void dmemory_lower_Alloc(ir_node *node) { assert(is_Alloc(node)); if (get_Alloc_where(node) != heap_alloc) return; ir_graph *irg = get_irn_irg(node); ir_type *type = get_Alloc_type(node); ir_node *count = get_Alloc_count(node); ir_node *res = NULL; ir_node *cur_mem = get_Alloc_mem(node); ir_node *block = get_nodes_block(node); if (is_Class_type(type)) { res = (*dmemory_model.alloc_object)(type, irg, block, &cur_mem); ddispatch_prepare_new_instance(type, res, irg, block, &cur_mem); } else if (is_Array_type(type)) { ir_type *eltype = get_array_element_type(type); res = (*dmemory_model.alloc_array)(eltype, count, irg, block, &cur_mem); } else { assert (0); } turn_into_tuple(node, pn_Alloc_max); set_irn_n(node, pn_Alloc_M, cur_mem); set_irn_n(node, pn_Alloc_res, res); }
static void check_entity_initializer(ir_entity *entity) { #ifndef NDEBUG ir_initializer_t *initializer = entity->initializer; ir_type *entity_tp = get_entity_type(entity); switch (initializer->kind) { case IR_INITIALIZER_COMPOUND: assert(is_compound_type(entity_tp) || is_Array_type(entity_tp)); break; case IR_INITIALIZER_CONST: /* methods are initialized by a SymConst */ assert(is_atomic_type(entity_tp) || is_Method_type(entity_tp)); break; case IR_INITIALIZER_TARVAL: assert(is_atomic_type(entity_tp)); break; case IR_INITIALIZER_NULL: break; } #else (void)entity; #endif }
/** * Lower a Sel node. Do not touch Sels accessing entities on the frame type. */ static void lower_sel(ir_node *sel) { ir_graph *irg = get_irn_irg(sel); ir_entity *ent = get_Sel_entity(sel); ir_type *owner = get_entity_owner(ent); dbg_info *dbg = get_irn_dbg_info(sel); ir_mode *mode = get_irn_mode(sel); ir_node *bl = get_nodes_block(sel); ir_node *newn; /* we can only replace Sels when the layout of the owner type is decided. */ if (get_type_state(owner) != layout_fixed) return; if (0 < get_Sel_n_indexs(sel)) { /* an Array access */ ir_type *basetyp = get_entity_type(ent); ir_mode *basemode; ir_node *index; if (is_Primitive_type(basetyp)) basemode = get_type_mode(basetyp); else basemode = mode_P_data; assert(basemode && "no mode for lowering Sel"); assert((get_mode_size_bits(basemode) % 8 == 0) && "can not deal with unorthodox modes"); index = get_Sel_index(sel, 0); if (is_Array_type(owner)) { ir_type *arr_ty = owner; size_t dims = get_array_n_dimensions(arr_ty); size_t *map = ALLOCAN(size_t, dims); ir_mode *mode_Int = get_reference_mode_signed_eq(mode); ir_tarval *tv; ir_node *last_size; size_t i; assert(dims == (size_t)get_Sel_n_indexs(sel) && "array dimension must match number of indices of Sel node"); for (i = 0; i < dims; i++) { size_t order = get_array_order(arr_ty, i); assert(order < dims && "order of a dimension must be smaller than the arrays dim"); map[order] = i; } newn = get_Sel_ptr(sel); /* Size of the array element */ tv = new_tarval_from_long(get_type_size_bytes(basetyp), mode_Int); last_size = new_rd_Const(dbg, irg, tv); /* * We compute the offset part of dimension d_i recursively * with the the offset part of dimension d_{i-1} * * off_0 = sizeof(array_element_type); * off_i = (u_i - l_i) * off_{i-1} ; i >= 1 * * whereas u_i is the upper bound of the current dimension * and l_i the lower bound of the current dimension. */ for (i = dims; i > 0;) { size_t dim = map[--i]; ir_node *lb, *ub, *elms, *n, *ind; elms = NULL; lb = get_array_lower_bound(arr_ty, dim); ub = get_array_upper_bound(arr_ty, dim); if (! is_Unknown(lb)) lb = new_rd_Conv(dbg, bl, copy_const_value(get_irn_dbg_info(sel), lb, bl), mode_Int); else lb = NULL; if (! is_Unknown(ub)) ub = new_rd_Conv(dbg, bl, copy_const_value(get_irn_dbg_info(sel), ub, bl), mode_Int); else ub = NULL; /* * If the array has more than one dimension, lower and upper * bounds have to be set in the non-last dimension. */ if (i > 0) { assert(lb != NULL && "lower bound has to be set in multi-dim array"); assert(ub != NULL && "upper bound has to be set in multi-dim array"); /* Elements in one Dimension */ elms = new_rd_Sub(dbg, bl, ub, lb, mode_Int); } ind = new_rd_Conv(dbg, bl, get_Sel_index(sel, dim), mode_Int); /* * Normalize index, id lower bound is set, also assume * lower bound == 0 */ if (lb != NULL) ind = new_rd_Sub(dbg, bl, ind, lb, mode_Int); n = new_rd_Mul(dbg, bl, ind, last_size, mode_Int); /* * see comment above. */ if (i > 0) last_size = new_rd_Mul(dbg, bl, last_size, elms, mode_Int); newn = new_rd_Add(dbg, bl, newn, n, mode); } } else { /* no array type */ ir_mode *idx_mode = get_irn_mode(index); ir_tarval *tv = new_tarval_from_long(get_mode_size_bytes(basemode), idx_mode); newn = new_rd_Add(dbg, bl, get_Sel_ptr(sel), new_rd_Mul(dbg, bl, index, new_r_Const(irg, tv), idx_mode), mode); } } else if (is_Method_type(get_entity_type(ent)) && is_Class_type(owner)) { /* We need an additional load when accessing methods from a dispatch * table. * Matze TODO: Is this really still used? At least liboo does its own * lowering of Method-Sels... */ ir_mode *ent_mode = get_type_mode(get_entity_type(ent)); int offset = get_entity_offset(ent); ir_mode *mode_Int = get_reference_mode_signed_eq(mode); ir_tarval *tv = new_tarval_from_long(offset, mode_Int); ir_node *cnst = new_rd_Const(dbg, irg, tv); ir_node *add = new_rd_Add(dbg, bl, get_Sel_ptr(sel), cnst, mode); ir_node *mem = get_Sel_mem(sel); newn = new_rd_Load(dbg, bl, mem, add, ent_mode, cons_none); newn = new_r_Proj(newn, ent_mode, pn_Load_res); } else { int offset = get_entity_offset(ent); /* replace Sel by add(obj, const(ent.offset)) */ newn = get_Sel_ptr(sel); if (offset != 0) { ir_mode *mode_UInt = get_reference_mode_unsigned_eq(mode); ir_tarval *tv = new_tarval_from_long(offset, mode_UInt); ir_node *cnst = new_r_Const(irg, tv); newn = new_rd_Add(dbg, bl, newn, cnst, mode); } } /* run the hooks */ hook_lower(sel); exchange(sel, newn); }
static bool check_initializer(const ir_initializer_t *initializer, const ir_type *type, const ir_entity *context) { bool fine = true; switch (get_initializer_kind(initializer)) { case IR_INITIALIZER_NULL: return fine; case IR_INITIALIZER_TARVAL: { ir_tarval *tv = get_initializer_tarval_value(initializer); if (get_type_mode(type) != get_tarval_mode(tv)) { report_error("tarval initializer for entity %+F has wrong mode: %+F vs %+F", context, get_type_mode(type), get_tarval_mode(tv)); fine = false; } return fine; } case IR_INITIALIZER_CONST: { ir_node *value = get_initializer_const_value(initializer); if (get_type_mode(type) != get_irn_mode(value)) { report_error("const initializer for entity %+F has wrong mode: %+F vs %+F", context, get_type_mode(type), get_irn_mode(value)); fine = false; } if (!constant_on_correct_irg(value)) { report_error("initializer const value %+F for entity %+F not on const-code irg", value, context); fine = false; } return fine; } case IR_INITIALIZER_COMPOUND: { size_t n_entries = get_initializer_compound_n_entries(initializer); if (is_Array_type(type)) { ir_type *element_type = get_array_element_type(type); /* TODO: check array bounds? */ for (size_t i = 0; i < n_entries; ++i) { const ir_initializer_t *sub_initializer = get_initializer_compound_value(initializer, i); check_initializer(sub_initializer, element_type, context); } } else if (is_compound_type(type)) { size_t n_members = get_compound_n_members(type); if (n_entries > n_members) { report_error("too many values in compound initializer of %+F", context); fine = false; } for (size_t i = 0; i < n_entries; ++i) { if (i >= n_members) break; ir_entity *member = get_compound_member(type, i); ir_type *member_type = get_entity_type(member); const ir_initializer_t *sub_initializer = get_initializer_compound_value(initializer, i); check_initializer(sub_initializer, member_type, context); } } else { report_error("compound initiailizer for non-array/compound type in entity %+F", context); fine = false; } return fine; } } report_error("invalid initializer for entity %+F", context); return false; }