+/*
+ * This file is part of cparser.
+ * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
#include <config.h>
-#define _GNU_SOURCE
-
#include <assert.h>
#include <string.h>
#include <stdbool.h>
#include "adt/error.h"
#include "adt/array.h"
+#include "symbol_t.h"
#include "token_t.h"
#include "type_t.h"
#include "ast_t.h"
#include "parser.h"
+#include "diagnostic.h"
+#include "lang_features.h"
+#include "types.h"
+#include "driver/firm_opt.h"
+#include "driver/firm_cmdline.h"
#define MAGIC_DEFAULT_PN_NUMBER (long) -314159265
static ir_type *ir_type_int;
static type_t *type_const_char;
-static type_t *type_void;
-static type_t *type_int;
static int next_value_number_function;
static ir_node *continue_label;
static const declaration_t *current_function_decl;
static ir_node *current_function_name;
-
-typedef enum declaration_type_t {
- DECLARATION_TYPE_UNKNOWN,
- DECLARATION_TYPE_FUNCTION,
- DECLARATION_TYPE_GLOBAL_VARIABLE,
- DECLARATION_TYPE_LOCAL_VARIABLE,
- DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY,
- DECLARATION_TYPE_COMPOUND_MEMBER,
- DECLARATION_TYPE_LABEL_BLOCK,
- DECLARATION_TYPE_ENUM_ENTRY
-} declaration_type_t;
+static ir_node *current_funcsig;
+
+static struct obstack asm_obst;
+
+typedef enum declaration_kind_t {
+ DECLARATION_KIND_UNKNOWN,
+ DECLARATION_KIND_FUNCTION,
+ DECLARATION_KIND_VARIABLE_LENGTH_ARRAY,
+ DECLARATION_KIND_GLOBAL_VARIABLE,
+ DECLARATION_KIND_LOCAL_VARIABLE,
+ DECLARATION_KIND_LOCAL_VARIABLE_ENTITY,
+ DECLARATION_KIND_COMPOUND_MEMBER,
+ DECLARATION_KIND_LABEL_BLOCK,
+ DECLARATION_KIND_ENUM_ENTRY
+} declaration_kind_t;
static ir_type *get_ir_type(type_t *type);
+static int count_decls_in_stmts(const statement_t *stmt);
ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
{
- (void) pos;
-#if 0
- const declaration_t *declaration = & value_numbers[pos]->declaration;
+ const declaration_t *declaration = get_irg_loc_description(irg, pos);
- print_warning_prefix(declaration->source_position);
- fprintf(stderr, "variable '%s' might be used uninitialized\n",
- declaration->symbol->string);
-#endif
- fprintf(stderr, "Some variable might be used uninitialized\n");
+ warningf(&declaration->source_position,
+ "variable '%#T' might be used uninitialized",
+ declaration->type, declaration->symbol);
return new_r_Unknown(irg, mode);
}
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)
return pos->input_name;
}
-void init_ast2firm(void)
-{
-}
-
-void exit_ast2firm(void)
+static dbg_info *get_dbg_info(const source_position_t *pos)
{
+ return (dbg_info*) pos;
}
static unsigned unique_id = 0;
return new_id_from_str(buf);
}
-static ir_mode *get_atomic_mode(const atomic_type_t* atomic_type)
+/**
+ * Return the signed integer mode of size bytes.
+ *
+ * @param size the size
+ */
+static ir_mode *get_smode(unsigned size)
{
- switch(atomic_type->atype) {
- case ATOMIC_TYPE_SCHAR:
- case ATOMIC_TYPE_CHAR:
- return mode_Bs;
- case ATOMIC_TYPE_UCHAR:
- return mode_Bu;
- case ATOMIC_TYPE_SHORT:
- return mode_Hs;
- case ATOMIC_TYPE_USHORT:
- return mode_Hu;
- case ATOMIC_TYPE_LONG:
- case ATOMIC_TYPE_INT:
- return mode_Is;
- case ATOMIC_TYPE_ULONG:
- case ATOMIC_TYPE_UINT:
- return mode_Iu;
- case ATOMIC_TYPE_LONGLONG:
- return mode_Ls;
- case ATOMIC_TYPE_ULONGLONG:
- return mode_Lu;
- case ATOMIC_TYPE_FLOAT:
- return mode_F;
- case ATOMIC_TYPE_DOUBLE:
- 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:
- case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
- panic("complex lowering not implemented yet");
- break;
- case ATOMIC_TYPE_FLOAT_IMAGINARY:
- case ATOMIC_TYPE_DOUBLE_IMAGINARY:
- case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
- panic("imaginary lowering not implemented yet");
- break;
-#endif
- case ATOMIC_TYPE_VOID:
- /* firm has no real void... */
- return mode_Is;
- case ATOMIC_TYPE_INVALID:
- break;
+ static ir_mode *s_modes[16 + 1] = {0, };
+ ir_mode *res;
+
+ if (size <= 0 || size > 16)
+ return NULL;
+
+ res = s_modes[size];
+ if (res == NULL) {
+ unsigned bits;
+ char name[32];
+
+ bits = size * 8;
+ snprintf(name, sizeof(name), "i%u", bits);
+ res = new_ir_mode(name, irms_int_number, bits, 1, irma_twos_complement,
+ bits <= machine_size ? machine_size : bits );
+
+ s_modes[size] = res;
}
- panic("Encountered unknown atomic type");
+ return res;
}
+/**
+ * Return the unsigned integer mode of size bytes.
+ *
+ * @param size the size
+ */
+static ir_mode *get_umode(unsigned size)
+{
+ static ir_mode *u_modes[16 + 1] = {0, };
+ ir_mode *res;
+
+ if (size <= 0 || size > 16)
+ return NULL;
+
+ res = u_modes[size];
+ if (res == NULL) {
+ unsigned bits;
+ char name[32];
-static unsigned get_type_size(type_t *type);
+ bits = size * 8;
+ snprintf(name, sizeof(name), "u%u", bits);
+ res = new_ir_mode(name, irms_int_number, bits, 0, irma_twos_complement,
+ bits <= machine_size ? machine_size : bits );
-static unsigned get_atomic_type_size(const atomic_type_t *type)
-{
- switch(type->atype) {
- case ATOMIC_TYPE_CHAR:
- case ATOMIC_TYPE_SCHAR:
- case ATOMIC_TYPE_UCHAR:
- return 1;
+ u_modes[size] = res;
+ }
+ return res;
+}
- case ATOMIC_TYPE_SHORT:
- case ATOMIC_TYPE_USHORT:
- return 2;
+/**
+ * Return the pointer mode of size bytes.
+ *
+ * @param size the size
+ */
+static ir_mode *get_ptrmode(unsigned size, char *name)
+{
+ static ir_mode *p_modes[16 + 1] = {0, };
+ ir_mode *res;
- case ATOMIC_TYPE_BOOL:
- case ATOMIC_TYPE_INT:
- case ATOMIC_TYPE_UINT:
- case ATOMIC_TYPE_LONG:
- case ATOMIC_TYPE_ULONG:
- case ATOMIC_TYPE_FLOAT:
- return 4;
+ if (size <= 0 || size > 16)
+ return NULL;
- case ATOMIC_TYPE_LONGLONG:
- case ATOMIC_TYPE_ULONGLONG:
- case ATOMIC_TYPE_DOUBLE:
- return 8;
+ res = p_modes[size];
+ if (res == NULL) {
+ unsigned bits;
+ char buf[32];
- case ATOMIC_TYPE_LONG_DOUBLE:
- return 12;
+ bits = size * 8;
+ if (name == NULL) {
+ snprintf(buf, sizeof(buf), "p%u", bits);
+ name = buf;
+ }
+ res = new_ir_mode(name, irms_reference, bits, 0, irma_twos_complement,
+ bits <= machine_size ? machine_size : bits);
- case ATOMIC_TYPE_VOID:
- return 1;
+ p_modes[size] = res;
- case ATOMIC_TYPE_INVALID:
- break;
+ set_reference_mode_signed_eq(res, get_smode(size));
+ set_reference_mode_unsigned_eq(res, get_umode(size));
}
- panic("Trying to determine size of invalid atomic type");
+ return res;
+}
+
+static ir_mode *_atomic_modes[ATOMIC_TYPE_LAST+1];
+
+static ir_mode *mode_int, *mode_uint;
+
+static ir_node *expression_to_firm(const expression_t *expression);
+static inline ir_mode *get_ir_mode(type_t *type);
+
+/**
+ * Initialises the atomic modes depending on the machine size.
+ */
+static void init_atomic_modes(void) {
+ unsigned int_size = machine_size < 32 ? 2 : 4;
+ unsigned long_size = machine_size < 64 ? 4 : 8;
+ unsigned llong_size = machine_size < 32 ? 4 : 8;
+
+ /* firm has no real void... */
+ _atomic_modes[ATOMIC_TYPE_VOID] = mode_T;
+ _atomic_modes[ATOMIC_TYPE_CHAR] = char_is_signed ? get_smode(1) : get_umode(1);
+ _atomic_modes[ATOMIC_TYPE_SCHAR] = get_smode(1);
+ _atomic_modes[ATOMIC_TYPE_UCHAR] = get_umode(1);
+ _atomic_modes[ATOMIC_TYPE_SHORT] = get_smode(2);
+ _atomic_modes[ATOMIC_TYPE_USHORT] = get_umode(2);
+ _atomic_modes[ATOMIC_TYPE_INT] = get_smode(int_size);
+ _atomic_modes[ATOMIC_TYPE_UINT] = get_umode(int_size);
+ _atomic_modes[ATOMIC_TYPE_LONG] = get_smode(long_size);
+ _atomic_modes[ATOMIC_TYPE_ULONG] = get_umode(long_size);
+ _atomic_modes[ATOMIC_TYPE_LONGLONG] = get_smode(llong_size);
+ _atomic_modes[ATOMIC_TYPE_ULONGLONG] = get_umode(llong_size);
+ _atomic_modes[ATOMIC_TYPE_FLOAT] = mode_F;
+ _atomic_modes[ATOMIC_TYPE_DOUBLE] = mode_D;
+ _atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = mode_E;
+ _atomic_modes[ATOMIC_TYPE_BOOL] = get_umode(int_size);
+
+ _atomic_modes[ATOMIC_TYPE_BOOL] = _atomic_modes[ATOMIC_TYPE_INT];
+ _atomic_modes[ATOMIC_TYPE_FLOAT_IMAGINARY] = _atomic_modes[ATOMIC_TYPE_FLOAT];
+ _atomic_modes[ATOMIC_TYPE_DOUBLE_IMAGINARY] = _atomic_modes[ATOMIC_TYPE_DOUBLE];
+ _atomic_modes[ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY] = _atomic_modes[ATOMIC_TYPE_LONG_DOUBLE];
+
+ /* Hmm, pointers should be machine size */
+ set_modeP_data(get_ptrmode(machine_size >> 3, NULL));
+ set_modeP_code(get_ptrmode(machine_size >> 3, NULL));
+
+ mode_int = _atomic_modes[ATOMIC_TYPE_INT];
+ mode_uint = _atomic_modes[ATOMIC_TYPE_UINT];
+}
+
+static ir_mode *get_atomic_mode(const atomic_type_t* atomic_type)
+{
+ ir_mode *res = NULL;
+ if ((unsigned)atomic_type->akind <= (unsigned)ATOMIC_TYPE_LAST)
+ res = _atomic_modes[(unsigned)atomic_type->akind];
+ if (res == NULL)
+ panic("Encountered unknown atomic type");
+ return res;
}
static unsigned get_compound_type_size(compound_type_t *type)
static unsigned get_array_type_size(array_type_t *type)
{
+ assert(!type->is_vla);
ir_type *irtype = get_ir_type((type_t*) type);
return get_type_size_bytes(irtype);
}
-static unsigned get_type_size(type_t *type)
+
+static unsigned get_type_size_const(type_t *type)
{
type = skip_typeref(type);
- switch(type->type) {
+ switch(type->kind) {
+ case TYPE_ERROR:
+ panic("error type occured");
case TYPE_ATOMIC:
- return get_atomic_type_size(&type->atomic);
+ return get_atomic_type_size(type->atomic.akind);
case TYPE_ENUM:
- return get_mode_size_bytes(mode_Is);
+ return get_mode_size_bytes(mode_int);
case TYPE_COMPOUND_UNION:
case TYPE_COMPOUND_STRUCT:
return get_compound_type_size(&type->compound);
case TYPE_ARRAY:
return get_array_type_size(&type->array);
case TYPE_BUILTIN:
- return get_type_size(type->builtin.real_type);
+ return get_type_size_const(type->builtin.real_type);
+ case TYPE_BITFIELD:
+ panic("type size of bitfield request");
case TYPE_TYPEDEF:
case TYPE_TYPEOF:
case TYPE_INVALID:
panic("Trying to determine size of invalid type");
}
+static ir_node *get_type_size(type_t *type)
+{
+ type = skip_typeref(type);
+
+ if(is_type_array(type) && type->array.is_vla) {
+ ir_node *size_node = type->array.size_node;
+ if(size_node == NULL) {
+ size_node = expression_to_firm(type->array.size_expression);
+ assert(!is_Const(size_node));
+ type->array.size_node = size_node;
+ }
+
+ ir_node *elem_size = get_type_size(type->array.element_type);
+ ir_mode *mode = get_irn_mode(size_node);
+ ir_node *real_size = new_d_Mul(NULL, size_node, elem_size, mode);
+ return real_size;
+ }
+
+ ir_mode *mode = get_ir_mode(type_size_t);
+ symconst_symbol sym;
+ sym.type_p = get_ir_type(type);
+ return new_SymConst(mode, sym, symconst_type_size);
+}
+
static unsigned count_parameters(const function_type_t *function_type)
{
unsigned count = 0;
}
-
-
-static long fold_constant(const expression_t *expression);
-
static ir_type *create_atomic_type(const atomic_type_t *type)
{
+ dbg_info *dbgi = get_dbg_info(&type->type.source_position);
ir_mode *mode = get_atomic_mode(type);
ident *id = get_mode_ident(mode);
- ir_type *irtype = new_type_primitive(id, mode);
+ ir_type *irtype = new_d_type_primitive(id, mode, dbgi);
+
+ /* TODO: this is x86 specific, we should fiddle this into
+ * lang_features.h somehow... */
+ if(type->akind == ATOMIC_TYPE_LONG_DOUBLE
+ || type->akind == ATOMIC_TYPE_DOUBLE
+ || type->akind == ATOMIC_TYPE_LONGLONG
+ || type->akind == ATOMIC_TYPE_ULONGLONG) {
+ set_type_alignment_bytes(irtype, 4);
+ }
return irtype;
}
ident *id = unique_ident("functiontype");
int n_parameters = count_parameters(function_type);
int n_results = return_type == type_void ? 0 : 1;
- ir_type *irtype = new_type_method(id, n_parameters, n_results);
+ dbg_info *dbgi = get_dbg_info(&function_type->type.source_position);
+ ir_type *irtype = new_d_type_method(id, n_parameters, n_results, dbgi);
if(return_type != type_void) {
ir_type *restype = get_ir_type(return_type);
* again (might be a struct). We therefore first create a void* pointer
* and then set the real points_to type
*/
- ir_type *ir_type = new_type_pointer(unique_ident("pointer"),
- ir_type_void, mode_P_data);
+ dbg_info *dbgi = get_dbg_info(&type->type.source_position);
+ ir_type *ir_type = new_d_type_pointer(unique_ident("pointer"),
+ ir_type_void, mode_P_data, dbgi);
type->type.firm_type = ir_type;
ir_points_to = get_ir_type(points_to);
type_t *element_type = type->element_type;
ir_type *ir_element_type = get_ir_type(element_type);
- ident *id = unique_ident("array");
- ir_type *ir_type = new_type_array(id, 1, ir_element_type);
+ ident *id = unique_ident("array");
+ dbg_info *dbgi = get_dbg_info(&type->type.source_position);
+ ir_type *ir_type = new_d_type_array(id, 1, ir_element_type, dbgi);
- if(type->size != NULL) {
- int n_elements = fold_constant(type->size);
+ const int align = get_type_alignment_bytes(ir_element_type);
+ set_type_alignment_bytes(ir_type, align);
+
+ if(type->size_constant) {
+ int n_elements = type->size;
set_array_bounds_int(ir_type, 0, 0, n_elements);
size_t elemsize = get_type_size_bytes(ir_element_type);
- int align = get_type_alignment_bytes(ir_element_type);
if(elemsize % align > 0) {
elemsize += align - (elemsize % align);
}
set_type_size_bytes(ir_type, n_elements * elemsize);
- set_type_alignment_bytes(ir_type, align);
- set_type_state(ir_type, layout_fixed);
+ } else {
+ set_array_lower_bound_int(ir_type, 0, 0);
}
+ set_type_state(ir_type, layout_fixed);
return ir_type;
}
-#define INVALID_TYPE ((ir_type_ptr)-1)
+/**
+ * Return the signed integer type of size bits.
+ *
+ * @param size the size
+ */
+static ir_type *get_signed_int_type_for_bit_size(ir_type *base_tp,
+ unsigned size)
+{
+ static ir_mode *s_modes[64 + 1] = {NULL, };
+ ir_type *res;
+ ir_mode *mode;
+
+ if (size <= 0 || size > 64)
+ return NULL;
+
+ mode = s_modes[size];
+ if (mode == NULL) {
+ char name[32];
+
+ snprintf(name, sizeof(name), "bf_I%u", size);
+ mode = new_ir_mode(name, irms_int_number, size, 1, irma_twos_complement,
+ size <= 32 ? 32 : size );
+ s_modes[size] = mode;
+ }
+
+ char name[32];
+ snprintf(name, sizeof(name), "I%u", size);
+ ident *id = new_id_from_str(name);
+ dbg_info *dbgi = get_dbg_info(&builtin_source_position);
+ res = new_d_type_primitive(mangle_u(get_type_ident(base_tp), id), mode, dbgi);
+ set_primitive_base_type(res, base_tp);
+
+ return res;
+}
+
+/**
+ * Return the unsigned integer type of size bits.
+ *
+ * @param size the size
+ */
+static ir_type *get_unsigned_int_type_for_bit_size(ir_type *base_tp,
+ unsigned size)
+{
+ static ir_mode *u_modes[64 + 1] = {NULL, };
+ ir_type *res;
+ ir_mode *mode;
+
+ if (size <= 0 || size > 64)
+ return NULL;
+
+ mode = u_modes[size];
+ if (mode == NULL) {
+ char name[32];
+
+ snprintf(name, sizeof(name), "bf_U%u", size);
+ mode = new_ir_mode(name, irms_int_number, size, 0, irma_twos_complement,
+ size <= 32 ? 32 : size );
+ u_modes[size] = mode;
+ }
+
+ char name[32];
-static ir_type *create_struct_type(compound_type_t *type)
+ snprintf(name, sizeof(name), "U%u", size);
+ ident *id = new_id_from_str(name);
+ dbg_info *dbgi = get_dbg_info(&builtin_source_position);
+ res = new_d_type_primitive(mangle_u(get_type_ident(base_tp), id), mode, dbgi);
+ set_primitive_base_type(res, base_tp);
+
+ return res;
+}
+
+static ir_type *create_bitfield_type(bitfield_type_t *const type)
{
- symbol_t *symbol = type->declaration->symbol;
- ident *id;
- if(symbol != NULL) {
- id = unique_ident(symbol->string);
+ type_t *base = skip_typeref(type->base);
+ assert(base->kind == TYPE_ATOMIC);
+ ir_type *irbase = get_ir_type(base);
+
+ unsigned size = fold_constant(type->size);
+
+ assert(!is_type_float(base));
+ if(is_type_signed(base)) {
+ return get_signed_int_type_for_bit_size(irbase, size);
} else {
- id = unique_ident("__anonymous_struct");
+ return get_unsigned_int_type_for_bit_size(irbase, size);
+ }
+}
+
+#define INVALID_TYPE ((ir_type_ptr)-1)
+
+static ir_type *create_union_type(compound_type_t *type, ir_type *irtype,
+ size_t *outer_offset, size_t *outer_align);
+
+static ir_type *create_struct_type(compound_type_t *type, ir_type *irtype,
+ size_t *outer_offset, size_t *outer_align)
+{
+ declaration_t *declaration = type->declaration;
+ if(declaration->v.irtype != NULL) {
+ return declaration->v.irtype;
}
- ir_type *ir_type = new_type_struct(id);
- type->type.firm_type = ir_type;
+ size_t align_all = 1;
+ size_t offset = 0;
+ size_t bit_offset = 0;
+ if(irtype == NULL) {
+ symbol_t *symbol = declaration->symbol;
+ ident *id;
+ if(symbol != NULL) {
+ id = unique_ident(symbol->string);
+ } else {
+ id = unique_ident("__anonymous_struct");
+ }
+ dbg_info *dbgi = get_dbg_info(&type->type.source_position);
+
+ irtype = new_d_type_struct(id, dbgi);
+
+ declaration->v.irtype = irtype;
+ type->type.firm_type = irtype;
+ } else {
+ offset = *outer_offset;
+ align_all = *outer_align;
+ }
- int align_all = 1;
- int offset = 0;
- declaration_t *entry = type->declaration->context.declarations;
+ declaration_t *entry = declaration->scope.declarations;
for( ; entry != NULL; entry = entry->next) {
if(entry->namespc != NAMESPACE_NORMAL)
continue;
- ident *ident = new_id_from_str(entry->symbol->string);
- ir_type_ptr entry_ir_type = get_ir_type(entry->type);
+ symbol_t *symbol = entry->symbol;
+ type_t *entry_type = skip_typeref(entry->type);
+ dbg_info *dbgi = get_dbg_info(&entry->source_position);
+ ident *ident;
+ if(symbol != NULL) {
+ ident = new_id_from_str(symbol->string);
+ } else {
+ if(entry_type->kind == TYPE_COMPOUND_STRUCT) {
+ create_struct_type(&entry_type->compound, irtype, &offset,
+ &align_all);
+ continue;
+ } else if(entry_type->kind == TYPE_COMPOUND_UNION) {
+ create_union_type(&entry_type->compound, irtype, &offset,
+ &align_all);
+ continue;
+ } else {
+ assert(entry_type->kind == TYPE_BITFIELD);
+ }
+ ident = unique_ident("anon");
+ }
+
+ ir_type *base_irtype;
+ if(entry_type->kind == TYPE_BITFIELD) {
+ base_irtype = get_ir_type(entry_type->bitfield.base);
+ } else {
+ base_irtype = get_ir_type(entry_type);
+ }
- 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;
- if (misalign != 0)
- offset += entry_alignment - misalign;
+ size_t entry_alignment = get_type_alignment_bytes(base_irtype);
+ size_t misalign = offset % entry_alignment;
- ir_entity *entity = new_entity(ir_type, ident, entry_ir_type);
- set_entity_offset(entity, offset);
- add_struct_member(ir_type, entity);
- entry->declaration_type = DECLARATION_TYPE_COMPOUND_MEMBER;
- entry->v.entity = entity;
+ ir_type *entry_irtype = get_ir_type(entry_type);
+ ir_entity *entity = new_d_entity(irtype, ident, entry_irtype, dbgi);
+
+ size_t base;
+ size_t bits_remainder;
+ if(entry_type->kind == TYPE_BITFIELD) {
+ size_t size_bits = fold_constant(entry_type->bitfield.size);
+ size_t rest_size_bits = (entry_alignment - misalign)*8 - bit_offset;
+
+ if(size_bits > rest_size_bits) {
+ /* start a new bucket */
+ offset += entry_alignment - misalign;
+ bit_offset = 0;
+
+ base = offset;
+ bits_remainder = 0;
+ } else {
+ /* put into current bucket */
+ base = offset - misalign;
+ bits_remainder = misalign * 8 + bit_offset;
+ }
+
+ offset += size_bits / 8;
+ bit_offset = bit_offset + (size_bits % 8);
+ } else {
+ size_t entry_size = get_type_size_bytes(base_irtype);
+ if(misalign > 0 || bit_offset > 0)
+ offset += entry_alignment - misalign;
+
+ base = offset;
+ bits_remainder = 0;
+ offset += entry_size;
+ bit_offset = 0;
+ }
- offset += entry_size;
if(entry_alignment > align_all) {
if(entry_alignment % align_all != 0) {
- panic("Uneven alignments not supported yet");
+ panic("uneven alignments not supported yet");
}
align_all = entry_alignment;
}
+
+ set_entity_offset(entity, base);
+ set_entity_offset_bits_remainder(entity,
+ (unsigned char) bits_remainder);
+ //add_struct_member(irtype, entity);
+ entry->declaration_kind = DECLARATION_KIND_COMPOUND_MEMBER;
+ assert(entry->v.entity == NULL);
+ entry->v.entity = entity;
}
- int misalign = offset % align_all;
- offset += misalign;
- set_type_alignment_bytes(ir_type, align_all);
- set_type_size_bytes(ir_type, offset);
- set_type_state(ir_type, layout_fixed);
+ size_t misalign = offset % align_all;
+ if(misalign > 0 || bit_offset > 0) {
+ offset += align_all - misalign;
+ }
- return ir_type;
+ if(outer_offset != NULL) {
+ *outer_offset = offset;
+ *outer_align = align_all;
+ } else {
+ set_type_alignment_bytes(irtype, align_all);
+ set_type_size_bytes(irtype, offset);
+ set_type_state(irtype, layout_fixed);
+ }
+
+ return irtype;
}
-static ir_type *create_union_type(compound_type_t *type)
+static ir_type *create_union_type(compound_type_t *type, ir_type *irtype,
+ size_t *outer_offset, size_t *outer_align)
{
declaration_t *declaration = type->declaration;
- symbol_t *symbol = declaration->symbol;
- ident *id;
- if(symbol != NULL) {
- id = unique_ident(symbol->string);
+ if(declaration->v.irtype != NULL) {
+ return declaration->v.irtype;
+ }
+
+ size_t align_all = 1;
+ size_t offset = 0;
+ size_t size = 0;
+
+ if(irtype == NULL) {
+ symbol_t *symbol = declaration->symbol;
+ ident *id;
+ if(symbol != NULL) {
+ id = unique_ident(symbol->string);
+ } else {
+ id = unique_ident("__anonymous_union");
+ }
+ dbg_info *dbgi = get_dbg_info(&type->type.source_position);
+
+ irtype = new_d_type_union(id, dbgi);
+
+ declaration->v.irtype = irtype;
+ type->type.firm_type = irtype;
} else {
- id = unique_ident("__anonymous_union");
+ offset = *outer_offset;
+ align_all = *outer_align;
}
- ir_type *ir_type = new_type_union(id);
- type->type.firm_type = ir_type;
+ type->type.firm_type = irtype;
- int align_all = 1;
- int size = 0;
- declaration_t *entry = declaration->context.declarations;
+ declaration_t *entry = declaration->scope.declarations;
for( ; entry != NULL; entry = entry->next) {
if(entry->namespc != NAMESPACE_NORMAL)
continue;
- ident *ident = new_id_from_str(entry->symbol->string);
- ir_type_ptr entry_ir_type = get_ir_type(entry->type);
+ symbol_t *symbol = entry->symbol;
+ type_t *entry_type = skip_typeref(entry->type);
+ ir_type *entry_ir_type = get_ir_type(entry_type);
+
+ ident *ident;
+ if(symbol != NULL) {
+ ident = new_id_from_str(entry->symbol->string);
+ } else {
+ size_t offs = offset;
+ if(entry_type->kind == TYPE_COMPOUND_STRUCT) {
+ create_struct_type(&entry_type->compound, irtype, &offs,
+ &align_all);
+ continue;
+ } else if(entry_type->kind == TYPE_COMPOUND_UNION) {
+ create_union_type(&entry_type->compound, irtype, &offs,
+ &align_all);
+ continue;
+ } else {
+ panic("anonymous union member must be struct or union");
+ }
+ size_t entry_size = offs - offset;
+ if(entry_size > size) {
+ size = entry_size;
+ }
+ ident = unique_ident("anon");
+ }
- int entry_size = get_type_size_bytes(entry_ir_type);
- int entry_alignment = get_type_alignment_bytes(entry_ir_type);
+ size_t entry_size = get_type_size_bytes(entry_ir_type);
+ size_t entry_alignment = get_type_alignment_bytes(entry_ir_type);
- ir_entity *entity = new_entity(ir_type, ident, entry_ir_type);
- add_union_member(ir_type, entity);
+ dbg_info *const dbgi = get_dbg_info(&entry->source_position);
+ ir_entity *const entity = new_d_entity(irtype, ident, entry_ir_type,
+ dbgi);
+ //add_union_member(irtype, entity);
set_entity_offset(entity, 0);
- entry->declaration_type = DECLARATION_TYPE_COMPOUND_MEMBER;
+ entry->declaration_kind = DECLARATION_KIND_COMPOUND_MEMBER;
+ assert(entry->v.entity == NULL);
entry->v.entity = entity;
if(entry_size > size) {
}
}
- set_type_alignment_bytes(ir_type, align_all);
- set_type_size_bytes(ir_type, size);
- set_type_state(ir_type, layout_fixed);
+ if(outer_offset != NULL) {
+ assert(*outer_offset == offset);
- return ir_type;
-}
+ size_t misalign = offset % align_all;
+ if (misalign != 0)
+ size += align_all - misalign;
+ *outer_offset += size;
-static ir_node *expression_to_firm(const expression_t *expression);
-static inline ir_mode *get_ir_mode(type_t *type);
+ if(align_all > *outer_align) {
+ if(align_all % *outer_align != 0) {
+ panic("uneven alignments not supported yet");
+ }
+ *outer_align = align_all;
+ }
+ } else {
+ set_type_alignment_bytes(irtype, align_all);
+ set_type_size_bytes(irtype, size);
+ set_type_state(irtype, layout_fixed);
+ declaration->v.irtype = irtype;
+ }
+
+ return irtype;
+}
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);
+ ir_mode *const mode = mode_int;
tarval *const one = get_mode_one(mode);
tarval * tv_next = get_tarval_null(mode);
if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY)
break;
- declaration->declaration_type = DECLARATION_TYPE_ENUM_ENTRY;
+ declaration->declaration_kind = DECLARATION_KIND_ENUM_ENTRY;
expression_t *const init = declaration->init.enum_value;
if (init != NULL) {
}
ir_type *firm_type = NULL;
- switch(type->type) {
+ switch(type->kind) {
+ case TYPE_ERROR:
+ panic("error type occured");
case TYPE_ATOMIC:
firm_type = create_atomic_type(&type->atomic);
break;
firm_type = create_array_type(&type->array);
break;
case TYPE_COMPOUND_STRUCT:
- firm_type = create_struct_type(&type->compound);
+ firm_type = create_struct_type(&type->compound, NULL, NULL, NULL);
break;
case TYPE_COMPOUND_UNION:
- firm_type = create_union_type(&type->compound);
+ firm_type = create_union_type(&type->compound, NULL, NULL, NULL);
break;
case TYPE_ENUM:
firm_type = create_enum_type(&type->enumt);
case TYPE_BUILTIN:
firm_type = get_ir_type(type->builtin.real_type);
break;
+ case TYPE_BITFIELD:
+ firm_type = create_bitfield_type(&type->bitfield);
+ break;
+
case TYPE_TYPEOF:
case TYPE_TYPEDEF:
case TYPE_INVALID:
/* firm doesn't report a mode for arrays somehow... */
if(is_Array_type(irtype)) {
- return mode_P;
+ return mode_P_data;
}
ir_mode *mode = get_type_mode(irtype);
return mode;
}
+static ident *predef_idents[rts_max];
+
+/** Names of the runtime functions. */
+static const struct {
+ int id; /**< the rts id */
+ int n_res; /**< number of return values */
+ const char *name; /**< the name of the rts function */
+ int n_params; /**< number of parameters */
+ unsigned flags; /**< language flags */
+} rts_data[] = {
+ { rts_debugbreak, 0, "__debugbreak", 0, _MS },
+ { rts_abort, 0, "abort", 0, _C89 },
+ { rts_abs, 1, "abs", 1, _C89 },
+ { rts_labs, 1, "labs", 1, _C89 },
+ { rts_llabs, 1, "llabs", 1, _C99 },
+ { rts_imaxabs, 1, "imaxabs", 1, _C99 },
+
+ { rts_fabs, 1, "fabs", 1, _C89 },
+ { rts_sqrt, 1, "sqrt", 1, _C89 },
+ { rts_cbrt, 1, "cbrt", 1, _C99 },
+ { rts_exp, 1, "exp", 1, _C89 },
+ { rts_exp2, 1, "exp2", 1, _C89 },
+ { rts_exp10, 1, "exp10", 1, _GNUC },
+ { rts_log, 1, "log", 1, _C89 },
+ { rts_log2, 1, "log2", 1, _C89 },
+ { rts_log10, 1, "log10", 1, _C89 },
+ { rts_pow, 1, "pow", 2, _C89 },
+ { rts_sin, 1, "sin", 1, _C89 },
+ { rts_cos, 1, "cos", 1, _C89 },
+ { rts_tan, 1, "tan", 1, _C89 },
+ { rts_asin, 1, "asin", 1, _C89 },
+ { rts_acos, 1, "acos", 1, _C89 },
+ { rts_atan, 1, "atan", 1, _C89 },
+ { rts_sinh, 1, "sinh", 1, _C89 },
+ { rts_cosh, 1, "cosh", 1, _C89 },
+ { rts_tanh, 1, "tanh", 1, _C89 },
+
+ { rts_fabsf, 1, "fabsf", 1, _C99 },
+ { rts_sqrtf, 1, "sqrtf", 1, _C99 },
+ { rts_cbrtf, 1, "cbrtf", 1, _C99 },
+ { rts_expf, 1, "expf", 1, _C99 },
+ { rts_exp2f, 1, "exp2f", 1, _C99 },
+ { rts_exp10f, 1, "exp10f", 1, _GNUC },
+ { rts_logf, 1, "logf", 1, _C99 },
+ { rts_log2f, 1, "log2f", 1, _C99 },
+ { rts_log10f, 1, "log10f", 1, _C99 },
+ { rts_powf, 1, "powf", 2, _C99 },
+ { rts_sinf, 1, "sinf", 1, _C99 },
+ { rts_cosf, 1, "cosf", 1, _C99 },
+ { rts_tanf, 1, "tanf", 1, _C99 },
+ { rts_asinf, 1, "asinf", 1, _C99 },
+ { rts_acosf, 1, "acosf", 1, _C99 },
+ { rts_atanf, 1, "atanf", 1, _C99 },
+ { rts_sinhf, 1, "sinhf", 1, _C99 },
+ { rts_coshf, 1, "coshf", 1, _C99 },
+ { rts_tanhf, 1, "tanhf", 1, _C99 },
+
+ { rts_fabsl, 1, "fabsl", 1, _C99 },
+ { rts_sqrtl, 1, "sqrtl", 1, _C99 },
+ { rts_cbrtl, 1, "cbrtl", 1, _C99 },
+ { rts_expl, 1, "expl", 1, _C99 },
+ { rts_exp2l, 1, "exp2l", 1, _C99 },
+ { rts_exp10l, 1, "exp10l", 1, _GNUC },
+ { rts_logl, 1, "logl", 1, _C99 },
+ { rts_log2l, 1, "log2l", 1, _C99 },
+ { rts_log10l, 1, "log10l", 1, _C99 },
+ { rts_powl, 1, "powl", 2, _C99 },
+ { rts_sinl, 1, "sinl", 1, _C99 },
+ { rts_cosl, 1, "cosl", 1, _C99 },
+ { rts_tanl, 1, "tanl", 1, _C99 },
+ { rts_asinl, 1, "asinl", 1, _C99 },
+ { rts_acosl, 1, "acosl", 1, _C99 },
+ { rts_atanl, 1, "atanl", 1, _C99 },
+ { rts_sinhl, 1, "sinhl", 1, _C99 },
+ { rts_coshl, 1, "coshl", 1, _C99 },
+ { rts_tanhl, 1, "tanhl", 1, _C99 },
+
+ { rts_memcpy, 1, "memcpy", 3, _C89 }, /* HMM, man say its C99 */
+ { rts_memset, 1, "memset", 3, _C89 }, /* HMM, man say its C99 */
+ { rts_strcmp, 1, "strcmp", 2, _C89 },
+ { rts_strncmp, 1, "strncmp", 3, _C89 }
+};
+
static ir_entity* get_function_entity(declaration_t *declaration)
{
- if(declaration->declaration_type == DECLARATION_TYPE_FUNCTION)
+ if(declaration->declaration_kind == DECLARATION_KIND_FUNCTION)
return declaration->v.entity;
- assert(declaration->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ assert(declaration->declaration_kind == DECLARATION_KIND_UNKNOWN);
symbol_t *symbol = declaration->symbol;
ident *id = new_id_from_str(symbol->string);
ir_type *ir_type_method = get_ir_type(declaration->type);
assert(is_Method_type(ir_type_method));
- ir_entity *entity = new_entity(global_type, id, ir_type_method);
+ dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
+ ir_entity *const entity = new_d_entity(global_type, id, ir_type_method, dbgi);
set_entity_ld_ident(entity, id);
if(declaration->storage_class == STORAGE_CLASS_STATIC
|| declaration->is_inline) {
set_entity_visibility(entity, visibility_external_visible);
} else {
set_entity_visibility(entity, visibility_external_allocated);
+
+ /* We should check for file scope here, but as long as we compile C only
+ this is not needed. */
+ int n_params = get_method_n_params(ir_type_method);
+ int n_res = get_method_n_ress(ir_type_method);
+ int i;
+
+ if (n_params == 0 && n_res == 0 && id == predef_idents[rts_abort]) {
+ /* found abort(), store for later */
+ //abort_ent = ent;
+ //abort_tp = ftype;
+ } else {
+ if (! firm_opt.freestanding) {
+ /* check for a known runtime function */
+ for (i = 0; i < rts_max; ++i) {
+ /* ignore those rts functions not necessary needed for current mode */
+ if ((c_mode & rts_data[i].flags) == 0)
+ continue;
+ if (n_params == rts_data[i].n_params && n_res == rts_data[i].n_res &&
+ id == predef_idents[rts_data[i].id])
+ rts_entities[rts_data[i].id] = entity;
+ }
+ }
+ }
}
+ set_entity_allocation(entity, allocation_static);
- declaration->declaration_type = DECLARATION_TYPE_FUNCTION;
+ declaration->declaration_kind = DECLARATION_KIND_FUNCTION;
declaration->v.entity = entity;
return entity;
}
-static dbg_info *get_dbg_info(const source_position_t *pos)
-{
- return (dbg_info*) pos;
-}
-
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);
+ dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
+ ir_mode *mode = get_ir_mode(cnst->base.type);
char buf[128];
tarval *tv;
return new_d_Const(dbgi, mode, tv);
}
-static ir_node *create_symconst(dbg_info *dbgi, ir_entity *entity)
+static ir_node *character_constant_to_firm(const const_expression_t *cnst)
+{
+ dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
+ ir_mode *mode = get_ir_mode(cnst->base.type);
+
+ long long int v = 0;
+ for (size_t i = 0; i < cnst->v.character.size; ++i) {
+ v = (v << 8) | ((unsigned char)cnst->v.character.begin[i]);
+ }
+ char buf[128];
+ size_t len = snprintf(buf, sizeof(buf), "%lld", v);
+ tarval *tv = new_tarval_from_str(buf, len, mode);
+
+ return new_d_Const(dbgi, mode, tv);
+}
+
+static ir_node *wide_character_constant_to_firm(const const_expression_t *cnst)
+{
+ dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
+ ir_mode *mode = get_ir_mode(cnst->base.type);
+
+ long long int v = cnst->v.wide_character.begin[0];
+
+ char buf[128];
+ size_t len = snprintf(buf, sizeof(buf), "%lld", v);
+ tarval *tv = new_tarval_from_str(buf, len, mode);
+
+ return new_d_Const(dbgi, mode, tv);
+}
+
+static ir_node *create_symconst(dbg_info *dbgi, ir_mode *mode,
+ ir_entity *entity)
{
assert(entity != NULL);
union symconst_symbol sym;
sym.entity_p = entity;
- return new_d_SymConst(dbgi, sym, symconst_addr_ent);
+ return new_d_SymConst(dbgi, mode, sym, symconst_addr_ent);
}
static ir_node *string_to_firm(const source_position_t *const src_pos,
const char *const id_prefix,
- const char *const string)
+ const string_t *const value)
{
- ir_type *const global_type = get_glob_type();
- ir_type *const type = new_type_array(unique_ident("strtype"), 1,
- ir_type_const_char);
+ ir_type *const global_type = get_glob_type();
+ dbg_info *const dbgi = get_dbg_info(src_pos);
+ ir_type *const type = new_d_type_array(unique_ident("strtype"), 1,
+ ir_type_const_char, dbgi);
ident *const id = unique_ident(id_prefix);
- ir_entity *const entity = new_entity(global_type, id, type);
+ ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
set_entity_ld_ident(entity, id);
set_entity_variability(entity, variability_constant);
+ set_entity_allocation(entity, allocation_static);
ir_type *const elem_type = ir_type_const_char;
ir_mode *const mode = get_type_mode(elem_type);
- const size_t slen = strlen(string) + 1;
+ const char* const string = value->begin;
+ const size_t slen = value->size;
set_array_lower_bound_int(type, 0, 0);
set_array_upper_bound_int(type, 0, slen);
set_array_entity_values(entity, tvs, slen);
free(tvs);
- dbg_info *const dbgi = get_dbg_info(src_pos);
-
- return create_symconst(dbgi, entity);
+ return create_symconst(dbgi, mode_P_data, entity);
}
static ir_node *string_literal_to_firm(
const string_literal_expression_t* literal)
{
- return string_to_firm(&literal->expression.source_position, "Lstr",
- literal->value);
+ return string_to_firm(&literal->base.source_position, "Lstr",
+ &literal->value);
}
static ir_node *wide_string_literal_to_firm(
{
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);
+ dbg_info *const dbgi = get_dbg_info(&literal->base.source_position);
+ ir_type *const type = new_d_type_array(unique_ident("strtype"), 1,
+ elem_type, dbgi);
ident *const id = unique_ident("Lstr");
- ir_entity *const entity = new_entity(global_type, id, type);
+ ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
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);
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);
+ return create_symconst(dbgi, mode_P_data, entity);
}
-static ir_node *deref_address(ir_type *const irtype, ir_node *const addr,
+static ir_node *deref_address(type_t *const type, ir_node *const addr,
dbg_info *const dbgi)
{
- if(is_compound_type(irtype) || is_Array_type(irtype)) {
+ ir_type *irtype = get_ir_type(type);
+ if (is_compound_type(irtype)
+ || is_Method_type(irtype)
+ || is_Array_type(irtype)) {
return addr;
}
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);
+
+ if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ set_Load_volatility(load, volatility_is_volatile);
+ }
+
set_store(load_mem);
return load_res;
}
static ir_node *get_global_var_address(dbg_info *const dbgi,
const declaration_t *const decl)
{
- assert(decl->declaration_type == DECLARATION_TYPE_GLOBAL_VARIABLE);
+ assert(decl->declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE);
ir_entity *const entity = decl->v.entity;
switch ((storage_class_tag_t)decl->storage_class) {
}
default:
- return create_symconst(dbgi, entity);
+ return create_symconst(dbgi, mode_P_data, entity);
+ }
+}
+
+/* Returns the correct base address depending on whether it is a parameter or a
+ * normal local variable */
+static ir_node *get_local_frame(ir_entity *const ent)
+{
+ ir_graph *const irg = current_ir_graph;
+ const ir_type *const owner = get_entity_owner(ent);
+ if (owner == get_irg_frame_type(irg)) {
+ return get_irg_frame(irg);
+ } else {
+ assert(owner == get_method_value_param_type(get_entity_type(get_irg_entity(irg))));
+ return get_irg_value_param_base(irg);
}
}
static ir_node *reference_expression_to_firm(const reference_expression_t *ref)
{
- dbg_info *dbgi = get_dbg_info(&ref->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&ref->base.source_position);
declaration_t *declaration = ref->declaration;
type_t *type = skip_typeref(declaration->type);
- switch((declaration_type_t) declaration->declaration_type) {
- case DECLARATION_TYPE_UNKNOWN:
+ switch((declaration_kind_t) declaration->declaration_kind) {
+ case DECLARATION_KIND_UNKNOWN:
if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY) {
break;
}
get_ir_type(type);
/* FALLTHROUGH */
- case DECLARATION_TYPE_ENUM_ENTRY: {
+ case DECLARATION_KIND_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);
+ case DECLARATION_KIND_LOCAL_VARIABLE: {
+ ir_mode *const 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_KIND_FUNCTION: {
+ ir_mode *const mode = get_ir_mode(type);
+ return create_symconst(dbgi, mode, declaration->v.entity);
}
- case DECLARATION_TYPE_GLOBAL_VARIABLE: {
+ case DECLARATION_KIND_GLOBAL_VARIABLE: {
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);
+ return deref_address(declaration->type, addr, dbgi);
}
- case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY: {
+ case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
ir_entity *entity = declaration->v.entity;
- ir_node *frame = get_irg_frame(current_ir_graph);
+ ir_node *frame = get_local_frame(entity);
ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
- ir_type *irtype = get_entity_type(entity);
- return deref_address(irtype, sel, dbgi);
+ return deref_address(declaration->type, sel, dbgi);
}
- case DECLARATION_TYPE_COMPOUND_MEMBER:
- case DECLARATION_TYPE_LABEL_BLOCK:
+ case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
+ return declaration->v.vla_base;
+
+ case DECLARATION_KIND_COMPOUND_MEMBER:
+ case DECLARATION_KIND_LABEL_BLOCK:
panic("not implemented reference type");
}
static ir_node *reference_addr(const reference_expression_t *ref)
{
- dbg_info *dbgi = get_dbg_info(&ref->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&ref->base.source_position);
declaration_t *declaration = ref->declaration;
- switch((declaration_type_t) declaration->declaration_type) {
- case DECLARATION_TYPE_UNKNOWN:
+ switch((declaration_kind_t) declaration->declaration_kind) {
+ case DECLARATION_KIND_UNKNOWN:
break;
- case DECLARATION_TYPE_LOCAL_VARIABLE:
+ case DECLARATION_KIND_LOCAL_VARIABLE:
panic("local variable without entity has no address");
- case DECLARATION_TYPE_FUNCTION: {
- return create_symconst(dbgi, declaration->v.entity);
+ case DECLARATION_KIND_FUNCTION: {
+ type_t *const type = skip_typeref(ref->base.type);
+ ir_mode *const mode = get_ir_mode(type);
+ return create_symconst(dbgi, mode, declaration->v.entity);
}
- case DECLARATION_TYPE_GLOBAL_VARIABLE: {
+ case DECLARATION_KIND_GLOBAL_VARIABLE: {
ir_node *const addr = get_global_var_address(dbgi, declaration);
return addr;
}
- case DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY: {
+ case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
ir_entity *entity = declaration->v.entity;
- ir_node *frame = get_irg_frame(current_ir_graph);
+ ir_node *frame = get_local_frame(entity);
ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
return sel;
}
- case DECLARATION_TYPE_ENUM_ENTRY:
+ case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
+ return declaration->v.vla_base;
+
+ case DECLARATION_KIND_ENUM_ENTRY:
panic("trying to reference enum entry");
- case DECLARATION_TYPE_COMPOUND_MEMBER:
- case DECLARATION_TYPE_LABEL_BLOCK:
+ case DECLARATION_KIND_COMPOUND_MEMBER:
+ case DECLARATION_KIND_LABEL_BLOCK:
panic("not implemented reference type");
}
static ir_node *process_builtin_call(const call_expression_t *call)
{
- dbg_info *dbgi = get_dbg_info(&call->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&call->base.source_position);
- assert(call->function->type == EXPR_BUILTIN_SYMBOL);
+ assert(call->function->kind == EXPR_BUILTIN_SYMBOL);
builtin_symbol_expression_t *builtin = &call->function->builtin_symbol;
- type_t *type = skip_typeref(builtin->expression.datatype);
+ type_t *type = skip_typeref(builtin->base.type);
assert(is_type_pointer(type));
type_t *function_type = skip_typeref(type->pointer.points_to);
assert(get_cur_block() != NULL);
expression_t *function = call->function;
- if(function->type == EXPR_BUILTIN_SYMBOL) {
+ if(function->kind == EXPR_BUILTIN_SYMBOL) {
return process_builtin_call(call);
}
ir_node *callee = expression_to_firm(function);
- type_t *type = skip_typeref(function->base.datatype);
+ type_t *type = skip_typeref(function->base.type);
assert(is_type_pointer(type));
pointer_type_t *pointer_type = &type->pointer;
type_t *points_to = skip_typeref(pointer_type->points_to);
++n_parameters;
}
- dbg_info *dbgi = get_dbg_info(&call->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&call->base.source_position);
ir_type *ir_method_type = get_ir_type((type_t*) function_type);
ir_type *new_method_type = NULL;
/* we need to construct a new method type matching the call
* arguments... */
int n_res = get_method_n_ress(ir_method_type);
- new_method_type = new_type_method(unique_ident("calltype"),
- n_parameters, n_res);
+ dbg_info *dbgi = get_dbg_info(&call->base.source_position);
+ new_method_type = new_d_type_method(unique_ident("calltype"),
+ n_parameters, n_res, dbgi);
set_method_calling_convention(new_method_type,
get_method_calling_convention(ir_method_type));
set_method_additional_properties(new_method_type,
in[n] = arg_node;
if(new_method_type != NULL) {
- ir_type *irtype = get_ir_type(expression->base.datatype);
+ ir_type *irtype = get_ir_type(expression->base.type);
set_method_param_type(new_method_type, n, irtype);
}
{
value = do_strict_conv(dbgi, value);
- ir_node *memory = get_store();
+ 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);
+ if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE)
+ set_Store_volatility(store, volatility_is_volatile);
set_store(store_mem);
} else {
ir_type *irtype = get_ir_type(type);
}
}
+static tarval *create_bitfield_mask(ir_mode *mode, int offset, int size)
+{
+ tarval *all_one = get_mode_all_one(mode);
+ int mode_size = get_mode_size_bits(mode);
+
+ assert(offset >= 0 && size >= 0);
+ assert(offset + size <= mode_size);
+ if(size == mode_size) {
+ return all_one;
+ }
+
+ long shiftr = get_mode_size_bits(mode) - size;
+ long shiftl = offset;
+ tarval *tv_shiftr = new_tarval_from_long(shiftr, mode_uint);
+ tarval *tv_shiftl = new_tarval_from_long(shiftl, mode_uint);
+ tarval *mask0 = tarval_shr(all_one, tv_shiftr);
+ tarval *mask1 = tarval_shl(mask0, tv_shiftl);
+
+ return mask1;
+}
+
+static void bitfield_store_to_firm(const unary_expression_t *expression,
+ ir_node *value)
+{
+ expression_t *select = expression->value;
+ assert(select->kind == EXPR_SELECT);
+ type_t *type = select->base.type;
+ assert(type->kind == TYPE_BITFIELD);
+ ir_mode *mode = get_ir_mode(type->bitfield.base);
+ ir_node *addr = expression_to_addr(select);
+
+ assert(get_irn_mode(value) == mode);
+
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+
+ /* kill upper bits of value and shift to right position */
+ ir_entity *entity = select->select.compound_entry->v.entity;
+ int bitoffset = get_entity_offset_bits_remainder(entity);
+ ir_type *entity_type = get_entity_type(entity);
+ int bitsize = get_mode_size_bits(get_type_mode(entity_type));
+
+ tarval *mask = create_bitfield_mask(mode, 0, bitsize);
+ ir_node *mask_node = new_d_Const(dbgi, mode, mask);
+ ir_node *value_masked = new_d_And(dbgi, value, mask_node, mode);
+ tarval *shiftl = new_tarval_from_long(bitoffset, mode_uint);
+ ir_node *shiftcount = new_d_Const(dbgi, mode_uint, shiftl);
+ ir_node *value_maskshift = new_d_Shl(dbgi, value_masked, shiftcount, mode);
+
+ /* load current value */
+ ir_node *mem = get_store();
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode);
+ ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
+ ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
+ tarval *shift_mask = create_bitfield_mask(mode, bitoffset, bitsize);
+ tarval *inv_mask = tarval_not(shift_mask);
+ ir_node *inv_mask_node = new_d_Const(dbgi, mode, inv_mask);
+ ir_node *load_res_masked = new_d_And(dbgi, load_res, inv_mask_node, mode);
+
+ /* construct new value and store */
+ ir_node *new_val = new_d_Or(dbgi, load_res_masked, value_maskshift, mode);
+ ir_node *store = new_d_Store(dbgi, load_mem, addr, new_val);
+ ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
+ set_store(store_mem);
+
+ if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ set_Load_volatility(load, volatility_is_volatile);
+ set_Store_volatility(store, volatility_is_volatile);
+ }
+}
+
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;
+ if(expression->kind == EXPR_REFERENCE) {
+ const reference_expression_t *ref = &expression->reference;
declaration_t *declaration = ref->declaration;
- assert(declaration->declaration_type != DECLARATION_TYPE_UNKNOWN);
- if(declaration->declaration_type == DECLARATION_TYPE_LOCAL_VARIABLE) {
+ assert(declaration->declaration_kind != DECLARATION_KIND_UNKNOWN);
+ if(declaration->declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
set_value(declaration->v.value_number, value);
return;
}
}
+ if(expression->kind == EXPR_UNARY_BITFIELD_EXTRACT) {
+ bitfield_store_to_firm(&expression->unary, value);
+ return;
+ }
+
ir_node *addr = expression_to_addr(expression);
- type_t *type = skip_typeref(expression->base.datatype);
+ type_t *type = skip_typeref(expression->base.type);
assign_value(dbgi, addr, type, value);
}
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);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *type = skip_typeref(expression->base.type);
ir_mode *mode = get_ir_mode(type);
expression_t *value = expression->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);
+ offset = get_type_size(pointer_type->points_to);
} else {
assert(is_type_arithmetic(type));
offset = new_Const(mode, get_mode_one(mode));
}
- switch(expression->type) {
- case UNEXPR_POSTFIX_INCREMENT: {
+ switch(expression->base.kind) {
+ 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 UNEXPR_POSTFIX_DECREMENT: {
+ 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 UNEXPR_PREFIX_INCREMENT: {
+ 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 UNEXPR_PREFIX_DECREMENT: {
+ 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;
}
}
-static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
+static bool is_local_variable(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);
-
- if(expression->type == UNEXPR_TAKE_ADDRESS)
- return expression_to_addr(expression->value);
+ if (expression->kind != EXPR_REFERENCE)
+ return false;
+ reference_expression_t *ref_expr = &expression->reference;
+ declaration_t *declaration = ref_expr->declaration;
+ return declaration->declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE;
+}
- const expression_t *value = expression->value;
- ir_node *value_node = expression_to_firm(value);
+static pn_Cmp get_pnc(const expression_kind_t kind, type_t *const type)
+{
+ switch(kind) {
+ case EXPR_BINARY_EQUAL: return pn_Cmp_Eq;
+ case EXPR_BINARY_ISLESSGREATER: return pn_Cmp_Lg;
+ case EXPR_BINARY_NOTEQUAL:
+ return is_type_float(skip_typeref(type)) ? pn_Cmp_Ne : pn_Cmp_Lg;
+ case EXPR_BINARY_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;
- switch(expression->type) {
- case UNEXPR_NEGATE:
- return new_d_Minus(dbgi, value_node, mode);
- case UNEXPR_PLUS:
- return value_node;
- case UNEXPR_BITWISE_NEGATE:
- return new_d_Not(dbgi, value_node, mode);
- case UNEXPR_NOT: {
- if(get_irn_mode(value_node) != mode_b) {
- value_node = create_conv(dbgi, value_node, mode_b);
- }
- value_node = new_d_Not(dbgi, value_node, mode_b);
- if(mode != mode_b) {
- value_node = create_conv(dbgi, value_node, mode);
- }
- return value_node;
+ default:
+ break;
}
- case UNEXPR_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);
+ panic("trying to get pn_Cmp from non-comparison binexpr type");
+}
+
+/**
+ * Handle the assume optimizer hint: check if a Confirm
+ * node can be created.
+ *
+ * @param dbi debug info
+ * @param expr the IL assume expression
+ *
+ * we support here only some simple cases:
+ * - var rel const
+ * - const rel val
+ * - var rel var
+ */
+static ir_node *handle_assume_compare(dbg_info *dbi,
+ const binary_expression_t *expression)
+{
+ expression_t *op1 = expression->left;
+ expression_t *op2 = expression->right;
+ declaration_t *var2, *var = NULL;
+ ir_node *res = NULL;
+ pn_Cmp cmp_val;
+
+ cmp_val = get_pnc(expression->base.kind, op1->base.type);
+
+ if (is_local_variable(op1) && is_local_variable(op2)) {
+ var = op1->reference.declaration;
+ var2 = op2->reference.declaration;
+
+ type_t *const type = skip_typeref(var->type);
+ ir_mode *const mode = get_ir_mode(type);
+
+ ir_node *const irn1 = get_value(var->v.value_number, mode);
+ ir_node *const irn2 = get_value(var2->v.value_number, mode);
+
+ res = new_d_Confirm(dbi, irn2, irn1, get_inversed_pnc(cmp_val));
+ set_value(var2->v.value_number, res);
+
+ res = new_d_Confirm(dbi, irn1, irn2, cmp_val);
+ set_value(var->v.value_number, res);
+
+ return res;
}
- case UNEXPR_POSTFIX_INCREMENT:
- case UNEXPR_POSTFIX_DECREMENT:
- case UNEXPR_PREFIX_INCREMENT:
- case UNEXPR_PREFIX_DECREMENT:
- return create_incdec(expression);
- case UNEXPR_CAST: {
- ir_node *node = create_conv(dbgi, value_node, get_ir_mode(type));
- node = do_strict_conv(dbgi, node);
- return node;
+
+ expression_t *con;
+ if (is_local_variable(op1) && is_constant_expression(op2)) {
+ var = op1->reference.declaration;
+ con = op2;
+ } else if (is_constant_expression(op1) && is_local_variable(op2)) {
+ cmp_val = get_inversed_pnc(cmp_val);
+ var = op2->reference.declaration;
+ con = op1;
}
- case UNEXPR_CAST_IMPLICIT:
- return create_conv(dbgi, value_node, get_ir_mode(type));
- case UNEXPR_TAKE_ADDRESS:
- case UNEXPR_INVALID:
- break;
+ if (var != NULL) {
+ type_t *const type = skip_typeref(var->type);
+ ir_mode *const mode = get_ir_mode(type);
+
+ res = get_value(var->v.value_number, mode);
+ res = new_d_Confirm(dbi, res, expression_to_firm(con), cmp_val);
+ set_value(var->v.value_number, res);
}
- panic("invalid UNEXPR type found");
+ return res;
+}
+
+/**
+ * Handle the assume optimizer hint.
+ *
+ * @param dbi debug info
+ * @param expr the IL assume expression
+ */
+static ir_node *handle_assume(dbg_info *dbi, const expression_t *expression) {
+ switch(expression->kind) {
+ case EXPR_BINARY_EQUAL:
+ case EXPR_BINARY_NOTEQUAL:
+ case EXPR_BINARY_LESS:
+ case EXPR_BINARY_LESSEQUAL:
+ case EXPR_BINARY_GREATER:
+ case EXPR_BINARY_GREATEREQUAL:
+ return handle_assume_compare(dbi, &expression->binary);
+ default:
+ return NULL;
+ }
+}
+
+static ir_node *bitfield_extract_to_firm(const unary_expression_t *expression)
+{
+ expression_t *select = expression->value;
+ assert(select->kind == EXPR_SELECT);
+
+ type_t *type = select->base.type;
+ assert(type->kind == TYPE_BITFIELD);
+ ir_mode *mode = get_ir_mode(type->bitfield.base);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_node *addr = expression_to_addr(select);
+ ir_node *mem = get_store();
+ ir_node *load = new_d_Load(dbgi, mem, 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);
+
+ load_res = create_conv(dbgi, load_res, mode_int);
+
+ set_store(load_mem);
+
+ /* kill upper bits */
+ ir_entity *entity = select->select.compound_entry->v.entity;
+ int bitoffset = get_entity_offset_bits_remainder(entity);
+ ir_type *entity_type = get_entity_type(entity);
+ int bitsize = get_mode_size_bits(get_type_mode(entity_type));
+ long shift_bitsl = machine_size - bitoffset - bitsize;
+ assert(shift_bitsl >= 0);
+ tarval *tvl = new_tarval_from_long(shift_bitsl, mode_uint);
+ ir_node *countl = new_d_Const(dbgi, mode_uint, tvl);
+ ir_node *shiftl = new_d_Shl(dbgi, load_res, countl, mode_int);
+
+ long shift_bitsr = bitoffset + shift_bitsl;
+ assert(shift_bitsr <= (long) machine_size);
+ tarval *tvr = new_tarval_from_long(shift_bitsr, mode_uint);
+ ir_node *countr = new_d_Const(dbgi, mode_uint, tvr);
+ ir_node *shiftr;
+ if(mode_is_signed(mode)) {
+ shiftr = new_d_Shrs(dbgi, shiftl, countr, mode_int);
+ } else {
+ shiftr = new_d_Shr(dbgi, shiftl, countr, mode_int);
+ }
+
+ return create_conv(dbgi, shiftr, mode);
}
-static long get_pnc(binary_expression_type_t type)
+static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
{
- 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;
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *type = skip_typeref(expression->base.type);
+
+ if(expression->base.kind == EXPR_UNARY_TAKE_ADDRESS)
+ return expression_to_addr(expression->value);
+
+ const expression_t *value = expression->value;
+
+ switch(expression->base.kind) {
+ case EXPR_UNARY_NEGATE: {
+ ir_node *value_node = expression_to_firm(value);
+ ir_mode *mode = get_ir_mode(type);
+ return new_d_Minus(dbgi, value_node, mode);
+ }
+ case EXPR_UNARY_PLUS:
+ return expression_to_firm(value);
+ case EXPR_UNARY_BITWISE_NEGATE: {
+ ir_node *value_node = expression_to_firm(value);
+ ir_mode *mode = get_ir_mode(type);
+ return new_d_Not(dbgi, value_node, mode);
+ }
+ case EXPR_UNARY_NOT: {
+ ir_node *value_node = expression_to_firm(value);
+ ir_mode *mode = get_ir_mode(type);
+ if(get_irn_mode(value_node) != mode_b) {
+ value_node = create_conv(dbgi, value_node, mode_b);
+ }
+ value_node = new_d_Not(dbgi, value_node, mode_b);
+ if(mode != mode_b) {
+ value_node = create_conv(dbgi, value_node, mode);
+ }
+ return value_node;
+ }
+ case EXPR_UNARY_DEREFERENCE: {
+ ir_node *value_node = expression_to_firm(value);
+ type_t *value_type = skip_typeref(value->base.type);
+ assert(is_type_pointer(value_type));
+ type_t *points_to = value_type->pointer.points_to;
+ 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 *value_node = expression_to_firm(value);
+ if(is_type_scalar(type)) {
+ ir_mode *mode = get_ir_mode(type);
+ ir_node *node = create_conv(dbgi, value_node, mode);
+ node = do_strict_conv(dbgi, node);
+ return node;
+ } else {
+ /* make sure firm type is constructed */
+ (void) get_ir_type(type);
+ return value_node;
+ }
+ }
+ case EXPR_UNARY_CAST_IMPLICIT: {
+ ir_node *value_node = expression_to_firm(value);
+ if(is_type_scalar(type)) {
+ ir_mode *mode = get_ir_mode(type);
+ return create_conv(dbgi, value_node, mode);
+ } else {
+ return value_node;
+ }
+ }
+ case EXPR_UNARY_ASSUME:
+ if(firm_opt.confirm)
+ return handle_assume(dbgi, value);
+ else
+ return NULL;
+ case EXPR_UNARY_BITFIELD_EXTRACT:
+ return bitfield_extract_to_firm(expression);
+
default:
break;
}
- panic("trying to get pn_Cmp from non-comparison binexpr type");
+ panic("invalid UNEXPR type found");
}
-static ir_node *create_lazy_op(const binary_expression_t *expression)
+static ir_node *produce_condition_result(const expression_t *expression,
+ dbg_info *dbgi)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
- type_t *type = expression->expression.datatype;
- ir_mode *mode = get_ir_mode(type);
-
+ ir_mode *mode = get_ir_mode(expression->base.type);
ir_node *cur_block = get_cur_block();
ir_node *one_block = new_immBlock();
ir_node *jmp_zero = new_d_Jmp(dbgi);
set_cur_block(cur_block);
- create_condition_evaluation((const expression_t*) expression,
- one_block, zero_block);
+ create_condition_evaluation(expression, one_block, zero_block);
mature_immBlock(one_block);
mature_immBlock(zero_block);
return val;
}
+static ir_node *create_lazy_op(const binary_expression_t *expression)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *type = expression->base.type;
+ ir_mode *mode = get_ir_mode(type);
+
+ if(is_constant_expression(expression->left)) {
+ long val = fold_constant(expression->left);
+ expression_kind_t ekind = expression->base.kind;
+ if((ekind == EXPR_BINARY_LOGICAL_AND && val != 0)
+ || (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) {
+ return expression_to_firm(expression->right);
+ } else {
+ assert((ekind == EXPR_BINARY_LOGICAL_AND && val == 0)
+ || (ekind == EXPR_BINARY_LOGICAL_OR && val != 0));
+ return new_Const(mode, get_mode_one(mode));
+ }
+ }
+
+ return produce_condition_result((const expression_t*) expression, dbgi);
+}
+
typedef ir_node * (*create_arithmetic_func)(dbg_info *dbgi, ir_node *left,
ir_node *right, ir_mode *mode);
static ir_node *create_arithmetic_binop(const binary_expression_t *expression,
create_arithmetic_func func)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->right->base.datatype;
+ type_t *type = expression->right->base.type;
/* 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);
dbg_info *const dbgi,
const create_arithmetic_func func)
{
- pointer_type_t *const pointer_type = (pointer_type_t*)type;
+ pointer_type_t *const pointer_type = &type->pointer;
type_t *const points_to = pointer_type->points_to;
- const unsigned elem_size = get_type_size(points_to);
+ const unsigned elem_size = get_type_size_const(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 = create_conv(dbgi, integer, mode_int);
+ ir_node *const cnst = new_Const_long(mode_int, (long)elem_size);
+ ir_node *const mul = new_d_Mul(dbgi, integer, cnst, mode_int);
integer = mul;
}
static ir_node *create_arithmetic_assign_binop(
const binary_expression_t *expression, create_arithmetic_func func)
{
- dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
- type_t *const type = skip_typeref(expression->expression.datatype);
+ dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *const type = skip_typeref(expression->base.type);
ir_node *value;
if (is_type_pointer(type)) {
- ir_node *const pointer = expression_to_firm(expression->left);
- ir_node * integer = expression_to_firm(expression->right);
+ 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);
+ ir_mode *const mode = get_ir_mode(type);
value = create_conv(dbgi, value, mode);
set_value_for_expression(expression->left, value);
static ir_node *create_add(const binary_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->expression.datatype;
+ type_t *type = expression->base.type;
expression_t *expr_left = expression->left;
expression_t *expr_right = expression->right;
- type_t *type_left = skip_typeref(expr_left->base.datatype);
- type_t *type_right = skip_typeref(expr_right->base.datatype);
+ type_t *type_left = skip_typeref(expr_left->base.type);
+ type_t *type_right = skip_typeref(expr_right->base.type);
if(is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) {
ir_mode *const mode = get_ir_mode(type);
static ir_node *create_sub(const binary_expression_t *expression)
{
- dbg_info *const dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *const dbgi = get_dbg_info(&expression->base.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);
+ type_t *const type = expression->base.type;
+ type_t *const type_left = skip_typeref(expr_left->base.type);
+ type_t *const type_right = skip_typeref(expr_right->base.type);
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);
+
+ ir_node *const elem_size = get_type_size(ptr_type->points_to);
+ ir_mode *const mode = get_ir_mode(type);
+ ir_node *const conv_size = new_d_Conv(dbgi, elem_size, mode);
+ ir_node *const sub = new_d_Sub(dbgi, left, right, mode);
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const div = new_d_DivRL(dbgi, no_mem, sub, conv_size, mode,
+ op_pin_state_floats);
return new_d_Proj(dbgi, div, mode, pn_Div_res);
}
static ir_node *create_shift(const binary_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->expression.datatype;
+ type_t *type = expression->base.type;
ir_mode *mode = get_ir_mode(type);
/* firm always wants the shift count to be unsigned */
- right = create_conv(dbgi, right, mode_Iu);
+ right = create_conv(dbgi, right, mode_uint);
ir_node *res;
- switch(expression->type) {
- case BINEXPR_SHIFTLEFT_ASSIGN:
- case BINEXPR_SHIFTLEFT:
+ switch(expression->base.kind) {
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+ case EXPR_BINARY_SHIFTLEFT:
res = new_d_Shl(dbgi, left, right, mode);
break;
- case BINEXPR_SHIFTRIGHT_ASSIGN:
- case BINEXPR_SHIFTRIGHT: {
+ 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);
+ type_t *type_left = skip_typeref(expr_left->base.type);
if(is_type_signed(type_left)) {
res = new_d_Shrs(dbgi, left, right, mode);
static ir_node *create_divmod(const binary_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
ir_node *pin = new_Pin(new_NoMem());
/* 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;
+ type_t *type = expression->right->base.type;
ir_mode *mode = get_ir_mode(type);
left = create_conv(dbgi, left, mode);
ir_node *op;
ir_node *res;
- switch (expression->type) {
- case BINEXPR_DIV:
- case BINEXPR_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);
- } else {
- op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats);
- res = new_d_Proj(dbgi, op, mode, pn_Div_res);
- }
- break;
+ switch (expression->base.kind) {
+ 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);
+ } else {
+ op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats);
+ res = new_d_Proj(dbgi, op, mode, pn_Div_res);
+ }
+ break;
- case BINEXPR_MOD:
- case BINEXPR_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;
+ 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()");
+ default: panic("unexpected binary expression type in create_divmod()");
}
return res;
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;
+ dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *const type = expression->base.type;
ir_mode *const mode = get_ir_mode(type);
- assert(type->type != TYPE_POINTER);
+ assert(type->kind != TYPE_POINTER);
value = create_conv(dbgi, value, mode);
set_value_for_expression(expression->left, value);
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;
+ dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *const type = expression->base.type;
ir_mode *const mode = get_ir_mode(type);
value = create_conv(dbgi, value, mode);
static ir_node *binary_expression_to_firm(const binary_expression_t *expression)
{
- binary_expression_type_t type = expression->type;
- switch(type) {
- case BINEXPR_EQUAL:
- case BINEXPR_NOTEQUAL:
- case BINEXPR_LESS:
- case BINEXPR_LESSEQUAL:
- case BINEXPR_GREATER:
- case BINEXPR_GREATEREQUAL: {
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ expression_kind_t kind = expression->base.kind;
+
+ switch(kind) {
+ 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->base.source_position);
ir_node *left = expression_to_firm(expression->left);
ir_node *right = expression_to_firm(expression->right);
ir_node *cmp = new_d_Cmp(dbgi, left, right);
- long pnc = get_pnc(type);
+ long pnc = get_pnc(kind, expression->left->base.type);
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:
- case BINEXPR_SHIFTRIGHT:
+ case EXPR_BINARY_SHIFTLEFT:
+ case EXPR_BINARY_SHIFTRIGHT:
return create_shift(expression);
- case BINEXPR_DIV:
- case BINEXPR_MOD:
+ 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_DIV_ASSIGN:
+ case EXPR_BINARY_MOD_ASSIGN:
+ case EXPR_BINARY_DIV_ASSIGN:
return create_arithmetic_assign_divmod(expression);
- case BINEXPR_BITWISE_AND_ASSIGN:
+ 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:
- case BINEXPR_SHIFTRIGHT_ASSIGN:
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+ case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
return create_arithmetic_assign_shift(expression);
+ case EXPR_BINARY_BUILTIN_EXPECT:
+ return expression_to_firm(expression->left);
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->base.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);
+ offset = create_conv(dbgi, offset, mode_uint);
- type_t *ref_type = skip_typeref(expression->array_ref->base.datatype);
+ type_t *ref_type = skip_typeref(expression->array_ref->base.type);
assert(is_type_pointer(ref_type));
- pointer_type_t *pointer_type = (pointer_type_t*) ref_type;
+ pointer_type_t *pointer_type = &ref_type->pointer;
- unsigned elem_size = get_type_size(pointer_type->points_to);
- ir_node *elem_size_const = new_Const_long(mode_Iu, elem_size);
+ ir_node *elem_size_const = get_type_size(pointer_type->points_to);
ir_node *real_offset = new_d_Mul(dbgi, offset, elem_size_const,
- mode_Iu);
- ir_node *result = new_d_Add(dbgi, base_addr, real_offset, mode_P);
+ mode_uint);
+ ir_node *result = new_d_Add(dbgi, base_addr, real_offset, mode_P_data);
return result;
}
static ir_node *array_access_to_firm(
const array_access_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.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 deref_address(irtype, addr, dbgi);
+ return deref_address(type, addr, dbgi);
+}
+
+static long get_offsetof_offset(const offsetof_expression_t *expression)
+{
+ type_t *orig_type = expression->type;
+ long offset = 0;
+
+ designator_t *designator = expression->designator;
+ for( ; designator != NULL; designator = designator->next) {
+ type_t *type = skip_typeref(orig_type);
+ /* be sure the type is constructed */
+ (void) get_ir_type(type);
+
+ if(designator->symbol != NULL) {
+ assert(is_type_compound(type));
+ symbol_t *symbol = designator->symbol;
+
+ declaration_t *declaration = type->compound.declaration;
+ declaration_t *iter = declaration->scope.declarations;
+ for( ; iter != NULL; iter = iter->next) {
+ if(iter->symbol == symbol) {
+ break;
+ }
+ }
+ assert(iter != NULL);
+
+ assert(iter->declaration_kind == DECLARATION_KIND_COMPOUND_MEMBER);
+ offset += get_entity_offset(iter->v.entity);
+
+ orig_type = iter->type;
+ } else {
+ expression_t *array_index = designator->array_index;
+ assert(designator->array_index != NULL);
+ assert(is_type_array(type));
+ assert(is_type_valid(array_index->base.type));
+
+ long index = fold_constant(array_index);
+ ir_type *arr_type = get_ir_type(type);
+ ir_type *elem_type = get_array_element_type(arr_type);
+ long elem_size = get_type_size_bytes(elem_type);
+
+ offset += index * elem_size;
+
+ orig_type = type->array.element_type;
+ }
+ }
+
+ return offset;
+}
+
+static ir_node *offsetof_to_firm(const offsetof_expression_t *expression)
+{
+ ir_mode *mode = get_ir_mode(expression->base.type);
+ long offset = get_offsetof_offset(expression);
+ tarval *tv = new_tarval_from_long(offset, mode);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+
+ return new_d_Const(dbgi, mode, tv);
+}
+
+static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi,
+ ir_entity *entity, type_t *type);
+
+static ir_node *compound_literal_to_firm(
+ const compound_literal_expression_t *expression)
+{
+ type_t *type = expression->type;
+
+ /* create an entity on the stack */
+ ir_type *frame_type = get_irg_frame_type(current_ir_graph);
+
+ ident *const id = unique_ident("CompLit");
+ ir_type *const irtype = get_ir_type(type);
+ dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ ir_entity *const entity = new_d_entity(frame_type, id, irtype, dbgi);
+ set_entity_ld_ident(entity, id);
+
+ set_entity_variability(entity, variability_uninitialized);
+
+ /* create initialisation code */
+ initializer_t *initializer = expression->initializer;
+ create_local_initializer(initializer, dbgi, entity, type);
+
+ /* create a sel for the compound literal address */
+ ir_node *frame = get_local_frame(entity);
+ ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
+ return sel;
+}
+
+/**
+ * Transform a sizeof expression into Firm code.
+ */
+static ir_node *sizeof_to_firm(const typeprop_expression_t *expression)
+{
+ type_t *type = expression->type;
+ if(type == NULL) {
+ type = expression->tp_expression->base.type;
+ assert(type != NULL);
+ }
+
+ type = skip_typeref(type);
+ /* § 6.5.3.4 (2) if the type is a VLA, evaluate the expression. */
+ if(is_type_array(type) && type->array.is_vla
+ && expression->tp_expression != NULL) {
+ expression_to_firm(expression->tp_expression);
+ }
+
+ return get_type_size(type);
}
-static ir_node *sizeof_to_firm(const sizeof_expression_t *expression)
+/**
+ * Transform an alignof expression into Firm code.
+ */
+static ir_node *alignof_to_firm(const typeprop_expression_t *expression)
{
type_t *type = expression->type;
if(type == NULL) {
- type = expression->size_expression->base.datatype;
+ /* beware: if expression is a variable reference, return the
+ alignment of the variable. */
+ const expression_t *tp_expression = expression->tp_expression;
+ const declaration_t *declaration = expr_is_variable(tp_expression);
+ if (declaration != NULL) {
+ /* TODO: get the alignment of this variable. */
+ }
+ type = tp_expression->base.type;
assert(type != NULL);
}
- ir_mode *mode = get_ir_mode(expression->expression.datatype);
- unsigned size = get_type_size(type);
- ir_node *size_node = new_Const_long(mode, size);
+ ir_mode *const mode = get_ir_mode(expression->base.type);
+ symconst_symbol sym;
+ sym.type_p = get_ir_type(type);
+ return new_SymConst(mode, sym, symconst_type_align);
+}
+
+static void init_ir_types(void);
+long fold_constant(const expression_t *expression)
+{
+ init_ir_types();
+
+ assert(is_constant_expression(expression));
+
+ ir_graph *old_current_ir_graph = current_ir_graph;
+ if(current_ir_graph == NULL) {
+ current_ir_graph = get_const_code_irg();
+ }
+
+ ir_node *cnst = expression_to_firm(expression);
+ current_ir_graph = old_current_ir_graph;
+
+ if(!is_Const(cnst)) {
+ panic("couldn't fold constant\n");
+ }
+
+ tarval *tv = get_Const_tarval(cnst);
+ if(!tarval_is_long(tv)) {
+ panic("result of constant folding is not integer\n");
+ }
- return size_node;
+ 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);
+ dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+
+ /* first try to fold a constant condition */
+ if(is_constant_expression(expression->condition)) {
+ long val = fold_constant(expression->condition);
+ if(val) {
+ return expression_to_firm(expression->true_expression);
+ } else {
+ return expression_to_firm(expression->false_expression);
+ }
+ }
ir_node *cur_block = get_cur_block();
static ir_node *select_addr(const select_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.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);
+ assert(entry->declaration_kind == DECLARATION_KIND_COMPOUND_MEMBER);
ir_entity *entity = entry->v.entity;
assert(entity != NULL);
static ir_node *select_to_firm(const select_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
+ dbg_info *dbgi = get_dbg_info(&expression->base.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);
+ return deref_address(type, addr, dbgi);
}
/* Values returned by __builtin_classify_type. */
static ir_node *classify_type_to_firm(const classify_type_expression_t *const expr)
{
- const type_t *const type = expr->type_expression->base.datatype;
+ const type_t *const type = skip_typeref(expr->type_expression->base.type);
gcc_type_class tc;
- switch (type->type)
+ switch (type->kind)
{
case TYPE_ATOMIC: {
const atomic_type_t *const atomic_type = &type->atomic;
- switch (atomic_type->atype) {
- // should not be reached
+ switch ((atomic_type_kind_t) atomic_type->akind) {
+ /* should not be reached */
case ATOMIC_TYPE_INVALID:
tc = no_type_class;
- break;
+ goto make_const;
- // gcc cannot do that
+ /* gcc cannot do that */
case ATOMIC_TYPE_VOID:
tc = void_type_class;
- break;
+ goto make_const;
- 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_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_ULONG:
case ATOMIC_TYPE_LONGLONG:
case ATOMIC_TYPE_ULONGLONG:
- case ATOMIC_TYPE_BOOL: // gcc handles this as integer
+ case ATOMIC_TYPE_BOOL: /* gcc handles this as integer */
tc = integer_type_class;
- break;
+ goto make_const;
case ATOMIC_TYPE_FLOAT:
case ATOMIC_TYPE_DOUBLE:
case ATOMIC_TYPE_LONG_DOUBLE:
tc = real_type_class;
- break;
+ goto make_const;
-#ifdef PROVIDE_COMPLEX
case ATOMIC_TYPE_FLOAT_COMPLEX:
case ATOMIC_TYPE_DOUBLE_COMPLEX:
case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
tc = complex_type_class;
- break;
+ goto make_const;
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().");
+ goto make_const;
}
- break;
+ panic("Unexpected atomic type in classify_type_to_firm().");
}
- 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().");
+ case TYPE_BITFIELD: tc = integer_type_class; goto make_const;
+ case TYPE_ARRAY: /* gcc handles this as pointer */
+ case TYPE_FUNCTION: /* gcc handles this as pointer */
+ case TYPE_POINTER: tc = pointer_type_class; goto make_const;
+ case TYPE_COMPOUND_STRUCT: tc = record_type_class; goto make_const;
+ case TYPE_COMPOUND_UNION: tc = union_type_class; goto make_const;
+
+ /* gcc handles this as integer */
+ case TYPE_ENUM: tc = integer_type_class; goto make_const;
+
+ case TYPE_BUILTIN:
+ /* typedef/typeof should be skipped already */
+ case TYPE_TYPEDEF:
+ case TYPE_TYPEOF:
+ case TYPE_INVALID:
+ case TYPE_ERROR:
+ break;
}
+ panic("unexpected TYPE classify_type_to_firm().");
- dbg_info *const dbgi = get_dbg_info(&expr->expression.source_position);
- ir_mode *const mode = mode_Is;
+make_const: ;
+ dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
+ ir_mode *const mode = mode_int;
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)
+ const funcname_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);
+ switch(expr->kind) {
+ case FUNCNAME_FUNCTION:
+ case FUNCNAME_PRETTY_FUNCTION:
+ case FUNCNAME_FUNCDNAME:
+ if (current_function_name == NULL) {
+ const source_position_t *const src_pos = &expr->base.source_position;
+ const char *const name = current_function_decl->symbol->string;
+ const string_t string = { name, strlen(name) + 1 };
+ current_function_name = string_to_firm(src_pos, "__func__", &string);
+ }
+ return current_function_name;
+ case FUNCNAME_FUNCSIG:
+ if (current_funcsig == NULL) {
+ const source_position_t *const src_pos = &expr->base.source_position;
+ ir_entity *ent = get_irg_entity(current_ir_graph);
+ const char *const name = get_entity_ld_name(ent);
+ const string_t string = { name, strlen(name) + 1 };
+ current_funcsig = string_to_firm(src_pos, "__FUNCSIG__", &string);
+ }
+ return current_funcsig;
}
-
- return current_function_name;
+ panic("Unsupported 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);
+ assert(statement->kind == STATEMENT_COMPOUND);
+ return compound_statement_to_firm(&statement->compound);
}
static ir_node *va_start_expression_to_firm(
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);
+ dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
ir_node *const no_mem = new_NoMem();
ir_node *const arg_sel =
new_d_simpleSel(dbgi, no_mem, 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 cnst = get_type_size(expr->parameter->type);
ir_node *const add = new_d_Add(dbgi, arg_sel, cnst, mode_P_data);
set_value_for_expression(expr->ap, add);
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);
+ type_t *const type = expr->base.type;
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);
+ dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
+ ir_node *const res = deref_address(type, 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);
+ ir_node *const cnst = get_type_size(expr->base.type);
+ 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->type == UNEXPR_DEREFERENCE);
+ assert(expression->base.kind == EXPR_UNARY_DEREFERENCE);
return expression_to_firm(expression->value);
}
static ir_node *expression_to_addr(const expression_t *expression)
{
- switch(expression->type) {
+ switch(expression->kind) {
case EXPR_REFERENCE:
return reference_addr(&expression->reference);
case EXPR_ARRAY_ACCESS:
return select_addr(&expression->select);
case EXPR_CALL:
return call_expression_to_firm(&expression->call);
- case EXPR_UNARY: {
- const unary_expression_t *const unary_expr = &expression->unary;
- if (unary_expr->type == UNEXPR_DEREFERENCE) {
- return dereference_addr(unary_expr);
- }
- break;
+ case EXPR_UNARY_DEREFERENCE: {
+ return dereference_addr(&expression->unary);
}
default:
break;
panic("trying to get address of non-lvalue");
}
+static ir_node *builtin_constant_to_firm(
+ const builtin_constant_expression_t *expression)
+{
+ ir_mode *mode = get_ir_mode(expression->base.type);
+ long v;
+
+ if (is_constant_expression(expression->value)) {
+ v = 1;
+ } else {
+ v = 0;
+ }
+ return new_Const_long(mode, v);
+}
+
+static ir_node *builtin_prefetch_to_firm(
+ const builtin_prefetch_expression_t *expression)
+{
+ ir_node *adr = expression_to_firm(expression->adr);
+ /* no Firm support for prefetch yet */
+ (void) adr;
+ return NULL;
+}
+
static ir_node *_expression_to_firm(const expression_t *expression)
{
- switch(expression->type) {
+ switch(expression->kind) {
+ case EXPR_CHARACTER_CONSTANT:
+ return character_constant_to_firm(&expression->conste);
+ case EXPR_WIDE_CHARACTER_CONSTANT:
+ return wide_character_constant_to_firm(&expression->conste);
case EXPR_CONST:
return const_to_firm(&expression->conste);
case EXPR_STRING_LITERAL:
return reference_expression_to_firm(&expression->reference);
case EXPR_CALL:
return call_expression_to_firm(&expression->call);
- case EXPR_UNARY:
+ EXPR_UNARY_CASES
return unary_expression_to_firm(&expression->unary);
- case EXPR_BINARY:
+ EXPR_BINARY_CASES
return binary_expression_to_firm(&expression->binary);
case EXPR_ARRAY_ACCESS:
return array_access_to_firm(&expression->array_access);
case EXPR_SIZEOF:
- return sizeof_to_firm(&expression->sizeofe);
+ return sizeof_to_firm(&expression->typeprop);
+ case EXPR_ALIGNOF:
+ return alignof_to_firm(&expression->typeprop);
case EXPR_CONDITIONAL:
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_FUNCNAME:
+ return function_name_to_firm(&expression->funcname);
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_BUILTIN_CONSTANT_P:
+ return builtin_constant_to_firm(&expression->builtin_constant);
+ case EXPR_BUILTIN_PREFETCH:
+ return builtin_prefetch_to_firm(&expression->builtin_prefetch);
+ case EXPR_OFFSETOF:
+ return offsetof_to_firm(&expression->offsetofe);
+ case EXPR_COMPOUND_LITERAL:
+ return compound_literal_to_firm(&expression->compound_literal);
case EXPR_UNKNOWN:
case EXPR_INVALID:
ir_node *res = _expression_to_firm(expression);
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->base.type);
+ if(is_Const(res)) {
+ if(is_Const_null(res)) {
+ return new_Const_long(mode, 0);
+ } else {
+ assert(is_Const_one(res));
+ return new_Const_long(mode, 1);
+ }
+ }
+
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ return produce_condition_result(expression, dbgi);
}
return res;
ir_node *true_block,
ir_node *false_block)
{
- switch(expression->type) {
- case EXPR_UNARY: {
- unary_expression_t *unary_expression = (unary_expression_t*) expression;
- if(unary_expression->type == UNEXPR_NOT) {
- create_condition_evaluation(unary_expression->value, false_block,
- true_block);
- return;
- }
- break;
+ switch(expression->kind) {
+ 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: {
- binary_expression_t *binary_expression
- = (binary_expression_t*) expression;
- if(binary_expression->type == BINEXPR_LOGICAL_AND) {
- 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;
- }
- if(binary_expression->type == BINEXPR_LOGICAL_OR) {
- 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;
- }
- break;
+ 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;
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 branch prediction info based on __builtin_expect */
+ if(expression->kind == EXPR_BINARY_BUILTIN_EXPECT) {
+ long cnst = fold_constant(expression->binary.right);
+ cond_jmp_predicate pred;
+
+ if(cnst == 0) {
+ pred = COND_JMP_PRED_FALSE;
+ } else {
+ pred = COND_JMP_PRED_TRUE;
+ }
+ set_Cond_jmp_pred(cond, pred);
+ }
+
add_immBlock_pred(true_block, true_proj);
add_immBlock_pred(false_block, false_proj);
set_cur_block(NULL);
}
-static void return_statement_to_firm(return_statement_t *statement)
+
+
+static void create_declaration_entity(declaration_t *declaration,
+ declaration_kind_t declaration_kind,
+ ir_type *parent_type)
{
- if(get_cur_block() == NULL)
- return;
+ ident *const id = new_id_from_str(declaration->symbol->string);
+ type_t *const type = skip_typeref(declaration->type);
+ ir_type *const irtype = get_ir_type(type);
+ dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
+ ir_entity *const entity = new_d_entity(parent_type, id, irtype, dbgi);
+ set_entity_ld_ident(entity, id);
- ir_type *func_irtype = get_ir_type(current_function_decl->type);
+ declaration->declaration_kind = (unsigned char) declaration_kind;
+ 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_kind == DECLARATION_KIND_GLOBAL_VARIABLE)
+ set_entity_allocation(entity, allocation_static);
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
+ if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ set_entity_volatility(entity, volatility_is_volatile);
+ }
+}
- 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;
+typedef struct type_path_entry_t type_path_entry_t;
+struct type_path_entry_t {
+ type_t *type;
+ ir_initializer_t *initializer;
+ size_t index;
+ declaration_t *compound_entry;
+};
+
+typedef struct type_path_t type_path_t;
+struct type_path_t {
+ type_path_entry_t *path;
+ type_t *top_type;
+ bool invalid;
+};
+
+static __attribute__((unused)) void debug_print_type_path(const type_path_t *path)
+{
+ size_t len = ARR_LEN(path->path);
+
+ for(size_t i = 0; i < len; ++i) {
+ const type_path_entry_t *entry = & path->path[i];
+
+ type_t *type = skip_typeref(entry->type);
+ if(is_type_compound(type)) {
+ fprintf(stderr, ".%s", entry->compound_entry->symbol->string);
+ } else if(is_type_array(type)) {
+ fprintf(stderr, "[%zd]", entry->index);
} else {
- ir_mode *mode;
- if(is_compound_type(res_type)) {
- mode = mode_P_data;
+ fprintf(stderr, "-INVALID-");
+ }
+ }
+ fprintf(stderr, " (");
+ print_type(path->top_type);
+ fprintf(stderr, ")");
+}
+
+static type_path_entry_t *get_type_path_top(const type_path_t *path)
+{
+ size_t len = ARR_LEN(path->path);
+ assert(len > 0);
+ return & path->path[len-1];
+}
+
+static type_path_entry_t *append_to_type_path(type_path_t *path)
+{
+ size_t len = ARR_LEN(path->path);
+ ARR_RESIZE(type_path_entry_t, path->path, len+1);
+
+ type_path_entry_t *result = & path->path[len];
+ memset(result, 0, sizeof(result[0]));
+ return result;
+}
+
+static size_t get_compound_size(const compound_type_t *type)
+{
+ declaration_t *declaration = type->declaration;
+ declaration_t *member = declaration->scope.declarations;
+ size_t size = 0;
+ for( ; member != NULL; member = member->next) {
+ ++size;
+ }
+ /* TODO: cache results? */
+
+ return size;
+}
+
+static ir_initializer_t *get_initializer_entry(type_path_t *path)
+{
+ type_t *orig_top_type = path->top_type;
+ type_t *top_type = skip_typeref(orig_top_type);
+
+ assert(is_type_compound(top_type) || is_type_array(top_type));
+
+ if(ARR_LEN(path->path) == 0) {
+ return NULL;
+ } else {
+ type_path_entry_t *top = get_type_path_top(path);
+ ir_initializer_t *initializer = top->initializer;
+ return get_initializer_compound_value(initializer, top->index);
+ }
+}
+
+static void descend_into_subtype(type_path_t *path)
+{
+ type_t *orig_top_type = path->top_type;
+ type_t *top_type = skip_typeref(orig_top_type);
+
+ assert(is_type_compound(top_type) || is_type_array(top_type));
+
+ ir_initializer_t *initializer = get_initializer_entry(path);
+
+ type_path_entry_t *top = append_to_type_path(path);
+ top->type = top_type;
+
+ size_t len;
+
+ if(is_type_compound(top_type)) {
+ declaration_t *declaration = top_type->compound.declaration;
+ declaration_t *entry = declaration->scope.declarations;
+
+ top->compound_entry = entry;
+ top->index = 0;
+ len = get_compound_size(&top_type->compound);
+ if(entry != NULL)
+ path->top_type = entry->type;
+ } else {
+ assert(is_type_array(top_type));
+ assert(top_type->array.size > 0);
+
+ top->index = 0;
+ path->top_type = top_type->array.element_type;
+ len = top_type->array.size;
+ }
+ if(initializer == NULL
+ || get_initializer_kind(initializer) == IR_INITIALIZER_NULL) {
+ initializer = create_initializer_compound(len);
+ /* we have to set the entry at the 2nd latest path entry... */
+ size_t path_len = ARR_LEN(path->path);
+ assert(path_len >= 1);
+ if(path_len > 1) {
+ type_path_entry_t *entry = & path->path[path_len-2];
+ ir_initializer_t *tinitializer = entry->initializer;
+ set_initializer_compound_value(tinitializer, entry->index,
+ initializer);
+ }
+ }
+ top->initializer = initializer;
+}
+
+static void ascend_from_subtype(type_path_t *path)
+{
+ type_path_entry_t *top = get_type_path_top(path);
+
+ path->top_type = top->type;
+
+ size_t len = ARR_LEN(path->path);
+ ARR_RESIZE(type_path_entry_t, path->path, len-1);
+}
+
+static void walk_designator(type_path_t *path, const designator_t *designator)
+{
+ /* designators start at current object type */
+ ARR_RESIZE(type_path_entry_t, path->path, 1);
+
+ for( ; designator != NULL; designator = designator->next) {
+ type_path_entry_t *top = get_type_path_top(path);
+ type_t *orig_type = top->type;
+ type_t *type = skip_typeref(orig_type);
+
+ if(designator->symbol != NULL) {
+ assert(is_type_compound(type));
+ size_t index = 0;
+ symbol_t *symbol = designator->symbol;
+
+ declaration_t *declaration = type->compound.declaration;
+ declaration_t *iter = declaration->scope.declarations;
+ for( ; iter != NULL; iter = iter->next, ++index) {
+ if(iter->symbol == symbol) {
+ break;
+ }
+ }
+ assert(iter != NULL);
+
+ top->type = orig_type;
+ top->compound_entry = iter;
+ top->index = index;
+ orig_type = iter->type;
+ } else {
+ expression_t *array_index = designator->array_index;
+ assert(designator->array_index != NULL);
+ assert(is_type_array(type));
+ assert(is_type_valid(array_index->base.type));
+
+ long index = fold_constant(array_index);
+ assert(index >= 0);
+#ifndef NDEBUG
+ if(type->array.size_constant == 1) {
+ long array_size = type->array.size;
+ assert(index < array_size);
+ }
+#endif
+
+ top->type = orig_type;
+ top->index = (size_t) index;
+ orig_type = type->array.element_type;
+ }
+ path->top_type = orig_type;
+
+ if(designator->next != NULL) {
+ descend_into_subtype(path);
+ }
+ }
+
+ path->invalid = false;
+}
+
+static void advance_current_object(type_path_t *path)
+{
+ if(path->invalid) {
+ /* TODO: handle this... */
+ panic("invalid initializer in ast2firm (excessive elements)");
+ return;
+ }
+
+ type_path_entry_t *top = get_type_path_top(path);
+
+ type_t *type = skip_typeref(top->type);
+ if(is_type_union(type)) {
+ top->compound_entry = NULL;
+ } else if(is_type_struct(type)) {
+ declaration_t *entry = top->compound_entry;
+
+ top->index++;
+ entry = entry->next;
+ top->compound_entry = entry;
+ if(entry != NULL) {
+ path->top_type = entry->type;
+ return;
+ }
+ } else {
+ assert(is_type_array(type));
+
+ top->index++;
+ if(!type->array.size_constant || top->index < type->array.size) {
+ return;
+ }
+ }
+
+ /* we're past the last member of the current sub-aggregate, try if we
+ * can ascend in the type hierarchy and continue with another subobject */
+ size_t len = ARR_LEN(path->path);
+
+ if(len > 1) {
+ ascend_from_subtype(path);
+ advance_current_object(path);
+ } else {
+ path->invalid = true;
+ }
+}
+
+
+static ir_initializer_t *create_ir_initializer(
+ const initializer_t *initializer, type_t *type);
+
+static ir_initializer_t *create_ir_initializer_value(
+ const initializer_value_t *initializer)
+{
+ ir_node *value = expression_to_firm(initializer->value);
+ return create_initializer_const(value);
+}
+
+static ir_initializer_t *create_ir_initializer_list(
+ const initializer_list_t *initializer, type_t *type)
+{
+ type_path_t path;
+ memset(&path, 0, sizeof(path));
+ path.top_type = type;
+ path.path = NEW_ARR_F(type_path_entry_t, 0);
+
+ descend_into_subtype(&path);
+
+ for(size_t i = 0; i < initializer->len; ++i) {
+ const initializer_t *sub_initializer = initializer->initializers[i];
+
+ if(sub_initializer->kind == INITIALIZER_DESIGNATOR) {
+ walk_designator(&path, sub_initializer->designator.designator);
+ continue;
+ }
+
+ if(sub_initializer->kind == INITIALIZER_VALUE) {
+ /* we might have to descend into types until we're at a scalar
+ * type */
+ while(true) {
+ type_t *orig_top_type = path.top_type;
+ type_t *top_type = skip_typeref(orig_top_type);
+
+ if(is_type_scalar(top_type))
+ break;
+ descend_into_subtype(&path);
+ }
+ }
+
+ ir_initializer_t *sub_irinitializer
+ = create_ir_initializer(sub_initializer, path.top_type);
+
+ size_t path_len = ARR_LEN(path.path);
+ assert(path_len >= 1);
+ type_path_entry_t *entry = & path.path[path_len-1];
+ ir_initializer_t *tinitializer = entry->initializer;
+ set_initializer_compound_value(tinitializer, entry->index,
+ sub_irinitializer);
+
+ advance_current_object(&path);
+ }
+
+ assert(ARR_LEN(path.path) >= 1);
+ ir_initializer_t *result = path.path[0].initializer;
+ DEL_ARR_F(path.path);
+
+ return result;
+}
+
+static ir_initializer_t *create_ir_initializer_string(
+ const initializer_string_t *initializer, type_t *type)
+{
+ type = skip_typeref(type);
+
+ size_t string_len = initializer->string.size;
+ assert(type->kind == TYPE_ARRAY && type->array.size_constant);
+ size_t len = type->array.size;
+ ir_initializer_t *irinitializer = create_initializer_compound(len);
+
+ const char *string = initializer->string.begin;
+ ir_mode *mode = get_type_mode(ir_type_const_char);
+
+ for(size_t i = 0; i < len; ++i) {
+ char c = 0;
+ if(i < string_len)
+ c = string[i];
+
+ tarval *tv = new_tarval_from_long(string[i], mode);
+ ir_initializer_t *char_initializer = create_initializer_tarval(tv);
+
+ set_initializer_compound_value(irinitializer, i, char_initializer);
+ }
+
+ return irinitializer;
+}
+
+static ir_initializer_t *create_ir_initializer_wide_string(
+ const initializer_wide_string_t *initializer, type_t *type)
+{
+ size_t string_len = initializer->string.size;
+ assert(type->kind == TYPE_ARRAY && type->array.size_constant);
+ size_t len = type->array.size;
+ ir_initializer_t *irinitializer = create_initializer_compound(len);
+
+ const wchar_rep_t *string = initializer->string.begin;
+ ir_mode *mode = get_type_mode(ir_type_wchar_t);
+
+ for(size_t i = 0; i < len; ++i) {
+ wchar_rep_t c = 0;
+ if(i < string_len) {
+ c = string[i];
+ }
+ tarval *tv = new_tarval_from_long(string[i], mode);
+ ir_initializer_t *char_initializer = create_initializer_tarval(tv);
+
+ set_initializer_compound_value(irinitializer, i, char_initializer);
+ }
+
+ return irinitializer;
+}
+
+static ir_initializer_t *create_ir_initializer(
+ const initializer_t *initializer, type_t *type)
+{
+ switch(initializer->kind) {
+ case INITIALIZER_STRING:
+ return create_ir_initializer_string(&initializer->string, type);
+
+ case INITIALIZER_WIDE_STRING:
+ return create_ir_initializer_wide_string(&initializer->wide_string,
+ type);
+
+ case INITIALIZER_LIST:
+ return create_ir_initializer_list(&initializer->list, type);
+
+ case INITIALIZER_VALUE:
+ return create_ir_initializer_value(&initializer->value);
+
+ case INITIALIZER_DESIGNATOR:
+ panic("unexpected designator initializer found");
+ }
+ panic("unknown initializer");
+}
+
+static void create_dynamic_initializer_sub(ir_initializer_t *initializer,
+ ir_type *type, dbg_info *dbgi, ir_node *base_addr)
+{
+ switch(get_initializer_kind(initializer)) {
+ case IR_INITIALIZER_NULL: {
+ /* TODO: implement this for compound types... */
+ assert(type != NULL);
+
+ ir_mode *mode = get_type_mode(type);
+ tarval *zero = get_mode_null(mode);
+ ir_node *cnst = new_d_Const(dbgi, mode, zero);
+
+ /* TODO: bitfields */
+ ir_node *mem = get_store();
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst);
+ ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+ set_store(proj_m);
+ return;
+ }
+ case IR_INITIALIZER_CONST: {
+ ir_node *node = get_initializer_const_value(initializer);
+ ir_mode *mode = get_irn_mode(node);
+ assert(get_type_mode(type) == mode);
+
+ /* TODO: bitfields... */
+ ir_node *mem = get_store();
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, node);
+ ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+ set_store(proj_m);
+ return;
+ }
+ case IR_INITIALIZER_TARVAL: {
+ tarval *tv = get_initializer_tarval_value(initializer);
+ ir_mode *mode = get_tarval_mode(tv);
+ ir_node *cnst = new_d_Const(dbgi, mode, tv);
+ assert(get_type_mode(type) == mode);
+
+ /* TODO: bitfields... */
+ ir_node *mem = get_store();
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst);
+ ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+ set_store(proj_m);
+ return;
+ }
+ case IR_INITIALIZER_COMPOUND: {
+ assert(is_compound_type(type));
+ int n_members;
+ if(is_Array_type(type)) {
+ assert(has_array_upper_bound(type, 0));
+ n_members = get_array_upper_bound_int(type, 0);
+ } else {
+ n_members = get_compound_n_members(type);
+ }
+
+ if(get_initializer_compound_n_entries(initializer)
+ != (unsigned) n_members)
+ panic("initializer doesn't match compound type");
+
+ for(int i = 0; i < n_members; ++i) {
+ ir_node *addr;
+ ir_type *irtype;
+ if(is_Array_type(type)) {
+ ir_entity *entity = get_array_element_entity(type);
+ tarval *index_tv = new_tarval_from_long(i, mode_uint);
+ ir_node *cnst = new_d_Const(dbgi, mode_uint, index_tv);
+ ir_node *in[1] = { cnst };
+ irtype = get_array_element_type(type);
+ addr = new_d_Sel(dbgi, new_NoMem(), base_addr, 1, in, entity);
+ } else {
+ ir_entity *member = get_compound_member(type, i);
+
+ irtype = get_entity_type(member);
+ addr = new_d_simpleSel(dbgi, new_NoMem(), base_addr, member);
+ }
+
+ ir_initializer_t *sub_init
+ = get_initializer_compound_value(initializer, i);
+
+ create_dynamic_initializer_sub(sub_init, irtype, dbgi, addr);
+ }
+ return;
+ }
+ }
+
+ panic("invalid IR_INITIALIZER found");
+}
+
+static void create_dynamic_initializer(ir_initializer_t *initializer,
+ dbg_info *dbgi, ir_entity *entity)
+{
+ ir_node *frame = get_local_frame(entity);
+ ir_node *base_addr = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
+ ir_type *type = get_entity_type(entity);
+
+ create_dynamic_initializer_sub(initializer, type, dbgi, base_addr);
+}
+
+static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi,
+ ir_entity *entity, type_t *type)
+{
+ ir_node *memory = get_store();
+ ir_node *nomem = new_NoMem();
+ ir_node *frame = get_irg_frame(current_ir_graph);
+ ir_node *addr = new_d_simpleSel(dbgi, nomem, frame, entity);
+
+ if(initializer->kind == INITIALIZER_VALUE) {
+ initializer_value_t *initializer_value = &initializer->value;
+
+ ir_node *value = expression_to_firm(initializer_value->value);
+ type = skip_typeref(type);
+ assign_value(dbgi, addr, type, value);
+ return;
+ }
+
+ if(!is_constant_initializer(initializer)) {
+ ir_initializer_t *irinitializer
+ = create_ir_initializer(initializer, type);
+
+ create_dynamic_initializer(irinitializer, dbgi, entity);
+ return;
+ }
+
+ /* create the ir_initializer */
+ ir_graph *const old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ ir_initializer_t *irinitializer = create_ir_initializer(initializer, type);
+
+ assert(current_ir_graph == get_const_code_irg());
+ current_ir_graph = old_current_ir_graph;
+
+ /* create a "template" entity which is copied to the entity on the stack */
+ ident *const id = unique_ident("initializer");
+ ir_type *const irtype = get_ir_type(type);
+ ir_type *const global_type = get_glob_type();
+ ir_entity *const init_entity = new_d_entity(global_type, id, irtype, dbgi);
+ set_entity_ld_ident(init_entity, id);
+
+ set_entity_variability(init_entity, variability_initialized);
+ set_entity_visibility(init_entity, visibility_local);
+ set_entity_allocation(init_entity, allocation_static);
+
+ set_entity_initializer(init_entity, irinitializer);
+
+ ir_node *const src_addr = create_symconst(dbgi, mode_P_data, init_entity);
+ ir_node *const copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype);
+
+ ir_node *const copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular);
+ set_store(copyb_mem);
+}
+
+static void create_initializer_local_variable_entity(declaration_t *declaration)
+{
+ initializer_t *initializer = declaration->init.initializer;
+ dbg_info *dbgi = get_dbg_info(&declaration->source_position);
+ ir_entity *entity = declaration->v.entity;
+ type_t *type = declaration->type;
+ create_local_initializer(initializer, dbgi, entity, type);
+}
+
+static void create_declaration_initializer(declaration_t *declaration)
+{
+ initializer_t *initializer = declaration->init.initializer;
+ if(initializer == NULL)
+ return;
+
+ declaration_kind_t declaration_kind
+ = (declaration_kind_t) declaration->declaration_kind;
+ if(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE_ENTITY) {
+ create_initializer_local_variable_entity(declaration);
+ return;
+ }
+
+ if(initializer->kind == INITIALIZER_VALUE) {
+ initializer_value_t *initializer_value = &initializer->value;
+
+ ir_node *value = expression_to_firm(initializer_value->value);
+
+ if(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
+ set_value(declaration->v.value_number, value);
+ } else {
+ assert(declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE);
+
+ ir_entity *entity = declaration->v.entity;
+
+ set_entity_variability(entity, variability_initialized);
+ set_atomic_ent_value(entity, value);
+ }
+ } else {
+ assert(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE_ENTITY
+ || declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE);
+
+ ir_entity *entity = declaration->v.entity;
+ ir_initializer_t *irinitializer
+ = create_ir_initializer(initializer, declaration->type);
+
+ set_entity_variability(entity, variability_initialized);
+ set_entity_initializer(entity, irinitializer);
+ }
+}
+
+static void create_variable_length_array(declaration_t *declaration)
+{
+ dbg_info *dbgi = get_dbg_info(&declaration->source_position);
+ type_t *type = declaration->type;
+ ir_node *mem = get_store();
+ ir_type *el_type = get_ir_type(type->array.element_type);
+
+ /* make sure size_node is calculated */
+ get_type_size(type);
+ ir_node *elems = type->array.size_node;
+ ir_node *alloc = new_d_Alloc(dbgi, mem, elems, el_type, stack_alloc);
+
+ ir_node *proj_m = new_d_Proj(dbgi, alloc, mode_M, pn_Alloc_M);
+ ir_node *addr = new_d_Proj(dbgi, alloc, mode_P_data, pn_Alloc_res);
+ set_store(proj_m);
+
+ /* initializers are not allowed for VLAs */
+ assert(declaration->init.initializer == NULL);
+
+ declaration->declaration_kind = DECLARATION_KIND_VARIABLE_LENGTH_ARRAY;
+ declaration->v.vla_base = addr;
+
+ /* TODO: record VLA somewhere so we create the free node when we leave
+ * it's scope */
+}
+
+/**
+ * Creates a Firm local variable from a declaration.
+ */
+static void create_local_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_kind == DECLARATION_KIND_UNKNOWN);
+
+ bool needs_entity = declaration->address_taken;
+ type_t *type = skip_typeref(declaration->type);
+
+ /* is it a variable length array? */
+ if(is_type_array(type) && !type->array.size_constant) {
+ create_variable_length_array(declaration);
+ return;
+ } else if(is_type_array(type) || is_type_compound(type)) {
+ needs_entity = true;
+ } else if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ needs_entity = true;
+ }
+
+ if(needs_entity) {
+ ir_type *frame_type = get_irg_frame_type(current_ir_graph);
+ create_declaration_entity(declaration,
+ DECLARATION_KIND_LOCAL_VARIABLE_ENTITY,
+ frame_type);
+ } else {
+ declaration->declaration_kind = DECLARATION_KIND_LOCAL_VARIABLE;
+ declaration->v.value_number = next_value_number_function;
+ set_irg_loc_description(current_ir_graph, next_value_number_function, declaration);
+ ++next_value_number_function;
+ }
+
+ create_declaration_initializer(declaration);
+}
+
+static void create_local_static_variable(declaration_t *declaration)
+{
+ assert(declaration->declaration_kind == DECLARATION_KIND_UNKNOWN);
+
+ type_t *const type = skip_typeref(declaration->type);
+ ir_type *const global_type = get_glob_type();
+ ident *const id = unique_ident(declaration->symbol->string);
+ ir_type *const irtype = get_ir_type(type);
+ dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
+ ir_entity *const entity = new_d_entity(global_type, id, irtype, dbgi);
+ set_entity_ld_ident(entity, id);
+
+ if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ set_entity_volatility(entity, volatility_is_volatile);
+ }
+
+ declaration->declaration_kind = DECLARATION_KIND_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 *const old_current_ir_graph = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+
+ create_declaration_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->base.source_position);
+ ir_type *func_irtype = get_ir_type(current_function_decl->type);
+
+
+ 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->value != NULL) {
+ ir_node *node = expression_to_firm(statement->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_len = 1;
} else {
/* build return_value for its side effects */
- if(statement->return_value != NULL) {
- expression_to_firm(statement->return_value);
+ if(statement->value != NULL) {
+ expression_to_firm(statement->value);
}
in_len = 0;
}
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->base.next) {
- //context2firm(&statement->context);
+ ir_node *result = NULL;
+ statement_t *statement = compound->statements;
+ for( ; statement != NULL; statement = statement->base.next) {
+ //context2firm(&statement->scope);
+
+ if(statement->base.next == NULL
+ && statement->kind == STATEMENT_EXPRESSION) {
+ result = expression_statement_to_firm(
+ &statement->expression);
+ break;
+ }
+ statement_to_firm(statement);
+ }
+
+ return result;
+}
+
+static void create_global_variable(declaration_t *declaration)
+{
+ 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;
+
+ 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_KIND_GLOBAL_VARIABLE,
+ var_type);
+ set_entity_visibility(declaration->v.entity, vis);
+
+ return;
+
+ case STORAGE_CLASS_TYPEDEF:
+ case STORAGE_CLASS_AUTO:
+ case STORAGE_CLASS_REGISTER:
+ case STORAGE_CLASS_ENUM_ENTRY:
+ break;
+ }
+ panic("Invalid storage class for global variable");
+}
+
+static void create_local_declaration(declaration_t *declaration)
+{
+ if(declaration->symbol == NULL)
+ return;
- if(statement->base.next == NULL
- && statement->type == STATEMENT_EXPRESSION) {
- result = expression_statement_to_firm(
- (expression_statement_t*) statement);
- break;
+ 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_EXTERN:
+ create_global_variable(declaration);
+ create_declaration_initializer(declaration);
+ return;
+ case STORAGE_CLASS_NONE:
+ case STORAGE_CLASS_AUTO:
+ case STORAGE_CLASS_REGISTER:
+ if(is_type_function(type)) {
+ if(declaration->init.statement != NULL) {
+ panic("nested functions not supported yet");
+ } else {
+ get_function_entity(declaration);
+ }
+ } else {
+ create_local_variable(declaration);
}
- statement_to_firm(statement);
+ return;
+ case STORAGE_CLASS_ENUM_ENTRY:
+ case STORAGE_CLASS_TYPEDEF:
+ case STORAGE_CLASS_THREAD:
+ case STORAGE_CLASS_THREAD_EXTERN:
+ case STORAGE_CLASS_THREAD_STATIC:
+ return;
}
+ panic("invalid storage class found");
+}
- return result;
+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) {
+ if(declaration->namespc != NAMESPACE_NORMAL)
+ continue;
+ create_local_declaration(declaration);
+ }
}
static void if_statement_to_firm(if_statement_t *statement)
if(statement->initialisation != NULL) {
expression_to_firm(statement->initialisation);
}
+
+ /* create declarations */
+ declaration_t *declaration = statement->scope.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) {
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 {
- body_block = step_block;
- }
-
- /* create the condition */
- set_cur_block(header_block);
- if (statement->condition != NULL) {
- create_condition_evaluation(statement->condition, body_block,
- false_block);
- } else {
- keep_alive(header_block);
- jmp = new_Jmp();
- add_immBlock_pred(body_block, jmp);
- }
-
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- mature_immBlock(step_block);
- mature_immBlock(header_block);
- mature_immBlock(false_block);
-
- 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 = (unsigned char) declaration_type;
- declaration->v.entity = entity;
- set_entity_variability(entity, variability_uninitialized);
- /* 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);
-
- 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);
-
- 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;
-}
+ statement_to_firm(statement->body);
-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 = skip_typeref(declaration->type);
+ assert(continue_label == step_block);
+ assert(break_label == false_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
- switch ((storage_class_tag_t) declaration->storage_class) {
- case STORAGE_CLASS_TYPEDEF:
- continue;
- case STORAGE_CLASS_STATIC:
- create_local_static_variable(declaration);
- continue;
- 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);
- }
- continue;
- case STORAGE_CLASS_THREAD:
- case STORAGE_CLASS_THREAD_EXTERN:
- case STORAGE_CLASS_THREAD_STATIC:
- break;
+ if (get_cur_block() != NULL) {
+ jmp = new_Jmp();
+ add_immBlock_pred(step_block, jmp);
}
- panic("invalid storage class found");
+ } else {
+ body_block = step_block;
+ }
+
+ /* create the condition */
+ set_cur_block(header_block);
+ if (statement->condition != NULL) {
+ create_condition_evaluation(statement->condition, body_block,
+ false_block);
+ } else {
+ keep_alive(header_block);
+ jmp = new_Jmp();
+ add_immBlock_pred(body_block, jmp);
}
+
+ mature_immBlock(body_block);
+ mature_immBlock(false_block);
+ mature_immBlock(step_block);
+ mature_immBlock(header_block);
+ mature_immBlock(false_block);
+
+ set_cur_block(false_block);
}
static void create_jump_statement(const statement_t *statement,
static void switch_statement_to_firm(const switch_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->statement.source_position);
+ dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
ir_node *expression = expression_to_firm(statement->expression);
ir_node *cond = new_d_Cond(dbgi, expression);
current_switch_cond = cond;
break_label = break_block;
- statement_to_firm(statement->body);
+ if (statement->body != NULL) {
+ statement_to_firm(statement->body);
+ }
if(get_cur_block() != NULL) {
ir_node *jmp = new_Jmp();
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);
+ dbg_info *dbgi = get_dbg_info(&statement->base.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;
- set_cur_block(get_nodes_block(current_switch_cond));
- if(statement->expression) {
- long pn = fold_constant(statement->expression);
- if(pn == MAGIC_DEFAULT_PN_NUMBER) {
- /* oops someone detected our cheating... */
- panic("magic default pn used");
- }
- proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
+ ir_node *old_block = get_nodes_block(current_switch_cond);
+ ir_node *block = new_immBlock();
+
+ set_cur_block(old_block);
+ if(statement->expression != NULL) {
+ long start_pn = fold_constant(statement->expression);
+ long end_pn = start_pn;
+ if (statement->end_range != NULL) {
+ end_pn = fold_constant(statement->end_range);
+ }
+ assert(start_pn <= end_pn);
+ /* create jumps for all cases in the given range */
+ for (long pn = start_pn; pn <= end_pn; ++pn) {
+ if(pn == MAGIC_DEFAULT_PN_NUMBER) {
+ /* oops someone detected our cheating... */
+ panic("magic default pn used");
+ }
+ proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
+ add_immBlock_pred(block, proj);
+ }
} else {
saw_default_label = true;
proj = new_d_defaultProj(dbgi, current_switch_cond,
MAGIC_DEFAULT_PN_NUMBER);
+
+ add_immBlock_pred(block, proj);
}
- ir_node *block = new_immBlock();
if (fallthrough != NULL) {
add_immBlock_pred(block, fallthrough);
}
- add_immBlock_pred(block, proj);
mature_immBlock(block);
+ set_cur_block(block);
- statement_to_firm(statement->label_statement);
+ if(statement->statement != NULL) {
+ statement_to_firm(statement->statement);
+ }
}
static ir_node *get_label_block(declaration_t *label)
{
assert(label->namespc == NAMESPACE_LABEL);
- if(label->declaration_type == DECLARATION_TYPE_LABEL_BLOCK) {
+ if(label->declaration_kind == DECLARATION_KIND_LABEL_BLOCK) {
return label->v.block;
}
- assert(label->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ assert(label->declaration_kind == DECLARATION_KIND_UNKNOWN);
ir_node *old_cur_block = get_cur_block();
ir_node *block = new_immBlock();
set_cur_block(old_cur_block);
- label->declaration_type = DECLARATION_TYPE_LABEL_BLOCK;
+ label->declaration_kind = DECLARATION_KIND_LABEL_BLOCK;
label->v.block = block;
ARR_APP1(ir_node *, imature_blocks, block);
set_cur_block(block);
keep_alive(block);
- statement_to_firm(statement->label_statement);
+ if(statement->statement != NULL) {
+ statement_to_firm(statement->statement);
+ }
}
static void goto_to_firm(const goto_statement_t *statement)
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;
+
+static void asm_statement_to_firm(const asm_statement_t *statement)
+{
+ (void) statement;
+ fprintf(stderr, "WARNING asm not implemented yet!\n");
+#if 0
+ 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) {
+ switch(statement->kind) {
case STATEMENT_INVALID:
panic("invalid statement found");
+ return;
+ case STATEMENT_EMPTY:
+ /* nothing */
+ return;
case STATEMENT_COMPOUND:
compound_statement_to_firm(&statement->compound);
return;
goto_to_firm(&statement->gotos);
return;
case STATEMENT_ASM:
- break;
+ asm_statement_to_firm(&statement->asms);
+ return;
}
panic("Statement not implemented\n");
}
+static int count_decls_in_expression(const expression_t *expression);
+
static int count_local_declarations(const declaration_t * decl,
const declaration_t *const end)
{
int count = 0;
for (; decl != end; decl = decl->next) {
+ if(decl->namespc != NAMESPACE_NORMAL)
+ continue;
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;
+ if (!decl->address_taken && is_type_scalar(type))
+ ++count;
+ const initializer_t *initializer = decl->init.initializer;
+ /* FIXME: should walk initializer hierarchies... */
+ if(initializer != NULL && initializer->kind == INITIALIZER_VALUE) {
+ count += count_decls_in_expression(initializer->value.value);
}
}
return count;
}
+static int count_decls_in_expression(const expression_t *expression) {
+ int count = 0;
+
+ if(expression == NULL)
+ return 0;
+
+ switch((expression_kind_t) expression->base.kind) {
+ case EXPR_STATEMENT:
+ return count_decls_in_stmts(expression->statement.statement);
+ EXPR_BINARY_CASES {
+ int count_left = count_decls_in_expression(expression->binary.left);
+ int count_right = count_decls_in_expression(expression->binary.right);
+ return count_left + count_right;
+ }
+ EXPR_UNARY_CASES
+ return count_decls_in_expression(expression->unary.value);
+ case EXPR_CALL: {
+ call_argument_t *argument = expression->call.arguments;
+ for( ; argument != NULL; argument = argument->next) {
+ count += count_decls_in_expression(argument->expression);
+ }
+ return count;
+ }
+
+ case EXPR_UNKNOWN:
+ case EXPR_INVALID:
+ panic("unexpected expression kind");
+
+ case EXPR_COMPOUND_LITERAL:
+ /* TODO... */
+ break;
+
+ case EXPR_CONDITIONAL:
+ count += count_decls_in_expression(expression->conditional.condition);
+ count += count_decls_in_expression(expression->conditional.true_expression);
+ count += count_decls_in_expression(expression->conditional.false_expression);
+ return count;
+
+ case EXPR_BUILTIN_PREFETCH:
+ count += count_decls_in_expression(expression->builtin_prefetch.adr);
+ count += count_decls_in_expression(expression->builtin_prefetch.rw);
+ count += count_decls_in_expression(expression->builtin_prefetch.locality);
+ return count;
+
+ case EXPR_BUILTIN_CONSTANT_P:
+ count += count_decls_in_expression(expression->builtin_constant.value);
+ return count;
+
+ case EXPR_SELECT:
+ count += count_decls_in_expression(expression->select.compound);
+ return count;
+
+ case EXPR_ARRAY_ACCESS:
+ count += count_decls_in_expression(expression->array_access.array_ref);
+ count += count_decls_in_expression(expression->array_access.index);
+ return count;
+
+ case EXPR_CLASSIFY_TYPE:
+ count += count_decls_in_expression(expression->classify_type.type_expression);
+ return count;
+
+ case EXPR_SIZEOF:
+ case EXPR_ALIGNOF: {
+ expression_t *tp_expression = expression->typeprop.tp_expression;
+ if (tp_expression != NULL) {
+ count += count_decls_in_expression(tp_expression);
+ }
+ return count;
+ }
+
+ case EXPR_OFFSETOF:
+ case EXPR_REFERENCE:
+ case EXPR_CONST:
+ case EXPR_CHARACTER_CONSTANT:
+ case EXPR_WIDE_CHARACTER_CONSTANT:
+ case EXPR_STRING_LITERAL:
+ case EXPR_WIDE_STRING_LITERAL:
+ case EXPR_FUNCNAME:
+ case EXPR_BUILTIN_SYMBOL:
+ case EXPR_VA_START:
+ case EXPR_VA_ARG:
+ break;
+ }
+
+ /* TODO FIXME: finish/fix that firm patch that allows dynamic value numbers
+ * (or implement all the missing expressions here/implement a walker)
+ */
+
+ return 0;
+}
+
static int count_decls_in_stmts(const statement_t *stmt)
{
int count = 0;
for (; stmt != NULL; stmt = stmt->base.next) {
- switch (stmt->type) {
+ switch (stmt->kind) {
+ case STATEMENT_EMPTY:
+ break;
+
case STATEMENT_DECLARATION: {
- const declaration_statement_t *const decl_stmt =
- (const declaration_statement_t*)stmt;
+ const declaration_statement_t *const decl_stmt = &stmt->declaration;
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;
+ &stmt->compound;
count += count_decls_in_stmts(comp->statements);
break;
}
case STATEMENT_IF: {
- const if_statement_t *const if_stmt = (const if_statement_t*)stmt;
+ const if_statement_t *const if_stmt = &stmt->ifs;
+ count += count_decls_in_expression(if_stmt->condition);
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;
+ const switch_statement_t *const switch_stmt = &stmt->switchs;
+ count += count_decls_in_expression(switch_stmt->expression);
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);
+ const label_statement_t *const label_stmt = &stmt->label;
+ if(label_stmt->statement != NULL) {
+ count += count_decls_in_stmts(label_stmt->statement);
+ }
break;
}
case STATEMENT_WHILE: {
- const while_statement_t *const while_stmt =
- (const while_statement_t*)stmt;
+ const while_statement_t *const while_stmt = &stmt->whiles;
+ count += count_decls_in_expression(while_stmt->condition);
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;
+ const do_while_statement_t *const do_while_stmt = &stmt->do_while;
+ count += count_decls_in_expression(do_while_stmt->condition);
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 */
+ const for_statement_t *const for_stmt = &stmt->fors;
+ count += count_local_declarations(for_stmt->scope.declarations, NULL);
+ count += count_decls_in_expression(for_stmt->initialisation);
+ count += count_decls_in_expression(for_stmt->condition);
+ count += count_decls_in_expression(for_stmt->step);
count += count_decls_in_stmts(for_stmt->body);
break;
}
+ case STATEMENT_CASE_LABEL: {
+ const case_label_statement_t *label = &stmt->case_label;
+ count += count_decls_in_expression(label->expression);
+ if(label->statement != NULL) {
+ count += count_decls_in_stmts(label->statement);
+ }
+ break;
+ }
+
case STATEMENT_ASM:
case STATEMENT_BREAK:
- case STATEMENT_CASE_LABEL:
case STATEMENT_CONTINUE:
- case STATEMENT_EXPRESSION:
+ break;
+
+ case STATEMENT_EXPRESSION: {
+ const expression_statement_t *expr_stmt = &stmt->expression;
+ count += count_decls_in_expression(expr_stmt->expression);
+ break;
+ }
+
case STATEMENT_GOTO:
case STATEMENT_INVALID:
- case STATEMENT_RETURN:
break;
+
+ case STATEMENT_RETURN: {
+ const return_statement_t *ret_stmt = &stmt->returns;
+ count += count_decls_in_expression(ret_stmt->value);
+ break;
+ }
}
}
return count;
int count = 0;
/* count parameters */
- count += count_local_declarations(declaration->context.declarations, NULL);
+ count += count_local_declarations(declaration->scope.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;
}
ir_type *function_irtype = get_ir_type(declaration->type);
int n = 0;
- declaration_t *parameter = declaration->context.declarations;
+ declaration_t *parameter = declaration->scope.declarations;
for( ; parameter != NULL; parameter = parameter->next, ++n) {
- assert(parameter->declaration_type == DECLARATION_TYPE_UNKNOWN);
+ assert(parameter->declaration_kind == DECLARATION_KIND_UNKNOWN);
type_t *type = skip_typeref(parameter->type);
bool needs_entity = parameter->address_taken;
ident *id = new_id_from_str(parameter->symbol->string);
set_entity_ident(entity, id);
- parameter->declaration_type
- = DECLARATION_TYPE_LOCAL_VARIABLE_ENTITY;
+ parameter->declaration_kind
+ = DECLARATION_KIND_LOCAL_VARIABLE_ENTITY;
parameter->v.entity = entity;
continue;
}
long pn = n;
ir_node *proj = new_r_Proj(irg, start_block, args, mode, pn);
- parameter->declaration_type = DECLARATION_TYPE_LOCAL_VARIABLE;
+ parameter->declaration_kind = DECLARATION_KIND_LOCAL_VARIABLE;
parameter->v.value_number = next_value_number_function;
+ set_irg_loc_description(current_ir_graph, next_value_number_function, parameter);
++next_value_number_function;
set_value(parameter->v.value_number, proj);
}
}
+/**
+ * Handle additional decl modifiers for IR-graphs
+ *
+ * @param irg the IR-graph
+ * @param dec_modifiers additional modifiers
+ */
+static void handle_decl_modifier_irg(ir_graph_ptr irg, decl_modifiers_t decl_modifiers)
+{
+ if (decl_modifiers & DM_NORETURN) {
+ /* TRUE if the declaration includes the Microsoft
+ __declspec(noreturn) specifier. */
+ set_irg_additional_property(irg, mtp_property_noreturn);
+ }
+ if (decl_modifiers & DM_NOTHROW) {
+ /* TRUE if the declaration includes the Microsoft
+ __declspec(nothrow) specifier. */
+ set_irg_additional_property(irg, mtp_property_nothrow);
+ }
+ if (decl_modifiers & DM_NAKED) {
+ /* TRUE if the declaration includes the Microsoft
+ __declspec(naked) specifier. */
+ set_irg_additional_property(irg, mtp_property_naked);
+ }
+ if (decl_modifiers & DM_FORCEINLINE) {
+ /* TRUE if the declaration includes the
+ Microsoft __forceinline specifier. */
+ set_irg_inline_property(irg, irg_inline_forced);
+ }
+ if (decl_modifiers & DM_NOINLINE) {
+ /* TRUE if the declaration includes the Microsoft
+ __declspec(noinline) specifier. */
+ set_irg_inline_property(irg, irg_inline_forbidden);
+ }
+}
+
static void create_function(declaration_t *declaration)
{
ir_entity *function_entity = get_function_entity(declaration);
current_function_decl = declaration;
current_function_name = NULL;
+ current_funcsig = NULL;
assert(imature_blocks == NULL);
imature_blocks = NEW_ARR_F(ir_node*, 0);
ir_graph *irg = new_ir_graph(function_entity, n_local_vars);
ir_node *first_block = get_cur_block();
+ /* set inline flags */
+ if (declaration->is_inline)
+ set_irg_inline_property(irg, irg_inline_recomended);
+ handle_decl_modifier_irg(irg, declaration->modifiers);
+
next_value_number_function = 0;
initialize_function_parameters(declaration);
}
ir_node *in[1];
- // §5.1.2.2.3 main implicitly returns 0
+ /* §5.1.2.2.3 main implicitly returns 0 */
if (strcmp(declaration->symbol->string, "main") == 0) {
in[0] = new_Const(mode, get_mode_null(mode));
} else {
}
set_type_size_bytes(frame_type, offset);
set_type_alignment_bytes(frame_type, align_all);
- set_type_state(frame_type, layout_fixed);
irg_vrfy(irg);
}
-static void create_global_variable(declaration_t *declaration)
-{
- 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;
-
- 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;
- }
- panic("Invalid storage class for global variable");
-}
-
-static void context_to_firm(context_t *context)
+static void scope_to_firm(scope_t *scope)
{
/* first pass: create declarations */
- declaration_t *declaration = context->declarations;
+ declaration_t *declaration = scope->declarations;
for( ; declaration != NULL; declaration = declaration->next) {
if(declaration->namespc != NAMESPACE_NORMAL)
continue;
}
}
- /* second pass: create code */
- declaration = context->declarations;
+ /* second pass: create code/initializers */
+ declaration = scope->declarations;
for( ; declaration != NULL; declaration = declaration->next) {
if(declaration->namespc != NAMESPACE_NORMAL)
continue;
continue;
type_t *type = declaration->type;
- if(type->type != TYPE_FUNCTION)
- continue;
+ if(type->kind == TYPE_FUNCTION) {
+ create_function(declaration);
+ } else {
+ assert(declaration->declaration_kind
+ == DECLARATION_KIND_GLOBAL_VARIABLE);
+ current_ir_graph = get_const_code_irg();
+ create_declaration_initializer(declaration);
+ }
+ }
+}
+
+void init_ast2firm(void)
+{
+ obstack_init(&asm_obst);
+ init_atomic_modes();
- create_function(declaration);
+ /* create idents for all known runtime functions */
+ for (size_t i = 0; i < sizeof(rts_data) / sizeof(rts_data[0]); ++i) {
+ predef_idents[rts_data[i].id] = new_id_from_str(rts_data[i].name);
}
}
-void translation_unit_to_firm(translation_unit_t *unit)
+static void init_ir_types(void)
{
+ static int ir_types_initialized = 0;
+ if(ir_types_initialized)
+ return;
+ ir_types_initialized = 1;
+
type_const_char = make_atomic_type(ATOMIC_TYPE_CHAR, TYPE_QUALIFIER_CONST);
type_void = make_atomic_type(ATOMIC_TYPE_VOID, TYPE_QUALIFIER_NONE);
type_int = make_atomic_type(ATOMIC_TYPE_INT, TYPE_QUALIFIER_NONE);
type in firm */
type_void->base.firm_type = ir_type_void;
+}
+
+void exit_ast2firm(void)
+{
+ obstack_free(&asm_obst, NULL);
+}
+void translation_unit_to_firm(translation_unit_t *unit)
+{
/* just to be sure */
continue_label = NULL;
break_label = NULL;
current_switch_cond = NULL;
- context_to_firm(& unit->context);
+ init_ir_types();
+
+ scope_to_firm(&unit->scope);
}
projects / cparser / blobdiff