#include <config.h>
-#define _GNU_SOURCE
-
#include <assert.h>
#include <string.h>
#include <stdbool.h>
#include "parser.h"
#include "diagnostic.h"
#include "lang_features.h"
+#include "types.h"
#include "driver/firm_opt.h"
#include "driver/firm_cmdline.h"
static ir_type *ir_type_int;
static type_t *type_const_char;
-static type_t *type_void;
-static type_t *type_int;
static int next_value_number_function;
static ir_node *continue_label;
{
const declaration_t *declaration = get_irg_loc_description(irg, pos);
- warningf(declaration->source_position, "variable '%#T' might be used uninitialized",
- declaration->type, declaration->symbol);
+ warningf(declaration->source_position,
+ "variable '%#T' might be used uninitialized",
+ declaration->type, declaration->symbol);
return new_r_Unknown(irg, mode);
}
}
-
-
-static long fold_constant(const expression_t *expression);
-
static ir_type *create_atomic_type(const atomic_type_t *type)
{
dbg_info *dbgi = get_dbg_info(&type->type.source_position);
ident *id = get_mode_ident(mode);
ir_type *irtype = new_d_type_primitive(id, mode, dbgi);
+ /* TODO: this is x86 specific, we should fiddle this into
+ * lang_features.h somehow... */
if(type->akind == ATOMIC_TYPE_LONG_DOUBLE
- || type->akind == ATOMIC_TYPE_DOUBLE) {
+ || type->akind == ATOMIC_TYPE_DOUBLE
+ || type->akind == ATOMIC_TYPE_LONGLONG
+ || type->akind == ATOMIC_TYPE_ULONGLONG) {
set_type_alignment_bytes(irtype, 4);
}
type_t *element_type = type->element_type;
ir_type *ir_element_type = get_ir_type(element_type);
- ident *id = unique_ident("array");
- dbg_info *dbgi = get_dbg_info(&type->type.source_position);
- ir_type *ir_type = new_d_type_array(id, 1, ir_element_type, dbgi);
+ ident *id = unique_ident("array");
+ dbg_info *dbgi = get_dbg_info(&type->type.source_position);
+ ir_type *ir_type = new_d_type_array(id, 1, ir_element_type, dbgi);
const int align = get_type_alignment_bytes(ir_element_type);
set_type_alignment_bytes(ir_type, align);
- if(type->size != NULL) {
- int n_elements = fold_constant(type->size);
+ if(type->size_constant) {
+ int n_elements = type->size;
set_array_bounds_int(ir_type, 0, 0, n_elements);
return declaration->v.irtype;
}
- size_t offset = 0;
size_t align_all = 1;
+ size_t offset = 0;
size_t size = 0;
if(irtype == NULL) {
dbg_info *dbgi = get_dbg_info(&type->type.source_position);
irtype = new_d_type_union(id, dbgi);
+
+ declaration->v.irtype = irtype;
+ type->type.firm_type = irtype;
} else {
offset = *outer_offset;
align_all = *outer_align;
if(entry->namespc != NAMESPACE_NORMAL)
continue;
- type_t *entry_type = skip_typeref(entry->type);
- ir_type *entry_ir_type = get_ir_type(entry_type);
+ symbol_t *symbol = entry->symbol;
+ type_t *entry_type = skip_typeref(entry->type);
+ ir_type *entry_ir_type = get_ir_type(entry_type);
ident *ident;
- if(entry->symbol != NULL) {
+ if(symbol != NULL) {
ident = new_id_from_str(entry->symbol->string);
} else {
size_t offs = offset;
{
type->type.firm_type = ir_type_int;
- ir_mode *const mode = get_ir_mode((type_t*) type);
+ ir_mode *const mode = mode_int;
tarval *const one = get_mode_one(mode);
tarval * tv_next = get_tarval_null(mode);
const char *const id_prefix,
const string_t *const value)
{
- ir_type *const global_type = get_glob_type();
- dbg_info *const dbgi = get_dbg_info(src_pos);
- ir_type *const type = new_d_type_array(unique_ident("strtype"), 1,
- ir_type_const_char, dbgi);
+ ir_type *const global_type = get_glob_type();
+ dbg_info *const dbgi = get_dbg_info(src_pos);
+ ir_type *const type = new_d_type_array(unique_ident("strtype"), 1,
+ ir_type_const_char, dbgi);
ident *const id = unique_ident(id_prefix);
ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
panic("invalid UNEXPR type found");
}
-static ir_node *create_lazy_op(const binary_expression_t *expression)
+static ir_node *produce_condition_result(const expression_t *expression,
+ dbg_info *dbgi)
{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- type_t *type = expression->base.type;
- ir_mode *mode = get_ir_mode(type);
-
- if(is_constant_expression(expression->left)) {
- long val = fold_constant(expression->left);
- expression_kind_t ekind = expression->base.kind;
- if((ekind == EXPR_BINARY_LOGICAL_AND && val != 0)
- || (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) {
- return expression_to_firm(expression->right);
- } else {
- assert((ekind == EXPR_BINARY_LOGICAL_AND && val == 0)
- || (ekind == EXPR_BINARY_LOGICAL_OR && val != 0));
- return new_Const(mode, get_mode_one(mode));
- }
- }
-
+ ir_mode *mode = get_ir_mode(expression->base.type);
ir_node *cur_block = get_cur_block();
ir_node *one_block = new_immBlock();
ir_node *jmp_zero = new_d_Jmp(dbgi);
set_cur_block(cur_block);
- create_condition_evaluation((const expression_t*) expression,
- one_block, zero_block);
+ create_condition_evaluation(expression, one_block, zero_block);
mature_immBlock(one_block);
mature_immBlock(zero_block);
return val;
}
+static ir_node *create_lazy_op(const binary_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *type = expression->base.type;
+ ir_mode *mode = get_ir_mode(type);
+
+ if(is_constant_expression(expression->left)) {
+ long val = fold_constant(expression->left);
+ expression_kind_t ekind = expression->base.kind;
+ if((ekind == EXPR_BINARY_LOGICAL_AND && val != 0)
+ || (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) {
+ return expression_to_firm(expression->right);
+ } else {
+ assert((ekind == EXPR_BINARY_LOGICAL_AND && val == 0)
+ || (ekind == EXPR_BINARY_LOGICAL_OR && val != 0));
+ return new_Const(mode, get_mode_one(mode));
+ }
+ }
+
+ return produce_condition_result((const expression_t*) expression, dbgi);
+}
+
typedef ir_node * (*create_arithmetic_func)(dbg_info *dbgi, ir_node *left,
ir_node *right, ir_mode *mode);
return deref_address(irtype, addr, dbgi);
}
+static long get_offsetof_offset(const offsetof_expression_t *expression)
+{
+ type_t *orig_type = expression->type;
+ long offset = 0;
+
+ designator_t *designator = expression->designator;
+ for( ; designator != NULL; designator = designator->next) {
+ type_t *type = skip_typeref(orig_type);
+ /* be sure the type is constructed */
+ (void) get_ir_type(type);
+
+ if(designator->symbol != NULL) {
+ assert(is_type_compound(type));
+ symbol_t *symbol = designator->symbol;
+
+ declaration_t *declaration = type->compound.declaration;
+ declaration_t *iter = declaration->scope.declarations;
+ for( ; iter != NULL; iter = iter->next) {
+ if(iter->symbol == symbol) {
+ break;
+ }
+ }
+ assert(iter != NULL);
+
+ assert(iter->declaration_kind == DECLARATION_KIND_COMPOUND_MEMBER);
+ offset += get_entity_offset(iter->v.entity);
+
+ orig_type = iter->type;
+ } else {
+ expression_t *array_index = designator->array_index;
+ assert(designator->array_index != NULL);
+ assert(is_type_array(type));
+ assert(is_type_valid(array_index->base.type));
+
+ long index = fold_constant(array_index);
+ ir_type *arr_type = get_ir_type(type);
+ ir_type *elem_type = get_array_element_type(arr_type);
+ long elem_size = get_type_size_bytes(elem_type);
+
+ offset += index * elem_size;
+
+ orig_type = type->array.element_type;
+ }
+ }
+
+ return offset;
+}
+
+static ir_node *offsetof_to_firm(const offsetof_expression_t *expression)
+{
+ ir_mode *mode = get_ir_mode(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);
+
+ return new_d_Const(dbgi, mode, tv);
+}
+
+static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi,
+ ir_entity *entity, type_t *type);
+
+static ir_node *compound_literal_to_firm(
+ const compound_literal_expression_t *expression)
+{
+ type_t *type = expression->type;
+
+ /* create an entity on the stack */
+ ir_type *frame_type = get_irg_frame_type(current_ir_graph);
+
+ ident *const id = unique_ident("CompLit");
+ ir_type *const irtype = get_ir_type(type);
+ dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ ir_entity *const entity = new_d_entity(frame_type, id, irtype, dbgi);
+ set_entity_ld_ident(entity, id);
+
+ set_entity_variability(entity, variability_uninitialized);
+
+ /* create initialisation code */
+ initializer_t *initializer = expression->initializer;
+ create_local_initializer(initializer, dbgi, entity, type);
+
+ /* create a sel for the compound literal address */
+ ir_node *frame = get_local_frame(entity);
+ ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
+ return sel;
+}
+
/**
* Transform a sizeof expression into Firm code.
*/
return new_SymConst(mode, sym, symconst_type_align);
}
-static long fold_constant(const expression_t *expression)
+static void init_ir_types(void);
+long fold_constant(const expression_t *expression)
{
+ init_ir_types();
+
assert(is_constant_expression(expression));
ir_graph *old_current_ir_graph = current_ir_graph;
return va_start_expression_to_firm(&expression->va_starte);
case EXPR_VA_ARG:
return va_arg_expression_to_firm(&expression->va_arge);
- case EXPR_OFFSETOF:
case EXPR_BUILTIN_SYMBOL:
panic("unimplemented expression found");
case EXPR_BUILTIN_CONSTANT_P:
return builtin_constant_to_firm(&expression->builtin_constant);
case EXPR_BUILTIN_PREFETCH:
return builtin_prefetch_to_firm(&expression->builtin_prefetch);
+ case EXPR_OFFSETOF:
+ return offsetof_to_firm(&expression->offsetofe);
+ case EXPR_COMPOUND_LITERAL:
+ return compound_literal_to_firm(&expression->compound_literal);
case EXPR_UNKNOWN:
case EXPR_INVALID:
if(res != NULL && get_irn_mode(res) == mode_b) {
ir_mode *mode = get_ir_mode(expression->base.type);
- res = create_conv(NULL, res, mode);
+ if(is_Const(res)) {
+ if(is_Const_null(res)) {
+ return new_Const_long(mode, 0);
+ } else {
+ assert(is_Const_one(res));
+ return new_Const_long(mode, 1);
+ }
+ }
+
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ return produce_condition_result(expression, dbgi);
}
return res;
/* TODO: visibility? */
}
+
+typedef struct type_path_entry_t type_path_entry_t;
+struct type_path_entry_t {
+ type_t *type;
+ ir_initializer_t *initializer;
+ size_t index;
+ declaration_t *compound_entry;
+};
+
+typedef struct type_path_t type_path_t;
+struct type_path_t {
+ type_path_entry_t *path;
+ type_t *top_type;
+ bool invalid;
+};
+
+static __attribute__((unused)) void debug_print_type_path(const type_path_t *path)
+{
+ size_t len = ARR_LEN(path->path);
+
+ for(size_t i = 0; i < len; ++i) {
+ const type_path_entry_t *entry = & path->path[i];
+
+ type_t *type = skip_typeref(entry->type);
+ if(is_type_compound(type)) {
+ fprintf(stderr, ".%s", entry->compound_entry->symbol->string);
+ } else if(is_type_array(type)) {
+ fprintf(stderr, "[%u]", entry->index);
+ } else {
+ fprintf(stderr, "-INVALID-");
+ }
+ }
+ fprintf(stderr, " (");
+ print_type(path->top_type);
+ fprintf(stderr, ")");
+}
+
+static type_path_entry_t *get_type_path_top(const type_path_t *path)
+{
+ size_t len = ARR_LEN(path->path);
+ assert(len > 0);
+ return & path->path[len-1];
+}
+
+static type_path_entry_t *append_to_type_path(type_path_t *path)
+{
+ size_t len = ARR_LEN(path->path);
+ ARR_RESIZE(type_path_entry_t, path->path, len+1);
+
+ type_path_entry_t *result = & path->path[len];
+ memset(result, 0, sizeof(result[0]));
+ return result;
+}
+
+static size_t get_compound_size(const compound_type_t *type)
+{
+ declaration_t *declaration = type->declaration;
+ declaration_t *member = declaration->scope.declarations;
+ size_t size = 0;
+ for( ; member != NULL; member = member->next) {
+ ++size;
+ }
+ /* TODO: cache results? */
+
+ return size;
+}
+
+static ir_initializer_t *get_initializer_entry(type_path_t *path)
+{
+ type_t *orig_top_type = path->top_type;
+ type_t *top_type = skip_typeref(orig_top_type);
+
+ assert(is_type_compound(top_type) || is_type_array(top_type));
+
+ if(ARR_LEN(path->path) == 0) {
+ return NULL;
+ } else {
+ type_path_entry_t *top = get_type_path_top(path);
+ ir_initializer_t *initializer = top->initializer;
+ return get_initializer_compound_value(initializer, top->index);
+ }
+}
+
+static void descend_into_subtype(type_path_t *path)
+{
+ type_t *orig_top_type = path->top_type;
+ type_t *top_type = skip_typeref(orig_top_type);
+
+ assert(is_type_compound(top_type) || is_type_array(top_type));
+
+ ir_initializer_t *initializer = get_initializer_entry(path);
+
+ type_path_entry_t *top = append_to_type_path(path);
+ top->type = top_type;
+
+ size_t len;
+
+ if(is_type_compound(top_type)) {
+ declaration_t *declaration = top_type->compound.declaration;
+ declaration_t *entry = declaration->scope.declarations;
+
+ top->compound_entry = entry;
+ top->index = 0;
+ path->top_type = entry->type;
+ len = get_compound_size(&top_type->compound);
+ } else {
+ assert(is_type_array(top_type));
+ assert(top_type->array.size > 0);
+
+ top->index = 0;
+ path->top_type = top_type->array.element_type;
+ len = top_type->array.size;
+ }
+ if(initializer == NULL
+ || get_initializer_kind(initializer) == IR_INITIALIZER_NULL) {
+ initializer = create_initializer_compound(len);
+ /* we have to set the entry at the 2nd latest path entry... */
+ size_t path_len = ARR_LEN(path->path);
+ assert(path_len >= 1);
+ if(path_len > 1) {
+ type_path_entry_t *entry = & path->path[path_len-2];
+ ir_initializer_t *tinitializer = entry->initializer;
+ set_initializer_compound_value(tinitializer, entry->index,
+ initializer);
+ }
+ }
+ top->initializer = initializer;
+}
+
+static void ascend_from_subtype(type_path_t *path)
+{
+ type_path_entry_t *top = get_type_path_top(path);
+
+ path->top_type = top->type;
+
+ size_t len = ARR_LEN(path->path);
+ ARR_RESIZE(type_path_entry_t, path->path, len-1);
+}
+
+static void walk_designator(type_path_t *path, const designator_t *designator)
+{
+ /* designators start at current object type */
+ ARR_RESIZE(type_path_entry_t, path->path, 1);
+
+ for( ; designator != NULL; designator = designator->next) {
+ type_path_entry_t *top = get_type_path_top(path);
+ type_t *orig_type = top->type;
+ type_t *type = skip_typeref(orig_type);
+
+ if(designator->symbol != NULL) {
+ assert(is_type_compound(type));
+ size_t index = 0;
+ symbol_t *symbol = designator->symbol;
+
+ declaration_t *declaration = type->compound.declaration;
+ declaration_t *iter = declaration->scope.declarations;
+ for( ; iter != NULL; iter = iter->next, ++index) {
+ if(iter->symbol == symbol) {
+ break;
+ }
+ }
+ assert(iter != NULL);
+
+ top->type = orig_type;
+ top->compound_entry = iter;
+ top->index = index;
+ orig_type = iter->type;
+ } else {
+ expression_t *array_index = designator->array_index;
+ assert(designator->array_index != NULL);
+ assert(is_type_array(type));
+ assert(is_type_valid(array_index->base.type));
+
+ long index = fold_constant(array_index);
+ assert(index >= 0);
+#ifndef NDEBUG
+ if(type->array.size_constant == 1) {
+ long array_size = type->array.size;
+ assert(index < array_size);
+ }
+#endif
+
+ top->type = orig_type;
+ top->index = (size_t) index;
+ orig_type = type->array.element_type;
+ }
+ path->top_type = orig_type;
+
+ if(designator->next != NULL) {
+ descend_into_subtype(path);
+ }
+ }
+
+ path->invalid = false;
+}
+
+static void advance_current_object(type_path_t *path)
+{
+ if(path->invalid) {
+ /* TODO: handle this... */
+ panic("invalid initializer in ast2firm (excessive elements)");
+ return;
+ }
+
+ type_path_entry_t *top = get_type_path_top(path);
+
+ type_t *type = skip_typeref(top->type);
+ if(is_type_union(type)) {
+ top->compound_entry = NULL;
+ } else if(is_type_struct(type)) {
+ declaration_t *entry = top->compound_entry;
+
+ top->index++;
+ entry = entry->next;
+ top->compound_entry = entry;
+ if(entry != NULL) {
+ path->top_type = entry->type;
+ return;
+ }
+ } else {
+ assert(is_type_array(type));
+
+ top->index++;
+ if(!type->array.size_constant || top->index < type->array.size) {
+ return;
+ }
+ }
+
+ /* 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);
+
+ if(len > 1) {
+ ascend_from_subtype(path);
+ advance_current_object(path);
+ } else {
+ path->invalid = true;
+ }
+}
+
+
static ir_initializer_t *create_ir_initializer(
- const initializer_t *initializer);
+ const initializer_t *initializer, type_t *type);
static ir_initializer_t *create_ir_initializer_value(
const initializer_value_t *initializer)
return create_initializer_const(value);
}
-static ir_initializer_t *create_ir_initializer_compound(
- const initializer_list_t *initializer)
+static ir_initializer_t *create_ir_initializer_list(
+ const initializer_list_t *initializer, type_t *type)
{
- ir_initializer_t *irinitializer
- = create_initializer_compound(initializer->len);
+ type_path_t path;
+ memset(&path, 0, sizeof(path));
+ path.top_type = type;
+ path.path = NEW_ARR_F(type_path_entry_t, 0);
+
+ descend_into_subtype(&path);
for(size_t i = 0; i < initializer->len; ++i) {
- const initializer_t *sub_initializer = initializer->initializers[i];
- ir_initializer_t *sub_irinitializer
- = create_ir_initializer(sub_initializer);
+ const initializer_t *sub_initializer = initializer->initializers[i];
+
+ if(sub_initializer->kind == INITIALIZER_DESIGNATOR) {
+ walk_designator(&path, sub_initializer->designator.designator);
+ continue;
+ }
+
+ if(sub_initializer->kind == INITIALIZER_VALUE) {
+ /* we might have to descend into types until we're at a scalar
+ * type */
+ while(true) {
+ type_t *orig_top_type = path.top_type;
+ type_t *top_type = skip_typeref(orig_top_type);
- set_initializer_compound_value(irinitializer, i, sub_irinitializer);
+ if(is_type_scalar(top_type))
+ break;
+ descend_into_subtype(&path);
+ }
+ }
+
+ ir_initializer_t *sub_irinitializer
+ = create_ir_initializer(sub_initializer, path.top_type);
+
+ size_t path_len = ARR_LEN(path.path);
+ assert(path_len >= 1);
+ type_path_entry_t *entry = & path.path[path_len-1];
+ ir_initializer_t *tinitializer = entry->initializer;
+ set_initializer_compound_value(tinitializer, entry->index,
+ sub_irinitializer);
+
+ advance_current_object(&path);
}
- return irinitializer;
+ assert(ARR_LEN(path.path) >= 1);
+ ir_initializer_t *result = path.path[0].initializer;
+ DEL_ARR_F(path.path);
+
+ return result;
}
static ir_initializer_t *create_ir_initializer_string(
- const initializer_string_t *initializer)
+ const initializer_string_t *initializer, type_t *type)
{
- size_t len = initializer->string.size;
+ size_t string_len = initializer->string.size;
+ assert(type->kind == TYPE_ARRAY && type->array.size_constant);
+ size_t len = type->array.size;
ir_initializer_t *irinitializer = create_initializer_compound(len);
const char *string = initializer->string.begin;
ir_mode *mode = get_type_mode(ir_type_const_char);
for(size_t i = 0; i < len; ++i) {
- tarval *tv = new_tarval_from_long(string[i], mode);
+ char c = 0;
+ if(i < string_len)
+ c = string[i];
+
+ tarval *tv = new_tarval_from_long(string[i], mode);
ir_initializer_t *char_initializer = create_initializer_tarval(tv);
set_initializer_compound_value(irinitializer, i, char_initializer);
}
static ir_initializer_t *create_ir_initializer_wide_string(
- const initializer_wide_string_t *initializer)
+ const initializer_wide_string_t *initializer, type_t *type)
{
- size_t len = initializer->string.size;
+ size_t string_len = initializer->string.size;
+ assert(type->kind == TYPE_ARRAY && type->array.size_constant);
+ size_t len = type->array.size;
ir_initializer_t *irinitializer = create_initializer_compound(len);
const wchar_rep_t *string = initializer->string.begin;
ir_mode *mode = get_type_mode(ir_type_wchar_t);
for(size_t i = 0; i < len; ++i) {
+ wchar_rep_t c = 0;
+ if(i < string_len) {
+ c = string[i];
+ }
tarval *tv = new_tarval_from_long(string[i], mode);
ir_initializer_t *char_initializer = create_initializer_tarval(tv);
return irinitializer;
}
-static ir_initializer_t *create_ir_initializer(const initializer_t *initializer)
+static ir_initializer_t *create_ir_initializer(
+ const initializer_t *initializer, type_t *type)
{
- switch((initializer_kind_t) initializer->kind) {
+ switch(initializer->kind) {
case INITIALIZER_STRING:
- return create_ir_initializer_string(&initializer->string);
+ return create_ir_initializer_string(&initializer->string, type);
case INITIALIZER_WIDE_STRING:
- return create_ir_initializer_wide_string(&initializer->wide_string);
+ return create_ir_initializer_wide_string(&initializer->wide_string,
+ type);
case INITIALIZER_LIST:
- return create_ir_initializer_compound(&initializer->list);
+ return create_ir_initializer_list(&initializer->list, type);
case INITIALIZER_VALUE:
return create_ir_initializer_value(&initializer->value);
+
+ case INITIALIZER_DESIGNATOR:
+ panic("unexpected designator initializer found");
}
panic("unknown initializer");
}
-static void create_initializer_local_variable_entity(declaration_t *declaration)
+static void create_dynamic_initializer_sub(ir_initializer_t *initializer,
+ ir_type *type, dbg_info *dbgi, ir_node *base_addr)
{
- initializer_t *initializer = declaration->init.initializer;
- dbg_info *dbgi = get_dbg_info(&declaration->source_position);
- ir_entity *entity = declaration->v.entity;
- ir_node *memory = get_store();
- ir_node *nomem = new_NoMem();
- ir_node *frame = get_irg_frame(current_ir_graph);
- ir_node *addr = new_d_simpleSel(dbgi, nomem, frame, entity);
+ switch(get_initializer_kind(initializer)) {
+ case IR_INITIALIZER_NULL: {
+ ir_mode *mode = get_type_mode(type);
+ /* TODO: implement this for compound types... */
+ assert(type != NULL);
+ tarval *zero = get_mode_null(mode);
+ ir_node *cnst = new_d_Const(dbgi, mode, zero);
+
+ /* TODO: bitfields */
+ ir_node *mem = get_store();
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst);
+ ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+ set_store(proj_m);
+ return;
+ }
+ case IR_INITIALIZER_CONST: {
+ ir_node *node = get_initializer_const_value(initializer);
+ ir_mode *mode = get_irn_mode(node);
+ assert(get_type_mode(type) == mode);
+
+ /* TODO: bitfields... */
+ ir_node *mem = get_store();
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, node);
+ ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+ set_store(proj_m);
+ return;
+ }
+ case IR_INITIALIZER_TARVAL: {
+ tarval *tv = get_initializer_tarval_value(initializer);
+ ir_mode *mode = get_tarval_mode(tv);
+ ir_node *cnst = new_d_Const(dbgi, mode, tv);
+ assert(get_type_mode(type) == mode);
+
+ /* TODO: bitfields... */
+ ir_node *mem = get_store();
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst);
+ ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+ set_store(proj_m);
+ return;
+ }
+ case IR_INITIALIZER_COMPOUND: {
+ assert(is_compound_type(type));
+ int n_members;
+ if(is_Array_type(type)) {
+ assert(has_array_upper_bound(type, 0));
+ n_members = get_array_upper_bound_int(type, 0);
+ } else {
+ n_members = get_compound_n_members(type);
+ }
+
+ if(get_initializer_compound_n_entries(initializer)
+ != (unsigned) n_members)
+ panic("initializer doesn't match compound type");
+
+ for(int i = 0; i < n_members; ++i) {
+ ir_node *addr;
+ ir_type *irtype;
+ if(is_Array_type(type)) {
+ ir_entity *entity = get_array_element_entity(type);
+ tarval *index_tv = new_tarval_from_long(i, mode_uint);
+ ir_node *cnst = new_d_Const(dbgi, mode_uint, index_tv);
+ ir_node *in[1] = { cnst };
+ irtype = get_array_element_type(type);
+ addr = new_d_Sel(dbgi, new_NoMem(), base_addr, 1, in, entity);
+ } else {
+ ir_entity *member = get_compound_member(type, i);
+
+ irtype = get_entity_type(member);
+ addr = new_d_simpleSel(dbgi, new_NoMem(), base_addr, member);
+ }
+
+ ir_initializer_t *sub_init
+ = get_initializer_compound_value(initializer, i);
+
+ create_dynamic_initializer_sub(sub_init, irtype, dbgi, addr);
+ }
+ return;
+ }
+ }
+
+ panic("invalid IR_INITIALIZER found");
+}
+
+static void create_dynamic_initializer(ir_initializer_t *initializer,
+ dbg_info *dbgi, ir_entity *entity)
+{
+ ir_node *frame = get_local_frame(entity);
+ ir_node *base_addr = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
+ ir_type *type = get_entity_type(entity);
+
+ create_dynamic_initializer_sub(initializer, type, dbgi, base_addr);
+}
+
+static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi,
+ ir_entity *entity, type_t *type)
+{
+ ir_node *memory = get_store();
+ ir_node *nomem = new_NoMem();
+ ir_node *frame = get_irg_frame(current_ir_graph);
+ ir_node *addr = new_d_simpleSel(dbgi, nomem, frame, entity);
if(initializer->kind == INITIALIZER_VALUE) {
initializer_value_t *initializer_value = &initializer->value;
ir_node *value = expression_to_firm(initializer_value->value);
- type_t *type = skip_typeref(declaration->type);
+ type = skip_typeref(type);
assign_value(dbgi, addr, type, value);
return;
}
+ if(!is_constant_initializer(initializer)) {
+ ir_initializer_t *irinitializer
+ = create_ir_initializer(initializer, type);
+
+ create_dynamic_initializer(irinitializer, dbgi, entity);
+ return;
+ }
+
+ /* create the ir_initializer */
+ ir_graph *const old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ ir_initializer_t *irinitializer = create_ir_initializer(initializer, type);
+
+ assert(current_ir_graph == get_const_code_irg());
+ current_ir_graph = old_current_ir_graph;
+
/* create a "template" entity which is copied to the entity on the stack */
ident *const id = unique_ident("initializer");
- ir_type *const irtype = get_ir_type(declaration->type);
+ ir_type *const irtype = get_ir_type(type);
ir_type *const global_type = get_glob_type();
ir_entity *const init_entity = new_d_entity(global_type, id, irtype, dbgi);
set_entity_ld_ident(init_entity, id);
set_entity_visibility(init_entity, visibility_local);
set_entity_allocation(init_entity, allocation_static);
- ir_graph *const old_current_ir_graph = current_ir_graph;
- current_ir_graph = get_const_code_irg();
-
- ir_initializer_t *irinitializer = create_ir_initializer(initializer);
set_entity_initializer(init_entity, irinitializer);
- assert(current_ir_graph == get_const_code_irg());
- current_ir_graph = old_current_ir_graph;
-
- ir_node *const src_addr = create_symconst(dbgi, mode_P_data, init_entity);
- ir_node *const copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype);
+ ir_node *const src_addr = create_symconst(dbgi, mode_P_data, 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_regular);
set_store(copyb_mem);
}
+static void create_initializer_local_variable_entity(declaration_t *declaration)
+{
+ initializer_t *initializer = declaration->init.initializer;
+ dbg_info *dbgi = get_dbg_info(&declaration->source_position);
+ ir_entity *entity = declaration->v.entity;
+ type_t *type = declaration->type;
+ create_local_initializer(initializer, dbgi, entity, type);
+}
+
static void create_declaration_initializer(declaration_t *declaration)
{
initializer_t *initializer = declaration->init.initializer;
|| declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE);
ir_entity *entity = declaration->v.entity;
- ir_initializer_t *irinitializer = create_ir_initializer(initializer);
+ ir_initializer_t *irinitializer
+ = create_ir_initializer(initializer, declaration->type);
set_entity_variability(entity, variability_initialized);
set_entity_initializer(entity, irinitializer);
case STORAGE_CLASS_STATIC:
create_local_static_variable(declaration);
return;
- case STORAGE_CLASS_ENUM_ENTRY:
- panic("enum entry declaration in local block found");
case STORAGE_CLASS_EXTERN:
create_global_variable(declaration);
create_declaration_initializer(declaration);
create_local_variable(declaration);
}
return;
+ case STORAGE_CLASS_ENUM_ENTRY:
case STORAGE_CLASS_TYPEDEF:
case STORAGE_CLASS_THREAD:
case STORAGE_CLASS_THREAD_EXTERN:
}
set_type_size_bytes(frame_type, offset);
set_type_alignment_bytes(frame_type, align_all);
- set_type_state(frame_type, layout_fixed);
irg_vrfy(irg);
}
}
}
-void exit_ast2firm(void)
+static void init_ir_types(void)
{
- obstack_free(&asm_obst, NULL);
-}
+ static int ir_types_initialized = 0;
+ if(ir_types_initialized)
+ return;
+ ir_types_initialized = 1;
-void translation_unit_to_firm(translation_unit_t *unit)
-{
type_const_char = make_atomic_type(ATOMIC_TYPE_CHAR, TYPE_QUALIFIER_CONST);
type_void = make_atomic_type(ATOMIC_TYPE_VOID, TYPE_QUALIFIER_NONE);
type_int = make_atomic_type(ATOMIC_TYPE_INT, TYPE_QUALIFIER_NONE);
type in firm */
type_void->base.firm_type = ir_type_void;
+}
+void exit_ast2firm(void)
+{
+ obstack_free(&asm_obst, NULL);
+}
+
+void translation_unit_to_firm(translation_unit_t *unit)
+{
/* just to be sure */
continue_label = NULL;
break_label = NULL;
current_switch_cond = NULL;
+ init_ir_types();
+
scope_to_firm(&unit->scope);
}
projects / cparser / blobdiff