/*
- * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
- *
* This file is part of libFirm.
- *
- * This file may be distributed and/or modified under the terms of the
- * GNU General Public License version 2 as published by the Free Software
- * Foundation and appearing in the file LICENSE.GPL included in the
- * packaging of this file.
- *
- * Licensees holding valid libFirm Professional Edition licenses may use
- * this file in accordance with the libFirm Commercial License.
- * Agreement provided with the Software.
- *
- * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
- * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE.
+ * Copyright (C) 2012 University of Karlsruhe.
*/
/**
- * @file type.c
+ * @file
* @brief Representation of types.
* @author Goetz Lindenmaier, Michael Beck
* @brief
#include <string.h>
#include <stdlib.h>
#include <stddef.h>
+#include <stdbool.h>
#include "type_t.h"
#include "array.h"
+static ir_type *new_type(tp_op const *type_op, ir_mode *mode, type_dbg_info *db);
+
ir_type *get_none_type(void)
{
return irp->none_type;
_inc_master_type_visited();
}
-ir_type *new_type(const tp_op *type_op, ir_mode *mode, type_dbg_info *db)
+/**
+ * Creates a new type representation:
+ *
+ * @param type_op the kind of this type. May not be type_id.
+ * @param mode the mode to be used for this type, may be NULL
+ * @param db debug info
+ *
+ * @return A new type of the given type. The remaining private attributes are
+ * not initialized. The type is in state layout_undefined.
+ */
+static ir_type *new_type(tp_op const *type_op, ir_mode *mode, type_dbg_info *db)
{
ir_type *res;
size_t node_size;
void set_type_size_bytes(ir_type *tp, unsigned size)
{
const tp_op *tpop = get_type_tpop(tp);
-
- if (tpop->ops.set_type_size)
- tpop->ops.set_type_size(tp, size);
- else
- assert(0 && "Cannot set size for this type");
+ tpop->ops.set_type_size(tp, size);
}
unsigned get_type_alignment_bytes(ir_type *tp)
res->attr.ca.subtypes = NEW_ARR_F (ir_type *, 0);
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.vtable_size = 0;
res->attr.ca.clss_flags = cf_none;
res->attr.ca.dfn = 0;
/* we must iterate backward here */
for (i = get_class_n_members(clss); i > 0;)
free_entity(get_class_member(clss, --i));
- /* do NOT free the type info here. It belongs to another class */
}
void free_class_attrs(ir_type *clss)
}
}
-ir_entity *get_class_type_info(const ir_type *clss)
-{
- return clss->attr.ca.type_info;
-}
-
-void set_class_type_info(ir_type *clss, ir_entity *ent)
-{
- clss->attr.ca.type_info = ent;
- if (ent)
- ent->repr_class = clss;
-}
-
ir_peculiarity get_class_peculiarity(const ir_type *clss)
{
assert(clss && (clss->type_op == type_class));
assert((get_mode_size_bits(mode_P_code) % 8 == 0) && "unorthodox modes not implemented");
res = new_type(type_method, mode_P_code, db);
- res->flags |= tf_layout_fixed;
- res->size = get_mode_size_bytes(mode_P_code);
- res->attr.ma.n_params = n_param;
- res->attr.ma.params = XMALLOCNZ(tp_ent_pair, n_param);
- res->attr.ma.n_res = n_res;
- res->attr.ma.res_type = XMALLOCNZ(tp_ent_pair, n_res);
- res->attr.ma.variadicity = variadicity_non_variadic;
- res->attr.ma.additional_properties = mtp_no_property;
+ res->flags |= tf_layout_fixed;
+ res->size = get_mode_size_bytes(mode_P_code);
+ res->attr.ma.n_params = n_param;
+ res->attr.ma.params = XMALLOCNZ(tp_ent_pair, n_param);
+ res->attr.ma.n_res = n_res;
+ res->attr.ma.res_type = XMALLOCNZ(tp_ent_pair, n_res);
+ res->attr.ma.variadicity = variadicity_non_variadic;
+ res->attr.ma.properties = mtp_no_property;
hook_new_type(res);
return res;
}
res = new_type(type_method, mode, db);
- res->flags = tp->flags;
- res->higher_type = tp->higher_type;
- res->size = tp->size;
- res->attr.ma.n_params = n_params;
- res->attr.ma.params = XMALLOCN(tp_ent_pair, n_params);
+ res->flags = tp->flags;
+ res->higher_type = tp->higher_type;
+ res->size = tp->size;
+ res->attr.ma.n_params = n_params;
+ res->attr.ma.params = XMALLOCN(tp_ent_pair, n_params);
memcpy(res->attr.ma.params, tp->attr.ma.params, n_params * sizeof(res->attr.ma.params[0]));
- res->attr.ma.n_res = n_res;
- res->attr.ma.res_type = XMALLOCN(tp_ent_pair, n_res);
+ res->attr.ma.n_res = n_res;
+ res->attr.ma.res_type = XMALLOCN(tp_ent_pair, n_res);
memcpy(res->attr.ma.res_type, tp->attr.ma.res_type, n_res * sizeof(res->attr.ma.res_type[0]));
- res->attr.ma.variadicity = tp->attr.ma.variadicity;
- res->attr.ma.additional_properties = tp->attr.ma.additional_properties;
- res->attr.ma.irg_calling_conv = tp->attr.ma.irg_calling_conv;
+ res->attr.ma.variadicity = tp->attr.ma.variadicity;
+ res->attr.ma.properties = tp->attr.ma.properties;
+ res->attr.ma.irg_calling_conv = tp->attr.ma.irg_calling_conv;
hook_new_type(res);
return res;
}
}
+ir_type *new_type_segment(ident *const name, type_flags const flags)
+{
+ ir_type *const seg = new_type_class(name);
+ seg->flags |= tf_segment | flags;
+ set_class_final(seg, true);
+ return seg;
+}
+
ir_type *new_d_type_array(size_t n_dimensions, ir_type *element_type,
type_dbg_info *db)
res->attr.aa.order[i] = i;
}
+ ident *const id = new_id_from_chars("elem_ent", 8);
res->attr.aa.element_type = element_type;
- res->attr.aa.element_ent
- = new_entity(NULL, new_id_from_chars("elem_ent", 8), element_type);
- res->attr.aa.element_ent->owner = res;
+ res->attr.aa.element_ent = new_entity(res, id, element_type);
hook_new_type(res);
return res;
void free_array_automatic_entities(ir_type *array)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
free_entity(get_array_element_entity(array));
}
void set_array_bounds(ir_type *array, size_t dimension, ir_node *lower_bound,
ir_node *upper_bound)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
assert(lower_bound && "lower_bound node may not be NULL.");
assert(upper_bound && "upper_bound node may not be NULL.");
assert(dimension < array->attr.aa.n_dimensions);
void set_array_lower_bound(ir_type *array, size_t dimension,
ir_node *lower_bound)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
assert(lower_bound && "lower_bound node may not be NULL.");
array->attr.aa.lower_bound[dimension] = lower_bound;
}
void set_array_upper_bound(ir_type *array, size_t dimension, ir_node *upper_bound)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
assert(upper_bound && "upper_bound node may not be NULL.");
array->attr.aa.upper_bound[dimension] = upper_bound;
}
int has_array_lower_bound(const ir_type *array, size_t dimension)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
return !is_Unknown(array->attr.aa.lower_bound[dimension]);
}
ir_node *get_array_lower_bound(const ir_type *array, size_t dimension)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
return array->attr.aa.lower_bound[dimension];
}
long get_array_lower_bound_int(const ir_type *array, size_t dimension)
{
ir_node *node;
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
node = array->attr.aa.lower_bound[dimension];
- assert(is_Const(node));
return get_tarval_long(get_Const_tarval(node));
}
int has_array_upper_bound(const ir_type *array, size_t dimension)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
return !is_Unknown(array->attr.aa.upper_bound[dimension]);
}
ir_node *get_array_upper_bound(const ir_type *array, size_t dimension)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
return array->attr.aa.upper_bound[dimension];
}
long get_array_upper_bound_int(const ir_type *array, size_t dimension)
{
ir_node *node;
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
node = array->attr.aa.upper_bound[dimension];
- assert(is_Const(node));
return get_tarval_long(get_Const_tarval(node));
}
void set_array_order(ir_type *array, size_t dimension, size_t order)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
array->attr.aa.order[dimension] = order;
}
size_t get_array_order(const ir_type *array, size_t dimension)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
return array->attr.aa.order[dimension];
}
void set_array_element_type(ir_type *array, ir_type *tp)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
assert(!is_Method_type(tp));
array->attr.aa.element_type = tp;
}
ir_type *get_array_element_type(const ir_type *array)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
return array->attr.aa.element_type;
}
void set_array_element_entity(ir_type *array, ir_entity *ent)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
assert((get_entity_type(ent)->type_op != type_method));
array->attr.aa.element_ent = ent;
array->attr.aa.element_type = get_entity_type(ent);
ir_entity *get_array_element_entity(const ir_type *array)
{
- assert(array && (array->type_op == type_array));
+ assert(array->type_op == type_array);
return array->attr.aa.element_ent;
}
+int is_array_variable_size(const ir_type *array)
+{
+ assert(array->type_op == type_array);
+ return (array->flags & tf_variable_size) != 0;
+}
+
+void set_array_variable_size(ir_type *array, int flag)
+{
+ assert(array->type_op == type_array);
+ array->flags = (array->flags & ~tf_variable_size)
+ | (flag != 0 ? tf_variable_size : 0);
+}
+
int (is_Array_type)(const ir_type *array)
{
return _is_array_type(array);
return op->ops.get_member_index(tp, member);
}
+void set_compound_variable_size(ir_type *tp, int variable_size_flag)
+{
+ assert(is_compound_type(tp));
+ tp->flags = (tp->flags & ~tf_variable_size)
+ | (variable_size_flag != 0 ? tf_variable_size : 0);
+}
+
+int is_compound_variable_size(const ir_type *tp)
+{
+ assert(is_compound_type(tp));
+ return (tp->flags & tf_variable_size) != 0;
+}
+
int is_compound_type(const ir_type *tp)
{
assert(tp->kind == k_type);
void default_layout_compound_type(ir_type *type)
{
- size_t i;
- size_t n = get_compound_n_members(type);
- int size = 0;
+ size_t i;
+ size_t n = get_compound_n_members(type);
+ int size = 0;
unsigned align_all = 1;
+ bool var_size = is_compound_variable_size(type);
for (i = 0; i < n; ++i) {
ir_entity *entity = get_compound_member(type, i);
ir_type *entity_type = get_entity_type(entity);
unsigned align;
unsigned misalign;
+ unsigned entity_size;
if (is_Method_type(entity_type))
continue;
- assert(get_type_state(entity_type) == layout_fixed);
+ if (i+1 < n || !var_size) {
+ assert(get_type_state(entity_type) == layout_fixed);
+ entity_size = get_type_size_bytes(entity_type);
+ } else {
+ entity_size = 0;
+ }
+
align = get_type_alignment_bytes(entity_type);
align_all = align > align_all ? align : align_all;
misalign = (align ? size % align : 0);
set_entity_offset(entity, size);
if (!is_Union_type(type)) {
- size += get_type_size_bytes(entity_type);
+ size += entity_size;
}
}
if (align_all > 0 && size % align_all) {
ir_type *tp;
ident *name;
char buf[32];
- int offset, frame_size;
+ int offset;
+ unsigned frame_size = get_type_size_bytes(frame_type);
+ unsigned frame_align = get_type_alignment_bytes(frame_type);
static unsigned area_cnt = 0;
assert(is_frame_type(frame_type));
set_type_alignment_bytes(tp, alignment);
set_type_size_bytes(tp, size);
- frame_size = get_type_size_bytes(frame_type);
if (at_start) {
size_t i, n;
- unsigned frame_align = get_type_alignment_bytes(frame_type);
unsigned delta = (size + frame_align - 1) & ~(frame_align - 1);
/* fix all offsets so far */
for (i = 0, n = get_class_n_members(frame_type); i < n; ++i) {
/* calculate offset and new type size */
offset = 0;
frame_size += delta;
-
- /* increase size to match alignment... */
- if (alignment > frame_align) {
- frame_align = alignment;
- set_type_alignment_bytes(frame_type, frame_align);
- frame_size = (frame_size + frame_align - 1) & ~(frame_align - 1);
- }
} else {
/* calculate offset and new type size */
offset = (frame_size + alignment - 1) & ~(alignment - 1);
area = new_entity(frame_type, name, tp);
set_entity_offset(area, offset);
set_type_size_bytes(frame_type, frame_size);
+ if (alignment > frame_align) {
+ set_type_alignment_bytes(frame_type, alignment);
+ }
/* mark this entity as compiler generated */
set_entity_compiler_generated(area, 1);
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