2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Representation of opcode of intermediate operation.
23 * @author Christian Schaefer, Goetz Lindenmaier, Michael Beck
33 #include "irbackedge_t.h"
35 #include "iropt_t.h" /* for firm_set_default_operations */
37 #include "reassoc_t.h"
41 void be_init_op(void);
43 /** the available next opcode */
44 static unsigned next_iro = iro_MaxOpcode;
47 * Copies all attributes stored in the old node to the new node.
48 * Assumes both have the same opcode and sufficient size.
50 void default_copy_attr(const ir_node *old_node, ir_node *new_node) {
51 unsigned size = firm_add_node_size;
53 assert(get_irn_op(old_node) == get_irn_op(new_node));
54 memcpy(&new_node->attr, &old_node->attr, get_op_attr_size(get_irn_op(old_node)));
57 /* copy additional node data */
58 memcpy(get_irn_data(new_node, void, size), get_irn_data(old_node, void, size), size);
60 } /* default_copy_attr */
63 * Copies all Call attributes stored in the old node to the new node.
66 call_copy_attr(const ir_node *old_node, ir_node *new_node) {
67 default_copy_attr(old_node, new_node);
68 remove_Call_callee_arr(new_node);
69 } /* call_copy_attr */
72 * Copies all Block attributes stored in the old node to the new node.
75 block_copy_attr(const ir_node *old_node, ir_node *new_node) {
76 ir_graph *irg = current_ir_graph;
78 default_copy_attr(old_node, new_node);
79 new_node->attr.block.phis = NULL;
80 new_node->attr.block.cg_backedge = NULL;
81 new_node->attr.block.backedge = new_backedge_arr(irg->obst, get_irn_arity(new_node));
82 INIT_LIST_HEAD(&new_node->attr.block.succ_head);
83 } /* block_copy_attr */
86 * Copies all phi attributes stored in old node to the new node
89 phi_copy_attr(const ir_node *old_node, ir_node *new_node) {
90 ir_graph *irg = current_ir_graph;
92 default_copy_attr(old_node, new_node);
93 new_node->attr.phi.next = NULL;
94 new_node->attr.phi.u.backedge = new_backedge_arr(irg->obst, get_irn_arity(new_node));
98 * Copies all filter attributes stored in old node to the new node
101 filter_copy_attr(const ir_node *old_node, ir_node *new_node) {
102 ir_graph *irg = current_ir_graph;
104 default_copy_attr(old_node, new_node);
105 new_node->attr.filter.backedge = new_backedge_arr(irg->obst, get_irn_arity(new_node));
109 * Copies all ASM attributes stored in old node to the new node
112 ASM_copy_attr(const ir_node *old_node, ir_node *new_node) {
113 ir_graph *irg = current_ir_graph;
115 default_copy_attr(old_node, new_node);
116 new_node->attr.assem.inputs = DUP_ARR_D(ir_asm_constraint, irg->obst, old_node->attr.assem.inputs);
117 new_node->attr.assem.outputs = DUP_ARR_D(ir_asm_constraint, irg->obst, old_node->attr.assem.outputs);
118 new_node->attr.assem.clobber = DUP_ARR_D(ir_asm_constraint, irg->obst, old_node->attr.assem.clobber);
122 * Sets the default copy_attr operation for an ir_ops
124 * @param code the opcode for the default operation
125 * @param ops the operations initialized
130 static ir_op_ops *firm_set_default_copy_attr(ir_opcode code, ir_op_ops *ops) {
133 ops->copy_attr = call_copy_attr;
136 ops->copy_attr = block_copy_attr;
139 ops->copy_attr = phi_copy_attr;
142 ops->copy_attr = filter_copy_attr;
145 ops->copy_attr = ASM_copy_attr;
148 /* not allowed to be NULL */
149 if (! ops->copy_attr)
150 ops->copy_attr = default_copy_attr;
153 } /* firm_set_default_copy_attr */
155 /* Creates a new ir operation. */
157 new_ir_op(unsigned code, const char *name, op_pin_state p,
158 unsigned flags, op_arity opar, int op_index, size_t attr_size,
159 const ir_op_ops *ops)
161 ir_op *res = XMALLOCZ(ir_op);
164 res->name = new_id_from_chars(name, strlen(name));
166 res->attr_size = attr_size;
169 res->op_index = op_index;
173 memcpy(&res->ops, ops, sizeof(res->ops));
174 else /* no given ops, set all operations to NULL */
175 memset(&res->ops, 0, sizeof(res->ops));
177 firm_set_default_operations(code, &res->ops);
178 firm_set_default_copy_attr(code, &res->ops);
179 firm_set_default_verifyer(code, &res->ops);
180 firm_set_default_reassoc(code, &res->ops);
188 void free_ir_op(ir_op *code) {
189 hook_free_ir_op(code);
191 remove_irp_opcode(code);
195 /* Returns the string for the opcode. */
196 const char *get_op_name (const ir_op *op) {
197 return get_id_str(op->name);
200 unsigned (get_op_code)(const ir_op *op){
201 return _get_op_code(op);
204 ident *(get_op_ident)(const ir_op *op){
205 return _get_op_ident(op);
208 const char *get_op_pin_state_name(op_pin_state s) {
210 #define XXX(s) case s: return #s
211 XXX(op_pin_state_floats);
212 XXX(op_pin_state_pinned);
213 XXX(op_pin_state_exc_pinned);
214 XXX(op_pin_state_mem_pinned);
218 } /* get_op_pin_state_name */
220 op_pin_state (get_op_pinned)(const ir_op *op) {
221 return _get_op_pinned(op);
222 } /* get_op_pinned */
224 /* Sets op_pin_state_pinned in the opcode. Setting it to floating has no effect
225 for Phi, Block and control flow nodes. */
226 void set_op_pinned(ir_op *op, op_pin_state pinned) {
227 if (op == op_Block || op == op_Phi || is_op_cfopcode(op)) return;
228 op->pin_state = pinned;
229 } /* set_op_pinned */
231 /* retrieve the next free opcode */
232 unsigned get_next_ir_opcode(void) {
234 } /* get_next_ir_opcode */
236 /* Returns the next free n IR opcode number, allows to register a bunch of user ops */
237 unsigned get_next_ir_opcodes(unsigned num) {
238 unsigned base = next_iro;
241 } /* get_next_ir_opcodes */
243 /* Returns the generic function pointer from an ir operation. */
244 op_func (get_generic_function_ptr)(const ir_op *op) {
245 return _get_generic_function_ptr(op);
246 } /* get_generic_function_ptr */
248 /* Store a generic function pointer into an ir operation. */
249 void (set_generic_function_ptr)(ir_op *op, op_func func) {
250 _set_generic_function_ptr(op, func);
251 } /* set_generic_function_ptr */
253 /* Returns the ir_op_ops of an ir_op. */
254 const ir_op_ops *(get_op_ops)(const ir_op *op) {
255 return _get_op_ops(op);
258 irop_flags get_op_flags(const ir_op *op) {
262 #include "gen_irop.c.inl"