* Modified by: Michael Beck
* Created:
* CVS-ID: $Id$
- * Copyright: (c) 2001-2003 Universität Karlsruhe
+ * Copyright: (c) 2001-2006 Universität Karlsruhe
* Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
* Implementation of the datastructure to hold
* type information.
*
- * (C) 2001-2005 by Universitaet Karlsruhe
- * Goetz Lindenmaier
+ * (C) 2001-2006 by Universitaet Karlsruhe
+ * Goetz Lindenmaier, Michael Beck
*
* This module supplies a datastructure to represent all types
* known in the compiled program. This includes types specified
# include "mangle.h"
# include "tv_t.h"
# include "irhooks.h"
+# include "irtools.h"
# include "array.h"
ir_type *firm_unknown_type; ir_type *get_unknown_type(void) { return firm_unknown_type; }
-#ifdef DEBUG_libfirm
-/* Returns a new, unique number to number nodes or the like. */
-int get_irp_new_node_nr(void);
-#endif
-
/* Suffixes added to types used for pass-by-value representations. */
static ident *value_params_suffix = NULL;
static ident *value_ress_suffix = NULL;
#ifdef DEBUG_libfirm
return tp->nr;
#else
- return (long)tp;
+ return (long)PTR_TO_INT(tp);
#endif
}
}
-visibility get_type_visibility (const ir_type *tp) {
+ir_visibility get_type_visibility (const ir_type *tp) {
#if 0
visibility res = visibility_local;
if (is_compound_type(tp)) {
return tp->visibility;
}
-void set_type_visibility (ir_type *tp, visibility v) {
+void set_type_visibility (ir_type *tp, ir_visibility v) {
assert(is_type(tp));
#if 0
/* check for correctness */
void
set_type_alignment_bits(ir_type *tp, int align) {
assert(tp && tp->kind == k_type);
+ assert((align == -1 || (align & (align - 1)) == 0) && "type alignment not power of two");
/* Methods don't have an alignment. */
if (tp->type_op != type_method) {
tp->align = align;
void
set_type_alignment_bytes(ir_type *tp, int align) {
- set_type_alignment_bits(tp, 8*align);
+ if (align == -1) {
+ set_type_alignment_bits(tp, -1);
+ } else {
+ set_type_alignment_bits(tp, 8*align);
+ }
}
/* Returns a human readable string for the enum entry. */
int i;
switch (get_type_tpop_code(tp)) {
case tpo_class:
- {
- assert(get_type_size_bits(tp) > -1);
- if (tp != get_glob_type()) {
- int n_mem = get_class_n_members(tp);
- for (i = 0; i < n_mem; i++) {
- if (get_entity_offset_bits(get_class_member(tp, i)) <= -1)
- { DDMT(tp); DDME(get_class_member(tp, i)); }
- assert(get_entity_offset_bits(get_class_member(tp, i)) > -1);
- /* TR ??
- assert(is_Method_type(get_entity_type(get_class_member(tp, i))) ||
- (get_entity_allocation(get_class_member(tp, i)) == allocation_automatic));
- */
+ assert(get_type_size_bits(tp) > -1);
+ if (tp != get_glob_type()) {
+ int n_mem = get_class_n_members(tp);
+ for (i = 0; i < n_mem; i++) {
+ if (get_entity_offset_bits(get_class_member(tp, i)) <= -1)
+ { DDMT(tp); DDME(get_class_member(tp, i)); }
+ assert(get_entity_offset_bits(get_class_member(tp, i)) > -1);
+ /* TR ??
+ assert(is_Method_type(get_entity_type(get_class_member(tp, i))) ||
+ (get_entity_allocation(get_class_member(tp, i)) == allocation_automatic));
+ */
+ }
}
- }
- } break;
+ break;
case tpo_struct:
- {
- assert(get_type_size_bits(tp) > -1);
- for (i = 0; i < get_struct_n_members(tp); i++) {
- assert(get_entity_offset_bits(get_struct_member(tp, i)) > -1);
- assert((get_entity_allocation(get_struct_member(tp, i)) == allocation_automatic));
- }
- } break;
+ assert(get_type_size_bits(tp) > -1);
+ for (i = 0; i < get_struct_n_members(tp); i++) {
+ assert(get_entity_offset_bits(get_struct_member(tp, i)) > -1);
+ assert((get_entity_allocation(get_struct_member(tp, i)) == allocation_automatic));
+ }
+ break;
case tpo_union:
- { /* ?? */
- } break;
+ /* ?? */
+ break;
case tpo_array:
- { /* ??
+ /* ??
Check order?
Assure that only innermost dimension is dynamic? */
- } break;
+ break;
case tpo_enumeration:
- {
- assert(get_type_mode != NULL);
- for (i = 0; i < get_enumeration_n_enums(tp); i++)
- assert(get_enumeration_enum(tp, i) != NULL);
- } break;
+ assert(get_type_mode != NULL);
+ for (i = get_enumeration_n_enums(tp) - 1; i >= 0; --i) {
+ ir_enum_const *ec = get_enumeration_const(tp, i);
+ tarval *tv = get_enumeration_value(ec);
+ assert(tv != NULL && tv != tarval_bad);
+ }
+ break;
default: break;
} /* switch (tp) */
}
- if (state = layout_fixed)
+ if (state == layout_fixed)
tp->flags |= tf_layout_fixed;
else
- tp->flags &= tf_layout_fixed;
+ tp->flags &= ~tf_layout_fixed;
}
unsigned long (get_type_visited)(const ir_type *tp) {
res->attr.ca.supertypes = NEW_ARR_F (ir_type *, 0);
res->attr.ca.peculiarity = peculiarity_existent;
res->attr.ca.type_info = NULL;
- res->attr.ca.final = 0;
+ res->attr.ca.vtable_size = 0;
+ res->attr.ca.clss_flags = cf_none;
res->attr.ca.dfn = 0;
hook_new_type(res);
return res;
clss->attr.ca.type_info = ent;
}
-const char *get_peculiarity_string(peculiarity p) {
+const char *get_peculiarity_name(ir_peculiarity p) {
#define X(a) case a: return #a
switch (p) {
X(peculiarity_description);
return "invalid peculiarity";
}
-peculiarity get_class_peculiarity (const ir_type *clss) {
+ir_peculiarity get_class_peculiarity (const ir_type *clss) {
assert(clss && (clss->type_op == type_class));
return clss->attr.ca.peculiarity;
}
-void set_class_peculiarity (ir_type *clss, peculiarity pec) {
+void set_class_peculiarity (ir_type *clss, ir_peculiarity pec) {
assert(clss && (clss->type_op == type_class));
assert(pec != peculiarity_inherited); /* There is no inheritance of types in libFirm. */
clss->attr.ca.peculiarity = pec;
}
+/* Returns the size of the virtual function table. */
+unsigned (get_class_vtable_size)(const ir_type *clss) {
+ return _get_class_vtable_size(clss);
+}
+
+/* Sets a new size of the virtual function table. */
+void (set_class_vtable_size)(ir_type *clss, unsigned size) {
+ _set_class_vtable_size(clss, size);
+}
+
+/* Returns non-zero if a class is final. */
int (is_class_final)(const ir_type *clss) {
return _is_class_final(clss);
}
-void (set_class_final)(ir_type *clss, int final) {
- _set_class_final(clss, final);
+/* Sets if a class is final. */
+void (set_class_final)(ir_type *clss, int flag) {
+ _set_class_final(clss, flag);
+}
+
+/* Returns non-zero if a class is an interface. */
+int (is_class_interface)(const ir_type *clss) {
+ return _is_class_interface(clss);
+}
+
+/* Sets the class interface flag. */
+void (set_class_interface)(ir_type *clss, int flag) {
+ _set_class_interface(clss, flag);
+}
+
+/* Returns non-zero if a class is abstract. */
+int (is_class_abstract)(const ir_type *clss) {
+ return _is_class_abstract(clss);
+}
+
+/* Sets the class abstract flag. */
+void (set_class_abstract)(ir_type *clss, int final) {
+ _set_class_abstract(clss, final);
}
void set_class_dfn (ir_type *clss, int dfn) {
build_value_type(ident *name, int len, tp_ent_pair *tps) {
int i;
ir_type *res = new_type_struct(name);
+ res->flags |= tf_value_param_type;
/* Remove type from type list. Must be treated differently than other types. */
remove_irp_type(res);
for (i = 0; i < len; i++) {
+ ident *id = tps[i].param_name;
+
/* use res as default if corresponding type is not yet set. */
ir_type *elt_type = tps[i].tp ? tps[i].tp : res;
- tps[i].ent = new_entity(res, mangle_u(name, get_type_ident(elt_type)), elt_type);
+ /* use the parameter name if specified */
+ if (! id)
+ id = mangle_u(name, get_type_ident(elt_type));
+ tps[i].ent = new_entity(res, id, elt_type);
+ set_entity_allocation(tps[i].ent, allocation_parameter);
}
return res;
}
res->flags |= tf_layout_fixed;
res->size = get_mode_size_bits(mode_P_code);
res->attr.ma.n_params = n_param;
- res->attr.ma.param_type = xcalloc(n_param, sizeof(res->attr.ma.param_type[0]));
+ res->attr.ma.params = xcalloc(n_param, sizeof(res->attr.ma.params[0]));
res->attr.ma.value_params = NULL;
res->attr.ma.n_res = n_res;
res->attr.ma.res_type = xcalloc(n_res, sizeof(res->attr.ma.res_type[0]));
res->attr.ma.value_ress = NULL;
res->attr.ma.variadicity = variadicity_non_variadic;
res->attr.ma.first_variadic_param = -1;
+ res->attr.ma.additional_properties = mtp_no_property;
res->attr.ma.irg_calling_conv = default_cc_mask;
hook_new_type(res);
return res;
/* Attention: also frees entities in value parameter subtypes! */
void free_method_attrs(ir_type *method) {
assert(method && (method->type_op == type_method));
- free(method->attr.ma.param_type);
+ free(method->attr.ma.params);
free(method->attr.ma.res_type);
if (method->attr.ma.value_params) {
free_type_entities(method->attr.ma.value_params);
return _get_method_n_params(method);
}
+/* Returns the type of the parameter at position pos of a method. */
ir_type *get_method_param_type(ir_type *method, int pos) {
ir_type *res;
assert(method && (method->type_op == type_method));
assert(pos >= 0 && pos < get_method_n_params(method));
- res = method->attr.ma.param_type[pos].tp;
+ res = method->attr.ma.params[pos].tp;
assert(res != NULL && "empty method param type");
- return method->attr.ma.param_type[pos].tp = skip_tid(res);
+ return method->attr.ma.params[pos].tp = skip_tid(res);
}
void set_method_param_type(ir_type *method, int pos, ir_type *tp) {
assert(method && (method->type_op == type_method));
assert(pos >= 0 && pos < get_method_n_params(method));
- method->attr.ma.param_type[pos].tp = tp;
+ method->attr.ma.params[pos].tp = tp;
/* If information constructed set pass-by-value representation. */
if (method->attr.ma.value_params) {
assert(get_method_n_params(method) == get_struct_n_members(method->attr.ma.value_params));
}
}
+/* Returns an ident representing the parameters name. Returns NULL if not set.
+ For debug support only. */
+ident *get_method_param_ident(ir_type *method, int pos) {
+ assert(method && (method->type_op == type_method));
+ assert(pos >= 0 && pos < get_method_n_params(method));
+ return method->attr.ma.params[pos].param_name;
+}
+
+/* Returns a string representing the parameters name. Returns NULL if not set.
+ For debug support only. */
+const char *get_method_param_name(ir_type *method, int pos) {
+ ident *id = get_method_param_ident(method, pos);
+ return id ? get_id_str(id) : NULL;
+}
+
+/* Sets an ident representing the parameters name. For debug support only. */
+void set_method_param_ident(ir_type *method, int pos, ident *id) {
+ assert(method && (method->type_op == type_method));
+ assert(pos >= 0 && pos < get_method_n_params(method));
+ method->attr.ma.params[pos].param_name = id;
+}
+
/* Returns an entity that represents the copied value argument. Only necessary
for compounds passed by value. */
entity *get_method_value_param_ent(ir_type *method, int pos) {
/* parameter value type not created yet, build */
method->attr.ma.value_params
= build_value_type(mangle_u(get_type_ident(method), value_params_suffix),
- get_method_n_params(method), method->attr.ma.param_type);
+ get_method_n_params(method), method->attr.ma.params);
}
/*
* build_value_type() sets the method->attr.ma.value_params type as default if
* no type is set!
*/
- assert((get_entity_type(method->attr.ma.param_type[pos].ent) != method->attr.ma.value_params)
+ assert((get_entity_type(method->attr.ma.params[pos].ent) != method->attr.ma.value_params)
&& "param type not yet set");
- return method->attr.ma.param_type[pos].ent;
+ return method->attr.ma.params[pos].ent;
}
/*
assert(array && (array->type_op == type_array));
free(array->attr.aa.lower_bound);
free(array->attr.aa.upper_bound);
+ free(array->attr.aa.order);
}
/* manipulate private fields of array ir_type */
/* create a new type enumeration -- set the enumerators independently */
ir_type *new_d_type_enumeration(ident *name, int n_enums, dbg_info *db) {
- ir_type *res = new_type(type_enumeration, NULL, name, db);
+ ir_type *res;
- res->attr.ea.n_enums = n_enums;
- res->attr.ea.enumer = xcalloc(n_enums, sizeof(res->attr.ea.enumer[0]));
- res->attr.ea.enum_nameid = xcalloc(n_enums, sizeof(res->attr.ea.enum_nameid[0]));
+ assert(n_enums >= 0);
+ res = new_type(type_enumeration, NULL, name, db);
+ res->attr.ea.enumer = NEW_ARR_F(ir_enum_const, n_enums);
hook_new_type(res);
return res;
}
}
void free_enumeration_attrs(ir_type *enumeration) {
assert(enumeration && (enumeration->type_op == type_enumeration));
- free(enumeration->attr.ea.enumer);
- free(enumeration->attr.ea.enum_nameid);
+ DEL_ARR_F(enumeration->attr.ea.enumer);
}
/* manipulate fields of enumeration type. */
-int get_enumeration_n_enums (const ir_type *enumeration) {
+int get_enumeration_n_enums(const ir_type *enumeration) {
assert(enumeration && (enumeration->type_op == type_enumeration));
- return enumeration->attr.ea.n_enums;
+ return ARR_LEN(enumeration->attr.ea.enumer);
}
-void set_enumeration_enum (ir_type *enumeration, int pos, tarval *con) {
- assert(enumeration && (enumeration->type_op == type_enumeration));
- assert(pos >= 0 && pos < get_enumeration_n_enums(enumeration));
- enumeration->attr.ea.enumer[pos] = con;
+
+/* create a new constant */
+void set_enumeration_const(ir_type *enumeration, int pos, ident *nameid, tarval *con) {
+ assert(0 <= pos && pos < ARR_LEN(enumeration->attr.ea.enumer));
+ enumeration->attr.ea.enumer[pos].nameid = nameid;
+ enumeration->attr.ea.enumer[pos].value = con;
+ enumeration->attr.ea.enumer[pos].owner = enumeration;
}
-tarval *get_enumeration_enum (const ir_type *enumeration, int pos) {
+
+ir_enum_const *get_enumeration_const(const ir_type *enumeration, int pos) {
assert(enumeration && (enumeration->type_op == type_enumeration));
assert(pos >= 0 && pos < get_enumeration_n_enums(enumeration));
- return enumeration->attr.ea.enumer[pos];
+ return &enumeration->attr.ea.enumer[pos];
}
-void set_enumeration_nameid (ir_type *enumeration, int pos, ident *id) {
- assert(enumeration && (enumeration->type_op == type_enumeration));
- assert(pos >= 0 && pos < get_enumeration_n_enums(enumeration));
- enumeration->attr.ea.enum_nameid[pos] = id;
+
+ir_type *get_enumeration_owner(const ir_enum_const *enum_cnst) {
+ return enum_cnst->owner;
}
-ident *get_enumeration_nameid (const ir_type *enumeration, int pos) {
- assert(enumeration && (enumeration->type_op == type_enumeration));
- assert(pos >= 0 && pos < get_enumeration_n_enums(enumeration));
- return enumeration->attr.ea.enum_nameid[pos];
+void set_enumeration_value(ir_enum_const *enum_cnst, tarval *con) {
+ enum_cnst->value = con;
}
-const char *get_enumeration_name(const ir_type *enumeration, int pos) {
- assert(enumeration && (enumeration->type_op == type_enumeration));
- assert(pos >= 0 && pos < get_enumeration_n_enums(enumeration));
- return get_id_str(enumeration->attr.ea.enum_nameid[pos]);
+tarval *get_enumeration_value(const ir_enum_const *enum_cnst) {
+ return enum_cnst->value;
+}
+void set_enumeration_nameid(ir_enum_const *enum_cnst, ident *id) {
+ enum_cnst->nameid = id;
+}
+ident *get_enumeration_nameid(const ir_enum_const *enum_cnst) {
+ return enum_cnst->nameid;
+}
+const char *get_enumeration_name(const ir_enum_const *enum_cnst) {
+ return get_id_str(enum_cnst->nameid);
}
/* typecheck */
* Not efficient: O(#types).
* If not found returns firm_unknown_type. */
ir_type *find_pointer_type_to_type (ir_type *tp) {
- int i;
- for (i = 0; i < get_irp_n_types(); ++i) {
+ int i, n = get_irp_n_types();
+ for (i = 0; i < n; ++i) {
ir_type *found = get_irp_type(i);
if (is_Pointer_type(found) && get_pointer_points_to_type(found) == tp)
return (found);
return tp->type_op->flags & TP_OP_FLAG_COMPOUND;
}
-/* Checks, whether a type is a frame ir_type */
+/* Checks, whether a type is a frame type */
int is_frame_type(const ir_type *tp) {
return tp->flags & tf_frame_type;
}
-/* Checks, whether a type is a lowered ir_type */
+/* Checks, whether a type is a value parameter type */
+int is_value_param_type(const ir_type *tp) {
+ return tp->flags & tf_value_param_type;
+}
+
+/* Checks, whether a type is a lowered type */
int is_lowered_type(const ir_type *tp) {
return tp->flags & tf_lowered_type;
}
void set_default_size_bits(ir_type *tp, int size) {
tp->size = size;
}
+
+/*
+ * Allocate an area of size bytes aligned at alignment
+ * at the start or the end of a frame type.
+ * The frame type must have already an fixed layout.
+ */
+entity *frame_alloc_area(ir_type *frame_type, int size, int alignment, int at_start)
+{
+ entity *area;
+ ir_type *tp;
+ ident *name;
+ char buf[32];
+ int frame_align, i, offset, frame_size;
+ static unsigned area_cnt = 0;
+ static ir_type *a_byte = NULL;
+
+ assert(is_frame_type(frame_type));
+ assert(get_type_state(frame_type) == layout_fixed);
+
+ if (! a_byte)
+ a_byte = new_type_primitive(new_id_from_chars("byte", 4), mode_Bu);
+
+ snprintf(buf, sizeof(buf), "area%u", area_cnt++);
+ name = new_id_from_str(buf);
+
+ /* align the size */
+ frame_align = get_type_alignment_bytes(frame_type);
+ size = (size + frame_align - 1) & -frame_align;
+
+ tp = new_type_array(mangle_u(get_type_ident(frame_type), name), 1, a_byte);
+ set_array_bounds_int(tp, 0, 0, size);
+ set_type_alignment_bytes(tp, alignment);
+
+ frame_size = get_type_size_bytes(frame_type);
+ if (at_start) {
+ /* fix all offsets so far */
+ for (i = get_class_n_members(frame_type) - 1; i >= 0; --i) {
+ entity *ent = get_class_member(frame_type, i);
+
+ set_entity_offset_bytes(ent, get_entity_offset_bytes(ent) + size);
+ }
+ /* calculate offset and new type size */
+ offset = 0;
+ frame_size += size;
+ }
+ else {
+ /* calculate offset and new type size */
+ offset = (frame_size + alignment - 1) & -alignment;
+ frame_size = offset + size;
+ }
+
+ area = new_entity(frame_type, name, tp);
+ set_entity_offset_bytes(area, offset);
+ set_type_size_bytes(frame_type, frame_size);
+
+ /* mark this entity as compiler generated */
+ set_entity_compiler_generated(area, 1);
+ return area;
+}
projects / libfirm / blobdiff