#include "token_t.h"
#include "type_t.h"
#include "ast_t.h"
+#include "parser.h"
#define MAGIC_DEFAULT_PN_NUMBER (long) -314159265
static ir_type *ir_type_const_char;
+static ir_type *ir_type_wchar_t;
static ir_type *ir_type_void;
static ir_type *ir_type_int;
-static ir_type *ir_type_void_ptr;
static type_t *type_const_char;
static type_t *type_void;
static ir_node *continue_label;
static ir_node *break_label;
static ir_node *current_switch_cond;
+static bool saw_default_label;
static ir_node **imature_blocks;
+static const declaration_t *current_function_decl;
+static ir_node *current_function_name;
+
+static struct obstack asm_obst;
+
typedef enum declaration_type_t {
DECLARATION_TYPE_UNKNOWN,
DECLARATION_TYPE_FUNCTION,
DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY,
DECLARATION_TYPE_COMPOUND_MEMBER,
DECLARATION_TYPE_LABEL_BLOCK,
+ DECLARATION_TYPE_ENUM_ENTRY
} declaration_type_t;
static ir_type *get_ir_type(type_t *type);
pos->linenr);
}
-const char *retrieve_dbg(const dbg_info *dbg, unsigned *line)
+const char *dbg_retrieve(const dbg_info *dbg, unsigned *line)
{
const source_position_t *pos = (const source_position_t*) dbg;
if(pos == NULL)
void init_ast2firm(void)
{
- type_const_char = make_atomic_type(ATOMIC_TYPE_CHAR, TYPE_QUALIFIER_CONST);
- type_void = make_atomic_type(ATOMIC_TYPE_VOID, 0);
- type_int = make_atomic_type(ATOMIC_TYPE_INT, 0);
-
- ir_type_int = get_ir_type(type_int);
- ir_type_const_char = get_ir_type(type_const_char);
- ir_type_void = get_ir_type(type_int); /* we don't have a real void
- type in firm */
- ir_type_void_ptr = new_type_pointer(new_id_from_str("void_ptr"),
- ir_type_void, mode_P_data);
-
- type_void->firm_type = ir_type_void;
+ obstack_init(&asm_obst);
}
void exit_ast2firm(void)
{
+ obstack_free(&asm_obst, NULL);
}
static unsigned unique_id = 0;
{
char buf[256];
- snprintf(buf, sizeof(buf), "%s.%d", tag, unique_id);
+ snprintf(buf, sizeof(buf), "%s.%u", tag, unique_id);
unique_id++;
return new_id_from_str(buf);
}
return mode_Hs;
case ATOMIC_TYPE_USHORT:
return mode_Hu;
+ case ATOMIC_TYPE_BOOL:
case ATOMIC_TYPE_LONG:
case ATOMIC_TYPE_INT:
return mode_Is;
return mode_D;
case ATOMIC_TYPE_LONG_DOUBLE:
return mode_E;
- case ATOMIC_TYPE_BOOL:
- return mode_b;
#ifdef PROVIDE_COMPLEX
case ATOMIC_TYPE_FLOAT_COMPLEX:
case ATOMIC_TYPE_DOUBLE_COMPLEX:
static unsigned get_compound_type_size(compound_type_t *type)
{
- ir_type *irtype = get_ir_type(&type->type);
+ ir_type *irtype = get_ir_type((type_t*) type);
return get_type_size_bytes(irtype);
}
static unsigned get_array_type_size(array_type_t *type)
{
- ir_type *irtype = get_ir_type(&type->type);
+ ir_type *irtype = get_ir_type((type_t*) type);
return get_type_size_bytes(irtype);
}
switch(type->type) {
case TYPE_ATOMIC:
- return get_atomic_type_size((const atomic_type_t*) type);
+ return get_atomic_type_size(&type->atomic);
case TYPE_ENUM:
return get_mode_size_bytes(mode_Is);
case TYPE_COMPOUND_UNION:
case TYPE_COMPOUND_STRUCT:
- return get_compound_type_size((compound_type_t*) type);
+ return get_compound_type_size(&type->compound);
case TYPE_FUNCTION:
/* just a pointer to the function */
return get_mode_size_bytes(mode_P_code);
case TYPE_POINTER:
return get_mode_size_bytes(mode_P_data);
case TYPE_ARRAY:
- return get_array_type_size((array_type_t*) type);
+ return get_array_type_size(&type->array);
case TYPE_BUILTIN:
+ return get_type_size(type->builtin.real_type);
case TYPE_TYPEDEF:
case TYPE_TYPEOF:
case TYPE_INVALID:
ident *id = get_mode_ident(mode);
ir_type *irtype = new_type_primitive(id, mode);
+ if(type->atype == ATOMIC_TYPE_LONG_DOUBLE) {
+ set_type_alignment_bytes(irtype, 4);
+ }
+
return irtype;
}
static ir_type *create_method_type(const function_type_t *function_type)
{
- type_t *result_type = function_type->result_type;
+ type_t *return_type = function_type->return_type;
ident *id = unique_ident("functiontype");
int n_parameters = count_parameters(function_type);
- int n_results = result_type == type_void ? 0 : 1;
+ int n_results = return_type == type_void ? 0 : 1;
ir_type *irtype = new_type_method(id, n_parameters, n_results);
- if(result_type != type_void) {
- ir_type *restype = get_ir_type(result_type);
+ if(return_type != type_void) {
+ ir_type *restype = get_ir_type(return_type);
set_method_res_type(irtype, 0, restype);
}
int offset = 0;
declaration_t *entry = type->declaration->context.declarations;
for( ; entry != NULL; entry = entry->next) {
- if(entry->namespace != NAMESPACE_NORMAL)
+ if(entry->namespc != NAMESPACE_NORMAL)
continue;
ident *ident = new_id_from_str(entry->symbol->string);
int entry_size = get_type_size_bytes(entry_ir_type);
int entry_alignment = get_type_alignment_bytes(entry_ir_type);
- int misalign = offset % entry_alignment;
- offset += misalign;
+ int misalign = offset % entry_alignment;
+ if (misalign != 0)
+ offset += entry_alignment - misalign;
ir_entity *entity = new_entity(ir_type, ident, entry_ir_type);
set_entity_offset(entity, offset);
int size = 0;
declaration_t *entry = declaration->context.declarations;
for( ; entry != NULL; entry = entry->next) {
- if(entry->namespace != NAMESPACE_NORMAL)
+ if(entry->namespc != NAMESPACE_NORMAL)
continue;
ident *ident = new_id_from_str(entry->symbol->string);
return ir_type;
}
+static ir_node *expression_to_firm(const expression_t *expression);
+static inline ir_mode *get_ir_mode(type_t *type);
+
+static ir_type *create_enum_type(enum_type_t *const type)
+{
+ type->type.firm_type = ir_type_int;
+
+ ir_mode *const mode = get_ir_mode((type_t*) type);
+ tarval *const one = get_mode_one(mode);
+ tarval * tv_next = get_tarval_null(mode);
+
+ declaration_t *declaration = type->declaration->next;
+ for (; declaration != NULL; declaration = declaration->next) {
+ if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY)
+ break;
+
+ declaration->declaration_type = DECLARATION_TYPE_ENUM_ENTRY;
+
+ expression_t *const init = declaration->init.enum_value;
+ if (init != NULL) {
+ ir_node *const cnst = expression_to_firm(init);
+ if (!is_Const(cnst)) {
+ panic("couldn't fold constant");
+ }
+ tv_next = get_Const_tarval(cnst);
+ }
+ declaration->v.enum_val = tv_next;
+ tv_next = tarval_add(tv_next, one);
+ }
+
+ return ir_type_int;
+}
+
static ir_type *get_ir_type(type_t *type)
{
assert(type != NULL);
type = skip_typeref(type);
- if(type->firm_type != NULL) {
- assert(type->firm_type != INVALID_TYPE);
- return type->firm_type;
+ if(type->base.firm_type != NULL) {
+ assert(type->base.firm_type != INVALID_TYPE);
+ return type->base.firm_type;
}
ir_type *firm_type = NULL;
switch(type->type) {
case TYPE_ATOMIC:
- firm_type = create_atomic_type((atomic_type_t*) type);
+ firm_type = create_atomic_type(&type->atomic);
break;
case TYPE_FUNCTION:
- firm_type = create_method_type((function_type_t*) type);
+ firm_type = create_method_type(&type->function);
break;
case TYPE_POINTER:
- firm_type = create_pointer_type((pointer_type_t*) type);
+ firm_type = create_pointer_type(&type->pointer);
break;
case TYPE_ARRAY:
- firm_type = create_array_type((array_type_t*) type);
+ firm_type = create_array_type(&type->array);
break;
case TYPE_COMPOUND_STRUCT:
- firm_type = create_struct_type((compound_type_t*) type);
+ firm_type = create_struct_type(&type->compound);
break;
case TYPE_COMPOUND_UNION:
- firm_type = create_union_type((compound_type_t*) type);
+ firm_type = create_union_type(&type->compound);
break;
case TYPE_ENUM:
- firm_type = ir_type_int;
+ firm_type = create_enum_type(&type->enumt);
break;
case TYPE_BUILTIN:
+ firm_type = get_ir_type(type->builtin.real_type);
+ break;
case TYPE_TYPEOF:
case TYPE_TYPEDEF:
case TYPE_INVALID:
if(firm_type == NULL)
panic("unknown type found");
- type->firm_type = firm_type;
+ type->base.firm_type = firm_type;
return firm_type;
}
return mode_P;
}
- ir_mode *mode = get_type_mode(irtype);
+ ir_mode *mode = get_type_mode(irtype);
assert(mode != NULL);
return mode;
}
ir_type *ir_type_method = get_ir_type(declaration->type);
assert(is_Method_type(ir_type_method));
- type_t *type = declaration->type;
ir_entity *entity = new_entity(global_type, id, ir_type_method);
set_entity_ld_ident(entity, id);
- if(declaration->storage_class & STORAGE_CLASS_STATIC
- || type->qualifiers & TYPE_QUALIFIER_INLINE) {
+ if(declaration->storage_class == STORAGE_CLASS_STATIC
+ || declaration->is_inline) {
set_entity_visibility(entity, visibility_local);
} else if(declaration->init.statement != NULL) {
set_entity_visibility(entity, visibility_external_visible);
} else {
set_entity_visibility(entity, visibility_external_allocated);
}
+ set_entity_allocation(entity, allocation_static);
declaration->declaration_type = DECLARATION_TYPE_FUNCTION;
declaration->v.entity = entity;
return entity;
}
-
-
-static ir_node *expression_to_firm(const expression_t *expression);
-static ir_node *expression_to_modeb(const expression_t *expression);
-
static dbg_info *get_dbg_info(const source_position_t *pos)
{
return (dbg_info*) pos;
}
-static ir_node *const_to_firm(const const_t *cnst)
+static ir_node *const_to_firm(const const_expression_t *cnst)
{
dbg_info *dbgi = get_dbg_info(&cnst->expression.source_position);
ir_mode *mode = get_ir_mode(cnst->expression.datatype);
- tarval *tv;
+ char buf[128];
+ tarval *tv;
+ size_t len;
if(mode_is_float(mode)) {
tv = new_tarval_from_double(cnst->v.float_value, mode);
} else {
- tv = new_tarval_from_long(cnst->v.int_value, mode);
+ if(mode_is_signed(mode)) {
+ len = snprintf(buf, sizeof(buf), "%lld", cnst->v.int_value);
+ } else {
+ len = snprintf(buf, sizeof(buf), "%llu",
+ (unsigned long long) cnst->v.int_value);
+ }
+ tv = new_tarval_from_str(buf, len, mode);
}
return new_d_Const(dbgi, mode, tv);
return new_d_SymConst(dbgi, sym, symconst_addr_ent);
}
-static ir_node *string_literal_to_firm(const string_literal_t* literal)
+static ir_node *string_to_firm(const source_position_t *const src_pos,
+ const char *const id_prefix,
+ const char *const string)
{
- ir_type *global_type = get_glob_type();
- ir_type *type = new_type_array(unique_ident("strtype"), 1,
- ir_type_const_char);
+ ir_type *const global_type = get_glob_type();
+ ir_type *const type = new_type_array(unique_ident("strtype"), 1,
+ ir_type_const_char);
- ident *id = unique_ident("Lstr");
- ir_entity *entity = new_entity(global_type, id, type);
+ ident *const id = unique_ident(id_prefix);
+ ir_entity *const entity = new_entity(global_type, id, type);
set_entity_ld_ident(entity, id);
set_entity_variability(entity, variability_constant);
+ set_entity_allocation(entity, allocation_static);
- ir_type *elem_type = ir_type_const_char;
- ir_mode *mode = get_type_mode(elem_type);
+ ir_type *const elem_type = ir_type_const_char;
+ ir_mode *const mode = get_type_mode(elem_type);
- const char *string = literal->value;
- size_t slen = strlen(string) + 1;
+ const size_t slen = strlen(string) + 1;
set_array_lower_bound_int(type, 0, 0);
set_array_upper_bound_int(type, 0, slen);
set_type_size_bytes(type, slen);
set_type_state(type, layout_fixed);
- tarval **tvs = xmalloc(slen * sizeof(tvs[0]));
+ tarval **const tvs = xmalloc(slen * sizeof(tvs[0]));
for(size_t i = 0; i < slen; ++i) {
tvs[i] = new_tarval_from_long(string[i], mode);
}
set_array_entity_values(entity, tvs, slen);
free(tvs);
- dbg_info *dbgi = get_dbg_info(&literal->expression.source_position);
+ dbg_info *const dbgi = get_dbg_info(src_pos);
return create_symconst(dbgi, entity);
}
-static ir_node *load_from_expression_addr(type_t *type, ir_node *addr,
- dbg_info *dbgi)
+static ir_node *string_literal_to_firm(
+ const string_literal_expression_t* literal)
{
- ir_mode *mode = get_ir_mode(type);
- ir_node *memory = get_store();
- ir_node *load = new_d_Load(dbgi, memory, addr, mode);
- 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);
- set_store(load_mem);
+ return string_to_firm(&literal->expression.source_position, "Lstr",
+ literal->value);
+}
+
+static ir_node *wide_string_literal_to_firm(
+ const wide_string_literal_expression_t* const literal)
+{
+ ir_type *const global_type = get_glob_type();
+ ir_type *const elem_type = ir_type_wchar_t;
+ ir_type *const type = new_type_array(unique_ident("strtype"), 1,
+ elem_type);
+
+ ident *const id = unique_ident("Lstr");
+ ir_entity *const entity = new_entity(global_type, id, type);
+ set_entity_ld_ident(entity, id);
+ set_entity_variability(entity, variability_constant);
+ set_entity_allocation(entity, allocation_static);
+
+ ir_mode *const mode = get_type_mode(elem_type);
+
+ const wchar_rep_t *const string = literal->value.begin;
+ const size_t slen = literal->value.size;
+
+ set_array_lower_bound_int(type, 0, 0);
+ set_array_upper_bound_int(type, 0, slen);
+ set_type_size_bytes(type, slen);
+ set_type_state(type, layout_fixed);
+ tarval **const tvs = xmalloc(slen * sizeof(tvs[0]));
+ for(size_t i = 0; i < slen; ++i) {
+ tvs[i] = new_tarval_from_long(string[i], mode);
+ }
+
+ set_array_entity_values(entity, tvs, slen);
+ free(tvs);
+
+ dbg_info *const dbgi = get_dbg_info(&literal->expression.source_position);
+
+ return create_symconst(dbgi, entity);
+}
+
+static ir_node *deref_address(ir_type *const irtype, ir_node *const addr,
+ dbg_info *const dbgi)
+{
+ if(is_compound_type(irtype) || is_Array_type(irtype)) {
+ return addr;
+ }
+
+ ir_mode *const mode = get_type_mode(irtype);
+ ir_node *const memory = get_store();
+ ir_node *const load = new_d_Load(dbgi, memory, addr, mode);
+ ir_node *const load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
+ ir_node *const load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
+ set_store(load_mem);
return load_res;
}
+static ir_node *do_strict_conv(dbg_info *dbgi, ir_node *node)
+{
+ ir_mode *mode = get_irn_mode(node);
+
+ if(!(get_irg_fp_model(current_ir_graph) & fp_explicit_rounding))
+ return node;
+ if(!mode_is_float(mode))
+ return node;
+
+ /* check if there is already a Conv */
+ if (get_irn_op(node) == op_Conv) {
+ /* convert it into a strict Conv */
+ set_Conv_strict(node, 1);
+ return node;
+ }
+
+ /* otherwise create a new one */
+ return new_d_strictConv(dbgi, node, mode);
+}
+
+static ir_node *get_global_var_address(dbg_info *const dbgi,
+ const declaration_t *const decl)
+{
+ assert(decl->declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE);
+
+ ir_entity *const entity = decl->v.entity;
+ switch ((storage_class_tag_t)decl->storage_class) {
+ case STORAGE_CLASS_THREAD:
+ case STORAGE_CLASS_THREAD_EXTERN:
+ case STORAGE_CLASS_THREAD_STATIC: {
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const tls = get_irg_tls(current_ir_graph);
+ return new_d_simpleSel(dbgi, no_mem, tls, entity);
+ }
+
+ default:
+ return create_symconst(dbgi, entity);
+ }
+}
+
static ir_node *reference_expression_to_firm(const reference_expression_t *ref)
{
dbg_info *dbgi = get_dbg_info(&ref->expression.source_position);
declaration_t *declaration = ref->declaration;
type_t *type = skip_typeref(declaration->type);
- ir_mode *mode = get_ir_mode(type);
switch((declaration_type_t) declaration->declaration_type) {
case DECLARATION_TYPE_UNKNOWN:
- break;
- case DECLARATION_TYPE_LOCAL_VARIABLE:
+ if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY) {
+ break;
+ }
+ get_ir_type(type);
+ /* FALLTHROUGH */
+
+ case DECLARATION_TYPE_ENUM_ENTRY: {
+ ir_mode *const mode = get_ir_mode(type);
+ return new_Const(mode, declaration->v.enum_val);
+ }
+
+ case DECLARATION_TYPE_LOCAL_VARIABLE: {
+ ir_mode *mode = get_ir_mode(type);
return get_value(declaration->v.value_number, mode);
+ }
case DECLARATION_TYPE_FUNCTION: {
return create_symconst(dbgi, declaration->v.entity);
}
case DECLARATION_TYPE_GLOBAL_VARIABLE: {
- ir_entity *entity = declaration->v.entity;
- ir_node *symconst = create_symconst(dbgi, entity);
+ ir_node *const addr = get_global_var_address(dbgi, declaration);
+ ir_type *const irtype = get_entity_type(declaration->v.entity);
+ return deref_address(irtype, addr, dbgi);
+ }
- if(type->type == TYPE_ARRAY) {
- return symconst;
- } else {
- return load_from_expression_addr(type, symconst, dbgi);
- }
+ case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY: {
+ ir_entity *entity = declaration->v.entity;
+ ir_node *frame = get_irg_frame(current_ir_graph);
+ ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
+ ir_type *irtype = get_entity_type(entity);
+ return deref_address(irtype, sel, dbgi);
}
- case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY:
+
case DECLARATION_TYPE_COMPOUND_MEMBER:
case DECLARATION_TYPE_LABEL_BLOCK:
panic("not implemented reference type");
return create_symconst(dbgi, declaration->v.entity);
}
case DECLARATION_TYPE_GLOBAL_VARIABLE: {
- ir_entity *entity = declaration->v.entity;
- ir_node *symconst = create_symconst(dbgi, entity);
- return symconst;
+ ir_node *const addr = get_global_var_address(dbgi, declaration);
+ return addr;
}
- case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY:
+ case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY: {
+ ir_entity *entity = declaration->v.entity;
+ ir_node *frame = get_irg_frame(current_ir_graph);
+ ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
+
+ return sel;
+ }
+
+ case DECLARATION_TYPE_ENUM_ENTRY:
+ panic("trying to reference enum entry");
+
case DECLARATION_TYPE_COMPOUND_MEMBER:
case DECLARATION_TYPE_LABEL_BLOCK:
panic("not implemented reference type");
panic("reference to declaration with unknown type found");
}
+static ir_node *process_builtin_call(const call_expression_t *call)
+{
+ dbg_info *dbgi = get_dbg_info(&call->expression.source_position);
+
+ assert(call->function->type == EXPR_BUILTIN_SYMBOL);
+ builtin_symbol_expression_t *builtin = &call->function->builtin_symbol;
+
+ type_t *type = skip_typeref(builtin->expression.datatype);
+ assert(is_type_pointer(type));
+
+ type_t *function_type = skip_typeref(type->pointer.points_to);
+ symbol_t *symbol = builtin->symbol;
+
+ switch(symbol->ID) {
+ case T___builtin_alloca: {
+ if(call->arguments == NULL || call->arguments->next != NULL) {
+ panic("invalid number of parameters on __builtin_alloca");
+ }
+ expression_t *argument = call->arguments->expression;
+ ir_node *size = expression_to_firm(argument);
+
+ 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;
+ }
+ case T___builtin_nan:
+ case T___builtin_nanf:
+ case T___builtin_nand: {
+ /* Ignore string for now... */
+ assert(is_type_function(function_type));
+ ir_mode *mode = get_ir_mode(function_type->function.return_type);
+ tarval *tv = get_mode_NAN(mode);
+ ir_node *res = new_d_Const(dbgi, mode, tv);
+ return res;
+ }
+ case T___builtin_va_end:
+ return NULL;
+ default:
+ panic("Unsupported builtin found\n");
+ }
+}
+
static ir_node *call_expression_to_firm(const call_expression_t *call)
{
assert(get_cur_block() != NULL);
- expression_t *function = call->function;
- ir_node *callee = expression_to_firm(function);
+ expression_t *function = call->function;
+ if(function->type == EXPR_BUILTIN_SYMBOL) {
+ return process_builtin_call(call);
+ }
+ ir_node *callee = expression_to_firm(function);
- assert(function->datatype->type == TYPE_FUNCTION);
- function_type_t *function_type = (function_type_t*) function->datatype;
+ type_t *type = skip_typeref(function->base.datatype);
+ assert(is_type_pointer(type));
+ pointer_type_t *pointer_type = &type->pointer;
+ type_t *points_to = skip_typeref(pointer_type->points_to);
+ assert(is_type_function(points_to));
+ function_type_t *function_type = &points_to->function;
int n_parameters = 0;
call_argument_t *argument = call->arguments;
++n_parameters;
}
+ dbg_info *dbgi = get_dbg_info(&call->expression.source_position);
+
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);
+ arg_node = do_strict_conv(dbgi, arg_node);
+
in[n] = arg_node;
if(new_method_type != NULL) {
- ir_type *irtype = get_ir_type(expression->datatype);
+ ir_type *irtype = get_ir_type(expression->base.datatype);
set_method_param_type(new_method_type, n, irtype);
}
if(new_method_type != NULL)
ir_method_type = new_method_type;
- dbg_info *dbgi = get_dbg_info(&call->expression.source_position);
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_regular);
set_store(mem);
- type_t *result_type = function_type->result_type;
+ type_t *return_type = skip_typeref(function_type->return_type);
ir_node *result = NULL;
- if(result_type != type_void) {
- ir_mode *mode = get_ir_mode(result_type);
+
+ if(!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
+ ir_mode *mode;
+ if(is_type_scalar(return_type)) {
+ mode = get_ir_mode(return_type);
+ } else {
+ mode = mode_P_data;
+ }
ir_node *resproj = new_d_Proj(dbgi, node, mode_T, pn_Call_T_result);
result = new_d_Proj(dbgi, resproj, mode, 0);
}
return result;
}
+static void statement_to_firm(statement_t *statement);
+static ir_node *compound_statement_to_firm(compound_statement_t *compound);
+
static ir_node *expression_to_addr(const expression_t *expression);
+static void create_condition_evaluation(const expression_t *expression,
+ ir_node *true_block,
+ ir_node *false_block);
+
+static void assign_value(dbg_info *dbgi, ir_node *addr, type_t *type,
+ ir_node *value)
+{
+ value = do_strict_conv(dbgi, value);
+
+ ir_node *memory = get_store();
+
+ if(is_type_scalar(type)) {
+ ir_node *store = new_d_Store(dbgi, memory, addr, value);
+ ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
+ set_store(store_mem);
+ } else {
+ ir_type *irtype = get_ir_type(type);
+ ir_node *copyb = new_d_CopyB(dbgi, memory, addr, value, irtype);
+ ir_node *copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular);
+ set_store(copyb_mem);
+ }
+}
static void set_value_for_expression(const expression_t *expression,
ir_node *value)
{
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ value = do_strict_conv(dbgi, value);
+
if(expression->type == EXPR_REFERENCE) {
reference_expression_t *ref = (reference_expression_t*) expression;
}
}
- dbg_info *dbgi = get_dbg_info(&expression->source_position);
- ir_node *addr = expression_to_addr(expression);
- assert(get_irn_mode(value) == get_ir_mode(expression->datatype));
- ir_node *memory = get_store();
- ir_node *store = new_d_Store(dbgi, memory, addr, value);
- ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
- set_store(store_mem);
+ ir_node *addr = expression_to_addr(expression);
+ type_t *type = skip_typeref(expression->base.datatype);
+ assign_value(dbgi, addr, type, value);
}
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)
+ if (value_mode == dest_mode || is_Bad(value))
return value;
if(dest_mode == mode_b) {
return new_d_Conv(dbgi, value, dest_mode);
}
+static ir_node *create_incdec(const unary_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *type = skip_typeref(expression->expression.datatype);
+ ir_mode *mode = get_ir_mode(type);
+ expression_t *value = expression->value;
+
+ ir_node *value_node = expression_to_firm(value);
+
+ ir_node *offset;
+ if(is_type_pointer(type)) {
+ pointer_type_t *pointer_type = &type->pointer;
+ unsigned elem_size = get_type_size(pointer_type->points_to);
+ offset = new_Const_long(mode_Is, elem_size);
+ } else {
+ assert(is_type_arithmetic(type));
+ offset = new_Const(mode, get_mode_one(mode));
+ }
+
+ switch(expression->expression.type) {
+ case EXPR_UNARY_POSTFIX_INCREMENT: {
+ ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode);
+ set_value_for_expression(value, new_value);
+ return value_node;
+ }
+ case EXPR_UNARY_POSTFIX_DECREMENT: {
+ ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode);
+ set_value_for_expression(value, new_value);
+ return value_node;
+ }
+ case EXPR_UNARY_PREFIX_INCREMENT: {
+ ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode);
+ set_value_for_expression(value, new_value);
+ return new_value;
+ }
+ case EXPR_UNARY_PREFIX_DECREMENT: {
+ ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode);
+ set_value_for_expression(value, new_value);
+ return new_value;
+ }
+ default:
+ panic("no incdec expr in create_incdec");
+ return NULL;
+ }
+}
+
static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- type_t *type = expression->expression.datatype;
+ type_t *type = skip_typeref(expression->expression.datatype);
ir_mode *mode = get_ir_mode(type);
- if(expression->type == UNEXPR_TAKE_ADDRESS)
+ if(expression->expression.type == EXPR_UNARY_TAKE_ADDRESS)
return expression_to_addr(expression->value);
const expression_t *value = expression->value;
ir_node *value_node = expression_to_firm(value);
- switch(expression->type) {
- case UNEXPR_NEGATE:
+ switch(expression->expression.type) {
+ case EXPR_UNARY_NEGATE:
return new_d_Minus(dbgi, value_node, mode);
- case UNEXPR_PLUS:
+ case EXPR_UNARY_PLUS:
return value_node;
- case UNEXPR_BITWISE_NEGATE:
+ case EXPR_UNARY_BITWISE_NEGATE:
return new_d_Not(dbgi, value_node, mode);
- case UNEXPR_NOT:
+ case EXPR_UNARY_NOT: {
if(get_irn_mode(value_node) != mode_b) {
value_node = create_conv(dbgi, value_node, mode_b);
}
value_node = create_conv(dbgi, value_node, mode);
}
return value_node;
- case UNEXPR_DEREFERENCE:
- return load_from_expression_addr(type, value_node, dbgi);
- case UNEXPR_POSTFIX_INCREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Add(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return value_node;
- }
- case UNEXPR_POSTFIX_DECREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Sub(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return value_node;
- }
- case UNEXPR_PREFIX_INCREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Add(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return new_value;
- }
- case UNEXPR_PREFIX_DECREMENT: {
- ir_node *one = new_Const(mode, get_mode_one(mode));
- ir_node *new_value = new_d_Sub(dbgi, value_node, one, mode);
- set_value_for_expression(value, new_value);
- return new_value;
}
- case UNEXPR_CAST:
- return create_conv(dbgi, value_node, mode);
+ case EXPR_UNARY_DEREFERENCE: {
+ type_t *value_type = skip_typeref(value->base.datatype);
+ ir_type *irtype = get_ir_type(value_type);
+ assert(is_Pointer_type(irtype));
+ ir_type *points_to = get_pointer_points_to_type(irtype);
+ return deref_address(points_to, value_node, dbgi);
+ }
+ case EXPR_UNARY_POSTFIX_INCREMENT:
+ case EXPR_UNARY_POSTFIX_DECREMENT:
+ case EXPR_UNARY_PREFIX_INCREMENT:
+ case EXPR_UNARY_PREFIX_DECREMENT:
+ return create_incdec(expression);
+ case EXPR_UNARY_CAST: {
+ ir_node *node = create_conv(dbgi, value_node, get_ir_mode(type));
+ node = do_strict_conv(dbgi, node);
+ return node;
+ }
+ case EXPR_UNARY_CAST_IMPLICIT:
+ return create_conv(dbgi, value_node, get_ir_mode(type));
- case UNEXPR_TAKE_ADDRESS:
- case UNEXPR_INVALID:
+ default:
break;
}
panic("invalid UNEXPR type found");
}
-static long get_pnc(binary_expression_type_t type)
+static long get_pnc(const expression_type_t type)
{
switch(type) {
- case BINEXPR_EQUAL: return pn_Cmp_Eq;
- case BINEXPR_NOTEQUAL: return pn_Cmp_Lg;
- case BINEXPR_LESS: return pn_Cmp_Lt;
- case BINEXPR_LESSEQUAL: return pn_Cmp_Le;
- case BINEXPR_GREATER: return pn_Cmp_Gt;
- case BINEXPR_GREATEREQUAL: return pn_Cmp_Ge;
+ case EXPR_BINARY_EQUAL: return pn_Cmp_Eq;
+ case EXPR_BINARY_ISLESSGREATER: return pn_Cmp_Lg;
+ case EXPR_BINARY_NOTEQUAL: return pn_Cmp_Ne;
+ case EXPR_BINARY_ISLESS:
+ case EXPR_BINARY_LESS: return pn_Cmp_Lt;
+ case EXPR_BINARY_ISLESSEQUAL:
+ case EXPR_BINARY_LESSEQUAL: return pn_Cmp_Le;
+ case EXPR_BINARY_ISGREATER:
+ case EXPR_BINARY_GREATER: return pn_Cmp_Gt;
+ case EXPR_BINARY_ISGREATEREQUAL:
+ case EXPR_BINARY_GREATEREQUAL: return pn_Cmp_Ge;
+ case EXPR_BINARY_ISUNORDERED: return pn_Cmp_Uo;
+
default:
break;
}
static ir_node *create_lazy_op(const binary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *type = expression->expression.datatype;
+ ir_mode *mode = get_ir_mode(type);
- bool is_or = (expression->type == BINEXPR_LOGICAL_OR);
- assert(is_or || expression->type == BINEXPR_LOGICAL_AND);
-
- ir_node *val1 = expression_to_modeb(expression->left);
- ir_node *cond = new_d_Cond(dbgi, val1);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
-
- ir_node *fallthrough_block = new_immBlock();
-
- /* the true case */
- ir_node *calc_val2_block = new_immBlock();
- if(is_or) {
- add_immBlock_pred(calc_val2_block, false_proj);
- } else {
- add_immBlock_pred(calc_val2_block, true_proj);
- }
+ ir_node *cur_block = get_cur_block();
- mature_immBlock(calc_val2_block);
+ ir_node *one_block = new_immBlock();
+ ir_node *one = new_Const(mode, get_mode_one(mode));
+ ir_node *jmp_one = new_d_Jmp(dbgi);
- ir_node *val2 = expression_to_modeb(expression->right);
- if(get_cur_block() != NULL) {
- ir_node *jmp = new_d_Jmp(dbgi);
- add_immBlock_pred(fallthrough_block, jmp);
- }
+ ir_node *zero_block = new_immBlock();
+ ir_node *zero = new_Const(mode, get_mode_null(mode));
+ ir_node *jmp_zero = new_d_Jmp(dbgi);
- /* fallthrough */
- ir_node *constb;
- if(is_or) {
- constb = new_d_Const(dbgi, mode_b, get_tarval_b_true());
- add_immBlock_pred(fallthrough_block, true_proj);
- } else {
- constb = new_d_Const(dbgi, mode_b, get_tarval_b_false());
- add_immBlock_pred(fallthrough_block, false_proj);
- }
- mature_immBlock(fallthrough_block);
+ set_cur_block(cur_block);
+ create_condition_evaluation((const expression_t*) expression,
+ one_block, zero_block);
+ mature_immBlock(one_block);
+ mature_immBlock(zero_block);
- set_cur_block(fallthrough_block);
+ ir_node *common_block = new_immBlock();
+ add_immBlock_pred(common_block, jmp_one);
+ add_immBlock_pred(common_block, jmp_zero);
+ mature_immBlock(common_block);
- ir_node *in[2] = { val2, constb };
- ir_node *val = new_d_Phi(dbgi, 2, in, mode_b);
+ ir_node *in[2] = { one, zero };
+ ir_node *val = new_d_Phi(dbgi, 2, in, mode);
return val;
}
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->right->datatype;
- /* be careful with the modes, because in asithmetic assign nodes only
- * the right operand has the mode of the arithmetic alread */
+ type_t *type = expression->right->base.datatype;
+ /* be careful with the modes, because in arithmetic assign nodes only
+ * the right operand has the mode of the arithmetic already */
ir_mode *mode = get_ir_mode(type);
left = create_conv(dbgi, left, mode);
ir_node *res = func(dbgi, left, right, mode);
return res;
}
+static ir_node *pointer_arithmetic(ir_node *const pointer,
+ ir_node * integer,
+ type_t *const type,
+ dbg_info *const dbgi,
+ const create_arithmetic_func func)
+{
+ pointer_type_t *const pointer_type = (pointer_type_t*)type;
+ type_t *const points_to = pointer_type->points_to;
+ const unsigned elem_size = get_type_size(points_to);
+
+ assert(elem_size >= 1);
+ if (elem_size > 1) {
+ integer = create_conv(dbgi, integer, mode_Is);
+ ir_node *const cnst = new_Const_long(mode_Is, (long)elem_size);
+ ir_node *const mul = new_d_Mul(dbgi, integer, cnst, mode_Is);
+ integer = mul;
+ }
+
+ ir_mode *const mode = get_ir_mode(type);
+ return func(dbgi, pointer, integer, mode);
+}
+
static ir_node *create_arithmetic_assign_binop(
const binary_expression_t *expression, create_arithmetic_func func)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- ir_node *value = create_arithmetic_binop(expression, func);
- type_t *type = expression->expression.datatype;
- ir_mode *mode = get_ir_mode(type);
+ dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *const type = skip_typeref(expression->expression.datatype);
+ ir_node *value;
- assert(type->type != TYPE_POINTER);
+ if (is_type_pointer(type)) {
+ ir_node *const pointer = expression_to_firm(expression->left);
+ ir_node * integer = expression_to_firm(expression->right);
+ value = pointer_arithmetic(pointer, integer, type, dbgi, func);
+ } else {
+ value = create_arithmetic_binop(expression, func);
+ }
+ ir_mode *const mode = get_ir_mode(type);
value = create_conv(dbgi, value, mode);
set_value_for_expression(expression->left, value);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
type_t *type = expression->expression.datatype;
- ir_mode *mode = get_ir_mode(type);
expression_t *expr_left = expression->left;
expression_t *expr_right = expression->right;
- type_t *type_left = skip_typeref(expr_left->datatype);
- type_t *type_right = skip_typeref(expr_right->datatype);
+ type_t *type_left = skip_typeref(expr_left->base.datatype);
+ type_t *type_right = skip_typeref(expr_right->base.datatype);
if(is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) {
+ ir_mode *const mode = get_ir_mode(type);
return new_d_Add(dbgi, left, right, mode);
}
- ir_node *pointer;
- ir_node *integer;
- pointer_type_t *pointer_type;
- if(type_left->type == TYPE_POINTER) {
- pointer = left;
- integer = right;
- pointer_type = (pointer_type_t*) type_left;
+ if (is_type_pointer(type_left)) {
+ return pointer_arithmetic(left, right, type, dbgi, new_d_Add);
} else {
- assert(type_right->type == TYPE_POINTER);
- pointer = right;
- integer = left;
- pointer_type = (pointer_type_t*) type_right;
+ assert(is_type_pointer(type_right));
+ return pointer_arithmetic(right, left, type, dbgi, new_d_Add);
}
+}
- type_t *points_to = pointer_type->points_to;
- unsigned elem_size = get_type_size(points_to);
-
- assert(elem_size >= 1);
- if(elem_size > 1) {
- integer = create_conv(dbgi, integer, mode_Is);
- ir_node *cnst = new_Const_long(mode_Is, (int) elem_size);
- ir_node *mul = new_d_Mul(dbgi, integer, cnst, mode_Is);
- integer = mul;
+static ir_node *create_sub(const binary_expression_t *expression)
+{
+ dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ expression_t *const expr_left = expression->left;
+ expression_t *const expr_right = expression->right;
+ ir_node *const left = expression_to_firm(expr_left);
+ ir_node *const right = expression_to_firm(expr_right);
+ type_t *const type = expression->expression.datatype;
+ type_t *const type_left = skip_typeref(expr_left->base.datatype);
+ type_t *const type_right = skip_typeref(expr_right->base.datatype);
+
+ if (is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) {
+ ir_mode *const mode = get_ir_mode(type);
+ return new_d_Sub(dbgi, left, right, mode);
+ } else if (is_type_pointer(type_left) && is_type_pointer(type_right)) {
+ const pointer_type_t *const ptr_type = &type_left->pointer;
+ const unsigned elem_size = get_type_size(ptr_type->points_to);
+ ir_mode *const mode = get_ir_mode(type);
+ ir_node *const sub = new_d_Sub(dbgi, left, right, mode);
+ ir_node *const cnst = new_Const_long(mode_Is, (long)elem_size);
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const div = new_d_Div(dbgi, no_mem, sub, cnst, mode,
+ op_pin_state_floats);
+ return new_d_Proj(dbgi, div, mode, pn_Div_res);
}
- ir_node *res = new_d_Add(dbgi, pointer, integer, mode);
-
- return res;
+ assert(is_type_pointer(type_left));
+ return pointer_arithmetic(left, right, type_left, dbgi, new_d_Sub);
}
-static ir_node *create_sub(const binary_expression_t *expression)
+static ir_node *create_shift(const binary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *left = expression_to_firm(expression->left);
type_t *type = expression->expression.datatype;
ir_mode *mode = get_ir_mode(type);
- expression_t *expr_left = expression->left;
- expression_t *expr_right = expression->right;
- type_t *type_left = skip_typeref(expr_left->datatype);
- type_t *type_right = skip_typeref(expr_right->datatype);
-
- if((is_type_arithmetic(type_left) && is_type_arithmetic(type_right))
- || (type_left->type == TYPE_POINTER
- && type_right->type == TYPE_POINTER)) {
- return new_d_Sub(dbgi, left, right, mode);
- }
-
- assert(type_right->type == TYPE_POINTER);
- ir_node *pointer = left;
- ir_node *integer = right;
- pointer_type_t *pointer_type = (pointer_type_t*) type_right;
+ /* firm always wants the shift count to be unsigned */
+ right = create_conv(dbgi, right, mode_Iu);
- type_t *points_to = pointer_type->points_to;
- unsigned elem_size = get_type_size(points_to);
+ ir_node *res;
- assert(elem_size >= 1);
- if(elem_size > 1) {
- ir_node *cnst = new_Const_long(mode_Iu, elem_size);
- ir_node *mul = new_d_Mul(dbgi, integer, cnst, mode_Iu);
- integer = mul;
+ switch(expression->expression.type) {
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+ case EXPR_BINARY_SHIFTLEFT:
+ res = new_d_Shl(dbgi, left, right, mode);
+ break;
+ case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
+ case EXPR_BINARY_SHIFTRIGHT: {
+ expression_t *expr_left = expression->left;
+ type_t *type_left = skip_typeref(expr_left->base.datatype);
+
+ if(is_type_signed(type_left)) {
+ res = new_d_Shrs(dbgi, left, right, mode);
+ } else {
+ res = new_d_Shr(dbgi, left, right, mode);
+ }
+ break;
+ }
+ default:
+ panic("create shift op called for non-shift op");
}
-
- ir_node *res = new_d_Sub(dbgi, pointer, integer, mode);
return res;
}
+
static ir_node *create_divmod(const binary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
ir_node *pin = new_Pin(new_NoMem());
- type_t *type = expression->expression.datatype;
+ /* be careful with the modes, because in arithmetic assign nodes only
+ * the right operand has the mode of the arithmetic already */
+ type_t *type = expression->right->base.datatype;
ir_mode *mode = get_ir_mode(type);
+ left = create_conv(dbgi, left, mode);
ir_node *op;
ir_node *res;
- if(expression->type == BINEXPR_DIV) {
+ switch (expression->expression.type) {
+ case EXPR_BINARY_DIV:
+ case EXPR_BINARY_DIV_ASSIGN:
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);
op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats);
res = new_d_Proj(dbgi, op, mode, pn_Div_res);
}
- } else {
- assert(expression->type == BINEXPR_MOD);
+ break;
+
+ case EXPR_BINARY_MOD:
+ case EXPR_BINARY_MOD_ASSIGN:
assert(!mode_is_float(mode));
op = new_d_Mod(dbgi, pin, left, right, mode, op_pin_state_floats);
res = new_d_Proj(dbgi, op, mode, pn_Mod_res);
+ break;
+
+ default: panic("unexpected binary expression type in create_divmod()");
}
return res;
}
+static ir_node *create_arithmetic_assign_divmod(
+ const binary_expression_t *expression)
+{
+ ir_node * value = create_divmod(expression);
+ dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *const type = expression->expression.datatype;
+ ir_mode *const mode = get_ir_mode(type);
+
+ assert(type->type != TYPE_POINTER);
+
+ value = create_conv(dbgi, value, mode);
+ set_value_for_expression(expression->left, value);
+
+ return value;
+}
+
+static ir_node *create_arithmetic_assign_shift(
+ const binary_expression_t *expression)
+{
+ ir_node * value = create_shift(expression);
+ dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ type_t *const type = expression->expression.datatype;
+ ir_mode *const mode = get_ir_mode(type);
+
+ value = create_conv(dbgi, value, mode);
+ set_value_for_expression(expression->left, value);
+ return value;
+}
static ir_node *binary_expression_to_firm(const binary_expression_t *expression)
{
- binary_expression_type_t type = expression->type;
+ expression_type_t type = expression->expression.type;
+
switch(type) {
- case BINEXPR_EQUAL:
- case BINEXPR_NOTEQUAL:
- case BINEXPR_LESS:
- case BINEXPR_LESSEQUAL:
- case BINEXPR_GREATER:
- case BINEXPR_GREATEREQUAL: {
+ case EXPR_BINARY_EQUAL:
+ case EXPR_BINARY_NOTEQUAL:
+ case EXPR_BINARY_LESS:
+ case EXPR_BINARY_LESSEQUAL:
+ case EXPR_BINARY_GREATER:
+ case EXPR_BINARY_GREATEREQUAL:
+ case EXPR_BINARY_ISGREATER:
+ case EXPR_BINARY_ISGREATEREQUAL:
+ case EXPR_BINARY_ISLESS:
+ case EXPR_BINARY_ISLESSEQUAL:
+ case EXPR_BINARY_ISLESSGREATER:
+ case EXPR_BINARY_ISUNORDERED: {
dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pnc);
return proj;
}
- case BINEXPR_ASSIGN: {
+ case EXPR_BINARY_ASSIGN: {
ir_node *right = expression_to_firm(expression->right);
set_value_for_expression(expression->left, right);
+
return right;
}
- case BINEXPR_ADD:
+ case EXPR_BINARY_ADD:
return create_add(expression);
- case BINEXPR_SUB:
+ case EXPR_BINARY_SUB:
return create_sub(expression);
- case BINEXPR_MUL:
+ case EXPR_BINARY_MUL:
return create_arithmetic_binop(expression, new_d_Mul);
- case BINEXPR_BITWISE_AND:
+ case EXPR_BINARY_BITWISE_AND:
return create_arithmetic_binop(expression, new_d_And);
- case BINEXPR_BITWISE_OR:
+ case EXPR_BINARY_BITWISE_OR:
return create_arithmetic_binop(expression, new_d_Or);
- case BINEXPR_BITWISE_XOR:
+ case EXPR_BINARY_BITWISE_XOR:
return create_arithmetic_binop(expression, new_d_Eor);
- case BINEXPR_SHIFTLEFT:
- return create_arithmetic_binop(expression, new_d_Shl);
- case BINEXPR_SHIFTRIGHT:
- return create_arithmetic_binop(expression, new_d_Shr);
- case BINEXPR_DIV:
- case BINEXPR_MOD:
+ case EXPR_BINARY_SHIFTLEFT:
+ case EXPR_BINARY_SHIFTRIGHT:
+ return create_shift(expression);
+ case EXPR_BINARY_DIV:
+ case EXPR_BINARY_MOD:
return create_divmod(expression);
- case BINEXPR_LOGICAL_AND:
- case BINEXPR_LOGICAL_OR:
+ case EXPR_BINARY_LOGICAL_AND:
+ case EXPR_BINARY_LOGICAL_OR:
return create_lazy_op(expression);
- case BINEXPR_COMMA:
+ case EXPR_BINARY_COMMA:
expression_to_firm(expression->left);
return expression_to_firm(expression->right);
- case BINEXPR_ADD_ASSIGN:
+ case EXPR_BINARY_ADD_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_Add);
- case BINEXPR_SUB_ASSIGN:
+ case EXPR_BINARY_SUB_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_Sub);
- case BINEXPR_MUL_ASSIGN:
+ case EXPR_BINARY_MUL_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_Mul);
- case BINEXPR_BITWISE_AND_ASSIGN:
+ case EXPR_BINARY_DIV_ASSIGN:
+ return create_arithmetic_assign_divmod(expression);
+ case EXPR_BINARY_BITWISE_AND_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_And);
- case BINEXPR_BITWISE_OR_ASSIGN:
+ case EXPR_BINARY_BITWISE_OR_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_Or);
- case BINEXPR_BITWISE_XOR_ASSIGN:
+ case EXPR_BINARY_BITWISE_XOR_ASSIGN:
return create_arithmetic_assign_binop(expression, new_d_Eor);
- case BINEXPR_SHIFTLEFT_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Shl);
- case BINEXPR_SHIFTRIGHT_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Shr);
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+ case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
+ return create_arithmetic_assign_shift(expression);
default:
panic("TODO binexpr type");
}
static ir_node *array_access_addr(const array_access_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ ir_node *base_addr = expression_to_firm(expression->array_ref);
+ ir_node *offset = expression_to_firm(expression->index);
+ offset = create_conv(dbgi, offset, mode_Iu);
- ir_node *base_addr = expression_to_firm(expression->array_ref);
- ir_node *offset = expression_to_firm(expression->index);
- offset = create_conv(dbgi, offset, mode_Iu);
+ type_t *ref_type = skip_typeref(expression->array_ref->base.datatype);
+ assert(is_type_pointer(ref_type));
+ pointer_type_t *pointer_type = (pointer_type_t*) ref_type;
- unsigned elem_size = get_type_size(expression->expression.datatype);
+ unsigned elem_size = get_type_size(pointer_type->points_to);
ir_node *elem_size_const = new_Const_long(mode_Iu, elem_size);
ir_node *real_offset = new_d_Mul(dbgi, offset, elem_size_const,
mode_Iu);
static ir_node *array_access_to_firm(
const array_access_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- ir_node *addr = array_access_addr(expression);
- type_t *type = expression->expression.datatype;
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ ir_node *addr = array_access_addr(expression);
+ type_t *type = revert_automatic_type_conversion(
+ (const expression_t*) expression);
+ type = skip_typeref(type);
+ ir_type *irtype = get_ir_type(type);
- return load_from_expression_addr(type, addr, dbgi);
+ return deref_address(irtype, addr, dbgi);
}
static ir_node *sizeof_to_firm(const sizeof_expression_t *expression)
{
type_t *type = expression->type;
if(type == NULL) {
- type = expression->size_expression->datatype;
+ type = expression->size_expression->base.datatype;
assert(type != NULL);
}
return size_node;
}
-static ir_node *conditional_to_firm(const conditional_expression_t *expression)
+static tarval *try_fold_constant(const expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ ir_graph *old_current_ir_graph = current_ir_graph;
+ if(current_ir_graph == NULL) {
+ current_ir_graph = get_const_code_irg();
+ }
- ir_node *condition = expression_to_modeb(expression->condition);
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
+ ir_node *cnst = expression_to_firm(expression);
+ current_ir_graph = old_current_ir_graph;
- /* create the true block */
- ir_node *true_block = new_immBlock();
- add_immBlock_pred(true_block, true_proj);
- mature_immBlock(true_block);
+ if(!is_Const(cnst)) {
+ return NULL;
+ }
+
+ tarval *tv = get_Const_tarval(cnst);
+ if(!tarval_is_long(tv)) {
+ return NULL;
+ }
+
+ return tv;
+}
+
+static long fold_constant(const expression_t *expression)
+{
+ tarval *tv = try_fold_constant(expression);
+ if(tv == NULL) {
+ panic("couldn't fold constantl");
+ }
+
+ return get_tarval_long(tv);
+}
+
+static ir_node *conditional_to_firm(const conditional_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+
+ /* first try to fold a constant condition */
+ tarval *tv = try_fold_constant(expression->condition);
+ if(tv != NULL) {
+ long val = get_tarval_long(tv);
+ if(val) {
+ return expression_to_firm(expression->true_expression);
+ } else {
+ return expression_to_firm(expression->false_expression);
+ }
+ }
+
+ ir_node *cur_block = get_cur_block();
+
+ /* create the true block */
+ ir_node *true_block = new_immBlock();
ir_node *true_val = expression_to_firm(expression->true_expression);
ir_node *true_jmp = new_Jmp();
/* create the false block */
ir_node *false_block = new_immBlock();
- add_immBlock_pred(false_block, false_proj);
- mature_immBlock(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);
+ create_condition_evaluation(expression->condition, true_block, false_block);
+ mature_immBlock(true_block);
+ mature_immBlock(false_block);
+
/* create the common block */
ir_node *common_block = new_immBlock();
add_immBlock_pred(common_block, true_jmp);
add_immBlock_pred(common_block, false_jmp);
mature_immBlock(common_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);
return val;
}
+static ir_node *select_addr(const select_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+
+ ir_node *compound_addr = expression_to_firm(expression->compound);
+
+ declaration_t *entry = expression->compound_entry;
+ assert(entry->declaration_type == DECLARATION_TYPE_COMPOUND_MEMBER);
+ ir_entity *entity = entry->v.entity;
+
+ assert(entity != NULL);
+
+ ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), compound_addr, entity);
+
+ return sel;
+}
+
+static ir_node *select_to_firm(const select_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ ir_node *addr = select_addr(expression);
+ type_t *type = revert_automatic_type_conversion(
+ (const expression_t*) expression);
+ type = skip_typeref(type);
+ ir_type *irtype = get_ir_type(type);
+
+ return deref_address(irtype, addr, dbgi);
+}
+
+/* Values returned by __builtin_classify_type. */
+typedef enum gcc_type_class
+{
+ no_type_class = -1,
+ void_type_class,
+ integer_type_class,
+ char_type_class,
+ enumeral_type_class,
+ boolean_type_class,
+ pointer_type_class,
+ reference_type_class,
+ offset_type_class,
+ real_type_class,
+ complex_type_class,
+ function_type_class,
+ method_type_class,
+ record_type_class,
+ union_type_class,
+ array_type_class,
+ string_type_class,
+ set_type_class,
+ file_type_class,
+ lang_type_class
+} gcc_type_class;
+
+static ir_node *classify_type_to_firm(const classify_type_expression_t *const expr)
+{
+ const type_t *const type = expr->type_expression->base.datatype;
+
+ gcc_type_class tc;
+ switch (type->type)
+ {
+ case TYPE_ATOMIC: {
+ const atomic_type_t *const atomic_type = &type->atomic;
+ switch (atomic_type->atype) {
+ // should not be reached
+ case ATOMIC_TYPE_INVALID:
+ tc = no_type_class;
+ break;
+
+ // gcc cannot do that
+ case ATOMIC_TYPE_VOID:
+ tc = void_type_class;
+ break;
+
+ case ATOMIC_TYPE_CHAR: // gcc handles this as integer
+ case ATOMIC_TYPE_SCHAR: // gcc handles this as integer
+ case ATOMIC_TYPE_UCHAR: // gcc handles this as integer
+ case ATOMIC_TYPE_SHORT:
+ case ATOMIC_TYPE_USHORT:
+ case ATOMIC_TYPE_INT:
+ case ATOMIC_TYPE_UINT:
+ case ATOMIC_TYPE_LONG:
+ case ATOMIC_TYPE_ULONG:
+ case ATOMIC_TYPE_LONGLONG:
+ case ATOMIC_TYPE_ULONGLONG:
+ case ATOMIC_TYPE_BOOL: // gcc handles this as integer
+ tc = integer_type_class;
+ break;
+
+ case ATOMIC_TYPE_FLOAT:
+ case ATOMIC_TYPE_DOUBLE:
+ case ATOMIC_TYPE_LONG_DOUBLE:
+ tc = real_type_class;
+ break;
+
+#ifdef PROVIDE_COMPLEX
+ case ATOMIC_TYPE_FLOAT_COMPLEX:
+ case ATOMIC_TYPE_DOUBLE_COMPLEX:
+ case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
+ tc = complex_type_class;
+ break;
+ case ATOMIC_TYPE_FLOAT_IMAGINARY:
+ case ATOMIC_TYPE_DOUBLE_IMAGINARY:
+ case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
+ tc = complex_type_class;
+ break;
+#endif
+
+ default:
+ panic("Unimplemented case in classify_type_to_firm().");
+ }
+ break;
+ }
+
+ case TYPE_ARRAY: // gcc handles this as pointer
+ case TYPE_FUNCTION: // gcc handles this as pointer
+ case TYPE_POINTER: tc = pointer_type_class; break;
+ case TYPE_COMPOUND_STRUCT: tc = record_type_class; break;
+ case TYPE_COMPOUND_UNION: tc = union_type_class; break;
+
+ // gcc handles this as integer
+ case TYPE_ENUM: tc = integer_type_class; break;
+
+ default:
+ panic("Unimplemented case in classify_type_to_firm().");
+ }
+
+ dbg_info *const dbgi = get_dbg_info(&expr->expression.source_position);
+ ir_mode *const mode = mode_Is;
+ tarval *const tv = new_tarval_from_long(tc, mode);
+ return new_d_Const(dbgi, mode, tv);
+}
+
+static ir_node *function_name_to_firm(
+ const string_literal_expression_t *const expr)
+{
+ if (current_function_name == NULL) {
+ const source_position_t *const src_pos =
+ &expr->expression.source_position;
+ const char *const name = current_function_decl->symbol->string;
+ current_function_name = string_to_firm(src_pos, "__func__", name);
+ }
+
+ return current_function_name;
+}
+
+static ir_node *statement_expression_to_firm(const statement_expression_t *expr)
+{
+ statement_t *statement = expr->statement;
+
+ assert(statement->type == STATEMENT_COMPOUND);
+ return compound_statement_to_firm((compound_statement_t*) statement);
+}
+
+static ir_node *va_start_expression_to_firm(
+ const va_start_expression_t *const expr)
+{
+ ir_type *const method_type = get_ir_type(current_function_decl->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 arg_base = get_irg_value_param_base(current_ir_graph);
+ dbg_info *const dbgi =
+ get_dbg_info(&expr->expression.source_position);
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const arg_sel =
+ new_d_simpleSel(dbgi, no_mem, arg_base, parm_ent);
+
+ size_t const parm_size = get_type_size(expr->parameter->type);
+ ir_node *const cnst = new_Const_long(mode_Iu, parm_size);
+ ir_node *const add = new_d_Add(dbgi, arg_sel, cnst, mode_P_data);
+ set_value_for_expression(expr->ap, add);
+
+ return NULL;
+}
+
+static ir_node *va_arg_expression_to_firm(const va_arg_expression_t *const expr)
+{
+ ir_type *const irtype = get_ir_type(expr->expression.datatype);
+ ir_node *const ap = expression_to_firm(expr->ap);
+ dbg_info *const dbgi = get_dbg_info(&expr->expression.source_position);
+ ir_node *const res = deref_address(irtype, ap, dbgi);
+
+ size_t const parm_size = get_type_size(expr->expression.datatype);
+ ir_node *const cnst = new_Const_long(mode_Iu, parm_size);
+ ir_node *const add = new_d_Add(dbgi, ap, cnst, mode_P_data);
+ set_value_for_expression(expr->ap, add);
+
+ return res;
+}
+
+static ir_node *dereference_addr(const unary_expression_t *const expression)
+{
+ assert(expression->expression.type == EXPR_UNARY_DEREFERENCE);
+ return expression_to_firm(expression->value);
+}
+
static ir_node *expression_to_addr(const expression_t *expression)
{
switch(expression->type) {
case EXPR_REFERENCE:
- return reference_addr((const reference_expression_t*) expression);
+ return reference_addr(&expression->reference);
case EXPR_ARRAY_ACCESS:
- return array_access_addr((const array_access_expression_t*) expression);
+ return array_access_addr(&expression->array_access);
+ case EXPR_SELECT:
+ return select_addr(&expression->select);
+ case EXPR_CALL:
+ return call_expression_to_firm(&expression->call);
+ case EXPR_UNARY_DEREFERENCE: {
+ return dereference_addr(&expression->unary);
+ }
default:
break;
}
{
switch(expression->type) {
case EXPR_CONST:
- return const_to_firm((const const_t*) expression);
+ return const_to_firm(&expression->conste);
case EXPR_STRING_LITERAL:
- return string_literal_to_firm((const string_literal_t*) expression);
+ return string_literal_to_firm(&expression->string);
+ case EXPR_WIDE_STRING_LITERAL:
+ return wide_string_literal_to_firm(&expression->wide_string);
case EXPR_REFERENCE:
- return reference_expression_to_firm(
- (const reference_expression_t*) expression);
+ return reference_expression_to_firm(&expression->reference);
case EXPR_CALL:
- return call_expression_to_firm((const call_expression_t*) expression);
- case EXPR_UNARY:
- return unary_expression_to_firm((const unary_expression_t*) expression);
- case EXPR_BINARY:
- return binary_expression_to_firm(
- (const binary_expression_t*) expression);
+ return call_expression_to_firm(&expression->call);
+ EXPR_UNARY_CASES
+ return unary_expression_to_firm(&expression->unary);
+ EXPR_BINARY_CASES
+ return binary_expression_to_firm(&expression->binary);
case EXPR_ARRAY_ACCESS:
- return array_access_to_firm(
- (const array_access_expression_t*) expression);
+ return array_access_to_firm(&expression->array_access);
case EXPR_SIZEOF:
- return sizeof_to_firm((const sizeof_expression_t*) expression);
+ return sizeof_to_firm(&expression->sizeofe);
case EXPR_CONDITIONAL:
- return conditional_to_firm((const conditional_expression_t*)expression);
- default:
+ return conditional_to_firm(&expression->conditional);
+ case EXPR_SELECT:
+ return select_to_firm(&expression->select);
+ case EXPR_CLASSIFY_TYPE:
+ return classify_type_to_firm(&expression->classify_type);
+ case EXPR_FUNCTION:
+ case EXPR_PRETTY_FUNCTION:
+ return function_name_to_firm(&expression->string);
+ case EXPR_STATEMENT:
+ return statement_expression_to_firm(&expression->statement);
+ case EXPR_VA_START:
+ 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_UNKNOWN:
+ case EXPR_INVALID:
break;
}
- panic("unsupported expression found");
+ panic("invalid expression found");
}
static ir_node *expression_to_firm(const expression_t *expression)
{
- ir_node *res = _expression_to_firm(expression);
+ ir_node *res = _expression_to_firm(expression);
- if(expression->datatype == type_void)
- return NULL;
+ if(res != NULL && get_irn_mode(res) == mode_b) {
+ ir_mode *mode = get_ir_mode(expression->base.datatype);
+ res = create_conv(NULL, res, mode);
+ }
- ir_mode *mode = get_ir_mode(expression->datatype);
- res = create_conv(NULL, res, mode);
return res;
}
return res;
}
-static void statement_to_firm(statement_t *statement);
+/**
+ * create a short-circuit expression evaluation that tries to construct
+ * efficient control flow structures for &&, || and ! expressions
+ */
+static void create_condition_evaluation(const expression_t *expression,
+ ir_node *true_block,
+ ir_node *false_block)
+{
+ switch(expression->type) {
+ case EXPR_UNARY_NOT: {
+ const unary_expression_t *unary_expression = &expression->unary;
+ create_condition_evaluation(unary_expression->value, false_block,
+ true_block);
+ return;
+ }
+ case EXPR_BINARY_LOGICAL_AND: {
+ const binary_expression_t *binary_expression = &expression->binary;
+
+ ir_node *cur_block = get_cur_block();
+ ir_node *extra_block = new_immBlock();
+ set_cur_block(cur_block);
+ create_condition_evaluation(binary_expression->left, extra_block,
+ false_block);
+ mature_immBlock(extra_block);
+ set_cur_block(extra_block);
+ create_condition_evaluation(binary_expression->right, true_block,
+ false_block);
+ return;
+ }
+ case EXPR_BINARY_LOGICAL_OR: {
+ const binary_expression_t *binary_expression = &expression->binary;
+
+ ir_node *cur_block = get_cur_block();
+ ir_node *extra_block = new_immBlock();
+ set_cur_block(cur_block);
+ create_condition_evaluation(binary_expression->left, true_block,
+ extra_block);
+ mature_immBlock(extra_block);
+ set_cur_block(extra_block);
+ create_condition_evaluation(binary_expression->right, true_block,
+ false_block);
+ return;
+ }
+ default:
+ break;
+ }
+
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_node *condition = expression_to_modeb(expression);
+ ir_node *cond = new_d_Cond(dbgi, condition);
+ ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
+ ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
+
+ add_immBlock_pred(true_block, true_proj);
+ add_immBlock_pred(false_block, false_proj);
+
+ set_cur_block(NULL);
+}
+
+
+
+static void create_declaration_entity(declaration_t *declaration,
+ declaration_type_t declaration_type,
+ ir_type *parent_type)
+{
+ ident *id = new_id_from_str(declaration->symbol->string);
+ ir_type *irtype = get_ir_type(declaration->type);
+ ir_entity *entity = new_entity(parent_type, id, irtype);
+ set_entity_ld_ident(entity, id);
+
+ declaration->declaration_type = (unsigned char) declaration_type;
+ declaration->v.entity = entity;
+ set_entity_variability(entity, variability_uninitialized);
+ if(parent_type == get_tls_type())
+ set_entity_allocation(entity, allocation_automatic);
+ else if(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE)
+ set_entity_allocation(entity, allocation_static);
+ /* TODO: visibility? */
+}
+
+typedef struct compound_graph_path_entry_t compound_graph_path_entry_t;
+
+enum compound_graph_entry_type_t {
+ COMPOUND_GRAPH_ENTRY_ARRAY,
+ COMPOUND_GRAPH_ENTRY_COMPOUND
+};
+
+struct compound_graph_path_entry_t {
+ int type;
+ union {
+ ir_entity *entity;
+ int array_index;
+ } v;
+ compound_graph_path_entry_t *prev;
+};
+
+static void create_initializer_object(initializer_t *initializer, type_t *type,
+ ir_entity *entity, compound_graph_path_entry_t *entry, int len);
+
+static compound_graph_path *create_compound_path(ir_type *type,
+ compound_graph_path_entry_t *entry, int len)
+{
+ compound_graph_path *path = new_compound_graph_path(type, len);
+
+ int i = len - 1;
+ for( ; entry != NULL; entry = entry->prev, --i) {
+ assert(i >= 0);
+ if(entry->type == COMPOUND_GRAPH_ENTRY_COMPOUND) {
+ set_compound_graph_path_node(path, i, entry->v.entity);
+ } else {
+ assert(entry->type == COMPOUND_GRAPH_ENTRY_ARRAY);
+ set_compound_graph_path_array_index(path, i, entry->v.array_index);
+ }
+ }
+ assert(i == -1);
+
+ return path;
+}
+
+static void create_initializer_value(initializer_value_t *initializer,
+ ir_entity *entity,
+ compound_graph_path_entry_t *entry,
+ int len)
+{
+ ir_node *node = expression_to_firm(initializer->value);
+ ir_type *type = get_entity_type(entity);
+ compound_graph_path *path = create_compound_path(type, entry, len);
+ add_compound_ent_value_w_path(entity, node, path);
+}
+
+static void create_initializer_compound(initializer_list_t *initializer,
+ compound_type_t *type,
+ ir_entity *entity,
+ compound_graph_path_entry_t *last_entry,
+ int len)
+{
+ declaration_t *compound_declaration = type->declaration;
+
+ declaration_t *compound_entry = compound_declaration->context.declarations;
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_COMPOUND;
+ entry.prev = last_entry;
+ ++len;
+
+ size_t i = 0;
+ for( ; compound_entry != NULL; compound_entry = compound_entry->next) {
+ if(compound_entry->symbol == NULL)
+ continue;
+ if(compound_entry->namespc != NAMESPACE_NORMAL)
+ continue;
+
+ if(i >= initializer->len)
+ break;
+
+ entry.v.entity = compound_entry->v.entity;
+
+ initializer_t *sub_initializer = initializer->initializers[i];
+
+ assert(compound_entry != NULL);
+ assert(compound_entry->declaration_type
+ == DECLARATION_TYPE_COMPOUND_MEMBER);
+
+ if(sub_initializer->type == INITIALIZER_VALUE) {
+ create_initializer_value(&sub_initializer->value,
+ entity, &entry, len);
+ } else {
+ type_t *entry_type = skip_typeref(compound_entry->type);
+ create_initializer_object(sub_initializer, entry_type, entity,
+ &entry, len);
+ }
+
+ ++i;
+ }
+}
+
+static void create_initializer_array(initializer_list_t *initializer,
+ array_type_t *type, ir_entity *entity,
+ compound_graph_path_entry_t *last_entry,
+ int len)
+{
+ type_t *element_type = type->element_type;
+ element_type = skip_typeref(element_type);
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
+
+ size_t i;
+ for(i = 0; i < initializer->len; ++i) {
+ entry.v.array_index = i;
+
+ initializer_t *sub_initializer = initializer->initializers[i];
+
+ if(sub_initializer->type == INITIALIZER_VALUE) {
+ create_initializer_value(&sub_initializer->value,
+ entity, &entry, len);
+ } else {
+ create_initializer_object(sub_initializer, element_type, entity,
+ &entry, len);
+ }
+ }
+
+#if 0
+ /* TODO: initialize rest... */
+ if(type->size_expression != NULL) {
+ size_t array_len = fold_constant(type->size_expression);
+ for( ; i < array_len; ++i) {
+
+ }
+ }
+#endif
+}
+
+static void create_initializer_string(initializer_string_t *initializer,
+ array_type_t *type, ir_entity *entity,
+ compound_graph_path_entry_t *last_entry,
+ int len)
+{
+ type_t *element_type = type->element_type;
+ element_type = skip_typeref(element_type);
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
+
+ ir_type *irtype = get_entity_type(entity);
+ size_t arr_len = get_array_type_size(type);
+ const char *p = initializer->string;
+ size_t i = 0;
+ for(i = 0; i < arr_len; ++i, ++p) {
+ entry.v.array_index = i;
+
+ ir_node *node = new_Const_long(mode_Bs, *p);
+ compound_graph_path *path = create_compound_path(irtype, &entry, len);
+ add_compound_ent_value_w_path(entity, node, path);
+
+ if(*p == '\0')
+ break;
+ }
+}
+
+static void create_initializer_wide_string(
+ const initializer_wide_string_t *const initializer, array_type_t *const type,
+ ir_entity *const entity, compound_graph_path_entry_t *const last_entry,
+ int len)
+{
+ type_t *element_type = type->element_type;
+ element_type = skip_typeref(element_type);
+
+ compound_graph_path_entry_t entry;
+ entry.type = COMPOUND_GRAPH_ENTRY_ARRAY;
+ entry.prev = last_entry;
+ ++len;
+
+ ir_type *const irtype = get_entity_type(entity);
+ const size_t arr_len = get_array_type_size(type);
+ const wchar_rep_t * p = initializer->string.begin;
+ const wchar_rep_t *const end = p + initializer->string.size;
+ for (size_t i = 0; i < arr_len && p != end; ++i, ++p) {
+ entry.v.array_index = i;
+
+ ir_node *node = new_Const_long(mode_Is, *p);
+ compound_graph_path *path = create_compound_path(irtype, &entry, len);
+ add_compound_ent_value_w_path(entity, node, path);
+ }
+}
+
+static void create_initializer_object(initializer_t *initializer, type_t *type,
+ ir_entity *entity, compound_graph_path_entry_t *entry, int len)
+{
+ if(is_type_array(type)) {
+ array_type_t *array_type = &type->array;
+
+ switch (initializer->type) {
+ case INITIALIZER_STRING: {
+ initializer_string_t *const string = &initializer->string;
+ create_initializer_string(string, array_type, entity, entry, len);
+ return;
+ }
+
+ case INITIALIZER_WIDE_STRING: {
+ initializer_wide_string_t *const string = &initializer->wide_string;
+ create_initializer_wide_string(string, array_type, entity, entry, len);
+ return;
+ }
+
+ case INITIALIZER_LIST: {
+ initializer_list_t *const list = &initializer->list;
+ create_initializer_array(list, array_type, entity, entry, len);
+ return;
+ }
+
+ case INITIALIZER_VALUE:
+ break;
+ }
+ panic("Unhandled initializer");
+ } else {
+ assert(initializer->type == INITIALIZER_LIST);
+ initializer_list_t *list = &initializer->list;
+
+ assert(is_type_compound(type));
+ compound_type_t *compound_type = &type->compound;
+ create_initializer_compound(list, compound_type, entity, entry, len);
+ }
+}
+
+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;
+ 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->type == 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);
+ assign_value(dbgi, addr, type, value);
+ return;
+ }
+
+ /* create a "template" entity which is copied to the entity on the stack */
+ ident *id = unique_ident("initializer");
+ ir_type *irtype = get_ir_type(declaration->type);
+ ir_type *global_type = get_glob_type();
+ ir_entity *init_entity = new_entity(global_type, id, irtype);
+ set_entity_ld_ident(init_entity, id);
+
+ set_entity_variability(init_entity, variability_initialized);
+ set_entity_visibility(init_entity, visibility_local);
+ set_entity_allocation(init_entity, allocation_static);
+
+ ir_graph *old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ type_t *type = skip_typeref(declaration->type);
+ create_initializer_object(initializer, type, init_entity, NULL, 0);
+
+ assert(current_ir_graph == get_const_code_irg());
+ current_ir_graph = old_current_ir_graph;
+
+ ir_node *src_addr = create_symconst(dbgi, init_entity);
+ ir_node *copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype);
+
+ ir_node *copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular);
+ set_store(copyb_mem);
+}
+
+static void create_initializer(declaration_t *declaration)
+{
+ initializer_t *initializer = declaration->init.initializer;
+ if(initializer == NULL)
+ return;
+
+ declaration_type_t declaration_type
+ = (declaration_type_t) declaration->declaration_type;
+ if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY) {
+ create_initializer_local_variable_entity(declaration);
+ return;
+ }
+
+ if(initializer->type == INITIALIZER_VALUE) {
+ initializer_value_t *initializer_value = &initializer->value;
+
+ ir_node *value = expression_to_firm(initializer_value->value);
+
+ if(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) {
+ set_value(declaration->v.value_number, value);
+ } else {
+ assert(declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE);
+
+ ir_entity *entity = declaration->v.entity;
+
+ set_entity_variability(entity, variability_initialized);
+ set_atomic_ent_value(entity, value);
+ }
+ } else {
+ assert(declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY
+ || declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE);
+
+ ir_entity *entity = declaration->v.entity;
+ set_entity_variability(entity, variability_initialized);
+
+ type_t *type = skip_typeref(declaration->type);
+ create_initializer_object(initializer, type, entity, NULL, 0);
+ }
+}
+
+static void create_local_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+
+ bool needs_entity = declaration->address_taken;
+ type_t *type = skip_typeref(declaration->type);
+
+ if(is_type_array(type) || is_type_compound(type)) {
+ needs_entity = true;
+ }
+
+ if(needs_entity) {
+ ir_type *frame_type = get_irg_frame_type(current_ir_graph);
+ create_declaration_entity(declaration,
+ DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY,
+ frame_type);
+ } else {
+ declaration->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE;
+ declaration->v.value_number = next_value_number_function;
+ ++next_value_number_function;
+ }
+
+ create_initializer(declaration);
+}
+
+static void create_local_static_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+
+ type_t *type = skip_typeref(declaration->type);
+ ir_type *global_type = get_glob_type();
+ ident *id = unique_ident(declaration->symbol->string);
+ ir_type *irtype = get_ir_type(type);
+ ir_entity *entity = new_entity(global_type, id, irtype);
+ set_entity_ld_ident(entity, id);
+
+ declaration->declaration_type = DECLARATION_TYPE_GLOBAL_VARIABLE;
+ declaration->v.entity = entity;
+ set_entity_variability(entity, variability_uninitialized);
+ set_entity_visibility(entity, visibility_local);
+ set_entity_allocation(entity, allocation_static);
+
+ ir_graph *old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ create_initializer(declaration);
+
+ assert(current_ir_graph == get_const_code_irg());
+ current_ir_graph = old_current_ir_graph;
+}
+
+
static void return_statement_to_firm(return_statement_t *statement)
{
if(get_cur_block() == NULL)
return;
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
- ir_node *ret;
+ ir_type *func_irtype = get_ir_type(current_function_decl->type);
- if(statement->return_value != NULL) {
- ir_node *retval = expression_to_firm(statement->return_value);
- ir_node *in[1];
+ dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
- in[0] = retval;
- ret = new_d_Return(dbgi, get_store(), 1, in);
+ ir_node *in[1];
+ int in_len;
+ if(get_method_n_ress(func_irtype) > 0) {
+ ir_type *res_type = get_method_res_type(func_irtype, 0);
+
+ if(statement->return_value != NULL) {
+ ir_node *node = expression_to_firm(statement->return_value);
+ node = do_strict_conv(dbgi, node);
+ in[0] = node;
+ } else {
+ ir_mode *mode;
+ if(is_compound_type(res_type)) {
+ mode = mode_P_data;
+ } else {
+ mode = get_type_mode(res_type);
+ }
+ in[0] = new_Unknown(mode);
+ }
+ in_len = 1;
} else {
- ret = new_d_Return(dbgi, get_store(), 0, NULL);
+ /* build return_value for its side effects */
+ if(statement->return_value != NULL) {
+ expression_to_firm(statement->return_value);
+ }
+ in_len = 0;
}
+
+ ir_node *store = get_store();
+ ir_node *ret = new_d_Return(dbgi, store, in_len, in);
+
ir_node *end_block = get_irg_end_block(current_ir_graph);
add_immBlock_pred(end_block, ret);
set_cur_block(NULL);
}
-static void compound_statement_to_firm(compound_statement_t *compound)
+static ir_node *expression_statement_to_firm(expression_statement_t *statement)
+{
+ if(get_cur_block() == NULL)
+ return NULL;
+
+ return expression_to_firm(statement->expression);
+}
+
+static ir_node *compound_statement_to_firm(compound_statement_t *compound)
{
+ ir_node *result = NULL;
statement_t *statement = compound->statements;
- for( ; statement != NULL; statement = statement->next) {
+ for( ; statement != NULL; statement = statement->base.next) {
//context2firm(&statement->context);
+
+ if(statement->base.next == NULL
+ && statement->type == STATEMENT_EXPRESSION) {
+ result = expression_statement_to_firm(
+ (expression_statement_t*) statement);
+ break;
+ }
statement_to_firm(statement);
}
+
+ return result;
}
-static void expression_statement_to_firm(expression_statement_t *statement)
+static void create_local_declaration(declaration_t *declaration)
{
- if(get_cur_block() == NULL)
+ type_t *type = skip_typeref(declaration->type);
+
+ switch ((storage_class_tag_t) declaration->storage_class) {
+ 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:
+ panic("extern declaration in local block found");
+ case STORAGE_CLASS_NONE:
+ case STORAGE_CLASS_AUTO:
+ case STORAGE_CLASS_REGISTER:
+ if(is_type_function(type)) {
+ panic("nested functions not supported yet");
+ } else {
+ create_local_variable(declaration);
+ }
+ return;
+ case STORAGE_CLASS_TYPEDEF:
+ case STORAGE_CLASS_THREAD:
+ case STORAGE_CLASS_THREAD_EXTERN:
+ case STORAGE_CLASS_THREAD_STATIC:
+ return;
+ }
+ panic("invalid storage class found");
+}
- expression_to_firm(statement->expression);
+static void declaration_statement_to_firm(declaration_statement_t *statement)
+{
+ declaration_t *declaration = statement->declarations_begin;
+ declaration_t *end = statement->declarations_end->next;
+ for( ; declaration != end; declaration = declaration->next) {
+ create_local_variable(declaration);
+ }
}
static void if_statement_to_firm(if_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
- ir_node *condition = expression_to_modeb(statement->condition);
-
- /* make sure we have a mode_b condition */
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
+ ir_node *cur_block = get_cur_block();
ir_node *fallthrough_block = new_immBlock();
/* the true (blocks) */
- ir_node *true_block = new_immBlock();
- add_immBlock_pred(true_block, true_proj);
- mature_immBlock(true_block);
-
- statement_to_firm(statement->true_statement);
- if(get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(fallthrough_block, jmp);
+ ir_node *true_block;
+ if (statement->true_statement != NULL) {
+ true_block = new_immBlock();
+ statement_to_firm(statement->true_statement);
+ if(get_cur_block() != NULL) {
+ ir_node *jmp = new_Jmp();
+ add_immBlock_pred(fallthrough_block, jmp);
+ }
+ } else {
+ true_block = fallthrough_block;
}
/* the false (blocks) */
+ ir_node *false_block;
if(statement->false_statement != NULL) {
- ir_node *false_block = new_immBlock();
- add_immBlock_pred(false_block, false_proj);
- mature_immBlock(false_block);
+ false_block = new_immBlock();
statement_to_firm(statement->false_statement);
if(get_cur_block() != NULL) {
add_immBlock_pred(fallthrough_block, jmp);
}
} else {
- add_immBlock_pred(fallthrough_block, false_proj);
+ false_block = fallthrough_block;
+ }
+
+ /* create the condition */
+ if(cur_block != NULL) {
+ set_cur_block(cur_block);
+ create_condition_evaluation(statement->condition, true_block,
+ false_block);
+ }
+
+ mature_immBlock(true_block);
+ if(false_block != fallthrough_block) {
+ mature_immBlock(false_block);
}
mature_immBlock(fallthrough_block);
static void while_statement_to_firm(while_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
-
ir_node *jmp = NULL;
if(get_cur_block() != NULL) {
jmp = new_Jmp();
add_immBlock_pred(header_block, jmp);
}
- /* create the condition */
- ir_node *condition = expression_to_modeb(statement->condition);
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
-
/* the false block */
ir_node *false_block = new_immBlock();
- add_immBlock_pred(false_block, false_proj);
/* the loop body */
- ir_node *body_block = new_immBlock();
- add_immBlock_pred(body_block, true_proj);
- mature_immBlock(body_block);
-
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = false_block;
+ ir_node *body_block;
+ if (statement->body != NULL) {
+ ir_node *old_continue_label = continue_label;
+ ir_node *old_break_label = break_label;
+ continue_label = header_block;
+ break_label = false_block;
- statement_to_firm(statement->body);
+ body_block = new_immBlock();
+ statement_to_firm(statement->body);
- assert(continue_label == header_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
+ assert(continue_label == header_block);
+ assert(break_label == false_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
- if(get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(header_block, jmp);
+ if(get_cur_block() != NULL) {
+ jmp = new_Jmp();
+ add_immBlock_pred(header_block, jmp);
+ }
+ } else {
+ body_block = header_block;
}
- mature_immBlock(header_block);
+ /* create the condition */
+ set_cur_block(header_block);
+
+ create_condition_evaluation(statement->condition, body_block, false_block);
+ mature_immBlock(body_block);
mature_immBlock(false_block);
+ mature_immBlock(header_block);
set_cur_block(false_block);
}
static void do_while_statement_to_firm(do_while_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
-
ir_node *jmp = NULL;
if(get_cur_block() != NULL) {
jmp = new_Jmp();
add_immBlock_pred(body_block, jmp);
}
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = false_block;
+ if (statement->body != NULL) {
+ ir_node *old_continue_label = continue_label;
+ ir_node *old_break_label = break_label;
+ continue_label = header_block;
+ break_label = false_block;
- statement_to_firm(statement->body);
+ statement_to_firm(statement->body);
- assert(continue_label == header_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
+ assert(continue_label == header_block);
+ assert(break_label == false_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
- if(get_cur_block() == NULL) {
- mature_immBlock(header_block);
- mature_immBlock(body_block);
- return;
+ if (get_cur_block() == NULL) {
+ mature_immBlock(header_block);
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ return;
+ }
}
ir_node *body_jmp = new_Jmp();
mature_immBlock(header_block);
/* create the condition */
- ir_node *condition = expression_to_modeb(statement->condition);
- ir_node *cond = new_d_Cond(dbgi, condition);
- ir_node *true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
+ set_cur_block(header_block);
- add_immBlock_pred(body_block, true_proj);
+ create_condition_evaluation(statement->condition, body_block, false_block);
mature_immBlock(body_block);
-
- add_immBlock_pred(false_block, false_proj);
mature_immBlock(false_block);
+ mature_immBlock(header_block);
set_cur_block(false_block);
}
static void for_statement_to_firm(for_statement_t *statement)
{
- dbg_info *const dbgi = get_dbg_info(&statement->statement.source_position);
-
ir_node *jmp = NULL;
if (get_cur_block() != NULL) {
if(statement->initialisation != NULL) {
expression_to_firm(statement->initialisation);
}
+
+ /* create declarations */
+ declaration_t *declaration = statement->context.declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ create_local_declaration(declaration);
+ }
+
jmp = new_Jmp();
}
+
/* create the step block */
ir_node *const step_block = new_immBlock();
if (statement->step != NULL) {
expression_to_firm(statement->step);
}
- ir_node *const step_jmp = new_Jmp();
+ ir_node *const step_jmp = new_Jmp();
/* create the header block */
ir_node *const header_block = new_immBlock();
}
add_immBlock_pred(header_block, step_jmp);
- /* create the condition */
- ir_node *true_proj;
- ir_node *false_proj;
- if (statement->condition != NULL) {
- ir_node *const condition = expression_to_modeb(statement->condition);
- ir_node *const cond = new_d_Cond(dbgi, condition);
- true_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_true);
- false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
- } else {
- keep_alive(header_block);
- true_proj = new_Jmp();
- false_proj = NULL;
- }
-
/* the false block */
ir_node *const false_block = new_immBlock();
- if (false_proj != NULL) {
- add_immBlock_pred(false_block, false_proj);
- }
/* the loop body */
- ir_node *const body_block = new_immBlock();
- add_immBlock_pred(body_block, true_proj);
- mature_immBlock(body_block);
-
- ir_node *const old_continue_label = continue_label;
- ir_node *const old_break_label = break_label;
- continue_label = step_block;
- break_label = false_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) {
- ir_node *const jmp = new_Jmp();
- add_immBlock_pred(step_block, jmp);
- }
-
- mature_immBlock(step_block);
- mature_immBlock(header_block);
- mature_immBlock(false_block);
-
- set_cur_block(false_block);
-}
-
-static void create_declaration_entity(declaration_t *declaration,
- declaration_type_t declaration_type,
- ir_type *parent_type)
-{
- ident *id = new_id_from_str(declaration->symbol->string);
- ir_type *irtype = get_ir_type(declaration->type);
- ir_entity *entity = new_entity(parent_type, id, irtype);
- set_entity_ld_ident(entity, id);
-
- declaration->declaration_type = declaration_type;
- declaration->v.entity = entity;
- set_entity_variability(entity, variability_uninitialized);
- /* TODO: visibility? */
-}
-
-static void create_initializer(declaration_t *declaration)
-{
- initializer_t *initializer = declaration->init.initializer;
- if(initializer == NULL)
- return;
-
- if(initializer->type == INITIALIZER_VALUE) {
- assert(initializer->designator == NULL);
- assert(initializer->next == NULL);
- ir_node *init_node = expression_to_firm(initializer->v.value);
-
- if(declaration->declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) {
- set_value(declaration->v.value_number, init_node);
- } else {
- ir_entity *entity = declaration->v.entity;
-
- set_entity_variability(entity, variability_initialized);
- set_atomic_ent_value(entity, init_node);
+ 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();
+ 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 {
- assert(initializer->type == INITIALIZER_LIST);
- panic("list initializer not supported yet");
+ body_block = step_block;
}
-}
-
-static void create_local_variable(declaration_t *declaration)
-{
- bool needs_entity = declaration->address_taken;
-
- assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
- if(needs_entity) {
- ir_type *frame_type = get_irg_frame_type(current_ir_graph);
- create_declaration_entity(declaration,
- DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY,
- frame_type);
+ /* create the condition */
+ set_cur_block(header_block);
+ if (statement->condition != NULL) {
+ create_condition_evaluation(statement->condition, body_block,
+ false_block);
} else {
- declaration->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE;
- declaration->v.value_number = next_value_number_function;
- ++next_value_number_function;
+ keep_alive(header_block);
+ jmp = new_Jmp();
+ add_immBlock_pred(body_block, jmp);
}
- create_initializer(declaration);
-}
-
-static void declaration_statement_to_firm(declaration_statement_t *statement)
-{
- declaration_t *declaration = statement->declarations_begin;
- declaration_t *end = statement->declarations_end->next;
- for( ; declaration != end; declaration = declaration->next) {
- type_t *type = declaration->type;
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ mature_immBlock(step_block);
+ mature_immBlock(header_block);
+ mature_immBlock(false_block);
- switch(declaration->storage_class) {
- case STORAGE_CLASS_TYPEDEF:
- continue;
- case STORAGE_CLASS_STATIC:
- panic("static local vars not implemented yet");
- case STORAGE_CLASS_ENUM_ENTRY:
- panic("enum entry declaration in local block found");
- case STORAGE_CLASS_EXTERN:
- panic("extern declaration in local block found");
- case STORAGE_CLASS_NONE:
- case STORAGE_CLASS_AUTO:
- case STORAGE_CLASS_REGISTER:
- if(type->type == TYPE_FUNCTION) {
- panic("nested functions not supported yet");
- } else {
- create_local_variable(declaration);
- }
- continue;
- }
- panic("invalid storage class found");
- }
+ set_cur_block(false_block);
}
static void create_jump_statement(const statement_t *statement,
ir_node *target_block)
{
- dbg_info *dbgi = get_dbg_info(&statement->source_position);
+ if(get_cur_block() == NULL)
+ 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);
- ir_node *old_switch_cond = current_switch_cond;
- ir_node *old_break_label = break_label;
- current_switch_cond = cond;
- break_label = break_block;
+ ir_node *const old_switch_cond = current_switch_cond;
+ ir_node *const old_break_label = break_label;
+ const bool old_saw_default_label = saw_default_label;
+ current_switch_cond = cond;
+ break_label = break_block;
statement_to_firm(statement->body);
add_immBlock_pred(break_block, jmp);
}
+ if (!saw_default_label) {
+ set_cur_block(get_nodes_block(cond));
+ ir_node *const proj = new_d_defaultProj(dbgi, cond,
+ MAGIC_DEFAULT_PN_NUMBER);
+ add_immBlock_pred(break_block, proj);
+ }
+
assert(current_switch_cond == cond);
assert(break_label == break_block);
current_switch_cond = old_switch_cond;
break_label = old_break_label;
+ saw_default_label = old_saw_default_label;
mature_immBlock(break_block);
set_cur_block(break_block);
}
-static long fold_constant(const expression_t *expression)
-{
- ir_graph *old_current_ir_graph = current_ir_graph;
- current_ir_graph = get_const_code_irg();
-
- ir_node *cnst = expression_to_firm(expression);
- if(!is_Const(cnst)) {
- panic("couldn't fold constantl");
- }
- tarval *tv = get_Const_tarval(cnst);
- if(!tarval_is_long(tv)) {
- panic("folded constant not an integer");
- }
-
- long res = get_tarval_long(tv);
-
- current_ir_graph = old_current_ir_graph;
- return res;
-}
-
static void case_label_to_firm(const case_label_statement_t *statement)
{
dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
+ ir_node *const fallthrough = (get_cur_block() == NULL ? NULL : new_Jmp());
+
/* let's create a node and hope firm constant folding creates a Const
* node... */
ir_node *proj;
}
proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
} else {
+ saw_default_label = true;
proj = new_d_defaultProj(dbgi, current_switch_cond,
MAGIC_DEFAULT_PN_NUMBER);
}
ir_node *block = new_immBlock();
+ if (fallthrough != NULL) {
+ add_immBlock_pred(block, fallthrough);
+ }
add_immBlock_pred(block, proj);
mature_immBlock(block);
+
+ statement_to_firm(statement->label_statement);
}
static ir_node *get_label_block(declaration_t *label)
{
- assert(label->namespace == NAMESPACE_LABEL);
+ assert(label->namespc == NAMESPACE_LABEL);
if(label->declaration_type == DECLARATION_TYPE_LABEL_BLOCK) {
return label->v.block;
label->declaration_type = DECLARATION_TYPE_LABEL_BLOCK;
label->v.block = block;
- ARR_APP1(imature_blocks, block);
+ ARR_APP1(ir_node *, imature_blocks, block);
return block;
}
set_cur_block(NULL);
}
+typedef enum modifier_t {
+ ASM_MODIFIER_WRITE_ONLY = 1 << 0,
+ ASM_MODIFIER_READ_WRITE = 1 << 1,
+ ASM_MODIFIER_COMMUTATIVE = 1 << 2,
+ ASM_MODIFIER_EARLYCLOBBER = 1 << 3,
+} modifier_t;
+
+#if 0
+static void asm_statement_to_firm(const asm_statement_t *statement)
+{
+ bool needs_memory = false;
+
+ size_t n_clobbers = 0;
+ asm_clobber_t *clobber = statement->clobbers;
+ for( ; clobber != NULL; clobber = clobber->next) {
+ if(strcmp(clobber->clobber, "memory") == 0) {
+ needs_memory = true;
+ continue;
+ }
+
+ ident *id = new_id_from_str(clobber->clobber);
+ obstack_ptr_grow(&asm_obst, id);
+ ++n_clobbers;
+ }
+ assert(obstack_object_size(&asm_obst) == n_clobbers * sizeof(ident*));
+ ident **clobbers = NULL;
+ if(n_clobbers > 0) {
+ clobbers = obstack_finish(&asm_obst);
+ }
+
+ /* find and count input and output constraints */
+ asm_constraint_t *constraint = statement->inputs;
+ for( ; constraint != NULL; constraint = constraint->next) {
+ int modifiers = 0;
+ bool supports_memop = false;
+ for(const char *c = constraint->constraints; *c != 0; ++c) {
+ /* TODO: improve error messages */
+ switch(*c) {
+ case '?':
+ case '!':
+ panic("multiple alternative assembler constraints not "
+ "supported");
+ case 'm':
+ case 'o':
+ case 'V':
+ case '<':
+ case '>':
+ case 'X':
+ supports_memop = true;
+ obstack_1grow(&asm_obst, *c);
+ break;
+ case '=':
+ if(modifiers & ASM_MODIFIER_READ_WRITE)
+ panic("inconsistent register constraints");
+ modifiers |= ASM_MODIFIER_WRITE_ONLY;
+ break;
+ case '+':
+ if(modifiers & ASM_MODIFIER_WRITE_ONLY)
+ panic("inconsistent register constraints");
+ modifiers |= ASM_MODIFIER_READ_WRITE;
+ break;
+ case '&':
+ modifiers |= ASM_MODIFIER_EARLYCLOBBER;
+ panic("early clobber assembler constraint not supported yet");
+ break;
+ case '%':
+ modifiers |= ASM_MODIFIER_COMMUTATIVE;
+ panic("commutative assembler constraint not supported yet");
+ break;
+ case '#':
+ /* skip register preferences stuff... */
+ while(*c != 0 && *c != ',')
+ ++c;
+ break;
+ case '*':
+ /* skip register preferences stuff... */
+ ++c;
+ break;
+ default:
+ obstack_1grow(&asm_obst, *c);
+ break;
+ }
+ }
+ obstack_1grow(&asm_obst, '\0');
+ const char *constraint_string = obstack_finish(&asm_obst);
+
+ needs_memory |= supports_memop;
+ if(supports_memop) {
+
+ }
+ }
+
+}
+#endif
+
static void statement_to_firm(statement_t *statement)
{
switch(statement->type) {
+ case STATEMENT_INVALID:
+ panic("invalid statement found");
case STATEMENT_COMPOUND:
- compound_statement_to_firm((compound_statement_t*) statement);
+ compound_statement_to_firm(&statement->compound);
return;
case STATEMENT_RETURN:
- return_statement_to_firm((return_statement_t*) statement);
+ return_statement_to_firm(&statement->returns);
return;
case STATEMENT_EXPRESSION:
- expression_statement_to_firm((expression_statement_t*) statement);
+ expression_statement_to_firm(&statement->expression);
return;
case STATEMENT_IF:
- if_statement_to_firm((if_statement_t*) statement);
+ if_statement_to_firm(&statement->ifs);
return;
case STATEMENT_WHILE:
- while_statement_to_firm((while_statement_t*) statement);
+ while_statement_to_firm(&statement->whiles);
return;
case STATEMENT_DO_WHILE:
- do_while_statement_to_firm((do_while_statement_t*) statement);
+ do_while_statement_to_firm(&statement->do_while);
return;
case STATEMENT_DECLARATION:
- declaration_statement_to_firm((declaration_statement_t*) statement);
+ declaration_statement_to_firm(&statement->declaration);
return;
case STATEMENT_BREAK:
create_jump_statement(statement, break_label);
create_jump_statement(statement, continue_label);
return;
case STATEMENT_SWITCH:
- switch_statement_to_firm((switch_statement_t*) statement);
+ switch_statement_to_firm(&statement->switchs);
return;
case STATEMENT_CASE_LABEL:
- case_label_to_firm((case_label_statement_t*) statement);
+ case_label_to_firm(&statement->case_label);
return;
case STATEMENT_FOR:
- for_statement_to_firm((for_statement_t*) statement);
+ for_statement_to_firm(&statement->fors);
return;
case STATEMENT_LABEL:
- label_to_firm((label_statement_t*) statement);
+ label_to_firm(&statement->label);
return;
case STATEMENT_GOTO:
- goto_to_firm((goto_statement_t*) statement);
+ goto_to_firm(&statement->gotos);
return;
- default:
+ case STATEMENT_ASM:
+ //asm_statement_to_firm(&statement->asms);
+ //return;
break;
}
panic("Statement not implemented\n");
}
+static int count_local_declarations(const declaration_t * decl,
+ const declaration_t *const end)
+{
+ int count = 0;
+ for (; decl != end; decl = decl->next) {
+ const type_t *type = skip_typeref(decl->type);
+ switch (type->type) {
+ case TYPE_ATOMIC:
+ case TYPE_ENUM:
+ case TYPE_POINTER:
+ if (!decl->address_taken)
+ ++count;
+ break;
+
+ default: break;
+ }
+ }
+ return count;
+}
+
+static int count_decls_in_stmts(const statement_t *stmt)
+{
+ int count = 0;
+ for (; stmt != NULL; stmt = stmt->base.next) {
+ switch (stmt->type) {
+ case STATEMENT_DECLARATION: {
+ const declaration_statement_t *const decl_stmt =
+ (const declaration_statement_t*)stmt;
+ count += count_local_declarations(decl_stmt->declarations_begin,
+ decl_stmt->declarations_end->next);
+ break;
+ }
+
+ case STATEMENT_COMPOUND: {
+ const compound_statement_t *const comp =
+ (const compound_statement_t*)stmt;
+ count += count_decls_in_stmts(comp->statements);
+ break;
+ }
+
+ case STATEMENT_IF: {
+ const if_statement_t *const if_stmt = (const if_statement_t*)stmt;
+ count += count_decls_in_stmts(if_stmt->true_statement);
+ count += count_decls_in_stmts(if_stmt->false_statement);
+ break;
+ }
+
+ case STATEMENT_SWITCH: {
+ const switch_statement_t *const switch_stmt =
+ (const switch_statement_t*)stmt;
+ count += count_decls_in_stmts(switch_stmt->body);
+ break;
+ }
+
+ case STATEMENT_LABEL: {
+ const label_statement_t *const label_stmt =
+ (const label_statement_t*)stmt;
+ count += count_decls_in_stmts(label_stmt->label_statement);
+ break;
+ }
+
+ case STATEMENT_WHILE: {
+ const while_statement_t *const while_stmt =
+ (const while_statement_t*)stmt;
+ count += count_decls_in_stmts(while_stmt->body);
+ break;
+ }
+
+ case STATEMENT_DO_WHILE: {
+ const do_while_statement_t *const do_while_stmt =
+ (const do_while_statement_t*)stmt;
+ count += count_decls_in_stmts(do_while_stmt->body);
+ break;
+ }
+
+ case STATEMENT_FOR: {
+ const for_statement_t *const for_stmt =
+ (const for_statement_t*)stmt;
+ /* TODO initialisation */
+ count += count_decls_in_stmts(for_stmt->body);
+ break;
+ }
+
+ case STATEMENT_ASM:
+ case STATEMENT_BREAK:
+ case STATEMENT_CASE_LABEL:
+ case STATEMENT_CONTINUE:
+ case STATEMENT_EXPRESSION:
+ case STATEMENT_GOTO:
+ case STATEMENT_INVALID:
+ case STATEMENT_RETURN:
+ break;
+ }
+ }
+ return count;
+}
+
static int get_function_n_local_vars(declaration_t *declaration)
{
- (void) declaration;
- /* TODO */
- return 30;
+ int count = 0;
+
+ /* count parameters */
+ count += count_local_declarations(declaration->context.declarations, NULL);
+
+ /* count local variables declared in body */
+ count += count_decls_in_stmts(declaration->init.statement);
+
+ /* TODO FIXME: Matze: I'm lazy don't want to scan all expressions
+ * for expression statements... */
+ count += 10;
+
+ return count;
}
static void initialize_function_parameters(declaration_t *declaration)
{
- ir_graph *irg = current_ir_graph;
- ir_node *args = get_irg_args(irg);
- ir_node *start_block = get_irg_start_block(irg);
+ ir_graph *irg = current_ir_graph;
+ ir_node *args = get_irg_args(irg);
+ ir_node *start_block = get_irg_start_block(irg);
+ ir_type *function_irtype = get_ir_type(declaration->type);
int n = 0;
declaration_t *parameter = declaration->context.declarations;
- for( ; parameter != NULL; parameter = parameter->next) {
+ for( ; parameter != NULL; parameter = parameter->next, ++n) {
assert(parameter->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ type_t *type = skip_typeref(parameter->type);
- if(parameter->address_taken) {
- panic("address take from parameter not implemented yet");
+ bool needs_entity = parameter->address_taken;
+ assert(!is_type_array(type));
+ if(is_type_compound(type)) {
+ needs_entity = true;
+ }
+
+ if(needs_entity) {
+ ir_entity *entity = get_method_value_param_ent(function_irtype, n);
+ ident *id = new_id_from_str(parameter->symbol->string);
+ set_entity_ident(entity, id);
+
+ parameter->declaration_type
+ = DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY;
+ parameter->v.entity = entity;
+ continue;
}
ir_mode *mode = get_ir_mode(parameter->type);
long pn = n;
ir_node *proj = new_r_Proj(irg, start_block, args, mode, pn);
- ++n;
parameter->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE;
parameter->v.value_number = next_value_number_function;
static void create_function(declaration_t *declaration)
{
- ir_entity *entity = get_function_entity(declaration);
+ ir_entity *function_entity = get_function_entity(declaration);
if(declaration->init.statement == NULL)
return;
+ current_function_decl = declaration;
+ current_function_name = NULL;
+
assert(imature_blocks == NULL);
imature_blocks = NEW_ARR_F(ir_node*, 0);
int n_local_vars = get_function_n_local_vars(declaration);
- ir_graph *irg = new_ir_graph(entity, n_local_vars);
+ ir_graph *irg = new_ir_graph(function_entity, n_local_vars);
ir_node *first_block = get_cur_block();
next_value_number_function = 0;
/* do we have a return statement yet? */
if(get_cur_block() != NULL) {
- assert(declaration->type->type == TYPE_FUNCTION);
- const function_type_t* const func_type
- = (const function_type_t*) declaration->type;
+ type_t *type = skip_typeref(declaration->type);
+ assert(is_type_function(type));
+ const function_type_t *func_type = &type->function;
+ const type_t *return_type
+ = skip_typeref(func_type->return_type);
+
ir_node *ret;
- if (func_type->result_type == type_void) {
+ if (is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
ret = new_Return(get_store(), 0, NULL);
} else {
- ir_mode *const mode = get_ir_mode(func_type->result_type);
- ir_node * in[1];
+ ir_mode *mode;
+ if(is_type_scalar(return_type)) {
+ mode = get_ir_mode(func_type->return_type);
+ } else {
+ mode = mode_P_data;
+ }
+
+ ir_node *in[1];
// ยง5.1.2.2.3 main implicitly returns 0
if (strcmp(declaration->symbol->string, "main") == 0) {
in[0] = new_Const(mode, get_mode_null(mode));
int misalign = 0;
if(align > 0) {
misalign = offset % align;
- offset += misalign;
+ if(misalign > 0) {
+ offset += align - misalign;
+ }
}
set_entity_offset(entity, offset);
static void create_global_variable(declaration_t *declaration)
{
- ir_type *global_type = get_glob_type();
- create_declaration_entity(declaration, DECLARATION_TYPE_GLOBAL_VARIABLE,
- global_type);
+ ir_visibility vis;
+ ir_type *var_type;
+ switch ((storage_class_tag_t)declaration->storage_class) {
+ case STORAGE_CLASS_STATIC:
+ vis = visibility_local;
+ goto global_var;
- ir_entity *entity = declaration->v.entity;
- if(declaration->storage_class == STORAGE_CLASS_STATIC) {
- set_entity_visibility(entity, visibility_local);
- } else if(declaration->storage_class == STORAGE_CLASS_EXTERN) {
- set_entity_visibility(entity, visibility_external_allocated);
- } else {
- set_entity_visibility(entity, visibility_external_visible);
+ case STORAGE_CLASS_EXTERN:
+ vis = visibility_external_allocated;
+ goto global_var;
+
+ case STORAGE_CLASS_NONE:
+ vis = visibility_external_visible;
+ goto global_var;
+
+ case STORAGE_CLASS_THREAD:
+ vis = visibility_external_visible;
+ goto tls_var;
+
+ case STORAGE_CLASS_THREAD_EXTERN:
+ vis = visibility_external_allocated;
+ goto tls_var;
+
+ case STORAGE_CLASS_THREAD_STATIC:
+ vis = visibility_local;
+ goto tls_var;
+
+tls_var:
+ var_type = get_tls_type();
+ goto create_var;
+
+global_var:
+ var_type = get_glob_type();
+ goto create_var;
+
+create_var:
+ create_declaration_entity(declaration, DECLARATION_TYPE_GLOBAL_VARIABLE,
+ var_type);
+ set_entity_visibility(declaration->v.entity, vis);
+
+ current_ir_graph = get_const_code_irg();
+ create_initializer(declaration);
+ return;
+
+ case STORAGE_CLASS_TYPEDEF:
+ case STORAGE_CLASS_AUTO:
+ case STORAGE_CLASS_REGISTER:
+ case STORAGE_CLASS_ENUM_ENTRY:
+ break;
}
- current_ir_graph = get_const_code_irg();
- create_initializer(declaration);
+ panic("Invalid storage class for global variable");
}
static void context_to_firm(context_t *context)
{
+ /* first pass: create declarations */
declaration_t *declaration = context->declarations;
for( ; declaration != NULL; declaration = declaration->next) {
- if(declaration->namespace != NAMESPACE_NORMAL)
+ if(declaration->namespc != NAMESPACE_NORMAL)
continue;
if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
|| declaration->storage_class == STORAGE_CLASS_TYPEDEF)
if(declaration->symbol == NULL)
continue;
- type_t *type = declaration->type;
- if(type->type == TYPE_FUNCTION) {
- create_function(declaration);
+ type_t *type = skip_typeref(declaration->type);
+ if(is_type_function(type)) {
+ get_function_entity(declaration);
} else {
create_global_variable(declaration);
}
}
+
+ /* second pass: create code */
+ declaration = context->declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ if(declaration->namespc != NAMESPACE_NORMAL)
+ continue;
+ if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
+ || declaration->storage_class == STORAGE_CLASS_TYPEDEF)
+ continue;
+ if(declaration->symbol == NULL)
+ continue;
+
+ type_t *type = declaration->type;
+ if(type->type != TYPE_FUNCTION)
+ continue;
+
+ create_function(declaration);
+ }
}
void translation_unit_to_firm(translation_unit_t *unit)
{
- /* remove me later TODO FIXME */
- (void) get_type_size;
+ 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);
+
+ ir_type_int = get_ir_type(type_int);
+ ir_type_const_char = get_ir_type(type_const_char);
+ ir_type_wchar_t = get_ir_type(type_wchar_t);
+ ir_type_void = get_ir_type(type_int); /* we don't have a real void
+ type in firm */
+
+ type_void->base.firm_type = ir_type_void;
/* just to be sure */
continue_label = NULL;
projects / cparser / blobdiff