#include "types.h"
#include "type_hash.h"
#include "mangle.h"
-#include "walk_statements.h"
+#include "walk.h"
#include "warning.h"
#include "printer.h"
#include "entitymap_t.h"
#include "driver/firm_opt.h"
-#include "driver/firm_cmdline.h"
typedef struct trampoline_region trampoline_region;
struct trampoline_region {
ir_entity *region; /**< created region for the trampoline */
};
+fp_model_t firm_fp_model = fp_model_precise;
+
static const backend_params *be_params;
static ir_type *ir_type_char;
static entity_t **inner_functions;
static ir_node *ijmp_list;
static bool constant_folding;
-static bool initializer_use_bitfield_basetype;
-
-extern bool have_const_functions;
static const entity_t *current_function_entity;
static ir_node *current_function_name;
static translation_unit_t *current_translation_unit;
static trampoline_region *current_trampolines;
static ir_type *current_outer_frame;
-static ir_type *current_outer_value_type;
static ir_node *current_static_link;
+static ir_entity *current_vararg_entity;
static entitymap_t entitymap;
} declaration_kind_t;
static ir_mode *get_ir_mode_storage(type_t *type);
-/*
- * get arithmetic mode for a type. This is different from get_ir_mode_storage,
- * int that it returns bigger modes for floating point on some platforms
- * (x87 internally does arithemtic with 80bits)
- */
-static ir_mode *get_ir_mode_arithmetic(type_t *type);
static ir_type *get_ir_type_incomplete(type_t *type);
ARR_APP1(entity_t*, inner_functions, entity);
}
-ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
+static ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
{
const entity_t *entity = get_irg_loc_description(irg, pos);
if (entity != NULL) {
- warningf(&entity->base.source_position,
- "%s '%#T' might be used uninitialized",
- get_entity_kind_name(entity->kind),
- entity->declaration.type, entity->base.symbol);
+ source_position_t const *const pos = &entity->base.source_position;
+ warningf(WARN_UNINITIALIZED, pos, "'%N' might be used uninitialized", entity);
}
return new_r_Unknown(irg, mode);
}
if (pos == NULL)
return NULL;
if (line != NULL)
- *line = pos->linenr;
+ *line = pos->lineno;
return pos->input_name;
}
return (type_dbg_info*) type;
}
+/* is the current block a reachable one? */
+static bool currently_reachable(void)
+{
+ ir_node *const block = get_cur_block();
+ return block != NULL && !is_Bad(block);
+}
+
+static void set_unreachable_now(void)
+{
+ set_cur_block(NULL);
+}
+
static ir_mode *atomic_modes[ATOMIC_TYPE_LAST+1];
static ir_mode *mode_int, *mode_uint;
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)
+{
+ if (architecture_modulo_shift == 0)
+ return 0;
+ if (type_size < architecture_modulo_shift)
+ return architecture_modulo_shift;
+ return type_size;
+}
+
static ir_mode *init_atomic_ir_mode(atomic_type_kind_t kind)
{
unsigned flags = get_atomic_type_flags(kind);
ir_mode_sort sort;
unsigned bit_size = size * 8;
bool is_signed = (flags & ATOMIC_TYPE_FLAG_SIGNED) != 0;
- unsigned modulo_shift;
+ unsigned modulo_shift = 0;
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;
+ modulo_shift = decide_modulo_shift(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;
}
return new_ir_mode(name, sort, bit_size, is_signed, arithmetic,
modulo_shift);
/* there's no real void type in firm */
atomic_modes[ATOMIC_TYPE_VOID] = atomic_modes[ATOMIC_TYPE_CHAR];
-
- /* initialize pointer modes */
- char name[64];
- ir_mode_sort sort = irms_reference;
- unsigned bit_size = machine_size;
- bool is_signed = 0;
- ir_mode_arithmetic arithmetic = irma_twos_complement;
- unsigned modulo_shift
- = bit_size < machine_size ? machine_size : bit_size;
-
- snprintf(name, sizeof(name), "p%u", machine_size);
- ir_mode *ptr_mode = new_ir_mode(name, sort, bit_size, is_signed, arithmetic,
- modulo_shift);
-
- set_reference_mode_signed_eq(ptr_mode, atomic_modes[get_intptr_kind()]);
- set_reference_mode_unsigned_eq(ptr_mode, atomic_modes[get_uintptr_kind()]);
-
- /* Hmm, pointers should be machine size */
- set_modeP_data(ptr_mode);
- set_modeP_code(ptr_mode);
}
ir_mode *get_atomic_mode(atomic_type_kind_t kind)
/**
* Creates a Firm type for a complex type
*/
-static ir_type *create_complex_type(const complex_type_t *type)
+static ir_type *create_complex_type(const atomic_type_t *type)
{
atomic_type_kind_t kind = type->akind;
ir_mode *mode = atomic_modes[kind];
/**
* Creates a Firm type for an imaginary type
*/
-static ir_type *create_imaginary_type(imaginary_type_t *type)
+static ir_type *create_imaginary_type(const atomic_type_t *type)
{
- return create_atomic_type(type->akind, (const type_t*) type);
+ return create_atomic_type(type->akind, (const type_t*)type);
}
/**
type_dbg_info *dbgi = get_type_dbg_info_((const type_t*) type);
type_t *points_to = type->points_to;
ir_type *ir_points_to = get_ir_type_incomplete(points_to);
- ir_type *ir_type = new_d_type_pointer(ir_points_to, dbgi);
+ ir_type *irtype = new_d_type_pointer(ir_points_to, dbgi);
- return ir_type;
+ return irtype;
}
static ir_type *create_reference_type(reference_type_t *type)
type_dbg_info *dbgi = get_type_dbg_info_((const 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_d_type_pointer(ir_refers_to, dbgi);
+ ir_type *irtype = new_d_type_pointer(ir_refers_to, dbgi);
- return ir_type;
+ return irtype;
}
static ir_type *create_array_type(array_type_t *type)
type_dbg_info *dbgi = get_type_dbg_info_((const type_t*) type);
type_t *element_type = type->element_type;
ir_type *ir_element_type = get_ir_type(element_type);
- ir_type *ir_type = new_d_type_array(1, ir_element_type, dbgi);
+ ir_type *irtype = new_d_type_array(1, ir_element_type, dbgi);
const int align = get_type_alignment_bytes(ir_element_type);
- set_type_alignment_bytes(ir_type, align);
+ set_type_alignment_bytes(irtype, align);
if (type->size_constant) {
int n_elements = type->size;
- set_array_bounds_int(ir_type, 0, 0, n_elements);
+ set_array_bounds_int(irtype, 0, 0, n_elements);
size_t elemsize = get_type_size_bytes(ir_element_type);
if (elemsize % align > 0) {
elemsize += align - (elemsize % align);
}
- set_type_size_bytes(ir_type, n_elements * elemsize);
+ set_type_size_bytes(irtype, n_elements * elemsize);
} else {
- set_array_lower_bound_int(ir_type, 0, 0);
+ set_array_lower_bound_int(irtype, 0, 0);
}
- set_type_state(ir_type, layout_fixed);
+ set_type_state(irtype, layout_fixed);
- return ir_type;
+ return irtype;
}
/**
return res;
}
-static ir_type *create_bitfield_type(bitfield_type_t *const type)
+static ir_type *create_bitfield_type(const entity_t *entity)
{
- type_t *base = skip_typeref(type->base_type);
+ assert(entity->kind == ENTITY_COMPOUND_MEMBER);
+ type_t *base = skip_typeref(entity->declaration.type);
assert(base->kind == TYPE_ATOMIC || base->kind == TYPE_ENUM);
ir_type *irbase = get_ir_type(base);
- unsigned size = type->bit_size;
+ 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, size,
- (const type_t*) type);
+ return get_signed_int_type_for_bit_size(irbase, bit_size, base);
} else {
- return get_unsigned_int_type_for_bit_size(irbase, size,
- (const type_t*) type);
+ return get_unsigned_int_type_for_bit_size(irbase, bit_size, base);
}
}
return compound->irtype;
}
- symbol_t *symbol = compound->base.symbol;
+ symbol_t *type_symbol = compound->base.symbol;
ident *id;
- if (symbol != NULL) {
- id = new_id_from_str(symbol->string);
+ if (type_symbol != NULL) {
+ id = new_id_from_str(type_symbol->string);
} else {
if (is_union) {
id = id_unique("__anonymous_union.%u");
ident *ident;
if (symbol == NULL) {
/* anonymous bitfield member, skip */
- if (entry_type->kind == TYPE_BITFIELD)
+ if (entry->compound_member.bitfield)
continue;
assert(entry_type->kind == TYPE_COMPOUND_STRUCT
|| entry_type->kind == TYPE_COMPOUND_UNION);
dbg_info *dbgi = get_dbg_info(&entry->base.source_position);
- ir_type *entry_irtype = get_ir_type(entry_type);
+ ir_type *entry_irtype;
+ if (entry->compound_member.bitfield) {
+ entry_irtype = create_bitfield_type(entry);
+ } else {
+ entry_irtype = get_ir_type(entry_type);
+ }
ir_entity *entity = new_d_entity(irtype, ident, entry_irtype, dbgi);
set_entity_offset(entity, entry->compound_member.offset);
static ir_type *create_enum_type(enum_type_t *const type)
{
- type->base.firm_type = ir_type_int;
+ type->base.base.firm_type = ir_type_int;
- ir_mode *const mode = mode_int;
- tarval *const one = get_mode_one(mode);
- tarval * tv_next = get_mode_null(mode);
+ ir_mode *const mode = mode_int;
+ 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;
constant_folding = constant_folding_old;
- return create_atomic_type(type->akind, (const type_t*) type);
+ return create_atomic_type(type->base.akind, (const type_t*) type);
}
static ir_type *get_ir_type_incomplete(type_t *type)
firm_type = create_atomic_type(type->atomic.akind, type);
break;
case TYPE_COMPLEX:
- firm_type = create_complex_type(&type->complex);
+ firm_type = create_complex_type(&type->atomic);
break;
case TYPE_IMAGINARY:
- firm_type = create_imaginary_type(&type->imaginary);
+ firm_type = create_imaginary_type(&type->atomic);
break;
case TYPE_FUNCTION:
firm_type = create_method_type(&type->function, false);
case TYPE_ENUM:
firm_type = create_enum_type(&type->enumt);
break;
- case TYPE_BUILTIN:
- firm_type = get_ir_type(type->builtin.real_type);
- break;
- case TYPE_BITFIELD:
- firm_type = create_bitfield_type(&type->bitfield);
- break;
case TYPE_TYPEOF:
case TYPE_TYPEDEF:
- case TYPE_INVALID:
break;
}
if (firm_type == NULL)
return mode;
}
+/*
+ * get arithmetic mode for a type. This is different from get_ir_mode_storage,
+ * int that it returns bigger modes for floating point on some platforms
+ * (x87 internally does arithemtic with 80bits)
+ */
static ir_mode *get_ir_mode_arithmetic(type_t *type)
{
ir_mode *mode = get_ir_mode_storage(type);
static ident *rts_idents[lengthof(rts_data)];
-static ident* (*create_ld_ident)(entity_t*) = create_name_linux_elf;
+static create_ld_ident_func create_ld_ident = create_name_linux_elf;
+
+void set_create_ld_ident(ident *(*func)(entity_t*))
+{
+ create_ld_ident = func;
+}
/**
* Handle GNU attributes for entities
if (is_method_entity(irentity)) {
if (modifiers & DM_PURE) {
- set_entity_additional_property(irentity, mtp_property_pure);
+ set_entity_additional_properties(irentity, mtp_property_pure);
}
if (modifiers & DM_CONST) {
- set_entity_additional_property(irentity, mtp_property_const);
- have_const_functions = true;
+ add_entity_additional_properties(irentity, mtp_property_const);
}
}
if (modifiers & DM_USED) {
static ir_entity *get_function_entity(entity_t *entity, ir_type *owner_type)
{
assert(entity->kind == ENTITY_FUNCTION);
- if (entity->function.irentity != NULL) {
+ if (entity->function.irentity != NULL)
return entity->function.irentity;
- }
- entity_t *original_entity = entity;
- if (entity->function.btk != bk_none) {
- entity = get_builtin_replacement(entity);
- if (entity == NULL)
- return NULL;
+ switch (entity->function.btk) {
+ case BUILTIN_NONE:
+ case BUILTIN_LIBC:
+ case BUILTIN_LIBC_CHECK:
+ break;
+ default:
+ return NULL;
}
if (is_main(entity)) {
nested_function = true;
dbg_info *const dbgi = get_dbg_info(&entity->base.source_position);
- irentity = new_d_entity(owner_type, id, ir_type_method, dbgi);
+ irentity = new_d_entity(owner_type, id, ir_type_method, dbgi);
ident *ld_id;
if (nested_function)
}
} else {
/* nested functions are always local */
- set_entity_visibility(irentity, ir_visibility_local);
+ set_entity_visibility(irentity, ir_visibility_local);
}
/* We should check for file scope here, but as long as we compile C only
this is not needed. */
- if (! firm_opt.freestanding && !has_body) {
+ if (!freestanding && !has_body) {
/* check for a known runtime function */
for (size_t i = 0; i < lengthof(rts_data); ++i) {
if (id != rts_idents[i])
entitymap_insert(&entitymap, symbol, irentity);
entity_created:
- original_entity->declaration.kind = DECLARATION_KIND_FUNCTION;
- original_entity->function.irentity = irentity;
+ entity->declaration.kind = DECLARATION_KIND_FUNCTION;
+ entity->function.irentity = irentity;
return irentity;
}
* Creates a SymConst for a given entity.
*
* @param dbgi debug info
- * @param mode the (reference) mode for the SymConst
* @param entity the entity
*/
-static ir_node *create_symconst(dbg_info *dbgi, ir_mode *mode,
- ir_entity *entity)
+static ir_node *create_symconst(dbg_info *dbgi, ir_entity *entity)
{
assert(entity != NULL);
union symconst_symbol sym;
sym.entity_p = entity;
- return new_d_SymConst(dbgi, mode, sym, symconst_addr_ent);
+ return new_d_SymConst(dbgi, mode_P, sym, symconst_addr_ent);
}
static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode)
{
ir_mode *value_mode = get_irn_mode(value);
- if (value_mode == dest_mode || is_Bad(value))
+ if (value_mode == dest_mode)
return value;
if (dest_mode == mode_b) {
ir_node *zero = new_Const(get_mode_null(value_mode));
- ir_node *cmp = new_d_Cmp(dbgi, value, zero);
- ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pn_Cmp_Lg);
- return proj;
+ ir_node *cmp = new_d_Cmp(dbgi, value, zero, ir_relation_less_greater);
+ return cmp;
}
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.
*
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);
- tarval *tv = new_tarval_from_long(v, mode);
+ 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, mode_P_data, entity);
+ return create_symconst(dbgi, entity);
}
/**
ir_initializer_t *initializer = create_initializer_compound(slen);
for (size_t i = 0; i < slen; ++i) {
- tarval *tv = new_tarval_from_long(string[i], mode);
+ 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);
}
set_entity_initializer(entity, initializer);
- return create_symconst(dbgi, mode_P_data, entity);
+ return create_symconst(dbgi, entity);
}
static bool try_create_integer(literal_expression_t *literal,
assert(type->kind == TYPE_ATOMIC);
atomic_type_kind_t akind = type->atomic.akind;
- ir_mode *mode = atomic_modes[akind];
- tarval *tv = new_integer_tarval_from_str(string, size, 1, base, mode);
+ ir_mode *mode = atomic_modes[akind];
+ ir_tarval *tv = new_integer_tarval_from_str(string, size, 1, base, mode);
if (tv == tarval_bad)
return false;
static void create_integer_tarval(literal_expression_t *literal)
{
- unsigned us = 0;
- unsigned ls = 0;
- symbol_t *suffix = literal->suffix;
+ unsigned us = 0;
+ unsigned ls = 0;
+ const string_t *suffix = &literal->suffix;
/* parse suffix */
- if (suffix != NULL) {
- for (const char *c = suffix->string; *c != '\0'; ++c) {
+ 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; }
}
ir_mode *mode = get_ir_mode_storage(type);
const char *string = literal->value.begin;
size_t size = literal->value.size;
- tarval *tv;
+ ir_tarval *tv;
switch (literal->base.kind) {
case EXPR_LITERAL_WIDE_CHARACTER: {
}
case EXPR_LITERAL_CHARACTER: {
long long int v;
+ bool char_is_signed
+ = get_atomic_type_flags(ATOMIC_TYPE_CHAR) & ATOMIC_TYPE_FLAG_SIGNED;
if (size == 1 && char_is_signed) {
v = (signed char)string[0];
} else {
assert(entity != NULL);
ir_node *in[3];
in[0] = get_trampoline_region(dbgi, entity);
- in[1] = create_symconst(dbgi, mode, entity);
+ in[1] = create_symconst(dbgi, entity);
in[2] = get_irg_frame(current_ir_graph);
ir_node *irn = new_d_Builtin(dbgi, get_store(), 3, in, ir_bk_inner_trampoline, get_unknown_type());
return new_d_strictConv(dbgi, node, mode);
}
-/**
- * Returns the address of a global variable.
- *
- * @param dbgi debug info
- * @param variable the variable
- */
-static ir_node *get_global_var_address(dbg_info *const dbgi,
- const variable_t *const variable)
-{
- ir_entity *const irentity = variable->v.entity;
- if (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);
- }
-}
-
/**
* Returns the correct base address depending on whether it is a parameter or a
* normal local variable.
{
ir_graph *const irg = current_ir_graph;
const ir_type *const owner = get_entity_owner(ent);
- if (owner == current_outer_frame || owner == current_outer_value_type) {
+ if (owner == current_outer_frame) {
assert(current_static_link != NULL);
return current_static_link;
} else {
/* make sure the type is constructed */
(void) get_ir_type(type);
- if (entity->kind == ENTITY_FUNCTION && entity->function.btk != bk_none) {
+ if (entity->kind == ENTITY_FUNCTION
+ && entity->function.btk != BUILTIN_NONE) {
ir_entity *irentity = get_function_entity(entity, NULL);
/* for gcc compatibility we have to produce (dummy) addresses for some
* builtins which don't have entities */
if (irentity == NULL) {
- if (warning.other) {
- warningf(&ref->base.source_position,
- "taking address of builtin '%Y'",
- ref->entity->base.symbol);
- }
+ 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);
/* simply create a NULL pointer */
ir_mode *mode = get_ir_mode_arithmetic(type_void_ptr);
- ir_node *res = new_Const_long(mode, 0);
+ ir_node *res = new_Const(get_mode_null(mode));
return res;
}
return create_conv(NULL, value, get_ir_mode_arithmetic(type));
}
case DECLARATION_KIND_FUNCTION: {
- ir_mode *const mode = get_ir_mode_storage(type);
- return create_symconst(dbgi, mode, entity->function.irentity);
+ 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, mode, entity->function.irentity);
+ 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 = get_global_var_address(dbgi, variable);
+ ir_node *const addr = create_symconst(dbgi, variable->v.entity);
return deref_address(dbgi, variable->base.type, addr);
}
* as an indicator for no real address) */
return NULL;
case DECLARATION_KIND_GLOBAL_VARIABLE: {
- ir_node *const addr = get_global_var_address(dbgi, &entity->variable);
+ ir_node *const addr = create_symconst(dbgi, entity->variable.v.entity);
return addr;
}
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
return entity->variable.v.vla_base;
case DECLARATION_KIND_FUNCTION: {
- type_t *const type = skip_typeref(entity->declaration.type);
- ir_mode *const mode = get_ir_mode_storage(type);
- return create_symconst(dbgi, mode, entity->function.irentity);
+ 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, mode, entity->function.irentity);
+ return create_symconst(dbgi, entity->function.irentity);
} else {
/* need trampoline here */
return create_trampoline(dbgi, mode, entity->function.irentity);
panic("reference to declaration with unknown type found");
}
-/**
- * Generate an unary builtin.
- *
- * @param kind the builtin kind to generate
- * @param op the operand
- * @param function_type the function type for the GNU builtin routine
- * @param db debug info
- */
-static ir_node *gen_unary_builtin(ir_builtin_kind kind, expression_t *op, type_t *function_type, dbg_info *db)
-{
- ir_node *in[1];
- in[0] = expression_to_firm(op);
-
- ir_type *tp = get_ir_type(function_type);
- ir_type *res = get_method_res_type(tp, 0);
- ir_node *irn = new_d_Builtin(db, get_irg_no_mem(current_ir_graph), 1, in, kind, tp);
- set_irn_pinned(irn, op_pin_state_floats);
- return new_Proj(irn, get_type_mode(res), pn_Builtin_1_result);
-}
-
-/**
- * Generate a pinned unary builtin.
- *
- * @param kind the builtin kind to generate
- * @param op the operand
- * @param function_type the function type for the GNU builtin routine
- * @param db debug info
- */
-static ir_node *gen_unary_builtin_pinned(ir_builtin_kind kind, expression_t *op,
- type_t *function_type, dbg_info *db)
-{
- ir_node *in[1];
- in[0] = expression_to_firm(op);
-
- ir_type *tp = get_ir_type(function_type);
- ir_type *res = get_method_res_type(tp, 0);
- ir_node *mem = get_store();
- ir_node *irn = new_d_Builtin(db, mem, 1, in, kind, tp);
- set_store(new_Proj(irn, mode_M, pn_Builtin_M));
- return new_Proj(irn, get_type_mode(res), pn_Builtin_1_result);
-}
-
-/**
- * Generate an binary-void-return builtin.
- *
- * @param kind the builtin kind to generate
- * @param op1 the first operand
- * @param op2 the second operand
- * @param function_type the function type for the GNU builtin routine
- * @param db debug info
- */
-static ir_node *gen_binary_builtin_mem(ir_builtin_kind kind, expression_t *op1,
- expression_t *op2, type_t *function_type,
- dbg_info *db)
-{
- ir_node *in[2];
- in[0] = expression_to_firm(op1);
- in[1] = expression_to_firm(op2);
-
- ir_type *tp = get_ir_type(function_type);
- ir_node *mem = get_store();
- ir_node *irn = new_d_Builtin(db, mem, 2, in, kind, tp);
- set_store(new_Proj(irn, mode_M, pn_Builtin_M));
- return NULL;
-}
-
/**
* Transform calls to builtin functions.
*/
assert(call->function->kind == EXPR_REFERENCE);
reference_expression_t *builtin = &call->function->reference;
- type_t *type = skip_typeref(builtin->base.type);
- assert(is_type_pointer(type));
+ type_t *expr_type = skip_typeref(builtin->base.type);
+ assert(is_type_pointer(expr_type));
- type_t *function_type = skip_typeref(type->pointer.points_to);
+ type_t *function_type = skip_typeref(expr_type->pointer.points_to);
switch (builtin->entity->function.btk) {
- case bk_gnu_builtin_alloca: {
- if (call->arguments == NULL || call->arguments->next != NULL) {
- panic("invalid number of parameters on __builtin_alloca");
- }
+ case BUILTIN_NONE:
+ break;
+ case BUILTIN_ALLOCA: {
expression_t *argument = call->arguments->expression;
ir_node *size = expression_to_firm(argument);
return res;
}
-
- case bk_gnu_builtin_huge_val:
- case bk_gnu_builtin_huge_valf:
- case bk_gnu_builtin_huge_vall:
- case bk_gnu_builtin_inf:
- case bk_gnu_builtin_inff:
- case bk_gnu_builtin_infl: {
- type_t *type = function_type->function.return_type;
- ir_mode *mode = get_ir_mode_arithmetic(type);
- tarval *tv = get_mode_infinite(mode);
- ir_node *res = new_d_Const(dbgi, tv);
- return res;
- }
- case bk_gnu_builtin_nan:
- case bk_gnu_builtin_nanf:
- case bk_gnu_builtin_nanl: {
+ case BUILTIN_INF: {
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
+ ir_tarval *tv = get_mode_infinite(mode);
+ ir_node *res = new_d_Const(dbgi, tv);
+ return res;
+ }
+ case BUILTIN_NAN: {
/* Ignore string for now... */
assert(is_type_function(function_type));
- type_t *type = function_type->function.return_type;
- ir_mode *mode = get_ir_mode_arithmetic(type);
- tarval *tv = get_mode_NAN(mode);
- ir_node *res = new_d_Const(dbgi, tv);
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
+ ir_tarval *tv = get_mode_NAN(mode);
+ ir_node *res = new_d_Const(dbgi, tv);
return res;
}
- case bk_gnu_builtin_expect: {
+ case BUILTIN_EXPECT: {
expression_t *argument = call->arguments->expression;
return _expression_to_firm(argument);
}
- case bk_gnu_builtin_va_end:
+ case BUILTIN_VA_END:
/* evaluate the argument of va_end for its side effects */
_expression_to_firm(call->arguments->expression);
return NULL;
- case bk_gnu_builtin_frame_address: {
- expression_t *const expression = call->arguments->expression;
- bool val = fold_constant_to_bool(expression);
- if (!val) {
- /* the nice case */
- return get_irg_frame(current_ir_graph);
- } else {
- /* get the argument */
- ir_node *in[2];
-
- in[0] = expression_to_firm(expression);
- in[1] = get_irg_frame(current_ir_graph);
- ir_type *tp = get_ir_type(function_type);
- ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), 2, in, ir_bk_frame_address, tp);
- return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
- }
- }
- case bk_gnu_builtin_return_address: {
-
- expression_t *const expression = call->arguments->expression;
- ir_node *in[2];
-
- in[0] = expression_to_firm(expression);
- in[1] = get_irg_frame(current_ir_graph);
- ir_type *tp = get_ir_type(function_type);
- ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), 2, in, ir_bk_return_address, tp);
- return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
- }
- case bk_gnu_builtin_ffs:
- return gen_unary_builtin(ir_bk_ffs, call->arguments->expression, function_type, dbgi);
- case bk_gnu_builtin_clz:
- return gen_unary_builtin(ir_bk_clz, call->arguments->expression, function_type, dbgi);
- case bk_gnu_builtin_ctz:
- return gen_unary_builtin(ir_bk_ctz, call->arguments->expression, function_type, dbgi);
- case bk_gnu_builtin_popcount:
- case bk_ms__popcount:
- return gen_unary_builtin(ir_bk_popcount, call->arguments->expression, function_type, dbgi);
- case bk_gnu_builtin_parity:
- return gen_unary_builtin(ir_bk_parity, call->arguments->expression, function_type, dbgi);
- case bk_gnu_builtin_prefetch: {
- call_argument_t *const args = call->arguments;
- expression_t *const addr = args->expression;
- ir_node *in[3];
-
- in[0] = _expression_to_firm(addr);
- if (args->next != NULL) {
- expression_t *const rw = args->next->expression;
-
- in[1] = _expression_to_firm(rw);
-
- if (args->next->next != NULL) {
- expression_t *const locality = args->next->next->expression;
-
- in[2] = expression_to_firm(locality);
- } else {
- in[2] = new_Const_long(mode_int, 3);
- }
- } else {
- in[1] = new_Const_long(mode_int, 0);
- in[2] = new_Const_long(mode_int, 3);
- }
- ir_type *tp = get_ir_type(function_type);
- ir_node *irn = new_d_Builtin(dbgi, get_store(), 3, in, ir_bk_prefetch, tp);
- set_store(new_Proj(irn, mode_M, pn_Builtin_M));
- return NULL;
- }
- case bk_gnu_builtin_trap:
- case bk_ms__ud2:
- {
- ir_type *tp = get_ir_type(function_type);
- ir_node *irn = new_d_Builtin(dbgi, get_store(), 0, NULL, ir_bk_trap, tp);
- set_store(new_Proj(irn, mode_M, pn_Builtin_M));
- return NULL;
- }
- case bk_ms__debugbreak: {
- ir_type *tp = get_ir_type(function_type);
- ir_node *irn = new_d_Builtin(dbgi, get_store(), 0, NULL, ir_bk_debugbreak, tp);
- set_store(new_Proj(irn, mode_M, pn_Builtin_M));
- return NULL;
- }
- case bk_ms_ReturnAddress: {
- ir_node *in[2];
-
- in[0] = new_Const_long(mode_int, 0);
- in[1] = get_irg_frame(current_ir_graph);
- ir_type *tp = get_ir_type(function_type);
- ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), 2, in, ir_bk_return_address, tp);
- return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
- }
- case bk_ms_rotl:
- case bk_ms_rotl64: {
+ case BUILTIN_OBJECT_SIZE: {
+ /* determine value of "type" */
+ expression_t *type_expression = call->arguments->next->expression;
+ long type_val = fold_constant_to_int(type_expression);
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
+ /* just produce a "I don't know" result */
+ ir_tarval *result = type_val & 2 ? get_mode_null(mode) :
+ get_mode_minus_one(mode);
+
+ return new_d_Const(dbgi, result);
+ }
+ case BUILTIN_ROTL: {
ir_node *val = expression_to_firm(call->arguments->expression);
ir_node *shf = expression_to_firm(call->arguments->next->expression);
ir_mode *mode = get_irn_mode(val);
return new_d_Rotl(dbgi, val, create_conv(dbgi, shf, mode_uint), mode);
}
- case bk_ms_rotr:
- case bk_ms_rotr64: {
+ case BUILTIN_ROTR: {
ir_node *val = expression_to_firm(call->arguments->expression);
ir_node *shf = expression_to_firm(call->arguments->next->expression);
ir_mode *mode = get_irn_mode(val);
ir_node *sub = new_d_Sub(dbgi, c, create_conv(dbgi, shf, mode_uint), mode_uint);
return new_d_Rotl(dbgi, val, sub, mode);
}
- case bk_ms_byteswap_ushort:
- case bk_ms_byteswap_ulong:
- case bk_ms_byteswap_uint64:
- return gen_unary_builtin(ir_bk_bswap, call->arguments->expression, function_type, dbgi);
- case bk_ms__inbyte:
- case bk_ms__inword:
- case bk_ms__indword:
- return gen_unary_builtin_pinned(ir_bk_inport, call->arguments->expression, function_type, dbgi);
- case bk_ms__outbyte:
- case bk_ms__outword:
- case bk_ms__outdword:
- return gen_binary_builtin_mem(ir_bk_outport, call->arguments->expression,
- call->arguments->next->expression, function_type, dbgi);
- default:
- panic("unsupported builtin found");
+ case BUILTIN_FIRM:
+ break;
+ case BUILTIN_LIBC:
+ case BUILTIN_LIBC_CHECK:
+ panic("builtin did not produce an entity");
}
+ panic("invalid builtin found");
}
/**
static ir_node *call_expression_to_firm(const call_expression_t *const call)
{
dbg_info *const dbgi = get_dbg_info(&call->base.source_position);
- assert(get_cur_block() != NULL);
+ assert(currently_reachable());
- expression_t *function = call->function;
+ expression_t *function = call->function;
+ ir_node *callee = NULL;
+ bool firm_builtin = false;
+ ir_builtin_kind firm_builtin_kind = ir_bk_trap;
if (function->kind == EXPR_REFERENCE) {
const reference_expression_t *ref = &function->reference;
entity_t *entity = ref->entity;
if (entity->kind == ENTITY_FUNCTION) {
- ir_entity *irentity = entity->function.irentity;
- if (irentity == NULL)
- irentity = get_function_entity(entity, NULL);
-
- if (irentity == NULL && entity->function.btk != bk_none) {
+ builtin_kind_t builtin = entity->function.btk;
+ if (builtin == BUILTIN_FIRM) {
+ firm_builtin = true;
+ firm_builtin_kind = entity->function.b.firm_builtin_kind;
+ } else if (builtin != BUILTIN_NONE && builtin != BUILTIN_LIBC
+ && builtin != BUILTIN_LIBC_CHECK) {
return process_builtin_call(call);
}
-
- if (irentity == rts_entities[rts_alloca]) {
- /* handle alloca() call */
- expression_t *argument = call->arguments->expression;
- ir_node *size = expression_to_firm(argument);
- ir_mode *mode = get_ir_mode_arithmetic(type_size_t);
-
- size = create_conv(dbgi, size, mode);
-
- ir_node *store = get_store();
- ir_node *alloca = new_d_Alloc(dbgi, store, size,
- firm_unknown_type, stack_alloc);
- ir_node *proj_m = new_Proj(alloca, mode_M, pn_Alloc_M);
- set_store(proj_m);
- ir_node *res = new_Proj(alloca, mode_P_data, pn_Alloc_res);
-
- return res;
- }
}
}
- ir_node *callee = expression_to_firm(function);
+ if (!firm_builtin)
+ callee = expression_to_firm(function);
type_t *type = skip_typeref(function->base.type);
assert(is_type_pointer(type));
assert(is_type_function(points_to));
function_type_t *function_type = &points_to->function;
- int n_parameters = 0;
+ int n_parameters = 0;
ir_type *ir_method_type = get_ir_type((type_t*) function_type);
ir_type *new_method_type = NULL;
if (function_type->variadic || function_type->unspecified_parameters) {
expression_t *expression = argument->expression;
ir_node *arg_node = expression_to_firm(expression);
- type_t *type = skip_typeref(expression->base.type);
- if (!is_type_compound(type)) {
+ 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);
argument = argument->next;
}
- ir_node *store = get_store();
- ir_node *node = new_d_Call(dbgi, store, callee, n_parameters, in,
- ir_method_type);
- ir_node *mem = new_d_Proj(dbgi, node, mode_M, pn_Call_M);
- set_store(mem);
+ ir_node *store;
+ if (function_type->modifiers & DM_CONST) {
+ store = get_irg_no_mem(current_ir_graph);
+ } else {
+ store = get_store();
+ }
+ ir_node *node;
type_t *return_type = skip_typeref(function_type->return_type);
ir_node *result = NULL;
+ if (firm_builtin) {
+ node = new_d_Builtin(dbgi, store, n_parameters, in, firm_builtin_kind,
+ ir_method_type);
+ if (! (function_type->modifiers & DM_CONST)) {
+ ir_node *mem = new_Proj(node, mode_M, pn_Builtin_M);
+ set_store(mem);
+ }
- if (!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
- ir_node *resproj = new_d_Proj(dbgi, node, mode_T, pn_Call_T_result);
-
- if (is_type_scalar(return_type)) {
- ir_mode *mode = get_ir_mode_storage(return_type);
- result = new_d_Proj(dbgi, resproj, mode, 0);
+ if (!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
+ assert(is_type_scalar(return_type));
+ ir_mode *mode = get_ir_mode_storage(return_type);
+ result = new_Proj(node, mode, pn_Builtin_1_result);
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_d_Proj(dbgi, resproj, mode, 0);
+ }
+ } else {
+ node = new_d_Call(dbgi, store, callee, n_parameters, in, ir_method_type);
+ if (! (function_type->modifiers & DM_CONST)) {
+ ir_node *mem = new_Proj(node, mode_M, pn_Call_M);
+ 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);
+ }
}
}
}
}
-static tarval *create_bitfield_mask(ir_mode *mode, int offset, int size)
+static ir_tarval *create_bitfield_mask(ir_mode *mode, int offset, int size)
{
- tarval *all_one = get_mode_all_one(mode);
- int mode_size = get_mode_size_bits(mode);
+ ir_tarval *all_one = get_mode_all_one(mode);
+ int mode_size = get_mode_size_bits(mode);
assert(offset >= 0);
assert(size >= 0);
return all_one;
}
- long shiftr = get_mode_size_bits(mode) - size;
- long shiftl = offset;
- tarval *tv_shiftr = new_tarval_from_long(shiftr, mode_uint);
- tarval *tv_shiftl = new_tarval_from_long(shiftl, mode_uint);
- tarval *mask0 = tarval_shr(all_one, tv_shiftr);
- tarval *mask1 = tarval_shl(mask0, tv_shiftl);
+ long shiftr = get_mode_size_bits(mode) - size;
+ long shiftl = offset;
+ ir_tarval *tv_shiftr = new_tarval_from_long(shiftr, mode_uint);
+ ir_tarval *tv_shiftl = new_tarval_from_long(shiftl, mode_uint);
+ ir_tarval *mask0 = tarval_shr(all_one, tv_shiftr);
+ ir_tarval *mask1 = tarval_shl(mask0, tv_shiftl);
return mask1;
}
value = create_conv(dbgi, value, mode);
/* kill upper bits of value and shift to right position */
- int bitoffset = get_entity_offset_bits_remainder(entity);
- 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, 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, shiftl);
- ir_node *value_maskshift = new_d_Shl(dbgi, value_masked, shiftcount, mode);
+ int bitoffset = get_entity_offset_bits_remainder(entity);
+ int bitsize = get_mode_size_bits(get_type_mode(entity_type));
+ ir_tarval *mask = create_bitfield_mask(mode, 0, bitsize);
+ ir_node *mask_node = new_d_Const(dbgi, mask);
+ ir_node *value_masked = new_d_And(dbgi, value, mask_node, mode);
+ ir_tarval *shiftl = new_tarval_from_long(bitoffset, mode_uint);
+ 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 *mem = get_store();
- ir_node *load = new_d_Load(dbgi, mem, addr, mode,
- set_volatile ? cons_volatile : cons_none);
- ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
- 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, inv_mask);
- ir_node *load_res_masked = new_d_And(dbgi, load_res, inv_mask_node, mode);
+ ir_node *mem = get_store();
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode,
+ set_volatile ? cons_volatile : cons_none);
+ ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
+ ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
+ ir_tarval *shift_mask = create_bitfield_mask(mode, bitoffset, bitsize);
+ ir_tarval *inv_mask = tarval_not(shift_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 */
ir_node *new_val = new_d_Or(dbgi, load_res_masked, value_maskshift, mode);
}
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);
- type_t *type = expression->base.type;
- ir_mode *mode = get_ir_mode_storage(type);
- ir_node *mem = get_store();
- ir_node *load = new_d_Load(dbgi, mem, addr, mode, cons_none);
- ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
- ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
-
- load_res = create_conv(dbgi, load_res, mode_int);
+ ir_node *addr)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ entity_t *entity = expression->compound_entry;
+ type_t *base_type = entity->declaration.type;
+ ir_mode *mode = get_ir_mode_storage(base_type);
+ ir_node *mem = get_store();
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode, cons_none);
+ ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
+ ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
+
+ ir_mode *amode = mode;
+ /* optimisation, since shifting in modes < machine_size is usually
+ * less efficient */
+ if (get_mode_size_bits(amode) < get_mode_size_bits(mode_uint)) {
+ amode = mode_uint;
+ }
+ unsigned amode_size = get_mode_size_bits(amode);
+ load_res = create_conv(dbgi, load_res, amode);
set_store(load_mem);
/* kill upper bits */
assert(expression->compound_entry->kind == ENTITY_COMPOUND_MEMBER);
- ir_entity *entity = expression->compound_entry->compound_member.entity;
- int bitoffset = get_entity_offset_bits_remainder(entity);
- ir_type *entity_type = get_entity_type(entity);
- int bitsize = get_mode_size_bits(get_type_mode(entity_type));
- 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, 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, tvr);
+ int bitoffset = entity->compound_member.bit_offset;
+ int bitsize = entity->compound_member.bit_size;
+ unsigned shift_bitsl = amode_size - bitoffset - bitsize;
+ ir_tarval *tvl = new_tarval_from_long((long)shift_bitsl, mode_uint);
+ ir_node *countl = new_d_Const(dbgi, tvl);
+ ir_node *shiftl = new_d_Shl(dbgi, load_res, countl, amode);
+
+ unsigned shift_bitsr = bitoffset + shift_bitsl;
+ assert(shift_bitsr <= amode_size);
+ ir_tarval *tvr = new_tarval_from_long((long)shift_bitsr, mode_uint);
+ 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);
+ shiftr = new_d_Shrs(dbgi, shiftl, countr, amode);
} else {
- shiftr = new_d_Shr(dbgi, shiftl, countr, mode_int);
+ shiftr = new_d_Shr(dbgi, shiftl, countr, amode);
}
- return create_conv(dbgi, shiftr, mode);
+ type_t *type = expression->base.type;
+ ir_mode *resmode = get_ir_mode_arithmetic(type);
+ return create_conv(dbgi, shiftr, resmode);
}
/* make sure the selected compound type is constructed */
entity_t *entity = select->compound_entry;
assert(entity->kind == ENTITY_COMPOUND_MEMBER);
- if (entity->declaration.type->kind == TYPE_BITFIELD) {
+ if (entity->compound_member.bitfield) {
ir_entity *irentity = entity->compound_member.entity;
bool set_volatile
= select->base.type->base.qualifiers & TYPE_QUALIFIER_VOLATILE;
ir_node *value;
if (expression->kind == EXPR_SELECT &&
- expression->select.compound_entry->declaration.type->kind == TYPE_BITFIELD){
+ expression->select.compound_entry->compound_member.bitfield) {
construct_select_compound(&expression->select);
value = bitfield_extract_to_firm(&expression->select, addr);
} else {
return entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE;
}
-static pn_Cmp get_pnc(const expression_kind_t kind, type_t *const type)
+static ir_relation get_relation(const expression_kind_t kind)
{
switch(kind) {
- case EXPR_BINARY_EQUAL: return pn_Cmp_Eq;
- case EXPR_BINARY_ISLESSGREATER: return pn_Cmp_Lg;
- case EXPR_BINARY_NOTEQUAL:
- return is_type_float(skip_typeref(type)) ? pn_Cmp_Ne : pn_Cmp_Lg;
+ case EXPR_BINARY_EQUAL: return ir_relation_equal;
+ case EXPR_BINARY_ISLESSGREATER: return ir_relation_less_greater;
+ case EXPR_BINARY_NOTEQUAL: return ir_relation_unordered_less_greater;
case EXPR_BINARY_ISLESS:
- case EXPR_BINARY_LESS: return pn_Cmp_Lt;
+ case EXPR_BINARY_LESS: return ir_relation_less;
case EXPR_BINARY_ISLESSEQUAL:
- case EXPR_BINARY_LESSEQUAL: return pn_Cmp_Le;
+ case EXPR_BINARY_LESSEQUAL: return ir_relation_less_equal;
case EXPR_BINARY_ISGREATER:
- case EXPR_BINARY_GREATER: return pn_Cmp_Gt;
+ case EXPR_BINARY_GREATER: return ir_relation_greater;
case EXPR_BINARY_ISGREATEREQUAL:
- case EXPR_BINARY_GREATEREQUAL: return pn_Cmp_Ge;
- case EXPR_BINARY_ISUNORDERED: return pn_Cmp_Uo;
+ case EXPR_BINARY_GREATEREQUAL: return ir_relation_greater_equal;
+ case EXPR_BINARY_ISUNORDERED: return ir_relation_unordered;
default:
break;
expression_t *op1 = expression->left;
expression_t *op2 = expression->right;
entity_t *var2, *var = NULL;
- ir_node *res = NULL;
- pn_Cmp cmp_val;
-
- cmp_val = get_pnc(expression->base.kind, op1->base.type);
+ ir_node *res = NULL;
+ ir_relation relation = get_relation(expression->base.kind);
if (is_local_variable(op1) && is_local_variable(op2)) {
- var = op1->reference.entity;
+ var = op1->reference.entity;
var2 = op2->reference.entity;
type_t *const type = skip_typeref(var->declaration.type);
ir_node *const irn1 = get_value(var->variable.v.value_number, mode);
ir_node *const irn2 = get_value(var2->variable.v.value_number, mode);
- res = new_d_Confirm(dbi, irn2, irn1, get_inversed_pnc(cmp_val));
+ res = new_d_Confirm(dbi, irn2, irn1, get_inversed_relation(relation));
set_value(var2->variable.v.value_number, res);
- res = new_d_Confirm(dbi, irn1, irn2, cmp_val);
+ res = new_d_Confirm(dbi, irn1, irn2, relation);
set_value(var->variable.v.value_number, res);
return res;
}
- expression_t *con;
- if (is_local_variable(op1) && is_constant_expression(op2)) {
+ expression_t *con = NULL;
+ if (is_local_variable(op1) && is_constant_expression(op2) == EXPR_CLASS_CONSTANT) {
var = op1->reference.entity;
con = op2;
- } else if (is_constant_expression(op1) && is_local_variable(op2)) {
- cmp_val = get_inversed_pnc(cmp_val);
+ } else if (is_constant_expression(op1) == EXPR_CLASS_CONSTANT && is_local_variable(op2)) {
+ relation = get_inversed_relation(relation);
var = op2->reference.entity;
con = op1;
}
ir_mode *const mode = get_ir_mode_storage(type);
res = get_value(var->variable.v.value_number, mode);
- res = new_d_Confirm(dbi, res, expression_to_firm(con), cmp_val);
+ res = new_d_Confirm(dbi, res, expression_to_firm(con), relation);
set_value(var->variable.v.value_number, res);
}
return res;
}
}
-static ir_node *create_cast(dbg_info *dbgi, ir_node *value_node,
+static ir_node *create_cast(dbg_info *dbgi, ir_node *value_node,
type_t *from_type, type_t *type)
{
type = skip_typeref(type);
+ if (type == type_void) {
+ /* make sure firm type is constructed */
+ (void) get_ir_type(type);
+ return NULL;
+ }
if (!is_type_scalar(type)) {
/* make sure firm type is constructed */
(void) get_ir_type(type);
const variable_t *to_var = type->pointer.base_variable;
if (from_var != to_var) {
if (from_var != NULL) {
- ir_node *const addr = get_global_var_address(dbgi, from_var);
+ 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));
}
if (to_var != NULL) {
- ir_node *const addr = get_global_var_address(dbgi, to_var);
+ ir_node *const addr = create_symconst(dbgi, to_var->v.entity);
ir_node *const base = deref_address(dbgi, to_var->base.type, addr);
value_node = new_d_Sub(dbgi, value_node, base, mode);
}
/* check for __based */
const variable_t *const base_var = value_type->pointer.base_variable;
if (base_var != NULL) {
- ir_node *const addr = get_global_var_address(dbgi, base_var);
+ ir_node *const addr = create_symconst(dbgi, base_var->v.entity);
ir_node *const base = deref_address(dbgi, base_var->base.type, addr);
value_node = new_d_Add(dbgi, value_node, base, get_ir_mode_storage(value_type));
}
case EXPR_UNARY_PREFIX_INCREMENT:
case EXPR_UNARY_PREFIX_DECREMENT:
return create_incdec(expression);
- case EXPR_UNARY_CAST_IMPLICIT:
case EXPR_UNARY_CAST: {
ir_node *value_node = expression_to_firm(value);
type_t *from_type = value->base.type;
return create_cast(dbgi, value_node, from_type, type);
}
case EXPR_UNARY_ASSUME:
- if (firm_opt.confirm)
- return handle_assume(dbgi, value);
- else
- return NULL;
+ return handle_assume(dbgi, value);
default:
break;
static ir_node *produce_condition_result(const expression_t *expression,
ir_mode *mode, dbg_info *dbgi)
{
- ir_node *cur_block = get_cur_block();
-
- ir_node *one_block = new_immBlock();
- 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();
- 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);
+ ir_node *const one_block = new_immBlock();
+ ir_node *const zero_block = new_immBlock();
create_condition_evaluation(expression, one_block, zero_block);
mature_immBlock(one_block);
mature_immBlock(zero_block);
- ir_node *in_cf[2] = { jmp_one, jmp_zero };
- ir_node *block = new_Block(2, in_cf);
+ 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 *in[2] = { one, zero };
- ir_node *val = new_d_Phi(dbgi, 2, in, mode);
+ ir_node *const one = new_Const(get_mode_one(mode));
+ ir_node *const zero = new_Const(get_mode_null(mode));
+ ir_node *const in[2] = { one, zero };
+ ir_node *const val = new_d_Phi(dbgi, lengthof(in), in, mode);
return val;
}
case EXPR_BINARY_SHIFTRIGHT:
case EXPR_BINARY_SHIFTLEFT_ASSIGN:
case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
- mode = get_irn_mode(left);
+ mode = get_ir_mode_arithmetic(expression->base.type);
right = create_conv(dbgi, right, mode_uint);
break;
case EXPR_BINARY_DIV:
case EXPR_BINARY_DIV_ASSIGN: {
ir_node *pin = new_Pin(new_NoMem());
- ir_node *op;
- ir_node *res;
- if (mode_is_float(mode)) {
- op = new_d_Quot(dbgi, pin, left, right, mode, op_pin_state_floats);
- res = new_d_Proj(dbgi, op, mode, pn_Quot_res);
- } else {
- op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats);
- res = new_d_Proj(dbgi, op, mode, pn_Div_res);
- }
+ ir_node *op = new_d_Div(dbgi, pin, left, right, mode,
+ op_pin_state_floats);
+ ir_node *res = new_d_Proj(dbgi, op, mode, pn_Div_res);
return res;
}
case EXPR_BINARY_MOD:
type_t *type = skip_typeref(expression->base.type);
ir_mode *mode = get_ir_mode_arithmetic(type);
- if (is_constant_expression(expression->left)) {
+ if (is_constant_expression(expression->left) == EXPR_CLASS_CONSTANT) {
bool val = fold_constant_to_bool(expression->left);
expression_kind_t ekind = expression->base.kind;
assert(ekind == EXPR_BINARY_LOGICAL_AND || ekind == EXPR_BINARY_LOGICAL_OR);
}
}
- if (is_constant_expression(expression->right)) {
+ if (is_constant_expression(expression->right) == EXPR_CLASS_CONSTANT) {
bool valr = fold_constant_to_bool(expression->right);
- return valr ?
- new_Const(get_mode_one(mode)) :
- new_Const(get_mode_null(mode));
+ return create_Const_from_bool(mode, valr);
}
return produce_condition_result(expression->right, mode, dbgi);
case EXPR_BINARY_ISLESSEQUAL:
case EXPR_BINARY_ISLESSGREATER:
case EXPR_BINARY_ISUNORDERED: {
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *left = expression_to_firm(expression->left);
- ir_node *right = expression_to_firm(expression->right);
- ir_node *cmp = new_d_Cmp(dbgi, left, right);
- long pnc = get_pnc(kind, expression->left->base.type);
- ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pnc);
- return proj;
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_node *left = expression_to_firm(expression->left);
+ ir_node *right = expression_to_firm(expression->right);
+ ir_relation relation = get_relation(kind);
+ ir_node *cmp = new_d_Cmp(dbgi, left, right, relation);
+ return cmp;
}
case EXPR_BINARY_ASSIGN: {
ir_node *addr = expression_to_addr(expression->left);
static ir_node *offsetof_to_firm(const offsetof_expression_t *expression)
{
- ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- long offset = get_offsetof_offset(expression);
- tarval *tv = new_tarval_from_long(offset, mode);
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ 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);
return new_d_Const(dbgi, tv);
}
&& 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) {
- alignment = get_cparser_entity_alignment(entity);
+ if (entity->kind == ENTITY_FUNCTION) {
+ /* a gnu-extension */
+ alignment = 1;
+ } else {
+ alignment = get_cparser_entity_alignment(entity);
+ }
}
}
alignment = get_type_alignment(type);
}
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- tarval *tv = new_tarval_from_long(alignment, mode);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ 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 tarval *fold_constant_to_tarval(const expression_t *expression)
+static ir_tarval *fold_constant_to_tarval(const expression_t *expression)
{
assert(is_type_valid(skip_typeref(expression->base.type)));
init_ir_types();
- assert(is_constant_expression(expression));
+ assert(is_constant_expression(expression) == EXPR_CLASS_CONSTANT);
ir_graph *old_current_ir_graph = current_ir_graph;
current_ir_graph = get_const_code_irg();
constant_folding = constant_folding_old;
- tarval *tv = get_Const_tarval(cnst);
- return tv;
+ return get_Const_tarval(cnst);
+}
+
+/* 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_INVALID)
+ if (expression->kind == EXPR_ERROR)
return 0;
- tarval *tv = fold_constant_to_tarval(expression);
+ 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_INVALID)
+ if (expression->kind == EXPR_ERROR)
return false;
- tarval *tv = fold_constant_to_tarval(expression);
+ ir_tarval *tv = fold_constant_to_tarval(expression);
return !tarval_is_null(tv);
}
dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
/* first try to fold a constant condition */
- if (is_constant_expression(expression->condition)) {
+ if (is_constant_expression(expression->condition) == EXPR_CLASS_CONSTANT) {
bool val = fold_constant_to_bool(expression->condition);
if (val) {
expression_t *true_expression = expression->true_expression;
}
}
- ir_node *cur_block = get_cur_block();
+ 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);
- /* create the true block */
- ir_node *true_block = new_immBlock();
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);
- ir_node *true_val = expression->true_expression != NULL ?
- expression_to_firm(expression->true_expression) : NULL;
- ir_node *true_jmp = new_Jmp();
-
- /* 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();
-
- /* create the condition evaluation */
- set_cur_block(cur_block);
- ir_node *const cond_expr = create_condition_evaluation(expression->condition, true_block, false_block);
- if (expression->true_expression == NULL) {
- 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));
- }
- }
- mature_immBlock(true_block);
- mature_immBlock(false_block);
+ ir_node *const false_val = expression_to_firm(expression->false_expression);
+ ir_node *const false_jmp = new_d_Jmp(dbgi);
/* create the common block */
- ir_node *in_cf[2] = { true_jmp, false_jmp };
- ir_node *block = new_Block(2, in_cf);
+ ir_node *const in_cf[2] = { true_jmp, false_jmp };
+ ir_node *const block = new_Block(lengthof(in_cf), in_cf);
set_cur_block(block);
/* TODO improve static semantics, so either both or no values are NULL */
if (true_val == NULL || false_val == NULL)
return NULL;
- ir_node *in[2] = { true_val, false_val };
- ir_mode *mode = get_irn_mode(true_val);
- assert(get_irn_mode(false_val) == mode);
- ir_node *val = new_d_Phi(dbgi, 2, in, mode);
+ 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);
+ }
+ ir_node *const val = new_d_Phi(dbgi, lengthof(in), in, mode);
return val;
}
(const expression_t*) expression);
type = skip_typeref(type);
- entity_t *entry = expression->compound_entry;
+ entity_t *entry = expression->compound_entry;
assert(entry->kind == ENTITY_COMPOUND_MEMBER);
- type_t *entry_type = skip_typeref(entry->declaration.type);
- if (entry_type->kind == TYPE_BITFIELD) {
+ if (entry->compound_member.bitfield) {
return bitfield_extract_to_firm(expression, addr);
}
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;
/* 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;
}
}
make_const:;
- dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
- tarval *const tv = new_tarval_from_long(tc, mode_int);
+ dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
+ ir_tarval *const tv = new_tarval_from_long(tc, mode_int);
return new_d_Const(dbgi, tv);
}
static ir_node *va_start_expression_to_firm(
const va_start_expression_t *const expr)
{
- type_t *const type = current_function_entity->declaration.type;
- ir_type *const method_type = get_ir_type(type);
- int const n = get_method_n_params(method_type) - 1;
- ir_entity *const parm_ent = get_method_value_param_ent(method_type, n);
- ir_node *const frame = get_irg_frame(current_ir_graph);
- dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
- ir_node *const no_mem = new_NoMem();
- ir_node *const arg_sel =
- new_d_simpleSel(dbgi, no_mem, frame, parm_ent);
-
- type_t *const param_type = expr->parameter->base.type;
- ir_node *const cnst = get_type_size_node(param_type);
- ir_mode *const mode = get_irn_mode(cnst);
- ir_node *const c1 = new_Const_long(mode, stack_param_align - 1);
- ir_node *const c2 = new_d_Add(dbgi, cnst, c1, mode);
- ir_node *const c3 = new_Const_long(mode, -(long)stack_param_align);
- ir_node *const c4 = new_d_And(dbgi, c2, c3, mode);
- ir_node *const add = new_d_Add(dbgi, arg_sel, c4, mode_P_data);
- set_value_for_expression(expr->ap, add);
+ ir_entity *param_ent = current_vararg_entity;
+ if (param_ent == NULL) {
+ size_t const n = IR_VA_START_PARAMETER_NUMBER;
+ ir_type *const frame_type = get_irg_frame_type(current_ir_graph);
+ ir_type *const param_type = get_unknown_type();
+ param_ent = new_parameter_entity(frame_type, n, param_type);
+ current_vararg_entity = param_ent;
+ }
+
+ ir_node *const frame = get_irg_frame(current_ir_graph);
+ dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const arg_sel = new_d_simpleSel(dbgi, no_mem, frame, param_ent);
+
+ set_value_for_expression(expr->ap, arg_sel);
return NULL;
}
static ir_node *builtin_constant_to_firm(
const builtin_constant_expression_t *expression)
{
- ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- long v;
-
- if (is_constant_expression(expression->value)) {
- v = 1;
- } else {
- v = 0;
- }
- return new_Const_long(mode, v);
+ ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type);
+ bool const v = is_constant_expression(expression->value) == EXPR_CLASS_CONSTANT;
+ return create_Const_from_bool(mode, v);
}
static ir_node *builtin_types_compatible_to_firm(
{
type_t *const left = get_unqualified_type(skip_typeref(expression->left));
type_t *const right = get_unqualified_type(skip_typeref(expression->right));
- long const value = types_compatible(left, right) ? 1 : 0;
+ bool const value = types_compatible(left, right);
ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type);
- return new_Const_long(mode, value);
+ return create_Const_from_bool(mode, value);
}
static ir_node *get_label_block(label_t *label)
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
case EXPR_LABEL_ADDRESS:
return label_address_to_firm(&expression->label_address);
- case EXPR_UNKNOWN:
- case EXPR_INVALID:
- break;
+ case EXPR_ERROR:
+ return error_to_firm(expression);
}
panic("invalid expression found");
}
return false;
reference_expression_t *ref = &function->reference;
if (ref->entity->kind != ENTITY_FUNCTION ||
- ref->entity->function.btk != bk_gnu_builtin_expect)
+ ref->entity->function.btk != BUILTIN_EXPECT)
return false;
return true;
return res;
}
- if (is_constant_expression(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));
- if (is_Const_null(res)) {
- return new_Const_long(mode, 0);
- } else {
- return new_Const_long(mode, 1);
- }
+ return create_Const_from_bool(mode, !is_Const_null(res));
}
/* we have to produce a 0/1 from the mode_b expression */
/* 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)) {
- bool cnst = fold_constant_to_bool(argument->expression);
- cond_jmp_predicate pred;
-
- if (cnst == false) {
- pred = COND_JMP_PRED_FALSE;
- } else {
- pred = COND_JMP_PRED_TRUE;
- }
+ if (is_constant_expression(argument->expression) == EXPR_CLASS_CONSTANT) {
+ bool const cnst = fold_constant_to_bool(argument->expression);
+ cond_jmp_predicate const pred = cnst ? COND_JMP_PRED_TRUE : COND_JMP_PRED_FALSE;
set_Cond_jmp_pred(cond, pred);
}
}
add_immBlock_pred(true_block, true_proj);
add_immBlock_pred(false_block, false_proj);
- set_cur_block(NULL);
+ set_unreachable_now();
return cond_expr;
}
/* we're past the last member of the current sub-aggregate, try if we
* can ascend in the type hierarchy and continue with another subobject */
- size_t len = ARR_LEN(path->path);
+ size_t len = ARR_LEN(path->path);
if (len > 1) {
ascend_from_subtype(path);
}
type_t *type = initializer->value->base.type;
expression_t *expr = initializer->value;
- if (initializer_use_bitfield_basetype) {
- type_t *skipped = skip_typeref(type);
- if (skipped->kind == TYPE_BITFIELD) {
- /* remove the bitfield cast... */
- assert(expr->kind == EXPR_UNARY_CAST_IMPLICIT);
- expr = expr->unary.value;
- type = skipped->bitfield.base_type;
- }
- }
ir_node *value = expression_to_firm(expr);
ir_mode *mode = get_ir_mode_storage(type);
value = create_conv(NULL, value, mode);
if (i < string_len)
c = string[i];
- tarval *tv = new_tarval_from_long(c, mode);
+ 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);
if (i < string_len) {
c = read_utf8_char(&p);
}
- tarval *tv = new_tarval_from_long(c, mode);
+ 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);
panic("unknown initializer");
}
+/** ANSI C §6.7.8:21: If there are fewer initializers [..] than there
+ * are elements [...] the remainder of the aggregate shall be initialized
+ * implicitly the same as objects that have static storage duration. */
+static void create_dynamic_null_initializer(ir_entity *entity, dbg_info *dbgi,
+ ir_node *base_addr)
+{
+ /* for unions we must NOT do anything for null initializers */
+ ir_type *owner = get_entity_owner(entity);
+ if (is_Union_type(owner)) {
+ return;
+ }
+
+ ir_type *ent_type = get_entity_type(entity);
+ /* create sub-initializers for a compound type */
+ if (is_compound_type(ent_type)) {
+ unsigned n_members = get_compound_n_members(ent_type);
+ for (unsigned n = 0; n < n_members; ++n) {
+ ir_entity *member = get_compound_member(ent_type, n);
+ ir_node *addr = new_d_simpleSel(dbgi, new_NoMem(), base_addr,
+ member);
+ create_dynamic_null_initializer(member, dbgi, addr);
+ }
+ return;
+ }
+ if (is_Array_type(ent_type)) {
+ assert(has_array_upper_bound(ent_type, 0));
+ long n = get_array_upper_bound_int(ent_type, 0);
+ for (long i = 0; i < n; ++i) {
+ ir_tarval *index_tv = new_tarval_from_long(i, mode_uint);
+ ir_node *cnst = new_d_Const(dbgi, index_tv);
+ ir_node *in[1] = { cnst };
+ ir_entity *arrent = get_array_element_entity(ent_type);
+ ir_node *addr = new_d_Sel(dbgi, new_NoMem(), base_addr, 1, in,
+ arrent);
+ create_dynamic_null_initializer(arrent, dbgi, addr);
+ }
+ return;
+ }
+
+ ir_mode *value_mode = get_type_mode(ent_type);
+ ir_node *node = new_Const(get_mode_null(value_mode));
+
+ /* is it a bitfield type? */
+ if (is_Primitive_type(ent_type) &&
+ get_primitive_base_type(ent_type) != NULL) {
+ bitfield_store_to_firm(dbgi, entity, base_addr, node, false);
+ return;
+ }
+
+ 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);
+}
+
static void create_dynamic_initializer_sub(ir_initializer_t *initializer,
ir_entity *entity, ir_type *type, dbg_info *dbgi, ir_node *base_addr)
{
switch(get_initializer_kind(initializer)) {
- case IR_INITIALIZER_NULL: {
- /* NULL is undefined for dynamic initializers */
+ case IR_INITIALIZER_NULL:
+ create_dynamic_null_initializer(entity, dbgi, base_addr);
return;
- }
case IR_INITIALIZER_CONST: {
ir_node *node = get_initializer_const_value(initializer);
ir_type *ent_type = get_entity_type(entity);
return;
}
case IR_INITIALIZER_TARVAL: {
- tarval *tv = get_initializer_tarval_value(initializer);
- ir_node *cnst = new_d_Const(dbgi, tv);
- ir_type *ent_type = get_entity_type(entity);
+ ir_tarval *tv = get_initializer_tarval_value(initializer);
+ ir_node *cnst = new_d_Const(dbgi, tv);
+ ir_type *ent_type = get_entity_type(entity);
/* is it a bitfield type? */
if (is_Primitive_type(ent_type) &&
ir_type *irtype;
ir_entity *sub_entity;
if (is_Array_type(type)) {
- tarval *index_tv = new_tarval_from_long(i, mode_uint);
+ ir_tarval *index_tv = new_tarval_from_long(i, mode_uint);
ir_node *cnst = new_d_Const(dbgi, index_tv);
ir_node *in[1] = { cnst };
irtype = get_array_element_type(type);
return;
}
- if (!is_constant_initializer(initializer)) {
- bool old_initializer_use_bitfield_basetype
- = initializer_use_bitfield_basetype;
- initializer_use_bitfield_basetype = true;
+ if (is_constant_initializer(initializer) == EXPR_CLASS_VARIABLE) {
ir_initializer_t *irinitializer
= create_ir_initializer(initializer, type);
- initializer_use_bitfield_basetype
- = old_initializer_use_bitfield_basetype;
create_dynamic_initializer(irinitializer, dbgi, entity);
return;
set_entity_initializer(init_entity, irinitializer);
- ir_node *const src_addr = create_symconst(dbgi, mode_P_data, init_entity);
+ ir_node *const src_addr = create_symconst(dbgi, init_entity);
ir_node *const copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype);
ir_node *const copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M);
ir_node *value = expression_to_firm(initializer_value->value);
- type_t *type = initializer_value->value->base.type;
- ir_mode *mode = get_ir_mode_storage(type);
+ type_t *init_type = initializer_value->value->base.type;
+ ir_mode *mode = get_ir_mode_storage(init_type);
value = create_conv(dbgi, value, mode);
value = do_strict_conv(dbgi, value);
{
assert(entity->kind == ENTITY_VARIABLE);
assert(entity->variable.initializer == NULL);
- assert(get_cur_block() != NULL);
+ assert(currently_reachable());
dbg_info *dbgi = get_dbg_info(&entity->base.source_position);
type_t *type = entity->declaration.type;
static void return_statement_to_firm(return_statement_t *statement)
{
- if (get_cur_block() == NULL)
+ if (!currently_reachable())
return;
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) {
if (statement->value != NULL) {
ir_node *node = expression_to_firm(statement->value);
if (!is_compound_type(res_type)) {
- type_t *type = statement->value->base.type;
- ir_mode *mode = get_ir_mode_storage(type);
- node = create_conv(dbgi, node, mode);
- node = do_strict_conv(dbgi, node);
+ 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;
} else {
ir_node *end_block = get_irg_end_block(current_ir_graph);
add_immBlock_pred(end_block, ret);
- set_cur_block(NULL);
+ set_unreachable_now();
}
static ir_node *expression_statement_to_firm(expression_statement_t *statement)
{
- if (get_cur_block() == NULL)
+ if (!currently_reachable())
return NULL;
return expression_to_firm(statement->expression);
static void create_global_variable(entity_t *entity)
{
- ir_linkage linkage = 0;
+ ir_linkage linkage = IR_LINKAGE_DEFAULT;
ir_visibility visibility = ir_visibility_default;
ir_entity *irentity;
assert(entity->kind == ENTITY_VARIABLE);
// no need to emit code in dead blocks
if (entity->declaration.storage_class != STORAGE_CLASS_STATIC
- && get_cur_block() == NULL)
+ && !currently_reachable())
return;
switch ((declaration_kind_t) entity->declaration.kind) {
static void if_statement_to_firm(if_statement_t *statement)
{
- ir_node *cur_block = get_cur_block();
-
- ir_node *fallthrough_block = NULL;
-
- /* the true (blocks) */
- 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();
- if (fallthrough_block == NULL)
- fallthrough_block = new_immBlock();
- add_immBlock_pred(fallthrough_block, jmp);
- }
+ /* 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);
}
- /* the false (blocks) */
- ir_node *false_block = NULL;
+ /* Create the false statement.
+ * Handle false before true, so if no false statement is present, then the
+ * empty false block is reused as fallthrough block. */
+ ir_node *fallthrough_block = NULL;
if (statement->false_statement != NULL) {
- false_block = new_immBlock();
+ if (false_block != NULL) {
+ mature_immBlock(false_block);
+ }
set_cur_block(false_block);
-
statement_to_firm(statement->false_statement);
- if (get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- if (fallthrough_block == NULL)
- fallthrough_block = new_immBlock();
- add_immBlock_pred(fallthrough_block, jmp);
+ if (currently_reachable()) {
+ fallthrough_block = new_immBlock();
+ add_immBlock_pred(fallthrough_block, new_Jmp());
}
+ } else {
+ fallthrough_block = false_block;
}
- /* create the condition */
- if (cur_block != NULL) {
- if (true_block == NULL || false_block == NULL) {
- if (fallthrough_block == NULL)
- fallthrough_block = new_immBlock();
- if (true_block == NULL)
- true_block = fallthrough_block;
- if (false_block == NULL)
- false_block = fallthrough_block;
+ /* Create the true statement. */
+ set_cur_block(true_block);
+ statement_to_firm(statement->true_statement);
+ if (currently_reachable()) {
+ if (fallthrough_block == NULL) {
+ fallthrough_block = new_immBlock();
}
-
- set_cur_block(cur_block);
- create_condition_evaluation(statement->condition, true_block,
- false_block);
+ add_immBlock_pred(fallthrough_block, new_Jmp());
}
- mature_immBlock(true_block);
- if (false_block != fallthrough_block && false_block != NULL) {
- mature_immBlock(false_block);
- }
+ /* Handle the block after the if-statement. */
if (fallthrough_block != NULL) {
mature_immBlock(fallthrough_block);
}
-
set_cur_block(fallthrough_block);
}
+/* 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)
+{
+ ir_node *const pred = currently_reachable() ? new_Jmp() : new_Bad(mode_X);
+ add_immBlock_pred(target_block, pred);
+}
+
static void while_statement_to_firm(while_statement_t *statement)
{
- ir_node *jmp = NULL;
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
- }
+ /* Create the header block */
+ ir_node *const header_block = new_immBlock();
+ jump_if_reachable(header_block);
+
+ /* 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;
- /* create the header block */
- ir_node *header_block = new_immBlock();
- if (jmp != NULL) {
- add_immBlock_pred(header_block, jmp);
+ keep_alive(header_block);
+ keep_all_memory(header_block);
+ } 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);
}
- /* the loop body */
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = NULL;
+ ir_node *const old_continue_label = continue_label;
+ ir_node *const old_break_label = break_label;
+ continue_label = header_block;
+ break_label = false_block;
- ir_node *body_block = new_immBlock();
+ /* Create the loop body. */
set_cur_block(body_block);
statement_to_firm(statement->body);
- ir_node *false_block = break_label;
-
- assert(continue_label == header_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
-
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
- add_immBlock_pred(header_block, jmp);
- }
-
- /* shortcut for while(true) */
- if (is_constant_expression(statement->condition)
- && fold_constant_to_bool(statement->condition) != 0) {
- set_cur_block(header_block);
- ir_node *header_jmp = new_Jmp();
- add_immBlock_pred(body_block, header_jmp);
-
- keep_alive(body_block);
- keep_all_memory(body_block);
- set_cur_block(body_block);
- } else {
- if (false_block == NULL) {
- false_block = new_immBlock();
- }
-
- /* create the condition */
- set_cur_block(header_block);
-
- create_condition_evaluation(statement->condition, body_block,
- false_block);
- }
+ jump_if_reachable(header_block);
- mature_immBlock(body_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 void do_while_statement_to_firm(do_while_statement_t *statement)
+static ir_node *get_break_label(void)
{
- ir_node *jmp = NULL;
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
+ 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();
- if (jmp != NULL) {
- add_immBlock_pred(body_block, jmp);
- }
+ jump_if_reachable(body_block);
ir_node *old_continue_label = continue_label;
ir_node *old_break_label = break_label;
set_cur_block(body_block);
statement_to_firm(statement->body);
- ir_node *false_block = break_label;
+ ir_node *const false_block = get_break_label();
assert(continue_label == header_block);
continue_label = old_continue_label;
break_label = old_break_label;
- if (get_cur_block() != NULL) {
- ir_node *body_jmp = new_Jmp();
- add_immBlock_pred(header_block, body_jmp);
- mature_immBlock(header_block);
- }
-
- if (false_block == NULL) {
- false_block = new_immBlock();
- }
+ 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(header_block);
mature_immBlock(false_block);
set_cur_block(false_block);
static void for_statement_to_firm(for_statement_t *statement)
{
- ir_node *jmp = NULL;
-
/* create declarations */
entity_t *entity = statement->scope.entities;
for ( ; entity != NULL; entity = entity->base.next) {
create_local_declaration(entity);
}
- if (get_cur_block() != NULL) {
+ if (currently_reachable()) {
entity = statement->scope.entities;
for ( ; entity != NULL; entity = entity->base.next) {
if (!is_declaration(entity))
if (statement->initialisation != NULL) {
expression_to_firm(statement->initialisation);
}
-
- jmp = new_Jmp();
- }
-
-
- /* 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);
}
- ir_node *const step_jmp = new_Jmp();
- /* create the header block */
+ /* 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);
- }
- add_immBlock_pred(header_block, step_jmp);
-
- /* the false block */
- ir_node *const false_block = new_immBlock();
+ jump_if_reachable(header_block);
- /* the loop body */
+ /* Create the condition. */
ir_node *body_block;
- if (statement->body != NULL) {
- ir_node *const old_continue_label = continue_label;
- ir_node *const old_break_label = break_label;
- continue_label = step_block;
- break_label = false_block;
-
- body_block = new_immBlock();
- set_cur_block(body_block);
- statement_to_firm(statement->body);
-
- assert(continue_label == step_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
-
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
- add_immBlock_pred(step_block, jmp);
- }
- } else {
- body_block = step_block;
- }
-
- /* create the condition */
- set_cur_block(header_block);
+ ir_node *false_block;
if (statement->condition != NULL) {
- create_condition_evaluation(statement->condition, body_block,
- false_block);
+ 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);
- jmp = new_Jmp();
- add_immBlock_pred(body_block, jmp);
}
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- mature_immBlock(step_block);
- mature_immBlock(header_block);
- mature_immBlock(false_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();
+ }
+
+ 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);
+ /* Create the step code. */
+ if (step != NULL) {
+ mature_immBlock(step_block);
+ set_cur_block(step_block);
+ expression_to_firm(step);
+ jump_if_reachable(header_block);
+ }
+
+ mature_immBlock(header_block);
+ assert(false_block == NULL || false_block == break_label);
+ false_block = break_label;
+ if (false_block != NULL) {
+ mature_immBlock(false_block);
+ }
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 (get_cur_block() == NULL)
+ 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);
- set_cur_block(NULL);
-}
-
-static ir_node *get_break_label(void)
-{
- if (break_label == NULL) {
- break_label = new_immBlock();
- }
- return break_label;
+ set_unreachable_now();
}
static void switch_statement_to_firm(switch_statement_t *statement)
dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
ir_node *cond = NULL;
- if (get_cur_block() != NULL) {
+ if (currently_reachable()) {
ir_node *expression = expression_to_firm(statement->expression);
cond = new_d_Cond(dbgi, expression);
first_block = get_cur_block();
}
- set_cur_block(NULL);
+ set_unreachable_now();
ir_node *const old_switch_cond = current_switch_cond;
ir_node *const old_break_label = break_label;
current_switch = statement;
/* determine a free number for the default label */
- unsigned long num_cases = 0;
- long def_nr = 0;
+ unsigned long num_cases = 0;
+ long default_proj_nr = 0;
for (case_label_statement_t *l = statement->first_case; l != NULL; l = l->next) {
if (l->expression == NULL) {
/* default case */
}
if (l->last_case >= l->first_case)
num_cases += l->last_case - l->first_case + 1;
- if (l->last_case > def_nr)
- def_nr = l->last_case;
+ if (l->last_case > default_proj_nr)
+ default_proj_nr = l->last_case;
}
- if (def_nr == INT_MAX) {
+ if (default_proj_nr == LONG_MAX) {
/* Bad: an overflow will occur, we cannot be sure that the
* maximum + 1 is a free number. Scan the values a second
* time to find a free number.
*/
unsigned char *bits = xmalloc((num_cases + 7) >> 3);
- memset(bits, 0, (num_cases + 7) >> 3);
+ memset(bits, 0, (num_cases + 7) >> 3);
for (case_label_statement_t *l = statement->first_case; l != NULL; l = l->next) {
if (l->expression == NULL) {
/* default case */
break;
free(bits);
- def_nr = i;
+ default_proj_nr = i;
} else {
- ++def_nr;
+ ++default_proj_nr;
}
- statement->default_proj_nr = def_nr;
-
- if (statement->body != NULL) {
- statement_to_firm(statement->body);
+ statement->default_proj_nr = default_proj_nr;
+ /* safety check: cond might already be folded to a Bad */
+ if (cond != NULL && is_Cond(cond)) {
+ set_Cond_default_proj(cond, default_proj_nr);
}
- if (get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(get_break_label(), jmp);
- }
+ statement_to_firm(statement->body);
+
+ jump_if_reachable(get_break_label());
if (!saw_default_label && first_block != NULL) {
set_cur_block(first_block);
- ir_node *const proj = new_d_defaultProj(dbgi, cond,
- statement->default_proj_nr);
+ ir_node *const proj = new_d_Proj(dbgi, cond, mode_X, default_proj_nr);
add_immBlock_pred(get_break_label(), proj);
}
if (statement->is_empty_range)
return;
- dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
-
- ir_node *const fallthrough = (get_cur_block() == NULL ? NULL : new_Jmp());
-
- ir_node *proj;
ir_node *block = new_immBlock();
+ /* Fallthrough from previous case */
+ jump_if_reachable(block);
if (current_switch_cond != NULL) {
set_cur_block(get_nodes_block(current_switch_cond));
+ dbg_info *const dbgi = get_dbg_info(&statement->base.source_position);
if (statement->expression != NULL) {
long pn = statement->first_case;
long end_pn = statement->last_case;
assert(pn <= end_pn);
/* create jumps for all cases in the given range */
do {
- proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
+ ir_node *const proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
add_immBlock_pred(block, proj);
} while (pn++ < end_pn);
} else {
saw_default_label = true;
- proj = new_d_defaultProj(dbgi, current_switch_cond,
- current_switch->default_proj_nr);
-
+ ir_node *const proj = new_d_Proj(dbgi, current_switch_cond, mode_X,
+ current_switch->default_proj_nr);
add_immBlock_pred(block, proj);
}
}
- if (fallthrough != NULL) {
- add_immBlock_pred(block, fallthrough);
- }
mature_immBlock(block);
set_cur_block(block);
- if (statement->statement != NULL) {
- statement_to_firm(statement->statement);
- }
+ statement_to_firm(statement->statement);
}
static void label_to_firm(const label_statement_t *statement)
{
ir_node *block = get_label_block(statement->label);
-
- if (get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(block, jmp);
- }
+ jump_if_reachable(block);
set_cur_block(block);
keep_alive(block);
keep_all_memory(block);
- if (statement->statement != NULL) {
- statement_to_firm(statement->statement);
- }
+ statement_to_firm(statement->statement);
}
static void goto_to_firm(const goto_statement_t *statement)
{
- if (get_cur_block() == NULL)
+ if (!currently_reachable())
return;
if (statement->expression) {
ir_node *jmp = new_Jmp();
add_immBlock_pred(block, jmp);
}
- set_cur_block(NULL);
+ set_unreachable_now();
}
static void asm_statement_to_firm(const asm_statement_t *statement)
asm_constraint_flags_t asm_flags
= be_parse_asm_constraints(constraints);
- if (asm_flags & ASM_CONSTRAINT_FLAG_NO_SUPPORT) {
- warningf(&statement->base.source_position,
- "some constraints in '%s' are not supported", constraints);
- }
- if (asm_flags & ASM_CONSTRAINT_FLAG_INVALID) {
- errorf(&statement->base.source_position,
- "some constraints in '%s' are invalid", constraints);
- continue;
- }
- if (! (asm_flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE)) {
- errorf(&statement->base.source_position,
- "no write flag specified for output constraints '%s'",
- constraints);
- continue;
+ {
+ source_position_t const *const pos = &statement->base.source_position;
+ if (asm_flags & ASM_CONSTRAINT_FLAG_NO_SUPPORT) {
+ warningf(WARN_OTHER, pos, "some constraints in '%s' are not supported", constraints);
+ }
+ if (asm_flags & ASM_CONSTRAINT_FLAG_INVALID) {
+ errorf(pos, "some constraints in '%s' are invalid", constraints);
+ continue;
+ }
+ if (! (asm_flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE)) {
+ errorf(pos, "no write flag specified for output constraints '%s'", constraints);
+ continue;
+ }
}
unsigned pos = next_pos++;
}
}
-static void ms_try_statement_to_firm(ms_try_statement_t *statement)
+static void ms_try_statement_to_firm(ms_try_statement_t *statement)
{
statement_to_firm(statement->try_statement);
- warningf(&statement->base.source_position, "structured exception handling ignored");
+ source_position_t const *const pos = &statement->base.source_position;
+ warningf(WARN_OTHER, pos, "structured exception handling ignored");
}
-static void leave_statement_to_firm(leave_statement_t *statement)
+static void leave_statement_to_firm(leave_statement_t *statement)
{
errorf(&statement->base.source_position, "__leave not supported yet");
}
#endif
switch (statement->kind) {
- case STATEMENT_INVALID:
- panic("invalid statement found");
+ case STATEMENT_ERROR:
+ panic("error statement found");
case STATEMENT_EMPTY:
/* nothing */
return;
assert(entity->kind == ENTITY_FUNCTION);
ir_graph *irg = current_ir_graph;
ir_node *args = get_irg_args(irg);
- ir_type *function_irtype = get_ir_type(entity->declaration.type);
- int first_param_nr = 0;
+ int n = 0;
+ ir_type *function_irtype;
if (entity->function.need_closure) {
/* add an extra parameter for the static link */
entity->function.static_link = new_r_Proj(args, mode_P_data, 0);
- ++first_param_nr;
+ ++n;
+
+ /* Matze: IMO this is wrong, nested functions should have an own
+ * type and not rely on strange parameters... */
+ function_irtype = create_method_type(&entity->declaration.type->function, true);
+ } else {
+ function_irtype = get_ir_type(entity->declaration.type);
}
- int n = 0;
+
+
entity_t *parameter = entity->function.parameters.entities;
for ( ; parameter != NULL; parameter = parameter->base.next, ++n) {
if (parameter->kind != ENTITY_PARAMETER)
needs_entity = true;
}
+ ir_type *param_irtype = get_method_param_type(function_irtype, n);
if (needs_entity) {
- ir_entity *entity = get_method_value_param_ent(function_irtype, n);
- ident *id = new_id_from_str(parameter->base.symbol->string);
- set_entity_ident(entity, id);
-
+ 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 = entity;
+ parameter->parameter.v.entity = param;
continue;
}
- ir_type *param_irtype = get_method_param_type(function_irtype, n);
- ir_mode *param_mode = get_type_mode(param_irtype);
-
- long pn = n + first_param_nr;
- ir_node *value = new_r_Proj(args, param_mode, pn);
+ ir_mode *param_mode = get_type_mode(param_irtype);
+ long pn = n;
+ ir_node *value = new_r_Proj(args, param_mode, pn);
ir_mode *mode = get_ir_mode_storage(type);
value = create_conv(NULL, value, mode);
{
if (decl_modifiers & DM_RETURNS_TWICE) {
/* TRUE if the declaration includes __attribute__((returns_twice)) */
- set_irg_additional_property(irg, mtp_property_returns_twice);
+ add_irg_additional_properties(irg, mtp_property_returns_twice);
}
if (decl_modifiers & DM_NORETURN) {
/* TRUE if the declaration includes the Microsoft
__declspec(noreturn) specifier. */
- set_irg_additional_property(irg, mtp_property_noreturn);
+ add_irg_additional_properties(irg, mtp_property_noreturn);
}
if (decl_modifiers & DM_NOTHROW) {
/* TRUE if the declaration includes the Microsoft
__declspec(nothrow) specifier. */
- set_irg_additional_property(irg, mtp_property_nothrow);
+ add_irg_additional_properties(irg, mtp_property_nothrow);
}
if (decl_modifiers & DM_NAKED) {
/* TRUE if the declaration includes the Microsoft
__declspec(naked) specifier. */
- set_irg_additional_property(irg, mtp_property_naked);
+ add_irg_additional_properties(irg, mtp_property_naked);
}
if (decl_modifiers & DM_FORCEINLINE) {
/* TRUE if the declaration includes the
ir_entity *ptr = new_entity(segment, ide, ptr_type);
ir_graph *irg = get_const_code_irg();
ir_node *val = new_rd_SymConst_addr_ent(NULL, irg, mode_P_code,
- method, NULL);
+ method);
set_entity_ld_ident(ptr, new_id_from_chars("", 0));
set_entity_compiler_generated(ptr, 1);
- set_entity_visibility(ptr, ir_visibility_local);
+ set_entity_visibility(ptr, ir_visibility_private);
add_entity_linkage(ptr, IR_LINKAGE_CONSTANT|IR_LINKAGE_HIDDEN_USER);
set_atomic_ent_value(ptr, val);
}
if (entity->function.statement == NULL)
return;
- if (is_main(entity) && firm_opt.os_support == OS_SUPPORT_MINGW) {
+ if (is_main(entity) && enable_main_collect2_hack) {
prepare_main_collect2(entity);
}
int n_local_vars = get_function_n_local_vars(entity);
ir_graph *irg = new_ir_graph(function_entity, n_local_vars);
+ current_ir_graph = irg;
ir_graph *old_current_function = current_function;
current_function = irg;
- set_irg_fp_model(irg, firm_opt.fp_model);
+ ir_entity *const old_current_vararg_entity = current_vararg_entity;
+ current_vararg_entity = NULL;
+
+ set_irg_fp_model(irg, firm_fp_model);
tarval_enable_fp_ops(1);
- set_irn_dbg_info(get_irg_start_block(irg), get_entity_dbg_info(function_entity));
+ set_irn_dbg_info(get_irg_start_block(irg),
+ get_entity_dbg_info(function_entity));
ir_node *first_block = get_cur_block();
ir_node *end_block = get_irg_end_block(irg);
/* do we have a return statement yet? */
- if (get_cur_block() != NULL) {
+ if (currently_reachable()) {
type_t *type = skip_typeref(entity->declaration.type);
assert(is_type_function(type));
const function_type_t *func_type = &type->function;
if (has_computed_gotos) {
/* if we have computed goto's in the function, we cannot inline it */
if (get_irg_inline_property(irg) >= irg_inline_recomended) {
- warningf(&entity->base.source_position,
- "function '%Y' can never be inlined because it contains a computed goto",
- entity->base.symbol);
+ source_position_t const *const pos = &entity->base.source_position;
+ warningf(WARN_OTHER, pos, "'%N' can never be inlined because it contains a computed goto", entity);
}
set_irg_inline_property(irg, irg_inline_forbidden);
}
int align_all = 4;
int offset = 0;
for (int i = 0; i < n; ++i) {
- ir_entity *entity = get_compound_member(frame_type, i);
- ir_type *entity_type = get_entity_type(entity);
+ ir_entity *member = get_compound_member(frame_type, i);
+ ir_type *entity_type = get_entity_type(member);
int align = get_type_alignment_bytes(entity_type);
if (align > align_all)
}
}
- set_entity_offset(entity, offset);
+ set_entity_offset(member, offset);
offset += get_type_size_bytes(entity_type);
}
set_type_size_bytes(frame_type, offset);
set_type_alignment_bytes(frame_type, align_all);
- irg_vrfy(irg);
- current_function = old_current_function;
+ irg_verify(irg, VERIFY_ENFORCE_SSA);
+ current_vararg_entity = old_current_vararg_entity;
+ current_function = old_current_function;
if (current_trampolines != NULL) {
DEL_ARR_F(current_trampolines);
if (inner != NULL) {
ir_type *rem_outer_frame = current_outer_frame;
current_outer_frame = get_irg_frame_type(current_ir_graph);
- ir_type *rem_outer_value_type = current_outer_value_type;
- current_outer_value_type = get_irg_value_param_type(current_ir_graph);
for (int i = ARR_LEN(inner) - 1; i >= 0; --i) {
create_function(inner[i]);
}
DEL_ARR_F(inner);
- current_outer_value_type = rem_outer_value_type;
current_outer_frame = rem_outer_frame;
}
}
continue;
if (entity->kind == ENTITY_FUNCTION) {
- if (entity->function.btk != bk_none) {
+ if (entity->function.btk != BUILTIN_NONE) {
/* builtins have no representation */
continue;
}
continue;
if (entity->kind == ENTITY_FUNCTION) {
- if (entity->function.btk != bk_none) {
+ if (entity->function.btk != BUILTIN_NONE) {
/* builtins have no representation */
continue;
}
ir_set_debug_retrieve(dbg_retrieve);
ir_set_type_debug_retrieve(dbg_print_type_dbg_info);
- /* OS option must be set to the backend */
- switch (firm_opt.os_support) {
- case OS_SUPPORT_MINGW:
- create_ld_ident = create_name_win32;
- break;
- case OS_SUPPORT_LINUX:
- create_ld_ident = create_name_linux_elf;
- break;
- case OS_SUPPORT_MACHO:
- create_ld_ident = create_name_macho;
- break;
- default:
- panic("unexpected OS support mode");
- }
-
/* create idents for all known runtime functions */
for (size_t i = 0; i < lengthof(rts_data); ++i) {
rts_idents[i] = new_id_from_str(rts_data[i].name);
{
/* 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;
projects / cparser / blobdiff