2 * Copyright (C) 1995-2010 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Lower Double word operations, ie 64bit -> 32bit, 32bit -> 16bit etc.
24 * @author Michael Beck
37 #include "irgraph_t.h"
42 #include "dbginfo_t.h"
43 #include "iropt_dbg.h"
58 typedef struct lower_env_t lower_env_t;
61 * The type of a lower function.
63 * @param node the node to be lowered
64 * @param env the lower environment
66 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
68 /** A map from (op, imode, omode) to Intrinsic functions entities. */
69 static set *intrinsic_fkt;
71 /** A map from (imode, omode) to conv function types. */
72 static set *conv_types;
74 /** A map from a method type to its lowered type. */
75 static pmap *lowered_type;
77 /** The types for the binop and unop intrinsics. */
78 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;
80 /** the debug handle */
81 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
84 * An entry in the (op, imode, omode) -> entity map.
86 typedef struct op_mode_entry {
87 const ir_op *op; /**< the op */
88 const ir_mode *imode; /**< the input mode */
89 const ir_mode *omode; /**< the output mode */
90 ir_entity *ent; /**< the associated entity of this (op, imode, omode) triple */
94 * An entry in the (imode, omode) -> tp map.
96 typedef struct conv_tp_entry {
97 const ir_mode *imode; /**< the input mode */
98 const ir_mode *omode; /**< the output mode */
99 ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
103 * Every double word node will be replaced,
104 * we need some store to hold the replacement:
106 typedef struct node_entry_t {
107 ir_node *low_word; /**< the low word */
108 ir_node *high_word; /**< the high word */
112 MUST_BE_LOWERED = 1, /**< graph must be lowered */
113 CF_CHANGED = 2, /**< control flow was changed */
117 * The lower environment.
120 node_entry_t **entries; /**< entries per node */
122 struct obstack obst; /**< an obstack holding the temporary data */
123 ir_type *l_mtp; /**< lowered method type of the current method */
124 ir_tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
125 ir_tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
126 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
127 ir_node **lowered_phis; /**< list of lowered phis */
128 pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
129 ir_mode *high_signed; /**< doubleword signed type */
130 ir_mode *high_unsigned; /**< doubleword unsigned type */
131 ir_mode *low_signed; /**< word signed type */
132 ir_mode *low_unsigned; /**< word unsigned type */
133 ident *first_id; /**< .l for little and .h for big endian */
134 ident *next_id; /**< .h for little and .l for big endian */
135 const lwrdw_param_t *params; /**< transformation parameter */
136 unsigned flags; /**< some flags */
137 unsigned n_entries; /**< number of entries */
138 ir_type *value_param_tp; /**< the old value param type */
142 * Create a method type for a Conv emulation from imode to omode.
144 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env)
146 conv_tp_entry_t key, *entry;
153 entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
155 int n_param = 1, n_res = 1;
157 if (imode == env->high_signed || imode == env->high_unsigned)
159 if (omode == env->high_signed || omode == env->high_unsigned)
162 /* create a new one */
163 mtd = new_type_method(n_param, n_res);
165 /* set param types and result types */
167 if (imode == env->high_signed) {
168 set_method_param_type(mtd, n_param++, tp_u);
169 set_method_param_type(mtd, n_param++, tp_s);
170 } else if (imode == env->high_unsigned) {
171 set_method_param_type(mtd, n_param++, tp_u);
172 set_method_param_type(mtd, n_param++, tp_u);
174 ir_type *tp = get_type_for_mode(imode);
175 set_method_param_type(mtd, n_param++, tp);
179 if (omode == env->high_signed) {
180 set_method_res_type(mtd, n_res++, tp_u);
181 set_method_res_type(mtd, n_res++, tp_s);
182 } else if (omode == env->high_unsigned) {
183 set_method_res_type(mtd, n_res++, tp_u);
184 set_method_res_type(mtd, n_res++, tp_u);
186 ir_type *tp = get_type_for_mode(omode);
187 set_method_res_type(mtd, n_res++, tp);
197 * Add an additional control flow input to a block.
198 * Patch all Phi nodes. The new Phi inputs are copied from
199 * old input number nr.
201 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
203 int i, arity = get_irn_arity(block);
208 NEW_ARR_A(ir_node *, in, arity + 1);
209 for (i = 0; i < arity; ++i)
210 in[i] = get_irn_n(block, i);
213 set_irn_in(block, i + 1, in);
215 for (phi = get_Block_phis(block); phi != NULL; phi = get_Phi_next(phi)) {
216 for (i = 0; i < arity; ++i)
217 in[i] = get_irn_n(phi, i);
219 set_irn_in(phi, i + 1, in);
224 * Add an additional control flow input to a block.
225 * Patch all Phi nodes. The new Phi inputs are copied from
226 * old input from cf tmpl.
228 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
230 int i, arity = get_irn_arity(block);
233 for (i = 0; i < arity; ++i) {
234 if (get_irn_n(block, i) == tmpl) {
240 add_block_cf_input_nr(block, nr, cf);
244 * Return the "operational" mode of a Firm node.
246 static ir_mode *get_irn_op_mode(ir_node *node)
248 switch (get_irn_opcode(node)) {
250 return get_Load_mode(node);
252 return get_irn_mode(get_Store_value(node));
254 return get_irn_mode(get_DivMod_left(node));
256 return get_irn_mode(get_Div_left(node));
258 return get_irn_mode(get_Mod_left(node));
260 return get_irn_mode(get_Cmp_left(node));
262 return get_irn_mode(node);
267 * Walker, prepare the node links and determine which nodes need to be lowered
270 static void prepare_links(lower_env_t *env, ir_node *node)
272 ir_mode *mode = get_irn_op_mode(node);
276 if (mode == env->high_signed || mode == env->high_unsigned) {
277 unsigned idx = get_irn_idx(node);
278 /* ok, found a node that will be lowered */
279 link = OALLOCZ(&env->obst, node_entry_t);
281 if (idx >= env->n_entries) {
282 /* enlarge: this happens only for Rotl nodes which is RARELY */
283 unsigned old = env->n_entries;
284 unsigned n_idx = idx + (idx >> 3);
286 ARR_RESIZE(node_entry_t *, env->entries, n_idx);
287 memset(&env->entries[old], 0, (n_idx - old) * sizeof(env->entries[0]));
288 env->n_entries = n_idx;
290 env->entries[idx] = link;
291 env->flags |= MUST_BE_LOWERED;
292 } else if (is_Conv(node)) {
293 /* Conv nodes have two modes */
294 ir_node *pred = get_Conv_op(node);
295 mode = get_irn_mode(pred);
297 if (mode == env->high_signed || mode == env->high_unsigned) {
298 /* must lower this node either but don't need a link */
299 env->flags |= MUST_BE_LOWERED;
305 /* link all Proj nodes to its predecessor:
306 Note that Tuple Proj's and its Projs are linked either. */
307 ir_node *pred = get_Proj_pred(node);
309 set_irn_link(node, get_irn_link(pred));
310 set_irn_link(pred, node);
311 } else if (is_Phi(node)) {
312 /* link all Phi nodes to its block */
313 ir_node *block = get_nodes_block(node);
314 add_Block_phi(block, node);
315 } else if (is_Block(node)) {
316 /* fill the Proj -> Block map */
317 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
318 ir_node *pred = get_Block_cfgpred(node, i);
321 pmap_insert(env->proj_2_block, pred, node);
326 static node_entry_t *get_node_entry(lower_env_t *env, ir_node *node)
328 unsigned idx = get_irn_idx(node);
329 assert(idx < env->n_entries);
330 return env->entries[idx];
333 static void set_lowered(lower_env_t *env, ir_node *old,
334 ir_node *new_low, ir_node *new_high)
336 node_entry_t *entry = get_node_entry(env, old);
337 entry->low_word = new_low;
338 entry->high_word = new_high;
342 * Translate a Constant: create two.
344 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env)
346 ir_graph *irg = get_irn_irg(node);
347 dbg_info *dbg = get_irn_dbg_info(node);
348 ir_mode *low_mode = env->low_unsigned;
349 ir_tarval *tv = get_Const_tarval(node);
350 ir_tarval *tv_l = tarval_convert_to(tv, low_mode);
351 ir_node *res_low = new_rd_Const(dbg, irg, tv_l);
352 ir_tarval *tv_shrs = tarval_shrs(tv, env->tv_mode_bits);
353 ir_tarval *tv_h = tarval_convert_to(tv_shrs, mode);
354 ir_node *res_high = new_rd_Const(dbg, irg, tv_h);
356 set_lowered(env, node, res_low, res_high);
360 * Translate a Load: create two.
362 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env)
364 ir_mode *low_mode = env->low_unsigned;
365 ir_graph *irg = get_irn_irg(node);
366 ir_node *adr = get_Load_ptr(node);
367 ir_node *mem = get_Load_mem(node);
368 ir_node *low, *high, *proj;
370 ir_node *block = get_nodes_block(node);
371 ir_cons_flags volatility = get_Load_volatility(node) == volatility_is_volatile
374 if (env->params->little_endian) {
376 high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
378 low = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
382 /* create two loads */
383 dbg = get_irn_dbg_info(node);
384 low = new_rd_Load(dbg, block, mem, low, low_mode, volatility);
385 proj = new_r_Proj(low, mode_M, pn_Load_M);
386 high = new_rd_Load(dbg, block, proj, high, mode, volatility);
388 set_lowered(env, node, low, high);
390 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
391 switch (get_Proj_proj(proj)) {
392 case pn_Load_M: /* Memory result. */
393 /* put it to the second one */
394 set_Proj_pred(proj, high);
396 case pn_Load_X_except: /* Execution result if exception occurred. */
397 /* put it to the first one */
398 set_Proj_pred(proj, low);
400 case pn_Load_res: { /* Result of load operation. */
401 ir_node *res_low = new_r_Proj(low, low_mode, pn_Load_res);
402 ir_node *res_high = new_r_Proj(high, mode, pn_Load_res);
403 set_lowered(env, proj, res_low, res_high);
407 assert(0 && "unexpected Proj number");
409 /* mark this proj: we have handled it already, otherwise we might fall
410 * into out new nodes. */
411 mark_irn_visited(proj);
416 * Translate a Store: create two.
418 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env)
421 ir_node *block, *adr, *mem;
422 ir_node *low, *high, *proj;
424 ir_node *value = get_Store_value(node);
425 const node_entry_t *entry = get_node_entry(env, value);
426 ir_cons_flags volatility = get_Store_volatility(node) == volatility_is_volatile
432 if (! entry->low_word) {
433 /* not ready yet, wait */
434 pdeq_putr(env->waitq, node);
438 irg = get_irn_irg(node);
439 adr = get_Store_ptr(node);
440 mem = get_Store_mem(node);
441 block = get_nodes_block(node);
443 if (env->params->little_endian) {
445 high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
447 low = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
451 /* create two Stores */
452 dbg = get_irn_dbg_info(node);
453 low = new_rd_Store(dbg, block, mem, low, entry->low_word, volatility);
454 proj = new_r_Proj(low, mode_M, pn_Store_M);
455 high = new_rd_Store(dbg, block, proj, high, entry->high_word, volatility);
457 set_lowered(env, node, low, high);
459 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
460 switch (get_Proj_proj(proj)) {
461 case pn_Store_M: /* Memory result. */
462 /* put it to the second one */
463 set_Proj_pred(proj, high);
465 case pn_Store_X_except: /* Execution result if exception occurred. */
466 /* put it to the first one */
467 set_Proj_pred(proj, low);
470 assert(0 && "unexpected Proj number");
472 /* mark this proj: we have handled it already, otherwise we might fall into
474 mark_irn_visited(proj);
479 * Return a node containing the address of the intrinsic emulation function.
481 * @param method the method type of the emulation function
482 * @param op the emulated ir_op
483 * @param imode the input mode of the emulated opcode
484 * @param omode the output mode of the emulated opcode
485 * @param env the lower environment
487 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
488 ir_mode *imode, ir_mode *omode,
493 op_mode_entry_t key, *entry;
500 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
501 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
503 /* create a new one */
504 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
506 assert(ent && "Intrinsic creator must return an entity");
512 return new_r_SymConst(env->irg, mode_P_code, sym, symconst_addr_ent);
518 * Create an intrinsic Call.
520 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env)
522 ir_node *left = get_Div_left(node);
523 ir_node *right = get_Div_right(node);
524 const node_entry_t *left_entry = get_node_entry(env, left);
525 const node_entry_t *right_entry = get_node_entry(env, right);
526 ir_node *block = get_nodes_block(node);
527 dbg_info *dbgi = get_irn_dbg_info(node);
529 = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
530 ir_mode *opmode = get_irn_op_mode(node);
532 = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
534 left_entry->low_word, left_entry->high_word,
535 right_entry->low_word, right_entry->high_word };
537 = new_rd_Call(dbgi, block, get_Div_mem(node), addr, 4, in, mtp);
538 ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
541 set_irn_pinned(call, get_irn_pinned(node));
543 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
544 switch (get_Proj_proj(proj)) {
545 case pn_Div_M: /* Memory result. */
546 /* reroute to the call */
547 set_Proj_pred(proj, call);
548 set_Proj_proj(proj, pn_Call_M);
550 case pn_Div_X_except: /* Execution result if exception occurred. */
551 /* reroute to the call */
552 set_Proj_pred(proj, call);
553 set_Proj_proj(proj, pn_Call_X_except);
556 /* Result of computation. */
557 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
558 ir_node *res_high = new_r_Proj(resproj, mode, 1);
559 set_lowered(env, proj, res_low, res_high);
563 assert(0 && "unexpected Proj number");
565 /* mark this proj: we have handled it already, otherwise we might fall into
567 mark_irn_visited(proj);
574 * Create an intrinsic Call.
576 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env)
578 ir_node *left = get_Mod_left(node);
579 ir_node *right = get_Mod_right(node);
580 const node_entry_t *left_entry = get_node_entry(env, left);
581 const node_entry_t *right_entry = get_node_entry(env, right);
583 left_entry->low_word, left_entry->high_word,
584 right_entry->low_word, right_entry->high_word
586 dbg_info *dbgi = get_irn_dbg_info(node);
587 ir_node *block = get_nodes_block(node);
589 = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
590 ir_mode *opmode = get_irn_op_mode(node);
592 = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
594 = new_rd_Call(dbgi, block, get_Mod_mem(node), addr, 4, in, mtp);
595 ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
597 set_irn_pinned(call, get_irn_pinned(node));
599 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
600 switch (get_Proj_proj(proj)) {
601 case pn_Mod_M: /* Memory result. */
602 /* reroute to the call */
603 set_Proj_pred(proj, call);
604 set_Proj_proj(proj, pn_Call_M);
606 case pn_Mod_X_except: /* Execution result if exception occurred. */
607 /* reroute to the call */
608 set_Proj_pred(proj, call);
609 set_Proj_proj(proj, pn_Call_X_except);
612 /* Result of computation. */
613 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
614 ir_node *res_high = new_r_Proj(resproj, mode, 1);
615 set_lowered(env, proj, res_low, res_high);
619 assert(0 && "unexpected Proj number");
621 /* mark this proj: we have handled it already, otherwise we might fall
622 * into out new nodes. */
623 mark_irn_visited(proj);
627 static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env)
632 panic("DivMod is deprecated, no doubleword lowering");
638 * Create an intrinsic Call.
640 static void lower_binop(ir_node *node, ir_mode *mode, lower_env_t *env)
642 ir_node *left = get_binop_left(node);
643 ir_node *right = get_binop_right(node);
644 const node_entry_t *left_entry = get_node_entry(env, left);
645 const node_entry_t *right_entry = get_node_entry(env, right);
647 left_entry->low_word, left_entry->high_word,
648 right_entry->low_word, right_entry->high_word
650 dbg_info *dbgi = get_irn_dbg_info(node);
651 ir_node *block = get_nodes_block(node);
652 ir_graph *irg = get_irn_irg(block);
654 = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
656 = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
658 = new_rd_Call(dbgi, block, get_irg_no_mem(irg), addr, 4, in, mtp);
659 ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
660 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
661 ir_node *res_high = new_r_Proj(resproj, mode, 1);
662 set_irn_pinned(call, get_irn_pinned(node));
663 set_lowered(env, node, res_low, res_high);
667 * Translate a Shiftop.
669 * Create an intrinsic Call.
671 static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env)
673 ir_node *block = get_nodes_block(node);
674 ir_node *left = get_binop_left(node);
675 const node_entry_t *left_entry = get_node_entry(env, left);
676 ir_node *right = get_binop_right(node);
678 left_entry->low_word, left_entry->high_word,
679 /* it should be safe to conv to low_unsigned */
680 new_r_Conv(block, right, env->low_unsigned)
682 dbg_info *dbgi = get_irn_dbg_info(node);
683 ir_graph *irg = get_irn_irg(block);
685 = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
687 = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
689 = new_rd_Call(dbgi, block, get_irg_no_mem(irg), addr, 3, in, mtp);
690 ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
691 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
692 ir_node *res_high = new_r_Proj(resproj, mode, 1);
694 set_irn_pinned(call, get_irn_pinned(node));
695 set_lowered(env, node, res_low, res_high);
699 * Translate a Shr and handle special cases.
701 static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env)
703 ir_graph *irg = get_irn_irg(node);
704 ir_node *right = get_Shr_right(node);
706 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
707 ir_tarval *tv = get_Const_tarval(right);
709 if (tarval_is_long(tv) &&
710 get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
711 ir_node *block = get_nodes_block(node);
712 ir_node *left = get_Shr_left(node);
713 ir_mode *low_unsigned = env->low_unsigned;
714 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
715 const node_entry_t *left_entry = get_node_entry(env, left);
719 left = left_entry->high_word;
721 /* convert high word into low_unsigned mode if necessary */
722 if (get_irn_mode(left) != low_unsigned)
723 left = new_r_Conv(block, left, low_unsigned);
726 ir_node *c = new_r_Const_long(irg, low_unsigned, shf_cnt);
727 res_low = new_r_Shr(block, left, c, low_unsigned);
731 res_high = new_r_Const(irg, get_mode_null(mode));
732 set_lowered(env, node, res_low, res_high);
737 lower_Shiftop(node, mode, env);
741 * Translate a Shl and handle special cases.
743 static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env)
745 ir_graph *irg = get_irn_irg(node);
746 ir_node *right = get_Shl_right(node);
748 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
749 ir_tarval *tv = get_Const_tarval(right);
751 if (tarval_is_long(tv)) {
752 long value = get_tarval_long(tv);
753 if (value >= (long)get_mode_size_bits(mode)) {
754 /* simple case: shift above the lower word */
756 ir_node *block = get_nodes_block(node);
757 ir_node *left = get_Shl_left(node);
759 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
760 const node_entry_t *left_entry = get_node_entry(env, left);
764 left = left_entry->low_word;
765 left = new_r_Conv(block, left, mode);
767 mode_l = env->low_unsigned;
769 c = new_r_Const_long(irg, mode_l, shf_cnt);
770 res_high = new_r_Shl(block, left, c, mode);
774 res_low = new_r_Const(irg, get_mode_null(mode_l));
775 set_lowered(env, node, res_low, res_high);
780 /* left << 1 == left + left */
781 ir_node *left = get_binop_left(node);
782 const node_entry_t *left_entry = get_node_entry(env, left);
784 left_entry->low_word, left_entry->high_word,
785 left_entry->low_word, left_entry->high_word,
787 dbg_info *dbgi = get_irn_dbg_info(node);
788 ir_node *block = get_nodes_block(node);
789 ir_graph *irg = get_irn_irg(block);
791 = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
793 = get_intrinsic_address(mtp, op_Add, mode, mode, env);
795 = new_rd_Call(dbgi, block, get_irg_no_mem(irg), addr, 4, in, mtp);
796 ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
797 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
798 ir_node *res_high = new_r_Proj(resproj, mode, 1);
799 set_irn_pinned(call, get_irn_pinned(node));
800 set_lowered(env, node, res_low, res_high);
806 lower_Shiftop(node, mode, env);
810 * Translate a Shrs and handle special cases.
812 static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env)
814 ir_graph *irg = get_irn_irg(node);
815 ir_node *right = get_Shrs_right(node);
817 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
818 ir_tarval *tv = get_Const_tarval(right);
820 if (tarval_is_long(tv) &&
821 get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
822 ir_node *block = get_nodes_block(node);
823 ir_node *left = get_Shrs_left(node);
824 ir_mode *low_unsigned = env->low_unsigned;
825 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
826 const node_entry_t *left_entry = get_node_entry(env, left);
827 ir_node *left_unsigned = left;
832 left = left_entry->high_word;
834 /* convert high word into low_unsigned mode if necessary */
835 if (get_irn_mode(left_unsigned) != low_unsigned)
836 left_unsigned = new_r_Conv(block, left, low_unsigned);
839 c = new_r_Const_long(irg, low_unsigned, shf_cnt);
840 res_low = new_r_Shrs(block, left_unsigned, c, low_unsigned);
842 res_low = left_unsigned;
845 c = new_r_Const(irg, get_mode_all_one(low_unsigned));
846 res_high = new_r_Shrs(block, left, c, mode);
847 set_lowered(env, node, res_low, res_high);
851 lower_Shiftop(node, mode, env);
855 * Rebuild Rotl nodes into Or(Shl, Shr) and prepare all nodes.
857 static void prepare_links_and_handle_rotl(ir_node *node, void *env)
859 lower_env_t *lenv = env;
862 ir_mode *mode = get_irn_op_mode(node);
864 ir_node *left, *shl, *shr, *or, *block, *sub, *c;
865 ir_mode *omode, *rmode;
868 optimization_state_t state;
870 if (mode != lenv->high_signed && mode != lenv->high_unsigned) {
871 prepare_links(lenv, node);
875 /* replace the Rotl(x,y) by an Or(Shl(x,y), Shr(x,64-y)) */
876 right = get_Rotl_right(node);
877 irg = get_irn_irg(node);
878 dbg = get_irn_dbg_info(node);
879 omode = get_irn_mode(node);
880 left = get_Rotl_left(node);
881 block = get_nodes_block(node);
882 shl = new_rd_Shl(dbg, block, left, right, omode);
883 rmode = get_irn_mode(right);
884 c = new_r_Const_long(irg, rmode, get_mode_size_bits(omode));
885 sub = new_rd_Sub(dbg, block, c, right, rmode);
886 shr = new_rd_Shr(dbg, block, left, sub, omode);
888 /* switch optimization off here, or we will get the Rotl back */
889 save_optimization_state(&state);
890 set_opt_algebraic_simplification(0);
891 or = new_rd_Or(dbg, block, shl, shr, omode);
892 restore_optimization_state(&state);
896 /* do lowering on the new nodes */
897 prepare_links(lenv, shl);
898 prepare_links(lenv, c);
899 prepare_links(lenv, sub);
900 prepare_links(lenv, shr);
901 prepare_links(lenv, or);
905 prepare_links(lenv, node);
911 * Create an intrinsic Call.
913 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env)
915 ir_node *op = get_unop_op(node);
916 const node_entry_t *op_entry = get_node_entry(env, op);
917 ir_node *in[2] = { op_entry->low_word, op_entry->high_word };
918 dbg_info *dbgi = get_irn_dbg_info(node);
919 ir_node *block = get_nodes_block(node);
920 ir_graph *irg = get_irn_irg(block);
921 ir_type *mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
922 ir_op *irop = get_irn_op(node);
923 ir_node *addr = get_intrinsic_address(mtp, irop, mode, mode, env);
924 ir_node *nomem = get_irg_no_mem(irg);
925 ir_node *call = new_rd_Call(dbgi, block, nomem, addr, 2, in, mtp);
926 ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
927 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
928 ir_node *res_high = new_r_Proj(resproj, mode, 1);
929 set_irn_pinned(call, get_irn_pinned(node));
930 set_lowered(env, node, res_low, res_high);
934 * Translate a logical binop.
936 * Create two logical binops.
938 static void lower_binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
939 ir_node *(*constr_rd)(dbg_info *db, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) )
941 ir_node *left = get_binop_left(node);
942 ir_node *right = get_binop_right(node);
943 const node_entry_t *left_entry = get_node_entry(env, left);
944 const node_entry_t *right_entry = get_node_entry(env, right);
945 dbg_info *dbgi = get_irn_dbg_info(node);
946 ir_node *block = get_nodes_block(node);
948 = constr_rd(dbgi, block, left_entry->low_word, right_entry->low_word,
951 = constr_rd(dbgi, block, left_entry->high_word, right_entry->high_word,
953 set_lowered(env, node, res_low, res_high);
956 static void lower_And(ir_node *node, ir_mode *mode, lower_env_t *env)
958 lower_binop_logical(node, mode, env, new_rd_And);
961 static void lower_Or(ir_node *node, ir_mode *mode, lower_env_t *env)
963 lower_binop_logical(node, mode, env, new_rd_Or);
966 static void lower_Eor(ir_node *node, ir_mode *mode, lower_env_t *env)
968 lower_binop_logical(node, mode, env, new_rd_Eor);
974 * Create two logical Nots.
976 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env)
978 ir_node *op = get_Not_op(node);
979 const node_entry_t *op_entry = get_node_entry(env, op);
980 dbg_info *dbgi = get_irn_dbg_info(node);
981 ir_node *block = get_nodes_block(node);
983 = new_rd_Not(dbgi, block, op_entry->low_word, env->low_unsigned);
985 = new_rd_Not(dbgi, block, op_entry->high_word, mode);
986 set_lowered(env, node, res_low, res_high);
992 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env)
994 ir_node *cmp, *left, *right, *block;
995 ir_node *sel = get_Cond_selector(node);
996 ir_mode *m = get_irn_mode(sel);
998 const node_entry_t *lentry, *rentry;
999 ir_node *proj, *projT = NULL, *projF = NULL;
1000 ir_node *new_bl, *cmpH, *cmpL, *irn;
1001 ir_node *projHF, *projHT;
1010 if (m == env->high_signed || m == env->high_unsigned) {
1011 /* bad we can't really handle Switch with 64bit offsets */
1012 panic("Cond with 64bit jumptable not supported");
1020 cmp = get_Proj_pred(sel);
1024 left = get_Cmp_left(cmp);
1025 cmp_mode = get_irn_mode(left);
1026 if (cmp_mode != env->high_signed && cmp_mode != env->high_unsigned)
1029 right = get_Cmp_right(cmp);
1030 lentry = get_node_entry(env, left);
1031 rentry = get_node_entry(env, right);
1033 /* all right, build the code */
1034 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1035 long proj_nr = get_Proj_proj(proj);
1037 if (proj_nr == pn_Cond_true) {
1038 assert(projT == NULL && "more than one Proj(true)");
1041 assert(proj_nr == pn_Cond_false);
1042 assert(projF == NULL && "more than one Proj(false)");
1045 mark_irn_visited(proj);
1047 assert(projT && projF);
1049 /* create a new high compare */
1050 block = get_nodes_block(node);
1051 irg = get_Block_irg(block);
1052 dbg = get_irn_dbg_info(cmp);
1053 pnc = get_Proj_proj(sel);
1055 if (is_Const(right) && is_Const_null(right)) {
1056 if (pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) {
1057 /* x ==/!= 0 ==> or(low,high) ==/!= 0 */
1058 ir_mode *mode = env->low_unsigned;
1059 ir_node *low = new_r_Conv(block, lentry->low_word, mode);
1060 ir_node *high = new_r_Conv(block, lentry->high_word, mode);
1061 ir_node *or = new_rd_Or(dbg, block, low, high, mode);
1062 ir_node *cmp = new_rd_Cmp(dbg, block, or, new_r_Const_long(irg, mode, 0));
1064 ir_node *proj = new_r_Proj(cmp, mode_b, pnc);
1065 set_Cond_selector(node, proj);
1070 cmpH = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word);
1072 if (pnc == pn_Cmp_Eq) {
1073 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1074 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1077 dst_blk = entry->value;
1079 irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
1080 dbg = get_irn_dbg_info(node);
1081 irn = new_rd_Cond(dbg, block, irn);
1083 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1084 mark_irn_visited(projHF);
1085 exchange(projF, projHF);
1087 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1088 mark_irn_visited(projHT);
1090 new_bl = new_r_Block(irg, 1, &projHT);
1092 dbg = get_irn_dbg_info(cmp);
1093 cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
1094 irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Eq);
1095 dbg = get_irn_dbg_info(node);
1096 irn = new_rd_Cond(dbg, new_bl, irn);
1098 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1099 mark_irn_visited(proj);
1100 add_block_cf_input(dst_blk, projHF, proj);
1102 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1103 mark_irn_visited(proj);
1104 exchange(projT, proj);
1105 } else if (pnc == pn_Cmp_Lg) {
1106 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1107 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1110 dst_blk = entry->value;
1112 irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Lg);
1113 dbg = get_irn_dbg_info(node);
1114 irn = new_rd_Cond(dbg, block, irn);
1116 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1117 mark_irn_visited(projHT);
1118 exchange(projT, projHT);
1120 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1121 mark_irn_visited(projHF);
1123 new_bl = new_r_Block(irg, 1, &projHF);
1125 dbg = get_irn_dbg_info(cmp);
1126 cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
1127 irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Lg);
1128 dbg = get_irn_dbg_info(node);
1129 irn = new_rd_Cond(dbg, new_bl, irn);
1131 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1132 mark_irn_visited(proj);
1133 add_block_cf_input(dst_blk, projHT, proj);
1135 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1136 mark_irn_visited(proj);
1137 exchange(projF, proj);
1139 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
1140 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1143 entry = pmap_find(env->proj_2_block, projT);
1145 dstT = entry->value;
1147 entry = pmap_find(env->proj_2_block, projF);
1149 dstF = entry->value;
1151 irn = new_r_Proj(cmpH, mode_b, pnc & ~pn_Cmp_Eq);
1152 dbg = get_irn_dbg_info(node);
1153 irn = new_rd_Cond(dbg, block, irn);
1155 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1156 mark_irn_visited(projHT);
1157 exchange(projT, projHT);
1160 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1161 mark_irn_visited(projHF);
1163 newbl_eq = new_r_Block(irg, 1, &projHF);
1165 irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
1166 irn = new_rd_Cond(dbg, newbl_eq, irn);
1168 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1169 mark_irn_visited(proj);
1170 exchange(projF, proj);
1173 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1174 mark_irn_visited(proj);
1176 newbl_l = new_r_Block(irg, 1, &proj);
1178 dbg = get_irn_dbg_info(cmp);
1179 cmpL = new_rd_Cmp(dbg, newbl_l, lentry->low_word, rentry->low_word);
1180 irn = new_r_Proj(cmpL, mode_b, pnc);
1181 dbg = get_irn_dbg_info(node);
1182 irn = new_rd_Cond(dbg, newbl_l, irn);
1184 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1185 mark_irn_visited(proj);
1186 add_block_cf_input(dstT, projT, proj);
1188 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1189 mark_irn_visited(proj);
1190 add_block_cf_input(dstF, projF, proj);
1193 /* we have changed the control flow */
1194 env->flags |= CF_CHANGED;
1198 * Translate a Conv to higher_signed
1200 static void lower_Conv_to_Ll(ir_node *node, lower_env_t *env)
1202 ir_mode *omode = get_irn_mode(node);
1203 ir_node *op = get_Conv_op(node);
1204 ir_mode *imode = get_irn_mode(op);
1205 ir_graph *irg = get_irn_irg(node);
1206 ir_node *block = get_nodes_block(node);
1207 dbg_info *dbg = get_irn_dbg_info(node);
1211 ir_mode *low_unsigned = env->low_unsigned;
1213 = mode_is_signed(omode) ? env->low_signed : low_unsigned;
1215 if (mode_is_int(imode) || mode_is_reference(imode)) {
1216 if (imode == env->high_signed || imode == env->high_unsigned) {
1217 /* a Conv from Lu to Ls or Ls to Lu */
1218 const node_entry_t *op_entry = get_node_entry(env, op);
1219 res_low = op_entry->low_word;
1220 res_high = new_rd_Conv(dbg, block, op_entry->high_word, low_signed);
1222 /* simple case: create a high word */
1223 if (imode != low_unsigned)
1224 op = new_rd_Conv(dbg, block, op, low_unsigned);
1228 if (mode_is_signed(imode)) {
1229 int c = get_mode_size_bits(low_signed) - 1;
1230 ir_node *cnst = new_r_Const_long(irg, low_unsigned, c);
1231 if (get_irn_mode(op) != low_signed)
1232 op = new_rd_Conv(dbg, block, op, low_signed);
1233 res_high = new_rd_Shrs(dbg, block, op, cnst, low_signed);
1235 res_high = new_r_Const(irg, get_mode_null(low_signed));
1238 } else if (imode == mode_b) {
1239 res_low = new_rd_Conv(dbg, block, op, low_unsigned);
1240 res_high = new_r_Const(irg, get_mode_null(low_signed));
1242 ir_node *irn, *call;
1243 ir_type *mtp = get_conv_type(imode, omode, env);
1245 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, env);
1246 call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1247 set_irn_pinned(call, get_irn_pinned(node));
1248 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
1250 res_low = new_r_Proj(irn, low_unsigned, 0);
1251 res_high = new_r_Proj(irn, low_signed, 1);
1253 set_lowered(env, node, res_low, res_high);
1257 * Translate a Conv from higher_unsigned
1259 static void lower_Conv_from_Ll(ir_node *node, lower_env_t *env)
1261 ir_node *op = get_Conv_op(node);
1262 ir_mode *omode = get_irn_mode(node);
1263 ir_node *block = get_nodes_block(node);
1264 dbg_info *dbg = get_irn_dbg_info(node);
1265 ir_graph *irg = get_irn_irg(node);
1266 const node_entry_t *entry = get_node_entry(env, op);
1268 if (mode_is_int(omode) || mode_is_reference(omode)) {
1269 op = entry->low_word;
1271 /* simple case: create a high word */
1272 if (omode != env->low_unsigned)
1273 op = new_rd_Conv(dbg, block, op, omode);
1275 set_Conv_op(node, op);
1276 } else if (omode == mode_b) {
1277 /* llu ? true : false <=> (low|high) ? true : false */
1278 ir_mode *mode = env->low_unsigned;
1279 ir_node *or = new_rd_Or(dbg, block, entry->low_word, entry->high_word,
1281 set_Conv_op(node, or);
1283 ir_node *irn, *call, *in[2];
1284 ir_mode *imode = get_irn_mode(op);
1285 ir_type *mtp = get_conv_type(imode, omode, env);
1287 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, env);
1288 in[0] = entry->low_word;
1289 in[1] = entry->high_word;
1291 call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1292 set_irn_pinned(call, get_irn_pinned(node));
1293 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
1295 exchange(node, new_r_Proj(irn, omode, 0));
1300 * lower boolean Proj(Cmp)
1302 static void lower_Proj_Cmp(lower_env_t *env, ir_node *proj)
1304 ir_node *cmp = get_Proj_pred(proj);
1305 ir_node *l = get_Cmp_left(cmp);
1306 ir_mode *mode = get_irn_mode(l);
1307 ir_node *r, *low, *high, *t, *res;
1311 const node_entry_t *lentry;
1312 const node_entry_t *rentry;
1314 if (mode != env->high_signed && mode != env->high_unsigned) {
1318 r = get_Cmp_right(cmp);
1319 lentry = get_node_entry(env, l);
1320 rentry = get_node_entry(env, r);
1321 pnc = get_Proj_proj(proj);
1322 blk = get_nodes_block(cmp);
1323 db = get_irn_dbg_info(cmp);
1324 low = new_rd_Cmp(db, blk, lentry->low_word, rentry->low_word);
1325 high = new_rd_Cmp(db, blk, lentry->high_word, rentry->high_word);
1327 if (pnc == pn_Cmp_Eq) {
1328 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1329 res = new_rd_And(db, blk,
1330 new_r_Proj(low, mode_b, pnc),
1331 new_r_Proj(high, mode_b, pnc),
1333 } else if (pnc == pn_Cmp_Lg) {
1334 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1335 res = new_rd_Or(db, blk,
1336 new_r_Proj(low, mode_b, pnc),
1337 new_r_Proj(high, mode_b, pnc),
1340 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
1341 t = new_rd_And(db, blk,
1342 new_r_Proj(low, mode_b, pnc),
1343 new_r_Proj(high, mode_b, pn_Cmp_Eq),
1345 res = new_rd_Or(db, blk,
1346 new_r_Proj(high, mode_b, pnc & ~pn_Cmp_Eq),
1350 exchange(proj, res);
1353 static void lower_Proj(ir_node *node, ir_mode *mode, lower_env_t *env)
1355 ir_node *pred = get_Proj_pred(node);
1358 lower_Proj_Cmp(env, node);
1365 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env)
1367 mode = get_irn_mode(node);
1369 if (mode == env->high_signed || mode == env->high_unsigned) {
1370 lower_Conv_to_Ll(node, env);
1372 ir_mode *op_mode = get_irn_mode(get_Conv_op(node));
1374 if (op_mode == env->high_signed || op_mode == env->high_unsigned) {
1375 lower_Conv_from_Ll(node, env);
1381 * Lower the method type.
1383 * @param env the lower environment
1384 * @param mtp the method type to lower
1386 * @return the lowered type
1388 static ir_type *lower_mtp(lower_env_t *env, ir_type *mtp)
1392 ir_type *res, *value_type;
1394 if (is_lowered_type(mtp))
1397 entry = pmap_find(lowered_type, mtp);
1399 int i, n, r, n_param, n_res;
1401 /* count new number of params */
1402 n_param = n = get_method_n_params(mtp);
1403 for (i = n_param - 1; i >= 0; --i) {
1404 ir_type *tp = get_method_param_type(mtp, i);
1406 if (is_Primitive_type(tp)) {
1407 ir_mode *mode = get_type_mode(tp);
1409 if (mode == env->high_signed ||
1410 mode == env->high_unsigned)
1415 /* count new number of results */
1416 n_res = r = get_method_n_ress(mtp);
1417 for (i = n_res - 1; i >= 0; --i) {
1418 ir_type *tp = get_method_res_type(mtp, i);
1420 if (is_Primitive_type(tp)) {
1421 ir_mode *mode = get_type_mode(tp);
1423 if (mode == env->high_signed ||
1424 mode == env->high_unsigned)
1429 res = new_type_method(n_param, n_res);
1431 /* set param types and result types */
1432 for (i = n_param = 0; i < n; ++i) {
1433 ir_type *tp = get_method_param_type(mtp, i);
1435 if (is_Primitive_type(tp)) {
1436 ir_mode *mode = get_type_mode(tp);
1438 if (mode == env->high_signed) {
1439 set_method_param_type(res, n_param++, tp_u);
1440 set_method_param_type(res, n_param++, tp_s);
1441 } else if (mode == env->high_unsigned) {
1442 set_method_param_type(res, n_param++, tp_u);
1443 set_method_param_type(res, n_param++, tp_u);
1445 set_method_param_type(res, n_param++, tp);
1448 set_method_param_type(res, n_param++, tp);
1451 for (i = n_res = 0; i < r; ++i) {
1452 ir_type *tp = get_method_res_type(mtp, i);
1454 if (is_Primitive_type(tp)) {
1455 ir_mode *mode = get_type_mode(tp);
1457 if (mode == env->high_signed) {
1458 set_method_res_type(res, n_res++, tp_u);
1459 set_method_res_type(res, n_res++, tp_s);
1460 } else if (mode == env->high_unsigned) {
1461 set_method_res_type(res, n_res++, tp_u);
1462 set_method_res_type(res, n_res++, tp_u);
1464 set_method_res_type(res, n_res++, tp);
1467 set_method_res_type(res, n_res++, tp);
1470 set_lowered_type(mtp, res);
1471 pmap_insert(lowered_type, mtp, res);
1473 value_type = get_method_value_param_type(mtp);
1474 if (value_type != NULL) {
1475 /* this creates a new value parameter type */
1476 (void)get_method_value_param_ent(res, 0);
1478 /* set new param positions */
1479 for (i = n_param = 0; i < n; ++i) {
1480 ir_type *tp = get_method_param_type(mtp, i);
1481 ident *id = get_method_param_ident(mtp, i);
1482 ir_entity *ent = get_method_value_param_ent(mtp, i);
1484 set_entity_link(ent, INT_TO_PTR(n_param));
1485 if (is_Primitive_type(tp)) {
1486 ir_mode *mode = get_type_mode(tp);
1488 if (mode == env->high_signed || mode == env->high_unsigned) {
1490 lid = id_mangle(id, env->first_id);
1491 set_method_param_ident(res, n_param, lid);
1492 set_entity_ident(get_method_value_param_ent(res, n_param), lid);
1493 lid = id_mangle(id, env->next_id);
1494 set_method_param_ident(res, n_param + 1, lid);
1495 set_entity_ident(get_method_value_param_ent(res, n_param + 1), lid);
1502 set_method_param_ident(res, n_param, id);
1503 set_entity_ident(get_method_value_param_ent(res, n_param), id);
1508 set_lowered_type(value_type, get_method_value_param_type(res));
1517 * Translate a Return.
1519 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env)
1521 ir_graph *irg = get_irn_irg(node);
1522 ir_entity *ent = get_irg_entity(irg);
1523 ir_type *mtp = get_entity_type(ent);
1529 /* check if this return must be lowered */
1530 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1531 ir_node *pred = get_Return_res(node, i);
1532 ir_mode *mode = get_irn_op_mode(pred);
1534 if (mode == env->high_signed || mode == env->high_unsigned)
1540 ent = get_irg_entity(irg);
1541 mtp = get_entity_type(ent);
1543 mtp = lower_mtp(env, mtp);
1544 set_entity_type(ent, mtp);
1546 /* create a new in array */
1547 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1548 in[0] = get_Return_mem(node);
1550 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1551 ir_node *pred = get_Return_res(node, i);
1552 ir_mode *pred_mode = get_irn_mode(pred);
1554 if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
1555 const node_entry_t *entry = get_node_entry(env, pred);
1556 in[++j] = entry->low_word;
1557 in[++j] = entry->high_word;
1563 set_irn_in(node, j+1, in);
1567 * Translate the parameters.
1569 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env)
1571 ir_graph *irg = get_irn_irg(node);
1572 ir_entity *ent = get_irg_entity(irg);
1573 ir_type *tp = get_entity_type(ent);
1576 int i, j, n_params, rem;
1577 ir_node *proj, *args;
1580 if (is_lowered_type(tp)) {
1581 mtp = get_associated_type(tp);
1585 assert(! is_lowered_type(mtp));
1587 n_params = get_method_n_params(mtp);
1591 NEW_ARR_A(long, new_projs, n_params);
1593 /* first check if we have parameters that must be fixed */
1594 for (i = j = 0; i < n_params; ++i, ++j) {
1595 ir_type *tp = get_method_param_type(mtp, i);
1598 if (is_Primitive_type(tp)) {
1599 ir_mode *mode = get_type_mode(tp);
1601 if (mode == env->high_signed ||
1602 mode == env->high_unsigned)
1609 mtp = lower_mtp(env, mtp);
1610 set_entity_type(ent, mtp);
1612 /* switch off optimization for new Proj nodes or they might be CSE'ed
1613 with not patched one's */
1614 rem = get_optimize();
1617 /* ok, fix all Proj's and create new ones */
1618 args = get_irg_args(irg);
1619 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1620 ir_node *pred = get_Proj_pred(proj);
1629 /* do not visit this node again */
1630 mark_irn_visited(proj);
1635 proj_nr = get_Proj_proj(proj);
1636 set_Proj_proj(proj, new_projs[proj_nr]);
1638 mode = get_irn_mode(proj);
1639 mode_l = env->low_unsigned;
1640 if (mode == env->high_signed) {
1641 mode_h = env->low_signed;
1642 } else if (mode == env->high_unsigned) {
1643 mode_h = env->low_unsigned;
1648 dbg = get_irn_dbg_info(proj);
1649 res_low = new_rd_Proj(dbg, args, mode_l, new_projs[proj_nr]);
1650 res_high = new_rd_Proj(dbg, args, mode_h, new_projs[proj_nr] + 1);
1651 set_lowered(env, proj, res_low, res_high);
1659 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env)
1661 ir_type *tp = get_Call_type(node);
1663 ir_node **in, *proj, *results;
1664 int n_params, n_res;
1665 bool need_lower = false;
1667 long *res_numbers = NULL;
1670 if (is_lowered_type(tp)) {
1671 call_tp = get_associated_type(tp);
1676 assert(! is_lowered_type(call_tp));
1678 n_params = get_method_n_params(call_tp);
1679 for (i = 0; i < n_params; ++i) {
1680 ir_type *tp = get_method_param_type(call_tp, i);
1682 if (is_Primitive_type(tp)) {
1683 ir_mode *mode = get_type_mode(tp);
1685 if (mode == env->high_signed || mode == env->high_unsigned) {
1691 n_res = get_method_n_ress(call_tp);
1693 NEW_ARR_A(long, res_numbers, n_res);
1695 for (i = j = 0; i < n_res; ++i, ++j) {
1696 ir_type *tp = get_method_res_type(call_tp, i);
1699 if (is_Primitive_type(tp)) {
1700 ir_mode *mode = get_type_mode(tp);
1702 if (mode == env->high_signed || mode == env->high_unsigned) {
1713 /* let's lower it */
1714 call_tp = lower_mtp(env, call_tp);
1715 set_Call_type(node, call_tp);
1717 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1719 in[0] = get_Call_mem(node);
1720 in[1] = get_Call_ptr(node);
1722 for (j = 2, i = 0; i < n_params; ++i) {
1723 ir_node *pred = get_Call_param(node, i);
1724 ir_mode *pred_mode = get_irn_mode(pred);
1726 if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
1727 const node_entry_t *pred_entry = get_node_entry(env, pred);
1728 in[j++] = pred_entry->low_word;
1729 in[j++] = pred_entry->high_word;
1735 set_irn_in(node, j, in);
1737 /* fix the results */
1739 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1740 long proj_nr = get_Proj_proj(proj);
1742 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1743 /* found the result proj */
1749 if (results != NULL) { /* there are results */
1750 int rem = get_optimize();
1752 /* switch off optimization for new Proj nodes or they might be CSE'ed
1753 with not patched one's */
1755 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1756 if (get_Proj_pred(proj) == results) {
1757 long proj_nr = get_Proj_proj(proj);
1758 ir_mode *proj_mode = get_irn_mode(proj);
1765 /* found a result */
1766 mark_irn_visited(proj);
1768 set_Proj_proj(proj, res_numbers[proj_nr]);
1770 mode_l = env->low_unsigned;
1771 if (proj_mode == env->high_signed) {
1772 mode_h = env->low_signed;
1773 } else if (proj_mode == env->high_unsigned) {
1774 mode_h = env->low_unsigned;
1779 dbg = get_irn_dbg_info(proj);
1780 res_low = new_rd_Proj(dbg, results, mode_l, res_numbers[proj_nr]);
1781 res_high = new_rd_Proj(dbg, results, mode_h, res_numbers[proj_nr] + 1);
1782 set_lowered(env, proj, res_low, res_high);
1790 * Translate an Unknown into two.
1792 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env)
1794 ir_mode *low_mode = env->low_unsigned;
1795 ir_graph *irg = get_irn_irg(node);
1796 ir_node *res_low = new_r_Unknown(irg, low_mode);
1797 ir_node *res_high = new_r_Unknown(irg, mode);
1798 set_lowered(env, node, res_low, res_high);
1804 * First step: just create two templates
1806 static void lower_Phi(lower_env_t *env, ir_node *phi)
1808 ir_mode *mode = get_irn_mode(phi);
1823 /* enqueue predecessors */
1824 arity = get_Phi_n_preds(phi);
1825 for (i = 0; i < arity; ++i) {
1826 ir_node *pred = get_Phi_pred(phi, i);
1827 pdeq_putr(env->waitq, pred);
1830 if (mode != env->high_signed && mode != env->high_unsigned)
1833 /* first create a new in array */
1834 NEW_ARR_A(ir_node *, in_l, arity);
1835 NEW_ARR_A(ir_node *, in_h, arity);
1836 irg = get_irn_irg(phi);
1837 mode_l = env->low_unsigned;
1838 mode_h = mode == env->high_signed ? env->low_signed : env->low_unsigned;
1839 unk_l = new_r_Dummy(irg, mode_l);
1840 unk_h = new_r_Dummy(irg, mode_h);
1841 for (i = 0; i < arity; ++i) {
1846 dbg = get_irn_dbg_info(phi);
1847 block = get_nodes_block(phi);
1848 phi_l = new_rd_Phi(dbg, block, arity, in_l, mode_l);
1849 phi_h = new_rd_Phi(dbg, block, arity, in_h, mode_h);
1851 set_lowered(env, phi, phi_l, phi_h);
1853 /* remember that we need to fixup the predecessors later */
1854 ARR_APP1(ir_node*, env->lowered_phis, phi);
1856 /* Don't forget to link the new Phi nodes into the block.
1857 * Beware that some Phis might be optimized away. */
1859 add_Block_phi(block, phi_l);
1861 add_Block_phi(block, phi_h);
1864 static void fixup_phi(lower_env_t *env, ir_node *phi)
1866 const node_entry_t *entry = get_node_entry(env, phi);
1867 ir_node *phi_l = entry->low_word;
1868 ir_node *phi_h = entry->high_word;
1869 int arity = get_Phi_n_preds(phi);
1872 /* exchange phi predecessors which are lowered by now */
1873 for (i = 0; i < arity; ++i) {
1874 ir_node *pred = get_Phi_pred(phi, i);
1875 const node_entry_t *pred_entry = get_node_entry(env, pred);
1877 set_Phi_pred(phi_l, i, pred_entry->low_word);
1878 set_Phi_pred(phi_h, i, pred_entry->high_word);
1885 static void lower_Mux(ir_node *mux, ir_mode *mode, lower_env_t *env)
1887 ir_node *truen = get_Mux_true(mux);
1888 ir_node *falsen = get_Mux_false(mux);
1889 ir_node *sel = get_Mux_sel(mux);
1890 const node_entry_t *true_entry = get_node_entry(env, truen);
1891 const node_entry_t *false_entry = get_node_entry(env, falsen);
1892 ir_node *true_l = true_entry->low_word;
1893 ir_node *true_h = true_entry->high_word;
1894 ir_node *false_l = false_entry->low_word;
1895 ir_node *false_h = false_entry->high_word;
1896 dbg_info *dbgi = get_irn_dbg_info(mux);
1897 ir_node *block = get_nodes_block(mux);
1899 = new_rd_Mux(dbgi, block, sel, false_l, true_l, env->low_unsigned);
1901 = new_rd_Mux(dbgi, block, sel, false_h, true_h, mode);
1902 set_lowered(env, mux, res_low, res_high);
1906 * Translate an ASM node.
1908 static void lower_ASM(ir_node *asmn, ir_mode *mode, lower_env_t *env)
1910 ir_mode *his = env->high_signed;
1911 ir_mode *hiu = env->high_unsigned;
1917 for (i = get_irn_arity(asmn) - 1; i >= 0; --i) {
1918 ir_mode *op_mode = get_irn_mode(get_irn_n(asmn, i));
1919 if (op_mode == his || op_mode == hiu) {
1920 panic("lowering ASM unimplemented");
1927 n = get_irn_link(n);
1931 proj_mode = get_irn_mode(n);
1932 if (proj_mode == his || proj_mode == hiu) {
1933 panic("lowering ASM unimplemented");
1939 * Translate a Sel node.
1941 static void lower_Sel(ir_node *sel, ir_mode *mode, lower_env_t *env)
1945 /* we must only lower value parameter Sels if we change the
1946 value parameter type. */
1947 if (env->value_param_tp != NULL) {
1948 ir_entity *ent = get_Sel_entity(sel);
1949 if (get_entity_owner(ent) == env->value_param_tp) {
1950 int pos = PTR_TO_INT(get_entity_link(ent));
1952 ent = get_method_value_param_ent(env->l_mtp, pos);
1953 set_Sel_entity(sel, ent);
1959 * check for opcodes that must always be lowered.
1961 static bool always_lower(ir_opcode code)
1979 * Compare two op_mode_entry_t's.
1981 static int cmp_op_mode(const void *elt, const void *key, size_t size)
1983 const op_mode_entry_t *e1 = elt;
1984 const op_mode_entry_t *e2 = key;
1987 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
1991 * Compare two conv_tp_entry_t's.
1993 static int cmp_conv_tp(const void *elt, const void *key, size_t size)
1995 const conv_tp_entry_t *e1 = elt;
1996 const conv_tp_entry_t *e2 = key;
1999 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
2003 * Enter a lowering function into an ir_op.
2005 static void enter_lower_func(ir_op *op, lower_func func)
2007 op->ops.generic = (op_func)func;
2011 * Returns non-zero if a method type must be lowered.
2013 * @param mtp the method type
2015 static bool mtp_must_be_lowered(lower_env_t *env, ir_type *mtp)
2017 int n_params = get_method_n_params(mtp);
2020 /* first check if we have parameters that must be fixed */
2021 for (i = 0; i < n_params; ++i) {
2022 ir_type *tp = get_method_param_type(mtp, i);
2024 if (is_Primitive_type(tp)) {
2025 ir_mode *mode = get_type_mode(tp);
2027 if (mode == env->high_signed ||
2028 mode == env->high_unsigned)
2035 /* Determine which modes need to be lowered */
2036 static void setup_modes(lower_env_t *env)
2038 unsigned size_bits = env->params->doubleword_size;
2039 ir_mode *doubleword_signed = NULL;
2040 ir_mode *doubleword_unsigned = NULL;
2041 int n_modes = get_irp_n_modes();
2042 ir_mode_arithmetic arithmetic;
2043 unsigned modulo_shift;
2046 /* search for doubleword modes... */
2047 for (i = 0; i < n_modes; ++i) {
2048 ir_mode *mode = get_irp_mode(i);
2049 if (!mode_is_int(mode))
2051 if (get_mode_size_bits(mode) != size_bits)
2053 if (mode_is_signed(mode)) {
2054 if (doubleword_signed != NULL) {
2055 /* sigh - the lowerer should really just lower all mode with
2056 * size_bits it finds. Unfortunately this required a bigger
2058 panic("multiple double word signed modes found");
2060 doubleword_signed = mode;
2062 if (doubleword_unsigned != NULL) {
2063 /* sigh - the lowerer should really just lower all mode with
2064 * size_bits it finds. Unfortunately this required a bigger
2066 panic("multiple double word unsigned modes found");
2068 doubleword_unsigned = mode;
2071 if (doubleword_signed == NULL || doubleword_unsigned == NULL) {
2072 panic("Couldn't find doubleword modes");
2075 arithmetic = get_mode_arithmetic(doubleword_signed);
2076 modulo_shift = get_mode_modulo_shift(doubleword_signed);
2078 assert(get_mode_size_bits(doubleword_unsigned) == size_bits);
2079 assert(size_bits % 2 == 0);
2080 assert(get_mode_sign(doubleword_signed) == 1);
2081 assert(get_mode_sign(doubleword_unsigned) == 0);
2082 assert(get_mode_sort(doubleword_signed) == irms_int_number);
2083 assert(get_mode_sort(doubleword_unsigned) == irms_int_number);
2084 assert(get_mode_arithmetic(doubleword_unsigned) == arithmetic);
2085 assert(get_mode_modulo_shift(doubleword_unsigned) == modulo_shift);
2087 /* try to guess a sensible modulo shift for the new mode.
2088 * (This is IMO another indication that this should really be a node
2089 * attribute instead of a mode thing) */
2090 if (modulo_shift == size_bits) {
2091 modulo_shift = modulo_shift / 2;
2092 } else if (modulo_shift == 0) {
2095 panic("Don't know what new modulo shift to use for lowered doubleword mode");
2099 /* produce lowered modes */
2100 env->high_signed = doubleword_signed;
2101 env->high_unsigned = doubleword_unsigned;
2102 env->low_signed = new_ir_mode("WS", irms_int_number, size_bits, 1,
2103 arithmetic, modulo_shift);
2104 env->low_unsigned = new_ir_mode("WU", irms_int_number, size_bits, 0,
2105 arithmetic, modulo_shift);
2108 static void enqueue_preds(lower_env_t *env, ir_node *node)
2110 int arity = get_irn_arity(node);
2113 for (i = 0; i < arity; ++i) {
2114 ir_node *pred = get_irn_n(node, i);
2115 pdeq_putr(env->waitq, pred);
2119 static void lower_node(lower_env_t *env, ir_node *node)
2127 node_entry_t *entry;
2129 if (irn_visited(node))
2131 mark_irn_visited(node);
2133 /* cycles are always broken at Phi and Block nodes. So we don't need special
2134 * magic in all the other lower functions */
2135 if (is_Block(node)) {
2136 enqueue_preds(env, node);
2138 } else if (is_Phi(node)) {
2139 lower_Phi(env, node);
2143 /* depth-first: descend into operands */
2144 if (!is_Block(node)) {
2145 ir_node *block = get_nodes_block(node);
2146 lower_node(env, block);
2149 arity = get_irn_arity(node);
2150 for (i = 0; i < arity; ++i) {
2151 ir_node *pred = get_irn_n(node, i);
2152 lower_node(env, pred);
2155 op = get_irn_op(node);
2156 func = (lower_func) op->ops.generic;
2160 idx = get_irn_idx(node);
2161 entry = idx < env->n_entries ? env->entries[idx] : NULL;
2162 if (entry != NULL || always_lower(get_irn_opcode(node))) {
2163 mode = get_irn_op_mode(node);
2164 if (mode == env->high_signed) {
2165 mode = env->low_signed;
2167 mode = env->low_unsigned;
2169 DB((dbg, LEVEL_1, " %+F\n", node));
2170 func(node, mode, env);
2174 static void lower_irg(lower_env_t *env, ir_graph *irg)
2180 obstack_init(&env->obst);
2182 n_idx = get_irg_last_idx(irg);
2183 n_idx = n_idx + (n_idx >> 2); /* add 25% */
2184 env->n_entries = n_idx;
2185 env->entries = NEW_ARR_F(node_entry_t*, n_idx);
2186 memset(env->entries, 0, sizeof(env->entries[0]) * n_idx);
2191 env->proj_2_block = pmap_create();
2192 env->value_param_tp = NULL;
2194 ent = get_irg_entity(irg);
2195 mtp = get_entity_type(ent);
2197 if (mtp_must_be_lowered(env, mtp)) {
2198 ir_type *ltp = lower_mtp(env, mtp);
2199 env->flags |= MUST_BE_LOWERED;
2200 set_entity_type(ent, ltp);
2202 env->value_param_tp = get_method_value_param_type(mtp);
2205 /* first step: link all nodes and allocate data */
2206 ir_reserve_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
2207 irg_walk_graph(irg, firm_clear_node_and_phi_links,
2208 prepare_links_and_handle_rotl, env);
2210 if (env->flags & MUST_BE_LOWERED) {
2212 ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
2213 inc_irg_visited(irg);
2215 assert(pdeq_empty(env->waitq));
2216 pdeq_putr(env->waitq, get_irg_end(irg));
2218 env->lowered_phis = NEW_ARR_F(ir_node*, 0);
2219 while (!pdeq_empty(env->waitq)) {
2220 ir_node *node = pdeq_getl(env->waitq);
2221 lower_node(env, node);
2224 /* we need to fixup phis */
2225 for (i = 0; i < ARR_LEN(env->lowered_phis); ++i) {
2226 ir_node *phi = env->lowered_phis[i];
2227 fixup_phi(env, phi);
2229 DEL_ARR_F(env->lowered_phis);
2232 ir_free_resources(irg, IR_RESOURCE_IRN_VISITED);
2234 /* outs are invalid, we changed the graph */
2235 set_irg_outs_inconsistent(irg);
2237 if (env->flags & CF_CHANGED) {
2238 /* control flow changed, dominance info is invalid */
2239 set_irg_doms_inconsistent(irg);
2240 set_irg_extblk_inconsistent(irg);
2241 set_irg_loopinfo_inconsistent(irg);
2245 ir_free_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
2247 pmap_destroy(env->proj_2_block);
2248 DEL_ARR_F(env->entries);
2249 obstack_free(&env->obst, NULL);
2255 void lower_dw_ops(const lwrdw_param_t *param)
2260 assert(param != NULL);
2261 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
2263 memset(&lenv, 0, sizeof(lenv));
2264 lenv.params = param;
2267 /* create the necessary maps */
2268 if (! intrinsic_fkt)
2269 intrinsic_fkt = new_set(cmp_op_mode, iro_Last + 1);
2271 conv_types = new_set(cmp_conv_tp, 16);
2273 lowered_type = pmap_create();
2275 /* create a primitive unsigned and signed type */
2277 tp_u = get_type_for_mode(lenv.low_unsigned);
2279 tp_s = get_type_for_mode(lenv.low_signed);
2281 /* create method types for the created binop calls */
2283 binop_tp_u = new_type_method(4, 2);
2284 set_method_param_type(binop_tp_u, 0, tp_u);
2285 set_method_param_type(binop_tp_u, 1, tp_u);
2286 set_method_param_type(binop_tp_u, 2, tp_u);
2287 set_method_param_type(binop_tp_u, 3, tp_u);
2288 set_method_res_type(binop_tp_u, 0, tp_u);
2289 set_method_res_type(binop_tp_u, 1, tp_u);
2292 binop_tp_s = new_type_method(4, 2);
2293 set_method_param_type(binop_tp_s, 0, tp_u);
2294 set_method_param_type(binop_tp_s, 1, tp_s);
2295 set_method_param_type(binop_tp_s, 2, tp_u);
2296 set_method_param_type(binop_tp_s, 3, tp_s);
2297 set_method_res_type(binop_tp_s, 0, tp_u);
2298 set_method_res_type(binop_tp_s, 1, tp_s);
2300 if (! shiftop_tp_u) {
2301 shiftop_tp_u = new_type_method(3, 2);
2302 set_method_param_type(shiftop_tp_u, 0, tp_u);
2303 set_method_param_type(shiftop_tp_u, 1, tp_u);
2304 set_method_param_type(shiftop_tp_u, 2, tp_u);
2305 set_method_res_type(shiftop_tp_u, 0, tp_u);
2306 set_method_res_type(shiftop_tp_u, 1, tp_u);
2308 if (! shiftop_tp_s) {
2309 shiftop_tp_s = new_type_method(3, 2);
2310 set_method_param_type(shiftop_tp_s, 0, tp_u);
2311 set_method_param_type(shiftop_tp_s, 1, tp_s);
2312 set_method_param_type(shiftop_tp_s, 2, tp_u);
2313 set_method_res_type(shiftop_tp_s, 0, tp_u);
2314 set_method_res_type(shiftop_tp_s, 1, tp_s);
2317 unop_tp_u = new_type_method(2, 2);
2318 set_method_param_type(unop_tp_u, 0, tp_u);
2319 set_method_param_type(unop_tp_u, 1, tp_u);
2320 set_method_res_type(unop_tp_u, 0, tp_u);
2321 set_method_res_type(unop_tp_u, 1, tp_u);
2324 unop_tp_s = new_type_method(2, 2);
2325 set_method_param_type(unop_tp_s, 0, tp_u);
2326 set_method_param_type(unop_tp_s, 1, tp_s);
2327 set_method_res_type(unop_tp_s, 0, tp_u);
2328 set_method_res_type(unop_tp_s, 1, tp_s);
2331 clear_irp_opcodes_generic_func();
2332 enter_lower_func(op_Add, lower_binop);
2333 enter_lower_func(op_And, lower_And);
2334 enter_lower_func(op_ASM, lower_ASM);
2335 enter_lower_func(op_Call, lower_Call);
2336 enter_lower_func(op_Cond, lower_Cond);
2337 enter_lower_func(op_Const, lower_Const);
2338 enter_lower_func(op_Conv, lower_Conv);
2339 enter_lower_func(op_Div, lower_Div);
2340 enter_lower_func(op_DivMod, lower_DivMod);
2341 enter_lower_func(op_Eor, lower_Eor);
2342 enter_lower_func(op_Load, lower_Load);
2343 enter_lower_func(op_Minus, lower_Unop);
2344 enter_lower_func(op_Mod, lower_Mod);
2345 enter_lower_func(op_Mul, lower_binop);
2346 enter_lower_func(op_Mux, lower_Mux);
2347 enter_lower_func(op_Not, lower_Not);
2348 enter_lower_func(op_Or, lower_Or);
2349 enter_lower_func(op_Proj, lower_Proj);
2350 enter_lower_func(op_Return, lower_Return);
2351 enter_lower_func(op_Sel, lower_Sel);
2352 enter_lower_func(op_Shl, lower_Shl);
2353 enter_lower_func(op_Shr, lower_Shr);
2354 enter_lower_func(op_Shrs, lower_Shrs);
2355 enter_lower_func(op_Start, lower_Start);
2356 enter_lower_func(op_Store, lower_Store);
2357 enter_lower_func(op_Sub, lower_binop);
2358 enter_lower_func(op_Unknown, lower_Unknown);
2360 lenv.tv_mode_bytes = new_tarval_from_long(param->doubleword_size/(2*8), lenv.low_unsigned);
2361 lenv.tv_mode_bits = new_tarval_from_long(param->doubleword_size/2, lenv.low_unsigned);
2362 lenv.waitq = new_pdeq();
2363 lenv.first_id = new_id_from_chars(param->little_endian ? ".l" : ".h", 2);
2364 lenv.next_id = new_id_from_chars(param->little_endian ? ".h" : ".l", 2);
2366 /* transform all graphs */
2367 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2368 ir_graph *irg = get_irp_irg(i);
2369 lower_irg(&lenv, irg);
2371 del_pdeq(lenv.waitq);
2374 /* Default implementation. */
2375 ir_entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2376 const ir_mode *imode, const ir_mode *omode,
2384 if (imode == omode) {
2385 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2387 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2388 get_mode_name(imode), get_mode_name(omode));
2390 id = new_id_from_str(buf);
2392 ent = new_entity(get_glob_type(), id, method);
2393 set_entity_ld_ident(ent, get_entity_ident(ent));