2 * Copyright (C) 1995-2008 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
36 #include "irgraph_t.h"
41 #include "dbginfo_t.h"
42 #include "iropt_dbg.h"
57 /** A map from (op, imode, omode) to Intrinsic functions entities. */
58 static set *intrinsic_fkt;
60 /** A map from (imode, omode) to conv function types. */
61 static set *conv_types;
63 /** A map from a method type to its lowered type. */
64 static pmap *lowered_type;
66 /** The types for the binop and unop intrinsics. */
67 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;
69 /** the debug handle */
70 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
73 * An entry in the (op, imode, omode) -> entity map.
75 typedef struct op_mode_entry {
76 const ir_op *op; /**< the op */
77 const ir_mode *imode; /**< the input mode */
78 const ir_mode *omode; /**< the output mode */
79 ir_entity *ent; /**< the associated entity of this (op, imode, omode) triple */
83 * An entry in the (imode, omode) -> tp map.
85 typedef struct conv_tp_entry {
86 const ir_mode *imode; /**< the input mode */
87 const ir_mode *omode; /**< the output mode */
88 ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
92 * Every double word node will be replaced,
93 * we need some store to hold the replacement:
95 typedef struct node_entry_t {
96 ir_node *low_word; /**< the low word */
97 ir_node *high_word; /**< the high word */
101 MUST_BE_LOWERED = 1, /**< graph must be lowered */
102 CF_CHANGED = 2, /**< control flow was changed */
106 * The lower environment.
108 typedef struct lower_env_t {
109 node_entry_t **entries; /**< entries per node */
111 struct obstack obst; /**< an obstack holding the temporary data */
112 ir_type *l_mtp; /**< lowered method type of the current method */
113 tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
114 tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
115 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
116 pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
117 ir_mode *high_signed; /**< doubleword signed type */
118 ir_mode *high_unsigned; /**< doubleword unsigned type */
119 ir_mode *low_signed; /**< word signed type */
120 ir_mode *low_unsigned; /**< word unsigned type */
121 ident *first_id; /**< .l for little and .h for big endian */
122 ident *next_id; /**< .h for little and .l for big endian */
123 const lwrdw_param_t *params; /**< transformation parameter */
124 unsigned flags; /**< some flags */
125 unsigned n_entries; /**< number of entries */
126 ir_type *value_param_tp; /**< the old value param type */
130 * Create a method type for a Conv emulation from imode to omode.
132 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env)
134 conv_tp_entry_t key, *entry;
141 entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
143 int n_param = 1, n_res = 1;
145 if (imode == env->high_signed || imode == env->high_unsigned)
147 if (omode == env->high_signed || omode == env->high_unsigned)
150 /* create a new one */
151 mtd = new_type_method(n_param, n_res);
153 /* set param types and result types */
155 if (imode == env->high_signed) {
156 set_method_param_type(mtd, n_param++, tp_u);
157 set_method_param_type(mtd, n_param++, tp_s);
158 } else if (imode == env->high_unsigned) {
159 set_method_param_type(mtd, n_param++, tp_u);
160 set_method_param_type(mtd, n_param++, tp_u);
162 ir_type *tp = get_type_for_mode(imode);
163 set_method_param_type(mtd, n_param++, tp);
167 if (omode == env->high_signed) {
168 set_method_res_type(mtd, n_res++, tp_u);
169 set_method_res_type(mtd, n_res++, tp_s);
170 } else if (omode == env->high_unsigned) {
171 set_method_res_type(mtd, n_res++, tp_u);
172 set_method_res_type(mtd, n_res++, tp_u);
174 ir_type *tp = get_type_for_mode(omode);
175 set_method_res_type(mtd, n_res++, tp);
185 * Add an additional control flow input to a block.
186 * Patch all Phi nodes. The new Phi inputs are copied from
187 * old input number nr.
189 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
191 int i, arity = get_irn_arity(block);
196 NEW_ARR_A(ir_node *, in, arity + 1);
197 for (i = 0; i < arity; ++i)
198 in[i] = get_irn_n(block, i);
201 set_irn_in(block, i + 1, in);
203 for (phi = get_Block_phis(block); phi != NULL; phi = get_Phi_next(phi)) {
204 for (i = 0; i < arity; ++i)
205 in[i] = get_irn_n(phi, i);
207 set_irn_in(phi, i + 1, in);
212 * Add an additional control flow input to a block.
213 * Patch all Phi nodes. The new Phi inputs are copied from
214 * old input from cf tmpl.
216 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
218 int i, arity = get_irn_arity(block);
221 for (i = 0; i < arity; ++i) {
222 if (get_irn_n(block, i) == tmpl) {
228 add_block_cf_input_nr(block, nr, cf);
232 * Return the "operational" mode of a Firm node.
234 static ir_mode *get_irn_op_mode(ir_node *node)
236 switch (get_irn_opcode(node)) {
238 return get_Load_mode(node);
240 return get_irn_mode(get_Store_value(node));
242 return get_irn_mode(get_DivMod_left(node));
244 return get_irn_mode(get_Div_left(node));
246 return get_irn_mode(get_Mod_left(node));
248 return get_irn_mode(get_Cmp_left(node));
250 return get_irn_mode(node);
255 * Walker, prepare the node links.
257 static void prepare_links(ir_node *node, void *env)
259 lower_env_t *lenv = env;
260 ir_mode *mode = get_irn_op_mode(node);
264 if (mode == lenv->high_signed || mode == lenv->high_unsigned) {
265 unsigned idx = get_irn_idx(node);
266 /* ok, found a node that will be lowered */
267 link = OALLOCZ(&lenv->obst, node_entry_t);
269 idx = get_irn_idx(node);
270 if (idx >= lenv->n_entries) {
271 /* enlarge: this happens only for Rotl nodes which is RARELY */
272 unsigned old = lenv->n_entries;
273 unsigned n_idx = idx + (idx >> 3);
275 ARR_RESIZE(node_entry_t *, lenv->entries, n_idx);
276 memset(&lenv->entries[old], 0, (n_idx - old) * sizeof(lenv->entries[0]));
277 lenv->n_entries = n_idx;
279 lenv->entries[idx] = link;
280 lenv->flags |= MUST_BE_LOWERED;
281 } else if (is_Conv(node)) {
282 /* Conv nodes have two modes */
283 ir_node *pred = get_Conv_op(node);
284 mode = get_irn_mode(pred);
286 if (mode == lenv->high_signed ||
287 mode == lenv->high_unsigned) {
288 /* must lower this node either but don't need a link */
289 lenv->flags |= MUST_BE_LOWERED;
295 /* link all Proj nodes to its predecessor:
296 Note that Tuple Proj's and its Projs are linked either. */
297 ir_node *pred = get_Proj_pred(node);
299 set_irn_link(node, get_irn_link(pred));
300 set_irn_link(pred, node);
301 } else if (is_Phi(node)) {
302 /* link all Phi nodes to its block */
303 ir_node *block = get_nodes_block(node);
304 add_Block_phi(block, node);
305 } else if (is_Block(node)) {
306 /* fill the Proj -> Block map */
307 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
308 ir_node *pred = get_Block_cfgpred(node, i);
311 pmap_insert(lenv->proj_2_block, pred, node);
317 * Translate a Constant: create two.
319 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env)
321 ir_graph *irg = get_irn_irg(node);
322 dbg_info *dbg = get_irn_dbg_info(node);
323 ir_mode *low_mode = env->low_unsigned;
325 tarval *tv, *tv_l, *tv_h;
328 tv = get_Const_tarval(node);
330 tv_l = tarval_convert_to(tv, low_mode);
331 low = new_rd_Const(dbg, irg, tv_l);
333 tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
334 high = new_rd_Const(dbg, irg, tv_h);
336 idx = get_irn_idx(node);
337 assert(idx < env->n_entries);
338 env->entries[idx]->low_word = low;
339 env->entries[idx]->high_word = high;
343 * Translate a Load: create two.
345 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env)
347 ir_mode *low_mode = env->low_unsigned;
348 ir_graph *irg = get_irn_irg(node);
349 ir_node *adr = get_Load_ptr(node);
350 ir_node *mem = get_Load_mem(node);
351 ir_node *low, *high, *proj;
353 ir_node *block = get_nodes_block(node);
355 ir_cons_flags volatility = get_Load_volatility(node) == volatility_is_volatile
358 if (env->params->little_endian) {
360 high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
362 low = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
366 /* create two loads */
367 dbg = get_irn_dbg_info(node);
368 low = new_rd_Load(dbg, block, mem, low, low_mode, volatility);
369 proj = new_r_Proj(low, mode_M, pn_Load_M);
370 high = new_rd_Load(dbg, block, proj, high, mode, volatility);
372 idx = get_irn_idx(node);
373 assert(idx < env->n_entries);
374 env->entries[idx]->low_word = low;
375 env->entries[idx]->high_word = high;
377 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
378 idx = get_irn_idx(proj);
380 switch (get_Proj_proj(proj)) {
381 case pn_Load_M: /* Memory result. */
382 /* put it to the second one */
383 set_Proj_pred(proj, high);
385 case pn_Load_X_except: /* Execution result if exception occurred. */
386 /* put it to the first one */
387 set_Proj_pred(proj, low);
389 case pn_Load_res: /* Result of load operation. */
390 assert(idx < env->n_entries);
391 env->entries[idx]->low_word = new_r_Proj(low, low_mode, pn_Load_res);
392 env->entries[idx]->high_word = new_r_Proj(high, mode, pn_Load_res);
395 assert(0 && "unexpected Proj number");
397 /* mark this proj: we have handled it already, otherwise we might fall into
399 mark_irn_visited(proj);
404 * Translate a Store: create two.
406 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env)
409 ir_node *block, *adr, *mem;
410 ir_node *low, *high, *irn, *proj;
414 ir_cons_flags volatility = get_Store_volatility(node) == volatility_is_volatile
418 irn = get_Store_value(node);
419 entry = env->entries[get_irn_idx(irn)];
422 if (! entry->low_word) {
423 /* not ready yet, wait */
424 pdeq_putr(env->waitq, node);
428 irg = get_irn_irg(node);
429 adr = get_Store_ptr(node);
430 mem = get_Store_mem(node);
431 block = get_nodes_block(node);
433 if (env->params->little_endian) {
435 high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
437 low = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
441 /* create two Stores */
442 dbg = get_irn_dbg_info(node);
443 low = new_rd_Store(dbg, block, mem, low, entry->low_word, volatility);
444 proj = new_r_Proj(low, mode_M, pn_Store_M);
445 high = new_rd_Store(dbg, block, proj, high, entry->high_word, volatility);
447 idx = get_irn_idx(node);
448 assert(idx < env->n_entries);
449 env->entries[idx]->low_word = low;
450 env->entries[idx]->high_word = high;
452 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
453 idx = get_irn_idx(proj);
455 switch (get_Proj_proj(proj)) {
456 case pn_Store_M: /* Memory result. */
457 /* put it to the second one */
458 set_Proj_pred(proj, high);
460 case pn_Store_X_except: /* Execution result if exception occurred. */
461 /* put it to the first one */
462 set_Proj_pred(proj, low);
465 assert(0 && "unexpected Proj number");
467 /* mark this proj: we have handled it already, otherwise we might fall into
469 mark_irn_visited(proj);
474 * Return a node containing the address of the intrinsic emulation function.
476 * @param method the method type of the emulation function
477 * @param op the emulated ir_op
478 * @param imode the input mode of the emulated opcode
479 * @param omode the output mode of the emulated opcode
480 * @param env the lower environment
482 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
483 ir_mode *imode, ir_mode *omode,
488 op_mode_entry_t key, *entry;
495 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
496 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
498 /* create a new one */
499 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
501 assert(ent && "Intrinsic creator must return an entity");
507 return new_r_SymConst(env->irg, mode_P_code, sym, symconst_addr_ent);
513 * Create an intrinsic Call.
515 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env)
517 ir_node *block, *irn, *call, *proj;
525 irn = get_Div_left(node);
526 entry = env->entries[get_irn_idx(irn)];
529 if (! entry->low_word) {
530 /* not ready yet, wait */
531 pdeq_putr(env->waitq, node);
535 in[0] = entry->low_word;
536 in[1] = entry->high_word;
538 irn = get_Div_right(node);
539 entry = env->entries[get_irn_idx(irn)];
542 if (! entry->low_word) {
543 /* not ready yet, wait */
544 pdeq_putr(env->waitq, node);
548 in[2] = entry->low_word;
549 in[3] = entry->high_word;
551 dbg = get_irn_dbg_info(node);
552 block = get_nodes_block(node);
554 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
555 opmode = get_irn_op_mode(node);
556 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
557 call = new_rd_Call(dbg, block, get_Div_mem(node), irn, 4, in, mtp);
558 set_irn_pinned(call, get_irn_pinned(node));
559 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
561 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
562 switch (get_Proj_proj(proj)) {
563 case pn_Div_M: /* Memory result. */
564 /* reroute to the call */
565 set_Proj_pred(proj, call);
566 set_Proj_proj(proj, pn_Call_M);
568 case pn_Div_X_except: /* Execution result if exception occurred. */
569 /* reroute to the call */
570 set_Proj_pred(proj, call);
571 set_Proj_proj(proj, pn_Call_X_except);
573 case pn_Div_res: /* Result of computation. */
574 idx = get_irn_idx(proj);
575 assert(idx < env->n_entries);
576 env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
577 env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
580 assert(0 && "unexpected Proj number");
582 /* mark this proj: we have handled it already, otherwise we might fall into
584 mark_irn_visited(proj);
591 * Create an intrinsic Call.
593 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env)
595 ir_node *block, *proj, *irn, *call;
603 irn = get_Mod_left(node);
604 entry = env->entries[get_irn_idx(irn)];
607 if (! entry->low_word) {
608 /* not ready yet, wait */
609 pdeq_putr(env->waitq, node);
613 in[0] = entry->low_word;
614 in[1] = entry->high_word;
616 irn = get_Mod_right(node);
617 entry = env->entries[get_irn_idx(irn)];
620 if (! entry->low_word) {
621 /* not ready yet, wait */
622 pdeq_putr(env->waitq, node);
626 in[2] = entry->low_word;
627 in[3] = entry->high_word;
629 dbg = get_irn_dbg_info(node);
630 block = get_nodes_block(node);
632 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
633 opmode = get_irn_op_mode(node);
634 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
635 call = new_rd_Call(dbg, block, get_Mod_mem(node), irn, 4, in, mtp);
636 set_irn_pinned(call, get_irn_pinned(node));
637 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
639 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
640 switch (get_Proj_proj(proj)) {
641 case pn_Mod_M: /* Memory result. */
642 /* reroute to the call */
643 set_Proj_pred(proj, call);
644 set_Proj_proj(proj, pn_Call_M);
646 case pn_Mod_X_except: /* Execution result if exception occurred. */
647 /* reroute to the call */
648 set_Proj_pred(proj, call);
649 set_Proj_proj(proj, pn_Call_X_except);
651 case pn_Mod_res: /* Result of computation. */
652 idx = get_irn_idx(proj);
653 assert(idx < env->n_entries);
654 env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
655 env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
658 assert(0 && "unexpected Proj number");
660 /* mark this proj: we have handled it already, otherwise we might fall into
662 mark_irn_visited(proj);
667 * Translate a DivMod.
669 * Create two intrinsic Calls.
671 static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env)
673 ir_node *block, *proj, *irn, *mem, *callDiv, *callMod;
674 ir_node *resDiv = NULL;
675 ir_node *resMod = NULL;
684 /* check if both results are needed */
685 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
686 switch (get_Proj_proj(proj)) {
687 case pn_DivMod_res_div: flags |= 1; break;
688 case pn_DivMod_res_mod: flags |= 2; break;
693 irn = get_DivMod_left(node);
694 entry = env->entries[get_irn_idx(irn)];
697 if (! entry->low_word) {
698 /* not ready yet, wait */
699 pdeq_putr(env->waitq, node);
703 in[0] = entry->low_word;
704 in[1] = entry->high_word;
706 irn = get_DivMod_right(node);
707 entry = env->entries[get_irn_idx(irn)];
710 if (! entry->low_word) {
711 /* not ready yet, wait */
712 pdeq_putr(env->waitq, node);
716 in[2] = entry->low_word;
717 in[3] = entry->high_word;
719 dbg = get_irn_dbg_info(node);
720 block = get_nodes_block(node);
722 mem = get_DivMod_mem(node);
724 callDiv = callMod = NULL;
725 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
727 opmode = get_irn_op_mode(node);
728 irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, env);
729 callDiv = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
730 set_irn_pinned(callDiv, get_irn_pinned(node));
731 resDiv = new_r_Proj(callDiv, mode_T, pn_Call_T_result);
735 mem = new_r_Proj(callDiv, mode_M, pn_Call_M);
736 opmode = get_irn_op_mode(node);
737 irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, env);
738 callMod = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
739 set_irn_pinned(callMod, get_irn_pinned(node));
740 resMod = new_r_Proj(callMod, mode_T, pn_Call_T_result);
743 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
744 switch (get_Proj_proj(proj)) {
745 case pn_DivMod_M: /* Memory result. */
746 /* reroute to the first call */
747 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
748 set_Proj_proj(proj, pn_Call_M);
750 case pn_DivMod_X_except: /* Execution result if exception occurred. */
751 /* reroute to the first call */
752 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
753 set_Proj_proj(proj, pn_Call_X_except);
755 case pn_DivMod_res_div: /* Result of Div. */
756 idx = get_irn_idx(proj);
757 assert(idx < env->n_entries);
758 env->entries[idx]->low_word = new_r_Proj(resDiv, env->low_unsigned, 0);
759 env->entries[idx]->high_word = new_r_Proj(resDiv, mode, 1);
761 case pn_DivMod_res_mod: /* Result of Mod. */
762 idx = get_irn_idx(proj);
763 env->entries[idx]->low_word = new_r_Proj(resMod, env->low_unsigned, 0);
764 env->entries[idx]->high_word = new_r_Proj(resMod, mode, 1);
767 assert(0 && "unexpected Proj number");
769 /* mark this proj: we have handled it already, otherwise we might fall into
771 mark_irn_visited(proj);
778 * Create an intrinsic Call.
780 static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env)
782 ir_node *block, *irn;
790 irn = get_binop_left(node);
791 entry = env->entries[get_irn_idx(irn)];
794 if (! entry->low_word) {
795 /* not ready yet, wait */
796 pdeq_putr(env->waitq, node);
800 in[0] = entry->low_word;
801 in[1] = entry->high_word;
803 irn = get_binop_right(node);
804 entry = env->entries[get_irn_idx(irn)];
807 if (! entry->low_word) {
808 /* not ready yet, wait */
809 pdeq_putr(env->waitq, node);
813 in[2] = entry->low_word;
814 in[3] = entry->high_word;
816 dbg = get_irn_dbg_info(node);
817 block = get_nodes_block(node);
818 irg = get_irn_irg(block);
820 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
821 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
822 irn = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 4, in, mtp);
823 set_irn_pinned(irn, get_irn_pinned(node));
824 irn = new_r_Proj(irn, mode_T, pn_Call_T_result);
826 idx = get_irn_idx(node);
827 assert(idx < env->n_entries);
828 env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
829 env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
833 * Translate a Shiftop.
835 * Create an intrinsic Call.
837 static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env)
839 ir_node *block, *irn;
847 irn = get_binop_left(node);
848 entry = env->entries[get_irn_idx(irn)];
851 if (! entry->low_word) {
852 /* not ready yet, wait */
853 pdeq_putr(env->waitq, node);
857 in[0] = entry->low_word;
858 in[1] = entry->high_word;
860 /* The shift count is always mode_Iu in firm, so there is no need for lowering */
861 in[2] = get_binop_right(node);
862 assert(get_irn_mode(in[2]) != env->high_signed
863 && get_irn_mode(in[2]) != env->high_unsigned);
865 dbg = get_irn_dbg_info(node);
866 block = get_nodes_block(node);
867 irg = get_irn_irg(block);
869 mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
870 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
871 irn = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 3, in, mtp);
872 set_irn_pinned(irn, get_irn_pinned(node));
873 irn = new_r_Proj(irn, mode_T, pn_Call_T_result);
875 idx = get_irn_idx(node);
876 assert(idx < env->n_entries);
877 env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
878 env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
882 * Translate a Shr and handle special cases.
884 static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env)
886 ir_graph *irg = get_irn_irg(node);
887 ir_node *right = get_Shr_right(node);
889 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
890 tarval *tv = get_Const_tarval(right);
892 if (tarval_is_long(tv) &&
893 get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
894 ir_node *block = get_nodes_block(node);
895 ir_node *left = get_Shr_left(node);
896 ir_mode *low_unsigned = env->low_unsigned;
898 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
899 unsigned idx = get_irn_idx(left);
901 left = env->entries[idx]->high_word;
903 /* not ready yet, wait */
904 pdeq_putr(env->waitq, node);
908 idx = get_irn_idx(node);
909 /* convert high word into low_unsigned mode if necessary */
910 if (get_irn_mode(left) != low_unsigned)
911 left = new_r_Conv(block, left, low_unsigned);
914 c = new_r_Const_long(irg, low_unsigned, shf_cnt);
915 env->entries[idx]->low_word = new_r_Shr(block, left, c,
918 env->entries[idx]->low_word = left;
920 env->entries[idx]->high_word = new_r_Const(irg, get_mode_null(mode));
925 lower_Shiftop(node, mode, env);
929 * Translate a Shl and handle special cases.
931 static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env)
933 ir_graph *irg = get_irn_irg(node);
934 ir_node *right = get_Shl_right(node);
936 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
937 tarval *tv = get_Const_tarval(right);
939 if (tarval_is_long(tv) &&
940 get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
942 ir_node *block = get_nodes_block(node);
943 ir_node *left = get_Shl_left(node);
945 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
946 unsigned idx = get_irn_idx(left);
948 left = env->entries[idx]->low_word;
950 /* not ready yet, wait */
951 pdeq_putr(env->waitq, node);
955 left = new_r_Conv(block, left, mode);
956 idx = get_irn_idx(node);
958 mode_l = env->low_unsigned;
960 c = new_r_Const_long(irg, mode_l, shf_cnt);
961 env->entries[idx]->high_word = new_r_Shl(block, left, c, mode);
963 env->entries[idx]->high_word = left;
965 env->entries[idx]->low_word = new_r_Const(irg, get_mode_null(mode_l));
970 lower_Shiftop(node, mode, env);
974 * Translate a Shrs and handle special cases.
976 static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env)
978 ir_graph *irg = get_irn_irg(node);
979 ir_node *right = get_Shrs_right(node);
981 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
982 tarval *tv = get_Const_tarval(right);
984 if (tarval_is_long(tv) &&
985 get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
986 ir_node *block = get_nodes_block(node);
987 ir_node *left = get_Shrs_left(node);
988 ir_mode *low_unsigned = env->low_unsigned;
989 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
990 unsigned idx = get_irn_idx(left);
991 ir_node *left_unsigned = left;
995 left = env->entries[idx]->high_word;
997 /* not ready yet, wait */
998 pdeq_putr(env->waitq, node);
1002 idx = get_irn_idx(node);
1003 /* convert high word into low_unsigned mode if necessary */
1004 if (get_irn_mode(left_unsigned) != low_unsigned)
1005 left_unsigned = new_r_Conv(block, left, low_unsigned);
1008 c = new_r_Const_long(irg, low_unsigned, shf_cnt);
1009 low = new_r_Shrs(block, left_unsigned, c, low_unsigned);
1011 low = left_unsigned;
1013 /* low word is expected to have low_unsigned */
1014 env->entries[idx]->low_word = new_r_Conv(block, low, low_unsigned);
1016 c = new_r_Const_long(irg, low_unsigned,
1017 get_mode_size_bits(mode) - 1);
1018 env->entries[idx]->high_word = new_r_Shrs(block, left, c, mode);
1023 lower_Shiftop(node, mode, env);
1027 * Rebuild Rotl nodes into Or(Shl, Shr) and prepare all nodes.
1029 static void prepare_links_and_handle_rotl(ir_node *node, void *env)
1031 lower_env_t *lenv = env;
1033 if (is_Rotl(node)) {
1034 ir_mode *mode = get_irn_op_mode(node);
1035 if (mode == lenv->high_signed ||
1036 mode == lenv->high_unsigned) {
1037 ir_node *right = get_Rotl_right(node);
1038 ir_node *left, *shl, *shr, *or, *block, *sub, *c;
1039 ir_mode *omode, *rmode;
1042 optimization_state_t state;
1044 /* replace the Rotl(x,y) by an Or(Shl(x,y), Shr(x,64-y)) and lower those */
1045 irg = get_irn_irg(node);
1046 dbg = get_irn_dbg_info(node);
1047 omode = get_irn_mode(node);
1048 left = get_Rotl_left(node);
1049 block = get_nodes_block(node);
1050 shl = new_rd_Shl(dbg, block, left, right, omode);
1051 rmode = get_irn_mode(right);
1052 c = new_r_Const_long(irg, rmode, get_mode_size_bits(omode));
1053 sub = new_rd_Sub(dbg, block, c, right, rmode);
1054 shr = new_rd_Shr(dbg, block, left, sub, omode);
1056 /* optimization must be switched off here, or we will get the Rotl back */
1057 save_optimization_state(&state);
1058 set_opt_algebraic_simplification(0);
1059 or = new_rd_Or(dbg, block, shl, shr, omode);
1060 restore_optimization_state(&state);
1064 /* do lowering on the new nodes */
1065 prepare_links(shl, env);
1066 prepare_links(c, env);
1067 prepare_links(sub, env);
1068 prepare_links(shr, env);
1069 prepare_links(or, env);
1072 prepare_links(node, env);
1077 * Translate an Unop.
1079 * Create an intrinsic Call.
1081 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env)
1083 ir_node *block, *irn;
1089 node_entry_t *entry;
1091 irn = get_unop_op(node);
1092 entry = env->entries[get_irn_idx(irn)];
1095 if (! entry->low_word) {
1096 /* not ready yet, wait */
1097 pdeq_putr(env->waitq, node);
1101 in[0] = entry->low_word;
1102 in[1] = entry->high_word;
1104 dbg = get_irn_dbg_info(node);
1105 block = get_nodes_block(node);
1106 irg = get_irn_irg(block);
1108 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
1109 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
1110 irn = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1111 set_irn_pinned(irn, get_irn_pinned(node));
1112 irn = new_r_Proj(irn, mode_T, pn_Call_T_result);
1114 idx = get_irn_idx(node);
1115 assert(idx < env->n_entries);
1116 env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
1117 env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
1121 * Translate a logical Binop.
1123 * Create two logical Binops.
1125 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
1126 ir_node *(*constr_rd)(dbg_info *db, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
1127 ir_node *block, *irn;
1128 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
1132 node_entry_t *entry;
1134 irn = get_binop_left(node);
1135 entry = env->entries[get_irn_idx(irn)];
1138 if (! entry->low_word) {
1139 /* not ready yet, wait */
1140 pdeq_putr(env->waitq, node);
1144 lop_l = entry->low_word;
1145 lop_h = entry->high_word;
1147 irn = get_binop_right(node);
1148 entry = env->entries[get_irn_idx(irn)];
1151 if (! entry->low_word) {
1152 /* not ready yet, wait */
1153 pdeq_putr(env->waitq, node);
1157 rop_l = entry->low_word;
1158 rop_h = entry->high_word;
1160 dbg = get_irn_dbg_info(node);
1161 block = get_nodes_block(node);
1163 idx = get_irn_idx(node);
1164 assert(idx < env->n_entries);
1165 irg = get_irn_irg(node);
1166 env->entries[idx]->low_word = constr_rd(dbg, block, lop_l, rop_l, env->low_unsigned);
1167 env->entries[idx]->high_word = constr_rd(dbg, block, lop_h, rop_h, mode);
1170 /** create a logical operation transformation */
1171 #define lower_logical(op) \
1172 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
1173 lower_Binop_logical(node, mode, env, new_rd_##op); \
1183 * Create two logical Nots.
1185 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env)
1187 ir_node *block, *irn;
1188 ir_node *op_l, *op_h;
1191 node_entry_t *entry;
1193 irn = get_Not_op(node);
1194 entry = env->entries[get_irn_idx(irn)];
1197 if (! entry->low_word) {
1198 /* not ready yet, wait */
1199 pdeq_putr(env->waitq, node);
1203 op_l = entry->low_word;
1204 op_h = entry->high_word;
1206 dbg = get_irn_dbg_info(node);
1207 block = get_nodes_block(node);
1209 idx = get_irn_idx(node);
1210 assert(idx < env->n_entries);
1211 env->entries[idx]->low_word = new_rd_Not(dbg, block, op_l, env->low_unsigned);
1212 env->entries[idx]->high_word = new_rd_Not(dbg, block, op_h, mode);
1218 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env)
1220 ir_node *cmp, *left, *right, *block;
1221 ir_node *sel = get_Cond_selector(node);
1222 ir_mode *m = get_irn_mode(sel);
1227 node_entry_t *lentry, *rentry;
1228 ir_node *proj, *projT = NULL, *projF = NULL;
1229 ir_node *new_bl, *cmpH, *cmpL, *irn;
1230 ir_node *projHF, *projHT;
1239 cmp = get_Proj_pred(sel);
1243 left = get_Cmp_left(cmp);
1244 idx = get_irn_idx(left);
1245 lentry = env->entries[idx];
1252 right = get_Cmp_right(cmp);
1253 idx = get_irn_idx(right);
1254 rentry = env->entries[idx];
1257 if (! lentry->low_word || !rentry->low_word) {
1259 pdeq_putr(env->waitq, node);
1263 /* all right, build the code */
1264 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1265 long proj_nr = get_Proj_proj(proj);
1267 if (proj_nr == pn_Cond_true) {
1268 assert(projT == NULL && "more than one Proj(true)");
1271 assert(proj_nr == pn_Cond_false);
1272 assert(projF == NULL && "more than one Proj(false)");
1275 mark_irn_visited(proj);
1277 assert(projT && projF);
1279 /* create a new high compare */
1280 block = get_nodes_block(node);
1281 irg = get_Block_irg(block);
1282 dbg = get_irn_dbg_info(cmp);
1283 pnc = get_Proj_proj(sel);
1285 if (is_Const(right) && is_Const_null(right)) {
1286 if (pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) {
1287 /* x ==/!= 0 ==> or(low,high) ==/!= 0 */
1288 ir_mode *mode = env->low_unsigned;
1289 ir_node *low = new_r_Conv(block, lentry->low_word, mode);
1290 ir_node *high = new_r_Conv(block, lentry->high_word, mode);
1291 ir_node *or = new_rd_Or(dbg, block, low, high, mode);
1292 ir_node *cmp = new_rd_Cmp(dbg, block, or, new_r_Const_long(irg, mode, 0));
1294 ir_node *proj = new_r_Proj(cmp, mode_b, pnc);
1295 set_Cond_selector(node, proj);
1300 cmpH = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word);
1302 if (pnc == pn_Cmp_Eq) {
1303 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1304 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1307 dst_blk = entry->value;
1309 irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
1310 dbg = get_irn_dbg_info(node);
1311 irn = new_rd_Cond(dbg, block, irn);
1313 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1314 mark_irn_visited(projHF);
1315 exchange(projF, projHF);
1317 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1318 mark_irn_visited(projHT);
1320 new_bl = new_r_Block(irg, 1, &projHT);
1322 dbg = get_irn_dbg_info(cmp);
1323 cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
1324 irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Eq);
1325 dbg = get_irn_dbg_info(node);
1326 irn = new_rd_Cond(dbg, new_bl, irn);
1328 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1329 mark_irn_visited(proj);
1330 add_block_cf_input(dst_blk, projHF, proj);
1332 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1333 mark_irn_visited(proj);
1334 exchange(projT, proj);
1335 } else if (pnc == pn_Cmp_Lg) {
1336 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1337 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1340 dst_blk = entry->value;
1342 irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Lg);
1343 dbg = get_irn_dbg_info(node);
1344 irn = new_rd_Cond(dbg, block, irn);
1346 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1347 mark_irn_visited(projHT);
1348 exchange(projT, projHT);
1350 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1351 mark_irn_visited(projHF);
1353 new_bl = new_r_Block(irg, 1, &projHF);
1355 dbg = get_irn_dbg_info(cmp);
1356 cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
1357 irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Lg);
1358 dbg = get_irn_dbg_info(node);
1359 irn = new_rd_Cond(dbg, new_bl, irn);
1361 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1362 mark_irn_visited(proj);
1363 add_block_cf_input(dst_blk, projHT, proj);
1365 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1366 mark_irn_visited(proj);
1367 exchange(projF, proj);
1369 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
1370 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1373 entry = pmap_find(env->proj_2_block, projT);
1375 dstT = entry->value;
1377 entry = pmap_find(env->proj_2_block, projF);
1379 dstF = entry->value;
1381 irn = new_r_Proj(cmpH, mode_b, pnc & ~pn_Cmp_Eq);
1382 dbg = get_irn_dbg_info(node);
1383 irn = new_rd_Cond(dbg, block, irn);
1385 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1386 mark_irn_visited(projHT);
1387 exchange(projT, projHT);
1390 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1391 mark_irn_visited(projHF);
1393 newbl_eq = new_r_Block(irg, 1, &projHF);
1395 irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
1396 irn = new_rd_Cond(dbg, newbl_eq, irn);
1398 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1399 mark_irn_visited(proj);
1400 exchange(projF, proj);
1403 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1404 mark_irn_visited(proj);
1406 newbl_l = new_r_Block(irg, 1, &proj);
1408 dbg = get_irn_dbg_info(cmp);
1409 cmpL = new_rd_Cmp(dbg, newbl_l, lentry->low_word, rentry->low_word);
1410 irn = new_r_Proj(cmpL, mode_b, pnc);
1411 dbg = get_irn_dbg_info(node);
1412 irn = new_rd_Cond(dbg, newbl_l, irn);
1414 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1415 mark_irn_visited(proj);
1416 add_block_cf_input(dstT, projT, proj);
1418 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1419 mark_irn_visited(proj);
1420 add_block_cf_input(dstF, projF, proj);
1423 /* we have changed the control flow */
1424 env->flags |= CF_CHANGED;
1426 idx = get_irn_idx(sel);
1428 if (env->entries[idx]) {
1430 Bad, a jump-table with double-word index.
1431 This should not happen, but if it does we handle
1432 it like a Conv were between (in other words, ignore
1436 if (! env->entries[idx]->low_word) {
1437 /* not ready yet, wait */
1438 pdeq_putr(env->waitq, node);
1441 set_Cond_selector(node, env->entries[idx]->low_word);
1447 * Translate a Conv to higher_signed
1449 static void lower_Conv_to_Ll(ir_node *node, lower_env_t *env)
1451 ir_mode *omode = get_irn_mode(node);
1452 ir_node *op = get_Conv_op(node);
1453 ir_mode *imode = get_irn_mode(op);
1454 unsigned idx = get_irn_idx(node);
1455 ir_graph *irg = get_irn_irg(node);
1456 ir_node *block = get_nodes_block(node);
1457 dbg_info *dbg = get_irn_dbg_info(node);
1458 node_entry_t *entry = env->entries[idx];
1459 ir_mode *low_unsigned = env->low_unsigned;
1461 = mode_is_signed(omode) ? env->low_signed : low_unsigned;
1463 assert(idx < env->n_entries);
1465 if (mode_is_int(imode) || mode_is_reference(imode)) {
1466 if (imode == env->high_signed
1467 || imode == env->high_unsigned) {
1468 /* a Conv from Lu to Ls or Ls to Lu */
1469 unsigned op_idx = get_irn_idx(op);
1470 node_entry_t *op_entry = env->entries[op_idx];
1472 if (! op_entry->low_word) {
1473 /* not ready yet, wait */
1474 pdeq_putr(env->waitq, node);
1477 entry->low_word = op_entry->low_word;
1478 entry->high_word = new_rd_Conv(dbg, block, op_entry->high_word,
1481 /* simple case: create a high word */
1482 if (imode != low_unsigned)
1483 op = new_rd_Conv(dbg, block, op, low_unsigned);
1485 entry->low_word = op;
1487 if (mode_is_signed(imode)) {
1488 int c = get_mode_size_bits(low_signed) - 1;
1489 ir_node *cnst = new_r_Const_long(irg, low_unsigned, c);
1490 if (get_irn_mode(op) != low_signed)
1491 op = new_rd_Conv(dbg, block, op, low_signed);
1492 entry->high_word = new_rd_Shrs(dbg, block, op, cnst,
1495 entry->high_word = new_r_Const(irg, get_mode_null(low_signed));
1498 } else if (imode == mode_b) {
1499 entry->low_word = new_rd_Conv(dbg, block, op, low_unsigned);
1500 entry->high_word = new_r_Const(irg, get_mode_null(low_signed));
1502 ir_node *irn, *call;
1503 ir_type *mtp = get_conv_type(imode, omode, env);
1505 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, env);
1506 call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1507 set_irn_pinned(call, get_irn_pinned(node));
1508 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
1510 entry->low_word = new_r_Proj(irn, low_unsigned, 0);
1511 entry->high_word = new_r_Proj(irn, low_signed, 1);
1516 * Translate a Conv from higher_unsigned
1518 static void lower_Conv_from_Ll(ir_node *node, lower_env_t *env)
1520 ir_node *op = get_Conv_op(node);
1521 ir_mode *omode = get_irn_mode(node);
1522 ir_node *block = get_nodes_block(node);
1523 dbg_info *dbg = get_irn_dbg_info(node);
1524 unsigned idx = get_irn_idx(op);
1525 ir_graph *irg = get_irn_irg(node);
1526 node_entry_t *entry = env->entries[idx];
1528 assert(idx < env->n_entries);
1530 if (! entry->low_word) {
1531 /* not ready yet, wait */
1532 pdeq_putr(env->waitq, node);
1536 if (mode_is_int(omode) || mode_is_reference(omode)) {
1537 op = entry->low_word;
1539 /* simple case: create a high word */
1540 if (omode != env->low_unsigned)
1541 op = new_rd_Conv(dbg, block, op, omode);
1543 set_Conv_op(node, op);
1544 } else if (omode == mode_b) {
1545 /* llu ? true : false <=> (low|high) ? true : false */
1546 ir_mode *mode = env->low_unsigned;
1547 ir_node *or = new_rd_Or(dbg, block, entry->low_word, entry->high_word,
1549 set_Conv_op(node, or);
1551 ir_node *irn, *call, *in[2];
1552 ir_mode *imode = get_irn_mode(op);
1553 ir_type *mtp = get_conv_type(imode, omode, env);
1555 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, env);
1556 in[0] = entry->low_word;
1557 in[1] = entry->high_word;
1559 call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1560 set_irn_pinned(call, get_irn_pinned(node));
1561 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
1563 exchange(node, new_r_Proj(irn, omode, 0));
1570 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env)
1572 mode = get_irn_mode(node);
1574 if (mode == env->high_signed
1575 || mode == env->high_unsigned) {
1576 lower_Conv_to_Ll(node, env);
1578 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1580 if (mode == env->high_signed
1581 || mode == env->high_unsigned) {
1582 lower_Conv_from_Ll(node, env);
1588 * Lower the method type.
1590 * @param mtp the method type to lower
1591 * @param ent the lower environment
1593 * @return the lowered type
1595 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env)
1599 ir_type *res, *value_type;
1601 if (is_lowered_type(mtp))
1604 entry = pmap_find(lowered_type, mtp);
1606 int i, n, r, n_param, n_res;
1608 /* count new number of params */
1609 n_param = n = get_method_n_params(mtp);
1610 for (i = n_param - 1; i >= 0; --i) {
1611 ir_type *tp = get_method_param_type(mtp, i);
1613 if (is_Primitive_type(tp)) {
1614 ir_mode *mode = get_type_mode(tp);
1616 if (mode == env->high_signed ||
1617 mode == env->high_unsigned)
1622 /* count new number of results */
1623 n_res = r = get_method_n_ress(mtp);
1624 for (i = n_res - 1; i >= 0; --i) {
1625 ir_type *tp = get_method_res_type(mtp, i);
1627 if (is_Primitive_type(tp)) {
1628 ir_mode *mode = get_type_mode(tp);
1630 if (mode == env->high_signed ||
1631 mode == env->high_unsigned)
1636 res = new_type_method(n_param, n_res);
1638 /* set param types and result types */
1639 for (i = n_param = 0; i < n; ++i) {
1640 ir_type *tp = get_method_param_type(mtp, i);
1642 if (is_Primitive_type(tp)) {
1643 ir_mode *mode = get_type_mode(tp);
1645 if (mode == env->high_signed) {
1646 set_method_param_type(res, n_param++, tp_u);
1647 set_method_param_type(res, n_param++, tp_s);
1648 } else if (mode == env->high_unsigned) {
1649 set_method_param_type(res, n_param++, tp_u);
1650 set_method_param_type(res, n_param++, tp_u);
1652 set_method_param_type(res, n_param++, tp);
1655 set_method_param_type(res, n_param++, tp);
1658 for (i = n_res = 0; i < r; ++i) {
1659 ir_type *tp = get_method_res_type(mtp, i);
1661 if (is_Primitive_type(tp)) {
1662 ir_mode *mode = get_type_mode(tp);
1664 if (mode == env->high_signed) {
1665 set_method_res_type(res, n_res++, tp_u);
1666 set_method_res_type(res, n_res++, tp_s);
1667 } else if (mode == env->high_unsigned) {
1668 set_method_res_type(res, n_res++, tp_u);
1669 set_method_res_type(res, n_res++, tp_u);
1671 set_method_res_type(res, n_res++, tp);
1674 set_method_res_type(res, n_res++, tp);
1677 set_lowered_type(mtp, res);
1678 pmap_insert(lowered_type, mtp, res);
1680 value_type = get_method_value_param_type(mtp);
1681 if (value_type != NULL) {
1682 /* this creates a new value parameter type */
1683 (void)get_method_value_param_ent(res, 0);
1685 /* set new param positions */
1686 for (i = n_param = 0; i < n; ++i) {
1687 ir_type *tp = get_method_param_type(mtp, i);
1688 ident *id = get_method_param_ident(mtp, i);
1689 ir_entity *ent = get_method_value_param_ent(mtp, i);
1691 set_entity_link(ent, INT_TO_PTR(n_param));
1692 if (is_Primitive_type(tp)) {
1693 ir_mode *mode = get_type_mode(tp);
1695 if (mode == env->high_signed || mode == env->high_unsigned) {
1697 lid = id_mangle(id, env->first_id);
1698 set_method_param_ident(res, n_param, lid);
1699 set_entity_ident(get_method_value_param_ent(res, n_param), lid);
1700 lid = id_mangle(id, env->next_id);
1701 set_method_param_ident(res, n_param + 1, lid);
1702 set_entity_ident(get_method_value_param_ent(res, n_param + 1), lid);
1709 set_method_param_ident(res, n_param, id);
1710 set_entity_ident(get_method_value_param_ent(res, n_param), id);
1715 set_lowered_type(value_type, get_method_value_param_type(res));
1724 * Translate a Return.
1726 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env)
1728 ir_graph *irg = get_irn_irg(node);
1729 ir_entity *ent = get_irg_entity(irg);
1730 ir_type *mtp = get_entity_type(ent);
1737 /* check if this return must be lowered */
1738 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1739 ir_node *pred = get_Return_res(node, i);
1740 ir_mode *mode = get_irn_op_mode(pred);
1742 if (mode == env->high_signed ||
1743 mode == env->high_unsigned) {
1744 idx = get_irn_idx(pred);
1745 if (! env->entries[idx]->low_word) {
1746 /* not ready yet, wait */
1747 pdeq_putr(env->waitq, node);
1756 ent = get_irg_entity(irg);
1757 mtp = get_entity_type(ent);
1759 mtp = lower_mtp(mtp, env);
1760 set_entity_type(ent, mtp);
1762 /* create a new in array */
1763 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1764 in[0] = get_Return_mem(node);
1766 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1767 ir_node *pred = get_Return_res(node, i);
1769 idx = get_irn_idx(pred);
1770 assert(idx < env->n_entries);
1772 if (env->entries[idx]) {
1773 in[++j] = env->entries[idx]->low_word;
1774 in[++j] = env->entries[idx]->high_word;
1780 set_irn_in(node, j+1, in);
1784 * Translate the parameters.
1786 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env)
1788 ir_graph *irg = get_irn_irg(node);
1789 ir_entity *ent = get_irg_entity(irg);
1790 ir_type *tp = get_entity_type(ent);
1793 int i, j, n_params, rem;
1794 ir_node *proj, *args;
1797 if (is_lowered_type(tp)) {
1798 mtp = get_associated_type(tp);
1802 assert(! is_lowered_type(mtp));
1804 n_params = get_method_n_params(mtp);
1808 NEW_ARR_A(long, new_projs, n_params);
1810 /* first check if we have parameters that must be fixed */
1811 for (i = j = 0; i < n_params; ++i, ++j) {
1812 ir_type *tp = get_method_param_type(mtp, i);
1815 if (is_Primitive_type(tp)) {
1816 ir_mode *mode = get_type_mode(tp);
1818 if (mode == env->high_signed ||
1819 mode == env->high_unsigned)
1826 mtp = lower_mtp(mtp, env);
1827 set_entity_type(ent, mtp);
1829 /* switch off optimization for new Proj nodes or they might be CSE'ed
1830 with not patched one's */
1831 rem = get_optimize();
1834 /* ok, fix all Proj's and create new ones */
1835 args = get_irg_args(irg);
1836 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1837 ir_node *pred = get_Proj_pred(proj);
1843 /* do not visit this node again */
1844 mark_irn_visited(proj);
1849 proj_nr = get_Proj_proj(proj);
1850 set_Proj_proj(proj, new_projs[proj_nr]);
1852 idx = get_irn_idx(proj);
1853 if (env->entries[idx]) {
1854 ir_mode *low_mode = env->low_unsigned;
1856 mode = get_irn_mode(proj);
1858 if (mode == env->high_signed) {
1859 mode = env->low_signed;
1861 mode = env->low_unsigned;
1864 dbg = get_irn_dbg_info(proj);
1865 env->entries[idx]->low_word =
1866 new_rd_Proj(dbg, args, low_mode, new_projs[proj_nr]);
1867 env->entries[idx]->high_word =
1868 new_rd_Proj(dbg, args, mode, new_projs[proj_nr] + 1);
1877 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env)
1879 ir_type *tp = get_Call_type(node);
1881 ir_node **in, *proj, *results;
1882 int n_params, n_res, need_lower = 0;
1884 long *res_numbers = NULL;
1887 if (is_lowered_type(tp)) {
1888 call_tp = get_associated_type(tp);
1893 assert(! is_lowered_type(call_tp));
1895 n_params = get_method_n_params(call_tp);
1896 for (i = 0; i < n_params; ++i) {
1897 ir_type *tp = get_method_param_type(call_tp, i);
1899 if (is_Primitive_type(tp)) {
1900 ir_mode *mode = get_type_mode(tp);
1902 if (mode == env->high_signed ||
1903 mode == env->high_unsigned) {
1909 n_res = get_method_n_ress(call_tp);
1911 NEW_ARR_A(long, res_numbers, n_res);
1913 for (i = j = 0; i < n_res; ++i, ++j) {
1914 ir_type *tp = get_method_res_type(call_tp, i);
1917 if (is_Primitive_type(tp)) {
1918 ir_mode *mode = get_type_mode(tp);
1920 if (mode == env->high_signed ||
1921 mode == env->high_unsigned) {
1932 /* let's lower it */
1933 call_tp = lower_mtp(call_tp, env);
1934 set_Call_type(node, call_tp);
1936 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1938 in[0] = get_Call_mem(node);
1939 in[1] = get_Call_ptr(node);
1941 for (j = 2, i = 0; i < n_params; ++i) {
1942 ir_node *pred = get_Call_param(node, i);
1943 unsigned idx = get_irn_idx(pred);
1945 if (env->entries[idx]) {
1946 if (! env->entries[idx]->low_word) {
1947 /* not ready yet, wait */
1948 pdeq_putr(env->waitq, node);
1951 in[j++] = env->entries[idx]->low_word;
1952 in[j++] = env->entries[idx]->high_word;
1958 set_irn_in(node, j, in);
1960 /* fix the results */
1962 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1963 long proj_nr = get_Proj_proj(proj);
1965 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1966 /* found the result proj */
1972 if (results) { /* there are results */
1973 int rem = get_optimize();
1975 /* switch off optimization for new Proj nodes or they might be CSE'ed
1976 with not patched one's */
1978 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1979 if (get_Proj_pred(proj) == results) {
1980 long proj_nr = get_Proj_proj(proj);
1983 /* found a result */
1984 set_Proj_proj(proj, res_numbers[proj_nr]);
1985 idx = get_irn_idx(proj);
1986 if (env->entries[idx]) {
1987 ir_mode *mode = get_irn_mode(proj);
1988 ir_mode *low_mode = env->low_unsigned;
1991 if (mode == env->high_signed) {
1992 mode = env->low_signed;
1994 mode = env->low_unsigned;
1997 dbg = get_irn_dbg_info(proj);
1998 env->entries[idx]->low_word =
1999 new_rd_Proj(dbg, results, low_mode, res_numbers[proj_nr]);
2000 env->entries[idx]->high_word =
2001 new_rd_Proj(dbg, results, mode, res_numbers[proj_nr] + 1);
2003 mark_irn_visited(proj);
2011 * Translate an Unknown into two.
2013 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env)
2015 unsigned idx = get_irn_idx(node);
2016 ir_graph *irg = get_irn_irg(node);
2017 ir_mode *low_mode = env->low_unsigned;
2019 env->entries[idx]->low_word = new_r_Unknown(irg, low_mode);
2020 env->entries[idx]->high_word = new_r_Unknown(irg, mode);
2026 * First step: just create two templates
2028 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env)
2030 ir_mode *mode_l = env->low_unsigned;
2031 ir_graph *irg = get_irn_irg(phi);
2032 ir_node *block, *unk_l, *unk_h, *phi_l, *phi_h;
2033 ir_node **inl, **inh;
2036 int i, arity = get_Phi_n_preds(phi);
2039 idx = get_irn_idx(phi);
2040 if (env->entries[idx]->low_word) {
2041 /* Phi nodes already build, check for inputs */
2042 ir_node *phil = env->entries[idx]->low_word;
2043 ir_node *phih = env->entries[idx]->high_word;
2045 for (i = 0; i < arity; ++i) {
2046 ir_node *pred = get_Phi_pred(phi, i);
2047 unsigned idx = get_irn_idx(pred);
2049 if (env->entries[idx]->low_word) {
2050 set_Phi_pred(phil, i, env->entries[idx]->low_word);
2051 set_Phi_pred(phih, i, env->entries[idx]->high_word);
2053 /* still not ready */
2054 pdeq_putr(env->waitq, phi);
2060 /* first create a new in array */
2061 NEW_ARR_A(ir_node *, inl, arity);
2062 NEW_ARR_A(ir_node *, inh, arity);
2063 unk_l = new_r_Dummy(irg, mode_l);
2064 unk_h = new_r_Dummy(irg, mode);
2066 for (i = 0; i < arity; ++i) {
2067 ir_node *pred = get_Phi_pred(phi, i);
2068 unsigned idx = get_irn_idx(pred);
2070 if (env->entries[idx]->low_word) {
2071 inl[i] = env->entries[idx]->low_word;
2072 inh[i] = env->entries[idx]->high_word;
2080 dbg = get_irn_dbg_info(phi);
2081 block = get_nodes_block(phi);
2083 idx = get_irn_idx(phi);
2084 assert(idx < env->n_entries);
2085 env->entries[idx]->low_word = phi_l = new_rd_Phi(dbg, block, arity, inl, mode_l);
2086 env->entries[idx]->high_word = phi_h = new_rd_Phi(dbg, block, arity, inh, mode);
2088 /* Don't forget to link the new Phi nodes into the block.
2089 * Beware that some Phis might be optimized away. */
2091 add_Block_phi(block, phi_l);
2093 add_Block_phi(block, phi_h);
2096 /* not yet finished */
2097 pdeq_putr(env->waitq, phi);
2104 static void lower_Mux(ir_node *mux, ir_mode *mode, lower_env_t *env)
2106 ir_node *block, *val;
2107 ir_node *true_l, *true_h, *false_l, *false_h, *sel;
2111 val = get_Mux_true(mux);
2112 idx = get_irn_idx(val);
2113 if (env->entries[idx]->low_word) {
2114 /* Values already build */
2115 true_l = env->entries[idx]->low_word;
2116 true_h = env->entries[idx]->high_word;
2118 /* still not ready */
2119 pdeq_putr(env->waitq, mux);
2123 val = get_Mux_false(mux);
2124 idx = get_irn_idx(val);
2125 if (env->entries[idx]->low_word) {
2126 /* Values already build */
2127 false_l = env->entries[idx]->low_word;
2128 false_h = env->entries[idx]->high_word;
2130 /* still not ready */
2131 pdeq_putr(env->waitq, mux);
2136 sel = get_Mux_sel(mux);
2138 dbg = get_irn_dbg_info(mux);
2139 block = get_nodes_block(mux);
2141 idx = get_irn_idx(mux);
2142 assert(idx < env->n_entries);
2143 env->entries[idx]->low_word = new_rd_Mux(dbg, block, sel, false_l, true_l, env->low_unsigned);
2144 env->entries[idx]->high_word = new_rd_Mux(dbg, block, sel, false_h, true_h, mode);
2148 * Translate an ASM node.
2150 static void lower_ASM(ir_node *asmn, ir_mode *mode, lower_env_t *env)
2152 ir_mode *his = env->high_signed;
2153 ir_mode *hiu = env->high_unsigned;
2159 for (i = get_irn_arity(asmn) - 1; i >= 0; --i) {
2160 ir_mode *op_mode = get_irn_mode(get_irn_n(asmn, i));
2161 if (op_mode == his || op_mode == hiu) {
2162 panic("lowering ASM unimplemented");
2169 n = get_irn_link(n);
2173 proj_mode = get_irn_mode(n);
2174 if (proj_mode == his || proj_mode == hiu) {
2175 panic("lowering ASM unimplemented");
2181 * Translate a Sel node.
2183 static void lower_Sel(ir_node *sel, ir_mode *mode, lower_env_t *env)
2187 /* we must only lower value parameter Sels if we change the
2188 value parameter type. */
2189 if (env->value_param_tp != NULL) {
2190 ir_entity *ent = get_Sel_entity(sel);
2191 if (get_entity_owner(ent) == env->value_param_tp) {
2192 int pos = PTR_TO_INT(get_entity_link(ent));
2194 ent = get_method_value_param_ent(env->l_mtp, pos);
2195 set_Sel_entity(sel, ent);
2201 * check for opcodes that must always be lowered.
2203 static int always_lower(ir_opcode code)
2221 * lower boolean Proj(Cmp)
2223 static ir_node *lower_boolean_Proj_Cmp(ir_node *proj, ir_node *cmp, lower_env_t *env)
2227 ir_node *l, *r, *low, *high, *t, *res;
2232 l = get_Cmp_left(cmp);
2233 lidx = get_irn_idx(l);
2234 if (! env->entries[lidx]->low_word) {
2235 /* still not ready */
2239 r = get_Cmp_right(cmp);
2240 ridx = get_irn_idx(r);
2241 if (! env->entries[ridx]->low_word) {
2242 /* still not ready */
2246 pnc = get_Proj_proj(proj);
2247 blk = get_nodes_block(cmp);
2248 db = get_irn_dbg_info(cmp);
2249 low = new_rd_Cmp(db, blk, env->entries[lidx]->low_word, env->entries[ridx]->low_word);
2250 high = new_rd_Cmp(db, blk, env->entries[lidx]->high_word, env->entries[ridx]->high_word);
2252 if (pnc == pn_Cmp_Eq) {
2253 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
2254 res = new_rd_And(db, blk,
2255 new_r_Proj(low, mode_b, pnc),
2256 new_r_Proj(high, mode_b, pnc),
2258 } else if (pnc == pn_Cmp_Lg) {
2259 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
2260 res = new_rd_Or(db, blk,
2261 new_r_Proj(low, mode_b, pnc),
2262 new_r_Proj(high, mode_b, pnc),
2265 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
2266 t = new_rd_And(db, blk,
2267 new_r_Proj(low, mode_b, pnc),
2268 new_r_Proj(high, mode_b, pn_Cmp_Eq),
2270 res = new_rd_Or(db, blk,
2271 new_r_Proj(high, mode_b, pnc & ~pn_Cmp_Eq),
2279 * The type of a lower function.
2281 * @param node the node to be lowered
2282 * @param mode the low mode for the destination node
2283 * @param env the lower environment
2285 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
2290 static void lower_ops(ir_node *node, void *env)
2292 lower_env_t *lenv = env;
2293 node_entry_t *entry;
2294 unsigned idx = get_irn_idx(node);
2295 ir_mode *mode = get_irn_mode(node);
2297 if (mode == mode_b || is_Mux(node) || is_Conv(node)) {
2300 for (i = get_irn_arity(node) - 1; i >= 0; --i) {
2301 ir_node *proj = get_irn_n(node, i);
2303 if (is_Proj(proj)) {
2304 ir_node *cmp = get_Proj_pred(proj);
2307 ir_node *arg = get_Cmp_left(cmp);
2309 mode = get_irn_mode(arg);
2310 if (mode == lenv->high_signed ||
2311 mode == lenv->high_unsigned) {
2312 ir_node *res = lower_boolean_Proj_Cmp(proj, cmp, lenv);
2315 /* could not lower because predecessors not ready */
2316 waitq_put(lenv->waitq, node);
2319 set_irn_n(node, i, res);
2326 entry = idx < lenv->n_entries ? lenv->entries[idx] : NULL;
2327 if (entry || always_lower(get_irn_opcode(node))) {
2328 ir_op *op = get_irn_op(node);
2329 lower_func func = (lower_func)op->ops.generic;
2332 mode = get_irn_op_mode(node);
2334 if (mode == lenv->high_signed)
2335 mode = lenv->low_signed;
2337 mode = lenv->low_unsigned;
2339 DB((dbg, LEVEL_1, " %+F\n", node));
2340 func(node, mode, lenv);
2345 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
2348 * Compare two op_mode_entry_t's.
2350 static int cmp_op_mode(const void *elt, const void *key, size_t size)
2352 const op_mode_entry_t *e1 = elt;
2353 const op_mode_entry_t *e2 = key;
2356 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
2360 * Compare two conv_tp_entry_t's.
2362 static int cmp_conv_tp(const void *elt, const void *key, size_t size)
2364 const conv_tp_entry_t *e1 = elt;
2365 const conv_tp_entry_t *e2 = key;
2368 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
2372 * Enter a lowering function into an ir_op.
2374 static void enter_lower_func(ir_op *op, lower_func func)
2376 op->ops.generic = (op_func)func;
2380 * Returns non-zero if a method type must be lowered.
2382 * @param mtp the method type
2384 static int mtp_must_be_lowered(ir_type *mtp, lower_env_t *env)
2388 n_params = get_method_n_params(mtp);
2392 /* first check if we have parameters that must be fixed */
2393 for (i = 0; i < n_params; ++i) {
2394 ir_type *tp = get_method_param_type(mtp, i);
2396 if (is_Primitive_type(tp)) {
2397 ir_mode *mode = get_type_mode(tp);
2399 if (mode == env->high_signed ||
2400 mode == env->high_unsigned)
2407 static void setup_modes(lower_env_t *env)
2409 unsigned size_bits = env->params->doubleword_size;
2410 ir_mode *doubleword_signed = NULL;
2411 ir_mode *doubleword_unsigned = NULL;
2412 int n_modes = get_irp_n_modes();
2413 ir_mode_arithmetic arithmetic;
2414 unsigned modulo_shift;
2417 /* search for doubleword modes... */
2418 for (i = 0; i < n_modes; ++i) {
2419 ir_mode *mode = get_irp_mode(i);
2420 if (!mode_is_int(mode))
2422 if (get_mode_size_bits(mode) != size_bits)
2424 if (mode_is_signed(mode)) {
2425 if (doubleword_signed != NULL) {
2426 /* sigh - the lowerer should really just lower all mode with
2427 * size_bits it finds. Unfortunately this required a bigger
2429 panic("multiple double word signed modes found");
2431 doubleword_signed = mode;
2433 if (doubleword_unsigned != NULL) {
2434 /* sigh - the lowerer should really just lower all mode with
2435 * size_bits it finds. Unfortunately this required a bigger
2437 panic("multiple double word unsigned modes found");
2439 doubleword_unsigned = mode;
2442 if (doubleword_signed == NULL || doubleword_unsigned == NULL) {
2443 panic("Couldn't find doubleword modes");
2446 arithmetic = get_mode_arithmetic(doubleword_signed);
2447 modulo_shift = get_mode_modulo_shift(doubleword_signed);
2449 assert(get_mode_size_bits(doubleword_unsigned) == size_bits);
2450 assert(size_bits % 2 == 0);
2451 assert(get_mode_sign(doubleword_signed) == 1);
2452 assert(get_mode_sign(doubleword_unsigned) == 0);
2453 assert(get_mode_sort(doubleword_signed) == irms_int_number);
2454 assert(get_mode_sort(doubleword_unsigned) == irms_int_number);
2455 assert(get_mode_arithmetic(doubleword_unsigned) == arithmetic);
2456 assert(get_mode_modulo_shift(doubleword_unsigned) == modulo_shift);
2458 /* try to guess a sensible modulo shift for the new mode.
2459 * (This is IMO another indication that this should really be a node
2460 * attribute instead of a mode thing) */
2461 if (modulo_shift == size_bits) {
2462 modulo_shift = modulo_shift / 2;
2463 } else if (modulo_shift == 0) {
2466 panic("Don't know what new modulo shift to use for lowered doubleword mode");
2470 /* produce lowered modes */
2471 env->high_signed = doubleword_signed;
2472 env->high_unsigned = doubleword_unsigned;
2473 env->low_signed = new_ir_mode("WS", irms_int_number, size_bits, 1,
2474 arithmetic, modulo_shift);
2475 env->low_unsigned = new_ir_mode("WU", irms_int_number, size_bits, 0,
2476 arithmetic, modulo_shift);
2482 void lower_dw_ops(const lwrdw_param_t *param)
2490 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
2492 memset(&lenv, 0, sizeof(lenv));
2493 lenv.params = param;
2496 /* create the necessary maps */
2497 if (! intrinsic_fkt)
2498 intrinsic_fkt = new_set(cmp_op_mode, iro_Last + 1);
2500 conv_types = new_set(cmp_conv_tp, 16);
2502 lowered_type = pmap_create();
2504 /* create a primitive unsigned and signed type */
2506 tp_u = get_type_for_mode(lenv.low_unsigned);
2508 tp_s = get_type_for_mode(lenv.low_signed);
2510 /* create method types for the created binop calls */
2512 binop_tp_u = new_type_method(4, 2);
2513 set_method_param_type(binop_tp_u, 0, tp_u);
2514 set_method_param_type(binop_tp_u, 1, tp_u);
2515 set_method_param_type(binop_tp_u, 2, tp_u);
2516 set_method_param_type(binop_tp_u, 3, tp_u);
2517 set_method_res_type(binop_tp_u, 0, tp_u);
2518 set_method_res_type(binop_tp_u, 1, tp_u);
2521 binop_tp_s = new_type_method(4, 2);
2522 set_method_param_type(binop_tp_s, 0, tp_u);
2523 set_method_param_type(binop_tp_s, 1, tp_s);
2524 set_method_param_type(binop_tp_s, 2, tp_u);
2525 set_method_param_type(binop_tp_s, 3, tp_s);
2526 set_method_res_type(binop_tp_s, 0, tp_u);
2527 set_method_res_type(binop_tp_s, 1, tp_s);
2529 if (! shiftop_tp_u) {
2530 shiftop_tp_u = new_type_method(3, 2);
2531 set_method_param_type(shiftop_tp_u, 0, tp_u);
2532 set_method_param_type(shiftop_tp_u, 1, tp_u);
2533 set_method_param_type(shiftop_tp_u, 2, tp_u);
2534 set_method_res_type(shiftop_tp_u, 0, tp_u);
2535 set_method_res_type(shiftop_tp_u, 1, tp_u);
2537 if (! shiftop_tp_s) {
2538 shiftop_tp_s = new_type_method(3, 2);
2539 set_method_param_type(shiftop_tp_s, 0, tp_u);
2540 set_method_param_type(shiftop_tp_s, 1, tp_s);
2541 set_method_param_type(shiftop_tp_s, 2, tp_u);
2542 set_method_res_type(shiftop_tp_s, 0, tp_u);
2543 set_method_res_type(shiftop_tp_s, 1, tp_s);
2546 unop_tp_u = new_type_method(2, 2);
2547 set_method_param_type(unop_tp_u, 0, tp_u);
2548 set_method_param_type(unop_tp_u, 1, tp_u);
2549 set_method_res_type(unop_tp_u, 0, tp_u);
2550 set_method_res_type(unop_tp_u, 1, tp_u);
2553 unop_tp_s = new_type_method(2, 2);
2554 set_method_param_type(unop_tp_s, 0, tp_u);
2555 set_method_param_type(unop_tp_s, 1, tp_s);
2556 set_method_res_type(unop_tp_s, 0, tp_u);
2557 set_method_res_type(unop_tp_s, 1, tp_s);
2560 lenv.tv_mode_bytes = new_tarval_from_long(param->doubleword_size/(2*8), lenv.low_unsigned);
2561 lenv.tv_mode_bits = new_tarval_from_long(param->doubleword_size/2, lenv.low_unsigned);
2562 lenv.waitq = new_pdeq();
2563 lenv.first_id = new_id_from_chars(param->little_endian ? ".l" : ".h", 2);
2564 lenv.next_id = new_id_from_chars(param->little_endian ? ".h" : ".l", 2);
2566 clear_irp_opcodes_generic_func();
2567 enter_lower_func(op_Add, lower_Binop);
2568 enter_lower_func(op_And, lower_And);
2569 enter_lower_func(op_ASM, lower_ASM);
2570 enter_lower_func(op_Call, lower_Call);
2571 enter_lower_func(op_Cond, lower_Cond);
2572 enter_lower_func(op_Const, lower_Const);
2573 enter_lower_func(op_Conv, lower_Conv);
2574 enter_lower_func(op_Div, lower_Div);
2575 enter_lower_func(op_DivMod, lower_DivMod);
2576 enter_lower_func(op_Eor, lower_Eor);
2577 enter_lower_func(op_Load, lower_Load);
2578 enter_lower_func(op_Minus, lower_Unop);
2579 enter_lower_func(op_Mod, lower_Mod);
2580 enter_lower_func(op_Mul, lower_Binop);
2581 enter_lower_func(op_Mux, lower_Mux);
2582 enter_lower_func(op_Not, lower_Not);
2583 enter_lower_func(op_Or, lower_Or);
2584 enter_lower_func(op_Phi, lower_Phi);
2585 enter_lower_func(op_Return, lower_Return);
2586 enter_lower_func(op_Sel, lower_Sel);
2587 enter_lower_func(op_Shl, lower_Shl);
2588 enter_lower_func(op_Shr, lower_Shr);
2589 enter_lower_func(op_Shrs, lower_Shrs);
2590 enter_lower_func(op_Start, lower_Start);
2591 enter_lower_func(op_Store, lower_Store);
2592 enter_lower_func(op_Sub, lower_Binop);
2593 enter_lower_func(op_Unknown, lower_Unknown);
2595 /* transform all graphs */
2596 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2597 ir_graph *irg = get_irp_irg(i);
2602 obstack_init(&lenv.obst);
2604 n_idx = get_irg_last_idx(irg);
2605 n_idx = n_idx + (n_idx >> 2); /* add 25% */
2606 lenv.n_entries = n_idx;
2607 lenv.entries = NEW_ARR_F(node_entry_t *, n_idx);
2608 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2613 lenv.proj_2_block = pmap_create();
2614 lenv.value_param_tp = NULL;
2615 ir_reserve_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
2617 ent = get_irg_entity(irg);
2618 mtp = get_entity_type(ent);
2620 if (mtp_must_be_lowered(mtp, &lenv)) {
2621 ir_type *ltp = lower_mtp(mtp, &lenv);
2622 lenv.flags |= MUST_BE_LOWERED;
2623 set_entity_type(ent, ltp);
2625 lenv.value_param_tp = get_method_value_param_type(mtp);
2628 /* first step: link all nodes and allocate data */
2629 irg_walk_graph(irg, firm_clear_node_and_phi_links, prepare_links_and_handle_rotl, &lenv);
2631 if (lenv.flags & MUST_BE_LOWERED) {
2632 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2634 /* must do some work */
2635 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2637 /* last step: all waiting nodes */
2638 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2639 while (! pdeq_empty(lenv.waitq)) {
2640 ir_node *node = pdeq_getl(lenv.waitq);
2642 lower_ops(node, &lenv);
2645 ir_free_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
2647 /* outs are invalid, we changed the graph */
2648 set_irg_outs_inconsistent(irg);
2650 if (lenv.flags & CF_CHANGED) {
2651 /* control flow changed, dominance info is invalid */
2652 set_irg_doms_inconsistent(irg);
2653 set_irg_extblk_inconsistent(irg);
2654 set_irg_loopinfo_inconsistent(irg);
2657 ir_free_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
2659 pmap_destroy(lenv.proj_2_block);
2660 DEL_ARR_F(lenv.entries);
2661 obstack_free(&lenv.obst, NULL);
2663 del_pdeq(lenv.waitq);
2666 /* Default implementation. */
2667 ir_entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2668 const ir_mode *imode, const ir_mode *omode,
2676 if (imode == omode) {
2677 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2679 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2680 get_mode_name(imode), get_mode_name(omode));
2682 id = new_id_from_str(buf);
2684 ent = new_entity(get_glob_type(), id, method);
2685 set_entity_ld_ident(ent, get_entity_ident(ent));