5 * @brief Lower Double word operations, ie Mode L -> I.
29 #include "irgraph_t.h"
34 #include "dbginfo_t.h"
35 #include "iropt_dbg.h"
49 /** A map from mode to a primitive type. */
50 static pmap *prim_types;
52 /** A map from (op, imode, omode) to Intrinsic functions entities. */
53 static set *intrinsic_fkt;
55 /** A map from (imode, omode) to conv function types. */
56 static set *conv_types;
58 /** A map from a method type to its lowered type. */
59 static pmap *lowered_type;
61 /** The types for the binop and unop intrinsics. */
62 static ir_type *binop_tp_u, *binop_tp_s, *unop_tp_u, *unop_tp_s, *tp_s, *tp_u;
64 /** the debug handle */
65 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
68 * An entry in the (op, imode, omode) -> entity map.
70 typedef struct _op_mode_entry {
71 const ir_op *op; /**< the op */
72 const ir_mode *imode; /**< the input mode */
73 const ir_mode *omode; /**< the output mode */
74 entity *ent; /**< the associated entity of this (op, imode, omode) triple */
78 * An entry in the (imode, omode) -> tp map.
80 typedef struct _conv_tp_entry {
81 const ir_mode *imode; /**< the input mode */
82 const ir_mode *omode; /**< the output mode */
83 ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
87 * Every double word node will be replaced,
88 * we need some store to hold the replacement:
90 typedef struct _node_entry_t {
91 ir_node *low_word; /**< the low word */
92 ir_node *high_word; /**< the high word */
96 MUST_BE_LOWERED = 1, /**< graph must be lowered */
97 CF_CHANGED = 2, /**< control flow was changed */
101 * The lower environment.
103 typedef struct _lower_env_t {
104 node_entry_t **entries; /**< entries per node */
105 struct obstack obst; /**< an obstack holding the temporary data */
106 tarval *tv_mode_bytes; /**< a tarval containing the number of bits in the lowered modes */
107 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
108 pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
109 const lwrdw_param_t *params; /**< transformation parameter */
110 unsigned flags; /**< some flags */
111 int n_entries; /**< number of entries */
115 * Get a primitive mode for a mode.
117 static ir_type *get_primitive_type(ir_mode *mode) {
118 pmap_entry *entry = pmap_find(prim_types, mode);
125 snprintf(buf, sizeof(buf), "_prim_%s", get_mode_name(mode));
126 tp = new_type_primitive(new_id_from_str(buf), mode);
128 pmap_insert(prim_types, mode, tp);
133 * Create a method type for a Conv emulation from imode to omode.
135 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env) {
136 conv_tp_entry_t key, *entry;
143 entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
145 int n_param = 1, n_res = 1;
148 if (imode == env->params->high_signed || imode == env->params->high_unsigned)
150 if (omode == env->params->high_signed || omode == env->params->high_unsigned)
153 /* create a new one */
154 snprintf(buf, sizeof(buf), "LConv%s%s", get_mode_name(imode), get_mode_name(omode));
155 mtd = new_type_method(new_id_from_str(buf), n_param, n_res);
157 /* set param types and result types */
159 if (imode == env->params->high_signed) {
160 set_method_param_type(mtd, n_param++, tp_s);
161 set_method_param_type(mtd, n_param++, tp_s);
163 else if (imode == env->params->high_unsigned) {
164 set_method_param_type(mtd, n_param++, tp_u);
165 set_method_param_type(mtd, n_param++, tp_u);
168 ir_type *tp = get_primitive_type(imode);
169 set_method_param_type(mtd, n_param++, tp);
173 if (omode == env->params->high_signed) {
174 set_method_res_type(mtd, n_res++, tp_s);
175 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);
182 ir_type *tp = get_primitive_type(omode);
183 set_method_res_type(mtd, n_res++, tp);
194 * Add an additional control flow input to a block.
195 * Patch all Phi nodes. The new Phi inputs are copied from
196 * old input number nr.
198 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
200 int i, arity = get_irn_arity(block);
205 NEW_ARR_A(ir_node *, in, arity + 1);
206 for (i = 0; i < arity; ++i)
207 in[i] = get_irn_n(block, i);
210 set_irn_in(block, i + 1, in);
212 for (phi = get_irn_link(block); phi; phi = get_irn_link(phi)) {
213 for (i = 0; i < arity; ++i)
214 in[i] = get_irn_n(phi, i);
216 set_irn_in(phi, i + 1, in);
221 * Add an additional control flow input to a block.
222 * Patch all Phi nodes. The new Phi inputs are copied from
223 * old input from cf tmpl.
225 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
227 int i, arity = get_irn_arity(block);
230 for (i = 0; i < arity; ++i) {
231 if (get_irn_n(block, i) == tmpl) {
237 add_block_cf_input_nr(block, nr, cf);
241 * Return the "operational" mode of a Firm node.
243 static ir_mode *get_irn_op_mode(ir_node *node)
245 switch (get_irn_opcode(node)) {
247 return get_Load_mode(node);
250 return get_irn_mode(get_Store_value(node));
253 return get_irn_mode(get_DivMod_left(node));
256 return get_irn_mode(get_Div_left(node));
259 return get_irn_mode(get_Mod_left(node));
262 return get_irn_mode(get_Cmp_left(node));
265 return get_irn_mode(node);
270 * walker, prepare the node links
272 static void prepare_links(ir_node *node, void *env)
274 lower_env_t *lenv = env;
275 ir_mode *mode = get_irn_op_mode(node);
279 if (mode == lenv->params->high_signed ||
280 mode == lenv->params->high_unsigned) {
281 /* ok, found a node that will be lowered */
282 link = obstack_alloc(&lenv->obst, sizeof(*link));
284 memset(link, 0, sizeof(*link));
286 lenv->entries[get_irn_idx(node)] = link;
287 lenv->flags |= MUST_BE_LOWERED;
289 else if (get_irn_op(node) == op_Conv) {
290 /* Conv nodes have two modes */
291 ir_node *pred = get_Conv_op(node);
292 mode = get_irn_mode(pred);
294 if (mode == lenv->params->high_signed ||
295 mode == lenv->params->high_unsigned) {
296 /* must lower this node either */
297 link = obstack_alloc(&lenv->obst, sizeof(*link));
299 memset(link, 0, sizeof(*link));
301 lenv->entries[get_irn_idx(node)] = link;
302 lenv->flags |= MUST_BE_LOWERED;
308 /* link all Proj nodes to its predecessor:
309 Note that Tuple Proj's and its Projs are linked either. */
310 ir_node *pred = get_Proj_pred(node);
312 set_irn_link(node, get_irn_link(pred));
313 set_irn_link(pred, node);
315 else if (is_Phi(node)) {
316 /* link all Phi nodes to its block */
317 ir_node *block = get_nodes_block(node);
319 set_irn_link(node, get_irn_link(block));
320 set_irn_link(block, node);
322 else if (is_Block(node)) {
323 /* fill the Proj -> Block map */
324 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
325 ir_node *pred = get_Block_cfgpred(node, i);
328 pmap_insert(lenv->proj_2_block, pred, node);
334 * Translate a Constant: create two.
336 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env) {
337 tarval *tv, *tv_l, *tv_h;
339 dbg_info *dbg = get_irn_dbg_info(node);
340 ir_node *block = get_nodes_block(node);
343 tv = get_Const_tarval(node);
345 tv_l = tarval_convert_to(tv, mode);
346 low = new_rd_Const(dbg, current_ir_graph, block, mode, tv_l);
348 tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bytes), mode);
349 high = new_rd_Const(dbg, current_ir_graph, block, mode, tv_h);
351 idx = get_irn_idx(node);
352 assert(idx < env->n_entries);
353 env->entries[idx]->low_word = low;
354 env->entries[idx]->high_word = high;
358 * Translate a Load: create two.
360 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
361 ir_graph *irg = current_ir_graph;
362 ir_node *adr = get_Load_ptr(node);
363 ir_node *mem = get_Load_mem(node);
364 ir_node *low, *high, *proj;
366 ir_node *block = get_nodes_block(node);
369 if (env->params->little_endian) {
371 high = new_r_Add(irg, block, adr,
372 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
376 low = new_r_Add(irg, block, adr,
377 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
382 /* create two loads */
383 dbg = get_irn_dbg_info(node);
384 low = new_rd_Load(dbg, irg, block, mem, low, mode);
385 proj = new_r_Proj(irg, block, low, mode_M, pn_Load_M);
386 high = new_rd_Load(dbg, irg, block, proj, high, mode);
388 set_Load_volatility(low, get_Load_volatility(node));
389 set_Load_volatility(high, get_Load_volatility(node));
391 idx = get_irn_idx(node);
392 assert(idx < env->n_entries);
393 env->entries[idx]->low_word = low;
394 env->entries[idx]->high_word = high;
396 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
397 idx = get_irn_idx(proj);
399 switch (get_Proj_proj(proj)) {
400 case pn_Load_M: /* Memory result. */
401 /* put it to the second one */
402 set_Proj_pred(proj, high);
404 case pn_Load_X_except: /* Execution result if exception occurred. */
405 /* put it to the first one */
406 set_Proj_pred(proj, low);
408 case pn_Load_res: /* Result of load operation. */
409 assert(idx < env->n_entries);
410 env->entries[idx]->low_word = new_r_Proj(irg, block, low, mode, pn_Load_res);
411 env->entries[idx]->high_word = new_r_Proj(irg, block, high, mode, pn_Load_res);
414 assert(0 && "unexpected Proj number");
416 /* mark this proj: we have handled it already, otherwise we might fall into
418 mark_irn_visited(proj);
423 * Translate a Store: create two.
425 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
427 ir_node *block, *adr, *mem;
428 ir_node *low, *high, *irn, *proj;
433 irn = get_Store_value(node);
434 entry = env->entries[get_irn_idx(irn)];
437 if (! entry->low_word) {
438 /* not ready yet, wait */
439 pdeq_putr(env->waitq, node);
443 irg = current_ir_graph;
444 adr = get_Store_ptr(node);
445 mem = get_Store_mem(node);
446 block = get_nodes_block(node);
448 if (env->params->little_endian) {
450 high = new_r_Add(irg, block, adr,
451 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
455 low = new_r_Add(irg, block, adr,
456 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
461 /* create two Stores */
462 dbg = get_irn_dbg_info(node);
463 low = new_rd_Store(dbg, irg, block, mem, low, entry->low_word);
464 proj = new_r_Proj(irg, block, low, mode_M, pn_Store_M);
465 high = new_rd_Store(dbg, irg, block, proj, high, entry->high_word);
467 set_Store_volatility(low, get_Store_volatility(node));
468 set_Store_volatility(high, get_Store_volatility(node));
470 idx = get_irn_idx(node);
471 assert(idx < env->n_entries);
472 env->entries[idx]->low_word = low;
473 env->entries[idx]->high_word = high;
475 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
476 idx = get_irn_idx(proj);
478 switch (get_Proj_proj(proj)) {
479 case pn_Store_M: /* Memory result. */
480 /* put it to the second one */
481 set_Proj_pred(proj, high);
483 case pn_Store_X_except: /* Execution result if exception occurred. */
484 /* put it to the first one */
485 set_Proj_pred(proj, low);
488 assert(0 && "unexpected Proj number");
490 /* mark this proj: we have handled it already, otherwise we might fall into
492 mark_irn_visited(proj);
497 * Return a node containing the address of the intrinsic emulation function.
499 * @param method the method type of the emulation function
500 * @param op the emulated ir_op
501 * @param imode the input mode of the emulated opcode
502 * @param omode the output mode of the emulated opcode
503 * @param block where the new mode is created
504 * @param env the lower environment
506 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
507 ir_mode *imode, ir_mode *omode,
508 ir_node *block, lower_env_t *env) {
511 op_mode_entry_t key, *entry;
518 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
519 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
521 /* create a new one */
522 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
524 assert(ent && "Intrinsic creator must return an entity");
531 return new_r_SymConst(current_ir_graph, block, sym, symconst_addr_ent);
537 * Create an intrinsic Call.
539 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env) {
540 ir_node *block, *irn, *call, *proj;
548 irn = get_Div_left(node);
549 entry = env->entries[get_irn_idx(irn)];
552 if (! entry->low_word) {
553 /* not ready yet, wait */
554 pdeq_putr(env->waitq, node);
558 in[0] = entry->low_word;
559 in[1] = entry->high_word;
561 irn = get_Div_right(node);
562 entry = env->entries[get_irn_idx(irn)];
565 if (! entry->low_word) {
566 /* not ready yet, wait */
567 pdeq_putr(env->waitq, node);
571 in[2] = entry->low_word;
572 in[3] = entry->high_word;
574 dbg = get_irn_dbg_info(node);
575 block = get_nodes_block(node);
577 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
578 opmode = get_irn_op_mode(node);
579 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
580 call = new_rd_Call(dbg, current_ir_graph, block, get_Div_mem(node),
582 set_irn_pinned(call, get_irn_pinned(node));
583 irn = new_r_Proj(current_ir_graph, block, call, mode_T, pn_Call_T_result);
585 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
586 switch (get_Proj_proj(proj)) {
587 case pn_Div_M: /* Memory result. */
588 /* reroute to the call */
589 set_Proj_pred(proj, call);
590 set_Proj_proj(proj, pn_Call_M_except);
592 case pn_Div_X_except: /* Execution result if exception occurred. */
593 /* reroute to the call */
594 set_Proj_pred(proj, call);
595 set_Proj_proj(proj, pn_Call_X_except);
597 case pn_Div_res: /* Result of computation. */
598 idx = get_irn_idx(proj);
599 assert(idx < env->n_entries);
600 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
601 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
604 assert(0 && "unexpected Proj number");
606 /* mark this proj: we have handled it already, otherwise we might fall into
608 mark_irn_visited(proj);
615 * Create an intrinsic Call.
617 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env) {
618 ir_node *block, *proj, *irn, *call;
626 irn = get_Mod_left(node);
627 entry = env->entries[get_irn_idx(irn)];
630 if (! entry->low_word) {
631 /* not ready yet, wait */
632 pdeq_putr(env->waitq, node);
636 in[0] = entry->low_word;
637 in[1] = entry->high_word;
639 irn = get_Mod_right(node);
640 entry = env->entries[get_irn_idx(irn)];
643 if (! entry->low_word) {
644 /* not ready yet, wait */
645 pdeq_putr(env->waitq, node);
649 in[2] = entry->low_word;
650 in[3] = entry->high_word;
652 dbg = get_irn_dbg_info(node);
653 block = get_nodes_block(node);
655 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
656 opmode = get_irn_op_mode(node);
657 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
658 call = new_rd_Call(dbg, current_ir_graph, block, get_Mod_mem(node),
660 set_irn_pinned(call, get_irn_pinned(node));
661 irn = new_r_Proj(current_ir_graph, block, call, mode_T, pn_Call_T_result);
663 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
664 switch (get_Proj_proj(proj)) {
665 case pn_Mod_M: /* Memory result. */
666 /* reroute to the call */
667 set_Proj_pred(proj, call);
668 set_Proj_proj(proj, pn_Call_M_except);
670 case pn_Mod_X_except: /* Execution result if exception occurred. */
671 /* reroute to the call */
672 set_Proj_pred(proj, call);
673 set_Proj_proj(proj, pn_Call_X_except);
675 case pn_Mod_res: /* Result of computation. */
676 idx = get_irn_idx(proj);
677 assert(idx < env->n_entries);
678 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
679 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
682 assert(0 && "unexpected Proj number");
684 /* mark this proj: we have handled it already, otherwise we might fall into
686 mark_irn_visited(proj);
691 * Translate a DivMod.
693 * Create two intrinsic Calls.
695 static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env) {
696 ir_node *block, *proj, *irn, *mem, *callDiv, *callMod, *resDiv, *resMod;
705 /* check if both results are needed */
706 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
707 switch (get_Proj_proj(proj)) {
708 case pn_DivMod_res_div: flags |= 1; break;
709 case pn_DivMod_res_mod: flags |= 2; break;
714 irn = get_DivMod_left(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[0] = entry->low_word;
725 in[1] = entry->high_word;
727 irn = get_DivMod_right(node);
728 entry = env->entries[get_irn_idx(irn)];
731 if (! entry->low_word) {
732 /* not ready yet, wait */
733 pdeq_putr(env->waitq, node);
737 in[2] = entry->low_word;
738 in[3] = entry->high_word;
740 dbg = get_irn_dbg_info(node);
741 block = get_nodes_block(node);
743 mem = get_DivMod_mem(node);
745 callDiv = callMod = NULL;
746 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
748 opmode = get_irn_op_mode(node);
749 irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, block, env);
750 callDiv = new_rd_Call(dbg, current_ir_graph, block, mem,
752 set_irn_pinned(callDiv, get_irn_pinned(node));
753 resDiv = new_r_Proj(current_ir_graph, block, callDiv, mode_T, pn_Call_T_result);
757 mem = new_r_Proj(current_ir_graph, block, callDiv, mode_M, pn_Call_M);
758 opmode = get_irn_op_mode(node);
759 irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, block, env);
760 callMod = new_rd_Call(dbg, current_ir_graph, block, mem,
762 set_irn_pinned(callMod, get_irn_pinned(node));
763 resMod = new_r_Proj(current_ir_graph, block, callMod, mode_T, pn_Call_T_result);
766 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
767 switch (get_Proj_proj(proj)) {
768 case pn_DivMod_M: /* Memory result. */
769 /* reroute to the first call */
770 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
771 set_Proj_proj(proj, pn_Call_M_except);
773 case pn_DivMod_X_except: /* Execution result if exception occurred. */
774 /* reroute to the first call */
775 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
776 set_Proj_proj(proj, pn_Call_X_except);
778 case pn_DivMod_res_div: /* Result of Div. */
779 idx = get_irn_idx(proj);
780 assert(idx < env->n_entries);
781 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, resDiv, mode, 0);
782 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, resDiv, mode, 1);
784 case pn_DivMod_res_mod: /* Result of Mod. */
785 idx = get_irn_idx(proj);
786 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, resMod, mode, 0);
787 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, resMod, mode, 1);
790 assert(0 && "unexpected Proj number");
792 /* mark this proj: we have handled it already, otherwise we might fall into
794 mark_irn_visited(proj);
801 * Create an intrinsic Call.
803 static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env) {
804 ir_node *block, *irn;
811 irn = get_binop_left(node);
812 entry = env->entries[get_irn_idx(irn)];
815 if (! entry->low_word) {
816 /* not ready yet, wait */
817 pdeq_putr(env->waitq, node);
821 in[0] = entry->low_word;
822 in[1] = entry->high_word;
824 irn = get_binop_right(node);
825 entry = env->entries[get_irn_idx(irn)];
828 if (! entry->low_word) {
829 /* not ready yet, wait */
830 pdeq_putr(env->waitq, node);
834 in[2] = entry->low_word;
835 in[3] = entry->high_word;
837 dbg = get_irn_dbg_info(node);
838 block = get_nodes_block(node);
840 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
841 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
842 irn = new_rd_Call(dbg, current_ir_graph, block, get_irg_no_mem(current_ir_graph),
844 set_irn_pinned(irn, get_irn_pinned(node));
845 irn = new_r_Proj(current_ir_graph, block, irn, mode_T, pn_Call_T_result);
847 idx = get_irn_idx(node);
848 assert(idx < env->n_entries);
849 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
850 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
856 * Create an intrinsic Call.
858 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
859 ir_node *block, *irn;
866 irn = get_unop_op(node);
867 entry = env->entries[get_irn_idx(irn)];
870 if (! entry->low_word) {
871 /* not ready yet, wait */
872 pdeq_putr(env->waitq, node);
876 in[0] = entry->low_word;
877 in[1] = entry->high_word;
879 dbg = get_irn_dbg_info(node);
880 block = get_nodes_block(node);
882 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
883 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
884 irn = new_rd_Call(dbg, current_ir_graph, block, get_irg_no_mem(current_ir_graph),
886 set_irn_pinned(irn, get_irn_pinned(node));
887 irn = new_r_Proj(current_ir_graph, 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(current_ir_graph, block, irn, mode, 0);
892 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
896 * Translate a logical Binop.
898 * Create two logical Binops.
900 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
901 ir_node *(*constr_rd)(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
902 ir_node *block, *irn;
903 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
908 irn = get_binop_left(node);
909 entry = env->entries[get_irn_idx(irn)];
912 if (! entry->low_word) {
913 /* not ready yet, wait */
914 pdeq_putr(env->waitq, node);
918 lop_l = entry->low_word;
919 lop_h = entry->high_word;
921 irn = get_binop_right(node);
922 entry = env->entries[get_irn_idx(irn)];
925 if (! entry->low_word) {
926 /* not ready yet, wait */
927 pdeq_putr(env->waitq, node);
931 rop_l = entry->low_word;
932 rop_h = entry->high_word;
934 dbg = get_irn_dbg_info(node);
935 block = get_nodes_block(node);
937 idx = get_irn_idx(node);
938 assert(idx < env->n_entries);
939 env->entries[idx]->low_word = constr_rd(dbg, current_ir_graph, block, lop_l, rop_l, mode);
940 env->entries[idx]->high_word = constr_rd(dbg, current_ir_graph, block, lop_h, rop_h, mode);
943 /** create a logical operation tranformation */
944 #define lower_logical(op) \
945 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
946 lower_Binop_logical(node, mode, env, new_rd_##op); \
956 * Create two logical Nots.
958 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env) {
959 ir_node *block, *irn;
960 ir_node *op_l, *op_h;
965 irn = get_Not_op(node);
966 entry = env->entries[get_irn_idx(irn)];
969 if (! entry->low_word) {
970 /* not ready yet, wait */
971 pdeq_putr(env->waitq, node);
975 op_l = entry->low_word;
976 op_h = entry->high_word;
978 dbg = get_irn_dbg_info(node);
979 block = get_nodes_block(node);
981 idx = get_irn_idx(node);
982 assert(idx < env->n_entries);
983 env->entries[idx]->low_word = new_rd_Not(dbg, current_ir_graph, block, op_l, mode);
984 env->entries[idx]->high_word = new_rd_Not(dbg, current_ir_graph, block, op_h, mode);
990 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env) {
991 ir_node *cmp, *left, *right, *block;
992 ir_node *sel = get_Cond_selector(node);
993 ir_mode *m = get_irn_mode(sel);
997 node_entry_t *lentry, *rentry;
998 ir_node *proj, *projT = NULL, *projF = NULL;
999 ir_node *new_bl, *cmpH, *cmpL, *irn;
1000 ir_node *projHF, *projHT;
1006 cmp = get_Proj_pred(sel);
1007 left = get_Cmp_left(cmp);
1008 idx = get_irn_idx(left);
1009 lentry = env->entries[idx];
1015 right = get_Cmp_right(cmp);
1016 idx = get_irn_idx(right);
1017 rentry = env->entries[idx];
1020 if (! lentry->low_word || !rentry->low_word) {
1022 pdeq_putr(env->waitq, node);
1026 /* all right, build the code */
1027 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1028 long proj_nr = get_Proj_proj(proj);
1030 if (proj_nr == pn_Cond_true) {
1031 assert(projT == NULL && "more than one Proj(true)");
1035 assert(proj_nr == pn_Cond_false);
1036 assert(projF == NULL && "more than one Proj(false)");
1039 mark_irn_visited(proj);
1041 assert(projT && projF);
1043 /* create a new high compare */
1044 block = get_nodes_block(cmp);
1045 dbg = get_irn_dbg_info(cmp);
1046 irg = current_ir_graph;
1048 cmpH = new_rd_Cmp(dbg, irg, block, lentry->high_word, rentry->high_word);
1050 pnc = get_Proj_proj(sel);
1051 if (pnc == pn_Cmp_Eq) {
1052 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1053 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1056 dst_blk = entry->value;
1058 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Eq);
1059 dbg = get_irn_dbg_info(node);
1060 irn = new_rd_Cond(dbg, irg, block, irn);
1062 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1063 mark_irn_visited(projHF);
1064 exchange(projF, projHF);
1066 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1067 mark_irn_visited(projHT);
1069 new_bl = new_r_Block(irg, 1, &projHT);
1071 dbg = get_irn_dbg_info(cmp);
1072 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1073 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Eq);
1074 dbg = get_irn_dbg_info(node);
1075 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1077 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1078 mark_irn_visited(proj);
1079 add_block_cf_input(dst_blk, projHF, proj);
1081 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1082 mark_irn_visited(proj);
1083 exchange(projT, proj);
1085 else if (pnc == pn_Cmp_Lg) {
1086 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1087 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1090 dst_blk = entry->value;
1092 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Lg);
1093 dbg = get_irn_dbg_info(node);
1094 irn = new_rd_Cond(dbg, irg, block, irn);
1096 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1097 mark_irn_visited(projHT);
1098 exchange(projT, projHT);
1100 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1101 mark_irn_visited(projHF);
1103 new_bl = new_r_Block(irg, 1, &projHF);
1105 dbg = get_irn_dbg_info(cmp);
1106 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1107 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Lg);
1108 dbg = get_irn_dbg_info(node);
1109 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1111 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1112 mark_irn_visited(proj);
1113 add_block_cf_input(dst_blk, projHT, proj);
1115 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1116 mark_irn_visited(proj);
1117 exchange(projF, proj);
1120 /* a rel b <==> a_h rel b_h || (a_h == b_h && a_l rel b_l) */
1121 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1124 entry = pmap_find(env->proj_2_block, projT);
1126 dstT = entry->value;
1128 entry = pmap_find(env->proj_2_block, projF);
1130 dstF = entry->value;
1132 irn = new_r_Proj(irg, block, cmpH, mode_b, pnc);
1133 dbg = get_irn_dbg_info(node);
1134 irn = new_rd_Cond(dbg, irg, block, irn);
1136 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1137 mark_irn_visited(projHT);
1138 exchange(projT, projHT);
1141 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1142 mark_irn_visited(projHF);
1144 newbl_eq = new_r_Block(irg, 1, &projHF);
1146 irn = new_r_Proj(irg, newbl_eq, cmpH, mode_b, pn_Cmp_Eq);
1147 irn = new_rd_Cond(dbg, irg, newbl_eq, irn);
1149 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_false);
1150 mark_irn_visited(proj);
1151 exchange(projF, proj);
1154 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_true);
1155 mark_irn_visited(proj);
1157 newbl_l = new_r_Block(irg, 1, &proj);
1159 dbg = get_irn_dbg_info(cmp);
1160 cmpL = new_rd_Cmp(dbg, irg, newbl_l, lentry->low_word, rentry->low_word);
1161 irn = new_r_Proj(irg, newbl_l, cmpL, mode_b, pnc);
1162 dbg = get_irn_dbg_info(node);
1163 irn = new_rd_Cond(dbg, irg, newbl_l, irn);
1165 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_true);
1166 mark_irn_visited(proj);
1167 add_block_cf_input(dstT, projT, proj);
1169 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_false);
1170 mark_irn_visited(proj);
1171 add_block_cf_input(dstF, projF, proj);
1174 /* we have changed the control flow */
1175 env->flags |= CF_CHANGED;
1178 idx = get_irn_idx(sel);
1180 if (env->entries[idx]) {
1182 Bad, a jump-table with double-word index.
1183 This should not happen, but if it does we handle
1184 it like a Conv were between (in other words, ignore
1188 if (! env->entries[idx]->low_word) {
1189 /* not ready yet, wait */
1190 pdeq_putr(env->waitq, node);
1193 set_Cond_selector(node, env->entries[idx]->low_word);
1199 * Translate a Conv to higher_signed
1201 static void lower_Conv_to_Ls(ir_node *node, lower_env_t *env) {
1202 ir_node *op = get_Conv_op(node);
1203 ir_mode *imode = get_irn_mode(op);
1204 ir_mode *dst_mode = env->params->low_signed;
1205 int idx = get_irn_idx(node);
1206 ir_graph *irg = current_ir_graph;
1207 ir_node *block = get_nodes_block(node);
1208 dbg_info *dbg = get_irn_dbg_info(node);
1210 assert(idx < env->n_entries);
1212 if (mode_is_int(imode) || mode_is_reference(imode)) {
1213 /* simple case: create a high word */
1214 if (imode != dst_mode)
1215 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1217 env->entries[idx]->low_word = op;
1218 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op,
1219 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode) - 1), dst_mode);
1222 ir_node *irn, *call;
1223 ir_mode *omode = env->params->high_signed;
1224 ir_type *mtp = get_conv_type(imode, omode, env);
1226 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1227 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1228 set_irn_pinned(call, get_irn_pinned(node));
1229 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1231 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1232 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1237 * Translate a Conv to higher_unsigned
1239 static void lower_Conv_to_Lu(ir_node *node, lower_env_t *env) {
1240 ir_node *op = get_Conv_op(node);
1241 ir_mode *imode = get_irn_mode(op);
1242 ir_mode *dst_mode = env->params->low_unsigned;
1243 int idx = get_irn_idx(node);
1244 ir_graph *irg = current_ir_graph;
1245 ir_node *block = get_nodes_block(node);
1246 dbg_info *dbg = get_irn_dbg_info(node);
1248 assert(idx < env->n_entries);
1250 if (mode_is_int(imode) || mode_is_reference(imode)) {
1251 /* simple case: create a high word */
1252 if (imode != dst_mode)
1253 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1255 env->entries[idx]->low_word = op;
1256 env->entries[idx]->high_word = new_Const(dst_mode, get_mode_null(dst_mode));
1259 ir_node *irn, *call;
1260 ir_mode *omode = env->params->high_unsigned;
1261 ir_type *mtp = get_conv_type(imode, omode, env);
1263 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1264 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1265 set_irn_pinned(call, get_irn_pinned(node));
1266 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1268 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1269 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1274 * Translate a Conv from higher_signed
1276 static void lower_Conv_from_Ls(ir_node *node, lower_env_t *env) {
1277 ir_node *op = get_Conv_op(node);
1278 ir_mode *omode = get_irn_mode(node);
1279 ir_node *block = get_nodes_block(node);
1280 dbg_info *dbg = get_irn_dbg_info(node);
1281 int idx = get_irn_idx(op);
1282 ir_graph *irg = current_ir_graph;
1284 assert(idx < env->n_entries);
1286 if (mode_is_int(omode) || mode_is_reference(omode)) {
1287 op = env->entries[idx]->low_word;
1289 /* simple case: create a high word */
1290 if (omode != env->params->low_signed)
1291 op = new_rd_Conv(dbg, irg, block, op, omode);
1293 set_Conv_op(node, op);
1296 ir_node *irn, *call, *in[2];
1297 ir_mode *imode = env->params->high_signed;
1298 ir_type *mtp = get_conv_type(imode, omode, env);
1300 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1301 in[0] = env->entries[idx]->low_word;
1302 in[1] = env->entries[idx]->high_word;
1304 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1305 set_irn_pinned(call, get_irn_pinned(node));
1306 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1308 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1313 * Translate a Conv from higher_unsigned
1315 static void lower_Conv_from_Lu(ir_node *node, lower_env_t *env) {
1316 ir_node *op = get_Conv_op(node);
1317 ir_mode *omode = get_irn_mode(node);
1318 ir_node *block = get_nodes_block(node);
1319 dbg_info *dbg = get_irn_dbg_info(node);
1320 int idx = get_irn_idx(op);
1321 ir_graph *irg = current_ir_graph;
1323 assert(idx < env->n_entries);
1325 if (mode_is_int(omode) || mode_is_reference(omode)) {
1326 op = env->entries[idx]->low_word;
1328 /* simple case: create a high word */
1329 if (omode != env->params->low_unsigned)
1330 op = new_rd_Conv(dbg, irg, block, op, omode);
1332 set_Conv_op(node, op);
1335 ir_node *irn, *call, *in[2];
1336 ir_mode *imode = env->params->high_unsigned;
1337 ir_type *mtp = get_conv_type(imode, omode, env);
1339 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1340 in[0] = env->entries[idx]->low_word;
1341 in[1] = env->entries[idx]->high_word;
1343 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1344 set_irn_pinned(call, get_irn_pinned(node));
1345 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1347 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1354 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env) {
1355 mode = get_irn_mode(node);
1357 if (mode == env->params->high_signed)
1358 lower_Conv_to_Ls(node, env);
1359 else if (mode == env->params->high_unsigned)
1360 lower_Conv_to_Lu(node, env);
1362 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1364 if (mode == env->params->high_signed)
1365 lower_Conv_from_Ls(node, env);
1367 assert(mode == env->params->high_unsigned);
1368 lower_Conv_from_Lu(node, env);
1374 * Lower the method type.
1376 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env) {
1381 if (is_lowered_type(mtp))
1384 entry = pmap_find(lowered_type, mtp);
1386 int i, n, r, n_param, n_res;
1388 /* count new number of params */
1389 n_param = n = get_method_n_params(mtp);
1390 for (i = n_param - 1; i >= 0; --i) {
1391 ir_type *tp = get_method_param_type(mtp, i);
1393 if (is_Primitive_type(tp)) {
1394 ir_mode *mode = get_type_mode(tp);
1396 if (mode == env->params->high_signed ||
1397 mode == env->params->high_unsigned)
1402 /* count new number of results */
1403 n_res = r = get_method_n_ress(mtp);
1404 for (i = n_res - 1; i >= 0; --i) {
1405 ir_type *tp = get_method_res_type(mtp, i);
1407 if (is_Primitive_type(tp)) {
1408 ir_mode *mode = get_type_mode(tp);
1410 if (mode == env->params->high_signed ||
1411 mode == env->params->high_unsigned)
1416 id = mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
1417 res = new_type_method(id, n_param, n_res);
1419 /* set param types and result types */
1420 for (i = n_param = 0; i < n; ++i) {
1421 ir_type *tp = get_method_param_type(mtp, i);
1423 if (is_Primitive_type(tp)) {
1424 ir_mode *mode = get_type_mode(tp);
1426 if (mode == env->params->high_signed) {
1427 set_method_param_type(res, n_param++, tp_s);
1428 set_method_param_type(res, n_param++, tp_s);
1430 else if (mode == env->params->high_unsigned) {
1431 set_method_param_type(res, n_param++, tp_u);
1432 set_method_param_type(res, n_param++, tp_u);
1435 set_method_param_type(res, n_param++, tp);
1438 for (i = n_res = 0; i < r; ++i) {
1439 ir_type *tp = get_method_res_type(mtp, i);
1441 if (is_Primitive_type(tp)) {
1442 ir_mode *mode = get_type_mode(tp);
1444 if (mode == env->params->high_signed) {
1445 set_method_res_type(res, n_res++, tp_s);
1446 set_method_res_type(res, n_res++, tp_s);
1448 else if (mode == env->params->high_unsigned) {
1449 set_method_res_type(res, n_res++, tp_u);
1450 set_method_res_type(res, n_res++, tp_u);
1453 set_method_res_type(res, n_res++, tp);
1456 set_lowered_type(mtp, res);
1457 pmap_insert(lowered_type, mtp, res);
1465 * Translate a Return.
1467 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env) {
1468 ir_graph *irg = current_ir_graph;
1469 entity *ent = get_irg_entity(irg);
1470 ir_type *mtp = get_entity_type(ent);
1475 /* check if this return must be lowered */
1476 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1477 ir_node *pred = get_Return_res(node, i);
1478 ir_mode *mode = get_irn_op_mode(pred);
1480 if (mode == env->params->high_signed ||
1481 mode == env->params->high_unsigned) {
1482 idx = get_irn_idx(pred);
1483 if (! env->entries[idx]->low_word) {
1484 /* not ready yet, wait */
1485 pdeq_putr(env->waitq, node);
1494 ent = get_irg_entity(irg);
1495 mtp = get_entity_type(ent);
1497 mtp = lower_mtp(mtp, env);
1498 set_entity_type(ent, mtp);
1500 /* create a new in array */
1501 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1502 in[0] = get_Return_mem(node);
1504 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1505 ir_node *pred = get_Return_res(node, i);
1507 idx = get_irn_idx(pred);
1508 assert(idx < env->n_entries);
1510 if (env->entries[idx]) {
1511 in[++j] = env->entries[idx]->low_word;
1512 in[++j] = env->entries[idx]->high_word;
1518 set_irn_in(node, j+1, in);
1522 * Translate the parameters.
1524 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env) {
1525 ir_graph *irg = current_ir_graph;
1526 entity *ent = get_irg_entity(irg);
1527 ir_type *tp = get_entity_type(ent);
1530 int i, j, n_params, rem;
1531 ir_node *proj, *args;
1533 if (is_lowered_type(tp))
1534 mtp = get_associated_type(tp);
1538 assert(! is_lowered_type(mtp));
1540 n_params = get_method_n_params(mtp);
1544 NEW_ARR_A(long, new_projs, n_params);
1546 /* first check if we have parameters that must be fixed */
1547 for (i = j = 0; i < n_params; ++i, ++j) {
1548 ir_type *tp = get_method_param_type(mtp, i);
1551 if (is_Primitive_type(tp)) {
1552 ir_mode *mode = get_type_mode(tp);
1554 if (mode == env->params->high_signed ||
1555 mode == env->params->high_unsigned)
1562 mtp = lower_mtp(mtp, env);
1563 set_entity_type(ent, mtp);
1565 /* switch off optimization for new Proj nodes or they might be CSE'ed
1566 with not patched one's */
1567 rem = get_optimize();
1570 /* ok, fix all Proj's and create new ones */
1571 args = get_irg_args(irg);
1572 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1573 ir_node *pred = get_Proj_pred(proj);
1579 /* do not visit this node again */
1580 mark_irn_visited(proj);
1585 proj_nr = get_Proj_proj(proj);
1586 set_Proj_proj(proj, new_projs[proj_nr]);
1588 idx = get_irn_idx(proj);
1589 if (env->entries[idx]) {
1590 mode = get_irn_mode(proj);
1592 if (mode == env->params->high_signed)
1593 mode = env->params->low_signed;
1595 mode = env->params->high_signed;
1597 dbg = get_irn_dbg_info(proj);
1598 env->entries[idx]->low_word =
1599 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr]);
1600 env->entries[idx]->high_word =
1601 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr] + 1);
1610 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env) {
1611 ir_graph *irg = current_ir_graph;
1612 ir_type *tp = get_Call_type(node);
1614 ir_node **in, *proj, *results;
1615 int n_params, n_res, need_lower = 0;
1617 long *res_numbers = NULL;
1619 if (is_lowered_type(tp))
1620 call_tp = get_associated_type(tp);
1624 assert(! is_lowered_type(call_tp));
1626 n_params = get_method_n_params(call_tp);
1627 for (i = 0; i < n_params; ++i) {
1628 ir_type *tp = get_method_param_type(call_tp, i);
1630 if (is_Primitive_type(tp)) {
1631 ir_mode *mode = get_type_mode(tp);
1633 if (mode == env->params->high_signed ||
1634 mode == env->params->high_unsigned) {
1640 n_res = get_method_n_ress(call_tp);
1642 NEW_ARR_A(long, res_numbers, n_res);
1644 for (i = j = 0; i < n_res; ++i, ++j) {
1645 ir_type *tp = get_method_res_type(call_tp, i);
1648 if (is_Primitive_type(tp)) {
1649 ir_mode *mode = get_type_mode(tp);
1651 if (mode == env->params->high_signed ||
1652 mode == env->params->high_unsigned) {
1663 /* let's lower it */
1664 call_tp = lower_mtp(call_tp, env);
1665 set_Call_type(node, call_tp);
1667 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1669 in[0] = get_Call_mem(node);
1670 in[1] = get_Call_ptr(node);
1672 for (j = 2, i = 0; i < n_params; ++i) {
1673 ir_node *pred = get_Call_param(node, i);
1674 int idx = get_irn_idx(pred);
1676 if (env->entries[idx]) {
1677 if (! env->entries[idx]->low_word) {
1678 /* not ready yet, wait */
1679 pdeq_putr(env->waitq, node);
1682 in[j++] = env->entries[idx]->low_word;
1683 in[j++] = env->entries[idx]->high_word;
1689 set_irn_in(node, j, in);
1691 /* fix the results */
1693 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1694 long proj_nr = get_Proj_proj(proj);
1696 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1697 /* found the result proj */
1703 if (results) { /* there are results */
1704 int rem = get_optimize();
1706 /* switch off optimization for new Proj nodes or they might be CSE'ed
1707 with not patched one's */
1709 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1710 if (get_Proj_pred(proj) == results) {
1711 long proj_nr = get_Proj_proj(proj);
1714 /* found a result */
1715 set_Proj_proj(proj, res_numbers[proj_nr]);
1716 idx = get_irn_idx(proj);
1717 if (env->entries[idx]) {
1718 ir_mode *mode = get_irn_mode(proj);
1721 if (mode == env->params->high_signed)
1722 mode = env->params->low_signed;
1724 mode = env->params->low_unsigned;
1726 dbg = get_irn_dbg_info(proj);
1727 env->entries[idx]->low_word =
1728 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr]);
1729 env->entries[idx]->high_word =
1730 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr] + 1);
1732 mark_irn_visited(proj);
1740 * Translate an Unknown into two.
1742 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env) {
1743 int idx = get_irn_idx(node);
1745 env->entries[idx]->low_word =
1746 env->entries[idx]->high_word = new_r_Unknown(current_ir_graph, mode);
1752 * First step: just create two templates
1754 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env) {
1755 ir_node *block, *unk;
1756 ir_node **inl, **inh;
1758 int idx, i, arity = get_Phi_n_preds(phi);
1761 idx = get_irn_idx(phi);
1762 if (env->entries[idx]->low_word) {
1763 /* Phi nodes already build, check for inputs */
1764 ir_node *phil = env->entries[idx]->low_word;
1765 ir_node *phih = env->entries[idx]->high_word;
1767 for (i = 0; i < arity; ++i) {
1768 ir_node *pred = get_Phi_pred(phi, i);
1769 int idx = get_irn_idx(pred);
1771 if (env->entries[idx]->low_word) {
1772 set_Phi_pred(phil, i, env->entries[idx]->low_word);
1773 set_Phi_pred(phil, i, env->entries[idx]->high_word);
1776 /* still not ready */
1777 pdeq_putr(env->waitq, phi);
1783 /* first create a new in array */
1784 NEW_ARR_A(ir_node *, inl, arity);
1785 NEW_ARR_A(ir_node *, inh, arity);
1786 unk = new_r_Unknown(current_ir_graph, mode);
1788 for (i = 0; i < arity; ++i) {
1789 ir_node *pred = get_Phi_pred(phi, i);
1790 int idx = get_irn_idx(pred);
1792 if (env->entries[idx]->low_word) {
1793 inl[i] = env->entries[idx]->low_word;
1794 inh[i] = env->entries[idx]->high_word;
1803 dbg = get_irn_dbg_info(phi);
1804 block = get_nodes_block(phi);
1806 idx = get_irn_idx(phi);
1807 assert(idx < env->n_entries);
1808 env->entries[idx]->low_word = new_rd_Phi(dbg, current_ir_graph, block, arity, inl, mode);
1809 env->entries[idx]->high_word = new_rd_Phi(dbg, current_ir_graph, block, arity, inh, mode);
1812 /* not yet finished */
1813 pdeq_putr(env->waitq, phi);
1818 * check for opcodes that must always be lowered.
1820 static int always_lower(opcode code) {
1832 /** The type of a lower function. */
1833 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
1838 static void lower_ops(ir_node *node, void *env)
1840 lower_env_t *lenv = env;
1841 node_entry_t *entry;
1842 int idx = get_irn_idx(node);
1844 entry = lenv->entries[idx];
1845 if (entry || always_lower(get_irn_opcode(node))) {
1846 ir_op *op = get_irn_op(node);
1847 lower_func func = (lower_func)op->ops.generic;
1850 ir_mode *mode = get_irn_op_mode(node);
1852 if (mode == lenv->params->high_signed)
1853 mode = lenv->params->low_signed;
1855 mode = lenv->params->low_unsigned;
1857 DB((dbg, LEVEL_1, " %+F\n", node));
1858 func(node, mode, lenv);
1863 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
1866 * Compare two op_mode_entry_t's.
1868 static int cmp_op_mode(const void *elt, const void *key, size_t size) {
1869 const op_mode_entry_t *e1 = elt;
1870 const op_mode_entry_t *e2 = key;
1872 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
1876 * Compare two conv_tp_entry_t's.
1878 static int cmp_conv_tp(const void *elt, const void *key, size_t size) {
1879 const conv_tp_entry_t *e1 = elt;
1880 const conv_tp_entry_t *e2 = key;
1882 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
1888 void lower_dw_ops(const lwrdw_param_t *param)
1896 if (! param->enable)
1899 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
1900 firm_dbg_set_mask(dbg, SET_LEVEL_2);
1902 assert(2 * get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->high_signed));
1903 assert(2 * get_mode_size_bits(param->low_unsigned) == get_mode_size_bits(param->high_unsigned));
1904 assert(get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->low_unsigned));
1907 prim_types = pmap_create();
1908 if (! intrinsic_fkt)
1909 intrinsic_fkt = new_set(cmp_op_mode, iro_MaxOpcode);
1911 conv_types = new_set(cmp_conv_tp, 16);
1913 lowered_type = pmap_create();
1916 tp_u = get_primitive_type(param->low_unsigned);
1918 tp_s = get_primitive_type(param->low_signed);
1922 binop_tp_u = new_type_method(IDENT("binop_u_intrinsic"), 4, 2);
1924 set_method_param_type(binop_tp_u, 0, tp_u);
1925 set_method_param_type(binop_tp_u, 1, tp_u);
1926 set_method_param_type(binop_tp_u, 2, tp_u);
1927 set_method_param_type(binop_tp_u, 3, tp_u);
1928 set_method_res_type(binop_tp_u, 0, tp_u);
1929 set_method_res_type(binop_tp_u, 1, tp_u);
1932 binop_tp_s = new_type_method(IDENT("binop_s_intrinsic"), 4, 2);
1933 set_method_param_type(binop_tp_s, 0, tp_s);
1934 set_method_param_type(binop_tp_s, 1, tp_s);
1935 set_method_param_type(binop_tp_s, 2, tp_s);
1936 set_method_param_type(binop_tp_s, 3, tp_s);
1937 set_method_res_type(binop_tp_s, 0, tp_s);
1938 set_method_res_type(binop_tp_s, 1, tp_s);
1941 unop_tp_u = new_type_method(IDENT("unop_u_intrinsic"), 2, 2);
1942 set_method_param_type(unop_tp_u, 0, tp_u);
1943 set_method_param_type(unop_tp_u, 1, tp_u);
1944 set_method_res_type(unop_tp_u, 0, tp_u);
1945 set_method_res_type(unop_tp_u, 1, tp_u);
1948 unop_tp_s = new_type_method(IDENT("unop_s_intrinsic"), 2, 2);
1949 set_method_param_type(unop_tp_s, 0, tp_s);
1950 set_method_param_type(unop_tp_s, 1, tp_s);
1951 set_method_res_type(unop_tp_s, 0, tp_s);
1952 set_method_res_type(unop_tp_s, 1, tp_s);
1955 lenv.tv_mode_bytes = new_tarval_from_long(get_mode_size_bytes(param->low_unsigned), mode_Iu);
1956 lenv.waitq = new_pdeq();
1957 lenv.params = param;
1959 /* first clear the generic function pointer for all ops */
1960 clear_irp_opcodes_generic_func();
1962 #define LOWER2(op, fkt) op_##op->ops.generic = (op_func)fkt
1963 #define LOWER(op) LOWER2(op, lower_##op)
1964 #define LOWER_BIN(op) LOWER2(op, lower_Binop)
1965 #define LOWER_UN(op) LOWER2(op, lower_Unop)
2001 /* transform all graphs */
2002 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2003 ir_graph *irg = get_irp_irg(i);
2006 obstack_init(&lenv.obst);
2008 n_idx = get_irg_last_idx(irg);
2009 lenv.n_entries = n_idx;
2010 lenv.entries = xmalloc(n_idx * sizeof(lenv.entries[0]));
2011 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2013 /* first step: link all nodes and allocate data */
2015 lenv.proj_2_block = pmap_create();
2016 irg_walk_graph(irg, firm_clear_link, prepare_links, &lenv);
2018 if (lenv.flags & MUST_BE_LOWERED) {
2019 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2021 /* must do some work */
2022 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2024 /* last step: all waiting nodes */
2025 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2026 while (! pdeq_empty(lenv.waitq)) {
2027 ir_node *node = pdeq_getl(lenv.waitq);
2029 lower_ops(node, &lenv);
2032 /* outs are invalid, we changed the graph */
2033 set_irg_outs_inconsistent(irg);
2035 if (lenv.flags & CF_CHANGED) {
2036 /* control flow changed, dominance info is invalid */
2037 set_irg_doms_inconsistent(irg);
2038 set_irg_extblk_inconsistent(irg);
2039 set_irg_loopinfo_inconsistent(irg);
2042 dump_ir_block_graph(irg, "-dw");
2044 pmap_destroy(lenv.proj_2_block);
2046 obstack_free(&lenv.obst, NULL);
2048 del_pdeq(lenv.waitq);
2051 /* Default implementation. */
2052 entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2053 const ir_mode *imode, const ir_mode *omode,
2061 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2063 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2064 get_mode_name(imode), get_mode_name(omode));
2065 id = new_id_from_str(buf);
2067 ent = new_entity(get_glob_type(), id, method);
2068 set_entity_ld_ident(ent, get_entity_ident(ent));
2069 set_entity_visibility(ent, visibility_external_allocated);