3 * File name: ir/lower/lower_dw.c
4 * Purpose: Lower Double word operations, ie Mode L -> I.
8 * Copyright: (c) 1998-2006 Universität Karlsruhe
9 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
31 #include "irgraph_t.h"
36 #include "dbginfo_t.h"
37 #include "iropt_dbg.h"
51 /** A map from mode to a primitive type. */
52 static pmap *prim_types;
54 /** A map from (op, imode, omode) to Intrinsic functions entities. */
55 static set *intrinsic_fkt;
57 /** A map from (imode, omode) to conv function types. */
58 static set *conv_types;
60 /** A map from a method type to its lowered type. */
61 static pmap *lowered_type;
63 /** The types for the binop and unop intrinsics. */
64 static ir_type *binop_tp_u, *binop_tp_s, *unop_tp_u, *unop_tp_s, *shiftop_tp_u, *shiftop_tp_s, *tp_s, *tp_u;
66 /** the debug handle */
67 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
70 * An entry in the (op, imode, omode) -> entity map.
72 typedef struct _op_mode_entry {
73 const ir_op *op; /**< the op */
74 const ir_mode *imode; /**< the input mode */
75 const ir_mode *omode; /**< the output mode */
76 entity *ent; /**< the associated entity of this (op, imode, omode) triple */
80 * An entry in the (imode, omode) -> tp map.
82 typedef struct _conv_tp_entry {
83 const ir_mode *imode; /**< the input mode */
84 const ir_mode *omode; /**< the output mode */
85 ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
89 * Every double word node will be replaced,
90 * we need some store to hold the replacement:
92 typedef struct _node_entry_t {
93 ir_node *low_word; /**< the low word */
94 ir_node *high_word; /**< the high word */
98 MUST_BE_LOWERED = 1, /**< graph must be lowered */
99 CF_CHANGED = 2, /**< control flow was changed */
103 * The lower environment.
105 typedef struct _lower_env_t {
106 node_entry_t **entries; /**< entries per node */
107 struct obstack obst; /**< an obstack holding the temporary data */
108 tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
109 tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
110 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
111 pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
112 const lwrdw_param_t *params; /**< transformation parameter */
113 unsigned flags; /**< some flags */
114 int n_entries; /**< number of entries */
118 * Get a primitive mode for a mode.
120 static ir_type *get_primitive_type(ir_mode *mode) {
121 pmap_entry *entry = pmap_find(prim_types, mode);
128 snprintf(buf, sizeof(buf), "_prim_%s", get_mode_name(mode));
129 tp = new_type_primitive(new_id_from_str(buf), mode);
131 pmap_insert(prim_types, mode, tp);
133 } /* get_primitive_type */
136 * Create a method type for a Conv emulation from imode to omode.
138 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env) {
139 conv_tp_entry_t key, *entry;
146 entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
148 int n_param = 1, n_res = 1;
151 if (imode == env->params->high_signed || imode == env->params->high_unsigned)
153 if (omode == env->params->high_signed || omode == env->params->high_unsigned)
156 /* create a new one */
157 snprintf(buf, sizeof(buf), "LConv%s%s", get_mode_name(imode), get_mode_name(omode));
158 mtd = new_type_method(new_id_from_str(buf), n_param, n_res);
160 /* set param types and result types */
162 if (imode == env->params->high_signed) {
163 set_method_param_type(mtd, n_param++, tp_s);
164 set_method_param_type(mtd, n_param++, tp_s);
165 } else if (imode == env->params->high_unsigned) {
166 set_method_param_type(mtd, n_param++, tp_u);
167 set_method_param_type(mtd, n_param++, tp_u);
169 ir_type *tp = get_primitive_type(imode);
170 set_method_param_type(mtd, n_param++, tp);
174 if (omode == env->params->high_signed) {
175 set_method_res_type(mtd, n_res++, tp_s);
176 set_method_res_type(mtd, n_res++, tp_s);
177 } else if (omode == env->params->high_unsigned) {
178 set_method_res_type(mtd, n_res++, tp_u);
179 set_method_res_type(mtd, n_res++, tp_u);
181 ir_type *tp = get_primitive_type(omode);
182 set_method_res_type(mtd, n_res++, tp);
189 } /* get_conv_type */
192 * Add an additional control flow input to a block.
193 * Patch all Phi nodes. The new Phi inputs are copied from
194 * old input number nr.
196 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
198 int i, arity = get_irn_arity(block);
203 NEW_ARR_A(ir_node *, in, arity + 1);
204 for (i = 0; i < arity; ++i)
205 in[i] = get_irn_n(block, i);
208 set_irn_in(block, i + 1, in);
210 for (phi = get_irn_link(block); phi; phi = get_irn_link(phi)) {
211 for (i = 0; i < arity; ++i)
212 in[i] = get_irn_n(phi, i);
214 set_irn_in(phi, i + 1, in);
216 } /* add_block_cf_input_nr */
219 * Add an additional control flow input to a block.
220 * Patch all Phi nodes. The new Phi inputs are copied from
221 * old input from cf tmpl.
223 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
225 int i, arity = get_irn_arity(block);
228 for (i = 0; i < arity; ++i) {
229 if (get_irn_n(block, i) == tmpl) {
235 add_block_cf_input_nr(block, nr, cf);
236 } /* add_block_cf_input */
239 * Return the "operational" mode of a Firm node.
241 static ir_mode *get_irn_op_mode(ir_node *node)
243 switch (get_irn_opcode(node)) {
245 return get_Load_mode(node);
247 return get_irn_mode(get_Store_value(node));
249 return get_irn_mode(get_DivMod_left(node));
251 return get_irn_mode(get_Div_left(node));
253 return get_irn_mode(get_Mod_left(node));
255 return get_irn_mode(get_Cmp_left(node));
257 return get_irn_mode(node);
259 } /* get_irn_op_mode */
262 * Walker, prepare the node links.
264 static void prepare_links(ir_node *node, void *env)
266 lower_env_t *lenv = env;
267 ir_mode *mode = get_irn_op_mode(node);
271 if (mode == lenv->params->high_signed ||
272 mode == lenv->params->high_unsigned) {
273 /* ok, found a node that will be lowered */
274 link = obstack_alloc(&lenv->obst, sizeof(*link));
276 memset(link, 0, sizeof(*link));
278 lenv->entries[get_irn_idx(node)] = link;
279 lenv->flags |= MUST_BE_LOWERED;
280 } else if (get_irn_op(node) == op_Conv) {
281 /* Conv nodes have two modes */
282 ir_node *pred = get_Conv_op(node);
283 mode = get_irn_mode(pred);
285 if (mode == lenv->params->high_signed ||
286 mode == lenv->params->high_unsigned) {
287 /* must lower this node either */
288 link = obstack_alloc(&lenv->obst, sizeof(*link));
290 memset(link, 0, sizeof(*link));
292 lenv->entries[get_irn_idx(node)] = link;
293 lenv->flags |= MUST_BE_LOWERED;
299 /* link all Proj nodes to its predecessor:
300 Note that Tuple Proj's and its Projs are linked either. */
301 ir_node *pred = get_Proj_pred(node);
303 set_irn_link(node, get_irn_link(pred));
304 set_irn_link(pred, node);
305 } else if (is_Phi(node)) {
306 /* link all Phi nodes to its block */
307 ir_node *block = get_nodes_block(node);
309 set_irn_link(node, get_irn_link(block));
310 set_irn_link(block, node);
311 } else if (is_Block(node)) {
312 /* fill the Proj -> Block map */
313 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
314 ir_node *pred = get_Block_cfgpred(node, i);
317 pmap_insert(lenv->proj_2_block, pred, node);
320 } /* prepare_links */
323 * Translate a Constant: create two.
325 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env) {
326 tarval *tv, *tv_l, *tv_h;
328 dbg_info *dbg = get_irn_dbg_info(node);
329 ir_node *block = get_nodes_block(node);
331 ir_graph *irg = current_ir_graph;
333 tv = get_Const_tarval(node);
335 tv_l = tarval_convert_to(tv, mode);
336 low = new_rd_Const(dbg, irg, block, mode, tv_l);
338 tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
339 high = new_rd_Const(dbg, irg, block, mode, tv_h);
341 idx = get_irn_idx(node);
342 assert(idx < env->n_entries);
343 env->entries[idx]->low_word = low;
344 env->entries[idx]->high_word = high;
348 * Translate a Load: create two.
350 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
351 ir_graph *irg = current_ir_graph;
352 ir_node *adr = get_Load_ptr(node);
353 ir_node *mem = get_Load_mem(node);
354 ir_node *low, *high, *proj;
356 ir_node *block = get_nodes_block(node);
359 if (env->params->little_endian) {
361 high = new_r_Add(irg, block, adr,
362 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
365 low = new_r_Add(irg, block, adr,
366 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
371 /* create two loads */
372 dbg = get_irn_dbg_info(node);
373 low = new_rd_Load(dbg, irg, block, mem, low, mode);
374 proj = new_r_Proj(irg, block, low, mode_M, pn_Load_M);
375 high = new_rd_Load(dbg, irg, block, proj, high, mode);
377 set_Load_volatility(low, get_Load_volatility(node));
378 set_Load_volatility(high, get_Load_volatility(node));
380 idx = get_irn_idx(node);
381 assert(idx < env->n_entries);
382 env->entries[idx]->low_word = low;
383 env->entries[idx]->high_word = high;
385 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
386 idx = get_irn_idx(proj);
388 switch (get_Proj_proj(proj)) {
389 case pn_Load_M: /* Memory result. */
390 /* put it to the second one */
391 set_Proj_pred(proj, high);
393 case pn_Load_X_except: /* Execution result if exception occurred. */
394 /* put it to the first one */
395 set_Proj_pred(proj, low);
397 case pn_Load_res: /* Result of load operation. */
398 assert(idx < env->n_entries);
399 env->entries[idx]->low_word = new_r_Proj(irg, block, low, mode, pn_Load_res);
400 env->entries[idx]->high_word = new_r_Proj(irg, block, high, mode, pn_Load_res);
403 assert(0 && "unexpected Proj number");
405 /* mark this proj: we have handled it already, otherwise we might fall into
407 mark_irn_visited(proj);
412 * Translate a Store: create two.
414 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
416 ir_node *block, *adr, *mem;
417 ir_node *low, *high, *irn, *proj;
422 irn = get_Store_value(node);
423 entry = env->entries[get_irn_idx(irn)];
426 if (! entry->low_word) {
427 /* not ready yet, wait */
428 pdeq_putr(env->waitq, node);
432 irg = current_ir_graph;
433 adr = get_Store_ptr(node);
434 mem = get_Store_mem(node);
435 block = get_nodes_block(node);
437 if (env->params->little_endian) {
439 high = new_r_Add(irg, block, adr,
440 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
443 low = new_r_Add(irg, block, adr,
444 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
449 /* create two Stores */
450 dbg = get_irn_dbg_info(node);
451 low = new_rd_Store(dbg, irg, block, mem, low, entry->low_word);
452 proj = new_r_Proj(irg, block, low, mode_M, pn_Store_M);
453 high = new_rd_Store(dbg, irg, block, proj, high, entry->high_word);
455 set_Store_volatility(low, get_Store_volatility(node));
456 set_Store_volatility(high, get_Store_volatility(node));
458 idx = get_irn_idx(node);
459 assert(idx < env->n_entries);
460 env->entries[idx]->low_word = low;
461 env->entries[idx]->high_word = high;
463 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
464 idx = get_irn_idx(proj);
466 switch (get_Proj_proj(proj)) {
467 case pn_Store_M: /* Memory result. */
468 /* put it to the second one */
469 set_Proj_pred(proj, high);
471 case pn_Store_X_except: /* Execution result if exception occurred. */
472 /* put it to the first one */
473 set_Proj_pred(proj, low);
476 assert(0 && "unexpected Proj number");
478 /* mark this proj: we have handled it already, otherwise we might fall into
480 mark_irn_visited(proj);
485 * Return a node containing the address of the intrinsic emulation function.
487 * @param method the method type of the emulation function
488 * @param op the emulated ir_op
489 * @param imode the input mode of the emulated opcode
490 * @param omode the output mode of the emulated opcode
491 * @param block where the new mode is created
492 * @param env the lower environment
494 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
495 ir_mode *imode, ir_mode *omode,
496 ir_node *block, lower_env_t *env) {
499 op_mode_entry_t key, *entry;
506 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
507 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
509 /* create a new one */
510 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
512 assert(ent && "Intrinsic creator must return an entity");
518 return new_r_SymConst(current_ir_graph, block, sym, symconst_addr_ent);
519 } /* get_intrinsic_address */
524 * Create an intrinsic Call.
526 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env) {
527 ir_node *block, *irn, *call, *proj;
536 irn = get_Div_left(node);
537 entry = env->entries[get_irn_idx(irn)];
540 if (! entry->low_word) {
541 /* not ready yet, wait */
542 pdeq_putr(env->waitq, node);
546 in[0] = entry->low_word;
547 in[1] = entry->high_word;
549 irn = get_Div_right(node);
550 entry = env->entries[get_irn_idx(irn)];
553 if (! entry->low_word) {
554 /* not ready yet, wait */
555 pdeq_putr(env->waitq, node);
559 in[2] = entry->low_word;
560 in[3] = entry->high_word;
562 dbg = get_irn_dbg_info(node);
563 block = get_nodes_block(node);
564 irg = current_ir_graph;
566 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
567 opmode = get_irn_op_mode(node);
568 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
569 call = new_rd_Call(dbg, irg, block, get_Div_mem(node),
571 set_irn_pinned(call, get_irn_pinned(node));
572 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
574 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
575 switch (get_Proj_proj(proj)) {
576 case pn_Div_M: /* Memory result. */
577 /* reroute to the call */
578 set_Proj_pred(proj, call);
579 set_Proj_proj(proj, pn_Call_M_except);
581 case pn_Div_X_except: /* Execution result if exception occurred. */
582 /* reroute to the call */
583 set_Proj_pred(proj, call);
584 set_Proj_proj(proj, pn_Call_X_except);
586 case pn_Div_res: /* Result of computation. */
587 idx = get_irn_idx(proj);
588 assert(idx < env->n_entries);
589 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
590 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
593 assert(0 && "unexpected Proj number");
595 /* mark this proj: we have handled it already, otherwise we might fall into
597 mark_irn_visited(proj);
604 * Create an intrinsic Call.
606 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env) {
607 ir_node *block, *proj, *irn, *call;
616 irn = get_Mod_left(node);
617 entry = env->entries[get_irn_idx(irn)];
620 if (! entry->low_word) {
621 /* not ready yet, wait */
622 pdeq_putr(env->waitq, node);
626 in[0] = entry->low_word;
627 in[1] = entry->high_word;
629 irn = get_Mod_right(node);
630 entry = env->entries[get_irn_idx(irn)];
633 if (! entry->low_word) {
634 /* not ready yet, wait */
635 pdeq_putr(env->waitq, node);
639 in[2] = entry->low_word;
640 in[3] = entry->high_word;
642 dbg = get_irn_dbg_info(node);
643 block = get_nodes_block(node);
644 irg = current_ir_graph;
646 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
647 opmode = get_irn_op_mode(node);
648 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
649 call = new_rd_Call(dbg, irg, block, get_Mod_mem(node),
651 set_irn_pinned(call, get_irn_pinned(node));
652 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
654 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
655 switch (get_Proj_proj(proj)) {
656 case pn_Mod_M: /* Memory result. */
657 /* reroute to the call */
658 set_Proj_pred(proj, call);
659 set_Proj_proj(proj, pn_Call_M_except);
661 case pn_Mod_X_except: /* Execution result if exception occurred. */
662 /* reroute to the call */
663 set_Proj_pred(proj, call);
664 set_Proj_proj(proj, pn_Call_X_except);
666 case pn_Mod_res: /* Result of computation. */
667 idx = get_irn_idx(proj);
668 assert(idx < env->n_entries);
669 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
670 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
673 assert(0 && "unexpected Proj number");
675 /* mark this proj: we have handled it already, otherwise we might fall into
677 mark_irn_visited(proj);
682 * Translate a DivMod.
684 * Create two intrinsic Calls.
686 static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env) {
687 ir_node *block, *proj, *irn, *mem, *callDiv, *callMod, *resDiv, *resMod;
697 /* check if both results are needed */
698 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
699 switch (get_Proj_proj(proj)) {
700 case pn_DivMod_res_div: flags |= 1; break;
701 case pn_DivMod_res_mod: flags |= 2; break;
706 irn = get_DivMod_left(node);
707 entry = env->entries[get_irn_idx(irn)];
710 if (! entry->low_word) {
711 /* not ready yet, wait */
712 pdeq_putr(env->waitq, node);
716 in[0] = entry->low_word;
717 in[1] = entry->high_word;
719 irn = get_DivMod_right(node);
720 entry = env->entries[get_irn_idx(irn)];
723 if (! entry->low_word) {
724 /* not ready yet, wait */
725 pdeq_putr(env->waitq, node);
729 in[2] = entry->low_word;
730 in[3] = entry->high_word;
732 dbg = get_irn_dbg_info(node);
733 block = get_nodes_block(node);
734 irg = current_ir_graph;
736 mem = get_DivMod_mem(node);
738 callDiv = callMod = NULL;
739 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
741 opmode = get_irn_op_mode(node);
742 irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, block, env);
743 callDiv = new_rd_Call(dbg, irg, block, mem,
745 set_irn_pinned(callDiv, get_irn_pinned(node));
746 resDiv = new_r_Proj(irg, block, callDiv, mode_T, pn_Call_T_result);
750 mem = new_r_Proj(irg, block, callDiv, mode_M, pn_Call_M);
751 opmode = get_irn_op_mode(node);
752 irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, block, env);
753 callMod = new_rd_Call(dbg, irg, block, mem,
755 set_irn_pinned(callMod, get_irn_pinned(node));
756 resMod = new_r_Proj(irg, block, callMod, mode_T, pn_Call_T_result);
759 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
760 switch (get_Proj_proj(proj)) {
761 case pn_DivMod_M: /* Memory result. */
762 /* reroute to the first call */
763 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
764 set_Proj_proj(proj, pn_Call_M_except);
766 case pn_DivMod_X_except: /* Execution result if exception occurred. */
767 /* reroute to the first call */
768 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
769 set_Proj_proj(proj, pn_Call_X_except);
771 case pn_DivMod_res_div: /* Result of Div. */
772 idx = get_irn_idx(proj);
773 assert(idx < env->n_entries);
774 env->entries[idx]->low_word = new_r_Proj(irg, block, resDiv, mode, 0);
775 env->entries[idx]->high_word = new_r_Proj(irg, block, resDiv, mode, 1);
777 case pn_DivMod_res_mod: /* Result of Mod. */
778 idx = get_irn_idx(proj);
779 env->entries[idx]->low_word = new_r_Proj(irg, block, resMod, mode, 0);
780 env->entries[idx]->high_word = new_r_Proj(irg, block, resMod, mode, 1);
783 assert(0 && "unexpected Proj number");
785 /* mark this proj: we have handled it already, otherwise we might fall into
787 mark_irn_visited(proj);
794 * Create an intrinsic Call.
796 static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env) {
797 ir_node *block, *irn;
805 irn = get_binop_left(node);
806 entry = env->entries[get_irn_idx(irn)];
809 if (! entry->low_word) {
810 /* not ready yet, wait */
811 pdeq_putr(env->waitq, node);
815 in[0] = entry->low_word;
816 in[1] = entry->high_word;
818 irn = get_binop_right(node);
819 entry = env->entries[get_irn_idx(irn)];
822 if (! entry->low_word) {
823 /* not ready yet, wait */
824 pdeq_putr(env->waitq, node);
828 in[2] = entry->low_word;
829 in[3] = entry->high_word;
831 dbg = get_irn_dbg_info(node);
832 block = get_nodes_block(node);
833 irg = current_ir_graph;
835 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
836 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
837 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
839 set_irn_pinned(irn, get_irn_pinned(node));
840 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
842 idx = get_irn_idx(node);
843 assert(idx < env->n_entries);
844 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
845 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
849 * Translate a Shiftop.
851 * Create an intrinsic Call.
853 static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env) {
854 ir_node *block, *irn;
862 irn = get_binop_left(node);
863 entry = env->entries[get_irn_idx(irn)];
866 if (! entry->low_word) {
867 /* not ready yet, wait */
868 pdeq_putr(env->waitq, node);
872 in[0] = entry->low_word;
873 in[1] = entry->high_word;
875 /* The shift count is always mode_Iu in firm, so there is no need for lowering */
876 in[2] = get_binop_right(node);
878 dbg = get_irn_dbg_info(node);
879 block = get_nodes_block(node);
880 irg = current_ir_graph;
882 mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
883 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
884 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
886 set_irn_pinned(irn, get_irn_pinned(node));
887 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
889 idx = get_irn_idx(node);
890 assert(idx < env->n_entries);
891 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
892 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
893 } /* lower_Shiftop */
896 * Translate a Shr and handle special cases.
898 static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env) {
899 ir_node *right = get_Shr_right(node);
900 ir_graph *irg = current_ir_graph;
902 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
903 tarval *tv = get_Const_tarval(right);
905 if (tarval_is_long(tv) &&
906 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
907 ir_node *block = get_nodes_block(node);
908 ir_node *left = get_Shr_left(node);
910 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
911 int idx = get_irn_idx(left);
913 left = env->entries[idx]->high_word;
914 idx = get_irn_idx(node);
917 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
918 env->entries[idx]->low_word = new_r_Shr(irg, block, left, c, mode);
920 env->entries[idx]->low_word = left;
922 env->entries[idx]->high_word = new_r_Const(irg, block, mode, get_mode_null(mode));
927 lower_Shiftop(node, mode, env);
931 * Translate a Shl and handle special cases.
933 static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env) {
934 ir_node *right = get_Shl_right(node);
935 ir_graph *irg = current_ir_graph;
937 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
938 tarval *tv = get_Const_tarval(right);
940 if (tarval_is_long(tv) &&
941 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
942 ir_node *block = get_nodes_block(node);
943 ir_node *left = get_Shl_left(node);
945 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
946 int idx = get_irn_idx(left);
948 left = env->entries[idx]->low_word;
949 idx = get_irn_idx(node);
952 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
953 env->entries[idx]->high_word = new_r_Shl(irg, block, left, c, mode);
955 env->entries[idx]->high_word = left;
957 env->entries[idx]->low_word = new_r_Const(irg, block, mode, get_mode_null(mode));
962 lower_Shiftop(node, mode, env);
966 * Translate a Shrs and handle special cases.
968 static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env) {
969 ir_node *right = get_Shrs_right(node);
970 ir_graph *irg = current_ir_graph;
972 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
973 tarval *tv = get_Const_tarval(right);
975 if (tarval_is_long(tv) &&
976 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
977 ir_node *block = get_nodes_block(node);
978 ir_node *left = get_Shrs_left(node);
979 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
981 int idx = get_irn_idx(left);
983 left = env->entries[idx]->high_word;
984 idx = get_irn_idx(node);
987 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
988 env->entries[idx]->low_word = new_r_Shrs(irg, block, left, c, mode);
990 env->entries[idx]->low_word = left;
992 c = new_r_Const_long(irg, block, mode_Iu, get_mode_size_bits(mode) - 1);
993 env->entries[idx]->high_word = new_r_Shrs(irg, block, left, c, mode);
998 lower_Shiftop(node, mode, env);
1002 * Translate a Rot and handle special cases.
1004 static void lower_Rot(ir_node *node, ir_mode *mode, lower_env_t *env) {
1005 ir_node *right = get_Rot_right(node);
1007 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
1008 tarval *tv = get_Const_tarval(right);
1010 if (tarval_is_long(tv) &&
1011 get_tarval_long(tv) == get_mode_size_bits(mode)) {
1012 ir_node *left = get_Rot_left(node);
1014 int idx = get_irn_idx(left);
1016 l = env->entries[idx]->low_word;
1017 h = env->entries[idx]->high_word;
1018 idx = get_irn_idx(node);
1020 env->entries[idx]->low_word = h;
1021 env->entries[idx]->high_word = l;
1026 lower_Shiftop(node, mode, env);
1030 * Translate an Unop.
1032 * Create an intrinsic Call.
1034 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
1035 ir_node *block, *irn;
1041 node_entry_t *entry;
1043 irn = get_unop_op(node);
1044 entry = env->entries[get_irn_idx(irn)];
1047 if (! entry->low_word) {
1048 /* not ready yet, wait */
1049 pdeq_putr(env->waitq, node);
1053 in[0] = entry->low_word;
1054 in[1] = entry->high_word;
1056 dbg = get_irn_dbg_info(node);
1057 block = get_nodes_block(node);
1058 irg = current_ir_graph;
1060 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
1061 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
1062 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
1064 set_irn_pinned(irn, get_irn_pinned(node));
1065 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
1067 idx = get_irn_idx(node);
1068 assert(idx < env->n_entries);
1069 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
1070 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
1074 * Translate a logical Binop.
1076 * Create two logical Binops.
1078 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
1079 ir_node *(*constr_rd)(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
1080 ir_node *block, *irn;
1081 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
1085 node_entry_t *entry;
1087 irn = get_binop_left(node);
1088 entry = env->entries[get_irn_idx(irn)];
1091 if (! entry->low_word) {
1092 /* not ready yet, wait */
1093 pdeq_putr(env->waitq, node);
1097 lop_l = entry->low_word;
1098 lop_h = entry->high_word;
1100 irn = get_binop_right(node);
1101 entry = env->entries[get_irn_idx(irn)];
1104 if (! entry->low_word) {
1105 /* not ready yet, wait */
1106 pdeq_putr(env->waitq, node);
1110 rop_l = entry->low_word;
1111 rop_h = entry->high_word;
1113 dbg = get_irn_dbg_info(node);
1114 block = get_nodes_block(node);
1116 idx = get_irn_idx(node);
1117 assert(idx < env->n_entries);
1118 irg = current_ir_graph;
1119 env->entries[idx]->low_word = constr_rd(dbg, irg, block, lop_l, rop_l, mode);
1120 env->entries[idx]->high_word = constr_rd(dbg, irg, block, lop_h, rop_h, mode);
1121 } /* lower_Binop_logical */
1123 /** create a logical operation tranformation */
1124 #define lower_logical(op) \
1125 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
1126 lower_Binop_logical(node, mode, env, new_rd_##op); \
1136 * Create two logical Nots.
1138 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env) {
1139 ir_node *block, *irn;
1140 ir_node *op_l, *op_h;
1144 node_entry_t *entry;
1146 irn = get_Not_op(node);
1147 entry = env->entries[get_irn_idx(irn)];
1150 if (! entry->low_word) {
1151 /* not ready yet, wait */
1152 pdeq_putr(env->waitq, node);
1156 op_l = entry->low_word;
1157 op_h = entry->high_word;
1159 dbg = get_irn_dbg_info(node);
1160 block = get_nodes_block(node);
1161 irg = current_ir_graph;
1163 idx = get_irn_idx(node);
1164 assert(idx < env->n_entries);
1165 env->entries[idx]->low_word = new_rd_Not(dbg, current_ir_graph, block, op_l, mode);
1166 env->entries[idx]->high_word = new_rd_Not(dbg, current_ir_graph, block, op_h, mode);
1172 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env) {
1173 ir_node *cmp, *left, *right, *block;
1174 ir_node *sel = get_Cond_selector(node);
1175 ir_mode *m = get_irn_mode(sel);
1179 node_entry_t *lentry, *rentry;
1180 ir_node *proj, *projT = NULL, *projF = NULL;
1181 ir_node *new_bl, *cmpH, *cmpL, *irn;
1182 ir_node *projHF, *projHT;
1188 cmp = get_Proj_pred(sel);
1189 left = get_Cmp_left(cmp);
1190 idx = get_irn_idx(left);
1191 lentry = env->entries[idx];
1198 right = get_Cmp_right(cmp);
1199 idx = get_irn_idx(right);
1200 rentry = env->entries[idx];
1203 if (! lentry->low_word || !rentry->low_word) {
1205 pdeq_putr(env->waitq, node);
1209 /* all right, build the code */
1210 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1211 long proj_nr = get_Proj_proj(proj);
1213 if (proj_nr == pn_Cond_true) {
1214 assert(projT == NULL && "more than one Proj(true)");
1217 assert(proj_nr == pn_Cond_false);
1218 assert(projF == NULL && "more than one Proj(false)");
1221 mark_irn_visited(proj);
1223 assert(projT && projF);
1225 /* create a new high compare */
1226 block = get_nodes_block(cmp);
1227 dbg = get_irn_dbg_info(cmp);
1228 irg = current_ir_graph;
1230 cmpH = new_rd_Cmp(dbg, irg, block, lentry->high_word, rentry->high_word);
1232 pnc = get_Proj_proj(sel);
1233 if (pnc == pn_Cmp_Eq) {
1234 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1235 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1238 dst_blk = entry->value;
1240 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Eq);
1241 dbg = get_irn_dbg_info(node);
1242 irn = new_rd_Cond(dbg, irg, block, irn);
1244 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1245 mark_irn_visited(projHF);
1246 exchange(projF, projHF);
1248 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1249 mark_irn_visited(projHT);
1251 new_bl = new_r_Block(irg, 1, &projHT);
1253 dbg = get_irn_dbg_info(cmp);
1254 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1255 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Eq);
1256 dbg = get_irn_dbg_info(node);
1257 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1259 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1260 mark_irn_visited(proj);
1261 add_block_cf_input(dst_blk, projHF, proj);
1263 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1264 mark_irn_visited(proj);
1265 exchange(projT, proj);
1266 } else if (pnc == pn_Cmp_Lg) {
1267 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1268 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1271 dst_blk = entry->value;
1273 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Lg);
1274 dbg = get_irn_dbg_info(node);
1275 irn = new_rd_Cond(dbg, irg, block, irn);
1277 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1278 mark_irn_visited(projHT);
1279 exchange(projT, projHT);
1281 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1282 mark_irn_visited(projHF);
1284 new_bl = new_r_Block(irg, 1, &projHF);
1286 dbg = get_irn_dbg_info(cmp);
1287 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1288 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Lg);
1289 dbg = get_irn_dbg_info(node);
1290 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1292 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1293 mark_irn_visited(proj);
1294 add_block_cf_input(dst_blk, projHT, proj);
1296 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1297 mark_irn_visited(proj);
1298 exchange(projF, proj);
1300 /* a rel b <==> a_h rel b_h || (a_h == b_h && a_l rel b_l) */
1301 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1304 entry = pmap_find(env->proj_2_block, projT);
1306 dstT = entry->value;
1308 entry = pmap_find(env->proj_2_block, projF);
1310 dstF = entry->value;
1312 irn = new_r_Proj(irg, block, cmpH, mode_b, pnc);
1313 dbg = get_irn_dbg_info(node);
1314 irn = new_rd_Cond(dbg, irg, block, irn);
1316 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1317 mark_irn_visited(projHT);
1318 exchange(projT, projHT);
1321 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1322 mark_irn_visited(projHF);
1324 newbl_eq = new_r_Block(irg, 1, &projHF);
1326 irn = new_r_Proj(irg, newbl_eq, cmpH, mode_b, pn_Cmp_Eq);
1327 irn = new_rd_Cond(dbg, irg, newbl_eq, irn);
1329 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_false);
1330 mark_irn_visited(proj);
1331 exchange(projF, proj);
1334 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_true);
1335 mark_irn_visited(proj);
1337 newbl_l = new_r_Block(irg, 1, &proj);
1339 dbg = get_irn_dbg_info(cmp);
1340 cmpL = new_rd_Cmp(dbg, irg, newbl_l, lentry->low_word, rentry->low_word);
1341 irn = new_r_Proj(irg, newbl_l, cmpL, mode_b, pnc);
1342 dbg = get_irn_dbg_info(node);
1343 irn = new_rd_Cond(dbg, irg, newbl_l, irn);
1345 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_true);
1346 mark_irn_visited(proj);
1347 add_block_cf_input(dstT, projT, proj);
1349 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_false);
1350 mark_irn_visited(proj);
1351 add_block_cf_input(dstF, projF, proj);
1354 /* we have changed the control flow */
1355 env->flags |= CF_CHANGED;
1357 idx = get_irn_idx(sel);
1359 if (env->entries[idx]) {
1361 Bad, a jump-table with double-word index.
1362 This should not happen, but if it does we handle
1363 it like a Conv were between (in other words, ignore
1367 if (! env->entries[idx]->low_word) {
1368 /* not ready yet, wait */
1369 pdeq_putr(env->waitq, node);
1372 set_Cond_selector(node, env->entries[idx]->low_word);
1378 * Translate a Conv to higher_signed
1380 static void lower_Conv_to_Ls(ir_node *node, lower_env_t *env) {
1381 ir_node *op = get_Conv_op(node);
1382 ir_mode *imode = get_irn_mode(op);
1383 ir_mode *dst_mode = env->params->low_signed;
1384 int idx = get_irn_idx(node);
1385 ir_graph *irg = current_ir_graph;
1386 ir_node *block = get_nodes_block(node);
1387 dbg_info *dbg = get_irn_dbg_info(node);
1389 assert(idx < env->n_entries);
1391 if (mode_is_int(imode) || mode_is_reference(imode)) {
1392 if (imode == env->params->high_unsigned) {
1393 /* a Conv from Lu to Ls */
1394 int op_idx = get_irn_idx(op);
1396 if (! env->entries[op_idx]->low_word) {
1397 /* not ready yet, wait */
1398 pdeq_putr(env->waitq, node);
1401 env->entries[idx]->low_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->low_word, dst_mode);
1402 env->entries[idx]->high_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->high_word, dst_mode);
1404 /* simple case: create a high word */
1405 if (imode != dst_mode)
1406 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1408 env->entries[idx]->low_word = op;
1409 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op,
1410 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode) - 1), dst_mode);
1413 ir_node *irn, *call;
1414 ir_mode *omode = env->params->high_signed;
1415 ir_type *mtp = get_conv_type(imode, omode, env);
1417 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1418 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1419 set_irn_pinned(call, get_irn_pinned(node));
1420 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1422 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1423 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1425 } /* lower_Conv_to_Ls */
1428 * Translate a Conv to higher_unsigned
1430 static void lower_Conv_to_Lu(ir_node *node, lower_env_t *env) {
1431 ir_node *op = get_Conv_op(node);
1432 ir_mode *imode = get_irn_mode(op);
1433 ir_mode *dst_mode = env->params->low_unsigned;
1434 int idx = get_irn_idx(node);
1435 ir_graph *irg = current_ir_graph;
1436 ir_node *block = get_nodes_block(node);
1437 dbg_info *dbg = get_irn_dbg_info(node);
1439 assert(idx < env->n_entries);
1441 if (mode_is_int(imode) || mode_is_reference(imode)) {
1442 if (imode == env->params->high_signed) {
1443 /* a Conv from Ls to Lu */
1444 int op_idx = get_irn_idx(op);
1446 if (! env->entries[op_idx]->low_word) {
1447 /* not ready yet, wait */
1448 pdeq_putr(env->waitq, node);
1451 env->entries[idx]->low_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->low_word, dst_mode);
1452 env->entries[idx]->high_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->high_word, dst_mode);
1454 /* simple case: create a high word */
1455 if (imode != dst_mode)
1456 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1458 env->entries[idx]->low_word = op;
1459 env->entries[idx]->high_word = new_Const(dst_mode, get_mode_null(dst_mode));
1462 ir_node *irn, *call;
1463 ir_mode *omode = env->params->high_unsigned;
1464 ir_type *mtp = get_conv_type(imode, omode, env);
1466 /* do an intrinsic call */
1467 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1468 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1469 set_irn_pinned(call, get_irn_pinned(node));
1470 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1472 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1473 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1475 } /* lower_Conv_to_Lu */
1478 * Translate a Conv from higher_signed
1480 static void lower_Conv_from_Ls(ir_node *node, lower_env_t *env) {
1481 ir_node *op = get_Conv_op(node);
1482 ir_mode *omode = get_irn_mode(node);
1483 ir_node *block = get_nodes_block(node);
1484 dbg_info *dbg = get_irn_dbg_info(node);
1485 int idx = get_irn_idx(op);
1486 ir_graph *irg = current_ir_graph;
1488 assert(idx < env->n_entries);
1490 if (mode_is_int(omode) || mode_is_reference(omode)) {
1491 op = env->entries[idx]->low_word;
1493 /* simple case: create a high word */
1494 if (omode != env->params->low_signed)
1495 op = new_rd_Conv(dbg, irg, block, op, omode);
1497 set_Conv_op(node, op);
1499 ir_node *irn, *call, *in[2];
1500 ir_mode *imode = env->params->high_signed;
1501 ir_type *mtp = get_conv_type(imode, omode, env);
1503 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1504 in[0] = env->entries[idx]->low_word;
1505 in[1] = env->entries[idx]->high_word;
1507 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1508 set_irn_pinned(call, get_irn_pinned(node));
1509 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1511 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1513 } /* lower_Conv_from_Ls */
1516 * Translate a Conv from higher_unsigned
1518 static void lower_Conv_from_Lu(ir_node *node, lower_env_t *env) {
1519 ir_node *op = get_Conv_op(node);
1520 ir_mode *omode = get_irn_mode(node);
1521 ir_node *block = get_nodes_block(node);
1522 dbg_info *dbg = get_irn_dbg_info(node);
1523 int idx = get_irn_idx(op);
1524 ir_graph *irg = current_ir_graph;
1526 assert(idx < env->n_entries);
1528 if (mode_is_int(omode) || mode_is_reference(omode)) {
1529 op = env->entries[idx]->low_word;
1531 /* simple case: create a high word */
1532 if (omode != env->params->low_unsigned)
1533 op = new_rd_Conv(dbg, irg, block, op, omode);
1535 set_Conv_op(node, op);
1537 ir_node *irn, *call, *in[2];
1538 ir_mode *imode = env->params->high_unsigned;
1539 ir_type *mtp = get_conv_type(imode, omode, env);
1541 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1542 in[0] = env->entries[idx]->low_word;
1543 in[1] = env->entries[idx]->high_word;
1545 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1546 set_irn_pinned(call, get_irn_pinned(node));
1547 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1549 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1551 } /* lower_Conv_from_Lu */
1556 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env) {
1557 mode = get_irn_mode(node);
1559 if (mode == env->params->high_signed) {
1560 lower_Conv_to_Ls(node, env);
1561 } else if (mode == env->params->high_unsigned) {
1562 lower_Conv_to_Lu(node, env);
1564 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1566 if (mode == env->params->high_signed) {
1567 lower_Conv_from_Ls(node, env);
1569 assert(mode == env->params->high_unsigned);
1570 lower_Conv_from_Lu(node, env);
1576 * Lower the method type.
1578 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env) {
1583 if (is_lowered_type(mtp))
1586 entry = pmap_find(lowered_type, mtp);
1588 int i, n, r, n_param, n_res;
1590 /* count new number of params */
1591 n_param = n = get_method_n_params(mtp);
1592 for (i = n_param - 1; i >= 0; --i) {
1593 ir_type *tp = get_method_param_type(mtp, i);
1595 if (is_Primitive_type(tp)) {
1596 ir_mode *mode = get_type_mode(tp);
1598 if (mode == env->params->high_signed ||
1599 mode == env->params->high_unsigned)
1604 /* count new number of results */
1605 n_res = r = get_method_n_ress(mtp);
1606 for (i = n_res - 1; i >= 0; --i) {
1607 ir_type *tp = get_method_res_type(mtp, i);
1609 if (is_Primitive_type(tp)) {
1610 ir_mode *mode = get_type_mode(tp);
1612 if (mode == env->params->high_signed ||
1613 mode == env->params->high_unsigned)
1618 id = mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
1619 res = new_type_method(id, n_param, n_res);
1621 /* set param types and result types */
1622 for (i = n_param = 0; i < n; ++i) {
1623 ir_type *tp = get_method_param_type(mtp, i);
1625 if (is_Primitive_type(tp)) {
1626 ir_mode *mode = get_type_mode(tp);
1628 if (mode == env->params->high_signed) {
1629 set_method_param_type(res, n_param++, tp_s);
1630 set_method_param_type(res, n_param++, tp_s);
1631 } else if (mode == env->params->high_unsigned) {
1632 set_method_param_type(res, n_param++, tp_u);
1633 set_method_param_type(res, n_param++, tp_u);
1635 set_method_param_type(res, n_param++, tp);
1638 set_method_param_type(res, n_param++, tp);
1641 for (i = n_res = 0; i < r; ++i) {
1642 ir_type *tp = get_method_res_type(mtp, i);
1644 if (is_Primitive_type(tp)) {
1645 ir_mode *mode = get_type_mode(tp);
1647 if (mode == env->params->high_signed) {
1648 set_method_res_type(res, n_res++, tp_s);
1649 set_method_res_type(res, n_res++, tp_s);
1650 } else if (mode == env->params->high_unsigned) {
1651 set_method_res_type(res, n_res++, tp_u);
1652 set_method_res_type(res, n_res++, tp_u);
1654 set_method_res_type(res, n_res++, tp);
1657 set_method_res_type(res, n_res++, tp);
1660 set_lowered_type(mtp, res);
1661 pmap_insert(lowered_type, mtp, res);
1669 * Translate a Return.
1671 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env) {
1672 ir_graph *irg = current_ir_graph;
1673 entity *ent = get_irg_entity(irg);
1674 ir_type *mtp = get_entity_type(ent);
1679 /* check if this return must be lowered */
1680 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1681 ir_node *pred = get_Return_res(node, i);
1682 ir_mode *mode = get_irn_op_mode(pred);
1684 if (mode == env->params->high_signed ||
1685 mode == env->params->high_unsigned) {
1686 idx = get_irn_idx(pred);
1687 if (! env->entries[idx]->low_word) {
1688 /* not ready yet, wait */
1689 pdeq_putr(env->waitq, node);
1698 ent = get_irg_entity(irg);
1699 mtp = get_entity_type(ent);
1701 mtp = lower_mtp(mtp, env);
1702 set_entity_type(ent, mtp);
1704 /* create a new in array */
1705 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1706 in[0] = get_Return_mem(node);
1708 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1709 ir_node *pred = get_Return_res(node, i);
1711 idx = get_irn_idx(pred);
1712 assert(idx < env->n_entries);
1714 if (env->entries[idx]) {
1715 in[++j] = env->entries[idx]->low_word;
1716 in[++j] = env->entries[idx]->high_word;
1722 set_irn_in(node, j+1, in);
1723 } /* lower_Return */
1726 * Translate the parameters.
1728 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env) {
1729 ir_graph *irg = current_ir_graph;
1730 entity *ent = get_irg_entity(irg);
1731 ir_type *tp = get_entity_type(ent);
1734 int i, j, n_params, rem;
1735 ir_node *proj, *args;
1737 if (is_lowered_type(tp)) {
1738 mtp = get_associated_type(tp);
1742 assert(! is_lowered_type(mtp));
1744 n_params = get_method_n_params(mtp);
1748 NEW_ARR_A(long, new_projs, n_params);
1750 /* first check if we have parameters that must be fixed */
1751 for (i = j = 0; i < n_params; ++i, ++j) {
1752 ir_type *tp = get_method_param_type(mtp, i);
1755 if (is_Primitive_type(tp)) {
1756 ir_mode *mode = get_type_mode(tp);
1758 if (mode == env->params->high_signed ||
1759 mode == env->params->high_unsigned)
1766 mtp = lower_mtp(mtp, env);
1767 set_entity_type(ent, mtp);
1769 /* switch off optimization for new Proj nodes or they might be CSE'ed
1770 with not patched one's */
1771 rem = get_optimize();
1774 /* ok, fix all Proj's and create new ones */
1775 args = get_irg_args(irg);
1776 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1777 ir_node *pred = get_Proj_pred(proj);
1783 /* do not visit this node again */
1784 mark_irn_visited(proj);
1789 proj_nr = get_Proj_proj(proj);
1790 set_Proj_proj(proj, new_projs[proj_nr]);
1792 idx = get_irn_idx(proj);
1793 if (env->entries[idx]) {
1794 mode = get_irn_mode(proj);
1796 if (mode == env->params->high_signed) {
1797 mode = env->params->low_signed;
1799 mode = env->params->low_unsigned;
1802 dbg = get_irn_dbg_info(proj);
1803 env->entries[idx]->low_word =
1804 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr]);
1805 env->entries[idx]->high_word =
1806 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr] + 1);
1815 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env) {
1816 ir_graph *irg = current_ir_graph;
1817 ir_type *tp = get_Call_type(node);
1819 ir_node **in, *proj, *results;
1820 int n_params, n_res, need_lower = 0;
1822 long *res_numbers = NULL;
1824 if (is_lowered_type(tp)) {
1825 call_tp = get_associated_type(tp);
1830 assert(! is_lowered_type(call_tp));
1832 n_params = get_method_n_params(call_tp);
1833 for (i = 0; i < n_params; ++i) {
1834 ir_type *tp = get_method_param_type(call_tp, i);
1836 if (is_Primitive_type(tp)) {
1837 ir_mode *mode = get_type_mode(tp);
1839 if (mode == env->params->high_signed ||
1840 mode == env->params->high_unsigned) {
1846 n_res = get_method_n_ress(call_tp);
1848 NEW_ARR_A(long, res_numbers, n_res);
1850 for (i = j = 0; i < n_res; ++i, ++j) {
1851 ir_type *tp = get_method_res_type(call_tp, i);
1854 if (is_Primitive_type(tp)) {
1855 ir_mode *mode = get_type_mode(tp);
1857 if (mode == env->params->high_signed ||
1858 mode == env->params->high_unsigned) {
1869 /* let's lower it */
1870 call_tp = lower_mtp(call_tp, env);
1871 set_Call_type(node, call_tp);
1873 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1875 in[0] = get_Call_mem(node);
1876 in[1] = get_Call_ptr(node);
1878 for (j = 2, i = 0; i < n_params; ++i) {
1879 ir_node *pred = get_Call_param(node, i);
1880 int idx = get_irn_idx(pred);
1882 if (env->entries[idx]) {
1883 if (! env->entries[idx]->low_word) {
1884 /* not ready yet, wait */
1885 pdeq_putr(env->waitq, node);
1888 in[j++] = env->entries[idx]->low_word;
1889 in[j++] = env->entries[idx]->high_word;
1895 set_irn_in(node, j, in);
1897 /* fix the results */
1899 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1900 long proj_nr = get_Proj_proj(proj);
1902 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1903 /* found the result proj */
1909 if (results) { /* there are results */
1910 int rem = get_optimize();
1912 /* switch off optimization for new Proj nodes or they might be CSE'ed
1913 with not patched one's */
1915 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1916 if (get_Proj_pred(proj) == results) {
1917 long proj_nr = get_Proj_proj(proj);
1920 /* found a result */
1921 set_Proj_proj(proj, res_numbers[proj_nr]);
1922 idx = get_irn_idx(proj);
1923 if (env->entries[idx]) {
1924 ir_mode *mode = get_irn_mode(proj);
1927 if (mode == env->params->high_signed) {
1928 mode = env->params->low_signed;
1930 mode = env->params->low_unsigned;
1933 dbg = get_irn_dbg_info(proj);
1934 env->entries[idx]->low_word =
1935 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr]);
1936 env->entries[idx]->high_word =
1937 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr] + 1);
1939 mark_irn_visited(proj);
1947 * Translate an Unknown into two.
1949 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env) {
1950 int idx = get_irn_idx(node);
1951 ir_graph *irg = current_ir_graph;
1953 env->entries[idx]->low_word =
1954 env->entries[idx]->high_word = new_r_Unknown(irg, mode);
1955 } /* lower_Unknown */
1960 * First step: just create two templates
1962 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env) {
1963 ir_graph *irg = current_ir_graph;
1964 ir_node *block, *unk;
1965 ir_node **inl, **inh;
1967 int idx, i, arity = get_Phi_n_preds(phi);
1970 idx = get_irn_idx(phi);
1971 if (env->entries[idx]->low_word) {
1972 /* Phi nodes already build, check for inputs */
1973 ir_node *phil = env->entries[idx]->low_word;
1974 ir_node *phih = env->entries[idx]->high_word;
1976 for (i = 0; i < arity; ++i) {
1977 ir_node *pred = get_Phi_pred(phi, i);
1978 int idx = get_irn_idx(pred);
1980 if (env->entries[idx]->low_word) {
1981 set_Phi_pred(phil, i, env->entries[idx]->low_word);
1982 set_Phi_pred(phih, i, env->entries[idx]->high_word);
1984 /* still not ready */
1985 pdeq_putr(env->waitq, phi);
1991 /* first create a new in array */
1992 NEW_ARR_A(ir_node *, inl, arity);
1993 NEW_ARR_A(ir_node *, inh, arity);
1994 unk = new_r_Unknown(irg, mode);
1996 for (i = 0; i < arity; ++i) {
1997 ir_node *pred = get_Phi_pred(phi, i);
1998 int idx = get_irn_idx(pred);
2000 if (env->entries[idx]->low_word) {
2001 inl[i] = env->entries[idx]->low_word;
2002 inh[i] = env->entries[idx]->high_word;
2010 dbg = get_irn_dbg_info(phi);
2011 block = get_nodes_block(phi);
2013 idx = get_irn_idx(phi);
2014 assert(idx < env->n_entries);
2015 env->entries[idx]->low_word = new_rd_Phi(dbg, irg, block, arity, inl, mode);
2016 env->entries[idx]->high_word = new_rd_Phi(dbg, irg, block, arity, inh, mode);
2019 /* not yet finished */
2020 pdeq_putr(env->waitq, phi);
2025 * check for opcodes that must always be lowered.
2027 static int always_lower(opcode code) {
2037 } /* always_lower */
2039 /** The type of a lower function. */
2040 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
2045 static void lower_ops(ir_node *node, void *env)
2047 lower_env_t *lenv = env;
2048 node_entry_t *entry;
2049 int idx = get_irn_idx(node);
2051 entry = lenv->entries[idx];
2052 if (entry || always_lower(get_irn_opcode(node))) {
2053 ir_op *op = get_irn_op(node);
2054 lower_func func = (lower_func)op->ops.generic;
2057 ir_mode *mode = get_irn_op_mode(node);
2059 if (mode == lenv->params->high_signed)
2060 mode = lenv->params->low_signed;
2062 mode = lenv->params->low_unsigned;
2064 DB((dbg, LEVEL_1, " %+F\n", node));
2065 func(node, mode, lenv);
2070 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
2073 * Compare two op_mode_entry_t's.
2075 static int cmp_op_mode(const void *elt, const void *key, size_t size) {
2076 const op_mode_entry_t *e1 = elt;
2077 const op_mode_entry_t *e2 = key;
2079 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
2083 * Compare two conv_tp_entry_t's.
2085 static int cmp_conv_tp(const void *elt, const void *key, size_t size) {
2086 const conv_tp_entry_t *e1 = elt;
2087 const conv_tp_entry_t *e2 = key;
2089 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
2090 } /* static int cmp_conv_tp */
2095 void lower_dw_ops(const lwrdw_param_t *param)
2104 if (! param->enable)
2107 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
2109 assert(2 * get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->high_signed));
2110 assert(2 * get_mode_size_bits(param->low_unsigned) == get_mode_size_bits(param->high_unsigned));
2111 assert(get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->low_unsigned));
2113 /* create the necessary maps */
2115 prim_types = pmap_create();
2116 if (! intrinsic_fkt)
2117 intrinsic_fkt = new_set(cmp_op_mode, iro_MaxOpcode);
2119 conv_types = new_set(cmp_conv_tp, 16);
2121 lowered_type = pmap_create();
2123 /* create a primitive unsigned and signed type */
2125 tp_u = get_primitive_type(param->low_unsigned);
2127 tp_s = get_primitive_type(param->low_signed);
2129 /* create method types for the created binop calls */
2131 binop_tp_u = new_type_method(IDENT("binop_u_intrinsic"), 4, 2);
2132 set_method_param_type(binop_tp_u, 0, tp_u);
2133 set_method_param_type(binop_tp_u, 1, tp_u);
2134 set_method_param_type(binop_tp_u, 2, tp_u);
2135 set_method_param_type(binop_tp_u, 3, tp_u);
2136 set_method_res_type(binop_tp_u, 0, tp_u);
2137 set_method_res_type(binop_tp_u, 1, tp_u);
2140 binop_tp_s = new_type_method(IDENT("binop_s_intrinsic"), 4, 2);
2141 set_method_param_type(binop_tp_s, 0, tp_s);
2142 set_method_param_type(binop_tp_s, 1, tp_s);
2143 set_method_param_type(binop_tp_s, 2, tp_s);
2144 set_method_param_type(binop_tp_s, 3, tp_s);
2145 set_method_res_type(binop_tp_s, 0, tp_s);
2146 set_method_res_type(binop_tp_s, 1, tp_s);
2148 if (! shiftop_tp_u) {
2149 shiftop_tp_u = new_type_method(IDENT("shiftop_u_intrinsic"), 3, 2);
2150 set_method_param_type(shiftop_tp_u, 0, tp_u);
2151 set_method_param_type(shiftop_tp_u, 1, tp_u);
2152 set_method_param_type(shiftop_tp_u, 2, tp_u);
2153 set_method_res_type(shiftop_tp_u, 0, tp_u);
2154 set_method_res_type(shiftop_tp_u, 1, tp_u);
2156 if (! shiftop_tp_s) {
2157 shiftop_tp_s = new_type_method(IDENT("shiftop_s_intrinsic"), 3, 2);
2158 set_method_param_type(shiftop_tp_s, 0, tp_s);
2159 set_method_param_type(shiftop_tp_s, 1, tp_s);
2160 /* beware: shift count is always mode_Iu */
2161 set_method_param_type(shiftop_tp_s, 2, tp_u);
2162 set_method_res_type(shiftop_tp_s, 0, tp_s);
2163 set_method_res_type(shiftop_tp_s, 1, tp_s);
2166 unop_tp_u = new_type_method(IDENT("unop_u_intrinsic"), 2, 2);
2167 set_method_param_type(unop_tp_u, 0, tp_u);
2168 set_method_param_type(unop_tp_u, 1, tp_u);
2169 set_method_res_type(unop_tp_u, 0, tp_u);
2170 set_method_res_type(unop_tp_u, 1, tp_u);
2173 unop_tp_s = new_type_method(IDENT("unop_s_intrinsic"), 2, 2);
2174 set_method_param_type(unop_tp_s, 0, tp_s);
2175 set_method_param_type(unop_tp_s, 1, tp_s);
2176 set_method_res_type(unop_tp_s, 0, tp_s);
2177 set_method_res_type(unop_tp_s, 1, tp_s);
2180 lenv.tv_mode_bytes = new_tarval_from_long(get_mode_size_bytes(param->low_unsigned), mode_Iu);
2181 lenv.tv_mode_bits = new_tarval_from_long(get_mode_size_bits(param->low_unsigned), mode_Iu);
2182 lenv.waitq = new_pdeq();
2183 lenv.params = param;
2185 /* first clear the generic function pointer for all ops */
2186 clear_irp_opcodes_generic_func();
2188 #define LOWER2(op, fkt) op_##op->ops.generic = (op_func)fkt
2189 #define LOWER(op) LOWER2(op, lower_##op)
2190 #define LOWER_BIN(op) LOWER2(op, lower_Binop)
2191 #define LOWER_UN(op) LOWER2(op, lower_Unop)
2193 /* the table of all operations that must be lowered follows */
2228 /* transform all graphs */
2229 rem = current_ir_graph;
2230 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2231 ir_graph *irg = get_irp_irg(i);
2234 obstack_init(&lenv.obst);
2236 n_idx = get_irg_last_idx(irg);
2237 lenv.n_entries = n_idx;
2238 lenv.entries = xmalloc(n_idx * sizeof(lenv.entries[0]));
2239 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2241 /* first step: link all nodes and allocate data */
2243 lenv.proj_2_block = pmap_create();
2244 irg_walk_graph(irg, firm_clear_link, prepare_links, &lenv);
2246 if (lenv.flags & MUST_BE_LOWERED) {
2247 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2249 /* must do some work */
2250 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2252 /* last step: all waiting nodes */
2253 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2254 current_ir_graph = irg;
2255 while (! pdeq_empty(lenv.waitq)) {
2256 ir_node *node = pdeq_getl(lenv.waitq);
2258 lower_ops(node, &lenv);
2261 /* outs are invalid, we changed the graph */
2262 set_irg_outs_inconsistent(irg);
2264 if (lenv.flags & CF_CHANGED) {
2265 /* control flow changed, dominance info is invalid */
2266 set_irg_doms_inconsistent(irg);
2267 set_irg_extblk_inconsistent(irg);
2268 set_irg_loopinfo_inconsistent(irg);
2271 dump_ir_block_graph(irg, "-dw");
2273 pmap_destroy(lenv.proj_2_block);
2275 obstack_free(&lenv.obst, NULL);
2277 del_pdeq(lenv.waitq);
2278 current_ir_graph = rem;
2279 } /* lower_dw_ops */
2281 /* Default implementation. */
2282 entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2283 const ir_mode *imode, const ir_mode *omode,
2290 if (imode == omode) {
2291 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2293 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2294 get_mode_name(imode), get_mode_name(omode));
2296 id = new_id_from_str(buf);
2298 ent = new_entity(get_glob_type(), id, method);
2299 set_entity_ld_ident(ent, get_entity_ident(ent));
2300 set_entity_visibility(ent, visibility_external_allocated);
2302 } /* def_create_intrinsic_fkt */