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, *shiftop_tp_u, *shiftop_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 bytes in the lowered modes */
107 tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
108 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
109 pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
110 const lwrdw_param_t *params; /**< transformation parameter */
111 unsigned flags; /**< some flags */
112 int n_entries; /**< number of entries */
116 * Get a primitive mode for a mode.
118 static ir_type *get_primitive_type(ir_mode *mode) {
119 pmap_entry *entry = pmap_find(prim_types, mode);
126 snprintf(buf, sizeof(buf), "_prim_%s", get_mode_name(mode));
127 tp = new_type_primitive(new_id_from_str(buf), mode);
129 pmap_insert(prim_types, mode, tp);
131 } /* get_primitive_type */
134 * Create a method type for a Conv emulation from imode to omode.
136 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env) {
137 conv_tp_entry_t key, *entry;
144 entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
146 int n_param = 1, n_res = 1;
149 if (imode == env->params->high_signed || imode == env->params->high_unsigned)
151 if (omode == env->params->high_signed || omode == env->params->high_unsigned)
154 /* create a new one */
155 snprintf(buf, sizeof(buf), "LConv%s%s", get_mode_name(imode), get_mode_name(omode));
156 mtd = new_type_method(new_id_from_str(buf), n_param, n_res);
158 /* set param types and result types */
160 if (imode == env->params->high_signed) {
161 set_method_param_type(mtd, n_param++, tp_s);
162 set_method_param_type(mtd, n_param++, tp_s);
164 else if (imode == env->params->high_unsigned) {
165 set_method_param_type(mtd, n_param++, tp_u);
166 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);
178 else if (omode == env->params->high_unsigned) {
179 set_method_res_type(mtd, n_res++, tp_u);
180 set_method_res_type(mtd, n_res++, tp_u);
183 ir_type *tp = get_primitive_type(omode);
184 set_method_res_type(mtd, n_res++, tp);
192 } /* get_conv_type */
195 * Add an additional control flow input to a block.
196 * Patch all Phi nodes. The new Phi inputs are copied from
197 * old input number nr.
199 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
201 int i, arity = get_irn_arity(block);
206 NEW_ARR_A(ir_node *, in, arity + 1);
207 for (i = 0; i < arity; ++i)
208 in[i] = get_irn_n(block, i);
211 set_irn_in(block, i + 1, in);
213 for (phi = get_irn_link(block); phi; phi = get_irn_link(phi)) {
214 for (i = 0; i < arity; ++i)
215 in[i] = get_irn_n(phi, i);
217 set_irn_in(phi, i + 1, in);
219 } /* add_block_cf_input_nr */
222 * Add an additional control flow input to a block.
223 * Patch all Phi nodes. The new Phi inputs are copied from
224 * old input from cf tmpl.
226 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
228 int i, arity = get_irn_arity(block);
231 for (i = 0; i < arity; ++i) {
232 if (get_irn_n(block, i) == tmpl) {
238 add_block_cf_input_nr(block, nr, cf);
239 } /* add_block_cf_input */
242 * Return the "operational" mode of a Firm node.
244 static ir_mode *get_irn_op_mode(ir_node *node)
246 switch (get_irn_opcode(node)) {
248 return get_Load_mode(node);
251 return get_irn_mode(get_Store_value(node));
254 return get_irn_mode(get_DivMod_left(node));
257 return get_irn_mode(get_Div_left(node));
260 return get_irn_mode(get_Mod_left(node));
263 return get_irn_mode(get_Cmp_left(node));
266 return get_irn_mode(node);
268 } /* get_irn_op_mode */
271 * Walker, prepare the node links.
273 static void prepare_links(ir_node *node, void *env)
275 lower_env_t *lenv = env;
276 ir_mode *mode = get_irn_op_mode(node);
280 if (mode == lenv->params->high_signed ||
281 mode == lenv->params->high_unsigned) {
282 /* ok, found a node that will be lowered */
283 link = obstack_alloc(&lenv->obst, sizeof(*link));
285 memset(link, 0, sizeof(*link));
287 lenv->entries[get_irn_idx(node)] = link;
288 lenv->flags |= MUST_BE_LOWERED;
290 else if (get_irn_op(node) == op_Conv) {
291 /* Conv nodes have two modes */
292 ir_node *pred = get_Conv_op(node);
293 mode = get_irn_mode(pred);
295 if (mode == lenv->params->high_signed ||
296 mode == lenv->params->high_unsigned) {
297 /* must lower this node either */
298 link = obstack_alloc(&lenv->obst, sizeof(*link));
300 memset(link, 0, sizeof(*link));
302 lenv->entries[get_irn_idx(node)] = link;
303 lenv->flags |= MUST_BE_LOWERED;
309 /* link all Proj nodes to its predecessor:
310 Note that Tuple Proj's and its Projs are linked either. */
311 ir_node *pred = get_Proj_pred(node);
313 set_irn_link(node, get_irn_link(pred));
314 set_irn_link(pred, node);
316 else if (is_Phi(node)) {
317 /* link all Phi nodes to its block */
318 ir_node *block = get_nodes_block(node);
320 set_irn_link(node, get_irn_link(block));
321 set_irn_link(block, node);
323 else if (is_Block(node)) {
324 /* fill the Proj -> Block map */
325 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
326 ir_node *pred = get_Block_cfgpred(node, i);
329 pmap_insert(lenv->proj_2_block, pred, node);
332 } /* prepare_links */
335 * Translate a Constant: create two.
337 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env) {
338 tarval *tv, *tv_l, *tv_h;
340 dbg_info *dbg = get_irn_dbg_info(node);
341 ir_node *block = get_nodes_block(node);
343 ir_graph *irg = current_ir_graph;
345 tv = get_Const_tarval(node);
347 tv_l = tarval_convert_to(tv, mode);
348 low = new_rd_Const(dbg, irg, block, mode, tv_l);
350 tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
351 high = new_rd_Const(dbg, irg, block, mode, tv_h);
353 idx = get_irn_idx(node);
354 assert(idx < env->n_entries);
355 env->entries[idx]->low_word = low;
356 env->entries[idx]->high_word = high;
360 * Translate a Load: create two.
362 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
363 ir_graph *irg = current_ir_graph;
364 ir_node *adr = get_Load_ptr(node);
365 ir_node *mem = get_Load_mem(node);
366 ir_node *low, *high, *proj;
368 ir_node *block = get_nodes_block(node);
371 if (env->params->little_endian) {
373 high = new_r_Add(irg, block, adr,
374 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
378 low = new_r_Add(irg, block, adr,
379 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
384 /* create two loads */
385 dbg = get_irn_dbg_info(node);
386 low = new_rd_Load(dbg, irg, block, mem, low, mode);
387 proj = new_r_Proj(irg, block, low, mode_M, pn_Load_M);
388 high = new_rd_Load(dbg, irg, block, proj, high, mode);
390 set_Load_volatility(low, get_Load_volatility(node));
391 set_Load_volatility(high, get_Load_volatility(node));
393 idx = get_irn_idx(node);
394 assert(idx < env->n_entries);
395 env->entries[idx]->low_word = low;
396 env->entries[idx]->high_word = high;
398 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
399 idx = get_irn_idx(proj);
401 switch (get_Proj_proj(proj)) {
402 case pn_Load_M: /* Memory result. */
403 /* put it to the second one */
404 set_Proj_pred(proj, high);
406 case pn_Load_X_except: /* Execution result if exception occurred. */
407 /* put it to the first one */
408 set_Proj_pred(proj, low);
410 case pn_Load_res: /* Result of load operation. */
411 assert(idx < env->n_entries);
412 env->entries[idx]->low_word = new_r_Proj(irg, block, low, mode, pn_Load_res);
413 env->entries[idx]->high_word = new_r_Proj(irg, block, high, mode, pn_Load_res);
416 assert(0 && "unexpected Proj number");
418 /* mark this proj: we have handled it already, otherwise we might fall into
420 mark_irn_visited(proj);
425 * Translate a Store: create two.
427 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
429 ir_node *block, *adr, *mem;
430 ir_node *low, *high, *irn, *proj;
435 irn = get_Store_value(node);
436 entry = env->entries[get_irn_idx(irn)];
439 if (! entry->low_word) {
440 /* not ready yet, wait */
441 pdeq_putr(env->waitq, node);
445 irg = current_ir_graph;
446 adr = get_Store_ptr(node);
447 mem = get_Store_mem(node);
448 block = get_nodes_block(node);
450 if (env->params->little_endian) {
452 high = new_r_Add(irg, block, adr,
453 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
457 low = new_r_Add(irg, block, adr,
458 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
463 /* create two Stores */
464 dbg = get_irn_dbg_info(node);
465 low = new_rd_Store(dbg, irg, block, mem, low, entry->low_word);
466 proj = new_r_Proj(irg, block, low, mode_M, pn_Store_M);
467 high = new_rd_Store(dbg, irg, block, proj, high, entry->high_word);
469 set_Store_volatility(low, get_Store_volatility(node));
470 set_Store_volatility(high, get_Store_volatility(node));
472 idx = get_irn_idx(node);
473 assert(idx < env->n_entries);
474 env->entries[idx]->low_word = low;
475 env->entries[idx]->high_word = high;
477 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
478 idx = get_irn_idx(proj);
480 switch (get_Proj_proj(proj)) {
481 case pn_Store_M: /* Memory result. */
482 /* put it to the second one */
483 set_Proj_pred(proj, high);
485 case pn_Store_X_except: /* Execution result if exception occurred. */
486 /* put it to the first one */
487 set_Proj_pred(proj, low);
490 assert(0 && "unexpected Proj number");
492 /* mark this proj: we have handled it already, otherwise we might fall into
494 mark_irn_visited(proj);
499 * Return a node containing the address of the intrinsic emulation function.
501 * @param method the method type of the emulation function
502 * @param op the emulated ir_op
503 * @param imode the input mode of the emulated opcode
504 * @param omode the output mode of the emulated opcode
505 * @param block where the new mode is created
506 * @param env the lower environment
508 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
509 ir_mode *imode, ir_mode *omode,
510 ir_node *block, lower_env_t *env) {
513 op_mode_entry_t key, *entry;
520 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
521 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
523 /* create a new one */
524 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
526 assert(ent && "Intrinsic creator must return an entity");
533 return new_r_SymConst(current_ir_graph, block, sym, symconst_addr_ent);
534 } /* get_intrinsic_address */
539 * Create an intrinsic Call.
541 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env) {
542 ir_node *block, *irn, *call, *proj;
551 irn = get_Div_left(node);
552 entry = env->entries[get_irn_idx(irn)];
555 if (! entry->low_word) {
556 /* not ready yet, wait */
557 pdeq_putr(env->waitq, node);
561 in[0] = entry->low_word;
562 in[1] = entry->high_word;
564 irn = get_Div_right(node);
565 entry = env->entries[get_irn_idx(irn)];
568 if (! entry->low_word) {
569 /* not ready yet, wait */
570 pdeq_putr(env->waitq, node);
574 in[2] = entry->low_word;
575 in[3] = entry->high_word;
577 dbg = get_irn_dbg_info(node);
578 block = get_nodes_block(node);
579 irg = current_ir_graph;
581 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
582 opmode = get_irn_op_mode(node);
583 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
584 call = new_rd_Call(dbg, irg, block, get_Div_mem(node),
586 set_irn_pinned(call, get_irn_pinned(node));
587 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
589 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
590 switch (get_Proj_proj(proj)) {
591 case pn_Div_M: /* Memory result. */
592 /* reroute to the call */
593 set_Proj_pred(proj, call);
594 set_Proj_proj(proj, pn_Call_M_except);
596 case pn_Div_X_except: /* Execution result if exception occurred. */
597 /* reroute to the call */
598 set_Proj_pred(proj, call);
599 set_Proj_proj(proj, pn_Call_X_except);
601 case pn_Div_res: /* Result of computation. */
602 idx = get_irn_idx(proj);
603 assert(idx < env->n_entries);
604 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
605 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
608 assert(0 && "unexpected Proj number");
610 /* mark this proj: we have handled it already, otherwise we might fall into
612 mark_irn_visited(proj);
619 * Create an intrinsic Call.
621 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env) {
622 ir_node *block, *proj, *irn, *call;
631 irn = get_Mod_left(node);
632 entry = env->entries[get_irn_idx(irn)];
635 if (! entry->low_word) {
636 /* not ready yet, wait */
637 pdeq_putr(env->waitq, node);
641 in[0] = entry->low_word;
642 in[1] = entry->high_word;
644 irn = get_Mod_right(node);
645 entry = env->entries[get_irn_idx(irn)];
648 if (! entry->low_word) {
649 /* not ready yet, wait */
650 pdeq_putr(env->waitq, node);
654 in[2] = entry->low_word;
655 in[3] = entry->high_word;
657 dbg = get_irn_dbg_info(node);
658 block = get_nodes_block(node);
659 irg = current_ir_graph;
661 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
662 opmode = get_irn_op_mode(node);
663 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
664 call = new_rd_Call(dbg, irg, block, get_Mod_mem(node),
666 set_irn_pinned(call, get_irn_pinned(node));
667 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
669 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
670 switch (get_Proj_proj(proj)) {
671 case pn_Mod_M: /* Memory result. */
672 /* reroute to the call */
673 set_Proj_pred(proj, call);
674 set_Proj_proj(proj, pn_Call_M_except);
676 case pn_Mod_X_except: /* Execution result if exception occurred. */
677 /* reroute to the call */
678 set_Proj_pred(proj, call);
679 set_Proj_proj(proj, pn_Call_X_except);
681 case pn_Mod_res: /* Result of computation. */
682 idx = get_irn_idx(proj);
683 assert(idx < env->n_entries);
684 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
685 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
688 assert(0 && "unexpected Proj number");
690 /* mark this proj: we have handled it already, otherwise we might fall into
692 mark_irn_visited(proj);
697 * Translate a DivMod.
699 * Create two intrinsic Calls.
701 static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env) {
702 ir_node *block, *proj, *irn, *mem, *callDiv, *callMod, *resDiv, *resMod;
712 /* check if both results are needed */
713 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
714 switch (get_Proj_proj(proj)) {
715 case pn_DivMod_res_div: flags |= 1; break;
716 case pn_DivMod_res_mod: flags |= 2; break;
721 irn = get_DivMod_left(node);
722 entry = env->entries[get_irn_idx(irn)];
725 if (! entry->low_word) {
726 /* not ready yet, wait */
727 pdeq_putr(env->waitq, node);
731 in[0] = entry->low_word;
732 in[1] = entry->high_word;
734 irn = get_DivMod_right(node);
735 entry = env->entries[get_irn_idx(irn)];
738 if (! entry->low_word) {
739 /* not ready yet, wait */
740 pdeq_putr(env->waitq, node);
744 in[2] = entry->low_word;
745 in[3] = entry->high_word;
747 dbg = get_irn_dbg_info(node);
748 block = get_nodes_block(node);
749 irg = current_ir_graph;
751 mem = get_DivMod_mem(node);
753 callDiv = callMod = NULL;
754 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
756 opmode = get_irn_op_mode(node);
757 irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, block, env);
758 callDiv = new_rd_Call(dbg, irg, block, mem,
760 set_irn_pinned(callDiv, get_irn_pinned(node));
761 resDiv = new_r_Proj(irg, block, callDiv, mode_T, pn_Call_T_result);
765 mem = new_r_Proj(irg, block, callDiv, mode_M, pn_Call_M);
766 opmode = get_irn_op_mode(node);
767 irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, block, env);
768 callMod = new_rd_Call(dbg, irg, block, mem,
770 set_irn_pinned(callMod, get_irn_pinned(node));
771 resMod = new_r_Proj(irg, block, callMod, mode_T, pn_Call_T_result);
774 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
775 switch (get_Proj_proj(proj)) {
776 case pn_DivMod_M: /* Memory result. */
777 /* reroute to the first call */
778 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
779 set_Proj_proj(proj, pn_Call_M_except);
781 case pn_DivMod_X_except: /* Execution result if exception occurred. */
782 /* reroute to the first call */
783 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
784 set_Proj_proj(proj, pn_Call_X_except);
786 case pn_DivMod_res_div: /* Result of Div. */
787 idx = get_irn_idx(proj);
788 assert(idx < env->n_entries);
789 env->entries[idx]->low_word = new_r_Proj(irg, block, resDiv, mode, 0);
790 env->entries[idx]->high_word = new_r_Proj(irg, block, resDiv, mode, 1);
792 case pn_DivMod_res_mod: /* Result of Mod. */
793 idx = get_irn_idx(proj);
794 env->entries[idx]->low_word = new_r_Proj(irg, block, resMod, mode, 0);
795 env->entries[idx]->high_word = new_r_Proj(irg, block, resMod, mode, 1);
798 assert(0 && "unexpected Proj number");
800 /* mark this proj: we have handled it already, otherwise we might fall into
802 mark_irn_visited(proj);
809 * Create an intrinsic Call.
811 static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env) {
812 ir_node *block, *irn;
820 irn = get_binop_left(node);
821 entry = env->entries[get_irn_idx(irn)];
824 if (! entry->low_word) {
825 /* not ready yet, wait */
826 pdeq_putr(env->waitq, node);
830 in[0] = entry->low_word;
831 in[1] = entry->high_word;
833 irn = get_binop_right(node);
834 entry = env->entries[get_irn_idx(irn)];
837 if (! entry->low_word) {
838 /* not ready yet, wait */
839 pdeq_putr(env->waitq, node);
843 in[2] = entry->low_word;
844 in[3] = entry->high_word;
846 dbg = get_irn_dbg_info(node);
847 block = get_nodes_block(node);
848 irg = current_ir_graph;
850 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
851 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
852 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
854 set_irn_pinned(irn, get_irn_pinned(node));
855 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
857 idx = get_irn_idx(node);
858 assert(idx < env->n_entries);
859 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
860 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
864 * Translate a Shiftop.
866 * Create an intrinsic Call.
868 static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env) {
869 ir_node *block, *irn;
877 irn = get_binop_left(node);
878 entry = env->entries[get_irn_idx(irn)];
881 if (! entry->low_word) {
882 /* not ready yet, wait */
883 pdeq_putr(env->waitq, node);
887 in[0] = entry->low_word;
888 in[1] = entry->high_word;
890 /* The shift count is always mode_Iu in firm, so there is no need for lowering */
891 in[2] = get_binop_right(node);
893 dbg = get_irn_dbg_info(node);
894 block = get_nodes_block(node);
895 irg = current_ir_graph;
897 mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
898 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
899 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
901 set_irn_pinned(irn, get_irn_pinned(node));
902 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
904 idx = get_irn_idx(node);
905 assert(idx < env->n_entries);
906 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
907 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
908 } /* lower_Shiftop */
911 * Translate a Shr and handle special cases.
913 static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env) {
914 ir_node *right = get_Shr_right(node);
915 ir_graph *irg = current_ir_graph;
917 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
918 tarval *tv = get_Const_tarval(right);
920 if (tarval_is_long(tv) &&
921 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
922 ir_node *block = get_nodes_block(node);
923 ir_node *left = get_Shr_left(node);
925 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
926 int idx = get_irn_idx(left);
928 left = env->entries[idx]->high_word;
929 idx = get_irn_idx(node);
932 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
933 env->entries[idx]->low_word = new_r_Shr(irg, block, left, c, mode);
936 env->entries[idx]->low_word = left;
937 env->entries[idx]->high_word = new_r_Const(irg, block, mode, get_mode_null(mode));
942 lower_Shiftop(node, mode, env);
946 * Translate a Shl and handle special cases.
948 static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env) {
949 ir_node *right = get_Shl_right(node);
950 ir_graph *irg = current_ir_graph;
952 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
953 tarval *tv = get_Const_tarval(right);
955 if (tarval_is_long(tv) &&
956 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
957 ir_node *block = get_nodes_block(node);
958 ir_node *left = get_Shl_left(node);
960 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
961 int idx = get_irn_idx(left);
963 left = env->entries[idx]->low_word;
964 idx = get_irn_idx(node);
967 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
968 env->entries[idx]->high_word = new_r_Shl(irg, block, left, c, mode);
971 env->entries[idx]->high_word = left;
972 env->entries[idx]->low_word = new_r_Const(irg, block, mode, get_mode_null(mode));
977 lower_Shiftop(node, mode, env);
981 * Translate a Shrs and handle special cases.
983 static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env) {
984 ir_node *right = get_Shrs_right(node);
985 ir_graph *irg = current_ir_graph;
987 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
988 tarval *tv = get_Const_tarval(right);
990 if (tarval_is_long(tv) &&
991 get_tarval_long(tv) >= get_mode_size_bits(mode)) {
992 ir_node *block = get_nodes_block(node);
993 ir_node *left = get_Shrs_left(node);
994 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
996 int idx = get_irn_idx(left);
998 left = env->entries[idx]->high_word;
999 idx = get_irn_idx(node);
1002 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
1003 env->entries[idx]->low_word = new_r_Shrs(irg, block, left, c, mode);
1006 env->entries[idx]->low_word = left;
1008 c = new_r_Const_long(irg, block, mode_Iu, get_mode_size_bits(mode) - 1);
1009 env->entries[idx]->high_word = new_r_Shrs(irg, block, left, c, mode);
1014 lower_Shiftop(node, mode, env);
1018 * Translate a Rot and handle special cases.
1020 static void lower_Rot(ir_node *node, ir_mode *mode, lower_env_t *env) {
1021 ir_node *right = get_Rot_right(node);
1023 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
1024 tarval *tv = get_Const_tarval(right);
1026 if (tarval_is_long(tv) &&
1027 get_tarval_long(tv) == get_mode_size_bits(mode)) {
1028 ir_node *left = get_Rot_left(node);
1030 int idx = get_irn_idx(left);
1032 l = env->entries[idx]->low_word;
1033 h = env->entries[idx]->high_word;
1034 idx = get_irn_idx(node);
1036 env->entries[idx]->low_word = h;
1037 env->entries[idx]->high_word = l;
1042 lower_Shiftop(node, mode, env);
1046 * Translate an Unop.
1048 * Create an intrinsic Call.
1050 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
1051 ir_node *block, *irn;
1057 node_entry_t *entry;
1059 irn = get_unop_op(node);
1060 entry = env->entries[get_irn_idx(irn)];
1063 if (! entry->low_word) {
1064 /* not ready yet, wait */
1065 pdeq_putr(env->waitq, node);
1069 in[0] = entry->low_word;
1070 in[1] = entry->high_word;
1072 dbg = get_irn_dbg_info(node);
1073 block = get_nodes_block(node);
1074 irg = current_ir_graph;
1076 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
1077 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
1078 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
1080 set_irn_pinned(irn, get_irn_pinned(node));
1081 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
1083 idx = get_irn_idx(node);
1084 assert(idx < env->n_entries);
1085 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, mode, 0);
1086 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
1090 * Translate a logical Binop.
1092 * Create two logical Binops.
1094 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
1095 ir_node *(*constr_rd)(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
1096 ir_node *block, *irn;
1097 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
1101 node_entry_t *entry;
1103 irn = get_binop_left(node);
1104 entry = env->entries[get_irn_idx(irn)];
1107 if (! entry->low_word) {
1108 /* not ready yet, wait */
1109 pdeq_putr(env->waitq, node);
1113 lop_l = entry->low_word;
1114 lop_h = entry->high_word;
1116 irn = get_binop_right(node);
1117 entry = env->entries[get_irn_idx(irn)];
1120 if (! entry->low_word) {
1121 /* not ready yet, wait */
1122 pdeq_putr(env->waitq, node);
1126 rop_l = entry->low_word;
1127 rop_h = entry->high_word;
1129 dbg = get_irn_dbg_info(node);
1130 block = get_nodes_block(node);
1132 idx = get_irn_idx(node);
1133 assert(idx < env->n_entries);
1134 irg = current_ir_graph;
1135 env->entries[idx]->low_word = constr_rd(dbg, irg, block, lop_l, rop_l, mode);
1136 env->entries[idx]->high_word = constr_rd(dbg, irg, block, lop_h, rop_h, mode);
1137 } /* lower_Binop_logical */
1139 /** create a logical operation tranformation */
1140 #define lower_logical(op) \
1141 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
1142 lower_Binop_logical(node, mode, env, new_rd_##op); \
1152 * Create two logical Nots.
1154 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env) {
1155 ir_node *block, *irn;
1156 ir_node *op_l, *op_h;
1160 node_entry_t *entry;
1162 irn = get_Not_op(node);
1163 entry = env->entries[get_irn_idx(irn)];
1166 if (! entry->low_word) {
1167 /* not ready yet, wait */
1168 pdeq_putr(env->waitq, node);
1172 op_l = entry->low_word;
1173 op_h = entry->high_word;
1175 dbg = get_irn_dbg_info(node);
1176 block = get_nodes_block(node);
1177 irg = current_ir_graph;
1179 idx = get_irn_idx(node);
1180 assert(idx < env->n_entries);
1181 env->entries[idx]->low_word = new_rd_Not(dbg, current_ir_graph, block, op_l, mode);
1182 env->entries[idx]->high_word = new_rd_Not(dbg, current_ir_graph, block, op_h, mode);
1188 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env) {
1189 ir_node *cmp, *left, *right, *block;
1190 ir_node *sel = get_Cond_selector(node);
1191 ir_mode *m = get_irn_mode(sel);
1195 node_entry_t *lentry, *rentry;
1196 ir_node *proj, *projT = NULL, *projF = NULL;
1197 ir_node *new_bl, *cmpH, *cmpL, *irn;
1198 ir_node *projHF, *projHT;
1204 cmp = get_Proj_pred(sel);
1205 left = get_Cmp_left(cmp);
1206 idx = get_irn_idx(left);
1207 lentry = env->entries[idx];
1213 right = get_Cmp_right(cmp);
1214 idx = get_irn_idx(right);
1215 rentry = env->entries[idx];
1218 if (! lentry->low_word || !rentry->low_word) {
1220 pdeq_putr(env->waitq, node);
1224 /* all right, build the code */
1225 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1226 long proj_nr = get_Proj_proj(proj);
1228 if (proj_nr == pn_Cond_true) {
1229 assert(projT == NULL && "more than one Proj(true)");
1233 assert(proj_nr == pn_Cond_false);
1234 assert(projF == NULL && "more than one Proj(false)");
1237 mark_irn_visited(proj);
1239 assert(projT && projF);
1241 /* create a new high compare */
1242 block = get_nodes_block(cmp);
1243 dbg = get_irn_dbg_info(cmp);
1244 irg = current_ir_graph;
1246 cmpH = new_rd_Cmp(dbg, irg, block, lentry->high_word, rentry->high_word);
1248 pnc = get_Proj_proj(sel);
1249 if (pnc == pn_Cmp_Eq) {
1250 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1251 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1254 dst_blk = entry->value;
1256 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Eq);
1257 dbg = get_irn_dbg_info(node);
1258 irn = new_rd_Cond(dbg, irg, block, irn);
1260 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1261 mark_irn_visited(projHF);
1262 exchange(projF, projHF);
1264 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1265 mark_irn_visited(projHT);
1267 new_bl = new_r_Block(irg, 1, &projHT);
1269 dbg = get_irn_dbg_info(cmp);
1270 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1271 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Eq);
1272 dbg = get_irn_dbg_info(node);
1273 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1275 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1276 mark_irn_visited(proj);
1277 add_block_cf_input(dst_blk, projHF, proj);
1279 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1280 mark_irn_visited(proj);
1281 exchange(projT, proj);
1283 else if (pnc == pn_Cmp_Lg) {
1284 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1285 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1288 dst_blk = entry->value;
1290 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Lg);
1291 dbg = get_irn_dbg_info(node);
1292 irn = new_rd_Cond(dbg, irg, block, irn);
1294 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1295 mark_irn_visited(projHT);
1296 exchange(projT, projHT);
1298 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1299 mark_irn_visited(projHF);
1301 new_bl = new_r_Block(irg, 1, &projHF);
1303 dbg = get_irn_dbg_info(cmp);
1304 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1305 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Lg);
1306 dbg = get_irn_dbg_info(node);
1307 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1309 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1310 mark_irn_visited(proj);
1311 add_block_cf_input(dst_blk, projHT, proj);
1313 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1314 mark_irn_visited(proj);
1315 exchange(projF, proj);
1318 /* a rel b <==> a_h rel b_h || (a_h == b_h && a_l rel b_l) */
1319 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1322 entry = pmap_find(env->proj_2_block, projT);
1324 dstT = entry->value;
1326 entry = pmap_find(env->proj_2_block, projF);
1328 dstF = entry->value;
1330 irn = new_r_Proj(irg, block, cmpH, mode_b, pnc);
1331 dbg = get_irn_dbg_info(node);
1332 irn = new_rd_Cond(dbg, irg, block, irn);
1334 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1335 mark_irn_visited(projHT);
1336 exchange(projT, projHT);
1339 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1340 mark_irn_visited(projHF);
1342 newbl_eq = new_r_Block(irg, 1, &projHF);
1344 irn = new_r_Proj(irg, newbl_eq, cmpH, mode_b, pn_Cmp_Eq);
1345 irn = new_rd_Cond(dbg, irg, newbl_eq, irn);
1347 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_false);
1348 mark_irn_visited(proj);
1349 exchange(projF, proj);
1352 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_true);
1353 mark_irn_visited(proj);
1355 newbl_l = new_r_Block(irg, 1, &proj);
1357 dbg = get_irn_dbg_info(cmp);
1358 cmpL = new_rd_Cmp(dbg, irg, newbl_l, lentry->low_word, rentry->low_word);
1359 irn = new_r_Proj(irg, newbl_l, cmpL, mode_b, pnc);
1360 dbg = get_irn_dbg_info(node);
1361 irn = new_rd_Cond(dbg, irg, newbl_l, irn);
1363 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_true);
1364 mark_irn_visited(proj);
1365 add_block_cf_input(dstT, projT, proj);
1367 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_false);
1368 mark_irn_visited(proj);
1369 add_block_cf_input(dstF, projF, proj);
1372 /* we have changed the control flow */
1373 env->flags |= CF_CHANGED;
1376 idx = get_irn_idx(sel);
1378 if (env->entries[idx]) {
1380 Bad, a jump-table with double-word index.
1381 This should not happen, but if it does we handle
1382 it like a Conv were between (in other words, ignore
1386 if (! env->entries[idx]->low_word) {
1387 /* not ready yet, wait */
1388 pdeq_putr(env->waitq, node);
1391 set_Cond_selector(node, env->entries[idx]->low_word);
1397 * Translate a Conv to higher_signed
1399 static void lower_Conv_to_Ls(ir_node *node, lower_env_t *env) {
1400 ir_node *op = get_Conv_op(node);
1401 ir_mode *imode = get_irn_mode(op);
1402 ir_mode *dst_mode = env->params->low_signed;
1403 int idx = get_irn_idx(node);
1404 ir_graph *irg = current_ir_graph;
1405 ir_node *block = get_nodes_block(node);
1406 dbg_info *dbg = get_irn_dbg_info(node);
1408 assert(idx < env->n_entries);
1410 if (mode_is_int(imode) || mode_is_reference(imode)) {
1411 /* simple case: create a high word */
1412 if (imode != dst_mode)
1413 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1415 env->entries[idx]->low_word = op;
1416 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op,
1417 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode) - 1), dst_mode);
1420 ir_node *irn, *call;
1421 ir_mode *omode = env->params->high_signed;
1422 ir_type *mtp = get_conv_type(imode, omode, env);
1424 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1425 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1426 set_irn_pinned(call, get_irn_pinned(node));
1427 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1429 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1430 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1432 } /* lower_Conv_to_Ls */
1435 * Translate a Conv to higher_unsigned
1437 static void lower_Conv_to_Lu(ir_node *node, lower_env_t *env) {
1438 ir_node *op = get_Conv_op(node);
1439 ir_mode *imode = get_irn_mode(op);
1440 ir_mode *dst_mode = env->params->low_unsigned;
1441 int idx = get_irn_idx(node);
1442 ir_graph *irg = current_ir_graph;
1443 ir_node *block = get_nodes_block(node);
1444 dbg_info *dbg = get_irn_dbg_info(node);
1446 assert(idx < env->n_entries);
1448 if (mode_is_int(imode) || mode_is_reference(imode)) {
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 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1462 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1463 set_irn_pinned(call, get_irn_pinned(node));
1464 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1466 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1467 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1469 } /* lower_Conv_to_Lu */
1472 * Translate a Conv from higher_signed
1474 static void lower_Conv_from_Ls(ir_node *node, lower_env_t *env) {
1475 ir_node *op = get_Conv_op(node);
1476 ir_mode *omode = get_irn_mode(node);
1477 ir_node *block = get_nodes_block(node);
1478 dbg_info *dbg = get_irn_dbg_info(node);
1479 int idx = get_irn_idx(op);
1480 ir_graph *irg = current_ir_graph;
1482 assert(idx < env->n_entries);
1484 if (mode_is_int(omode) || mode_is_reference(omode)) {
1485 op = env->entries[idx]->low_word;
1487 /* simple case: create a high word */
1488 if (omode != env->params->low_signed)
1489 op = new_rd_Conv(dbg, irg, block, op, omode);
1491 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);
1533 ir_node *irn, *call, *in[2];
1534 ir_mode *imode = env->params->high_unsigned;
1535 ir_type *mtp = get_conv_type(imode, omode, env);
1537 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1538 in[0] = env->entries[idx]->low_word;
1539 in[1] = env->entries[idx]->high_word;
1541 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1542 set_irn_pinned(call, get_irn_pinned(node));
1543 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1545 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1547 } /* lower_Conv_from_Lu */
1552 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env) {
1553 mode = get_irn_mode(node);
1555 if (mode == env->params->high_signed)
1556 lower_Conv_to_Ls(node, env);
1557 else if (mode == env->params->high_unsigned)
1558 lower_Conv_to_Lu(node, env);
1560 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1562 if (mode == env->params->high_signed)
1563 lower_Conv_from_Ls(node, env);
1565 assert(mode == env->params->high_unsigned);
1566 lower_Conv_from_Lu(node, env);
1572 * Lower the method type.
1574 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env) {
1579 if (is_lowered_type(mtp))
1582 entry = pmap_find(lowered_type, mtp);
1584 int i, n, r, n_param, n_res;
1586 /* count new number of params */
1587 n_param = n = get_method_n_params(mtp);
1588 for (i = n_param - 1; i >= 0; --i) {
1589 ir_type *tp = get_method_param_type(mtp, i);
1591 if (is_Primitive_type(tp)) {
1592 ir_mode *mode = get_type_mode(tp);
1594 if (mode == env->params->high_signed ||
1595 mode == env->params->high_unsigned)
1600 /* count new number of results */
1601 n_res = r = get_method_n_ress(mtp);
1602 for (i = n_res - 1; i >= 0; --i) {
1603 ir_type *tp = get_method_res_type(mtp, i);
1605 if (is_Primitive_type(tp)) {
1606 ir_mode *mode = get_type_mode(tp);
1608 if (mode == env->params->high_signed ||
1609 mode == env->params->high_unsigned)
1614 id = mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
1615 res = new_type_method(id, n_param, n_res);
1617 /* set param types and result types */
1618 for (i = n_param = 0; i < n; ++i) {
1619 ir_type *tp = get_method_param_type(mtp, i);
1621 if (is_Primitive_type(tp)) {
1622 ir_mode *mode = get_type_mode(tp);
1624 if (mode == env->params->high_signed) {
1625 set_method_param_type(res, n_param++, tp_s);
1626 set_method_param_type(res, n_param++, tp_s);
1628 else if (mode == env->params->high_unsigned) {
1629 set_method_param_type(res, n_param++, tp_u);
1630 set_method_param_type(res, n_param++, tp_u);
1633 set_method_param_type(res, n_param++, tp);
1636 set_method_param_type(res, n_param++, tp);
1638 for (i = n_res = 0; i < r; ++i) {
1639 ir_type *tp = get_method_res_type(mtp, i);
1641 if (is_Primitive_type(tp)) {
1642 ir_mode *mode = get_type_mode(tp);
1644 if (mode == env->params->high_signed) {
1645 set_method_res_type(res, n_res++, tp_s);
1646 set_method_res_type(res, n_res++, tp_s);
1648 else if (mode == env->params->high_unsigned) {
1649 set_method_res_type(res, n_res++, tp_u);
1650 set_method_res_type(res, n_res++, tp_u);
1653 set_method_res_type(res, n_res++, tp);
1656 set_method_res_type(res, n_res++, tp);
1658 set_lowered_type(mtp, res);
1659 pmap_insert(lowered_type, mtp, res);
1667 * Translate a Return.
1669 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env) {
1670 ir_graph *irg = current_ir_graph;
1671 entity *ent = get_irg_entity(irg);
1672 ir_type *mtp = get_entity_type(ent);
1677 /* check if this return must be lowered */
1678 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1679 ir_node *pred = get_Return_res(node, i);
1680 ir_mode *mode = get_irn_op_mode(pred);
1682 if (mode == env->params->high_signed ||
1683 mode == env->params->high_unsigned) {
1684 idx = get_irn_idx(pred);
1685 if (! env->entries[idx]->low_word) {
1686 /* not ready yet, wait */
1687 pdeq_putr(env->waitq, node);
1696 ent = get_irg_entity(irg);
1697 mtp = get_entity_type(ent);
1699 mtp = lower_mtp(mtp, env);
1700 set_entity_type(ent, mtp);
1702 /* create a new in array */
1703 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1704 in[0] = get_Return_mem(node);
1706 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1707 ir_node *pred = get_Return_res(node, i);
1709 idx = get_irn_idx(pred);
1710 assert(idx < env->n_entries);
1712 if (env->entries[idx]) {
1713 in[++j] = env->entries[idx]->low_word;
1714 in[++j] = env->entries[idx]->high_word;
1720 set_irn_in(node, j+1, in);
1721 } /* lower_Return */
1724 * Translate the parameters.
1726 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env) {
1727 ir_graph *irg = current_ir_graph;
1728 entity *ent = get_irg_entity(irg);
1729 ir_type *tp = get_entity_type(ent);
1732 int i, j, n_params, rem;
1733 ir_node *proj, *args;
1735 if (is_lowered_type(tp))
1736 mtp = get_associated_type(tp);
1740 assert(! is_lowered_type(mtp));
1742 n_params = get_method_n_params(mtp);
1746 NEW_ARR_A(long, new_projs, n_params);
1748 /* first check if we have parameters that must be fixed */
1749 for (i = j = 0; i < n_params; ++i, ++j) {
1750 ir_type *tp = get_method_param_type(mtp, i);
1753 if (is_Primitive_type(tp)) {
1754 ir_mode *mode = get_type_mode(tp);
1756 if (mode == env->params->high_signed ||
1757 mode == env->params->high_unsigned)
1764 mtp = lower_mtp(mtp, env);
1765 set_entity_type(ent, mtp);
1767 /* switch off optimization for new Proj nodes or they might be CSE'ed
1768 with not patched one's */
1769 rem = get_optimize();
1772 /* ok, fix all Proj's and create new ones */
1773 args = get_irg_args(irg);
1774 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1775 ir_node *pred = get_Proj_pred(proj);
1781 /* do not visit this node again */
1782 mark_irn_visited(proj);
1787 proj_nr = get_Proj_proj(proj);
1788 set_Proj_proj(proj, new_projs[proj_nr]);
1790 idx = get_irn_idx(proj);
1791 if (env->entries[idx]) {
1792 mode = get_irn_mode(proj);
1794 if (mode == env->params->high_signed)
1795 mode = env->params->low_signed;
1797 mode = env->params->low_unsigned;
1799 dbg = get_irn_dbg_info(proj);
1800 env->entries[idx]->low_word =
1801 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr]);
1802 env->entries[idx]->high_word =
1803 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr] + 1);
1812 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env) {
1813 ir_graph *irg = current_ir_graph;
1814 ir_type *tp = get_Call_type(node);
1816 ir_node **in, *proj, *results;
1817 int n_params, n_res, need_lower = 0;
1819 long *res_numbers = NULL;
1821 if (is_lowered_type(tp))
1822 call_tp = get_associated_type(tp);
1826 assert(! is_lowered_type(call_tp));
1828 n_params = get_method_n_params(call_tp);
1829 for (i = 0; i < n_params; ++i) {
1830 ir_type *tp = get_method_param_type(call_tp, i);
1832 if (is_Primitive_type(tp)) {
1833 ir_mode *mode = get_type_mode(tp);
1835 if (mode == env->params->high_signed ||
1836 mode == env->params->high_unsigned) {
1842 n_res = get_method_n_ress(call_tp);
1844 NEW_ARR_A(long, res_numbers, n_res);
1846 for (i = j = 0; i < n_res; ++i, ++j) {
1847 ir_type *tp = get_method_res_type(call_tp, i);
1850 if (is_Primitive_type(tp)) {
1851 ir_mode *mode = get_type_mode(tp);
1853 if (mode == env->params->high_signed ||
1854 mode == env->params->high_unsigned) {
1865 /* let's lower it */
1866 call_tp = lower_mtp(call_tp, env);
1867 set_Call_type(node, call_tp);
1869 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1871 in[0] = get_Call_mem(node);
1872 in[1] = get_Call_ptr(node);
1874 for (j = 2, i = 0; i < n_params; ++i) {
1875 ir_node *pred = get_Call_param(node, i);
1876 int idx = get_irn_idx(pred);
1878 if (env->entries[idx]) {
1879 if (! env->entries[idx]->low_word) {
1880 /* not ready yet, wait */
1881 pdeq_putr(env->waitq, node);
1884 in[j++] = env->entries[idx]->low_word;
1885 in[j++] = env->entries[idx]->high_word;
1891 set_irn_in(node, j, in);
1893 /* fix the results */
1895 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1896 long proj_nr = get_Proj_proj(proj);
1898 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1899 /* found the result proj */
1905 if (results) { /* there are results */
1906 int rem = get_optimize();
1908 /* switch off optimization for new Proj nodes or they might be CSE'ed
1909 with not patched one's */
1911 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1912 if (get_Proj_pred(proj) == results) {
1913 long proj_nr = get_Proj_proj(proj);
1916 /* found a result */
1917 set_Proj_proj(proj, res_numbers[proj_nr]);
1918 idx = get_irn_idx(proj);
1919 if (env->entries[idx]) {
1920 ir_mode *mode = get_irn_mode(proj);
1923 if (mode == env->params->high_signed)
1924 mode = env->params->low_signed;
1926 mode = env->params->low_unsigned;
1928 dbg = get_irn_dbg_info(proj);
1929 env->entries[idx]->low_word =
1930 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr]);
1931 env->entries[idx]->high_word =
1932 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr] + 1);
1934 mark_irn_visited(proj);
1942 * Translate an Unknown into two.
1944 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env) {
1945 int idx = get_irn_idx(node);
1946 ir_graph *irg = current_ir_graph;
1948 env->entries[idx]->low_word =
1949 env->entries[idx]->high_word = new_r_Unknown(irg, mode);
1950 } /* lower_Unknown */
1955 * First step: just create two templates
1957 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env) {
1958 ir_graph *irg = current_ir_graph;
1959 ir_node *block, *unk;
1960 ir_node **inl, **inh;
1962 int idx, i, arity = get_Phi_n_preds(phi);
1965 idx = get_irn_idx(phi);
1966 if (env->entries[idx]->low_word) {
1967 /* Phi nodes already build, check for inputs */
1968 ir_node *phil = env->entries[idx]->low_word;
1969 ir_node *phih = env->entries[idx]->high_word;
1971 for (i = 0; i < arity; ++i) {
1972 ir_node *pred = get_Phi_pred(phi, i);
1973 int idx = get_irn_idx(pred);
1975 if (env->entries[idx]->low_word) {
1976 set_Phi_pred(phil, i, env->entries[idx]->low_word);
1977 set_Phi_pred(phih, i, env->entries[idx]->high_word);
1980 /* still not ready */
1981 pdeq_putr(env->waitq, phi);
1987 /* first create a new in array */
1988 NEW_ARR_A(ir_node *, inl, arity);
1989 NEW_ARR_A(ir_node *, inh, arity);
1990 unk = new_r_Unknown(irg, mode);
1992 for (i = 0; i < arity; ++i) {
1993 ir_node *pred = get_Phi_pred(phi, i);
1994 int idx = get_irn_idx(pred);
1996 if (env->entries[idx]->low_word) {
1997 inl[i] = env->entries[idx]->low_word;
1998 inh[i] = env->entries[idx]->high_word;
2007 dbg = get_irn_dbg_info(phi);
2008 block = get_nodes_block(phi);
2010 idx = get_irn_idx(phi);
2011 assert(idx < env->n_entries);
2012 env->entries[idx]->low_word = new_rd_Phi(dbg, irg, block, arity, inl, mode);
2013 env->entries[idx]->high_word = new_rd_Phi(dbg, irg, block, arity, inh, mode);
2016 /* not yet finished */
2017 pdeq_putr(env->waitq, phi);
2022 * check for opcodes that must always be lowered.
2024 static int always_lower(opcode code) {
2034 } /* always_lower */
2036 /** The type of a lower function. */
2037 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
2042 static void lower_ops(ir_node *node, void *env)
2044 lower_env_t *lenv = env;
2045 node_entry_t *entry;
2046 int idx = get_irn_idx(node);
2048 entry = lenv->entries[idx];
2049 if (entry || always_lower(get_irn_opcode(node))) {
2050 ir_op *op = get_irn_op(node);
2051 lower_func func = (lower_func)op->ops.generic;
2054 ir_mode *mode = get_irn_op_mode(node);
2056 if (mode == lenv->params->high_signed)
2057 mode = lenv->params->low_signed;
2059 mode = lenv->params->low_unsigned;
2061 DB((dbg, LEVEL_1, " %+F\n", node));
2062 func(node, mode, lenv);
2067 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
2070 * Compare two op_mode_entry_t's.
2072 static int cmp_op_mode(const void *elt, const void *key, size_t size) {
2073 const op_mode_entry_t *e1 = elt;
2074 const op_mode_entry_t *e2 = key;
2076 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
2080 * Compare two conv_tp_entry_t's.
2082 static int cmp_conv_tp(const void *elt, const void *key, size_t size) {
2083 const conv_tp_entry_t *e1 = elt;
2084 const conv_tp_entry_t *e2 = key;
2086 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
2088 static int cmp_conv_tp */
2093 void lower_dw_ops(const lwrdw_param_t *param)
2102 if (! param->enable)
2105 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
2107 assert(2 * get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->high_signed));
2108 assert(2 * get_mode_size_bits(param->low_unsigned) == get_mode_size_bits(param->high_unsigned));
2109 assert(get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->low_unsigned));
2112 prim_types = pmap_create();
2113 if (! intrinsic_fkt)
2114 intrinsic_fkt = new_set(cmp_op_mode, iro_MaxOpcode);
2116 conv_types = new_set(cmp_conv_tp, 16);
2118 lowered_type = pmap_create();
2121 tp_u = get_primitive_type(param->low_unsigned);
2123 tp_s = get_primitive_type(param->low_signed);
2127 binop_tp_u = new_type_method(IDENT("binop_u_intrinsic"), 4, 2);
2128 set_method_param_type(binop_tp_u, 0, tp_u);
2129 set_method_param_type(binop_tp_u, 1, tp_u);
2130 set_method_param_type(binop_tp_u, 2, tp_u);
2131 set_method_param_type(binop_tp_u, 3, tp_u);
2132 set_method_res_type(binop_tp_u, 0, tp_u);
2133 set_method_res_type(binop_tp_u, 1, tp_u);
2136 binop_tp_s = new_type_method(IDENT("binop_s_intrinsic"), 4, 2);
2137 set_method_param_type(binop_tp_s, 0, tp_s);
2138 set_method_param_type(binop_tp_s, 1, tp_s);
2139 set_method_param_type(binop_tp_s, 2, tp_s);
2140 set_method_param_type(binop_tp_s, 3, tp_s);
2141 set_method_res_type(binop_tp_s, 0, tp_s);
2142 set_method_res_type(binop_tp_s, 1, tp_s);
2144 if (! shiftop_tp_u) {
2145 shiftop_tp_u = new_type_method(IDENT("shiftop_u_intrinsic"), 3, 2);
2146 set_method_param_type(shiftop_tp_u, 0, tp_u);
2147 set_method_param_type(shiftop_tp_u, 1, tp_u);
2148 set_method_param_type(shiftop_tp_u, 2, tp_u);
2149 set_method_res_type(shiftop_tp_u, 0, tp_u);
2150 set_method_res_type(shiftop_tp_u, 1, tp_u);
2152 if (! shiftop_tp_s) {
2153 shiftop_tp_s = new_type_method(IDENT("shiftop_s_intrinsic"), 3, 2);
2154 set_method_param_type(shiftop_tp_s, 0, tp_s);
2155 set_method_param_type(shiftop_tp_s, 1, tp_s);
2156 /* beware: shift count is always mode_Iu */
2157 set_method_param_type(shiftop_tp_s, 2, tp_u);
2158 set_method_res_type(shiftop_tp_s, 0, tp_s);
2159 set_method_res_type(shiftop_tp_s, 1, tp_s);
2162 unop_tp_u = new_type_method(IDENT("unop_u_intrinsic"), 2, 2);
2163 set_method_param_type(unop_tp_u, 0, tp_u);
2164 set_method_param_type(unop_tp_u, 1, tp_u);
2165 set_method_res_type(unop_tp_u, 0, tp_u);
2166 set_method_res_type(unop_tp_u, 1, tp_u);
2169 unop_tp_s = new_type_method(IDENT("unop_s_intrinsic"), 2, 2);
2170 set_method_param_type(unop_tp_s, 0, tp_s);
2171 set_method_param_type(unop_tp_s, 1, tp_s);
2172 set_method_res_type(unop_tp_s, 0, tp_s);
2173 set_method_res_type(unop_tp_s, 1, tp_s);
2176 lenv.tv_mode_bytes = new_tarval_from_long(get_mode_size_bytes(param->low_unsigned), mode_Iu);
2177 lenv.tv_mode_bits = new_tarval_from_long(get_mode_size_bits(param->low_unsigned), mode_Iu);
2178 lenv.waitq = new_pdeq();
2179 lenv.params = param;
2181 /* first clear the generic function pointer for all ops */
2182 clear_irp_opcodes_generic_func();
2184 #define LOWER2(op, fkt) op_##op->ops.generic = (op_func)fkt
2185 #define LOWER(op) LOWER2(op, lower_##op)
2186 #define LOWER_BIN(op) LOWER2(op, lower_Binop)
2187 #define LOWER_UN(op) LOWER2(op, lower_Unop)
2223 /* transform all graphs */
2224 rem = current_ir_graph;
2225 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2226 ir_graph *irg = get_irp_irg(i);
2229 obstack_init(&lenv.obst);
2231 n_idx = get_irg_last_idx(irg);
2232 lenv.n_entries = n_idx;
2233 lenv.entries = xmalloc(n_idx * sizeof(lenv.entries[0]));
2234 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2236 /* first step: link all nodes and allocate data */
2238 lenv.proj_2_block = pmap_create();
2239 irg_walk_graph(irg, firm_clear_link, prepare_links, &lenv);
2241 if (lenv.flags & MUST_BE_LOWERED) {
2242 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2244 /* must do some work */
2245 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2247 /* last step: all waiting nodes */
2248 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2249 current_ir_graph = irg;
2250 while (! pdeq_empty(lenv.waitq)) {
2251 ir_node *node = pdeq_getl(lenv.waitq);
2253 lower_ops(node, &lenv);
2256 /* outs are invalid, we changed the graph */
2257 set_irg_outs_inconsistent(irg);
2259 if (lenv.flags & CF_CHANGED) {
2260 /* control flow changed, dominance info is invalid */
2261 set_irg_doms_inconsistent(irg);
2262 set_irg_extblk_inconsistent(irg);
2263 set_irg_loopinfo_inconsistent(irg);
2266 dump_ir_block_graph(irg, "-dw");
2268 pmap_destroy(lenv.proj_2_block);
2270 obstack_free(&lenv.obst, NULL);
2272 del_pdeq(lenv.waitq);
2273 current_ir_graph = rem;
2274 } /* lower_dw_ops */
2276 /* Default implementation. */
2277 entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2278 const ir_mode *imode, const ir_mode *omode,
2286 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2288 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2289 get_mode_name(imode), get_mode_name(omode));
2290 id = new_id_from_str(buf);
2292 ent = new_entity(get_glob_type(), id, method);
2293 set_entity_ld_ident(ent, get_entity_ident(ent));
2294 set_entity_visibility(ent, visibility_external_allocated);
2296 } /* def_create_intrinsic_fkt */