1 /* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
2 ** All rights reserved.
4 ** Authors: Martin Trapp, Christian Schaefer
6 ** declarations of an ir node
21 /** Global flags. Set these by autoconf?? **/
22 /* If this is defined debuging aids are created, e.g. a field in
23 ir_node uniquely numbering the nodes. */
24 /* @@@???? this is also set in firm.h */
30 /* projection numbers of compare. */
35 Le, /* less or equal */
37 Ge, /* greater or equal */
38 Lg, /* less or greater */
39 Leg, /* less, equal or greater = ordered */
41 Ue, /* unordered or equal */
42 Ul, /* unordered or less */
43 Ule, /* unordered, less or equal */
44 Ug, /* unordered or greater */
45 Uge, /* unordered, greater or equal */
46 Ne, /* unordered, less or greater = not equal */
48 not_mask = Leg /* bits to flip to negate comparison */
52 get_pnc_string(int pnc);
55 get_negated_pnc(int pnc);
58 /* projection numbers for result of Start node. */
60 pns_initial_exec, /* Projection on an executable, the initial control
62 pns_global_store, /* Projection on the global store */
63 pns_frame_base, /* Projection on the frame base */
64 pns_globals, /* Projection on the pointer to the data segment
65 containing _all_ global entities. */
66 pns_args /* Projection on all arguments */
69 /** ir node attributes **/
70 /* Block attributes */
72 unsigned long block_visited; /* for the walker that walks over all blocks. */
73 /* Attributes private to construction: */
74 bool matured; /* if set, all in-nodes of the block are fixed */
75 struct ir_node **graph_arr; /* array to store all parameters */
78 /* SymConst attributes */
79 /* This enum names the three different kinds of symbolic Constants
80 represented by SymConst. The content of the attribute type_or_id
81 depends on this tag. */
83 type_tag, /* The SymConst is a type tag for the given type.
85 size, /* The SymConst is the size of the given type.
87 linkage_ptr_info /* The SymConst is a symbolic pointer to be filled in
88 by the linker. Type_or_id is ident */
91 /* This union contains the symbolic information represented by the node */
104 static_linkage, /* entity is used internal and not visible out of this
106 external_linkage, /* */
111 entity *ent; /* entity to select */
112 linkage_type ltyp; /* linkage type of the entity */
115 /* Alloc attributes */
117 stack_alloc, /* Alloc allocates the object on the stack. */
118 heap_alloc /* Alloc allocates the object on the heap. */
122 type *type; /* Type of the allocated object. */
123 where_alloc where; /* stack, heap or other managed part of memory */
126 /* Some irnodes just have one attribute, these are stored here,
127 some have more. Their name is 'irnodename_attr' */
129 block_attr block; /* For Block: Fields needed to construct it */
130 struct tarval *con; /* For Const: contains the value of the constant */
131 symconst_attr i; /* For SymConst. */
132 sel_attr s; /* For Sel. */
133 type_method *call; /* For Call: pointer to the type of the method to call */
134 long proj; /* For Proj: contains the result position to project */
135 alloc_attr a; /* For Alloc. */
136 type *f; /* For Free. */
137 int phi0_pos; /* For Phi. Used to remember the value defined by
138 this Phi node. Needed when the Phi is completed
139 to call get_r_internal_value to find the
140 predecessors. If this attribute is set, the Phi
141 node takes the role of the obsolete Phi0 node,
142 therefore the name. */
146 /* common structure of an irnode */
147 /* if the node has some attributes, they are stored in attr */
150 firm_kind kind; /* distinguishes this node from others */
151 ir_op *op; /* Opcode of this node. */
152 ir_mode *mode; /* Mode of this node. */
153 unsigned long visited; /* visited counter for walks of the graph */
154 struct ir_node **in; /* array with predecessors / operands */
155 struct ir_node *link; /* for linking nodes somehow to a list, e.g.
156 used while construction to link Phi0 nodes and
157 during optimization to link to nodes that
158 shall replace a node. */
160 int node_nr; /* a unique node number for each node to make output
163 attr attr; /* attribute of this node. Depends on opcode. */
164 /* Must be last field of struct ir_node. */
168 /* The typedefiniton of ir_node is also in irgraph.h to resolve
169 recursion between irnode.h and irgraph.h */
170 #ifndef _IR_NODE_TYPEDEF_
171 #define _IR_NODE_TYPEDEF_
172 typedef struct ir_node ir_node;
175 /* irnode constructor */
176 /* Create a new irnode in irg, with an op, mode, arity and */
177 /* some incoming irnodes. */
178 /* If arity is negative, a node with a dynamic array is created. */
181 new_ir_node (ir_graph *irg,
189 /* Print IR-Nodes with attributes */
190 /* @@@@ brauchen wir dienoch? dann fliegt ev. das xprint raus?*/
191 int ir_node_print (XP_PAR1, const xprintf_info *, XP_PARN);
194 /** manipulate the fields of ir_node **/
196 /* returns the number of predecessors without the block predecessor: */
197 int get_irn_arity (ir_node *node);
198 /* returns the array with the ins: */
199 inline ir_node **get_irn_in (ir_node *node);
200 /* to iterate through the predecessors without touching the array. No
201 order of predecessors guaranteed.
202 To iterate over the operands iterate from 0 to i < get_irn_arity(),
203 to iterate includind the Block predecessor iterate from i = -1 to
204 i < get_irn_arity. */
205 /* Access predecessor n */
206 inline ir_node *get_irn_n (ir_node *node, int n);
207 inline void set_irn_n (ir_node *node, int n, ir_node *in);
208 /* Get the mode struct. */
209 inline ir_mode *get_irn_mode (ir_node *node);
210 /* Get the mode-enum modecode */
211 inline modecode get_irn_modecode (ir_node *node);
212 /* Get the ident for a string representation of the mode */
213 inline ident *get_irn_modename (ir_node *node);
214 /* Access the opcode struct of the node */
215 inline ir_op *get_irn_op (ir_node *node);
216 inline void set_irn_op (ir_node *node, ir_op *op);
217 /* Get the opcode-enum of the node */
218 inline opcode get_irn_opcode (ir_node *node);
219 /* Get the ident for a string representation of the opcode */
220 inline ident *get_irn_opname (ir_node *node);
221 inline void set_irn_visited (ir_node *node, unsigned long visited);
222 inline unsigned long get_irn_visited (ir_node *node);
223 inline void set_irn_link (ir_node *node, ir_node *link);
224 inline ir_node *get_irn_link (ir_node *node);
227 /* Outputs a unique number for this node */
228 inline long get_irn_node_nr(ir_node *node);
231 /** access attributes directly **/
232 inline tarval *get_irn_const_attr (ir_node *node);
233 inline long get_irn_proj_attr (ir_node *node);
234 inline alloc_attr get_irn_alloc_attr (ir_node *node);
235 inline type *get_irn_free_attr (ir_node *node);
236 inline symconst_attr get_irn_symconst_attr (ir_node *node);
237 type_method *get_irn_call_attr (ir_node *node);
238 sel_attr get_irn_sel_attr (ir_node *node);
239 int get_irn_phi_attr (ir_node *node);
240 block_attr get_irn_return_attr (ir_node *node);
242 /** manipulate fields of individual nodes **/
244 /* this works for all except Block */
245 inline ir_node *get_nodes_Block (ir_node *node);
246 inline void set_nodes_Block (ir_node *node, ir_node *block);
247 inline ir_node **get_Block_cfgpred_arr (ir_node *node);
248 int get_Block_n_cfgpreds (ir_node *node);
249 /* inline void set_Block_n_cfgpreds (ir_node *node, int n_preds); */
251 inline ir_node *get_Block_cfgpred (ir_node *node, int pos);
252 inline void set_Block_cfgpred (ir_node *node, int pos, ir_node *pred);
253 inline bool get_Block_matured (ir_node *node);
254 inline void set_Block_matured (ir_node *node, bool matured);
255 inline unsigned long get_Block_block_visited (ir_node *node);
256 inline void set_Block_block_visited (ir_node *node, unsigned long visit);
257 inline ir_node *get_Block_graph_arr (ir_node *node, int pos);
258 inline void set_Block_graph_arr (ir_node *node, int pos, ir_node *value);
260 inline ir_node *get_Cond_selector (ir_node *node);
261 inline void set_Cond_selector (ir_node *node, ir_node *selector);
263 inline ir_node *get_Return_mem (ir_node *node);
264 inline void set_Return_mem (ir_node *node, ir_node *mem);
265 inline ir_node **get_Return_res_arr (ir_node *node);
266 inline int get_Return_n_res (ir_node *node);
267 /*inline void set_Return_n_res (ir_node *node, int results); */
268 inline ir_node *get_Return_res (ir_node *node, int pos);
269 inline void set_Return_res (ir_node *node, int pos, ir_node *res);
271 inline ir_node *get_Raise_mem (ir_node *node);
272 inline void set_Raise_mem (ir_node *node, ir_node *mem);
273 inline ir_node *get_Raise_exo_ptr (ir_node *node); /* PoinTeR to EXception Object */
274 inline void set_Raise_exo_ptr (ir_node *node, ir_node *exoptr);
276 inline tarval *get_Const_tarval (ir_node *node);
277 inline void set_Const_tarval (ir_node *node, tarval *con);
279 inline symconst_kind get_SymConst_kind (ir_node *node);
280 inline void set_SymConst_kind (ir_node *node, symconst_kind num);
281 inline type *get_SymConst_type (ir_node *node);
282 inline void set_SymConst_type (ir_node *node, type *type);
283 inline ident *get_SymConst_ptrinfo (ir_node *node);
284 inline void set_SymConst_ptrinfo (ir_node *node, ident *ptrinfo);
286 inline ir_node *get_Sel_mem (ir_node *node);
287 inline void set_Sel_mem (ir_node *node, ir_node *mem);
288 inline ir_node *get_Sel_ptr (ir_node *node); /* ptr to the object to select from */
289 inline void set_Sel_ptr (ir_node *node, ir_node *ptr);
290 inline ir_node **get_Sel_index_arr (ir_node *node);
291 inline int get_Sel_n_index (ir_node *node);
292 /*inline void set_Sel_n_index (ir_node *node, int n_index); */
293 inline ir_node *get_Sel_index (ir_node *node, int pos);
294 inline void set_Sel_index (ir_node *node, int pos, ir_node *index);
295 inline entity *get_Sel_entity (ir_node *node); /* entity to select */
296 inline void set_Sel_entity (ir_node *node, entity *ent);
297 inline linkage_type get_Sel_linkage_type (ir_node *node);
298 inline void set_Sel_linkage_type (ir_node *node, linkage_type lt);
300 inline ir_node *get_Call_mem (ir_node *node);
301 inline void set_Call_mem (ir_node *node, ir_node *mem);
302 inline ir_node *get_Call_ptr (ir_node *node);
303 inline void set_Call_ptr (ir_node *node, ir_node *ptr);
304 inline ir_node **get_Call_param_arr (ir_node *node);
305 inline int get_Call_arity (ir_node *node);
306 /* inline void set_Call_arity (ir_node *node, ir_node *arity); */
307 inline ir_node *get_Call_param (ir_node *node, int pos);
308 inline void set_Call_param (ir_node *node, int pos, ir_node *param);
309 inline type_method *get_Call_type (ir_node *node);
310 inline void set_Call_type (ir_node *node, type_method *type);
312 /* For unary and binary arithmetic operations the access to the
313 operands can be factored out. Left is the first, right the
314 second arithmetic value as listed in tech report 1999-44.
315 unops are: Minus, Abs, Not, Conv
316 binops are: Add, Sub, Mul, Quot, DivMod, Div, Mod, And, Or, Eor, Shl,
317 Shr, Shrs, Rot, Cmp */
318 inline int is_unop (ir_node *node);
319 inline ir_node *get_unop_op (ir_node *node);
320 inline void set_unop_op (ir_node *node, ir_node *op);
321 inline int is_binop (ir_node *node);
322 inline ir_node *get_binop_left (ir_node *node);
323 inline void set_binop_left (ir_node *node, ir_node *left);
324 inline ir_node *get_binop_right (ir_node *node);
325 inline void set_binop_right (ir_node *node, ir_node *right);
327 inline ir_node *get_Add_left (ir_node *node);
328 inline void set_Add_left (ir_node *node, ir_node *left);
329 inline ir_node *get_Add_right (ir_node *node);
330 inline void set_Add_right (ir_node *node, ir_node *right);
332 inline ir_node *get_Sub_left (ir_node *node);
333 inline void set_Sub_left (ir_node *node, ir_node *left);
334 inline ir_node *get_Sub_right (ir_node *node);
335 inline void set_Sub_right (ir_node *node, ir_node *right);
337 inline ir_node *get_Minus_op (ir_node *node);
338 inline void set_Minus_op (ir_node *node, ir_node *op);
340 inline ir_node *get_Mul_left (ir_node *node);
341 inline void set_Mul_left (ir_node *node, ir_node *left);
342 inline ir_node *get_Mul_right (ir_node *node);
343 inline void set_Mul_right (ir_node *node, ir_node *right);
345 inline ir_node *get_Quot_left (ir_node *node);
346 inline void set_Quot_left (ir_node *node, ir_node *left);
347 inline ir_node *get_Quot_right (ir_node *node);
348 inline void set_Quot_right (ir_node *node, ir_node *right);
349 inline ir_node *get_Quot_mem (ir_node *node);
350 inline void set_Quot_mem (ir_node *node, ir_node *mem);
352 inline ir_node *get_DivMod_left (ir_node *node);
353 inline void set_DivMod_left (ir_node *node, ir_node *left);
354 inline ir_node *get_DivMod_right (ir_node *node);
355 inline void set_DivMod_right (ir_node *node, ir_node *right);
356 inline ir_node *get_DivMod_mem (ir_node *node);
357 inline void set_DivMod_mem (ir_node *node, ir_node *mem);
359 inline ir_node *get_Div_left (ir_node *node);
360 inline void set_Div_left (ir_node *node, ir_node *left);
361 inline ir_node *get_Div_right (ir_node *node);
362 inline void set_Div_right (ir_node *node, ir_node *right);
363 inline ir_node *get_Div_mem (ir_node *node);
364 inline void set_Div_mem (ir_node *node, ir_node *mem);
366 inline ir_node *get_Mod_left (ir_node *node);
367 inline void set_Mod_left (ir_node *node, ir_node *left);
368 inline ir_node *get_Mod_right (ir_node *node);
369 inline void set_Mod_right (ir_node *node, ir_node *right);
370 inline ir_node *get_Mod_mem (ir_node *node);
371 inline void set_Mod_mem (ir_node *node, ir_node *mem);
373 inline ir_node *get_Abs_op (ir_node *node);
374 inline void set_Abs_op (ir_node *node, ir_node *op);
376 inline ir_node *get_And_left (ir_node *node);
377 inline void set_And_left (ir_node *node, ir_node *left);
378 inline ir_node *get_And_right (ir_node *node);
379 inline void set_And_right (ir_node *node, ir_node *right);
381 inline ir_node *get_Or_left (ir_node *node);
382 inline void set_Or_left (ir_node *node, ir_node *left);
383 inline ir_node *get_Or_right (ir_node *node);
384 inline void set_Or_right (ir_node *node, ir_node *right);
386 inline ir_node *get_Eor_left (ir_node *node);
387 inline void set_Eor_left (ir_node *node, ir_node *left);
388 inline ir_node *get_Eor_right (ir_node *node);
389 inline void set_Eor_right (ir_node *node, ir_node *right);
391 inline ir_node *get_Not_op (ir_node *node);
392 inline void set_Not_op (ir_node *node, ir_node *op);
394 inline ir_node *get_Cmp_left (ir_node *node);
395 inline void set_Cmp_left (ir_node *node, ir_node *left);
396 inline ir_node *get_Cmp_right (ir_node *node);
397 inline void set_Cmp_right (ir_node *node, ir_node *right);
399 inline ir_node *get_Shl_left (ir_node *node);
400 inline void set_Shl_left (ir_node *node, ir_node *left);
401 inline ir_node *get_Shl_right (ir_node *node);
402 inline void set_Shl_right (ir_node *node, ir_node *right);
404 inline ir_node *get_Shr_left (ir_node *node);
405 inline void set_Shr_left (ir_node *node, ir_node *left);
406 inline ir_node *get_Shr_right (ir_node *node);
407 inline void set_Shr_right (ir_node *node, ir_node *right);
409 inline ir_node *get_Shrs_left (ir_node *node);
410 inline void set_Shrs_left (ir_node *node, ir_node *left);
411 inline ir_node *get_Shrs_right (ir_node *node);
412 inline void set_Shrs_right (ir_node *node, ir_node *right);
414 inline ir_node *get_Rot_left (ir_node *node);
415 inline void set_Rot_left (ir_node *node, ir_node *left);
416 inline ir_node *get_Rot_right (ir_node *node);
417 inline void set_Rot_right (ir_node *node, ir_node *right);
419 inline ir_node *get_Conv_op (ir_node *node);
420 inline void set_Conv_op (ir_node *node, ir_node *op);
422 inline ir_node **get_Phi_preds_arr (ir_node *node);
423 inline int get_Phi_n_preds (ir_node *node);
424 /* inline void set_Phi_n_preds (ir_node *node, int n_preds); */
425 inline ir_node *get_Phi_pred (ir_node *node, int pos);
426 inline void set_Phi_pred (ir_node *node, int pos, ir_node *pred);
428 inline ir_node *get_Load_mem (ir_node *node);
429 inline void set_Load_mem (ir_node *node, ir_node *mem);
430 inline ir_node *get_Load_ptr (ir_node *node);
431 inline void set_Load_ptr (ir_node *node, ir_node *ptr);
433 inline ir_node *get_Store_mem (ir_node *node);
434 inline void set_Store_mem (ir_node *node, ir_node *mem);
435 inline ir_node *get_Store_ptr (ir_node *node);
436 inline void set_Store_ptr (ir_node *node, ir_node *ptr);
437 inline ir_node *get_Store_value (ir_node *node);
438 inline void set_Store_value (ir_node *node, ir_node *value);
440 inline ir_node *get_Alloc_mem (ir_node *node);
441 inline void set_Alloc_mem (ir_node *node, ir_node *mem);
442 inline ir_node *get_Alloc_size (ir_node *node);
443 inline void set_Alloc_size (ir_node *node, ir_node *size);
444 inline type *get_Alloc_type (ir_node *node);
445 inline void set_Alloc_type (ir_node *node, type *type);
446 inline where_alloc get_Alloc_where (ir_node *node);
447 inline void set_Alloc_where (ir_node *node, where_alloc where);
449 inline ir_node *get_Free_mem (ir_node *node);
450 inline void set_Free_mem (ir_node *node, ir_node *mem);
451 inline ir_node *get_Free_ptr (ir_node *node);
452 inline void set_Free_ptr (ir_node *node, ir_node *ptr);
453 inline ir_node *get_Free_size (ir_node *node);
454 inline void set_Free_size (ir_node *node, ir_node *size);
455 inline type *get_Free_type (ir_node *node);
456 inline void set_Free_type (ir_node *node, type *type);
458 inline ir_node **get_Sync_preds_arr (ir_node *node);
459 inline int get_Sync_n_preds (ir_node *node);
460 /* inline void set_Sync_n_preds (ir_node *node, int n_preds); */
461 inline ir_node *get_Sync_pred (ir_node *node, int pos);
462 inline void set_Sync_pred (ir_node *node, int pos, ir_node *pred);
464 inline ir_node *get_Proj_pred (ir_node *node);
465 inline void set_Proj_pred (ir_node *node, ir_node *pred);
466 inline long get_Proj_proj (ir_node *node);
467 inline void set_Proj_proj (ir_node *node, long proj);
469 inline ir_node **get_Tuple_preds_arr (ir_node *node);
470 inline int get_Tuple_n_preds (ir_node *node);
471 /* inline void set_Tuple_n_preds (ir_node *node, int n_preds); */
472 inline ir_node *get_Tuple_pred (ir_node *node, int pos);
473 inline void set_Tuple_pred (ir_node *node, int pos, ir_node *pred);
475 inline ir_node *get_Id_pred (ir_node *node);
476 inline void set_Id_pred (ir_node *node, ir_node *pred);
480 /******************************************************************/
481 /* Auxiliary routines */
482 /******************************************************************/
484 /* returns operand of node if node is a Proj. */
485 inline ir_node *skip_Proj (ir_node *node);
486 /* returns operand of node if node is a Id */
487 inline ir_node *skip_nop (ir_node *node);
488 /* returns true if node is a Bad node. */
489 inline int is_Bad (ir_node *node);
490 /* returns true if the node is not a Block */
491 inline int is_no_Block (ir_node *node);
492 /* Returns true if the operation manipulates control flow:
493 Start, End, Jmp, Cond, Return, Raise */
494 int is_cfop(ir_node *node);
495 /* Returns true if the operation can change the control flow because
497 int is_fragile_op(ir_node *node);
501 /* Makros for debugging the libfirm */
505 #define DDMSG printf("%s(l.%i)\n", __FUNCTION__, __LINE__)
506 #define DDMSG1(X) printf("%s(l.%i) %s\n", __FUNCTION__, __LINE__, \
507 ID_TO_STR(get_irn_opname(X)))
508 #define DDMSG2(X) printf("%s(l.%i) %s: %ld\n", __FUNCTION__, __LINE__, \
509 ID_TO_STR(get_irn_opname(X)), get_irn_node_nr(X))
513 # endif /* _IRNODE_H_ */