#include "diagnostic.h"
#include "lang_features.h"
#include "types.h"
+#include "type_hash.h"
+#include "mangle.h"
#include "walk_statements.h"
#include "warning.h"
#include "entitymap_t.h"
#include "driver/firm_opt.h"
#include "driver/firm_cmdline.h"
-/* some idents needed for name mangling */
-static ident *id_underscore;
-static ident *id_imp;
-
static ir_type *ir_type_const_char;
static ir_type *ir_type_wchar_t;
static ir_type *ir_type_void;
static ir_node *current_funcsig;
static switch_statement_t *current_switch;
static ir_graph *current_function;
+static translation_unit_t *current_translation_unit;
static entitymap_t entitymap;
DECLARATION_KIND_GLOBAL_VARIABLE,
DECLARATION_KIND_LOCAL_VARIABLE,
DECLARATION_KIND_LOCAL_VARIABLE_ENTITY,
+ DECLARATION_KIND_PARAMETER,
+ DECLARATION_KIND_PARAMETER_ENTITY,
DECLARATION_KIND_FUNCTION,
DECLARATION_KIND_COMPOUND_MEMBER,
DECLARATION_KIND_INNER_FUNCTION
} declaration_kind_t;
-static ir_type *get_ir_type(type_t *type);
+static ir_mode *get_ir_mode(type_t *type);
static ir_type *get_ir_type_incomplete(type_t *type);
static void enqueue_inner_function(entity_t *entity)
ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
{
- const variable_t *variable = get_irg_loc_description(irg, pos);
+ const entity_t *entity = get_irg_loc_description(irg, pos);
- if (variable != NULL) {
- warningf(&variable->base.base.source_position,
- "variable '%#T' might be used uninitialized",
- variable->base.type, variable->base.base.symbol);
+ if (entity != NULL) {
+ warningf(&entity->base.source_position,
+ "%s '%#T' might be used uninitialized",
+ get_entity_kind_name(entity->kind),
+ entity->declaration.type, entity->base.symbol);
}
return new_r_Unknown(irg, mode);
}
static ir_node *_expression_to_firm(const expression_t *expression);
static ir_node *expression_to_firm(const expression_t *expression);
-static inline ir_mode *get_ir_mode(type_t *type);
static void create_local_declaration(entity_t *entity);
static ir_mode *init_atomic_ir_mode(atomic_type_kind_t kind)
ir_mode_sort sort;
unsigned bit_size = size * 8;
bool is_signed = (flags & ATOMIC_TYPE_FLAG_SIGNED) != 0;
+ unsigned modulo_shift;
ir_mode_arithmetic arithmetic;
if (flags & ATOMIC_TYPE_FLAG_INTEGER) {
bit_size);
sort = irms_int_number;
arithmetic = irma_twos_complement;
+ modulo_shift = bit_size < machine_size ? machine_size : bit_size;
} else {
assert(flags & ATOMIC_TYPE_FLAG_FLOAT);
snprintf(name, sizeof(name), "F%u", bit_size);
sort = irms_float_number;
arithmetic = irma_ieee754;
+ modulo_shift = 0;
}
- /* note: modulo_shift is 0, as in C it's undefined anyway to shift
- * a too big amount */
return new_ir_mode(name, sort, bit_size, is_signed, arithmetic,
- 0);
+ modulo_shift);
}
return NULL;
mode_uint = atomic_modes[ATOMIC_TYPE_UINT];
/* there's no real void type in firm */
- atomic_modes[ATOMIC_TYPE_VOID] = mode_int;
+ atomic_modes[ATOMIC_TYPE_VOID] = atomic_modes[ATOMIC_TYPE_CHAR];
/* initialize pointer modes */
char name[64];
/* just a pointer to the function */
return get_mode_size_bytes(mode_P_code);
case TYPE_POINTER:
+ case TYPE_REFERENCE:
return get_mode_size_bytes(mode_P_data);
case TYPE_ARRAY:
return get_array_type_size(&type->array);
panic("Trying to determine size of invalid type");
}
+static ir_node *get_vla_size(array_type_t *const type)
+{
+ ir_node *size_node = type->size_node;
+ if (size_node == NULL) {
+ size_node = expression_to_firm(type->size_expression);
+ type->size_node = size_node;
+ }
+ return size_node;
+}
+
static ir_node *get_type_size(type_t *type)
{
type = skip_typeref(type);
if (is_type_array(type) && type->array.is_vla) {
- ir_node *size_node = type->array.size_node;
- if (size_node == NULL) {
- size_node = expression_to_firm(type->array.size_expression);
- assert(!is_Const(size_node));
- type->array.size_node = size_node;
- }
-
+ ir_node *size_node = get_vla_size(&type->array);
ir_node *elem_size = get_type_size(type->array.element_type);
ir_mode *mode = get_irn_mode(size_node);
ir_node *real_size = new_d_Mul(NULL, size_node, elem_size, mode);
/* Hmm, leave default, not accepted by the parser yet. */
break;
}
+
return irtype;
}
return ir_type;
}
+static ir_type *create_reference_type(reference_type_t *type)
+{
+ type_t *refers_to = type->refers_to;
+ ir_type *ir_refers_to = get_ir_type_incomplete(refers_to);
+ ir_type *ir_type = new_type_pointer(id_unique("reference.%u"),
+ ir_refers_to, mode_P_data);
+
+ return ir_type;
+}
+
static ir_type *create_array_type(array_type_t *type)
{
type_t *element_type = type->element_type;
snprintf(name, sizeof(name), "I%u", size);
ident *id = new_id_from_str(name);
dbg_info *dbgi = get_dbg_info(&builtin_source_position);
- res = new_d_type_primitive(mangle_u(get_type_ident(base_tp), id), mode, dbgi);
+ res = new_d_type_primitive(id_mangle_u(get_type_ident(base_tp), id), mode, dbgi);
set_primitive_base_type(res, base_tp);
return res;
snprintf(name, sizeof(name), "U%u", size);
ident *id = new_id_from_str(name);
dbg_info *dbgi = get_dbg_info(&builtin_source_position);
- res = new_d_type_primitive(mangle_u(get_type_ident(base_tp), id), mode, dbgi);
+ res = new_d_type_primitive(id_mangle_u(get_type_ident(base_tp), id), mode, dbgi);
set_primitive_base_type(res, base_tp);
return res;
}
}
-static ir_type *get_ir_type(type_t *type)
+ir_type *get_ir_type(type_t *type)
{
assert(type != NULL);
case TYPE_POINTER:
firm_type = create_pointer_type(&type->pointer);
break;
+ case TYPE_REFERENCE:
+ firm_type = create_reference_type(&type->reference);
+ break;
case TYPE_ARRAY:
firm_type = create_array_type(&type->array);
break;
return firm_type;
}
-static inline ir_mode *get_ir_mode(type_t *type)
+ir_mode *get_ir_mode(type_t *type)
{
ir_type *irtype = get_ir_type(type);
static ident *rts_idents[sizeof(rts_data) / sizeof(rts_data[0])];
-/**
- * Mangles an entity linker (ld) name for win32 usage.
- *
- * @param ent the entity to be mangled
- * @param declaration the declaration
- */
-static ident *create_ld_ident_win32(ir_entity *irentity, entity_t *entity)
-{
- ident *id;
-
- if (is_Method_type(get_entity_type(irentity)))
- id = decorate_win32_c_fkt(irentity, get_entity_ident(irentity));
- else {
- /* always add an underscore in win32 */
- id = mangle(id_underscore, get_entity_ident(irentity));
- }
-
- assert(is_declaration(entity));
- decl_modifiers_t decl_modifiers = entity->declaration.modifiers;
- if (decl_modifiers & DM_DLLIMPORT) {
- /* add prefix for imported symbols */
- id = mangle(id_imp, id);
- }
- return id;
-}
-
-/**
- * Mangles an entity linker (ld) name for Linux ELF usage.
- *
- * @param ent the entity to be mangled
- * @param declaration the declaration
- */
-static ident *create_ld_ident_linux_elf(ir_entity *irentity, entity_t *entity)
-{
- (void) entity;
- return get_entity_ident(irentity);
-}
-
-/**
- * Mangles an entity linker (ld) name for Mach-O usage.
- *
- * @param ent the entity to be mangled
- * @param declaration the declaration
- */
-static ident *create_ld_ident_macho(ir_entity *irentity, entity_t *entity)
-{
- (void) entity;
- ident *id = mangle(id_underscore, get_entity_ident(irentity));
- return id;
-}
-
-typedef ident* (*create_ld_ident_func)(ir_entity *irentity, entity_t *entity);
-create_ld_ident_func create_ld_ident = create_ld_ident_linux_elf;
+static ident* (*create_ld_ident)(entity_t*) = create_name_linux_elf;
/**
* Handle GNU attributes for entities
}
}
+static bool is_main(entity_t *entity)
+{
+ static symbol_t *sym_main = NULL;
+ if (sym_main == NULL) {
+ sym_main = symbol_table_insert("main");
+ }
+
+ if (entity->base.symbol != sym_main)
+ return false;
+ /* must be in outermost scope */
+ if (entity->base.parent_scope != ¤t_translation_unit->scope)
+ return false;
+
+ return true;
+}
+
/**
* Creates an entity representing a function.
*
return entity->function.entity;
}
+ 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 = typehash_insert(new_type);
+ if (type != new_type) {
+ obstack_free(type_obst, new_type);
+ }
+ entity->declaration.type = type;
+ }
+ }
+
symbol_t *symbol = entity->base.symbol;
ident *id = new_id_from_str(symbol->string);
dbg_info *const dbgi = get_dbg_info(&entity->base.source_position);
irentity = new_d_entity(global_type, id, ir_type_method, dbgi);
- set_entity_ld_ident(irentity, create_ld_ident(irentity, entity));
+ set_entity_ld_ident(irentity, create_ld_ident(entity));
handle_gnu_attributes_ent(irentity, entity);
tv = new_tarval_from_str(buf, len, mode);
}
- return new_d_Const(dbgi, mode, tv);
+ return new_d_Const(dbgi, tv);
}
/**
size_t len = snprintf(buf, sizeof(buf), "%lld", v);
tarval *tv = new_tarval_from_str(buf, len, mode);
- return new_d_Const(dbgi, mode, tv);
+ return new_d_Const(dbgi, tv);
}
/**
size_t len = snprintf(buf, sizeof(buf), "%lld", v);
tarval *tv = new_tarval_from_str(buf, len, mode);
- return new_d_Const(dbgi, mode, tv);
+ return new_d_Const(dbgi, tv);
}
/**
ir_node *const load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
ir_node *const load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
- if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE && !is_Bad(load)) {
set_Load_volatility(load, volatility_is_volatile);
}
assert(entity->declaration.kind == DECLARATION_KIND_GLOBAL_VARIABLE);
ir_entity *const irentity = entity->variable.v.entity;
- switch ((storage_class_tag_t) entity->declaration.storage_class) {
- case STORAGE_CLASS_THREAD:
- case STORAGE_CLASS_THREAD_EXTERN:
- case STORAGE_CLASS_THREAD_STATIC: {
- ir_node *const no_mem = new_NoMem();
- ir_node *const tls = get_irg_tls(current_ir_graph);
- return new_d_simpleSel(dbgi, no_mem, tls, irentity);
- }
-
- default:
- return create_symconst(dbgi, mode_P_data, irentity);
+ if (entity->variable.thread_local) {
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const tls = get_irg_tls(current_ir_graph);
+ return new_d_simpleSel(dbgi, no_mem, tls, irentity);
+ } else {
+ return create_symconst(dbgi, mode_P_data, irentity);
}
}
return value;
if (dest_mode == mode_b) {
- ir_node *zero = new_Const(value_mode, get_mode_null(value_mode));
+ ir_node *zero = new_Const(get_mode_null(value_mode));
ir_node *cmp = new_d_Cmp(dbgi, value, zero);
ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pn_Cmp_Lg);
return proj;
/* make sure the type is constructed */
(void) get_ir_type(type);
- ir_mode *const mode = get_ir_mode(type);
- return new_Const(mode, entity->enum_value.tv);
+ return new_Const(entity->enum_value.tv);
}
static ir_node *reference_expression_to_firm(const reference_expression_t *ref)
ir_mode *const mode = get_ir_mode(type);
return get_value(entity->variable.v.value_number, mode);
}
+ case DECLARATION_KIND_PARAMETER: {
+ ir_mode *const mode = get_ir_mode(type);
+ return get_value(entity->parameter.v.value_number, mode);
+ }
case DECLARATION_KIND_FUNCTION: {
ir_mode *const mode = get_ir_mode(type);
return create_symconst(dbgi, mode, entity->function.entity);
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;
switch((declaration_kind_t) entity->declaration.kind) {
case DECLARATION_KIND_UNKNOWN:
break;
+ case DECLARATION_KIND_PARAMETER:
case DECLARATION_KIND_LOCAL_VARIABLE:
/* you can store to a local variable (so we don't panic but return NULL
* as an indicator for no real address) */
return 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 sel;
+ }
case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
return entity->variable.v.vla_base;
case T___builtin_infl: {
ir_mode *mode = get_ir_mode(function_type->function.return_type);
tarval *tv = get_mode_infinite(mode);
- ir_node *res = new_d_Const(dbgi, mode, tv);
+ ir_node *res = new_d_Const(dbgi, tv);
return res;
}
case T___builtin_nan:
assert(is_type_function(function_type));
ir_mode *mode = get_ir_mode(function_type->function.return_type);
tarval *tv = get_mode_NAN(mode);
- ir_node *res = new_d_Const(dbgi, mode, tv);
+ ir_node *res = new_d_Const(dbgi, tv);
return res;
}
+ case T___builtin_expect: {
+ expression_t *argument = call->arguments->expression;
+ return _expression_to_firm(argument);
+ }
case T___builtin_va_end:
+ /* evaluate the argument of va_end for its side effects */
+ _expression_to_firm(call->arguments->expression);
return NULL;
default:
- panic("Unsupported builtin found\n");
+ panic("unsupported builtin found");
}
}
if (is_type_scalar(type)) {
ir_node *store = new_d_Store(dbgi, memory, addr, value);
ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
- if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE)
+ if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE && !is_Bad(store))
set_Store_volatility(store, volatility_is_volatile);
set_store(store_mem);
} else {
int bitsize = get_mode_size_bits(get_type_mode(entity_type));
tarval *mask = create_bitfield_mask(mode, 0, bitsize);
- ir_node *mask_node = new_d_Const(dbgi, mode, mask);
+ ir_node *mask_node = new_d_Const(dbgi, mask);
ir_node *value_masked = new_d_And(dbgi, value, mask_node, mode);
tarval *shiftl = new_tarval_from_long(bitoffset, mode_uint);
- ir_node *shiftcount = new_d_Const(dbgi, mode_uint, shiftl);
+ ir_node *shiftcount = new_d_Const(dbgi, shiftl);
ir_node *value_maskshift = new_d_Shl(dbgi, value_masked, shiftcount, mode);
/* load current value */
ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
tarval *shift_mask = create_bitfield_mask(mode, bitoffset, bitsize);
tarval *inv_mask = tarval_not(shift_mask);
- ir_node *inv_mask_node = new_d_Const(dbgi, mode, inv_mask);
+ ir_node *inv_mask_node = new_d_Const(dbgi, inv_mask);
ir_node *load_res_masked = new_d_And(dbgi, load_res, inv_mask_node, mode);
/* construct new value and store */
set_store(store_mem);
if (set_volatile) {
- set_Load_volatility(load, volatility_is_volatile);
- set_Store_volatility(store, volatility_is_volatile);
+ if (!is_Bad(load))
+ set_Load_volatility(load, volatility_is_volatile);
+ if (!is_Bad(store))
+ set_Store_volatility(store, volatility_is_volatile);
}
}
long shift_bitsl = machine_size - bitoffset - bitsize;
assert(shift_bitsl >= 0);
tarval *tvl = new_tarval_from_long(shift_bitsl, mode_uint);
- ir_node *countl = new_d_Const(dbgi, mode_uint, tvl);
+ ir_node *countl = new_d_Const(dbgi, tvl);
ir_node *shiftl = new_d_Shl(dbgi, load_res, countl, mode_int);
long shift_bitsr = bitoffset + shift_bitsl;
assert(shift_bitsr <= (long) machine_size);
tarval *tvr = new_tarval_from_long(shift_bitsr, mode_uint);
- ir_node *countr = new_d_Const(dbgi, mode_uint, tvr);
+ ir_node *countr = new_d_Const(dbgi, tvr);
ir_node *shiftr;
if (mode_is_signed(mode)) {
shiftr = new_d_Shrs(dbgi, shiftl, countr, mode_int);
if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE) {
set_value(entity->variable.v.value_number, value);
return;
+ } else if (entity->declaration.kind == DECLARATION_KIND_PARAMETER) {
+ set_value(entity->parameter.v.value_number, value);
+ return;
}
}
if (addr == NULL)
addr = expression_to_addr(expression);
+ assert(addr != NULL);
type_t *type = skip_typeref(expression->base.type);
const reference_expression_t *ref = &expression->reference;
entity_t *entity = ref->entity;
- assert(entity->kind == ENTITY_VARIABLE);
+ assert(entity->kind == ENTITY_VARIABLE
+ || entity->kind == ENTITY_PARAMETER);
assert(entity->declaration.kind != DECLARATION_KIND_UNKNOWN);
if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE) {
assert(addr == NULL);
ir_mode *mode = get_ir_mode(expression->base.type);
return get_value(entity->variable.v.value_number, mode);
+ } else if (entity->declaration.kind == DECLARATION_KIND_PARAMETER) {
+ assert(addr == NULL);
+ ir_mode *mode = get_ir_mode(expression->base.type);
+ return get_value(entity->parameter.v.value_number, mode);
}
}
offset = get_type_size(pointer_type->points_to);
} else {
assert(is_type_arithmetic(type));
- offset = new_Const(mode, get_mode_one(mode));
+ offset = new_Const(get_mode_one(mode));
}
ir_node *result;
* produces a 0/1 depending of the value of a mode_b node
*/
static ir_node *produce_condition_result(const expression_t *expression,
- dbg_info *dbgi)
+ ir_mode *mode, dbg_info *dbgi)
{
- ir_mode *mode = get_ir_mode(expression->base.type);
ir_node *cur_block = get_cur_block();
ir_node *one_block = new_immBlock();
- ir_node *one = new_Const(mode, get_mode_one(mode));
+ set_cur_block(one_block);
+ ir_node *one = new_Const(get_mode_one(mode));
ir_node *jmp_one = new_d_Jmp(dbgi);
ir_node *zero_block = new_immBlock();
- ir_node *zero = new_Const(mode, get_mode_null(mode));
+ set_cur_block(zero_block);
+ ir_node *zero = new_Const(get_mode_null(mode));
ir_node *jmp_zero = new_d_Jmp(dbgi);
set_cur_block(cur_block);
static ir_node *adjust_for_pointer_arithmetic(dbg_info *dbgi,
ir_node *value, type_t *type)
{
+ ir_mode *const mode = get_ir_mode(type_ptrdiff_t);
+ assert(is_type_pointer(type));
pointer_type_t *const pointer_type = &type->pointer;
type_t *const points_to = skip_typeref(pointer_type->points_to);
unsigned elem_size = get_type_size_const(points_to);
+ value = create_conv(dbgi, value, mode);
+
/* gcc extension: allow arithmetic with void * and function * */
if ((elem_size == 0 && is_type_atomic(points_to, ATOMIC_TYPE_VOID)) ||
is_type_function(points_to)) {
if (elem_size == 1)
return value;
- value = create_conv(dbgi, value, mode_int);
- ir_node *const cnst = new_Const_long(mode_int, (long)elem_size);
- ir_node *const mul = new_d_Mul(dbgi, value, cnst, mode_int);
+ ir_node *const cnst = new_Const_long(mode, (long)elem_size);
+ ir_node *const mul = new_d_Mul(dbgi, value, cnst, mode);
return mul;
}
default:
normal_node:
- mode = get_irn_mode(right);
+ mode = get_ir_mode(type_right);
left = create_conv(dbgi, left, mode);
break;
}
long val = fold_constant(expression->left);
expression_kind_t ekind = expression->base.kind;
assert(ekind == EXPR_BINARY_LOGICAL_AND || ekind == EXPR_BINARY_LOGICAL_OR);
- if ((ekind == EXPR_BINARY_LOGICAL_AND && val != 0) ||
- (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) {
- return expression_to_firm(expression->right);
+ if (ekind == EXPR_BINARY_LOGICAL_AND) {
+ if (val == 0) {
+ return new_Const(get_mode_null(mode));
+ }
} else {
- return new_Const(mode, get_mode_one(mode));
+ if (val != 0) {
+ return new_Const(get_mode_one(mode));
+ }
+ }
+
+ if (is_constant_expression(expression->right)) {
+ long const valr = fold_constant(expression->left);
+ return valr != 0 ?
+ new_Const(get_mode_one(mode)) :
+ new_Const(get_mode_null(mode));
}
+
+ return produce_condition_result(expression->right, mode, dbgi);
}
- return produce_condition_result((const expression_t*) expression, dbgi);
+ return produce_condition_result((const expression_t*) expression, mode,
+ dbgi);
}
typedef ir_node * (*create_arithmetic_func)(dbg_info *dbgi, ir_node *left,
case EXPR_BINARY_SHIFTLEFT_ASSIGN:
case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
return create_assign_binop(expression);
- case EXPR_BINARY_BUILTIN_EXPECT:
- return _expression_to_firm(expression->left);
default:
panic("TODO binexpr type");
}
static ir_node *array_access_addr(const array_access_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *base_addr = expression_to_firm(expression->array_ref);
- ir_node *offset = expression_to_firm(expression->index);
-
- type_t *offset_type = skip_typeref(expression->index->base.type);
- ir_mode *mode;
- if (is_type_signed(offset_type)) {
- mode = get_ir_mode(type_ssize_t);
- } else {
- mode = get_ir_mode(type_size_t);
- }
- offset = create_conv(dbgi, offset, mode);
-
- type_t *ref_type = skip_typeref(expression->array_ref->base.type);
- assert(is_type_pointer(ref_type));
- pointer_type_t *pointer_type = &ref_type->pointer;
-
- ir_node *elem_size_const = get_type_size(pointer_type->points_to);
- elem_size_const = create_conv(dbgi, elem_size_const, mode);
- ir_node *real_offset = new_d_Mul(dbgi, offset, elem_size_const,
- mode);
- ir_node *result = new_d_Add(dbgi, base_addr, real_offset, mode_P_data);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_node *base_addr = expression_to_firm(expression->array_ref);
+ ir_node *offset = expression_to_firm(expression->index);
+ type_t *ref_type = skip_typeref(expression->array_ref->base.type);
+ ir_node *real_offset = adjust_for_pointer_arithmetic(dbgi, offset, ref_type);
+ ir_node *result = new_d_Add(dbgi, base_addr, real_offset, mode_P_data);
return result;
}
tarval *tv = new_tarval_from_long(offset, mode);
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- return new_d_Const(dbgi, mode, tv);
+ return new_d_Const(dbgi, tv);
}
static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi,
current_ir_graph = old_current_ir_graph;
if (!is_Const(cnst)) {
- panic("couldn't fold constant\n");
+ panic("couldn't fold constant");
}
tarval *tv = get_Const_tarval(cnst);
if (!tarval_is_long(tv)) {
- panic("result of constant folding is not integer\n");
+ panic("result of constant folding is not integer");
}
constant_folding = constant_folding_old;
/* create the true block */
ir_node *true_block = new_immBlock();
+ set_cur_block(true_block);
ir_node *true_val = expression->true_expression != NULL ?
expression_to_firm(expression->true_expression) : NULL;
/* create the false block */
ir_node *false_block = new_immBlock();
+ set_cur_block(false_block);
ir_node *false_val = expression_to_firm(expression->false_expression);
ir_node *false_jmp = new_Jmp();
} else {
/* Condition ended with a short circuit (&&, ||, !) operation.
* Generate a "1" as value for the true branch. */
- ir_mode *const mode = mode_Is;
- true_val = new_Const(mode, get_mode_one(mode));
+ true_val = new_Const(get_mode_one(mode_Is));
}
}
mature_immBlock(true_block);
entity_t *entry = expression->compound_entry;
assert(entry->kind == ENTITY_COMPOUND_MEMBER);
assert(entry->declaration.kind == DECLARATION_KIND_COMPOUND_MEMBER);
- ir_entity *irentity = entry->compound_member.entity;
-
- assert(irentity != NULL);
- ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), compound_addr, irentity);
-
- return sel;
+ if (constant_folding) {
+ ir_mode *mode = get_irn_mode(compound_addr);
+ /* FIXME: here, we need an integer mode with the same number of bits as mode */
+ ir_node *ofs = new_Const_long(mode_uint, entry->compound_member.offset);
+ return new_d_Add(dbgi, compound_addr, ofs, mode);
+ } else {
+ ir_entity *irentity = entry->compound_member.entity;
+ assert(irentity != NULL);
+ return new_d_simpleSel(dbgi, new_NoMem(), compound_addr, irentity);
+ }
}
static ir_node *select_to_firm(const select_expression_t *expression)
static ir_node *classify_type_to_firm(const classify_type_expression_t *const expr)
{
- const type_t *const type = skip_typeref(expr->type_expression->base.type);
+ type_t *type = expr->type_expression->base.type;
+ /* FIXME gcc returns different values depending on whether compiling C or C++
+ * e.g. int x[10] is pointer_type_class in C, but array_type_class in C++ */
gcc_type_class tc;
- switch (type->kind)
- {
- 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;
- goto make_const;
-
- case ATOMIC_TYPE_CHAR: /* gcc handles this as integer */
- case ATOMIC_TYPE_SCHAR: /* gcc handles this as integer */
- case ATOMIC_TYPE_UCHAR: /* gcc handles this as integer */
- case ATOMIC_TYPE_SHORT:
- case ATOMIC_TYPE_USHORT:
- case ATOMIC_TYPE_INT:
- case ATOMIC_TYPE_UINT:
- case ATOMIC_TYPE_LONG:
- case ATOMIC_TYPE_ULONG:
- case ATOMIC_TYPE_LONGLONG:
- case ATOMIC_TYPE_ULONGLONG:
- case ATOMIC_TYPE_BOOL: /* gcc handles this as integer */
- tc = integer_type_class;
- goto make_const;
-
- case ATOMIC_TYPE_FLOAT:
- case ATOMIC_TYPE_DOUBLE:
- case ATOMIC_TYPE_LONG_DOUBLE:
- tc = real_type_class;
- goto make_const;
+ for (;;) {
+ type = skip_typeref(type);
+ switch (type->kind) {
+ 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;
+ goto make_const;
+
+ case ATOMIC_TYPE_WCHAR_T: /* gcc handles this as integer */
+ case ATOMIC_TYPE_CHAR: /* gcc handles this as integer */
+ case ATOMIC_TYPE_SCHAR: /* gcc handles this as integer */
+ case ATOMIC_TYPE_UCHAR: /* gcc handles this as integer */
+ case ATOMIC_TYPE_SHORT:
+ case ATOMIC_TYPE_USHORT:
+ case ATOMIC_TYPE_INT:
+ case ATOMIC_TYPE_UINT:
+ case ATOMIC_TYPE_LONG:
+ case ATOMIC_TYPE_ULONG:
+ case ATOMIC_TYPE_LONGLONG:
+ case ATOMIC_TYPE_ULONGLONG:
+ case ATOMIC_TYPE_BOOL: /* gcc handles this as integer */
+ tc = integer_type_class;
+ goto make_const;
+
+ case ATOMIC_TYPE_FLOAT:
+ case ATOMIC_TYPE_DOUBLE:
+ case ATOMIC_TYPE_LONG_DOUBLE:
+ tc = real_type_class;
+ goto make_const;
+ }
+ panic("Unexpected atomic type in classify_type_to_firm().");
}
- panic("Unexpected atomic type in classify_type_to_firm().");
- }
- case TYPE_COMPLEX: tc = complex_type_class; goto make_const;
- case TYPE_IMAGINARY: tc = complex_type_class; goto make_const;
- case TYPE_BITFIELD: tc = integer_type_class; goto make_const;
- case TYPE_ARRAY: /* gcc handles this as pointer */
- case TYPE_FUNCTION: /* gcc handles this as pointer */
- case TYPE_POINTER: tc = pointer_type_class; goto make_const;
- case TYPE_COMPOUND_STRUCT: tc = record_type_class; goto make_const;
- case TYPE_COMPOUND_UNION: tc = union_type_class; goto make_const;
-
- /* gcc handles this as integer */
- case TYPE_ENUM: tc = integer_type_class; goto make_const;
-
- case TYPE_BUILTIN:
- /* typedef/typeof should be skipped already */
- case TYPE_TYPEDEF:
- case TYPE_TYPEOF:
- case TYPE_INVALID:
- case TYPE_ERROR:
- break;
+ case TYPE_COMPLEX: tc = complex_type_class; goto make_const;
+ case TYPE_IMAGINARY: tc = complex_type_class; goto make_const;
+ case TYPE_BITFIELD: tc = integer_type_class; goto make_const;
+ case TYPE_ARRAY: /* gcc handles this as pointer */
+ case TYPE_FUNCTION: /* gcc handles this as pointer */
+ case TYPE_POINTER: tc = pointer_type_class; goto make_const;
+ case TYPE_COMPOUND_STRUCT: tc = record_type_class; goto make_const;
+ case TYPE_COMPOUND_UNION: tc = union_type_class; goto make_const;
+
+ /* gcc handles this as integer */
+ case TYPE_ENUM: tc = integer_type_class; goto make_const;
+
+ /* gcc classifies the referenced type */
+ case TYPE_REFERENCE: type = type->reference.refers_to; continue;
+
+ case TYPE_BUILTIN:
+ /* typedef/typeof should be skipped already */
+ case TYPE_TYPEDEF:
+ case TYPE_TYPEOF:
+ case TYPE_INVALID:
+ case TYPE_ERROR:
+ break;
+ }
+ panic("unexpected TYPE classify_type_to_firm().");
}
- panic("unexpected TYPE classify_type_to_firm().");
-make_const: ;
+make_const:;
dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
- ir_mode *const mode = mode_int;
- tarval *const tv = new_tarval_from_long(tc, mode);
- return new_d_Const(dbgi, mode, tv);
+ tarval *const tv = new_tarval_from_long(tc, mode_int);
+ return new_d_Const(dbgi, tv);
}
static ir_node *function_name_to_firm(
static ir_node *expression_to_addr(const expression_t *expression)
{
switch(expression->kind) {
- case EXPR_REFERENCE:
- return reference_addr(&expression->reference);
case EXPR_ARRAY_ACCESS:
return array_access_addr(&expression->array_access);
- case EXPR_SELECT:
- return select_addr(&expression->select);
case EXPR_CALL:
return call_expression_to_firm(&expression->call);
- case EXPR_UNARY_DEREFERENCE: {
+ case EXPR_COMPOUND_LITERAL:
+ return compound_literal_to_firm(&expression->compound_literal);
+ case EXPR_REFERENCE:
+ return reference_addr(&expression->reference);
+ case EXPR_SELECT:
+ return select_addr(&expression->select);
+ case EXPR_UNARY_DEREFERENCE:
return dereference_addr(&expression->unary);
- }
default:
break;
}
ir_graph *rem = current_ir_graph;
current_ir_graph = current_function;
- ir_node *old_cur_block = get_cur_block();
- ir_node *block = new_immBlock();
- set_cur_block(old_cur_block);
+ ir_node *block = new_immBlock();
label->block = block;
return new_SymConst(mode_P_code, value, symconst_label);
}
+static ir_node *builtin_symbol_to_firm(
+ const builtin_symbol_expression_t *expression)
+{
+ /* for gcc compatibility we have to produce (dummy) addresses for some
+ * builtins */
+ if (warning.other) {
+ warningf(&expression->base.source_position,
+ "taking address of builtin '%Y'", expression->symbol);
+ }
+
+ /* simply create a NULL pointer */
+ ir_mode *mode = get_ir_mode(type_void_ptr);
+ ir_node *res = new_Const_long(mode, 0);
+
+ return res;
+}
+
/**
* creates firm nodes for an expression. The difference between this function
* and expression_to_firm is, that this version might produce mode_b nodes
case EXPR_VA_ARG:
return va_arg_expression_to_firm(&expression->va_arge);
case EXPR_BUILTIN_SYMBOL:
- panic("unimplemented expression found");
+ return builtin_symbol_to_firm(&expression->builtin_symbol);
case EXPR_BUILTIN_CONSTANT_P:
return builtin_constant_to_firm(&expression->builtin_constant);
case EXPR_BUILTIN_PREFETCH:
panic("invalid expression found");
}
+static bool is_builtin_expect(const expression_t *expression)
+{
+ if (expression->kind != EXPR_CALL)
+ return false;
+
+ expression_t *function = expression->call.function;
+ if (function->kind != EXPR_BUILTIN_SYMBOL)
+ return false;
+ if (function->builtin_symbol.symbol->ID != T___builtin_expect)
+ return false;
+
+ return true;
+}
+
static bool produces_mode_b(const expression_t *expression)
{
switch (expression->kind) {
case EXPR_UNARY_NOT:
return true;
- case EXPR_BINARY_BUILTIN_EXPECT:
- return produces_mode_b(expression->binary.left);
+ case EXPR_CALL:
+ if (is_builtin_expect(expression)) {
+ expression_t *argument = expression->call.arguments->expression;
+ return produces_mode_b(argument);
+ }
+ return false;
case EXPR_BINARY_COMMA:
return produces_mode_b(expression->binary.right);
/* we have to produce a 0/1 from the mode_b expression */
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- return produce_condition_result(expression, dbgi);
+ ir_mode *mode = get_ir_mode(expression->base.type);
+ return produce_condition_result(expression, mode, dbgi);
}
/**
case EXPR_BINARY_LOGICAL_AND: {
const binary_expression_t *binary_expression = &expression->binary;
- ir_node *cur_block = get_cur_block();
ir_node *extra_block = new_immBlock();
- set_cur_block(cur_block);
create_condition_evaluation(binary_expression->left, extra_block,
false_block);
mature_immBlock(extra_block);
case EXPR_BINARY_LOGICAL_OR: {
const binary_expression_t *binary_expression = &expression->binary;
- ir_node *cur_block = get_cur_block();
ir_node *extra_block = new_immBlock();
- set_cur_block(cur_block);
create_condition_evaluation(binary_expression->left, true_block,
extra_block);
mature_immBlock(extra_block);
ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
/* set branch prediction info based on __builtin_expect */
- if (expression->kind == EXPR_BINARY_BUILTIN_EXPECT) {
- long cnst = fold_constant(expression->binary.right);
- cond_jmp_predicate pred;
-
- if (cnst == 0) {
- pred = COND_JMP_PRED_FALSE;
- } else {
- pred = COND_JMP_PRED_TRUE;
+ if (is_builtin_expect(expression)) {
+ call_argument_t *argument = expression->call.arguments->next;
+ if (is_constant_expression(argument->expression)) {
+ long cnst = fold_constant(argument->expression);
+ cond_jmp_predicate pred;
+
+ if (cnst == 0) {
+ pred = COND_JMP_PRED_FALSE;
+ } else {
+ pred = COND_JMP_PRED_TRUE;
+ }
+ set_Cond_jmp_pred(cond, pred);
}
- set_Cond_jmp_pred(cond, pred);
}
add_immBlock_pred(true_block, true_proj);
- if (false_block != NULL) {
- add_immBlock_pred(false_block, false_proj);
- }
+ add_immBlock_pred(false_block, false_proj);
set_cur_block(NULL);
return cond_expr;
variable->declaration.kind = (unsigned char) declaration_kind;
variable->variable.v.entity = irentity;
set_entity_variability(irentity, variability_uninitialized);
- set_entity_ld_ident(irentity, create_ld_ident(irentity, variable));
+ set_entity_ld_ident(irentity, create_ld_ident(variable));
if (parent_type == get_tls_type())
set_entity_allocation(irentity, allocation_automatic);
else if (declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE)
if (is_type_compound(type)) {
fprintf(stderr, ".%s", entry->compound_entry->base.symbol->string);
} else if (is_type_array(type)) {
- fprintf(stderr, "[%zu]", entry->index);
+ fprintf(stderr, "[%u]", (unsigned) entry->index);
} else {
fprintf(stderr, "-INVALID-");
}
if (path->invalid) {
/* TODO: handle this... */
panic("invalid initializer in ast2firm (excessive elements)");
- return;
}
type_path_entry_t *top = get_type_path_top(path);
return create_initializer_const(value);
}
+/** test wether 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 {
+ return false;
+ }
+
+ return is_type_integer(inner);
+}
+
static ir_initializer_t *create_ir_initializer_list(
const initializer_list_t *initializer, type_t *type)
{
break;
descend_into_subtype(&path);
}
+ } else if (sub_initializer->kind == INITIALIZER_STRING
+ || sub_initializer->kind == INITIALIZER_WIDE_STRING) {
+ /* we might have to descend into types until we're at a scalar
+ * type */
+ while (true) {
+ type_t *orig_top_type = path.top_type;
+ type_t *top_type = skip_typeref(orig_top_type);
+
+ if (is_string_type(top_type))
+ break;
+ descend_into_subtype(&path);
+ }
}
ir_initializer_t *sub_irinitializer
if (is_atomic_type(type)) {
ir_mode *mode = get_type_mode(type);
tarval *zero = get_mode_null(mode);
- ir_node *cnst = new_d_Const(dbgi, mode, zero);
+ ir_node *cnst = new_d_Const(dbgi, zero);
/* TODO: bitfields */
ir_node *mem = get_store();
if (is_Array_type(type)) {
ir_entity *entity = get_array_element_entity(type);
tarval *index_tv = new_tarval_from_long(i, mode_uint);
- ir_node *cnst = new_d_Const(dbgi, mode_uint, index_tv);
+ ir_node *cnst = new_d_Const(dbgi, index_tv);
ir_node *in[1] = { cnst };
irtype = get_array_element_type(type);
addr = new_d_Sel(dbgi, new_NoMem(), base_addr, 1, in, entity);
case IR_INITIALIZER_TARVAL: {
tarval *tv = get_initializer_tarval_value(initializer);
ir_mode *mode = get_tarval_mode(tv);
- ir_node *cnst = new_d_Const(dbgi, mode, tv);
+ ir_node *cnst = new_d_Const(dbgi, tv);
ir_type *ent_type = get_entity_type(entity);
/* is it a bitfield type? */
ir_entity *sub_entity;
if (is_Array_type(type)) {
tarval *index_tv = new_tarval_from_long(i, mode_uint);
- ir_node *cnst = new_d_Const(dbgi, mode_uint, index_tv);
+ ir_node *cnst = new_d_Const(dbgi, index_tv);
ir_node *in[1] = { cnst };
irtype = get_array_element_type(type);
sub_entity = get_array_element_entity(type);
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,
- (variable_t*) &entity->variable);
+ entity);
++next_value_number_function;
}
}
assert(entity->kind == ENTITY_VARIABLE);
assert(entity->declaration.kind == DECLARATION_KIND_UNKNOWN);
- type_t *const type = skip_typeref(entity->declaration.type);
- ir_type *const global_type = get_glob_type();
- ir_type *const irtype = get_ir_type(type);
- dbg_info *const dbgi = get_dbg_info(&entity->base.source_position);
+ type_t *const type = skip_typeref(entity->declaration.type);
+ 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);
size_t l = strlen(entity->base.symbol->string);
char buf[l + sizeof(".%u")];
snprintf(buf, sizeof(buf), "%s.%%u", entity->base.symbol->string);
ident *const id = id_unique(buf);
- ir_entity *const irentity = new_d_entity(global_type, id, irtype, dbgi);
+ ir_entity *const irentity = new_d_entity(var_type, id, irtype, dbgi);
if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
set_entity_volatility(irentity, volatility_is_volatile);
entity->declaration.kind = DECLARATION_KIND_GLOBAL_VARIABLE;
entity->variable.v.entity = irentity;
- set_entity_ld_ident(irentity, create_ld_ident(irentity, entity));
+ set_entity_ld_ident(irentity, id);
set_entity_variability(irentity, variability_uninitialized);
set_entity_visibility(irentity, visibility_local);
- set_entity_allocation(irentity, allocation_static);
+ set_entity_allocation(irentity, entity->variable.thread_local ?
+ allocation_automatic : allocation_static);
ir_graph *const old_current_ir_graph = current_ir_graph;
current_ir_graph = get_const_code_irg();
{
assert(entity->kind == ENTITY_VARIABLE);
- ir_visibility vis;
- ir_type *var_type;
- switch ((storage_class_tag_t) entity->declaration.storage_class) {
- case STORAGE_CLASS_STATIC:
- vis = visibility_local;
- goto global_var;
-
- case STORAGE_CLASS_EXTERN:
- vis = visibility_external_allocated;
- goto global_var;
-
- case STORAGE_CLASS_NONE:
- vis = visibility_external_visible;
- goto global_var;
-
- case STORAGE_CLASS_THREAD:
- vis = visibility_external_visible;
- goto tls_var;
-
- case STORAGE_CLASS_THREAD_EXTERN:
- vis = visibility_external_allocated;
- goto tls_var;
-
- case STORAGE_CLASS_THREAD_STATIC:
- vis = visibility_local;
- goto tls_var;
-
-tls_var:
- var_type = get_tls_type();
- goto create_var;
-
-global_var:
- var_type = get_glob_type();
- goto create_var;
-
-create_var:
- create_variable_entity(entity,
- DECLARATION_KIND_GLOBAL_VARIABLE,
- var_type);
- /* Matze: I'm confused, shouldn't we only be here when creating
- * variables? */
-#if 0
- if (!is_type_function(skip_typeref(entity->declaration.type))) {
- set_entity_visibility(declaration->v.entity, vis);
- }
-#else
- set_entity_visibility(entity->variable.v.entity, vis);
-#endif
-
- return;
+ ir_visibility vis;
+ switch ((storage_class_tag_t)entity->declaration.storage_class) {
+ case STORAGE_CLASS_STATIC: vis = visibility_local; break;
+ case STORAGE_CLASS_EXTERN: vis = visibility_external_allocated; break;
+ case STORAGE_CLASS_NONE: vis = visibility_external_visible; break;
- case STORAGE_CLASS_TYPEDEF:
- case STORAGE_CLASS_AUTO:
- case STORAGE_CLASS_REGISTER:
- break;
+ default: panic("Invalid storage class for global variable");
}
- panic("Invalid storage class for global variable");
+
+ ir_type *var_type = entity->variable.thread_local ?
+ get_tls_type() : get_glob_type();
+ create_variable_entity(entity,
+ DECLARATION_KIND_GLOBAL_VARIABLE, var_type);
+ set_entity_visibility(entity->variable.v.entity, vis);
}
static void create_local_declaration(entity_t *entity)
}
return;
case STORAGE_CLASS_TYPEDEF:
- case STORAGE_CLASS_THREAD:
- case STORAGE_CLASS_THREAD_EXTERN:
- case STORAGE_CLASS_THREAD_STATIC:
break;
}
panic("invalid storage class found");
case DECLARATION_KIND_INNER_FUNCTION:
return;
+ case DECLARATION_KIND_PARAMETER:
+ case DECLARATION_KIND_PARAMETER_ENTITY:
+ panic("can't initialize parameters");
+
case DECLARATION_KIND_UNKNOWN:
panic("can't initialize unknown declaration");
}
static void declaration_statement_to_firm(declaration_statement_t *statement)
{
- entity_t *entity = statement->declarations_begin;
- entity_t *end = statement->declarations_end->base.next;
- for ( ; entity != end; entity = entity->base.next) {
- if (!is_declaration(entity))
- continue;
- initialize_local_declaration(entity);
+ entity_t * entity = statement->declarations_begin;
+ entity_t *const last = statement->declarations_end;
+ if (entity != NULL) {
+ for ( ;; entity = entity->base.next) {
+ if (is_declaration(entity)) {
+ initialize_local_declaration(entity);
+ } else if (entity->kind == ENTITY_TYPEDEF) {
+ type_t *const type = entity->typedefe.type;
+ if (is_type_array(type) && type->array.is_vla)
+ get_vla_size(&type->array);
+ }
+ if (entity == last)
+ break;
+ }
}
}
ir_node *true_block = NULL;
if (statement->true_statement != NULL) {
true_block = new_immBlock();
+ set_cur_block(true_block);
statement_to_firm(statement->true_statement);
if (get_cur_block() != NULL) {
ir_node *jmp = new_Jmp();
ir_node *false_block = NULL;
if (statement->false_statement != NULL) {
false_block = new_immBlock();
+ set_cur_block(false_block);
statement_to_firm(statement->false_statement);
if (get_cur_block() != NULL) {
break_label = NULL;
ir_node *body_block = new_immBlock();
+ set_cur_block(body_block);
statement_to_firm(statement->body);
ir_node *false_block = break_label;
continue_label = header_block;
break_label = NULL;
+ set_cur_block(body_block);
statement_to_firm(statement->body);
ir_node *false_block = break_label;
create_condition_evaluation(statement->condition, body_block, false_block);
mature_immBlock(body_block);
mature_immBlock(header_block);
- if (false_block != NULL) {
- mature_immBlock(false_block);
- }
+ mature_immBlock(false_block);
set_cur_block(false_block);
}
/* create the step block */
ir_node *const step_block = new_immBlock();
+ set_cur_block(step_block);
if (statement->step != NULL) {
expression_to_firm(statement->step);
}
/* create the header block */
ir_node *const header_block = new_immBlock();
+ set_cur_block(header_block);
if (jmp != NULL) {
add_immBlock_pred(header_block, jmp);
}
ir_node *const false_block = new_immBlock();
/* the loop body */
- ir_node * body_block;
+ ir_node *body_block;
if (statement->body != NULL) {
ir_node *const old_continue_label = continue_label;
ir_node *const old_break_label = break_label;
break_label = false_block;
body_block = new_immBlock();
+ set_cur_block(body_block);
statement_to_firm(statement->body);
assert(continue_label == step_block);
static ir_node *get_break_label(void)
{
if (break_label == NULL) {
- ir_node *cur_block = get_cur_block();
break_label = new_immBlock();
- set_cur_block(cur_block);
}
return break_label;
}
ir_node *const fallthrough = (get_cur_block() == NULL ? NULL : new_Jmp());
ir_node *proj;
- ir_node *old_block = get_nodes_block(current_switch_cond);
ir_node *block = new_immBlock();
- set_cur_block(old_block);
+ set_cur_block(get_nodes_block(current_switch_cond));
if (statement->expression != NULL) {
long pn = statement->first_case;
long end_pn = statement->last_case;
= be_parse_asm_constraints(constraints);
if (asm_flags & ASM_CONSTRAINT_FLAG_NO_SUPPORT) {
- errorf(&statement->base.source_position,
+ warningf(&statement->base.source_position,
"some constraints in '%s' are not supported", constraints);
- continue;
}
if (asm_flags & ASM_CONSTRAINT_FLAG_INVALID) {
errorf(&statement->base.source_position,
switch (statement->kind) {
case STATEMENT_INVALID:
panic("invalid statement found");
- return;
case STATEMENT_EMPTY:
/* nothing */
return;
case STATEMENT_LABEL:
label_to_firm(&statement->label);
return;
- case STATEMENT_LOCAL_LABEL:
- /* local labels transform the semantics of labels while parsing
- * they don't need any special treatment here */
- return;
case STATEMENT_GOTO:
goto_to_firm(&statement->gotos);
return;
leave_statement_to_firm(&statement->leave);
return;
}
- panic("Statement not implemented\n");
+ panic("statement not implemented");
}
static int count_local_variables(const entity_t *entity,
- const entity_t *const end)
+ const entity_t *const last)
{
int count = 0;
- for (; entity != end; entity = entity->base.next) {
- if (entity->kind != ENTITY_VARIABLE)
+ for (; entity != NULL; 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;
- type_t *type = skip_typeref(entity->declaration.type);
+ }
- if (!entity->variable.address_taken && is_type_scalar(type))
+ if (!address_taken && is_type_scalar(type))
++count;
+
+ if (entity == last)
+ break;
}
return count;
}
case STATEMENT_DECLARATION: {
const declaration_statement_t *const decl_stmt = &stmt->declaration;
*count += count_local_variables(decl_stmt->declarations_begin,
- decl_stmt->declarations_end->base.next);
+ decl_stmt->declarations_end);
break;
}
int n = 0;
entity_t *parameter = entity->function.parameters.entities;
for ( ; parameter != NULL; parameter = parameter->base.next, ++n) {
- assert(parameter->kind == ENTITY_VARIABLE);
+ assert(parameter->kind == ENTITY_PARAMETER);
assert(parameter->declaration.kind == DECLARATION_KIND_UNKNOWN);
type_t *type = skip_typeref(parameter->declaration.type);
- bool needs_entity = parameter->variable.address_taken;
+ bool needs_entity = parameter->parameter.address_taken;
assert(!is_type_array(type));
if (is_type_compound(type)) {
needs_entity = true;
set_entity_ident(entity, id);
parameter->declaration.kind
- = DECLARATION_KIND_LOCAL_VARIABLE_ENTITY;
- parameter->variable.v.entity = entity;
+ = DECLARATION_KIND_PARAMETER_ENTITY;
+ parameter->parameter.v.entity = entity;
continue;
}
value = create_conv(NULL, value, mode);
value = do_strict_conv(NULL, value);
- parameter->declaration.kind = DECLARATION_KIND_LOCAL_VARIABLE;
- parameter->variable.v.value_number = next_value_number_function;
+ parameter->declaration.kind = DECLARATION_KIND_PARAMETER;
+ parameter->parameter.v.value_number = next_value_number_function;
set_irg_loc_description(current_ir_graph, next_value_number_function,
- (variable_t*) ¶meter->variable);
+ parameter);
++next_value_number_function;
- set_value(parameter->variable.v.value_number, value);
+ set_value(parameter->parameter.v.value_number, value);
}
}
*/
static void handle_decl_modifier_irg(ir_graph_ptr irg, decl_modifiers_t decl_modifiers)
{
+ if (decl_modifiers & DM_RETURNS_TWICE) {
+ /* TRUE if the declaration includes __attribute__((returns_twice)) */
+ set_irg_additional_property(irg, mtp_property_returns_twice);
+ }
if (decl_modifiers & DM_NORETURN) {
/* TRUE if the declaration includes the Microsoft
__declspec(noreturn) specifier. */
ir_node *in[1];
/* ยง5.1.2.2.3 main implicitly returns 0 */
- if (strcmp(entity->base.symbol->string, "main") == 0) {
- in[0] = new_Const(mode, get_mode_null(mode));
+ if (is_main(entity)) {
+ in[0] = new_Const(get_mode_null(mode));
} else {
in[0] = new_Unknown(mode);
}
obstack_init(&asm_obst);
init_atomic_modes();
- id_underscore = new_id_from_chars("_", 1);
- id_imp = new_id_from_chars("__imp_", 6);
-
/* OS option must be set to the backend */
switch (firm_opt.os_support) {
case OS_SUPPORT_MINGW:
- create_ld_ident = create_ld_ident_win32;
+ create_ld_ident = create_name_win32;
+ break;
case OS_SUPPORT_LINUX:
- create_ld_ident = create_ld_ident_linux_elf;
+ create_ld_ident = create_name_linux_elf;
break;
case OS_SUPPORT_MACHO:
- create_ld_ident = create_ld_ident_macho;
+ create_ld_ident = create_name_macho;
break;
+ default:
+ panic("unexpected OS support mode");
}
/* create idents for all known runtime functions */
void translation_unit_to_firm(translation_unit_t *unit)
{
/* just to be sure */
- continue_label = NULL;
- break_label = NULL;
- current_switch_cond = NULL;
+ continue_label = NULL;
+ break_label = NULL;
+ current_switch_cond = NULL;
+ current_translation_unit = unit;
init_ir_types();
inner_functions = NEW_ARR_F(entity_t *, 0);
DEL_ARR_F(inner_functions);
inner_functions = NULL;
- current_ir_graph = NULL;
+ current_ir_graph = NULL;
+ current_translation_unit = NULL;
}
projects / cparser / blobdiff