOATINGPOINT:
- tv = new_tarval_from_str(string, size, mode);
- goto make_const;
- case EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL: {
- char buffer[size + 2];
- memcpy(buffer, "0x", 2);
- memcpy(buffer+2, string, size);
- tv = new_tarval_from_str(buffer, size+2, mode);
- goto make_const;
+ break;
}
- case EXPR_LITERAL_BOOLEAN:
- if (string[0] == 't') {
- tv = get_mode_one(mode);
- } else {
- assert(string[0] == 'f');
- tv = get_mode_null(mode);
- }
- goto make_const;
- case EXPR_LITERAL_MS_NOOP:
- tv = get_mode_null(mode);
- goto make_const;
+
default:
- break;
+ panic("invalid literal kind");
}
- panic("Invalid literal kind found");
-make_const: ;
- dbg_info *dbgi = get_dbg_info(&literal->base.source_position);
+ dbg_info *dbgi = get_dbg_info(&literal->base.pos);
ir_node *res = new_d_Const(dbgi, tv);
ir_mode *mode_arith = get_ir_mode_arithmetic(type);
return create_conv(dbgi, res, mode_arith);
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);
-}
-
/**
* Returns the correct base address depending on whether it is a parameter or a
* normal local variable.
}
/**
- * 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 *reference_expression_enum_value_to_firm(
- const reference_expression_t *ref)
+static ir_node *enum_constant_to_firm(reference_expression_t const *const ref)
{
entity_t *entity = ref->entity;
if (entity->enum_value.tv == NULL) {
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) {
/* 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);
}
}
- 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;
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;
}
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);
+ ir_node *const value = get_value(entity->variable.v.value_number, mode);
+ return create_conv(dbgi, value, get_ir_mode_arithmetic(type));
+ }
+
+ default: {
+ ir_node *const addr = reference_addr(ref);
+ return deref_address(dbgi, entity->declaration.type, addr);
+ }
+ }
}
/**
*/
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;
case BUILTIN_LIBC_CHECK:
panic("builtin did not produce an entity");
}
- panic("invalid builtin found");
+ panic("invalid builtin");
}
/**
*/
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;
type_t *arg_type = skip_typeref(expression->base.type);
if (!is_type_compound(arg_type)) {
- ir_mode *mode = get_ir_mode_storage(expression->base.type);
- arg_node = create_conv(dbgi, arg_node, mode);
- arg_node = do_strict_conv(dbgi, arg_node);
+ ir_mode *const mode = get_ir_mode_storage(arg_type);
+ arg_node = create_conv(dbgi, arg_node, mode);
}
in[n] = arg_node;
set_store(mem);
}
- if (!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
+ if (!is_type_void(return_type)) {
assert(is_type_scalar(return_type));
ir_mode *mode = get_ir_mode_storage(return_type);
result = new_Proj(node, mode, pn_Builtin_max+1);
set_store(mem);
}
- if (!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
- ir_node *resproj = new_Proj(node, mode_T, pn_Call_T_result);
-
- if (is_type_scalar(return_type)) {
- ir_mode *mode = get_ir_mode_storage(return_type);
- result = new_Proj(resproj, mode, 0);
- ir_mode *mode_arith = get_ir_mode_arithmetic(return_type);
- result = create_conv(NULL, result, mode_arith);
- } else {
- ir_mode *mode = mode_P_data;
- result = new_Proj(resproj, mode, 0);
- }
+ 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);
}
}
return result;
}
-static void statement_to_firm(statement_t *statement);
+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 ir_node *create_condition_evaluation(expression_t const *expression, jump_target *true_target, jump_target *false_target);
static void assign_value(dbg_info *dbgi, ir_node *addr, type_t *type,
ir_node *value)
{
- if (!is_type_compound(type)) {
+ if (is_type_scalar(type)) {
ir_mode *mode = get_ir_mode_storage(type);
value = create_conv(dbgi, value, mode);
- value = do_strict_conv(dbgi, value);
}
ir_node *memory = get_store();
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);
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);
}
if (expression->kind == EXPR_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) {
+ 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;
}
}
|| 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));
}
}
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 &&
static ir_node *create_incdec(const unary_expression_t *expression)
{
- dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ dbg_info *const dbgi = get_dbg_info(&expression->base.pos);
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);
store_value = result;
break;
default:
- panic("no incdec expr in create_incdec");
+ panic("no incdec expr");
}
set_value_for_expression_addr(value_expr, store_value, addr);
default:
break;
}
- panic("trying to get pn_Cmp from non-comparison binexpr type");
+ panic("trying to get ir_relation from non-comparison binexpr type");
}
/**
type_t *from_type, type_t *type)
{
type = skip_typeref(type);
- if (type == type_void) {
+ if (is_type_void(type)) {
/* make sure firm type is constructed */
(void) get_ir_type(type);
return NULL;
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, get_ir_mode_storage(from_type));
+ value_node = new_d_Add(dbgi, value_node, base, mode);
}
if (to_var != NULL) {
ir_node *const addr = create_symconst(dbgi, to_var->v.entity);
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;
static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
{
- 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 (expression->base.kind == EXPR_UNARY_TAKE_ADDRESS)
- return expression_to_addr(expression->value);
-
const expression_t *value = expression->value;
switch(expression->base.kind) {
+ case EXPR_UNARY_TAKE_ADDRESS:
+ return expression_to_addr(value);
+
case EXPR_UNARY_NEGATE: {
ir_node *value_node = expression_to_firm(value);
ir_mode *mode = get_ir_mode_arithmetic(type);
default:
break;
}
- panic("invalid UNEXPR type found");
+ panic("invalid unary expression type");
}
/**
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);
+ jump_target true_target;
+ jump_target false_target;
+ init_jump_target(&true_target, NULL);
+ init_jump_target(&false_target, NULL);
+ create_condition_evaluation(expression, &true_target, &false_target);
- 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 *val = NULL;
+ jump_target exit_target;
+ init_jump_target(&exit_target, NULL);
- 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);
+ if (enter_jump_target(&true_target)) {
+ val = new_Const(get_mode_one(mode));
+ jump_to_target(&exit_target);
+ }
+ if (enter_jump_target(&false_target)) {
+ ir_node *const zero = new_Const(get_mode_null(mode));
+ jump_to_target(&exit_target);
+ if (val) {
+ ir_node *const in[] = { val, zero };
+ val = new_rd_Phi(dbgi, exit_target.block, lengthof(in), in, mode);
+ } else {
+ val = zero;
+ }
+ }
+
+ if (!enter_jump_target(&exit_target)) {
+ set_cur_block(new_Block(0, NULL));
+ val = new_Unknown(mode);
+ }
return val;
}
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);
static ir_node *create_lazy_op(const binary_expression_t *expression)
{
- 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);
ir_mode *mode = get_ir_mode_arithmetic(type);
static ir_node *create_assign_binop(const binary_expression_t *expression)
{
- dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ dbg_info *const dbgi = get_dbg_info(&expression->base.pos);
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 *result = create_op(dbgi, expression, left, right);
result = create_cast(dbgi, result, expression->right->base.type, type);
- result = do_strict_conv(dbgi, result);
result = set_value_for_expression_addr(left_expr, result, left_addr);
case EXPR_BINARY_ISLESSEQUAL:
case EXPR_BINARY_ISLESSGREATER:
case EXPR_BINARY_ISUNORDERED: {
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.pos);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
ir_relation relation = get_relation(kind);
case EXPR_BINARY_SHIFTLEFT:
case EXPR_BINARY_SHIFTRIGHT:
{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.pos);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
return create_op(dbgi, expression, left, right);
case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
return create_assign_binop(expression);
default:
- panic("TODO binexpr type");
+ panic("invalid binexpr type");
}
}
static ir_node *array_access_addr(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 *base_addr = expression_to_firm(expression->array_ref);
ir_node *offset = expression_to_firm(expression->index);
type_t *ref_type = skip_typeref(expression->array_ref->base.type);
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);
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);
ir_mode *mode = get_ir_mode_arithmetic(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);
}
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);
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 {
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);
&& expression->tp_expression != NULL) {
expression_to_firm(expression->tp_expression);
}
- /* strange gnu extensions: sizeof(function) == 1 */
- if (is_type_function(type)) {
- ir_mode *mode = get_ir_mode_storage(type_size_t);
- return new_Const(get_mode_one(mode));
- }
return get_type_size_node(type);
}
if (tp_expression != NULL) {
entity_t *entity = get_expression_entity(tp_expression);
if (entity != NULL) {
- if (entity->kind == ENTITY_FUNCTION) {
- /* a gnu-extension */
- alignment = 1;
- } else {
- alignment = get_cparser_entity_alignment(entity);
- }
+ alignment = get_cparser_entity_alignment(entity);
}
}
alignment = get_type_alignment(type);
}
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.pos);
ir_mode *mode = get_ir_mode_arithmetic(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_type_valid(skip_typeref(expression->base.type)));
+ assert(is_constant_expression(expression) == EXPR_CLASS_CONSTANT);
bool constant_folding_old = constant_folding;
constant_folding = true;
init_ir_types();
- assert(is_constant_expression(expression) == EXPR_CLASS_CONSTANT);
-
- 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_firm(expression);
+ POP_IRG();
- ir_node *cnst = expression_to_firm(expression);
- current_ir_graph = old_current_ir_graph;
set_optimize(old_optimize);
set_opt_constant_folding(old_constant_folding);
constant_folding = constant_folding_old;
- return get_Const_tarval(cnst);
+ 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);
}
/* this function is only used in parser.c, but it relies on libfirm functionality */
bool constant_is_negative(const expression_t *expression)
{
- assert(is_constant_expression(expression) == EXPR_CLASS_CONSTANT);
ir_tarval *tv = fold_constant_to_tarval(expression);
return tarval_is_negative(tv);
}
long fold_constant_to_int(const expression_t *expression)
{
- if (expression->kind == EXPR_ERROR)
- return 0;
-
ir_tarval *tv = fold_constant_to_tarval(expression);
if (!tarval_is_long(tv)) {
panic("result of constant folding is not integer");
bool fold_constant_to_bool(const expression_t *expression)
{
- if (expression->kind == EXPR_ERROR)
- return false;
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);
-
/* first try to fold a constant condition */
if (is_constant_expression(expression->condition) == EXPR_CLASS_CONSTANT) {
bool val = fold_constant_to_bool(expression->condition);
}
}
- 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);
+ 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 = create_condition_evaluation(expression->condition, &true_target, &false_target);
- 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));
- }
- 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);
+ ir_node *val = NULL;
+ jump_target exit_target;
+ init_jump_target(&exit_target, NULL);
- /* 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;
+ if (enter_jump_target(&true_target)) {
+ if (expression->true_expression) {
+ val = expression_to_firm(expression->true_expression);
+ } else if (cond_expr && get_irn_mode(cond_expr) != mode_b) {
+ 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_Is));
+ }
+ jump_to_target(&exit_target);
+ }
- ir_node *const in[2] = { true_val, false_val };
- type_t *const type = skip_typeref(expression->base.type);
- ir_mode *mode;
- if (is_type_compound(type)) {
- mode = mode_P;
- } else {
- mode = get_ir_mode_arithmetic(type);
+ if (enter_jump_target(&false_target)) {
+ ir_node *const false_val = expression_to_firm(expression->false_expression);
+ jump_to_target(&exit_target);
+ if (val) {
+ ir_node *const in[] = { val, false_val };
+ dbg_info *const dbgi = get_dbg_info(&expression->base.pos);
+ val = new_rd_Phi(dbgi, exit_target.block, lengthof(in), in, get_irn_mode(val));
+ } else {
+ val = false_val;
+ }
}
- ir_node *const val = new_d_Phi(dbgi, lengthof(in), in, mode);
+ if (!enter_jump_target(&exit_target)) {
+ set_cur_block(new_Block(0, NULL));
+ type_t *const type = skip_typeref(expression->base.type);
+ if (!is_type_void(type))
+ val = new_Unknown(get_ir_mode_arithmetic(type));
+ }
return val;
}
*/
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);
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);
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;
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;
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);
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;
}
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);
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);
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);
+ }
}
/**
*/
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);
}
-static ir_node *error_to_firm(const expression_t *expression)
-{
- ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- return new_Bad(mode);
-}
-
/**
* 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(const expression_t *expression)
+static ir_node *_expression_to_firm(expression_t const *const expr)
{
#ifndef NDEBUG
if (!constant_folding) {
- assert(!expression->base.transformed);
- ((expression_t*) expression)->base.transformed = true;
+ assert(!expr->base.transformed);
+ ((expression_t*)expr)->base.transformed = true;
}
#endif
- switch (expression->kind) {
- case EXPR_LITERAL_CASES:
- return literal_to_firm(&expression->literal);
- case EXPR_STRING_LITERAL:
- return string_to_firm(&expression->base.source_position, "str.%u",
- &expression->literal.value);
- case EXPR_WIDE_STRING_LITERAL:
- return wide_string_literal_to_firm(&expression->string_literal);
- case EXPR_REFERENCE:
- return reference_expression_to_firm(&expression->reference);
- case EXPR_REFERENCE_ENUM_VALUE:
- return reference_expression_enum_value_to_firm(&expression->reference);
- case EXPR_CALL:
- return call_expression_to_firm(&expression->call);
- case EXPR_UNARY_CASES:
- return unary_expression_to_firm(&expression->unary);
- case EXPR_BINARY_CASES:
- return binary_expression_to_firm(&expression->binary);
- case EXPR_ARRAY_ACCESS:
- return array_access_to_firm(&expression->array_access);
- case EXPR_SIZEOF:
- return sizeof_to_firm(&expression->typeprop);
- case EXPR_ALIGNOF:
- return alignof_to_firm(&expression->typeprop);
- case EXPR_CONDITIONAL:
- return conditional_to_firm(&expression->conditional);
- case EXPR_SELECT:
- return select_to_firm(&expression->select);
- case EXPR_CLASSIFY_TYPE:
- return classify_type_to_firm(&expression->classify_type);
- case EXPR_FUNCNAME:
- return function_name_to_firm(&expression->funcname);
- case EXPR_STATEMENT:
- return statement_expression_to_firm(&expression->statement);
- case EXPR_VA_START:
- return va_start_expression_to_firm(&expression->va_starte);
- case EXPR_VA_ARG:
- return va_arg_expression_to_firm(&expression->va_arge);
- case EXPR_VA_COPY:
- return va_copy_expression_to_firm(&expression->va_copye);
- case EXPR_BUILTIN_CONSTANT_P:
- return builtin_constant_to_firm(&expression->builtin_constant);
- case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
- return builtin_types_compatible_to_firm(&expression->builtin_types_compatible);
- case EXPR_OFFSETOF:
- return offsetof_to_firm(&expression->offsetofe);
- case EXPR_COMPOUND_LITERAL:
- return compound_literal_to_firm(&expression->compound_literal);
- case EXPR_LABEL_ADDRESS:
- return label_address_to_firm(&expression->label_address);
-
- case EXPR_ERROR:
- return error_to_firm(expression);
- }
- panic("invalid expression found");
+ switch (expr->kind) {
+ 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_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_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_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_STRING_LITERAL: return string_to_firm(&expr->base.pos, "str.%u", &expr->string_literal.value);
+
+ case EXPR_ERROR: break;
+ }
+ panic("invalid expression");
}
/**
}
if (is_constant_expression(expression) == EXPR_CLASS_CONSTANT) {
- bool const constant_folding_old = constant_folding;
- constant_folding = true;
- ir_node *res = _expression_to_firm(expression);
- constant_folding = constant_folding_old;
- ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- assert(is_Const(res));
- return create_Const_from_bool(mode, !is_Const_null(res));
+ return new_Const(fold_constant_to_tarval(expression));
}
/* we have to produce a 0/1 from the mode_b expression */
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.pos);
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)
+static ir_node *create_condition_evaluation(expression_t const *const expression, jump_target *const true_target, jump_target *const false_target)
{
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);
+ create_condition_evaluation(unary_expression->value, false_target, true_target);
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);
+ jump_target extra_target;
+ init_jump_target(&extra_target, NULL);
+ create_condition_evaluation(expression->binary.left, &extra_target, false_target);
+ if (enter_jump_target(&extra_target))
+ create_condition_evaluation(expression->binary.right, true_target, false_target);
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);
+ jump_target extra_target;
+ init_jump_target(&extra_target, NULL);
+ create_condition_evaluation(expression->binary.left, true_target, &extra_target);
+ if (enter_jump_target(&extra_target))
+ create_condition_evaluation(expression->binary.right, true_target, false_target);
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);
+ ir_node *cond_expr = _expression_to_firm(expression);
+ if (is_Const(cond_expr)) {
+ if (tarval_is_null(get_Const_tarval(cond_expr))) {
+ jump_to_target(false_target);
+ } else {
+ jump_to_target(true_target);
+ }
+ } else {
+ dbg_info *dbgi = get_dbg_info(&expression->base.pos);
+ 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);
+ add_pred_to_jump_target(true_target, true_proj);
+ add_pred_to_jump_target(false_target, false_proj);
+ }
set_unreachable_now();
return cond_expr;
}
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;
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) {
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;
{
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);
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;
+ 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);
+ }
+ }
+
ir_node *value = expression_to_firm(expr);
- ir_mode *mode = get_ir_mode_storage(type);
- value = create_conv(NULL, value, mode);
+ if (!is_type_compound(type)) {
+ ir_mode *mode = get_ir_mode_storage(type);
+ value = create_conv(NULL, value, mode);
+ }
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);
}
}
if (sub_initializer->kind == INITIALIZER_VALUE) {
- /* we might have to descend into types until we're at a scalar
- * type */
+ 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) {
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(
{
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);
return create_ir_initializer_value(&initializer->value);
case INITIALIZER_DESIGNATOR:
- panic("unexpected designator initializer found");
+ panic("unexpected designator initializer");
}
panic("unknown 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: {
}
}
- panic("invalid IR_INITIALIZER found");
+ panic("invalid ir_initializer");
}
static void create_dynamic_initializer(ir_initializer_t *initializer,
{
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;
type_qualifiers_t tq = get_type_qualifier(type, true);
if (initializer->kind == INITIALIZER_VALUE) {
- initializer_value_t *initializer_value = &initializer->value;
- dbg_info *dbgi = get_dbg_info(&entity->base.source_position);
- expression_t *value = initializer_value->value;
- type_t *init_type = value->base.type;
- type_t *skipped = skip_typeref(init_type);
+ expression_t * value = initializer->value.value;
+ type_t *const init_type = skip_typeref(value->base.type);
- if (!is_type_scalar(skipped)) {
+ if (!is_type_scalar(init_type)) {
/* skip convs */
while (value->kind == EXPR_UNARY_CAST)
value = value->unary.value;
goto have_initializer;
}
- ir_node *node = expression_to_firm(initializer_value->value);
-
- ir_mode *mode = get_ir_mode_storage(init_type);
+ ir_node * node = expression_to_firm(value);
+ dbg_info *const dbgi = get_dbg_info(&entity->base.pos);
+ ir_mode *const mode = get_ir_mode_storage(init_type);
node = create_conv(dbgi, node, mode);
- node = do_strict_conv(dbgi, node);
if (declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
set_value(entity->variable.v.value_number, node);
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);
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) || type->base.qualifiers & TYPE_QUALIFIER_VOLATILE;
+}
+
/**
* Creates a Firm local variable from a declaration.
*/
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;
+ 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)
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")];
set_entity_ld_ident(irentity, id);
set_entity_visibility(irentity, ir_visibility_local);
- ir_graph *const old_current_ir_graph = current_ir_graph;
- current_ir_graph = get_const_code_irg();
+ if (entity->variable.initializer == NULL) {
+ ir_initializer_t *null_init = get_initializer_null();
+ set_entity_initializer(irentity, null_init);
+ }
+ 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 void return_statement_to_firm(return_statement_t *statement)
+static ir_node *return_statement_to_firm(return_statement_t *statement)
{
if (!currently_reachable())
- return;
+ return NULL;
- dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
- type_t *type = current_function_entity->declaration.type;
- ir_type *func_irtype = get_ir_type(type);
-
- ir_node *in[1];
- int in_len;
- if (get_method_n_ress(func_irtype) > 0) {
- ir_type *res_type = get_method_res_type(func_irtype, 0);
-
- if (statement->value != NULL) {
- ir_node *node = expression_to_firm(statement->value);
- if (!is_compound_type(res_type)) {
- type_t *ret_value_type = statement->value->base.type;
- ir_mode *mode = get_ir_mode_storage(ret_value_type);
- node = create_conv(dbgi, node, mode);
- node = do_strict_conv(dbgi, node);
- }
- in[0] = node;
+ 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;
+
+ 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);
} else {
- ir_mode *mode;
- if (is_compound_type(res_type)) {
- mode = mode_P_data;
- } else {
- mode = get_type_mode(res_type);
- }
- in[0] = new_Unknown(mode);
+ res = new_Unknown(mode);
}
in_len = 1;
} else {
- /* build return_value for its side effects */
- if (statement->value != NULL) {
- expression_to_firm(statement->value);
- }
in_len = 0;
}
- ir_node *store = get_store();
- ir_node *ret = new_d_Return(dbgi, store, in_len, in);
+ ir_node *const in[1] = { res };
+ ir_node *const store = get_store();
+ ir_node *const ret = new_d_Return(dbgi, store, in_len, in);
ir_node *end_block = get_irg_end_block(current_ir_graph);
add_immBlock_pred(end_block, ret);
set_unreachable_now();
+ return NULL;
}
static ir_node *expression_statement_to_firm(expression_statement_t *statement)
return expression_to_firm(statement->expression);
}
+static void create_local_declarations(entity_t*);
+
static ir_node *compound_statement_to_firm(compound_statement_t *compound)
{
- entity_t *entity = compound->scope.entities;
- for ( ; entity != NULL; entity = entity->base.next) {
- if (!is_declaration(entity))
- continue;
-
- create_local_declaration(entity);
- }
+ create_local_declarations(compound->scope.entities);
ir_node *result = NULL;
statement_t *statement = compound->statements;
for ( ; statement != NULL; statement = statement->base.next) {
- if (statement->base.next == NULL
- && statement->kind == STATEMENT_EXPRESSION) {
- result = expression_statement_to_firm(
- &statement->expression);
- break;
- }
- statement_to_firm(statement);
+ result = statement_to_firm(statement);
}
return result;
static void create_global_variable(entity_t *entity)
{
- ir_linkage linkage = IR_LINKAGE_DEFAULT;
- ir_visibility visibility = ir_visibility_default;
- ir_entity *irentity;
+ ir_linkage linkage = IR_LINKAGE_DEFAULT;
+ ir_visibility visibility = ir_visibility_external;
+ storage_class_tag_t storage
+ = (storage_class_tag_t)entity->declaration.storage_class;
+ decl_modifiers_t modifiers = entity->declaration.modifiers;
assert(entity->kind == ENTITY_VARIABLE);
- switch ((storage_class_tag_t)entity->declaration.storage_class) {
+ switch (storage) {
case STORAGE_CLASS_EXTERN: visibility = ir_visibility_external; break;
case STORAGE_CLASS_STATIC: visibility = ir_visibility_local; break;
- case STORAGE_CLASS_NONE:
- visibility = ir_visibility_default;
- /* uninitialized globals get merged in C */
- if (entity->variable.initializer == NULL)
- linkage |= IR_LINKAGE_MERGE;
- break;
+ case STORAGE_CLASS_NONE: visibility = ir_visibility_external; break;
case STORAGE_CLASS_TYPEDEF:
case STORAGE_CLASS_AUTO:
case STORAGE_CLASS_REGISTER:
panic("invalid storage class for global var");
}
+ /* "common" symbols */
+ if (storage == STORAGE_CLASS_NONE
+ && entity->variable.initializer == NULL
+ && !entity->variable.thread_local
+ && (modifiers & DM_WEAK) == 0) {
+ linkage |= IR_LINKAGE_MERGE;
+ }
+
ir_type *var_type = get_glob_type();
if (entity->variable.thread_local) {
var_type = get_tls_type();
- /* LINKAGE_MERGE not supported by current linkers */
- linkage &= ~IR_LINKAGE_MERGE;
}
create_variable_entity(entity, DECLARATION_KIND_GLOBAL_VARIABLE, var_type);
- irentity = entity->variable.v.entity;
+ ir_entity *irentity = entity->variable.v.entity;
add_entity_linkage(irentity, linkage);
set_entity_visibility(irentity, visibility);
+ if (entity->variable.initializer == NULL
+ && storage != STORAGE_CLASS_EXTERN) {
+ ir_initializer_t *null_init = get_initializer_null();
+ set_entity_initializer(irentity, null_init);
+ }
}
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);
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;
case STORAGE_CLASS_TYPEDEF:
break;
}
- panic("invalid storage class found");
+ panic("invalid storage class");
+}
+
+static void create_local_declarations(entity_t *e)
+{
+ for (; e; e = e->base.next) {
+ if (is_declaration(e))
+ create_local_declaration(e);
+ }
}
static void initialize_local_declaration(entity_t *entity)
panic("invalid declaration kind");
}
-static void declaration_statement_to_firm(declaration_statement_t *statement)
+static ir_node *declaration_statement_to_firm(declaration_statement_t *statement)
{
entity_t *entity = statement->declarations_begin;
if (entity == NULL)
- return;
+ return NULL;
entity_t *const last = statement->declarations_end;
for ( ;; entity = entity->base.next) {
if (entity == last)
break;
}
+
+ return NULL;
}
-static void if_statement_to_firm(if_statement_t *statement)
+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())
+ create_condition_evaluation(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);
- }
+ jump_to_target(&exit_target);
- /* 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);
- }
+ enter_jump_target(&exit_target);
+ return NULL;
}
-/* Create a jump node which jumps into target_block, if the current block is
- * reachable. */
-static void jump_if_reachable(ir_node *const target_block)
+static ir_node *do_while_statement_to_firm(do_while_statement_t *statement)
{
- ir_node *const pred = currently_reachable() ? new_Jmp() : new_Bad(mode_X);
- add_immBlock_pred(target_block, pred);
-}
+ create_local_declarations(statement->scope.entities);
-static void while_statement_to_firm(while_statement_t *statement)
-{
- /* Create the header block */
- ir_node *const header_block = new_immBlock();
- jump_if_reachable(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;
-}
-
-static ir_node *get_break_label(void)
-{
- if (break_label == NULL) {
- break_label = new_immBlock();
- }
- return break_label;
-}
-
-static void do_while_statement_to_firm(do_while_statement_t *statement)
-{
- /* create the header block */
- ir_node *header_block = new_immBlock();
-
- /* the loop body */
- ir_node *body_block = new_immBlock();
- jump_if_reachable(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))
+ create_condition_evaluation(statement->condition, &body_target, &break_target);
+ enter_jump_target(&body_target);
+ }
+ enter_jump_target(&break_target);
+
+ POP_CONTINUE();
+ POP_BREAK();
+ return NULL;
}
-static void for_statement_to_firm(for_statement_t *statement)
+static ir_node *for_statement_to_firm(for_statement_t *statement)
{
- /* create declarations */
- entity_t *entity = statement->scope.entities;
- for ( ; entity != NULL; entity = entity->base.next) {
- if (!is_declaration(entity))
- continue;
-
- create_local_declaration(entity);
- }
+ create_local_declarations(statement->scope.entities);
if (currently_reachable()) {
- entity = statement->scope.entities;
+ entity_t *entity = statement->scope.entities;
for ( ; entity != NULL; entity = entity->base.next) {
if (!is_declaration(entity))
continue;
}
/* Create the header block */
- ir_node *const header_block = new_immBlock();
- jump_if_reachable(header_block);
+ jump_target header_target;
+ init_jump_target(&header_target, NULL);
+ jump_to_target(&header_target);
+ enter_immature_jump_target(&header_target);
+ keep_loop();
- /* 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;
-
- 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);
+ create_condition_evaluation(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);
+ if (step && enter_jump_target(&continue_target)) {
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);
+ 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;
-}
-
-static void create_jump_statement(const statement_t *statement,
- ir_node *target_block)
-{
- if (!currently_reachable())
- return;
- dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
- ir_node *jump = new_d_Jmp(dbgi);
- add_immBlock_pred(target_block, jump);
+ enter_jump_target(&header_target);
+ enter_jump_target(&break_target);
- set_unreachable_now();
+ POP_CONTINUE();
+ POP_BREAK();
+ return NULL;
}
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;
}
return res;
}
-static void switch_statement_to_firm(switch_statement_t *statement)
+static ir_node *switch_statement_to_firm(switch_statement_t *statement)
{
- ir_node *first_block = NULL;
- 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()) {
unsigned n_outs = (unsigned)ir_switch_table_get_n_entries(table) + 1;
switch_node = new_d_Switch(dbgi, expression, n_outs, table);
- first_block = get_cur_block();
}
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);
+ jump_to_target(&break_target);
- jump_if_reachable(get_break_label());
-
- if (!saw_default_label && first_block != NULL) {
- set_cur_block(first_block);
+ 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 void case_label_to_firm(const case_label_statement_t *statement)
+static ir_node *case_label_to_firm(const case_label_statement_t *statement)
{
- if (statement->is_empty_range)
- return;
+ 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);
}
- statement_to_firm(statement->statement);
+ return statement_to_firm(statement->statement);
}
-static void label_to_firm(const label_statement_t *statement)
+static ir_node *label_to_firm(const label_statement_t *statement)
{
- ir_node *block = get_label_block(statement->label);
- jump_if_reachable(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();
+ }
- statement_to_firm(statement->statement);
+ return statement_to_firm(statement->statement);
}
-static void 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;
-
- 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 void goto_to_firm(const goto_statement_t *statement)
+static ir_node *computed_goto_to_firm(computed_goto_statement_t const *const statement)
{
- if (!currently_reachable())
- return;
-
- ir_node *block = get_label_block(statement->label);
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(block, jmp);
-
- set_unreachable_now();
+ if (currently_reachable()) {
+ ir_node *const op = expression_to_firm(statement->expression);
+ ARR_APP1(ir_node*, ijmp_ops, op);
+ jump_to_target(&ijmp_target);
+ set_unreachable_now();
+ }
+ return NULL;
}
-static void asm_statement_to_firm(const asm_statement_t *statement)
+static ir_node *asm_statement_to_firm(const asm_statement_t *statement)
{
- bool needs_memory = false;
-
- if (statement->is_volatile) {
- needs_memory = true;
- }
-
- size_t n_clobbers = 0;
- asm_clobber_t *clobber = statement->clobbers;
+ 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;
}
= 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);
}
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;
= 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;
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;
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);
set_value_for_expression_addr(out_expr, proj, addr);
}
+
+ return NULL;
}
-static void ms_try_statement_to_firm(ms_try_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 void leave_statement_to_firm(leave_statement_t *statement)
+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;
}
/**
* Transform a statement.
*/
-static void statement_to_firm(statement_t *statement)
+static ir_node *statement_to_firm(statement_t *const stmt)
{
#ifndef NDEBUG
- assert(!statement->base.transformed);
- statement->base.transformed = true;
+ assert(!stmt->base.transformed);
+ stmt->base.transformed = true;
#endif
- switch (statement->kind) {
- case STATEMENT_ERROR:
- panic("error statement found");
- case STATEMENT_EMPTY:
- /* nothing */
- return;
- case STATEMENT_COMPOUND:
- compound_statement_to_firm(&statement->compound);
- return;
- case STATEMENT_RETURN:
- return_statement_to_firm(&statement->returns);
- return;
- case STATEMENT_EXPRESSION:
- expression_statement_to_firm(&statement->expression);
- return;
- case STATEMENT_IF:
- if_statement_to_firm(&statement->ifs);
- return;
- case STATEMENT_WHILE:
- while_statement_to_firm(&statement->whiles);
- return;
- case STATEMENT_DO_WHILE:
- do_while_statement_to_firm(&statement->do_while);
- return;
- case STATEMENT_DECLARATION:
- declaration_statement_to_firm(&statement->declaration);
- return;
- case STATEMENT_BREAK:
- create_jump_statement(statement, get_break_label());
- return;
- case STATEMENT_CONTINUE:
- create_jump_statement(statement, continue_label);
- return;
- case STATEMENT_SWITCH:
- switch_statement_to_firm(&statement->switchs);
- return;
- case STATEMENT_CASE_LABEL:
- case_label_to_firm(&statement->case_label);
- return;
- case STATEMENT_FOR:
- for_statement_to_firm(&statement->fors);
- return;
- case STATEMENT_LABEL:
- label_to_firm(&statement->label);
- return;
- case STATEMENT_COMPUTED_GOTO:
- computed_goto_to_firm(&statement->computed_goto);
- return;
- case STATEMENT_GOTO:
- goto_to_firm(&statement->gotos);
- return;
- case STATEMENT_ASM:
- asm_statement_to_firm(&statement->asms);
- return;
- case STATEMENT_MS_TRY:
- ms_try_statement_to_firm(&statement->ms_try);
- return;
- case STATEMENT_LEAVE:
- leave_statement_to_firm(&statement->leave);
- return;
+ switch (stmt->kind) {
+ case STATEMENT_ASM: return asm_statement_to_firm( &stmt->asms);
+ case STATEMENT_CASE_LABEL: return case_label_to_firm( &stmt->case_label);
+ case STATEMENT_COMPOUND: return compound_statement_to_firm( &stmt->compound);
+ case STATEMENT_COMPUTED_GOTO: return computed_goto_to_firm( &stmt->computed_goto);
+ case STATEMENT_DECLARATION: return declaration_statement_to_firm(&stmt->declaration);
+ case STATEMENT_DO_WHILE: return do_while_statement_to_firm( &stmt->do_while);
+ 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);
+
+ {
+ 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");
}
panic("statement not implemented");
}
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 (!address_taken && is_type_scalar(type))
+ if ((entity->kind == ENTITY_VARIABLE || entity->kind == ENTITY_PARAMETER) &&
+ !var_needs_entity(&entity->variable))
++count;
}
return count;
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;
}
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;
+ = new_d_parameter_entity(frame_type, n, param_irtype, dbgi);
+ parameter->declaration.kind = DECLARATION_KIND_PARAMETER_ENTITY;
+ parameter->variable.v.entity = param;
continue;
}
ir_mode *param_mode = get_type_mode(param_irtype);
long pn = n;
- ir_node *value = new_r_Proj(args, param_mode, pn);
+ ir_node *value = new_rd_Proj(dbgi, 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;
+ parameter->declaration.kind = DECLARATION_KIND_PARAMETER;
+ parameter->variable.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);
+ set_value(parameter->variable.v.value_number, value);
}
}
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.
*
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;
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);
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);
if (currently_reachable()) {
type_t *type = skip_typeref(entity->declaration.type);
assert(is_type_function(type));
- const function_type_t *func_type = &type->function;
- const type_t *return_type
- = skip_typeref(func_type->return_type);
+ type_t *const return_type = skip_typeref(type->function.return_type);
ir_node *ret;
- if (is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
+ if (is_type_void(return_type)) {
ret = new_Return(get_store(), 0, NULL);
} else {
- ir_mode *mode;
- if (is_type_scalar(return_type)) {
- mode = get_ir_mode_storage(func_type->return_type);
- } else {
- mode = mode_P_data;
- }
+ ir_mode *const mode = get_ir_mode_storage(return_type);
ir_node *in[1];
/* ยง5.1.2.2.3 main implicitly returns 0 */
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);
return;
ir_types_initialized = 1;
- ir_type_int = get_ir_type(type_int);
- 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_void = get_ir_type(type_void);
+ ir_type_char = get_ir_type(type_char);
be_params = be_get_backend_param();
mode_float_arithmetic = be_params->mode_float_arithmetic;
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);
}
}
+static const char *get_cwd(void)
+{
+ static char buf[1024];
+ if (buf[0] == '\0') {
+ return getcwd(buf, sizeof(buf));
+ }
+ return buf;
+}
+
void translation_unit_to_firm(translation_unit_t *unit)
{
+ if (c_mode & _CXX) {
+ be_dwarf_set_source_language(DW_LANG_C_plus_plus);
+ } else if (c_mode & _C99) {
+ be_dwarf_set_source_language(DW_LANG_C99);
+ } else if (c_mode & _C89) {
+ be_dwarf_set_source_language(DW_LANG_C89);
+ } else {
+ be_dwarf_set_source_language(DW_LANG_C);
+ }
+ 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;
projects / cparser / blobdiff