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 but don't need a link */
288 lenv->flags |= MUST_BE_LOWERED;
294 /* link all Proj nodes to its predecessor:
295 Note that Tuple Proj's and its Projs are linked either. */
296 ir_node *pred = get_Proj_pred(node);
298 set_irn_link(node, get_irn_link(pred));
299 set_irn_link(pred, node);
300 } else if (is_Phi(node)) {
301 /* link all Phi nodes to its block */
302 ir_node *block = get_nodes_block(node);
304 set_irn_link(node, get_irn_link(block));
305 set_irn_link(block, node);
306 } else if (is_Block(node)) {
307 /* fill the Proj -> Block map */
308 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
309 ir_node *pred = get_Block_cfgpred(node, i);
312 pmap_insert(lenv->proj_2_block, pred, node);
315 } /* prepare_links */
318 * Translate a Constant: create two.
320 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env) {
321 tarval *tv, *tv_l, *tv_h;
323 dbg_info *dbg = get_irn_dbg_info(node);
324 ir_node *block = get_nodes_block(node);
326 ir_graph *irg = current_ir_graph;
328 tv = get_Const_tarval(node);
330 tv_l = tarval_convert_to(tv, mode);
331 low = new_rd_Const(dbg, irg, block, mode, tv_l);
333 tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
334 high = new_rd_Const(dbg, irg, block, mode, tv_h);
336 idx = get_irn_idx(node);
337 assert(idx < env->n_entries);
338 env->entries[idx]->low_word = low;
339 env->entries[idx]->high_word = high;
343 * Translate a Load: create two.
345 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
346 ir_graph *irg = current_ir_graph;
347 ir_node *adr = get_Load_ptr(node);
348 ir_node *mem = get_Load_mem(node);
349 ir_node *low, *high, *proj;
351 ir_node *block = get_nodes_block(node);
354 if (env->params->little_endian) {
356 high = new_r_Add(irg, block, adr,
357 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
360 low = new_r_Add(irg, block, adr,
361 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
366 /* create two loads */
367 dbg = get_irn_dbg_info(node);
368 low = new_rd_Load(dbg, irg, block, mem, low, mode);
369 proj = new_r_Proj(irg, block, low, mode_M, pn_Load_M);
370 high = new_rd_Load(dbg, irg, block, proj, high, mode);
372 set_Load_volatility(low, get_Load_volatility(node));
373 set_Load_volatility(high, get_Load_volatility(node));
375 idx = get_irn_idx(node);
376 assert(idx < env->n_entries);
377 env->entries[idx]->low_word = low;
378 env->entries[idx]->high_word = high;
380 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
381 idx = get_irn_idx(proj);
383 switch (get_Proj_proj(proj)) {
384 case pn_Load_M: /* Memory result. */
385 /* put it to the second one */
386 set_Proj_pred(proj, high);
388 case pn_Load_X_except: /* Execution result if exception occurred. */
389 /* put it to the first one */
390 set_Proj_pred(proj, low);
392 case pn_Load_res: /* Result of load operation. */
393 assert(idx < env->n_entries);
394 env->entries[idx]->low_word = new_r_Proj(irg, block, low, mode, pn_Load_res);
395 env->entries[idx]->high_word = new_r_Proj(irg, block, high, mode, pn_Load_res);
398 assert(0 && "unexpected Proj number");
400 /* mark this proj: we have handled it already, otherwise we might fall into
402 mark_irn_visited(proj);
407 * Translate a Store: create two.
409 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
411 ir_node *block, *adr, *mem;
412 ir_node *low, *high, *irn, *proj;
417 irn = get_Store_value(node);
418 entry = env->entries[get_irn_idx(irn)];
421 if (! entry->low_word) {
422 /* not ready yet, wait */
423 pdeq_putr(env->waitq, node);
427 irg = current_ir_graph;
428 adr = get_Store_ptr(node);
429 mem = get_Store_mem(node);
430 block = get_nodes_block(node);
432 if (env->params->little_endian) {
434 high = new_r_Add(irg, block, adr,
435 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
438 low = new_r_Add(irg, block, adr,
439 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
444 /* create two Stores */
445 dbg = get_irn_dbg_info(node);
446 low = new_rd_Store(dbg, irg, block, mem, low, entry->low_word);
447 proj = new_r_Proj(irg, block, low, mode_M, pn_Store_M);
448 high = new_rd_Store(dbg, irg, block, proj, high, entry->high_word);
450 set_Store_volatility(low, get_Store_volatility(node));
451 set_Store_volatility(high, get_Store_volatility(node));
453 idx = get_irn_idx(node);
454 assert(idx < env->n_entries);
455 env->entries[idx]->low_word = low;
456 env->entries[idx]->high_word = high;
458 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
459 idx = get_irn_idx(proj);
461 switch (get_Proj_proj(proj)) {
462 case pn_Store_M: /* Memory result. */
463 /* put it to the second one */
464 set_Proj_pred(proj, high);
466 case pn_Store_X_except: /* Execution result if exception occurred. */
467 /* put it to the first one */
468 set_Proj_pred(proj, low);
471 assert(0 && "unexpected Proj number");
473 /* mark this proj: we have handled it already, otherwise we might fall into
475 mark_irn_visited(proj);
480 * Return a node containing the address of the intrinsic emulation function.
482 * @param method the method type of the emulation function
483 * @param op the emulated ir_op
484 * @param imode the input mode of the emulated opcode
485 * @param omode the output mode of the emulated opcode
486 * @param block where the new mode is created
487 * @param env the lower environment
489 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
490 ir_mode *imode, ir_mode *omode,
491 ir_node *block, lower_env_t *env) {
494 op_mode_entry_t key, *entry;
501 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
502 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
504 /* create a new one */
505 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
507 assert(ent && "Intrinsic creator must return an entity");
513 return new_r_SymConst(current_ir_graph, block, sym, symconst_addr_ent);
514 } /* get_intrinsic_address */
519 * Create an intrinsic Call.
521 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env) {
522 ir_node *block, *irn, *call, *proj;
531 irn = get_Div_left(node);
532 entry = env->entries[get_irn_idx(irn)];
535 if (! entry->low_word) {
536 /* not ready yet, wait */
537 pdeq_putr(env->waitq, node);
541 in[0] = entry->low_word;
542 in[1] = entry->high_word;
544 irn = get_Div_right(node);
545 entry = env->entries[get_irn_idx(irn)];
548 if (! entry->low_word) {
549 /* not ready yet, wait */
550 pdeq_putr(env->waitq, node);
554 in[2] = entry->low_word;
555 in[3] = entry->high_word;
557 dbg = get_irn_dbg_info(node);
558 block = get_nodes_block(node);
559 irg = current_ir_graph;
561 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
562 opmode = get_irn_op_mode(node);
563 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
564 call = new_rd_Call(dbg, irg, block, get_Div_mem(node),
566 set_irn_pinned(call, get_irn_pinned(node));
567 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
569 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
570 switch (get_Proj_proj(proj)) {
571 case pn_Div_M: /* Memory result. */
572 /* reroute to the call */
573 set_Proj_pred(proj, call);
574 set_Proj_proj(proj, pn_Call_M_except);
576 case pn_Div_X_except: /* Execution result if exception occurred. */
577 /* reroute to the call */
578 set_Proj_pred(proj, call);
579 set_Proj_proj(proj, pn_Call_X_except);
581 case pn_Div_res: /* Result of computation. */
582 idx = get_irn_idx(proj);
583 assert(idx < env->n_entries);
584 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
585 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
588 assert(0 && "unexpected Proj number");
590 /* mark this proj: we have handled it already, otherwise we might fall into
592 mark_irn_visited(proj);
599 * Create an intrinsic Call.
601 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env) {
602 ir_node *block, *proj, *irn, *call;
611 irn = get_Mod_left(node);
612 entry = env->entries[get_irn_idx(irn)];
615 if (! entry->low_word) {
616 /* not ready yet, wait */
617 pdeq_putr(env->waitq, node);
621 in[0] = entry->low_word;
622 in[1] = entry->high_word;
624 irn = get_Mod_right(node);
625 entry = env->entries[get_irn_idx(irn)];
628 if (! entry->low_word) {
629 /* not ready yet, wait */
630 pdeq_putr(env->waitq, node);
634 in[2] = entry->low_word;
635 in[3] = entry->high_word;
637 dbg = get_irn_dbg_info(node);
638 block = get_nodes_block(node);
639 irg = current_ir_graph;
641 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
642 opmode = get_irn_op_mode(node);
643 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
644 call = new_rd_Call(dbg, irg, block, get_Mod_mem(node),
646 set_irn_pinned(call, get_irn_pinned(node));
647 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
649 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
650 switch (get_Proj_proj(proj)) {
651 case pn_Mod_M: /* Memory result. */
652 /* reroute to the call */
653 set_Proj_pred(proj, call);
654 set_Proj_proj(proj, pn_Call_M_except);
656 case pn_Mod_X_except: /* Execution result if exception occurred. */
657 /* reroute to the call */
658 set_Proj_pred(proj, call);
659 set_Proj_proj(proj, pn_Call_X_except);
661 case pn_Mod_res: /* Result of computation. */
662 idx = get_irn_idx(proj);
663 assert(idx < env->n_entries);
664 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
665 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
668 assert(0 && "unexpected Proj number");
670 /* mark this proj: we have handled it already, otherwise we might fall into
672 mark_irn_visited(proj);
677 * Translate a DivMod.
679 * Create two intrinsic Calls.
681 static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env) {
682 ir_node *block, *proj, *irn, *mem, *callDiv, *callMod, *resDiv, *resMod;
692 /* check if both results are needed */
693 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
694 switch (get_Proj_proj(proj)) {
695 case pn_DivMod_res_div: flags |= 1; break;
696 case pn_DivMod_res_mod: flags |= 2; break;
701 irn = get_DivMod_left(node);
702 entry = env->entries[get_irn_idx(irn)];
705 if (! entry->low_word) {
706 /* not ready yet, wait */
707 pdeq_putr(env->waitq, node);
711 in[0] = entry->low_word;
712 in[1] = entry->high_word;
714 irn = get_DivMod_right(node);
715 entry = env->entries[get_irn_idx(irn)];
718 if (! entry->low_word) {
719 /* not ready yet, wait */
720 pdeq_putr(env->waitq, node);
724 in[2] = entry->low_word;
725 in[3] = entry->high_word;
727 dbg = get_irn_dbg_info(node);
728 block = get_nodes_block(node);
729 irg = current_ir_graph;
731 mem = get_DivMod_mem(node);
733 callDiv = callMod = NULL;
734 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
736 opmode = get_irn_op_mode(node);
737 irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, block, env);
738 callDiv = new_rd_Call(dbg, irg, block, mem,
740 set_irn_pinned(callDiv, get_irn_pinned(node));
741 resDiv = new_r_Proj(irg, block, callDiv, mode_T, pn_Call_T_result);
745 mem = new_r_Proj(irg, block, callDiv, mode_M, pn_Call_M);
746 opmode = get_irn_op_mode(node);
747 irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, block, env);
748 callMod = new_rd_Call(dbg, irg, block, mem,
750 set_irn_pinned(callMod, get_irn_pinned(node));
751 resMod = new_r_Proj(irg, block, callMod, mode_T, pn_Call_T_result);
754 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
755 switch (get_Proj_proj(proj)) {
756 case pn_DivMod_M: /* Memory result. */
757 /* reroute to the first call */
758 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
759 set_Proj_proj(proj, pn_Call_M_except);
761 case pn_DivMod_X_except: /* Execution result if exception occurred. */
762 /* reroute to the first call */
763 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
764 set_Proj_proj(proj, pn_Call_X_except);
766 case pn_DivMod_res_div: /* Result of Div. */
767 idx = get_irn_idx(proj);
768 assert(idx < env->n_entries);
769 env->entries[idx]->low_word = new_r_Proj(irg, block, resDiv, mode, 0);
770 env->entries[idx]->high_word = new_r_Proj(irg, block, resDiv, mode, 1);
772 case pn_DivMod_res_mod: /* Result of Mod. */
773 idx = get_irn_idx(proj);
774 env->entries[idx]->low_word = new_r_Proj(irg, block, resMod, mode, 0);
775 env->entries[idx]->high_word = new_r_Proj(irg, block, resMod, mode, 1);
778 assert(0 && "unexpected Proj number");
780 /* mark this proj: we have handled it already, otherwise we might fall into
782 mark_irn_visited(proj);
789 * Create an intrinsic Call.
791 static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env) {
792 ir_node *block, *irn;
800 irn = get_binop_left(node);
801 entry = env->entries[get_irn_idx(irn)];
804 if (! entry->low_word) {
805 /* not ready yet, wait */
806 pdeq_putr(env->waitq, node);
810 in[0] = entry->low_word;
811 in[1] = entry->high_word;
813 irn = get_binop_right(node);
814 entry = env->entries[get_irn_idx(irn)];
817 if (! entry->low_word) {
818 /* not ready yet, wait */
819 pdeq_putr(env->waitq, node);
823 in[2] = entry->low_word;
824 in[3] = entry->high_word;
826 dbg = get_irn_dbg_info(node);
827 block = get_nodes_block(node);
828 irg = current_ir_graph;
830 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
831 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
832 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
834 set_irn_pinned(irn, get_irn_pinned(node));
835 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
837 idx = get_irn_idx(node);
838 assert(idx < env->n_entries);
839 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
840 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
844 * Translate a Shiftop.
846 * Create an intrinsic Call.
848 static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env) {
849 ir_node *block, *irn;
857 irn = get_binop_left(node);
858 entry = env->entries[get_irn_idx(irn)];
861 if (! entry->low_word) {
862 /* not ready yet, wait */
863 pdeq_putr(env->waitq, node);
867 in[0] = entry->low_word;
868 in[1] = entry->high_word;
870 /* The shift count is always mode_Iu in firm, so there is no need for lowering */
871 in[2] = get_binop_right(node);
873 dbg = get_irn_dbg_info(node);
874 block = get_nodes_block(node);
875 irg = current_ir_graph;
877 mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
878 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
879 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
881 set_irn_pinned(irn, get_irn_pinned(node));
882 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
884 idx = get_irn_idx(node);
885 assert(idx < env->n_entries);
886 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
887 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
888 } /* lower_Shiftop */
891 * Translate a Shr and handle special cases.
893 static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env) {
894 ir_node *right = get_Shr_right(node);
895 ir_graph *irg = current_ir_graph;
897 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
898 tarval *tv = get_Const_tarval(right);
900 if (tarval_is_long(tv) &&
901 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
902 ir_node *block = get_nodes_block(node);
903 ir_node *left = get_Shr_left(node);
905 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
906 int idx = get_irn_idx(left);
908 left = env->entries[idx]->high_word;
909 idx = get_irn_idx(node);
912 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
913 env->entries[idx]->low_word = new_r_Shr(irg, block, left, c, mode);
915 env->entries[idx]->low_word = left;
917 env->entries[idx]->high_word = new_r_Const(irg, block, mode, get_mode_null(mode));
922 lower_Shiftop(node, mode, env);
926 * Translate a Shl and handle special cases.
928 static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env) {
929 ir_node *right = get_Shl_right(node);
930 ir_graph *irg = current_ir_graph;
932 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
933 tarval *tv = get_Const_tarval(right);
935 if (tarval_is_long(tv) &&
936 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
937 ir_node *block = get_nodes_block(node);
938 ir_node *left = get_Shl_left(node);
940 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
941 int idx = get_irn_idx(left);
943 left = env->entries[idx]->low_word;
944 idx = get_irn_idx(node);
947 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
948 env->entries[idx]->high_word = new_r_Shl(irg, block, left, c, mode);
950 env->entries[idx]->high_word = left;
952 env->entries[idx]->low_word = new_r_Const(irg, block, mode, get_mode_null(mode));
957 lower_Shiftop(node, mode, env);
961 * Translate a Shrs and handle special cases.
963 static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env) {
964 ir_node *right = get_Shrs_right(node);
965 ir_graph *irg = current_ir_graph;
967 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
968 tarval *tv = get_Const_tarval(right);
970 if (tarval_is_long(tv) &&
971 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
972 ir_node *block = get_nodes_block(node);
973 ir_node *left = get_Shrs_left(node);
974 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
976 int idx = get_irn_idx(left);
978 left = env->entries[idx]->high_word;
979 idx = get_irn_idx(node);
982 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
983 env->entries[idx]->low_word = new_r_Shrs(irg, block, left, c, mode);
985 env->entries[idx]->low_word = left;
987 c = new_r_Const_long(irg, block, mode_Iu, get_mode_size_bits(mode) - 1);
988 env->entries[idx]->high_word = new_r_Shrs(irg, block, left, c, mode);
993 lower_Shiftop(node, mode, env);
997 * Translate a Rot and handle special cases.
999 static void lower_Rot(ir_node *node, ir_mode *mode, lower_env_t *env) {
1000 ir_node *right = get_Rot_right(node);
1002 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
1003 tarval *tv = get_Const_tarval(right);
1005 if (tarval_is_long(tv) &&
1006 get_tarval_long(tv) == get_mode_size_bits(mode)) {
1007 ir_node *left = get_Rot_left(node);
1009 int idx = get_irn_idx(left);
1011 l = env->entries[idx]->low_word;
1012 h = env->entries[idx]->high_word;
1013 idx = get_irn_idx(node);
1015 env->entries[idx]->low_word = h;
1016 env->entries[idx]->high_word = l;
1021 lower_Shiftop(node, mode, env);
1025 * Translate an Unop.
1027 * Create an intrinsic Call.
1029 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
1030 ir_node *block, *irn;
1036 node_entry_t *entry;
1038 irn = get_unop_op(node);
1039 entry = env->entries[get_irn_idx(irn)];
1042 if (! entry->low_word) {
1043 /* not ready yet, wait */
1044 pdeq_putr(env->waitq, node);
1048 in[0] = entry->low_word;
1049 in[1] = entry->high_word;
1051 dbg = get_irn_dbg_info(node);
1052 block = get_nodes_block(node);
1053 irg = current_ir_graph;
1055 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
1056 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
1057 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
1059 set_irn_pinned(irn, get_irn_pinned(node));
1060 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
1062 idx = get_irn_idx(node);
1063 assert(idx < env->n_entries);
1064 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
1065 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
1069 * Translate a logical Binop.
1071 * Create two logical Binops.
1073 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
1074 ir_node *(*constr_rd)(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
1075 ir_node *block, *irn;
1076 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
1080 node_entry_t *entry;
1082 irn = get_binop_left(node);
1083 entry = env->entries[get_irn_idx(irn)];
1086 if (! entry->low_word) {
1087 /* not ready yet, wait */
1088 pdeq_putr(env->waitq, node);
1092 lop_l = entry->low_word;
1093 lop_h = entry->high_word;
1095 irn = get_binop_right(node);
1096 entry = env->entries[get_irn_idx(irn)];
1099 if (! entry->low_word) {
1100 /* not ready yet, wait */
1101 pdeq_putr(env->waitq, node);
1105 rop_l = entry->low_word;
1106 rop_h = entry->high_word;
1108 dbg = get_irn_dbg_info(node);
1109 block = get_nodes_block(node);
1111 idx = get_irn_idx(node);
1112 assert(idx < env->n_entries);
1113 irg = current_ir_graph;
1114 env->entries[idx]->low_word = constr_rd(dbg, irg, block, lop_l, rop_l, mode);
1115 env->entries[idx]->high_word = constr_rd(dbg, irg, block, lop_h, rop_h, mode);
1116 } /* lower_Binop_logical */
1118 /** create a logical operation tranformation */
1119 #define lower_logical(op) \
1120 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
1121 lower_Binop_logical(node, mode, env, new_rd_##op); \
1131 * Create two logical Nots.
1133 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env) {
1134 ir_node *block, *irn;
1135 ir_node *op_l, *op_h;
1139 node_entry_t *entry;
1141 irn = get_Not_op(node);
1142 entry = env->entries[get_irn_idx(irn)];
1145 if (! entry->low_word) {
1146 /* not ready yet, wait */
1147 pdeq_putr(env->waitq, node);
1151 op_l = entry->low_word;
1152 op_h = entry->high_word;
1154 dbg = get_irn_dbg_info(node);
1155 block = get_nodes_block(node);
1156 irg = current_ir_graph;
1158 idx = get_irn_idx(node);
1159 assert(idx < env->n_entries);
1160 env->entries[idx]->low_word = new_rd_Not(dbg, current_ir_graph, block, op_l, mode);
1161 env->entries[idx]->high_word = new_rd_Not(dbg, current_ir_graph, block, op_h, mode);
1167 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env) {
1168 ir_node *cmp, *left, *right, *block;
1169 ir_node *sel = get_Cond_selector(node);
1170 ir_mode *m = get_irn_mode(sel);
1174 node_entry_t *lentry, *rentry;
1175 ir_node *proj, *projT = NULL, *projF = NULL;
1176 ir_node *new_bl, *cmpH, *cmpL, *irn;
1177 ir_node *projHF, *projHT;
1183 cmp = get_Proj_pred(sel);
1184 left = get_Cmp_left(cmp);
1185 idx = get_irn_idx(left);
1186 lentry = env->entries[idx];
1193 right = get_Cmp_right(cmp);
1194 idx = get_irn_idx(right);
1195 rentry = env->entries[idx];
1198 if (! lentry->low_word || !rentry->low_word) {
1200 pdeq_putr(env->waitq, node);
1204 /* all right, build the code */
1205 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1206 long proj_nr = get_Proj_proj(proj);
1208 if (proj_nr == pn_Cond_true) {
1209 assert(projT == NULL && "more than one Proj(true)");
1212 assert(proj_nr == pn_Cond_false);
1213 assert(projF == NULL && "more than one Proj(false)");
1216 mark_irn_visited(proj);
1218 assert(projT && projF);
1220 /* create a new high compare */
1221 block = get_nodes_block(cmp);
1222 dbg = get_irn_dbg_info(cmp);
1223 irg = current_ir_graph;
1225 cmpH = new_rd_Cmp(dbg, irg, block, lentry->high_word, rentry->high_word);
1227 pnc = get_Proj_proj(sel);
1228 if (pnc == pn_Cmp_Eq) {
1229 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1230 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1233 dst_blk = entry->value;
1235 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Eq);
1236 dbg = get_irn_dbg_info(node);
1237 irn = new_rd_Cond(dbg, irg, block, irn);
1239 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1240 mark_irn_visited(projHF);
1241 exchange(projF, projHF);
1243 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1244 mark_irn_visited(projHT);
1246 new_bl = new_r_Block(irg, 1, &projHT);
1248 dbg = get_irn_dbg_info(cmp);
1249 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1250 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Eq);
1251 dbg = get_irn_dbg_info(node);
1252 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1254 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1255 mark_irn_visited(proj);
1256 add_block_cf_input(dst_blk, projHF, proj);
1258 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1259 mark_irn_visited(proj);
1260 exchange(projT, proj);
1261 } else if (pnc == pn_Cmp_Lg) {
1262 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1263 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1266 dst_blk = entry->value;
1268 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Lg);
1269 dbg = get_irn_dbg_info(node);
1270 irn = new_rd_Cond(dbg, irg, block, irn);
1272 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1273 mark_irn_visited(projHT);
1274 exchange(projT, projHT);
1276 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1277 mark_irn_visited(projHF);
1279 new_bl = new_r_Block(irg, 1, &projHF);
1281 dbg = get_irn_dbg_info(cmp);
1282 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1283 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Lg);
1284 dbg = get_irn_dbg_info(node);
1285 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1287 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1288 mark_irn_visited(proj);
1289 add_block_cf_input(dst_blk, projHT, proj);
1291 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1292 mark_irn_visited(proj);
1293 exchange(projF, proj);
1295 /* a rel b <==> a_h rel b_h || (a_h == b_h && a_l rel b_l) */
1296 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1299 entry = pmap_find(env->proj_2_block, projT);
1301 dstT = entry->value;
1303 entry = pmap_find(env->proj_2_block, projF);
1305 dstF = entry->value;
1307 irn = new_r_Proj(irg, block, cmpH, mode_b, pnc);
1308 dbg = get_irn_dbg_info(node);
1309 irn = new_rd_Cond(dbg, irg, block, irn);
1311 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1312 mark_irn_visited(projHT);
1313 exchange(projT, projHT);
1316 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1317 mark_irn_visited(projHF);
1319 newbl_eq = new_r_Block(irg, 1, &projHF);
1321 irn = new_r_Proj(irg, newbl_eq, cmpH, mode_b, pn_Cmp_Eq);
1322 irn = new_rd_Cond(dbg, irg, newbl_eq, irn);
1324 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_false);
1325 mark_irn_visited(proj);
1326 exchange(projF, proj);
1329 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_true);
1330 mark_irn_visited(proj);
1332 newbl_l = new_r_Block(irg, 1, &proj);
1334 dbg = get_irn_dbg_info(cmp);
1335 cmpL = new_rd_Cmp(dbg, irg, newbl_l, lentry->low_word, rentry->low_word);
1336 irn = new_r_Proj(irg, newbl_l, cmpL, mode_b, pnc);
1337 dbg = get_irn_dbg_info(node);
1338 irn = new_rd_Cond(dbg, irg, newbl_l, irn);
1340 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_true);
1341 mark_irn_visited(proj);
1342 add_block_cf_input(dstT, projT, proj);
1344 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_false);
1345 mark_irn_visited(proj);
1346 add_block_cf_input(dstF, projF, proj);
1349 /* we have changed the control flow */
1350 env->flags |= CF_CHANGED;
1352 idx = get_irn_idx(sel);
1354 if (env->entries[idx]) {
1356 Bad, a jump-table with double-word index.
1357 This should not happen, but if it does we handle
1358 it like a Conv were between (in other words, ignore
1362 if (! env->entries[idx]->low_word) {
1363 /* not ready yet, wait */
1364 pdeq_putr(env->waitq, node);
1367 set_Cond_selector(node, env->entries[idx]->low_word);
1373 * Translate a Conv to higher_signed
1375 static void lower_Conv_to_Ls(ir_node *node, lower_env_t *env) {
1376 ir_node *op = get_Conv_op(node);
1377 ir_mode *imode = get_irn_mode(op);
1378 ir_mode *dst_mode = env->params->low_signed;
1379 int idx = get_irn_idx(node);
1380 ir_graph *irg = current_ir_graph;
1381 ir_node *block = get_nodes_block(node);
1382 dbg_info *dbg = get_irn_dbg_info(node);
1384 assert(idx < env->n_entries);
1386 if (mode_is_int(imode) || mode_is_reference(imode)) {
1387 if (imode == env->params->high_unsigned) {
1388 /* a Conv from Lu to Ls */
1389 int op_idx = get_irn_idx(op);
1391 if (! env->entries[op_idx]->low_word) {
1392 /* not ready yet, wait */
1393 pdeq_putr(env->waitq, node);
1396 env->entries[idx]->low_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->low_word, dst_mode);
1397 env->entries[idx]->high_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->high_word, dst_mode);
1399 /* simple case: create a high word */
1400 if (imode != dst_mode)
1401 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1403 env->entries[idx]->low_word = op;
1404 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op,
1405 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode) - 1), dst_mode);
1408 ir_node *irn, *call;
1409 ir_mode *omode = env->params->high_signed;
1410 ir_type *mtp = get_conv_type(imode, omode, env);
1412 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1413 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1414 set_irn_pinned(call, get_irn_pinned(node));
1415 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1417 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1418 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1420 } /* lower_Conv_to_Ls */
1423 * Translate a Conv to higher_unsigned
1425 static void lower_Conv_to_Lu(ir_node *node, lower_env_t *env) {
1426 ir_node *op = get_Conv_op(node);
1427 ir_mode *imode = get_irn_mode(op);
1428 ir_mode *dst_mode = env->params->low_unsigned;
1429 int idx = get_irn_idx(node);
1430 ir_graph *irg = current_ir_graph;
1431 ir_node *block = get_nodes_block(node);
1432 dbg_info *dbg = get_irn_dbg_info(node);
1434 assert(idx < env->n_entries);
1436 if (mode_is_int(imode) || mode_is_reference(imode)) {
1437 if (imode == env->params->high_signed) {
1438 /* a Conv from Ls to Lu */
1439 int op_idx = get_irn_idx(op);
1441 if (! env->entries[op_idx]->low_word) {
1442 /* not ready yet, wait */
1443 pdeq_putr(env->waitq, node);
1446 env->entries[idx]->low_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->low_word, dst_mode);
1447 env->entries[idx]->high_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->high_word, dst_mode);
1449 /* simple case: create a high word */
1450 if (imode != dst_mode)
1451 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1453 env->entries[idx]->low_word = op;
1454 env->entries[idx]->high_word = new_Const(dst_mode, get_mode_null(dst_mode));
1457 ir_node *irn, *call;
1458 ir_mode *omode = env->params->high_unsigned;
1459 ir_type *mtp = get_conv_type(imode, omode, env);
1461 /* do an intrinsic call */
1462 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1463 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1464 set_irn_pinned(call, get_irn_pinned(node));
1465 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1467 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1468 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1470 } /* lower_Conv_to_Lu */
1473 * Translate a Conv from higher_signed
1475 static void lower_Conv_from_Ls(ir_node *node, lower_env_t *env) {
1476 ir_node *op = get_Conv_op(node);
1477 ir_mode *omode = get_irn_mode(node);
1478 ir_node *block = get_nodes_block(node);
1479 dbg_info *dbg = get_irn_dbg_info(node);
1480 int idx = get_irn_idx(op);
1481 ir_graph *irg = current_ir_graph;
1483 assert(idx < env->n_entries);
1485 if (mode_is_int(omode) || mode_is_reference(omode)) {
1486 op = env->entries[idx]->low_word;
1488 /* simple case: create a high word */
1489 if (omode != env->params->low_signed)
1490 op = new_rd_Conv(dbg, irg, block, op, omode);
1492 set_Conv_op(node, op);
1494 ir_node *irn, *call, *in[2];
1495 ir_mode *imode = env->params->high_signed;
1496 ir_type *mtp = get_conv_type(imode, omode, env);
1498 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1499 in[0] = env->entries[idx]->low_word;
1500 in[1] = env->entries[idx]->high_word;
1502 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1503 set_irn_pinned(call, get_irn_pinned(node));
1504 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1506 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1508 } /* lower_Conv_from_Ls */
1511 * Translate a Conv from higher_unsigned
1513 static void lower_Conv_from_Lu(ir_node *node, lower_env_t *env) {
1514 ir_node *op = get_Conv_op(node);
1515 ir_mode *omode = get_irn_mode(node);
1516 ir_node *block = get_nodes_block(node);
1517 dbg_info *dbg = get_irn_dbg_info(node);
1518 int idx = get_irn_idx(op);
1519 ir_graph *irg = current_ir_graph;
1521 assert(idx < env->n_entries);
1523 if (mode_is_int(omode) || mode_is_reference(omode)) {
1524 op = env->entries[idx]->low_word;
1526 /* simple case: create a high word */
1527 if (omode != env->params->low_unsigned)
1528 op = new_rd_Conv(dbg, irg, block, op, omode);
1530 set_Conv_op(node, op);
1532 ir_node *irn, *call, *in[2];
1533 ir_mode *imode = env->params->high_unsigned;
1534 ir_type *mtp = get_conv_type(imode, omode, env);
1536 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1537 in[0] = env->entries[idx]->low_word;
1538 in[1] = env->entries[idx]->high_word;
1540 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1541 set_irn_pinned(call, get_irn_pinned(node));
1542 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1544 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1546 } /* lower_Conv_from_Lu */
1551 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env) {
1552 mode = get_irn_mode(node);
1554 if (mode == env->params->high_signed) {
1555 lower_Conv_to_Ls(node, env);
1556 } else if (mode == env->params->high_unsigned) {
1557 lower_Conv_to_Lu(node, env);
1559 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1561 if (mode == env->params->high_signed) {
1562 lower_Conv_from_Ls(node, env);
1563 } else if (mode == env->params->high_unsigned) {
1564 lower_Conv_from_Lu(node, env);
1570 * Lower the method type.
1572 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env) {
1577 if (is_lowered_type(mtp))
1580 entry = pmap_find(lowered_type, mtp);
1582 int i, n, r, n_param, n_res;
1584 /* count new number of params */
1585 n_param = n = get_method_n_params(mtp);
1586 for (i = n_param - 1; i >= 0; --i) {
1587 ir_type *tp = get_method_param_type(mtp, i);
1589 if (is_Primitive_type(tp)) {
1590 ir_mode *mode = get_type_mode(tp);
1592 if (mode == env->params->high_signed ||
1593 mode == env->params->high_unsigned)
1598 /* count new number of results */
1599 n_res = r = get_method_n_ress(mtp);
1600 for (i = n_res - 1; i >= 0; --i) {
1601 ir_type *tp = get_method_res_type(mtp, i);
1603 if (is_Primitive_type(tp)) {
1604 ir_mode *mode = get_type_mode(tp);
1606 if (mode == env->params->high_signed ||
1607 mode == env->params->high_unsigned)
1612 id = mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
1613 res = new_type_method(id, n_param, n_res);
1615 /* set param types and result types */
1616 for (i = n_param = 0; i < n; ++i) {
1617 ir_type *tp = get_method_param_type(mtp, i);
1619 if (is_Primitive_type(tp)) {
1620 ir_mode *mode = get_type_mode(tp);
1622 if (mode == env->params->high_signed) {
1623 set_method_param_type(res, n_param++, tp_s);
1624 set_method_param_type(res, n_param++, tp_s);
1625 } else if (mode == env->params->high_unsigned) {
1626 set_method_param_type(res, n_param++, tp_u);
1627 set_method_param_type(res, n_param++, tp_u);
1629 set_method_param_type(res, n_param++, tp);
1632 set_method_param_type(res, n_param++, tp);
1635 for (i = n_res = 0; i < r; ++i) {
1636 ir_type *tp = get_method_res_type(mtp, i);
1638 if (is_Primitive_type(tp)) {
1639 ir_mode *mode = get_type_mode(tp);
1641 if (mode == env->params->high_signed) {
1642 set_method_res_type(res, n_res++, tp_s);
1643 set_method_res_type(res, n_res++, tp_s);
1644 } else if (mode == env->params->high_unsigned) {
1645 set_method_res_type(res, n_res++, tp_u);
1646 set_method_res_type(res, n_res++, tp_u);
1648 set_method_res_type(res, n_res++, tp);
1651 set_method_res_type(res, n_res++, tp);
1654 set_lowered_type(mtp, res);
1655 pmap_insert(lowered_type, mtp, res);
1663 * Translate a Return.
1665 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env) {
1666 ir_graph *irg = current_ir_graph;
1667 entity *ent = get_irg_entity(irg);
1668 ir_type *mtp = get_entity_type(ent);
1673 /* check if this return must be lowered */
1674 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1675 ir_node *pred = get_Return_res(node, i);
1676 ir_mode *mode = get_irn_op_mode(pred);
1678 if (mode == env->params->high_signed ||
1679 mode == env->params->high_unsigned) {
1680 idx = get_irn_idx(pred);
1681 if (! env->entries[idx]->low_word) {
1682 /* not ready yet, wait */
1683 pdeq_putr(env->waitq, node);
1692 ent = get_irg_entity(irg);
1693 mtp = get_entity_type(ent);
1695 mtp = lower_mtp(mtp, env);
1696 set_entity_type(ent, mtp);
1698 /* create a new in array */
1699 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1700 in[0] = get_Return_mem(node);
1702 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1703 ir_node *pred = get_Return_res(node, i);
1705 idx = get_irn_idx(pred);
1706 assert(idx < env->n_entries);
1708 if (env->entries[idx]) {
1709 in[++j] = env->entries[idx]->low_word;
1710 in[++j] = env->entries[idx]->high_word;
1716 set_irn_in(node, j+1, in);
1717 } /* lower_Return */
1720 * Translate the parameters.
1722 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env) {
1723 ir_graph *irg = current_ir_graph;
1724 entity *ent = get_irg_entity(irg);
1725 ir_type *tp = get_entity_type(ent);
1728 int i, j, n_params, rem;
1729 ir_node *proj, *args;
1731 if (is_lowered_type(tp)) {
1732 mtp = get_associated_type(tp);
1736 assert(! is_lowered_type(mtp));
1738 n_params = get_method_n_params(mtp);
1742 NEW_ARR_A(long, new_projs, n_params);
1744 /* first check if we have parameters that must be fixed */
1745 for (i = j = 0; i < n_params; ++i, ++j) {
1746 ir_type *tp = get_method_param_type(mtp, i);
1749 if (is_Primitive_type(tp)) {
1750 ir_mode *mode = get_type_mode(tp);
1752 if (mode == env->params->high_signed ||
1753 mode == env->params->high_unsigned)
1760 mtp = lower_mtp(mtp, env);
1761 set_entity_type(ent, mtp);
1763 /* switch off optimization for new Proj nodes or they might be CSE'ed
1764 with not patched one's */
1765 rem = get_optimize();
1768 /* ok, fix all Proj's and create new ones */
1769 args = get_irg_args(irg);
1770 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1771 ir_node *pred = get_Proj_pred(proj);
1777 /* do not visit this node again */
1778 mark_irn_visited(proj);
1783 proj_nr = get_Proj_proj(proj);
1784 set_Proj_proj(proj, new_projs[proj_nr]);
1786 idx = get_irn_idx(proj);
1787 if (env->entries[idx]) {
1788 mode = get_irn_mode(proj);
1790 if (mode == env->params->high_signed) {
1791 mode = env->params->low_signed;
1793 mode = env->params->low_unsigned;
1796 dbg = get_irn_dbg_info(proj);
1797 env->entries[idx]->low_word =
1798 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr]);
1799 env->entries[idx]->high_word =
1800 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr] + 1);
1809 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env) {
1810 ir_graph *irg = current_ir_graph;
1811 ir_type *tp = get_Call_type(node);
1813 ir_node **in, *proj, *results;
1814 int n_params, n_res, need_lower = 0;
1816 long *res_numbers = NULL;
1818 if (is_lowered_type(tp)) {
1819 call_tp = get_associated_type(tp);
1824 assert(! is_lowered_type(call_tp));
1826 n_params = get_method_n_params(call_tp);
1827 for (i = 0; i < n_params; ++i) {
1828 ir_type *tp = get_method_param_type(call_tp, i);
1830 if (is_Primitive_type(tp)) {
1831 ir_mode *mode = get_type_mode(tp);
1833 if (mode == env->params->high_signed ||
1834 mode == env->params->high_unsigned) {
1840 n_res = get_method_n_ress(call_tp);
1842 NEW_ARR_A(long, res_numbers, n_res);
1844 for (i = j = 0; i < n_res; ++i, ++j) {
1845 ir_type *tp = get_method_res_type(call_tp, i);
1848 if (is_Primitive_type(tp)) {
1849 ir_mode *mode = get_type_mode(tp);
1851 if (mode == env->params->high_signed ||
1852 mode == env->params->high_unsigned) {
1863 /* let's lower it */
1864 call_tp = lower_mtp(call_tp, env);
1865 set_Call_type(node, call_tp);
1867 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1869 in[0] = get_Call_mem(node);
1870 in[1] = get_Call_ptr(node);
1872 for (j = 2, i = 0; i < n_params; ++i) {
1873 ir_node *pred = get_Call_param(node, i);
1874 int idx = get_irn_idx(pred);
1876 if (env->entries[idx]) {
1877 if (! env->entries[idx]->low_word) {
1878 /* not ready yet, wait */
1879 pdeq_putr(env->waitq, node);
1882 in[j++] = env->entries[idx]->low_word;
1883 in[j++] = env->entries[idx]->high_word;
1889 set_irn_in(node, j, in);
1891 /* fix the results */
1893 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1894 long proj_nr = get_Proj_proj(proj);
1896 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1897 /* found the result proj */
1903 if (results) { /* there are results */
1904 int rem = get_optimize();
1906 /* switch off optimization for new Proj nodes or they might be CSE'ed
1907 with not patched one's */
1909 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1910 if (get_Proj_pred(proj) == results) {
1911 long proj_nr = get_Proj_proj(proj);
1914 /* found a result */
1915 set_Proj_proj(proj, res_numbers[proj_nr]);
1916 idx = get_irn_idx(proj);
1917 if (env->entries[idx]) {
1918 ir_mode *mode = get_irn_mode(proj);
1921 if (mode == env->params->high_signed) {
1922 mode = env->params->low_signed;
1924 mode = env->params->low_unsigned;
1927 dbg = get_irn_dbg_info(proj);
1928 env->entries[idx]->low_word =
1929 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr]);
1930 env->entries[idx]->high_word =
1931 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr] + 1);
1933 mark_irn_visited(proj);
1941 * Translate an Unknown into two.
1943 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env) {
1944 int idx = get_irn_idx(node);
1945 ir_graph *irg = current_ir_graph;
1947 env->entries[idx]->low_word =
1948 env->entries[idx]->high_word = new_r_Unknown(irg, mode);
1949 } /* lower_Unknown */
1954 * First step: just create two templates
1956 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env) {
1957 ir_graph *irg = current_ir_graph;
1958 ir_node *block, *unk;
1959 ir_node **inl, **inh;
1961 int idx, i, arity = get_Phi_n_preds(phi);
1964 idx = get_irn_idx(phi);
1965 if (env->entries[idx]->low_word) {
1966 /* Phi nodes already build, check for inputs */
1967 ir_node *phil = env->entries[idx]->low_word;
1968 ir_node *phih = env->entries[idx]->high_word;
1970 for (i = 0; i < arity; ++i) {
1971 ir_node *pred = get_Phi_pred(phi, i);
1972 int idx = get_irn_idx(pred);
1974 if (env->entries[idx]->low_word) {
1975 set_Phi_pred(phil, i, env->entries[idx]->low_word);
1976 set_Phi_pred(phih, i, env->entries[idx]->high_word);
1978 /* still not ready */
1979 pdeq_putr(env->waitq, phi);
1985 /* first create a new in array */
1986 NEW_ARR_A(ir_node *, inl, arity);
1987 NEW_ARR_A(ir_node *, inh, arity);
1988 unk = new_r_Unknown(irg, mode);
1990 for (i = 0; i < arity; ++i) {
1991 ir_node *pred = get_Phi_pred(phi, i);
1992 int idx = get_irn_idx(pred);
1994 if (env->entries[idx]->low_word) {
1995 inl[i] = env->entries[idx]->low_word;
1996 inh[i] = env->entries[idx]->high_word;
2004 dbg = get_irn_dbg_info(phi);
2005 block = get_nodes_block(phi);
2007 idx = get_irn_idx(phi);
2008 assert(idx < env->n_entries);
2009 env->entries[idx]->low_word = new_rd_Phi(dbg, irg, block, arity, inl, mode);
2010 env->entries[idx]->high_word = new_rd_Phi(dbg, irg, block, arity, inh, mode);
2013 /* not yet finished */
2014 pdeq_putr(env->waitq, phi);
2019 * check for opcodes that must always be lowered.
2021 static int always_lower(opcode code) {
2032 } /* always_lower */
2035 * The type of a lower function.
2037 * @param node the node to be lowered
2038 * @param mode the low mode for the destination node
2039 * @param env the lower environment
2041 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
2046 static void lower_ops(ir_node *node, void *env)
2048 lower_env_t *lenv = env;
2049 node_entry_t *entry;
2050 int idx = get_irn_idx(node);
2052 entry = lenv->entries[idx];
2053 if (entry || always_lower(get_irn_opcode(node))) {
2054 ir_op *op = get_irn_op(node);
2055 lower_func func = (lower_func)op->ops.generic;
2058 ir_mode *mode = get_irn_op_mode(node);
2060 if (mode == lenv->params->high_signed)
2061 mode = lenv->params->low_signed;
2063 mode = lenv->params->low_unsigned;
2065 DB((dbg, LEVEL_1, " %+F\n", node));
2066 func(node, mode, lenv);
2071 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
2074 * Compare two op_mode_entry_t's.
2076 static int cmp_op_mode(const void *elt, const void *key, size_t size) {
2077 const op_mode_entry_t *e1 = elt;
2078 const op_mode_entry_t *e2 = key;
2080 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
2084 * Compare two conv_tp_entry_t's.
2086 static int cmp_conv_tp(const void *elt, const void *key, size_t size) {
2087 const conv_tp_entry_t *e1 = elt;
2088 const conv_tp_entry_t *e2 = key;
2090 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
2091 } /* static int cmp_conv_tp */
2096 void lower_dw_ops(const lwrdw_param_t *param)
2105 if (! param->enable)
2108 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
2110 assert(2 * get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->high_signed));
2111 assert(2 * get_mode_size_bits(param->low_unsigned) == get_mode_size_bits(param->high_unsigned));
2112 assert(get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->low_unsigned));
2114 /* create the necessary maps */
2116 prim_types = pmap_create();
2117 if (! intrinsic_fkt)
2118 intrinsic_fkt = new_set(cmp_op_mode, iro_MaxOpcode);
2120 conv_types = new_set(cmp_conv_tp, 16);
2122 lowered_type = pmap_create();
2124 /* create a primitive unsigned and signed type */
2126 tp_u = get_primitive_type(param->low_unsigned);
2128 tp_s = get_primitive_type(param->low_signed);
2130 /* create method types for the created binop calls */
2132 binop_tp_u = new_type_method(IDENT("binop_u_intrinsic"), 4, 2);
2133 set_method_param_type(binop_tp_u, 0, tp_u);
2134 set_method_param_type(binop_tp_u, 1, tp_u);
2135 set_method_param_type(binop_tp_u, 2, tp_u);
2136 set_method_param_type(binop_tp_u, 3, tp_u);
2137 set_method_res_type(binop_tp_u, 0, tp_u);
2138 set_method_res_type(binop_tp_u, 1, tp_u);
2141 binop_tp_s = new_type_method(IDENT("binop_s_intrinsic"), 4, 2);
2142 set_method_param_type(binop_tp_s, 0, tp_s);
2143 set_method_param_type(binop_tp_s, 1, tp_s);
2144 set_method_param_type(binop_tp_s, 2, tp_s);
2145 set_method_param_type(binop_tp_s, 3, tp_s);
2146 set_method_res_type(binop_tp_s, 0, tp_s);
2147 set_method_res_type(binop_tp_s, 1, tp_s);
2149 if (! shiftop_tp_u) {
2150 shiftop_tp_u = new_type_method(IDENT("shiftop_u_intrinsic"), 3, 2);
2151 set_method_param_type(shiftop_tp_u, 0, tp_u);
2152 set_method_param_type(shiftop_tp_u, 1, tp_u);
2153 set_method_param_type(shiftop_tp_u, 2, tp_u);
2154 set_method_res_type(shiftop_tp_u, 0, tp_u);
2155 set_method_res_type(shiftop_tp_u, 1, tp_u);
2157 if (! shiftop_tp_s) {
2158 shiftop_tp_s = new_type_method(IDENT("shiftop_s_intrinsic"), 3, 2);
2159 set_method_param_type(shiftop_tp_s, 0, tp_s);
2160 set_method_param_type(shiftop_tp_s, 1, tp_s);
2161 /* beware: shift count is always mode_Iu */
2162 set_method_param_type(shiftop_tp_s, 2, tp_u);
2163 set_method_res_type(shiftop_tp_s, 0, tp_s);
2164 set_method_res_type(shiftop_tp_s, 1, tp_s);
2167 unop_tp_u = new_type_method(IDENT("unop_u_intrinsic"), 2, 2);
2168 set_method_param_type(unop_tp_u, 0, tp_u);
2169 set_method_param_type(unop_tp_u, 1, tp_u);
2170 set_method_res_type(unop_tp_u, 0, tp_u);
2171 set_method_res_type(unop_tp_u, 1, tp_u);
2174 unop_tp_s = new_type_method(IDENT("unop_s_intrinsic"), 2, 2);
2175 set_method_param_type(unop_tp_s, 0, tp_s);
2176 set_method_param_type(unop_tp_s, 1, tp_s);
2177 set_method_res_type(unop_tp_s, 0, tp_s);
2178 set_method_res_type(unop_tp_s, 1, tp_s);
2181 lenv.tv_mode_bytes = new_tarval_from_long(get_mode_size_bytes(param->low_unsigned), mode_Iu);
2182 lenv.tv_mode_bits = new_tarval_from_long(get_mode_size_bits(param->low_unsigned), mode_Iu);
2183 lenv.waitq = new_pdeq();
2184 lenv.params = param;
2186 /* first clear the generic function pointer for all ops */
2187 clear_irp_opcodes_generic_func();
2189 #define LOWER2(op, fkt) op_##op->ops.generic = (op_func)fkt
2190 #define LOWER(op) LOWER2(op, lower_##op)
2191 #define LOWER_BIN(op) LOWER2(op, lower_Binop)
2192 #define LOWER_UN(op) LOWER2(op, lower_Unop)
2194 /* the table of all operations that must be lowered follows */
2229 /* transform all graphs */
2230 rem = current_ir_graph;
2231 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2232 ir_graph *irg = get_irp_irg(i);
2235 obstack_init(&lenv.obst);
2237 n_idx = get_irg_last_idx(irg);
2238 lenv.n_entries = n_idx;
2239 lenv.entries = xmalloc(n_idx * sizeof(lenv.entries[0]));
2240 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2242 /* first step: link all nodes and allocate data */
2244 lenv.proj_2_block = pmap_create();
2245 irg_walk_graph(irg, firm_clear_link, prepare_links, &lenv);
2247 if (lenv.flags & MUST_BE_LOWERED) {
2248 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2250 /* must do some work */
2251 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2253 /* last step: all waiting nodes */
2254 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2255 current_ir_graph = irg;
2256 while (! pdeq_empty(lenv.waitq)) {
2257 ir_node *node = pdeq_getl(lenv.waitq);
2259 lower_ops(node, &lenv);
2262 /* outs are invalid, we changed the graph */
2263 set_irg_outs_inconsistent(irg);
2265 if (lenv.flags & CF_CHANGED) {
2266 /* control flow changed, dominance info is invalid */
2267 set_irg_doms_inconsistent(irg);
2268 set_irg_extblk_inconsistent(irg);
2269 set_irg_loopinfo_inconsistent(irg);
2272 dump_ir_block_graph(irg, "-dw");
2274 pmap_destroy(lenv.proj_2_block);
2276 obstack_free(&lenv.obst, NULL);
2278 del_pdeq(lenv.waitq);
2279 current_ir_graph = rem;
2280 } /* lower_dw_ops */
2282 /* Default implementation. */
2283 entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2284 const ir_mode *imode, const ir_mode *omode,
2291 if (imode == omode) {
2292 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2294 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2295 get_mode_name(imode), get_mode_name(omode));
2297 id = new_id_from_str(buf);
2299 ent = new_entity(get_glob_type(), id, method);
2300 set_entity_ld_ident(ent, get_entity_ident(ent));
2301 set_entity_visibility(ent, visibility_external_allocated);
2303 } /* def_create_intrinsic_fkt */