3 * File name: ir/ir/ircons.c
4 * Purpose: Various irnode constructors. Automatic construction
5 * of SSA representation.
6 * Author: Martin Trapp, Christian Schaefer
7 * Modified by: Goetz Lindenmaier, Boris Boesler
10 * Copyright: (c) 1998-2003 Universität Karlsruhe
11 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
18 # include "irgraph_t.h"
19 # include "irnode_t.h"
20 # include "irmode_t.h"
22 # include "firm_common_t.h"
28 /* memset belongs to string.h */
30 # include "irbackedge_t.h"
31 # include "irflag_t.h"
33 #if USE_EXPLICIT_PHI_IN_STACK
34 /* A stack needed for the automatic Phi node construction in constructor
35 Phi_in. Redefinition in irgraph.c!! */
40 typedef struct Phi_in_stack Phi_in_stack;
44 * language dependant initialization variable
46 static default_initialize_local_variable_func_t *default_initialize_local_variable = NULL;
48 /*** ******************************************** */
49 /** privat interfaces, for professional use only */
51 /* Constructs a Block with a fixed number of predecessors.
52 Does not set current_block. Can not be used with automatic
53 Phi node construction. */
55 new_rd_Block (dbg_info* db, ir_graph *irg, int arity, ir_node **in)
59 res = new_ir_node (db, irg, NULL, op_Block, mode_BB, arity, in);
60 set_Block_matured(res, 1);
61 set_Block_block_visited(res, 0);
63 /* res->attr.block.exc = exc_normal; */
64 /* res->attr.block.handler_entry = 0; */
65 res->attr.block.irg = irg;
66 res->attr.block.backedge = new_backedge_arr(irg->obst, arity);
67 res->attr.block.in_cg = NULL;
68 res->attr.block.cg_backedge = NULL;
70 irn_vrfy_irg (res, irg);
75 new_rd_Start (dbg_info* db, ir_graph *irg, ir_node *block)
79 res = new_ir_node (db, irg, block, op_Start, mode_T, 0, NULL);
80 /* res->attr.start.irg = irg; */
82 irn_vrfy_irg (res, irg);
87 new_rd_End (dbg_info* db, ir_graph *irg, ir_node *block)
91 res = new_ir_node (db, irg, block, op_End, mode_X, -1, NULL);
93 irn_vrfy_irg (res, irg);
97 /* Creates a Phi node with all predecessors. Calling this constructor
98 is only allowed if the corresponding block is mature. */
100 new_rd_Phi (dbg_info* db, ir_graph *irg, ir_node *block, int arity, ir_node **in, ir_mode *mode)
104 bool has_unknown = false;
106 /* Don't assert that block matured: the use of this constructor is strongly
108 if ( get_Block_matured(block) )
109 assert( intern_get_irn_arity(block) == arity );
111 res = new_ir_node (db, irg, block, op_Phi, mode, arity, in);
113 res->attr.phi_backedge = new_backedge_arr(irg->obst, arity);
115 for (i = arity-1; i >= 0; i--)
116 if (intern_get_irn_op(in[i]) == op_Unknown) {
121 if (!has_unknown) res = optimize_node (res);
122 irn_vrfy_irg (res, irg);
124 /* Memory Phis in endless loops must be kept alive.
125 As we can't distinguish these easily we keep all of them alive. */
126 if ((res->op == op_Phi) && (mode == mode_M))
127 add_End_keepalive(irg->end, res);
132 new_rd_Const_type (dbg_info* db, ir_graph *irg, ir_node *block, ir_mode *mode, tarval *con, type *tp)
135 res = new_ir_node (db, irg, block, op_Const, mode, 0, NULL);
136 res->attr.con.tv = con;
137 set_Const_type(res, tp); /* Call method because of complex assertion. */
138 res = optimize_node (res);
139 assert(get_Const_type(res) == tp);
140 irn_vrfy_irg (res, irg);
143 res = local_optimize_newby (res);
150 new_rd_Const (dbg_info* db, ir_graph *irg, ir_node *block, ir_mode *mode, tarval *con)
152 type *tp = unknown_type;
153 if (tarval_is_entity(con))
154 tp = find_pointer_type_to_type(get_entity_type(get_tarval_entity(con)));
155 return new_rd_Const_type (db, irg, block, mode, con, tp);
159 new_rd_Id (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *val, ir_mode *mode)
164 res = new_ir_node (db, irg, block, op_Id, mode, 1, in);
165 res = optimize_node (res);
166 irn_vrfy_irg (res, irg);
171 new_rd_Proj (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *arg, ir_mode *mode,
177 res = new_ir_node (db, irg, block, op_Proj, mode, 1, in);
178 res->attr.proj = proj;
181 assert(get_Proj_pred(res));
182 assert(get_nodes_Block(get_Proj_pred(res)));
184 res = optimize_node (res);
186 irn_vrfy_irg (res, irg);
192 new_rd_defaultProj (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *arg,
196 assert(arg->op == op_Cond);
197 arg->attr.c.kind = fragmentary;
198 arg->attr.c.default_proj = max_proj;
199 res = new_rd_Proj (db, irg, block, arg, mode_X, max_proj);
204 new_rd_Conv (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *op, ir_mode *mode)
209 res = new_ir_node (db, irg, block, op_Conv, mode, 1, in);
210 res = optimize_node (res);
211 irn_vrfy_irg (res, irg);
216 new_rd_Cast (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *op, type *to_tp)
219 res = new_ir_node (db, irg, block, op_Cast, intern_get_irn_mode(op), 1, &op);
220 res->attr.cast.totype = to_tp;
221 res = optimize_node (res);
222 irn_vrfy_irg (res, irg);
227 new_rd_Tuple (dbg_info* db, ir_graph *irg, ir_node *block, int arity, ir_node **in)
231 res = new_ir_node (db, irg, block, op_Tuple, mode_T, arity, in);
232 res = optimize_node (res);
233 irn_vrfy_irg (res, irg);
238 new_rd_Add (dbg_info* db, ir_graph *irg, ir_node *block,
239 ir_node *op1, ir_node *op2, ir_mode *mode)
245 res = new_ir_node (db, irg, block, op_Add, mode, 2, in);
246 res = optimize_node (res);
247 irn_vrfy_irg (res, irg);
252 new_rd_Sub (dbg_info* db, ir_graph *irg, ir_node *block,
253 ir_node *op1, ir_node *op2, ir_mode *mode)
259 res = new_ir_node (db, irg, block, op_Sub, mode, 2, in);
260 res = optimize_node (res);
261 irn_vrfy_irg (res, irg);
266 new_rd_Minus (dbg_info* db, ir_graph *irg, ir_node *block,
267 ir_node *op, ir_mode *mode)
272 res = new_ir_node (db, irg, block, op_Minus, mode, 1, in);
273 res = optimize_node (res);
274 irn_vrfy_irg (res, irg);
279 new_rd_Mul (dbg_info* db, ir_graph *irg, ir_node *block,
280 ir_node *op1, ir_node *op2, ir_mode *mode)
286 res = new_ir_node (db, irg, block, op_Mul, mode, 2, in);
287 res = optimize_node (res);
288 irn_vrfy_irg (res, irg);
293 new_rd_Quot (dbg_info* db, ir_graph *irg, ir_node *block,
294 ir_node *memop, ir_node *op1, ir_node *op2)
301 res = new_ir_node (db, irg, block, op_Quot, mode_T, 3, in);
302 res = optimize_node (res);
303 irn_vrfy_irg (res, irg);
308 new_rd_DivMod (dbg_info* db, ir_graph *irg, ir_node *block,
309 ir_node *memop, ir_node *op1, ir_node *op2)
316 res = new_ir_node (db, irg, block, op_DivMod, mode_T, 3, in);
317 res = optimize_node (res);
318 irn_vrfy_irg (res, irg);
323 new_rd_Div (dbg_info* db, ir_graph *irg, ir_node *block,
324 ir_node *memop, ir_node *op1, ir_node *op2)
331 res = new_ir_node (db, irg, block, op_Div, mode_T, 3, in);
332 res = optimize_node (res);
333 irn_vrfy_irg (res, irg);
338 new_rd_Mod (dbg_info* db, ir_graph *irg, ir_node *block,
339 ir_node *memop, ir_node *op1, ir_node *op2)
346 res = new_ir_node (db, irg, block, op_Mod, mode_T, 3, in);
347 res = optimize_node (res);
348 irn_vrfy_irg (res, irg);
353 new_rd_And (dbg_info* db, ir_graph *irg, ir_node *block,
354 ir_node *op1, ir_node *op2, ir_mode *mode)
360 res = new_ir_node (db, irg, block, op_And, mode, 2, in);
361 res = optimize_node (res);
362 irn_vrfy_irg (res, irg);
367 new_rd_Or (dbg_info* db, ir_graph *irg, ir_node *block,
368 ir_node *op1, ir_node *op2, ir_mode *mode)
374 res = new_ir_node (db, irg, block, op_Or, mode, 2, in);
375 res = optimize_node (res);
376 irn_vrfy_irg (res, irg);
381 new_rd_Eor (dbg_info* db, ir_graph *irg, ir_node *block,
382 ir_node *op1, ir_node *op2, ir_mode *mode)
388 res = new_ir_node (db, irg, block, op_Eor, mode, 2, in);
389 res = optimize_node (res);
390 irn_vrfy_irg (res, irg);
395 new_rd_Not (dbg_info* db, ir_graph *irg, ir_node *block,
396 ir_node *op, ir_mode *mode)
401 res = new_ir_node (db, irg, block, op_Not, mode, 1, in);
402 res = optimize_node (res);
403 irn_vrfy_irg (res, irg);
408 new_rd_Shl (dbg_info* db, ir_graph *irg, ir_node *block,
409 ir_node *op, ir_node *k, ir_mode *mode)
415 res = new_ir_node (db, irg, block, op_Shl, mode, 2, in);
416 res = optimize_node (res);
417 irn_vrfy_irg (res, irg);
422 new_rd_Shr (dbg_info* db, ir_graph *irg, ir_node *block,
423 ir_node *op, ir_node *k, ir_mode *mode)
429 res = new_ir_node (db, irg, block, op_Shr, mode, 2, in);
430 res = optimize_node (res);
431 irn_vrfy_irg (res, irg);
436 new_rd_Shrs (dbg_info* db, ir_graph *irg, ir_node *block,
437 ir_node *op, ir_node *k, ir_mode *mode)
443 res = new_ir_node (db, irg, block, op_Shrs, mode, 2, in);
444 res = optimize_node (res);
445 irn_vrfy_irg (res, irg);
450 new_rd_Rot (dbg_info* db, ir_graph *irg, ir_node *block,
451 ir_node *op, ir_node *k, ir_mode *mode)
457 res = new_ir_node (db, irg, block, op_Rot, mode, 2, in);
458 res = optimize_node (res);
459 irn_vrfy_irg (res, irg);
464 new_rd_Abs (dbg_info* db, ir_graph *irg, ir_node *block,
465 ir_node *op, ir_mode *mode)
470 res = new_ir_node (db, irg, block, op_Abs, mode, 1, in);
471 res = optimize_node (res);
472 irn_vrfy_irg (res, irg);
477 new_rd_Cmp (dbg_info* db, ir_graph *irg, ir_node *block,
478 ir_node *op1, ir_node *op2)
484 res = new_ir_node (db, irg, block, op_Cmp, mode_T, 2, in);
485 res = optimize_node (res);
486 irn_vrfy_irg (res, irg);
491 new_rd_Jmp (dbg_info* db, ir_graph *irg, ir_node *block)
494 res = new_ir_node (db, irg, block, op_Jmp, mode_X, 0, NULL);
495 res = optimize_node (res);
496 irn_vrfy_irg (res, irg);
501 new_rd_Cond (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *c)
506 res = new_ir_node (db, irg, block, op_Cond, mode_T, 1, in);
507 res->attr.c.kind = dense;
508 res->attr.c.default_proj = 0;
509 res = optimize_node (res);
510 irn_vrfy_irg (res, irg);
515 new_rd_Call (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *store,
516 ir_node *callee, int arity, ir_node **in, type *tp)
523 NEW_ARR_A (ir_node *, r_in, r_arity);
526 memcpy (&r_in[2], in, sizeof (ir_node *) * arity);
528 res = new_ir_node (db, irg, block, op_Call, mode_T, r_arity, r_in);
530 assert(is_method_type(tp));
531 set_Call_type(res, tp);
532 res->attr.call.callee_arr = NULL;
533 res = optimize_node (res);
534 irn_vrfy_irg (res, irg);
539 new_rd_Return (dbg_info* db, ir_graph *irg, ir_node *block,
540 ir_node *store, int arity, ir_node **in)
547 NEW_ARR_A (ir_node *, r_in, r_arity);
549 memcpy (&r_in[1], in, sizeof (ir_node *) * arity);
550 res = new_ir_node (db, irg, block, op_Return, mode_X, r_arity, r_in);
551 res = optimize_node (res);
552 irn_vrfy_irg (res, irg);
557 new_rd_Raise (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *store, ir_node *obj)
563 res = new_ir_node (db, irg, block, op_Raise, mode_T, 2, in);
564 res = optimize_node (res);
565 irn_vrfy_irg (res, irg);
570 new_rd_Load (dbg_info* db, ir_graph *irg, ir_node *block,
571 ir_node *store, ir_node *adr)
577 res = new_ir_node (db, irg, block, op_Load, mode_T, 2, in);
579 res = optimize_node (res);
580 irn_vrfy_irg (res, irg);
585 new_rd_Store (dbg_info* db, ir_graph *irg, ir_node *block,
586 ir_node *store, ir_node *adr, ir_node *val)
593 res = new_ir_node (db, irg, block, op_Store, mode_T, 3, in);
595 res = optimize_node (res);
597 irn_vrfy_irg (res, irg);
602 new_rd_Alloc (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *store,
603 ir_node *size, type *alloc_type, where_alloc where)
609 res = new_ir_node (db, irg, block, op_Alloc, mode_T, 2, in);
611 res->attr.a.where = where;
612 res->attr.a.type = alloc_type;
614 res = optimize_node (res);
615 irn_vrfy_irg (res, irg);
620 new_rd_Free (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *store,
621 ir_node *ptr, ir_node *size, type *free_type)
628 res = new_ir_node (db, irg, block, op_Free, mode_T, 3, in);
630 res->attr.f = free_type;
632 res = optimize_node (res);
633 irn_vrfy_irg (res, irg);
638 new_rd_Sel (dbg_info* db, ir_graph *irg, ir_node *block, ir_node *store, ir_node *objptr,
639 int arity, ir_node **in, entity *ent)
645 assert(ent != NULL && is_entity(ent) && "entity expected in Sel construction");
648 NEW_ARR_A (ir_node *, r_in, r_arity); /* uses alloca */
651 memcpy (&r_in[2], in, sizeof (ir_node *) * arity);
652 res = new_ir_node (db, irg, block, op_Sel, mode_P_mach, r_arity, r_in);
654 res->attr.s.ent = ent;
656 res = optimize_node (res);
657 irn_vrfy_irg (res, irg);
662 new_rd_InstOf (dbg_info *db, ir_graph *irg, ir_node *block, ir_node *store,
663 ir_node *objptr, type *ent)
670 NEW_ARR_A (ir_node *, r_in, r_arity);
674 res = new_ir_node (db, irg, block, op_Sel, mode_T, r_arity, r_in);
676 res->attr.io.ent = ent;
678 /* res = optimize (res);
679 * irn_vrfy_irg (res, irg); */
684 new_rd_SymConst (dbg_info* db, ir_graph *irg, ir_node *block, type_or_id_p value,
685 symconst_kind symkind)
689 if (symkind == linkage_ptr_info)
693 res = new_ir_node (db, irg, block, op_SymConst, mode, 0, NULL);
695 res->attr.i.num = symkind;
696 if (symkind == linkage_ptr_info) {
697 res->attr.i.tori.ptrinfo = (ident *)value;
699 assert ( ( (symkind == type_tag)
700 || (symkind == size))
701 && (is_type(value)));
702 res->attr.i.tori.typ = (type *)value;
704 res = optimize_node (res);
705 irn_vrfy_irg (res, irg);
710 new_rd_Sync (dbg_info* db, ir_graph *irg, ir_node *block, int arity, ir_node **in)
714 res = new_ir_node (db, irg, block, op_Sync, mode_M, arity, in);
716 res = optimize_node (res);
717 irn_vrfy_irg (res, irg);
722 new_rd_Bad (ir_graph *irg)
728 new_rd_Confirm (dbg_info *db, ir_graph *irg, ir_node *block, ir_node *val, ir_node *bound, pn_Cmp cmp)
730 ir_node *in[2], *res;
734 res = new_ir_node (db, irg, block, op_Confirm, intern_get_irn_mode(val), 2, in);
736 res->attr.confirm_cmp = cmp;
738 res = optimize_node (res);
739 irn_vrfy_irg(res, irg);
744 new_rd_Unknown (ir_graph *irg, ir_mode *m)
746 return new_ir_node (NULL, irg, irg->start_block, op_Unknown, m, 0, NULL);
750 new_rd_CallBegin (dbg_info *db, ir_graph *irg, ir_node *block, ir_node *call)
754 in[0] = get_Call_ptr(call);
755 res = new_ir_node (db, irg, block, op_CallBegin, mode_T, 1, in);
756 /* res->attr.callbegin.irg = irg; */
757 res->attr.callbegin.call = call;
758 res = optimize_node (res);
759 irn_vrfy_irg (res, irg);
764 new_rd_EndReg (dbg_info *db, ir_graph *irg, ir_node *block)
768 res = new_ir_node (db, irg, block, op_EndReg, mode_T, -1, NULL);
771 irn_vrfy_irg (res, irg);
776 new_rd_EndExcept (dbg_info *db, ir_graph *irg, ir_node *block)
780 res = new_ir_node (db, irg, block, op_EndExcept, mode_T, -1, NULL);
781 irg->end_except = res;
783 irn_vrfy_irg (res, irg);
788 new_rd_Break (dbg_info *db, ir_graph *irg, ir_node *block)
791 res = new_ir_node (db, irg, block, op_Break, mode_X, 0, NULL);
792 res = optimize_node (res);
793 irn_vrfy_irg (res, irg);
798 new_rd_Filter (dbg_info *db, ir_graph *irg, ir_node *block, ir_node *arg, ir_mode *mode,
804 res = new_ir_node (db, irg, block, op_Filter, mode, 1, in);
805 res->attr.filter.proj = proj;
806 res->attr.filter.in_cg = NULL;
807 res->attr.filter.backedge = NULL;
810 assert(get_Proj_pred(res));
811 assert(get_nodes_Block(get_Proj_pred(res)));
813 res = optimize_node (res);
815 irn_vrfy_irg (res, irg);
821 new_rd_FuncCall (dbg_info* db, ir_graph *irg, ir_node *block,
822 ir_node *callee, int arity, ir_node **in, type *tp)
829 NEW_ARR_A (ir_node *, r_in, r_arity);
831 memcpy (&r_in[1], in, sizeof (ir_node *) * arity);
833 res = new_ir_node (db, irg, block, op_FuncCall, mode_T, r_arity, r_in);
835 assert(is_method_type(tp));
836 set_FuncCall_type(res, tp);
837 res->attr.call.callee_arr = NULL;
838 res = optimize_node (res);
839 irn_vrfy_irg (res, irg);
844 INLINE ir_node *new_r_Block (ir_graph *irg, int arity, ir_node **in) {
845 return new_rd_Block(NULL, irg, arity, in);
847 INLINE ir_node *new_r_Start (ir_graph *irg, ir_node *block) {
848 return new_rd_Start(NULL, irg, block);
850 INLINE ir_node *new_r_End (ir_graph *irg, ir_node *block) {
851 return new_rd_End(NULL, irg, block);
853 INLINE ir_node *new_r_Jmp (ir_graph *irg, ir_node *block) {
854 return new_rd_Jmp(NULL, irg, block);
856 INLINE ir_node *new_r_Cond (ir_graph *irg, ir_node *block, ir_node *c) {
857 return new_rd_Cond(NULL, irg, block, c);
859 INLINE ir_node *new_r_Return (ir_graph *irg, ir_node *block,
860 ir_node *store, int arity, ir_node **in) {
861 return new_rd_Return(NULL, irg, block, store, arity, in);
863 INLINE ir_node *new_r_Raise (ir_graph *irg, ir_node *block,
864 ir_node *store, ir_node *obj) {
865 return new_rd_Raise(NULL, irg, block, store, obj);
867 INLINE ir_node *new_r_Const (ir_graph *irg, ir_node *block,
868 ir_mode *mode, tarval *con) {
869 return new_rd_Const(NULL, irg, block, mode, con);
871 INLINE ir_node *new_r_SymConst (ir_graph *irg, ir_node *block,
872 type_or_id_p value, symconst_kind symkind) {
873 return new_rd_SymConst(NULL, irg, block, value, symkind);
875 INLINE ir_node *new_r_Sel (ir_graph *irg, ir_node *block, ir_node *store,
876 ir_node *objptr, int n_index, ir_node **index,
878 return new_rd_Sel(NULL, irg, block, store, objptr, n_index, index, ent);
880 INLINE ir_node *new_r_InstOf (ir_graph *irg, ir_node *block, ir_node *store, ir_node *objptr,
882 return (new_rd_InstOf (NULL, irg, block, store, objptr, ent));
884 INLINE ir_node *new_r_Call (ir_graph *irg, ir_node *block, ir_node *store,
885 ir_node *callee, int arity, ir_node **in,
887 return new_rd_Call(NULL, irg, block, store, callee, arity, in, tp);
889 INLINE ir_node *new_r_Add (ir_graph *irg, ir_node *block,
890 ir_node *op1, ir_node *op2, ir_mode *mode) {
891 return new_rd_Add(NULL, irg, block, op1, op2, mode);
893 INLINE ir_node *new_r_Sub (ir_graph *irg, ir_node *block,
894 ir_node *op1, ir_node *op2, ir_mode *mode) {
895 return new_rd_Sub(NULL, irg, block, op1, op2, mode);
897 INLINE ir_node *new_r_Minus (ir_graph *irg, ir_node *block,
898 ir_node *op, ir_mode *mode) {
899 return new_rd_Minus(NULL, irg, block, op, mode);
901 INLINE ir_node *new_r_Mul (ir_graph *irg, ir_node *block,
902 ir_node *op1, ir_node *op2, ir_mode *mode) {
903 return new_rd_Mul(NULL, irg, block, op1, op2, mode);
905 INLINE ir_node *new_r_Quot (ir_graph *irg, ir_node *block,
906 ir_node *memop, ir_node *op1, ir_node *op2) {
907 return new_rd_Quot(NULL, irg, block, memop, op1, op2);
909 INLINE ir_node *new_r_DivMod (ir_graph *irg, ir_node *block,
910 ir_node *memop, ir_node *op1, ir_node *op2) {
911 return new_rd_DivMod(NULL, irg, block, memop, op1, op2);
913 INLINE ir_node *new_r_Div (ir_graph *irg, ir_node *block,
914 ir_node *memop, ir_node *op1, ir_node *op2) {
915 return new_rd_Div(NULL, irg, block, memop, op1, op2);
917 INLINE ir_node *new_r_Mod (ir_graph *irg, ir_node *block,
918 ir_node *memop, ir_node *op1, ir_node *op2) {
919 return new_rd_Mod(NULL, irg, block, memop, op1, op2);
921 INLINE ir_node *new_r_Abs (ir_graph *irg, ir_node *block,
922 ir_node *op, ir_mode *mode) {
923 return new_rd_Abs(NULL, irg, block, op, mode);
925 INLINE ir_node *new_r_And (ir_graph *irg, ir_node *block,
926 ir_node *op1, ir_node *op2, ir_mode *mode) {
927 return new_rd_And(NULL, irg, block, op1, op2, mode);
929 INLINE ir_node *new_r_Or (ir_graph *irg, ir_node *block,
930 ir_node *op1, ir_node *op2, ir_mode *mode) {
931 return new_rd_Or(NULL, irg, block, op1, op2, mode);
933 INLINE ir_node *new_r_Eor (ir_graph *irg, ir_node *block,
934 ir_node *op1, ir_node *op2, ir_mode *mode) {
935 return new_rd_Eor(NULL, irg, block, op1, op2, mode);
937 INLINE ir_node *new_r_Not (ir_graph *irg, ir_node *block,
938 ir_node *op, ir_mode *mode) {
939 return new_rd_Not(NULL, irg, block, op, mode);
941 INLINE ir_node *new_r_Cmp (ir_graph *irg, ir_node *block,
942 ir_node *op1, ir_node *op2) {
943 return new_rd_Cmp(NULL, irg, block, op1, op2);
945 INLINE ir_node *new_r_Shl (ir_graph *irg, ir_node *block,
946 ir_node *op, ir_node *k, ir_mode *mode) {
947 return new_rd_Shl(NULL, irg, block, op, k, mode);
949 INLINE ir_node *new_r_Shr (ir_graph *irg, ir_node *block,
950 ir_node *op, ir_node *k, ir_mode *mode) {
951 return new_rd_Shr(NULL, irg, block, op, k, mode);
953 INLINE ir_node *new_r_Shrs (ir_graph *irg, ir_node *block,
954 ir_node *op, ir_node *k, ir_mode *mode) {
955 return new_rd_Shrs(NULL, irg, block, op, k, mode);
957 INLINE ir_node *new_r_Rot (ir_graph *irg, ir_node *block,
958 ir_node *op, ir_node *k, ir_mode *mode) {
959 return new_rd_Rot(NULL, irg, block, op, k, mode);
961 INLINE ir_node *new_r_Conv (ir_graph *irg, ir_node *block,
962 ir_node *op, ir_mode *mode) {
963 return new_rd_Conv(NULL, irg, block, op, mode);
965 INLINE ir_node *new_r_Cast (ir_graph *irg, ir_node *block, ir_node *op, type *to_tp) {
966 return new_rd_Cast(NULL, irg, block, op, to_tp);
968 INLINE ir_node *new_r_Phi (ir_graph *irg, ir_node *block, int arity,
969 ir_node **in, ir_mode *mode) {
970 return new_rd_Phi(NULL, irg, block, arity, in, mode);
972 INLINE ir_node *new_r_Load (ir_graph *irg, ir_node *block,
973 ir_node *store, ir_node *adr) {
974 return new_rd_Load(NULL, irg, block, store, adr);
976 INLINE ir_node *new_r_Store (ir_graph *irg, ir_node *block,
977 ir_node *store, ir_node *adr, ir_node *val) {
978 return new_rd_Store(NULL, irg, block, store, adr, val);
980 INLINE ir_node *new_r_Alloc (ir_graph *irg, ir_node *block, ir_node *store,
981 ir_node *size, type *alloc_type, where_alloc where) {
982 return new_rd_Alloc(NULL, irg, block, store, size, alloc_type, where);
984 INLINE ir_node *new_r_Free (ir_graph *irg, ir_node *block, ir_node *store,
985 ir_node *ptr, ir_node *size, type *free_type) {
986 return new_rd_Free(NULL, irg, block, store, ptr, size, free_type);
988 INLINE ir_node *new_r_Sync (ir_graph *irg, ir_node *block, int arity, ir_node **in) {
989 return new_rd_Sync(NULL, irg, block, arity, in);
991 INLINE ir_node *new_r_Proj (ir_graph *irg, ir_node *block, ir_node *arg,
992 ir_mode *mode, long proj) {
993 return new_rd_Proj(NULL, irg, block, arg, mode, proj);
995 INLINE ir_node *new_r_defaultProj (ir_graph *irg, ir_node *block, ir_node *arg,
997 return new_rd_defaultProj(NULL, irg, block, arg, max_proj);
999 INLINE ir_node *new_r_Tuple (ir_graph *irg, ir_node *block,
1000 int arity, ir_node **in) {
1001 return new_rd_Tuple(NULL, irg, block, arity, in );
1003 INLINE ir_node *new_r_Id (ir_graph *irg, ir_node *block,
1004 ir_node *val, ir_mode *mode) {
1005 return new_rd_Id(NULL, irg, block, val, mode);
1007 INLINE ir_node *new_r_Bad (ir_graph *irg) {
1008 return new_rd_Bad(irg);
1010 INLINE ir_node *new_r_Confirm (ir_graph *irg, ir_node *block, ir_node *val, ir_node *bound, pn_Cmp cmp) {
1011 return new_rd_Confirm (NULL, irg, block, val, bound, cmp);
1013 INLINE ir_node *new_r_Unknown (ir_graph *irg, ir_mode *m) {
1014 return new_rd_Unknown(irg, m);
1016 INLINE ir_node *new_r_CallBegin (ir_graph *irg, ir_node *block, ir_node *callee) {
1017 return new_rd_CallBegin(NULL, irg, block, callee);
1019 INLINE ir_node *new_r_EndReg (ir_graph *irg, ir_node *block) {
1020 return new_rd_EndReg(NULL, irg, block);
1022 INLINE ir_node *new_r_EndExcept (ir_graph *irg, ir_node *block) {
1023 return new_rd_EndExcept(NULL, irg, block);
1025 INLINE ir_node *new_r_Break (ir_graph *irg, ir_node *block) {
1026 return new_rd_Break(NULL, irg, block);
1028 INLINE ir_node *new_r_Filter (ir_graph *irg, ir_node *block, ir_node *arg,
1029 ir_mode *mode, long proj) {
1030 return new_rd_Filter(NULL, irg, block, arg, mode, proj);
1032 INLINE ir_node *new_r_FuncCall (ir_graph *irg, ir_node *block,
1033 ir_node *callee, int arity, ir_node **in,
1035 return new_rd_FuncCall(NULL, irg, block, callee, arity, in, tp);
1039 /** ********************/
1040 /** public interfaces */
1041 /** construction tools */
1045 * - create a new Start node in the current block
1047 * @return s - pointer to the created Start node
1052 new_d_Start (dbg_info* db)
1056 res = new_ir_node (db, current_ir_graph, current_ir_graph->current_block,
1057 op_Start, mode_T, 0, NULL);
1058 /* res->attr.start.irg = current_ir_graph; */
1060 res = optimize_node (res);
1061 irn_vrfy_irg (res, current_ir_graph);
1066 new_d_End (dbg_info* db)
1069 res = new_ir_node (db, current_ir_graph, current_ir_graph->current_block,
1070 op_End, mode_X, -1, NULL);
1071 res = optimize_node (res);
1072 irn_vrfy_irg (res, current_ir_graph);
1077 /* Constructs a Block with a fixed number of predecessors.
1078 Does set current_block. Can be used with automatic Phi
1079 node construction. */
1081 new_d_Block (dbg_info* db, int arity, ir_node **in)
1085 bool has_unknown = false;
1087 res = new_rd_Block (db, current_ir_graph, arity, in);
1089 /* Create and initialize array for Phi-node construction. */
1090 res->attr.block.graph_arr = NEW_ARR_D (ir_node *, current_ir_graph->obst,
1091 current_ir_graph->n_loc);
1092 memset(res->attr.block.graph_arr, 0, sizeof(ir_node *)*current_ir_graph->n_loc);
1094 for (i = arity-1; i >= 0; i--) if (intern_get_irn_op(in[i]) == op_Unknown) has_unknown = true;
1096 if (!has_unknown) res = optimize_node (res);
1097 current_ir_graph->current_block = res;
1099 irn_vrfy_irg (res, current_ir_graph);
1104 /* ***********************************************************************/
1105 /* Methods necessary for automatic Phi node creation */
1107 ir_node *phi_merge (ir_node *block, int pos, ir_mode *mode, ir_node **nin, int ins)
1108 ir_node *get_r_value_internal (ir_node *block, int pos, ir_mode *mode);
1109 ir_node *new_rd_Phi0 (ir_graph *irg, ir_node *block, ir_mode *mode)
1110 ir_node *new_rd_Phi_in (ir_graph *irg, ir_node *block, ir_mode *mode, ir_node **in, int ins)
1112 Call Graph: ( A ---> B == A "calls" B)
1114 get_value mature_block
1122 get_r_value_internal |
1126 new_rd_Phi0 new_rd_Phi_in
1128 * *************************************************************************** */
1130 /** Creates a Phi node with 0 predecessors */
1131 static INLINE ir_node *
1132 new_rd_Phi0 (ir_graph *irg, ir_node *block, ir_mode *mode)
1135 res = new_ir_node (NULL, irg, block, op_Phi, mode, 0, NULL);
1136 irn_vrfy_irg (res, irg);
1140 /* There are two implementations of the Phi node construction. The first
1141 is faster, but does not work for blocks with more than 2 predecessors.
1142 The second works always but is slower and causes more unnecessary Phi
1144 Select the implementations by the following preprocessor flag set in
1146 #if USE_FAST_PHI_CONSTRUCTION
1148 /* This is a stack used for allocating and deallocating nodes in
1149 new_rd_Phi_in. The original implementation used the obstack
1150 to model this stack, now it is explicit. This reduces side effects.
1152 #if USE_EXPLICIT_PHI_IN_STACK
1153 INLINE Phi_in_stack *
1154 new_Phi_in_stack(void) {
1157 res = (Phi_in_stack *) malloc ( sizeof (Phi_in_stack));
1159 res->stack = NEW_ARR_F (ir_node *, 1);
1166 free_Phi_in_stack(Phi_in_stack *s) {
1167 DEL_ARR_F(s->stack);
1171 free_to_Phi_in_stack(ir_node *phi) {
1172 if (ARR_LEN(current_ir_graph->Phi_in_stack->stack) ==
1173 current_ir_graph->Phi_in_stack->pos)
1174 ARR_APP1 (ir_node *, current_ir_graph->Phi_in_stack->stack, phi);
1176 current_ir_graph->Phi_in_stack->stack[current_ir_graph->Phi_in_stack->pos] = phi;
1178 (current_ir_graph->Phi_in_stack->pos)++;
1181 static INLINE ir_node *
1182 alloc_or_pop_from_Phi_in_stack(ir_graph *irg, ir_node *block, ir_mode *mode,
1183 int arity, ir_node **in) {
1185 ir_node **stack = current_ir_graph->Phi_in_stack->stack;
1186 int pos = current_ir_graph->Phi_in_stack->pos;
1190 /* We need to allocate a new node */
1191 res = new_ir_node (db, irg, block, op_Phi, mode, arity, in);
1192 res->attr.phi_backedge = new_backedge_arr(irg->obst, arity);
1194 /* reuse the old node and initialize it again. */
1197 assert (res->kind == k_ir_node);
1198 assert (res->op == op_Phi);
1202 assert (arity >= 0);
1203 /* ???!!! How to free the old in array?? Not at all: on obstack ?!! */
1204 res->in = NEW_ARR_D (ir_node *, irg->obst, (arity+1));
1206 memcpy (&res->in[1], in, sizeof (ir_node *) * arity);
1208 (current_ir_graph->Phi_in_stack->pos)--;
1212 #endif /* USE_EXPLICIT_PHI_IN_STACK */
1214 /* Creates a Phi node with a given, fixed array **in of predecessors.
1215 If the Phi node is unnecessary, as the same value reaches the block
1216 through all control flow paths, it is eliminated and the value
1217 returned directly. This constructor is only intended for use in
1218 the automatic Phi node generation triggered by get_value or mature.
1219 The implementation is quite tricky and depends on the fact, that
1220 the nodes are allocated on a stack:
1221 The in array contains predecessors and NULLs. The NULLs appear,
1222 if get_r_value_internal, that computed the predecessors, reached
1223 the same block on two paths. In this case the same value reaches
1224 this block on both paths, there is no definition in between. We need
1225 not allocate a Phi where these path's merge, but we have to communicate
1226 this fact to the caller. This happens by returning a pointer to the
1227 node the caller _will_ allocate. (Yes, we predict the address. We can
1228 do so because the nodes are allocated on the obstack.) The caller then
1229 finds a pointer to itself and, when this routine is called again,
1232 static INLINE ir_node *
1233 new_rd_Phi_in (ir_graph *irg, ir_node *block, ir_mode *mode, ir_node **in, int ins)
1236 ir_node *res, *known;
1238 /* Allocate a new node on the obstack. This can return a node to
1239 which some of the pointers in the in-array already point.
1240 Attention: the constructor copies the in array, i.e., the later
1241 changes to the array in this routine do not affect the
1242 constructed node! If the in array contains NULLs, there will be
1243 missing predecessors in the returned node. Is this a possible
1244 internal state of the Phi node generation? */
1245 #if USE_EXPLICIT_PHI_IN_STACK
1246 res = known = alloc_or_pop_from_Phi_in_stack(irg, block, mode, ins, in);
1248 res = known = new_ir_node (NULL, irg, block, op_Phi, mode, ins, in);
1249 res->attr.phi_backedge = new_backedge_arr(irg->obst, ins);
1252 /* The in-array can contain NULLs. These were returned by
1253 get_r_value_internal if it reached the same block/definition on a
1254 second path. The NULLs are replaced by the node itself to
1255 simplify the test in the next loop. */
1256 for (i = 0; i < ins; ++i) {
1261 /* This loop checks whether the Phi has more than one predecessor.
1262 If so, it is a real Phi node and we break the loop. Else the Phi
1263 node merges the same definition on several paths and therefore is
1265 for (i = 0; i < ins; ++i)
1267 if (in[i] == res || in[i] == known) continue;
1275 /* i==ins: there is at most one predecessor, we don't need a phi node. */
1277 #if USE_EXPLICIT_PHI_IN_STACK
1278 free_to_Phi_in_stack(res);
1280 obstack_free (current_ir_graph->obst, res);
1284 res = optimize_node (res);
1285 irn_vrfy_irg (res, irg);
1288 /* return the pointer to the Phi node. This node might be deallocated! */
1293 get_r_value_internal (ir_node *block, int pos, ir_mode *mode);
1296 allocates and returns this node. The routine called to allocate the
1297 node might optimize it away and return a real value, or even a pointer
1298 to a deallocated Phi node on top of the obstack!
1299 This function is called with an in-array of proper size. **/
1301 phi_merge (ir_node *block, int pos, ir_mode *mode, ir_node **nin, int ins)
1303 ir_node *prevBlock, *res;
1306 /* This loop goes to all predecessor blocks of the block the Phi node is in
1307 and there finds the operands of the Phi node by calling
1308 get_r_value_internal. */
1309 for (i = 1; i <= ins; ++i) {
1310 assert (block->in[i]);
1311 prevBlock = block->in[i]->in[0]; /* go past control flow op to prev block */
1313 nin[i-1] = get_r_value_internal (prevBlock, pos, mode);
1316 /* After collecting all predecessors into the array nin a new Phi node
1317 with these predecessors is created. This constructor contains an
1318 optimization: If all predecessors of the Phi node are identical it
1319 returns the only operand instead of a new Phi node. If the value
1320 passes two different control flow edges without being defined, and
1321 this is the second path treated, a pointer to the node that will be
1322 allocated for the first path (recursion) is returned. We already
1323 know the address of this node, as it is the next node to be allocated
1324 and will be placed on top of the obstack. (The obstack is a _stack_!) */
1325 res = new_rd_Phi_in (current_ir_graph, block, mode, nin, ins);
1327 /* Now we now the value for "pos" and can enter it in the array with
1328 all known local variables. Attention: this might be a pointer to
1329 a node, that later will be allocated!!! See new_rd_Phi_in.
1330 If this is called in mature, after some set_value in the same block,
1331 the proper value must not be overwritten:
1333 get_value (makes Phi0, put's it into graph_arr)
1334 set_value (overwrites Phi0 in graph_arr)
1335 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
1338 if (!block->attr.block.graph_arr[pos]) {
1339 block->attr.block.graph_arr[pos] = res;
1341 /* printf(" value already computed by %s\n",
1342 get_id_str(block->attr.block.graph_arr[pos]->op->name)); */
1348 /* This function returns the last definition of a variable. In case
1349 this variable was last defined in a previous block, Phi nodes are
1350 inserted. If the part of the firm graph containing the definition
1351 is not yet constructed, a dummy Phi node is returned. */
1353 get_r_value_internal (ir_node *block, int pos, ir_mode *mode)
1356 /* There are 4 cases to treat.
1358 1. The block is not mature and we visit it the first time. We can not
1359 create a proper Phi node, therefore a Phi0, i.e., a Phi without
1360 predecessors is returned. This node is added to the linked list (field
1361 "link") of the containing block to be completed when this block is
1362 matured. (Completion will add a new Phi and turn the Phi0 into an Id
1365 2. The value is already known in this block, graph_arr[pos] is set and we
1366 visit the block the first time. We can return the value without
1367 creating any new nodes.
1369 3. The block is mature and we visit it the first time. A Phi node needs
1370 to be created (phi_merge). If the Phi is not needed, as all it's
1371 operands are the same value reaching the block through different
1372 paths, it's optimized away and the value itself is returned.
1374 4. The block is mature, and we visit it the second time. Now two
1375 subcases are possible:
1376 * The value was computed completely the last time we were here. This
1377 is the case if there is no loop. We can return the proper value.
1378 * The recursion that visited this node and set the flag did not
1379 return yet. We are computing a value in a loop and need to
1380 break the recursion without knowing the result yet.
1381 @@@ strange case. Straight forward we would create a Phi before
1382 starting the computation of it's predecessors. In this case we will
1383 find a Phi here in any case. The problem is that this implementation
1384 only creates a Phi after computing the predecessors, so that it is
1385 hard to compute self references of this Phi. @@@
1386 There is no simple check for the second subcase. Therefore we check
1387 for a second visit and treat all such cases as the second subcase.
1388 Anyways, the basic situation is the same: we reached a block
1389 on two paths without finding a definition of the value: No Phi
1390 nodes are needed on both paths.
1391 We return this information "Two paths, no Phi needed" by a very tricky
1392 implementation that relies on the fact that an obstack is a stack and
1393 will return a node with the same address on different allocations.
1394 Look also at phi_merge and new_rd_phi_in to understand this.
1395 @@@ Unfortunately this does not work, see testprogram
1396 three_cfpred_example.
1400 /* case 4 -- already visited. */
1401 if (get_irn_visited(block) == get_irg_visited(current_ir_graph)) return NULL;
1403 /* visited the first time */
1404 set_irn_visited(block, get_irg_visited(current_ir_graph));
1406 /* Get the local valid value */
1407 res = block->attr.block.graph_arr[pos];
1409 /* case 2 -- If the value is actually computed, return it. */
1410 if (res) return res;
1412 if (block->attr.block.matured) { /* case 3 */
1414 /* The Phi has the same amount of ins as the corresponding block. */
1415 int ins = intern_get_irn_arity(block);
1417 NEW_ARR_A (ir_node *, nin, ins);
1419 /* Phi merge collects the predecessors and then creates a node. */
1420 res = phi_merge (block, pos, mode, nin, ins);
1422 } else { /* case 1 */
1423 /* The block is not mature, we don't know how many in's are needed. A Phi
1424 with zero predecessors is created. Such a Phi node is called Phi0
1425 node. (There is also an obsolete Phi0 opcode.) The Phi0 is then added
1426 to the list of Phi0 nodes in this block to be matured by mature_block
1428 The Phi0 has to remember the pos of it's internal value. If the real
1429 Phi is computed, pos is used to update the array with the local
1432 res = new_rd_Phi0 (current_ir_graph, block, mode);
1433 res->attr.phi0_pos = pos;
1434 res->link = block->link;
1438 /* If we get here, the frontend missed a use-before-definition error */
1441 printf("Error: no value set. Use of undefined variable. Initializing to zero.\n");
1442 assert (mode->code >= irm_F && mode->code <= irm_P);
1443 res = new_rd_Const (NULL, current_ir_graph, block, mode,
1444 tarval_mode_null[mode->code]);
1447 /* The local valid value is available now. */
1448 block->attr.block.graph_arr[pos] = res;
1456 it starts the recursion. This causes an Id at the entry of
1457 every block that has no definition of the value! **/
1459 #if USE_EXPLICIT_PHI_IN_STACK
1461 INLINE Phi_in_stack * new_Phi_in_stack() { return NULL; }
1462 INLINE void free_Phi_in_stack(Phi_in_stack *s) { }
1465 static INLINE ir_node *
1466 new_rd_Phi_in (ir_graph *irg, ir_node *block, ir_mode *mode,
1467 ir_node **in, int ins, ir_node *phi0)
1470 ir_node *res, *known;
1472 /* Allocate a new node on the obstack. The allocation copies the in
1474 res = new_ir_node (NULL, irg, block, op_Phi, mode, ins, in);
1475 res->attr.phi_backedge = new_backedge_arr(irg->obst, ins);
1477 /* This loop checks whether the Phi has more than one predecessor.
1478 If so, it is a real Phi node and we break the loop. Else the
1479 Phi node merges the same definition on several paths and therefore
1480 is not needed. Don't consider Bad nodes! */
1483 if (phi0) DDMN(phi0); else printf(" phi0 == NULL\n");
1485 for (i=0; i < ins; ++i)
1490 //if (get_irn_op(in[i]) == op_Id)
1491 //{ printf(" "); DDMN(in[i]); }
1493 in[i] = skip_Id(in[i]); /* increasses the number of freed Phis. */
1495 /* Optimize self referencing Phis: We can't detect them yet properly, as
1496 they still refer to the Phi0 they will replace. So replace right now. */
1497 if (phi0 && in[i] == phi0) in[i] = res;
1499 { printf(" "); DDMN(in[i]); } // GL
1501 if (in[i]==res || in[i]==known || is_Bad(in[i])) continue;
1509 /* i==ins: there is at most one predecessor, we don't need a phi node. */
1511 printf(" removing Phi node\n"); // GL
1513 obstack_free (current_ir_graph->obst, res);
1516 /* A undefined value, e.g., in unreachable code. */
1520 // GL ir_node *old = res;
1521 // GL dump_node (res);
1522 res = optimize_node (res); /* This is necessary to add the node to the hash table for cse. */
1523 // GL if (res != old) { printf("optimize not useless!!! \n"); assert(0); }
1524 irn_vrfy_irg (res, irg);
1525 /* Memory Phis in endless loops must be kept alive.
1526 As we can't distinguish these easily we keep all of them alive. */
1527 if ((res->op == op_Phi) && (mode == mode_M))
1528 add_End_keepalive(irg->end, res);
1535 get_r_value_internal (ir_node *block, int pos, ir_mode *mode);
1537 #if PRECISE_EXC_CONTEXT
1539 phi_merge (ir_node *block, int pos, ir_mode *mode, ir_node **nin, int ins);
1541 /* Construct a new frag_array for node n.
1542 Copy the content from the current graph_arr of the corresponding block:
1543 this is the current state.
1544 Set ProjM(n) as current memory state.
1545 Further the last entry in frag_arr of current block points to n. This
1546 constructs a chain block->last_frag_op-> ... first_frag_op of all frag ops in the block.
1548 static INLINE ir_node ** new_frag_arr (ir_node *n)
1552 arr = NEW_ARR_D (ir_node *, current_ir_graph->obst, current_ir_graph->n_loc);
1553 memcpy(arr, current_ir_graph->current_block->attr.block.graph_arr,
1554 sizeof(ir_node *)*current_ir_graph->n_loc);
1555 /* turn off optimization before allocating Proj nodes, as res isn't
1557 opt = get_opt_optimize(); set_optimize(0);
1558 /* Here we rely on the fact that all frag ops have Memory as first result! */
1559 if (intern_get_irn_op(n) == op_Call)
1560 arr[0] = new_Proj(n, mode_M, 3);
1562 arr[0] = new_Proj(n, mode_M, 0);
1564 current_ir_graph->current_block->attr.block.graph_arr[current_ir_graph->n_loc-1] = n;
1568 static INLINE ir_node **
1569 get_frag_arr (ir_node *n) {
1570 if (intern_get_irn_op(n) == op_Call) {
1571 return n->attr.call.frag_arr;
1572 } else if (intern_get_irn_op(n) == op_Alloc) {
1573 return n->attr.a.frag_arr;
1575 return n->attr.frag_arr;
1580 set_frag_value(ir_node **frag_arr, int pos, ir_node *val) {
1581 if (!frag_arr[pos]) frag_arr[pos] = val;
1582 if (frag_arr[current_ir_graph->n_loc - 1]) {
1583 ir_node **arr = get_frag_arr(frag_arr[current_ir_graph->n_loc - 1]);
1584 set_frag_value(arr, pos, val);
1589 get_r_frag_value_internal (ir_node *block, ir_node *cfOp, int pos, ir_mode *mode) {
1593 assert(is_fragile_op(cfOp) && (get_irn_op(cfOp) != op_Bad));
1595 frag_arr = get_frag_arr(cfOp);
1596 res = frag_arr[pos];
1598 if (block->attr.block.graph_arr[pos]) {
1599 /* There was a set_value after the cfOp and no get_value before that
1600 set_value. We must build a Phi node now. */
1601 if (block->attr.block.matured) {
1602 int ins = intern_get_irn_arity(block);
1604 NEW_ARR_A (ir_node *, nin, ins);
1605 res = phi_merge(block, pos, mode, nin, ins);
1607 res = new_rd_Phi0 (current_ir_graph, block, mode);
1608 res->attr.phi0_pos = pos;
1609 res->link = block->link;
1613 /* @@@ tested by Flo: set_frag_value(frag_arr, pos, res);
1614 but this should be better: (remove comment if this works) */
1615 /* It's a Phi, we can write this into all graph_arrs with NULL */
1616 set_frag_value(block->attr.block.graph_arr, pos, res);
1618 res = get_r_value_internal(block, pos, mode);
1619 set_frag_value(block->attr.block.graph_arr, pos, res);
1627 computes the predecessors for the real phi node, and then
1628 allocates and returns this node. The routine called to allocate the
1629 node might optimize it away and return a real value.
1630 This function must be called with an in-array of proper size. **/
1632 phi_merge (ir_node *block, int pos, ir_mode *mode, ir_node **nin, int ins)
1634 ir_node *prevBlock, *prevCfOp, *res, *phi0, *phi0_all;
1637 /* If this block has no value at pos create a Phi0 and remember it
1638 in graph_arr to break recursions.
1639 Else we may not set graph_arr as there a later value is remembered. */
1641 if (!block->attr.block.graph_arr[pos]) {
1642 if (block == get_irg_start_block(current_ir_graph)) {
1643 /* Collapsing to Bad tarvals is no good idea.
1644 So we call a user-supplied routine here that deals with this case as
1645 appropriate for the given language. Sorryly the only help we can give
1646 here is the position.
1648 Even if all variables are defined before use, it can happen that
1649 we get to the start block, if a cond has been replaced by a tuple
1650 (bad, jmp). In this case we call the function needlessly, eventually
1651 generating an non existant error.
1652 However, this SHOULD NOT HAPPEN, as bad control flow nodes are intercepted
1655 if (default_initialize_local_variable)
1656 block->attr.block.graph_arr[pos] = default_initialize_local_variable(mode, pos);
1658 block->attr.block.graph_arr[pos] = new_Const(mode, tarval_bad);
1659 /* We don't need to care about exception ops in the start block.
1660 There are none by definition. */
1661 return block->attr.block.graph_arr[pos];
1663 phi0 = new_rd_Phi0(current_ir_graph, block, mode);
1664 block->attr.block.graph_arr[pos] = phi0;
1665 #if PRECISE_EXC_CONTEXT
1666 /* Set graph_arr for fragile ops. Also here we should break recursion.
1667 We could choose a cyclic path through an cfop. But the recursion would
1668 break at some point. */
1669 set_frag_value(block->attr.block.graph_arr, pos, phi0);
1674 /* This loop goes to all predecessor blocks of the block the Phi node
1675 is in and there finds the operands of the Phi node by calling
1676 get_r_value_internal. */
1677 for (i = 1; i <= ins; ++i) {
1678 prevCfOp = skip_Proj(block->in[i]);
1680 if (is_Bad(prevCfOp)) {
1681 /* In case a Cond has been optimized we would get right to the start block
1682 with an invalid definition. */
1683 nin[i-1] = new_Bad();
1686 prevBlock = block->in[i]->in[0]; /* go past control flow op to prev block */
1688 if (!is_Bad(prevBlock)) {
1689 #if PRECISE_EXC_CONTEXT
1690 if (is_fragile_op(prevCfOp) && (intern_get_irn_op (prevCfOp) != op_Bad)) {
1691 assert(get_r_frag_value_internal (prevBlock, prevCfOp, pos, mode));
1692 nin[i-1] = get_r_frag_value_internal (prevBlock, prevCfOp, pos, mode);
1695 nin[i-1] = get_r_value_internal (prevBlock, pos, mode);
1697 nin[i-1] = new_Bad();
1701 /* We want to pass the Phi0 node to the constructor: this finds additional
1702 optimization possibilities.
1703 The Phi0 node either is allocated in this function, or it comes from
1704 a former call to get_r_value_internal. In this case we may not yet
1705 exchange phi0, as this is done in mature_block. */
1707 phi0_all = block->attr.block.graph_arr[pos];
1708 if (!((get_irn_op(phi0_all) == op_Phi) &&
1709 (get_irn_arity(phi0_all) == 0) &&
1710 (get_nodes_block(phi0_all) == block)))
1716 /* After collecting all predecessors into the array nin a new Phi node
1717 with these predecessors is created. This constructor contains an
1718 optimization: If all predecessors of the Phi node are identical it
1719 returns the only operand instead of a new Phi node. */
1720 res = new_rd_Phi_in (current_ir_graph, block, mode, nin, ins, phi0_all);
1722 /* In case we allocated a Phi0 node at the beginning of this procedure,
1723 we need to exchange this Phi0 with the real Phi. */
1725 exchange(phi0, res);
1726 block->attr.block.graph_arr[pos] = res;
1727 /* Don't set_frag_value as it does not overwrite. Doesn't matter, is
1728 only an optimization. */
1734 /* This function returns the last definition of a variable. In case
1735 this variable was last defined in a previous block, Phi nodes are
1736 inserted. If the part of the firm graph containing the definition
1737 is not yet constructed, a dummy Phi node is returned. */
1739 get_r_value_internal (ir_node *block, int pos, ir_mode *mode)
1742 /* There are 4 cases to treat.
1744 1. The block is not mature and we visit it the first time. We can not
1745 create a proper Phi node, therefore a Phi0, i.e., a Phi without
1746 predecessors is returned. This node is added to the linked list (field
1747 "link") of the containing block to be completed when this block is
1748 matured. (Comlpletion will add a new Phi and turn the Phi0 into an Id
1751 2. The value is already known in this block, graph_arr[pos] is set and we
1752 visit the block the first time. We can return the value without
1753 creating any new nodes.
1755 3. The block is mature and we visit it the first time. A Phi node needs
1756 to be created (phi_merge). If the Phi is not needed, as all it's
1757 operands are the same value reaching the block through different
1758 paths, it's optimized away and the value itself is returned.
1760 4. The block is mature, and we visit it the second time. Now two
1761 subcases are possible:
1762 * The value was computed completely the last time we were here. This
1763 is the case if there is no loop. We can return the proper value.
1764 * The recursion that visited this node and set the flag did not
1765 return yet. We are computing a value in a loop and need to
1766 break the recursion. This case only happens if we visited
1767 the same block with phi_merge before, which inserted a Phi0.
1768 So we return the Phi0.
1771 /* case 4 -- already visited. */
1772 if (get_irn_visited(block) == get_irg_visited(current_ir_graph)) {
1773 /* As phi_merge allocates a Phi0 this value is always defined. Here
1774 is the critical difference of the two algorithms. */
1775 assert(block->attr.block.graph_arr[pos]);
1776 return block->attr.block.graph_arr[pos];
1779 /* visited the first time */
1780 set_irn_visited(block, get_irg_visited(current_ir_graph));
1782 /* Get the local valid value */
1783 res = block->attr.block.graph_arr[pos];
1785 /* case 2 -- If the value is actually computed, return it. */
1786 if (res) { return res; };
1788 if (block->attr.block.matured) { /* case 3 */
1790 /* The Phi has the same amount of ins as the corresponding block. */
1791 int ins = intern_get_irn_arity(block);
1793 NEW_ARR_A (ir_node *, nin, ins);
1795 /* Phi merge collects the predecessors and then creates a node. */
1796 res = phi_merge (block, pos, mode, nin, ins);
1798 } else { /* case 1 */
1799 /* The block is not mature, we don't know how many in's are needed. A Phi
1800 with zero predecessors is created. Such a Phi node is called Phi0
1801 node. The Phi0 is then added to the list of Phi0 nodes in this block
1802 to be matured by mature_block later.
1803 The Phi0 has to remember the pos of it's internal value. If the real
1804 Phi is computed, pos is used to update the array with the local
1806 res = new_rd_Phi0 (current_ir_graph, block, mode);
1807 res->attr.phi0_pos = pos;
1808 res->link = block->link;
1812 /* If we get here, the frontend missed a use-before-definition error */
1815 printf("Error: no value set. Use of undefined variable. Initializing to zero.\n");
1816 assert (mode->code >= irm_F && mode->code <= irm_P);
1817 res = new_rd_Const (NULL, current_ir_graph, block, mode,
1818 get_mode_null(mode));
1821 /* The local valid value is available now. */
1822 block->attr.block.graph_arr[pos] = res;
1827 #endif /* USE_FAST_PHI_CONSTRUCTION */
1829 /* ************************************************************************** */
1831 /** Finalize a Block node, when all control flows are known. */
1832 /** Acceptable parameters are only Block nodes. */
1834 mature_block (ir_node *block)
1843 assert (get_irn_opcode(block) == iro_Block);
1844 /* @@@ should be commented in
1845 assert (!get_Block_matured(block) && "Block already matured"); */
1847 if (!get_Block_matured(block)) {
1848 ins = ARR_LEN (block->in)-1;
1849 /* Fix block parameters */
1850 block->attr.block.backedge = new_backedge_arr(current_ir_graph->obst, ins);
1852 /* An array for building the Phi nodes. */
1853 NEW_ARR_A (ir_node *, nin, ins);
1855 /* Traverse a chain of Phi nodes attached to this block and mature
1857 for (n = block->link; n; n=next) {
1858 inc_irg_visited(current_ir_graph);
1860 exchange (n, phi_merge (block, n->attr.phi0_pos, n->mode, nin, ins));
1863 block->attr.block.matured = 1;
1865 /* Now, as the block is a finished firm node, we can optimize it.
1866 Since other nodes have been allocated since the block was created
1867 we can not free the node on the obstack. Therefore we have to call
1869 Unfortunately the optimization does not change a lot, as all allocated
1870 nodes refer to the unoptimized node.
1871 We can call _2, as global cse has no effect on blocks. */
1872 block = optimize_in_place_2(block);
1873 irn_vrfy_irg(block, current_ir_graph);
1878 new_d_Phi (dbg_info* db, int arity, ir_node **in, ir_mode *mode)
1880 return new_rd_Phi (db, current_ir_graph, current_ir_graph->current_block,
1885 new_d_Const (dbg_info* db, ir_mode *mode, tarval *con)
1887 return new_rd_Const (db, current_ir_graph, current_ir_graph->start_block,
1892 new_d_Const_type (dbg_info* db, ir_mode *mode, tarval *con, type *tp)
1894 return new_rd_Const_type (db, current_ir_graph, current_ir_graph->start_block,
1900 new_d_Id (dbg_info* db, ir_node *val, ir_mode *mode)
1902 return new_rd_Id (db, current_ir_graph, current_ir_graph->current_block,
1907 new_d_Proj (dbg_info* db, ir_node *arg, ir_mode *mode, long proj)
1909 return new_rd_Proj (db, current_ir_graph, current_ir_graph->current_block,
1914 new_d_defaultProj (dbg_info* db, ir_node *arg, long max_proj)
1917 assert(arg->op == op_Cond);
1918 arg->attr.c.kind = fragmentary;
1919 arg->attr.c.default_proj = max_proj;
1920 res = new_Proj (arg, mode_X, max_proj);
1925 new_d_Conv (dbg_info* db, ir_node *op, ir_mode *mode)
1927 return new_rd_Conv (db, current_ir_graph, current_ir_graph->current_block,
1932 new_d_Cast (dbg_info* db, ir_node *op, type *to_tp)
1934 return new_rd_Cast (db, current_ir_graph, current_ir_graph->current_block, op, to_tp);
1938 new_d_Tuple (dbg_info* db, int arity, ir_node **in)
1940 return new_rd_Tuple (db, current_ir_graph, current_ir_graph->current_block,
1945 new_d_Add (dbg_info* db, ir_node *op1, ir_node *op2, ir_mode *mode)
1947 return new_rd_Add (db, current_ir_graph, current_ir_graph->current_block,
1952 new_d_Sub (dbg_info* db, ir_node *op1, ir_node *op2, ir_mode *mode)
1954 return new_rd_Sub (db, current_ir_graph, current_ir_graph->current_block,
1960 new_d_Minus (dbg_info* db, ir_node *op, ir_mode *mode)
1962 return new_rd_Minus (db, current_ir_graph, current_ir_graph->current_block,
1967 new_d_Mul (dbg_info* db, ir_node *op1, ir_node *op2, ir_mode *mode)
1969 return new_rd_Mul (db, current_ir_graph, current_ir_graph->current_block,
1974 new_d_Quot (dbg_info* db, ir_node *memop, ir_node *op1, ir_node *op2)
1977 res = new_rd_Quot (db, current_ir_graph, current_ir_graph->current_block,
1979 #if PRECISE_EXC_CONTEXT
1980 if ((current_ir_graph->phase_state == phase_building) &&
1981 (intern_get_irn_op(res) == op_Quot)) /* Could be optimized away. */
1982 res->attr.frag_arr = new_frag_arr(res);
1989 new_d_DivMod (dbg_info* db, ir_node *memop, ir_node *op1, ir_node *op2)
1992 res = new_rd_DivMod (db, current_ir_graph, current_ir_graph->current_block,
1994 #if PRECISE_EXC_CONTEXT
1995 if ((current_ir_graph->phase_state == phase_building) &&
1996 (intern_get_irn_op(res) == op_DivMod)) /* Could be optimized away. */
1997 res->attr.frag_arr = new_frag_arr(res);
2004 new_d_Div (dbg_info* db, ir_node *memop, ir_node *op1, ir_node *op2)
2007 res = new_rd_Div (db, current_ir_graph, current_ir_graph->current_block,
2009 #if PRECISE_EXC_CONTEXT
2010 if ((current_ir_graph->phase_state == phase_building) &&
2011 (intern_get_irn_op(res) == op_Div)) /* Could be optimized away. */
2012 res->attr.frag_arr = new_frag_arr(res);
2019 new_d_Mod (dbg_info* db, ir_node *memop, ir_node *op1, ir_node *op2)
2022 res = new_rd_Mod (db, current_ir_graph, current_ir_graph->current_block,
2024 #if PRECISE_EXC_CONTEXT
2025 if ((current_ir_graph->phase_state == phase_building) &&
2026 (intern_get_irn_op(res) == op_Mod)) /* Could be optimized away. */
2027 res->attr.frag_arr = new_frag_arr(res);
2034 new_d_And (dbg_info* db, ir_node *op1, ir_node *op2, ir_mode *mode)
2036 return new_rd_And (db, current_ir_graph, current_ir_graph->current_block,
2041 new_d_Or (dbg_info* db, ir_node *op1, ir_node *op2, ir_mode *mode)
2043 return new_rd_Or (db, current_ir_graph, current_ir_graph->current_block,
2048 new_d_Eor (dbg_info* db, ir_node *op1, ir_node *op2, ir_mode *mode)
2050 return new_rd_Eor (db, current_ir_graph, current_ir_graph->current_block,
2055 new_d_Not (dbg_info* db, ir_node *op, ir_mode *mode)
2057 return new_rd_Not (db, current_ir_graph, current_ir_graph->current_block,
2062 new_d_Shl (dbg_info* db, ir_node *op, ir_node *k, ir_mode *mode)
2064 return new_rd_Shl (db, current_ir_graph, current_ir_graph->current_block,
2069 new_d_Shr (dbg_info* db, ir_node *op, ir_node *k, ir_mode *mode)
2071 return new_rd_Shr (db, current_ir_graph, current_ir_graph->current_block,
2076 new_d_Shrs (dbg_info* db, ir_node *op, ir_node *k, ir_mode *mode)
2078 return new_rd_Shrs (db, current_ir_graph, current_ir_graph->current_block,
2083 new_d_Rot (dbg_info* db, ir_node *op, ir_node *k, ir_mode *mode)
2085 return new_rd_Rot (db, current_ir_graph, current_ir_graph->current_block,
2090 new_d_Abs (dbg_info* db, ir_node *op, ir_mode *mode)
2092 return new_rd_Abs (db, current_ir_graph, current_ir_graph->current_block,
2097 new_d_Cmp (dbg_info* db, ir_node *op1, ir_node *op2)
2099 return new_rd_Cmp (db, current_ir_graph, current_ir_graph->current_block,
2104 new_d_Jmp (dbg_info* db)
2106 return new_rd_Jmp (db, current_ir_graph, current_ir_graph->current_block);
2110 new_d_Cond (dbg_info* db, ir_node *c)
2112 return new_rd_Cond (db, current_ir_graph, current_ir_graph->current_block, c);
2116 new_d_Call (dbg_info* db, ir_node *store, ir_node *callee, int arity, ir_node **in,
2120 res = new_rd_Call (db, current_ir_graph, current_ir_graph->current_block,
2121 store, callee, arity, in, tp);
2122 #if PRECISE_EXC_CONTEXT
2123 if ((current_ir_graph->phase_state == phase_building) &&
2124 (intern_get_irn_op(res) == op_Call)) /* Could be optimized away. */
2125 res->attr.call.frag_arr = new_frag_arr(res);
2132 new_d_Return (dbg_info* db, ir_node* store, int arity, ir_node **in)
2134 return new_rd_Return (db, current_ir_graph, current_ir_graph->current_block,
2139 new_d_Raise (dbg_info* db, ir_node *store, ir_node *obj)
2141 return new_rd_Raise (db, current_ir_graph, current_ir_graph->current_block,
2146 new_d_Load (dbg_info* db, ir_node *store, ir_node *addr)
2149 res = new_rd_Load (db, current_ir_graph, current_ir_graph->current_block,
2151 #if PRECISE_EXC_CONTEXT
2152 if ((current_ir_graph->phase_state == phase_building) &&
2153 (intern_get_irn_op(res) == op_Load)) /* Could be optimized away. */
2154 res->attr.frag_arr = new_frag_arr(res);
2161 new_d_Store (dbg_info* db, ir_node *store, ir_node *addr, ir_node *val)
2164 res = new_rd_Store (db, current_ir_graph, current_ir_graph->current_block,
2166 #if PRECISE_EXC_CONTEXT
2167 if ((current_ir_graph->phase_state == phase_building) &&
2168 (intern_get_irn_op(res) == op_Store)) /* Could be optimized away. */
2169 res->attr.frag_arr = new_frag_arr(res);
2176 new_d_Alloc (dbg_info* db, ir_node *store, ir_node *size, type *alloc_type,
2180 res = new_rd_Alloc (db, current_ir_graph, current_ir_graph->current_block,
2181 store, size, alloc_type, where);
2182 #if PRECISE_EXC_CONTEXT
2183 if ((current_ir_graph->phase_state == phase_building) &&
2184 (intern_get_irn_op(res) == op_Alloc)) /* Could be optimized away. */
2185 res->attr.a.frag_arr = new_frag_arr(res);
2192 new_d_Free (dbg_info* db, ir_node *store, ir_node *ptr, ir_node *size, type *free_type)
2194 return new_rd_Free (db, current_ir_graph, current_ir_graph->current_block,
2195 store, ptr, size, free_type);
2199 new_d_simpleSel (dbg_info* db, ir_node *store, ir_node *objptr, entity *ent)
2200 /* GL: objptr was called frame before. Frame was a bad choice for the name
2201 as the operand could as well be a pointer to a dynamic object. */
2203 return new_rd_Sel (db, current_ir_graph, current_ir_graph->current_block,
2204 store, objptr, 0, NULL, ent);
2208 new_d_Sel (dbg_info* db, ir_node *store, ir_node *objptr, int n_index, ir_node **index, entity *sel)
2210 return new_rd_Sel (db, current_ir_graph, current_ir_graph->current_block,
2211 store, objptr, n_index, index, sel);
2215 new_d_InstOf (dbg_info *db, ir_node *store, ir_node *objptr, type *ent)
2217 return (new_rd_InstOf (db, current_ir_graph, current_ir_graph->current_block,
2218 store, objptr, ent));
2222 new_d_SymConst (dbg_info* db, type_or_id_p value, symconst_kind kind)
2224 return new_rd_SymConst (db, current_ir_graph, current_ir_graph->start_block,
2229 new_d_Sync (dbg_info* db, int arity, ir_node** in)
2231 return new_rd_Sync (db, current_ir_graph, current_ir_graph->current_block,
2239 return current_ir_graph->bad;
2243 new_d_Confirm (dbg_info *db, ir_node *val, ir_node *bound, pn_Cmp cmp)
2245 return new_rd_Confirm (db, current_ir_graph, current_ir_graph->current_block,
2250 new_d_Unknown (ir_mode *m)
2252 return new_rd_Unknown(current_ir_graph, m);
2256 new_d_CallBegin (dbg_info *db, ir_node *call)
2259 res = new_rd_CallBegin (db, current_ir_graph, current_ir_graph->current_block, call);
2264 new_d_EndReg (dbg_info *db)
2267 res = new_rd_EndReg(db, current_ir_graph, current_ir_graph->current_block);
2272 new_d_EndExcept (dbg_info *db)
2275 res = new_rd_EndExcept(db, current_ir_graph, current_ir_graph->current_block);
2280 new_d_Break (dbg_info *db)
2282 return new_rd_Break (db, current_ir_graph, current_ir_graph->current_block);
2286 new_d_Filter (dbg_info *db, ir_node *arg, ir_mode *mode, long proj)
2288 return new_rd_Filter (db, current_ir_graph, current_ir_graph->current_block,
2293 new_d_FuncCall (dbg_info* db, ir_node *callee, int arity, ir_node **in,
2297 res = new_rd_FuncCall (db, current_ir_graph, current_ir_graph->current_block,
2298 callee, arity, in, tp);
2303 /* ********************************************************************* */
2304 /* Comfortable interface with automatic Phi node construction. */
2305 /* (Uses also constructors of ?? interface, except new_Block. */
2306 /* ********************************************************************* */
2308 /* * Block construction **/
2309 /* immature Block without predecessors */
2310 ir_node *new_d_immBlock (dbg_info* db) {
2313 assert(get_irg_phase_state (current_ir_graph) == phase_building);
2314 /* creates a new dynamic in-array as length of in is -1 */
2315 res = new_ir_node (db, current_ir_graph, NULL, op_Block, mode_BB, -1, NULL);
2316 current_ir_graph->current_block = res;
2317 res->attr.block.matured = 0;
2318 /* res->attr.block.exc = exc_normal; */
2319 /* res->attr.block.handler_entry = 0; */
2320 res->attr.block.irg = current_ir_graph;
2321 res->attr.block.backedge = NULL;
2322 res->attr.block.in_cg = NULL;
2323 res->attr.block.cg_backedge = NULL;
2324 set_Block_block_visited(res, 0);
2326 /* Create and initialize array for Phi-node construction. */
2327 res->attr.block.graph_arr = NEW_ARR_D (ir_node *, current_ir_graph->obst,
2328 current_ir_graph->n_loc);
2329 memset(res->attr.block.graph_arr, 0, sizeof(ir_node *)*current_ir_graph->n_loc);
2331 /* Immature block may not be optimized! */
2332 irn_vrfy_irg (res, current_ir_graph);
2339 return new_d_immBlock(NULL);
2342 /* add an adge to a jmp/control flow node */
2344 add_in_edge (ir_node *block, ir_node *jmp)
2346 if (block->attr.block.matured) {
2347 assert(0 && "Error: Block already matured!\n");
2350 assert (jmp != NULL);
2351 ARR_APP1 (ir_node *, block->in, jmp);
2355 /* changing the current block */
2357 switch_block (ir_node *target)
2359 current_ir_graph->current_block = target;
2362 /* ************************ */
2363 /* parameter administration */
2365 /* get a value from the parameter array from the current block by its index */
2367 get_d_value (dbg_info* db, int pos, ir_mode *mode)
2369 assert(get_irg_phase_state (current_ir_graph) == phase_building);
2370 inc_irg_visited(current_ir_graph);
2372 return get_r_value_internal (current_ir_graph->current_block, pos + 1, mode);
2374 /* get a value from the parameter array from the current block by its index */
2376 get_value (int pos, ir_mode *mode)
2378 return get_d_value(NULL, pos, mode);
2381 /* set a value at position pos in the parameter array from the current block */
2383 set_value (int pos, ir_node *value)
2385 assert(get_irg_phase_state (current_ir_graph) == phase_building);
2386 assert(pos+1 < current_ir_graph->n_loc);
2387 current_ir_graph->current_block->attr.block.graph_arr[pos + 1] = value;
2390 /* get the current store */
2394 assert(get_irg_phase_state (current_ir_graph) == phase_building);
2395 /* GL: one could call get_value instead */
2396 inc_irg_visited(current_ir_graph);
2397 return get_r_value_internal (current_ir_graph->current_block, 0, mode_M);
2400 /* set the current store */
2402 set_store (ir_node *store)
2404 /* GL: one could call set_value instead */
2405 assert(get_irg_phase_state (current_ir_graph) == phase_building);
2406 current_ir_graph->current_block->attr.block.graph_arr[0] = store;
2410 keep_alive (ir_node *ka)
2412 add_End_keepalive(current_ir_graph->end, ka);
2415 /** Useful access routines **/
2416 /* Returns the current block of the current graph. To set the current
2417 block use switch_block(). */
2418 ir_node *get_cur_block() {
2419 return get_irg_current_block(current_ir_graph);
2422 /* Returns the frame type of the current graph */
2423 type *get_cur_frame_type() {
2424 return get_irg_frame_type(current_ir_graph);
2428 /* ********************************************************************* */
2431 /* call once for each run of the library */
2433 init_cons (default_initialize_local_variable_func_t *func)
2435 default_initialize_local_variable = func;
2438 /* call for each graph */
2440 finalize_cons (ir_graph *irg) {
2441 irg->phase_state = phase_high;
2445 ir_node *new_Block(int arity, ir_node **in) {
2446 return new_d_Block(NULL, arity, in);
2448 ir_node *new_Start (void) {
2449 return new_d_Start(NULL);
2451 ir_node *new_End (void) {
2452 return new_d_End(NULL);
2454 ir_node *new_Jmp (void) {
2455 return new_d_Jmp(NULL);
2457 ir_node *new_Cond (ir_node *c) {
2458 return new_d_Cond(NULL, c);
2460 ir_node *new_Return (ir_node *store, int arity, ir_node *in[]) {
2461 return new_d_Return(NULL, store, arity, in);
2463 ir_node *new_Raise (ir_node *store, ir_node *obj) {
2464 return new_d_Raise(NULL, store, obj);
2466 ir_node *new_Const (ir_mode *mode, tarval *con) {
2467 return new_d_Const(NULL, mode, con);
2469 ir_node *new_SymConst (type_or_id_p value, symconst_kind kind) {
2470 return new_d_SymConst(NULL, value, kind);
2472 ir_node *new_simpleSel(ir_node *store, ir_node *objptr, entity *ent) {
2473 return new_d_simpleSel(NULL, store, objptr, ent);
2475 ir_node *new_Sel (ir_node *store, ir_node *objptr, int arity, ir_node **in,
2477 return new_d_Sel(NULL, store, objptr, arity, in, ent);
2479 ir_node *new_InstOf (ir_node *store, ir_node *objptr, type *ent) {
2480 return new_d_InstOf (NULL, store, objptr, ent);
2482 ir_node *new_Call (ir_node *store, ir_node *callee, int arity, ir_node **in,
2484 return new_d_Call(NULL, store, callee, arity, in, tp);
2486 ir_node *new_Add (ir_node *op1, ir_node *op2, ir_mode *mode) {
2487 return new_d_Add(NULL, op1, op2, mode);
2489 ir_node *new_Sub (ir_node *op1, ir_node *op2, ir_mode *mode) {
2490 return new_d_Sub(NULL, op1, op2, mode);
2492 ir_node *new_Minus (ir_node *op, ir_mode *mode) {
2493 return new_d_Minus(NULL, op, mode);
2495 ir_node *new_Mul (ir_node *op1, ir_node *op2, ir_mode *mode) {
2496 return new_d_Mul(NULL, op1, op2, mode);
2498 ir_node *new_Quot (ir_node *memop, ir_node *op1, ir_node *op2) {
2499 return new_d_Quot(NULL, memop, op1, op2);
2501 ir_node *new_DivMod (ir_node *memop, ir_node *op1, ir_node *op2) {
2502 return new_d_DivMod(NULL, memop, op1, op2);
2504 ir_node *new_Div (ir_node *memop, ir_node *op1, ir_node *op2) {
2505 return new_d_Div(NULL, memop, op1, op2);
2507 ir_node *new_Mod (ir_node *memop, ir_node *op1, ir_node *op2) {
2508 return new_d_Mod(NULL, memop, op1, op2);
2510 ir_node *new_Abs (ir_node *op, ir_mode *mode) {
2511 return new_d_Abs(NULL, op, mode);
2513 ir_node *new_And (ir_node *op1, ir_node *op2, ir_mode *mode) {
2514 return new_d_And(NULL, op1, op2, mode);
2516 ir_node *new_Or (ir_node *op1, ir_node *op2, ir_mode *mode) {
2517 return new_d_Or(NULL, op1, op2, mode);
2519 ir_node *new_Eor (ir_node *op1, ir_node *op2, ir_mode *mode) {
2520 return new_d_Eor(NULL, op1, op2, mode);
2522 ir_node *new_Not (ir_node *op, ir_mode *mode) {
2523 return new_d_Not(NULL, op, mode);
2525 ir_node *new_Shl (ir_node *op, ir_node *k, ir_mode *mode) {
2526 return new_d_Shl(NULL, op, k, mode);
2528 ir_node *new_Shr (ir_node *op, ir_node *k, ir_mode *mode) {
2529 return new_d_Shr(NULL, op, k, mode);
2531 ir_node *new_Shrs (ir_node *op, ir_node *k, ir_mode *mode) {
2532 return new_d_Shrs(NULL, op, k, mode);
2534 #define new_Rotate new_Rot
2535 ir_node *new_Rot (ir_node *op, ir_node *k, ir_mode *mode) {
2536 return new_d_Rot(NULL, op, k, mode);
2538 ir_node *new_Cmp (ir_node *op1, ir_node *op2) {
2539 return new_d_Cmp(NULL, op1, op2);
2541 ir_node *new_Conv (ir_node *op, ir_mode *mode) {
2542 return new_d_Conv(NULL, op, mode);
2544 ir_node *new_Cast (ir_node *op, type *to_tp) {
2545 return new_d_Cast(NULL, op, to_tp);
2547 ir_node *new_Phi (int arity, ir_node **in, ir_mode *mode) {
2548 return new_d_Phi(NULL, arity, in, mode);
2550 ir_node *new_Load (ir_node *store, ir_node *addr) {
2551 return new_d_Load(NULL, store, addr);
2553 ir_node *new_Store (ir_node *store, ir_node *addr, ir_node *val) {
2554 return new_d_Store(NULL, store, addr, val);
2556 ir_node *new_Alloc (ir_node *store, ir_node *size, type *alloc_type,
2557 where_alloc where) {
2558 return new_d_Alloc(NULL, store, size, alloc_type, where);
2560 ir_node *new_Free (ir_node *store, ir_node *ptr, ir_node *size,
2562 return new_d_Free(NULL, store, ptr, size, free_type);
2564 ir_node *new_Sync (int arity, ir_node **in) {
2565 return new_d_Sync(NULL, arity, in);
2567 ir_node *new_Proj (ir_node *arg, ir_mode *mode, long proj) {
2568 return new_d_Proj(NULL, arg, mode, proj);
2570 ir_node *new_defaultProj (ir_node *arg, long max_proj) {
2571 return new_d_defaultProj(NULL, arg, max_proj);
2573 ir_node *new_Tuple (int arity, ir_node **in) {
2574 return new_d_Tuple(NULL, arity, in);
2576 ir_node *new_Id (ir_node *val, ir_mode *mode) {
2577 return new_d_Id(NULL, val, mode);
2579 ir_node *new_Bad (void) {
2582 ir_node *new_Confirm (ir_node *val, ir_node *bound, pn_Cmp cmp) {
2583 return new_d_Confirm (NULL, val, bound, cmp);
2585 ir_node *new_Unknown(ir_mode *m) {
2586 return new_d_Unknown(m);
2588 ir_node *new_CallBegin (ir_node *callee) {
2589 return new_d_CallBegin(NULL, callee);
2591 ir_node *new_EndReg (void) {
2592 return new_d_EndReg(NULL);
2594 ir_node *new_EndExcept (void) {
2595 return new_d_EndExcept(NULL);
2597 ir_node *new_Break (void) {
2598 return new_d_Break(NULL);
2600 ir_node *new_Filter (ir_node *arg, ir_mode *mode, long proj) {
2601 return new_d_Filter(NULL, arg, mode, proj);
2603 ir_node *new_FuncCall (ir_node *callee, int arity, ir_node **in, type *tp) {
2604 return new_d_FuncCall(NULL, callee, arity, in, tp);