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
42 #include "irgraph_t.h"
47 #include "dbginfo_t.h"
48 #include "iropt_dbg.h"
62 /** A map from mode to a primitive type. */
63 static pmap *prim_types;
65 /** A map from (op, imode, omode) to Intrinsic functions entities. */
66 static set *intrinsic_fkt;
68 /** A map from (imode, omode) to conv function types. */
69 static set *conv_types;
71 /** A map from a method type to its lowered type. */
72 static pmap *lowered_type;
74 /** The types for the binop and unop intrinsics. */
75 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;
77 /** the debug handle */
78 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
81 * An entry in the (op, imode, omode) -> entity map.
83 typedef struct _op_mode_entry {
84 const ir_op *op; /**< the op */
85 const ir_mode *imode; /**< the input mode */
86 const ir_mode *omode; /**< the output mode */
87 ir_entity *ent; /**< the associated entity of this (op, imode, omode) triple */
91 * An entry in the (imode, omode) -> tp map.
93 typedef struct _conv_tp_entry {
94 const ir_mode *imode; /**< the input mode */
95 const ir_mode *omode; /**< the output mode */
96 ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
100 * Every double word node will be replaced,
101 * we need some store to hold the replacement:
103 typedef struct _node_entry_t {
104 ir_node *low_word; /**< the low word */
105 ir_node *high_word; /**< the high word */
109 MUST_BE_LOWERED = 1, /**< graph must be lowered */
110 CF_CHANGED = 2, /**< control flow was changed */
114 * The lower environment.
116 typedef struct _lower_env_t {
117 node_entry_t **entries; /**< entries per node */
118 struct obstack obst; /**< an obstack holding the temporary data */
119 tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
120 tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
121 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
122 pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
123 const lwrdw_param_t *params; /**< transformation parameter */
124 unsigned flags; /**< some flags */
125 int n_entries; /**< number of entries */
129 * Get a primitive mode for a mode.
131 static ir_type *get_primitive_type(ir_mode *mode) {
132 pmap_entry *entry = pmap_find(prim_types, mode);
139 snprintf(buf, sizeof(buf), "_prim_%s", get_mode_name(mode));
140 tp = new_type_primitive(new_id_from_str(buf), mode);
142 pmap_insert(prim_types, mode, tp);
144 } /* get_primitive_type */
147 * Create a method type for a Conv emulation from imode to omode.
149 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env) {
150 conv_tp_entry_t key, *entry;
157 entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
159 int n_param = 1, n_res = 1;
162 if (imode == env->params->high_signed || imode == env->params->high_unsigned)
164 if (omode == env->params->high_signed || omode == env->params->high_unsigned)
167 /* create a new one */
168 snprintf(buf, sizeof(buf), "LConv%s%s", get_mode_name(imode), get_mode_name(omode));
169 mtd = new_type_method(new_id_from_str(buf), n_param, n_res);
171 /* set param types and result types */
173 if (imode == env->params->high_signed) {
174 set_method_param_type(mtd, n_param++, tp_u);
175 set_method_param_type(mtd, n_param++, tp_s);
176 } else if (imode == env->params->high_unsigned) {
177 set_method_param_type(mtd, n_param++, tp_u);
178 set_method_param_type(mtd, n_param++, tp_u);
180 ir_type *tp = get_primitive_type(imode);
181 set_method_param_type(mtd, n_param++, tp);
185 if (omode == env->params->high_signed) {
186 set_method_res_type(mtd, n_res++, tp_u);
187 set_method_res_type(mtd, n_res++, tp_s);
188 } else if (omode == env->params->high_unsigned) {
189 set_method_res_type(mtd, n_res++, tp_u);
190 set_method_res_type(mtd, n_res++, tp_u);
192 ir_type *tp = get_primitive_type(omode);
193 set_method_res_type(mtd, n_res++, tp);
200 } /* get_conv_type */
203 * Add an additional control flow input to a block.
204 * Patch all Phi nodes. The new Phi inputs are copied from
205 * old input number nr.
207 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
209 int i, arity = get_irn_arity(block);
214 NEW_ARR_A(ir_node *, in, arity + 1);
215 for (i = 0; i < arity; ++i)
216 in[i] = get_irn_n(block, i);
219 set_irn_in(block, i + 1, in);
221 for (phi = get_irn_link(block); phi; phi = get_irn_link(phi)) {
222 for (i = 0; i < arity; ++i)
223 in[i] = get_irn_n(phi, i);
225 set_irn_in(phi, i + 1, in);
227 } /* add_block_cf_input_nr */
230 * Add an additional control flow input to a block.
231 * Patch all Phi nodes. The new Phi inputs are copied from
232 * old input from cf tmpl.
234 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
236 int i, arity = get_irn_arity(block);
239 for (i = 0; i < arity; ++i) {
240 if (get_irn_n(block, i) == tmpl) {
246 add_block_cf_input_nr(block, nr, cf);
247 } /* add_block_cf_input */
250 * Return the "operational" mode of a Firm node.
252 static ir_mode *get_irn_op_mode(ir_node *node)
254 switch (get_irn_opcode(node)) {
256 return get_Load_mode(node);
258 return get_irn_mode(get_Store_value(node));
260 return get_irn_mode(get_DivMod_left(node));
262 return get_irn_mode(get_Div_left(node));
264 return get_irn_mode(get_Mod_left(node));
266 return get_irn_mode(get_Cmp_left(node));
268 return get_irn_mode(node);
270 } /* get_irn_op_mode */
273 * Walker, prepare the node links.
275 static void prepare_links(ir_node *node, void *env)
277 lower_env_t *lenv = env;
278 ir_mode *mode = get_irn_op_mode(node);
282 if (mode == lenv->params->high_signed ||
283 mode == lenv->params->high_unsigned) {
284 /* ok, found a node that will be lowered */
285 link = obstack_alloc(&lenv->obst, sizeof(*link));
287 memset(link, 0, sizeof(*link));
289 lenv->entries[get_irn_idx(node)] = link;
290 lenv->flags |= MUST_BE_LOWERED;
291 } else if (is_Conv(node)) {
292 /* Conv nodes have two modes */
293 ir_node *pred = get_Conv_op(node);
294 mode = get_irn_mode(pred);
296 if (mode == lenv->params->high_signed ||
297 mode == lenv->params->high_unsigned) {
298 /* must lower this node either but don't need a link */
299 lenv->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);
315 set_irn_link(node, get_irn_link(block));
316 set_irn_link(block, node);
317 } else if (is_Block(node)) {
318 /* fill the Proj -> Block map */
319 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
320 ir_node *pred = get_Block_cfgpred(node, i);
323 pmap_insert(lenv->proj_2_block, pred, node);
326 } /* prepare_links */
329 * Translate a Constant: create two.
331 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env) {
332 tarval *tv, *tv_l, *tv_h;
334 dbg_info *dbg = get_irn_dbg_info(node);
335 ir_node *block = get_nodes_block(node);
337 ir_graph *irg = current_ir_graph;
338 ir_mode *low_mode = env->params->low_unsigned;
340 tv = get_Const_tarval(node);
342 tv_l = tarval_convert_to(tv, low_mode);
343 low = new_rd_Const(dbg, irg, block, low_mode, tv_l);
345 tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
346 high = new_rd_Const(dbg, irg, block, mode, tv_h);
348 idx = get_irn_idx(node);
349 assert(idx < env->n_entries);
350 env->entries[idx]->low_word = low;
351 env->entries[idx]->high_word = high;
355 * Translate a Load: create two.
357 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
358 ir_mode *low_mode = env->params->low_unsigned;
359 ir_graph *irg = current_ir_graph;
360 ir_node *adr = get_Load_ptr(node);
361 ir_node *mem = get_Load_mem(node);
362 ir_node *low, *high, *proj;
364 ir_node *block = get_nodes_block(node);
367 if (env->params->little_endian) {
369 high = new_r_Add(irg, block, adr,
370 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
373 low = new_r_Add(irg, block, adr,
374 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
379 /* create two loads */
380 dbg = get_irn_dbg_info(node);
381 low = new_rd_Load(dbg, irg, block, mem, low, low_mode);
382 proj = new_r_Proj(irg, block, low, mode_M, pn_Load_M);
383 high = new_rd_Load(dbg, irg, block, proj, high, mode);
385 set_Load_volatility(low, get_Load_volatility(node));
386 set_Load_volatility(high, get_Load_volatility(node));
388 idx = get_irn_idx(node);
389 assert(idx < env->n_entries);
390 env->entries[idx]->low_word = low;
391 env->entries[idx]->high_word = high;
393 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
394 idx = get_irn_idx(proj);
396 switch (get_Proj_proj(proj)) {
397 case pn_Load_M: /* Memory result. */
398 /* put it to the second one */
399 set_Proj_pred(proj, high);
401 case pn_Load_X_except: /* Execution result if exception occurred. */
402 /* put it to the first one */
403 set_Proj_pred(proj, low);
405 case pn_Load_res: /* Result of load operation. */
406 assert(idx < env->n_entries);
407 env->entries[idx]->low_word = new_r_Proj(irg, block, low, low_mode, pn_Load_res);
408 env->entries[idx]->high_word = new_r_Proj(irg, block, high, mode, pn_Load_res);
411 assert(0 && "unexpected Proj number");
413 /* mark this proj: we have handled it already, otherwise we might fall into
415 mark_irn_visited(proj);
420 * Translate a Store: create two.
422 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
424 ir_node *block, *adr, *mem;
425 ir_node *low, *high, *irn, *proj;
432 irn = get_Store_value(node);
433 entry = env->entries[get_irn_idx(irn)];
436 if (! entry->low_word) {
437 /* not ready yet, wait */
438 pdeq_putr(env->waitq, node);
442 irg = current_ir_graph;
443 adr = get_Store_ptr(node);
444 mem = get_Store_mem(node);
445 block = get_nodes_block(node);
447 if (env->params->little_endian) {
449 high = new_r_Add(irg, block, adr,
450 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
453 low = new_r_Add(irg, block, adr,
454 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
459 /* create two Stores */
460 dbg = get_irn_dbg_info(node);
461 low = new_rd_Store(dbg, irg, block, mem, low, entry->low_word);
462 proj = new_r_Proj(irg, block, low, mode_M, pn_Store_M);
463 high = new_rd_Store(dbg, irg, block, proj, high, entry->high_word);
465 set_Store_volatility(low, get_Store_volatility(node));
466 set_Store_volatility(high, get_Store_volatility(node));
468 idx = get_irn_idx(node);
469 assert(idx < env->n_entries);
470 env->entries[idx]->low_word = low;
471 env->entries[idx]->high_word = high;
473 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
474 idx = get_irn_idx(proj);
476 switch (get_Proj_proj(proj)) {
477 case pn_Store_M: /* Memory result. */
478 /* put it to the second one */
479 set_Proj_pred(proj, high);
481 case pn_Store_X_except: /* Execution result if exception occurred. */
482 /* put it to the first one */
483 set_Proj_pred(proj, low);
486 assert(0 && "unexpected Proj number");
488 /* mark this proj: we have handled it already, otherwise we might fall into
490 mark_irn_visited(proj);
495 * Return a node containing the address of the intrinsic emulation function.
497 * @param method the method type of the emulation function
498 * @param op the emulated ir_op
499 * @param imode the input mode of the emulated opcode
500 * @param omode the output mode of the emulated opcode
501 * @param block where the new mode is created
502 * @param env the lower environment
504 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
505 ir_mode *imode, ir_mode *omode,
506 ir_node *block, lower_env_t *env) {
509 op_mode_entry_t key, *entry;
516 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
517 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
519 /* create a new one */
520 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
522 assert(ent && "Intrinsic creator must return an entity");
528 return new_r_SymConst(current_ir_graph, block, mode_P_code, sym, symconst_addr_ent);
529 } /* get_intrinsic_address */
534 * Create an intrinsic Call.
536 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env) {
537 ir_node *block, *irn, *call, *proj;
546 irn = get_Div_left(node);
547 entry = env->entries[get_irn_idx(irn)];
550 if (! entry->low_word) {
551 /* not ready yet, wait */
552 pdeq_putr(env->waitq, node);
556 in[0] = entry->low_word;
557 in[1] = entry->high_word;
559 irn = get_Div_right(node);
560 entry = env->entries[get_irn_idx(irn)];
563 if (! entry->low_word) {
564 /* not ready yet, wait */
565 pdeq_putr(env->waitq, node);
569 in[2] = entry->low_word;
570 in[3] = entry->high_word;
572 dbg = get_irn_dbg_info(node);
573 block = get_nodes_block(node);
574 irg = current_ir_graph;
576 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
577 opmode = get_irn_op_mode(node);
578 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
579 call = new_rd_Call(dbg, irg, block, get_Div_mem(node),
581 set_irn_pinned(call, get_irn_pinned(node));
582 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
584 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
585 switch (get_Proj_proj(proj)) {
586 case pn_Div_M: /* Memory result. */
587 /* reroute to the call */
588 set_Proj_pred(proj, call);
589 set_Proj_proj(proj, pn_Call_M_except);
591 case pn_Div_X_except: /* Execution result if exception occurred. */
592 /* reroute to the call */
593 set_Proj_pred(proj, call);
594 set_Proj_proj(proj, pn_Call_X_except);
596 case pn_Div_res: /* Result of computation. */
597 idx = get_irn_idx(proj);
598 assert(idx < env->n_entries);
599 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, env->params->low_unsigned, 0);
600 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
603 assert(0 && "unexpected Proj number");
605 /* mark this proj: we have handled it already, otherwise we might fall into
607 mark_irn_visited(proj);
614 * Create an intrinsic Call.
616 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env) {
617 ir_node *block, *proj, *irn, *call;
626 irn = get_Mod_left(node);
627 entry = env->entries[get_irn_idx(irn)];
630 if (! entry->low_word) {
631 /* not ready yet, wait */
632 pdeq_putr(env->waitq, node);
636 in[0] = entry->low_word;
637 in[1] = entry->high_word;
639 irn = get_Mod_right(node);
640 entry = env->entries[get_irn_idx(irn)];
643 if (! entry->low_word) {
644 /* not ready yet, wait */
645 pdeq_putr(env->waitq, node);
649 in[2] = entry->low_word;
650 in[3] = entry->high_word;
652 dbg = get_irn_dbg_info(node);
653 block = get_nodes_block(node);
654 irg = current_ir_graph;
656 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
657 opmode = get_irn_op_mode(node);
658 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
659 call = new_rd_Call(dbg, irg, block, get_Mod_mem(node),
661 set_irn_pinned(call, get_irn_pinned(node));
662 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
664 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
665 switch (get_Proj_proj(proj)) {
666 case pn_Mod_M: /* Memory result. */
667 /* reroute to the call */
668 set_Proj_pred(proj, call);
669 set_Proj_proj(proj, pn_Call_M_except);
671 case pn_Mod_X_except: /* Execution result if exception occurred. */
672 /* reroute to the call */
673 set_Proj_pred(proj, call);
674 set_Proj_proj(proj, pn_Call_X_except);
676 case pn_Mod_res: /* Result of computation. */
677 idx = get_irn_idx(proj);
678 assert(idx < env->n_entries);
679 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, env->params->low_unsigned, 0);
680 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
683 assert(0 && "unexpected Proj number");
685 /* mark this proj: we have handled it already, otherwise we might fall into
687 mark_irn_visited(proj);
692 * Translate a DivMod.
694 * Create two intrinsic Calls.
696 static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env) {
697 ir_node *block, *proj, *irn, *mem, *callDiv, *callMod;
698 ir_node *resDiv = NULL;
699 ir_node *resMod = NULL;
709 /* check if both results are needed */
710 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
711 switch (get_Proj_proj(proj)) {
712 case pn_DivMod_res_div: flags |= 1; break;
713 case pn_DivMod_res_mod: flags |= 2; break;
718 irn = get_DivMod_left(node);
719 entry = env->entries[get_irn_idx(irn)];
722 if (! entry->low_word) {
723 /* not ready yet, wait */
724 pdeq_putr(env->waitq, node);
728 in[0] = entry->low_word;
729 in[1] = entry->high_word;
731 irn = get_DivMod_right(node);
732 entry = env->entries[get_irn_idx(irn)];
735 if (! entry->low_word) {
736 /* not ready yet, wait */
737 pdeq_putr(env->waitq, node);
741 in[2] = entry->low_word;
742 in[3] = entry->high_word;
744 dbg = get_irn_dbg_info(node);
745 block = get_nodes_block(node);
746 irg = current_ir_graph;
748 mem = get_DivMod_mem(node);
750 callDiv = callMod = NULL;
751 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
753 opmode = get_irn_op_mode(node);
754 irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, block, env);
755 callDiv = new_rd_Call(dbg, irg, block, mem,
757 set_irn_pinned(callDiv, get_irn_pinned(node));
758 resDiv = new_r_Proj(irg, block, callDiv, mode_T, pn_Call_T_result);
762 mem = new_r_Proj(irg, block, callDiv, mode_M, pn_Call_M);
763 opmode = get_irn_op_mode(node);
764 irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, block, env);
765 callMod = new_rd_Call(dbg, irg, block, mem,
767 set_irn_pinned(callMod, get_irn_pinned(node));
768 resMod = new_r_Proj(irg, block, callMod, mode_T, pn_Call_T_result);
771 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
772 switch (get_Proj_proj(proj)) {
773 case pn_DivMod_M: /* Memory result. */
774 /* reroute to the first call */
775 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
776 set_Proj_proj(proj, pn_Call_M_except);
778 case pn_DivMod_X_except: /* Execution result if exception occurred. */
779 /* reroute to the first call */
780 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
781 set_Proj_proj(proj, pn_Call_X_except);
783 case pn_DivMod_res_div: /* Result of Div. */
784 idx = get_irn_idx(proj);
785 assert(idx < env->n_entries);
786 env->entries[idx]->low_word = new_r_Proj(irg, block, resDiv, env->params->low_unsigned, 0);
787 env->entries[idx]->high_word = new_r_Proj(irg, block, resDiv, mode, 1);
789 case pn_DivMod_res_mod: /* Result of Mod. */
790 idx = get_irn_idx(proj);
791 env->entries[idx]->low_word = new_r_Proj(irg, block, resMod, env->params->low_unsigned, 0);
792 env->entries[idx]->high_word = new_r_Proj(irg, block, resMod, mode, 1);
795 assert(0 && "unexpected Proj number");
797 /* mark this proj: we have handled it already, otherwise we might fall into
799 mark_irn_visited(proj);
806 * Create an intrinsic Call.
808 static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env) {
809 ir_node *block, *irn;
817 irn = get_binop_left(node);
818 entry = env->entries[get_irn_idx(irn)];
821 if (! entry->low_word) {
822 /* not ready yet, wait */
823 pdeq_putr(env->waitq, node);
827 in[0] = entry->low_word;
828 in[1] = entry->high_word;
830 irn = get_binop_right(node);
831 entry = env->entries[get_irn_idx(irn)];
834 if (! entry->low_word) {
835 /* not ready yet, wait */
836 pdeq_putr(env->waitq, node);
840 in[2] = entry->low_word;
841 in[3] = entry->high_word;
843 dbg = get_irn_dbg_info(node);
844 block = get_nodes_block(node);
845 irg = current_ir_graph;
847 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
848 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
849 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
851 set_irn_pinned(irn, get_irn_pinned(node));
852 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
854 idx = get_irn_idx(node);
855 assert(idx < env->n_entries);
856 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, env->params->low_unsigned, 0);
857 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
861 * Translate a Shiftop.
863 * Create an intrinsic Call.
865 static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env) {
866 ir_node *block, *irn;
874 irn = get_binop_left(node);
875 entry = env->entries[get_irn_idx(irn)];
878 if (! entry->low_word) {
879 /* not ready yet, wait */
880 pdeq_putr(env->waitq, node);
884 in[0] = entry->low_word;
885 in[1] = entry->high_word;
887 /* The shift count is always mode_Iu in firm, so there is no need for lowering */
888 in[2] = get_binop_right(node);
890 dbg = get_irn_dbg_info(node);
891 block = get_nodes_block(node);
892 irg = current_ir_graph;
894 mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
895 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
896 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
898 set_irn_pinned(irn, get_irn_pinned(node));
899 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
901 idx = get_irn_idx(node);
902 assert(idx < env->n_entries);
903 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, env->params->low_unsigned, 0);
904 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
905 } /* lower_Shiftop */
908 * Translate a Shr and handle special cases.
910 static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env) {
911 ir_node *right = get_Shr_right(node);
912 ir_graph *irg = current_ir_graph;
914 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
915 tarval *tv = get_Const_tarval(right);
917 if (tarval_is_long(tv) &&
918 get_tarval_long(tv) >= (int) get_mode_size_bits(mode)) {
919 ir_node *block = get_nodes_block(node);
920 ir_node *left = get_Shr_left(node);
922 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
923 int idx = get_irn_idx(left);
925 left = env->entries[idx]->high_word;
926 idx = get_irn_idx(node);
929 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
930 env->entries[idx]->low_word = new_r_Shr(irg, block, left, c, mode);
932 env->entries[idx]->low_word = left;
934 env->entries[idx]->high_word = new_r_Const(irg, block, mode, get_mode_null(mode));
939 lower_Shiftop(node, mode, env);
943 * Translate a Shl and handle special cases.
945 static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env) {
946 ir_node *right = get_Shl_right(node);
947 ir_graph *irg = current_ir_graph;
949 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
950 tarval *tv = get_Const_tarval(right);
952 if (tarval_is_long(tv) &&
953 get_tarval_long(tv) >= (int) get_mode_size_bits(mode)) {
955 ir_node *block = get_nodes_block(node);
956 ir_node *left = get_Shl_left(node);
958 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
959 int idx = get_irn_idx(left);
961 left = new_r_Conv(irg, block, env->entries[idx]->low_word, mode);
962 idx = get_irn_idx(node);
965 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
966 env->entries[idx]->high_word = new_r_Shl(irg, block, left, c, mode);
968 env->entries[idx]->high_word = left;
970 mode_l = env->params->low_unsigned;
971 env->entries[idx]->low_word = new_r_Const(irg, block, mode_l, get_mode_null(mode_l));
976 lower_Shiftop(node, mode, env);
980 * Translate a Shrs and handle special cases.
982 static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env) {
983 ir_node *right = get_Shrs_right(node);
984 ir_graph *irg = current_ir_graph;
986 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
987 tarval *tv = get_Const_tarval(right);
989 if (tarval_is_long(tv) &&
990 get_tarval_long(tv) >= (int) get_mode_size_bits(mode)) {
991 ir_node *block = get_nodes_block(node);
992 ir_node *left = get_Shrs_left(node);
993 long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
995 int idx = get_irn_idx(left);
997 left = env->entries[idx]->high_word;
998 idx = get_irn_idx(node);
1001 c = new_r_Const_long(irg, block, mode_Iu, shf_cnt);
1002 env->entries[idx]->low_word = new_r_Shrs(irg, block, left, c, mode);
1004 env->entries[idx]->low_word = left;
1006 c = new_r_Const_long(irg, block, mode_Iu, get_mode_size_bits(mode) - 1);
1007 env->entries[idx]->high_word = new_r_Shrs(irg, block, left, c, mode);
1012 lower_Shiftop(node, mode, env);
1016 * Translate a Rot and handle special cases.
1018 static void lower_Rot(ir_node *node, ir_mode *mode, lower_env_t *env) {
1019 ir_node *right = get_Rot_right(node);
1021 if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
1022 tarval *tv = get_Const_tarval(right);
1024 if (tarval_is_long(tv) &&
1025 get_tarval_long(tv) == (int) get_mode_size_bits(mode)) {
1026 ir_node *left = get_Rot_left(node);
1028 int idx = get_irn_idx(left);
1030 l = env->entries[idx]->low_word;
1031 h = env->entries[idx]->high_word;
1032 idx = get_irn_idx(node);
1034 env->entries[idx]->low_word = h;
1035 env->entries[idx]->high_word = l;
1040 lower_Shiftop(node, mode, env);
1044 * Translate an Unop.
1046 * Create an intrinsic Call.
1048 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
1049 ir_node *block, *irn;
1055 node_entry_t *entry;
1057 irn = get_unop_op(node);
1058 entry = env->entries[get_irn_idx(irn)];
1061 if (! entry->low_word) {
1062 /* not ready yet, wait */
1063 pdeq_putr(env->waitq, node);
1067 in[0] = entry->low_word;
1068 in[1] = entry->high_word;
1070 dbg = get_irn_dbg_info(node);
1071 block = get_nodes_block(node);
1072 irg = current_ir_graph;
1074 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
1075 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
1076 irn = new_rd_Call(dbg, irg, block, get_irg_no_mem(current_ir_graph),
1078 set_irn_pinned(irn, get_irn_pinned(node));
1079 irn = new_r_Proj(irg, block, irn, mode_T, pn_Call_T_result);
1081 idx = get_irn_idx(node);
1082 assert(idx < env->n_entries);
1083 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, env->params->low_unsigned, 0);
1084 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, mode, 1);
1088 * Translate a logical Binop.
1090 * Create two logical Binops.
1092 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
1093 ir_node *(*constr_rd)(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
1094 ir_node *block, *irn;
1095 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
1099 node_entry_t *entry;
1101 irn = get_binop_left(node);
1102 entry = env->entries[get_irn_idx(irn)];
1105 if (! entry->low_word) {
1106 /* not ready yet, wait */
1107 pdeq_putr(env->waitq, node);
1111 lop_l = entry->low_word;
1112 lop_h = entry->high_word;
1114 irn = get_binop_right(node);
1115 entry = env->entries[get_irn_idx(irn)];
1118 if (! entry->low_word) {
1119 /* not ready yet, wait */
1120 pdeq_putr(env->waitq, node);
1124 rop_l = entry->low_word;
1125 rop_h = entry->high_word;
1127 dbg = get_irn_dbg_info(node);
1128 block = get_nodes_block(node);
1130 idx = get_irn_idx(node);
1131 assert(idx < env->n_entries);
1132 irg = current_ir_graph;
1133 env->entries[idx]->low_word = constr_rd(dbg, irg, block, lop_l, rop_l, env->params->low_unsigned);
1134 env->entries[idx]->high_word = constr_rd(dbg, irg, block, lop_h, rop_h, mode);
1135 } /* lower_Binop_logical */
1137 /** create a logical operation tranformation */
1138 #define lower_logical(op) \
1139 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
1140 lower_Binop_logical(node, mode, env, new_rd_##op); \
1150 * Create two logical Nots.
1152 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env) {
1153 ir_node *block, *irn;
1154 ir_node *op_l, *op_h;
1158 node_entry_t *entry;
1160 irn = get_Not_op(node);
1161 entry = env->entries[get_irn_idx(irn)];
1164 if (! entry->low_word) {
1165 /* not ready yet, wait */
1166 pdeq_putr(env->waitq, node);
1170 op_l = entry->low_word;
1171 op_h = entry->high_word;
1173 dbg = get_irn_dbg_info(node);
1174 block = get_nodes_block(node);
1175 irg = current_ir_graph;
1177 idx = get_irn_idx(node);
1178 assert(idx < env->n_entries);
1179 env->entries[idx]->low_word = new_rd_Not(dbg, current_ir_graph, block, op_l, env->params->low_unsigned);
1180 env->entries[idx]->high_word = new_rd_Not(dbg, current_ir_graph, block, op_h, mode);
1186 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env) {
1187 ir_node *cmp, *left, *right, *block;
1188 ir_node *sel = get_Cond_selector(node);
1189 ir_mode *m = get_irn_mode(sel);
1194 node_entry_t *lentry, *rentry;
1195 ir_node *proj, *projT = NULL, *projF = NULL;
1196 ir_node *new_bl, *cmpH, *cmpL, *irn;
1197 ir_node *projHF, *projHT;
1206 cmp = get_Proj_pred(sel);
1210 left = get_Cmp_left(cmp);
1211 idx = get_irn_idx(left);
1212 lentry = env->entries[idx];
1219 right = get_Cmp_right(cmp);
1220 idx = get_irn_idx(right);
1221 rentry = env->entries[idx];
1224 if (! lentry->low_word || !rentry->low_word) {
1226 pdeq_putr(env->waitq, node);
1230 /* all right, build the code */
1231 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1232 long proj_nr = get_Proj_proj(proj);
1234 if (proj_nr == pn_Cond_true) {
1235 assert(projT == NULL && "more than one Proj(true)");
1238 assert(proj_nr == pn_Cond_false);
1239 assert(projF == NULL && "more than one Proj(false)");
1242 mark_irn_visited(proj);
1244 assert(projT && projF);
1246 /* create a new high compare */
1247 block = get_nodes_block(node);
1248 dbg = get_irn_dbg_info(cmp);
1249 irg = current_ir_graph;
1250 pnc = get_Proj_proj(sel);
1252 if (is_Const(right) && is_Const_null(right)) {
1253 if (pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) {
1254 /* x ==/!= 0 ==> or(low,high) ==/!= 0 */
1255 ir_mode *mode = env->params->low_unsigned;
1256 ir_node *low = new_r_Conv(irg, block, lentry->low_word, mode);
1257 ir_node *high = new_r_Conv(irg, block, lentry->high_word, mode);
1258 ir_node *or = new_rd_Or(dbg, irg, block, low, high, mode);
1259 ir_node *cmp = new_rd_Cmp(dbg, irg, block, or, new_Const_long(mode, 0));
1261 ir_node *proj = new_r_Proj(irg, block, cmp, mode_b, pnc);
1262 set_Cond_selector(node, proj);
1267 cmpH = new_rd_Cmp(dbg, irg, block, lentry->high_word, rentry->high_word);
1269 if (pnc == pn_Cmp_Eq) {
1270 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1271 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1274 dst_blk = entry->value;
1276 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Eq);
1277 dbg = get_irn_dbg_info(node);
1278 irn = new_rd_Cond(dbg, irg, block, irn);
1280 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1281 mark_irn_visited(projHF);
1282 exchange(projF, projHF);
1284 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1285 mark_irn_visited(projHT);
1287 new_bl = new_r_Block(irg, 1, &projHT);
1289 dbg = get_irn_dbg_info(cmp);
1290 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1291 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Eq);
1292 dbg = get_irn_dbg_info(node);
1293 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1295 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1296 mark_irn_visited(proj);
1297 add_block_cf_input(dst_blk, projHF, proj);
1299 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1300 mark_irn_visited(proj);
1301 exchange(projT, proj);
1302 } else if (pnc == pn_Cmp_Lg) {
1303 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1304 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1307 dst_blk = entry->value;
1309 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Lg);
1310 dbg = get_irn_dbg_info(node);
1311 irn = new_rd_Cond(dbg, irg, block, irn);
1313 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1314 mark_irn_visited(projHT);
1315 exchange(projT, projHT);
1317 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1318 mark_irn_visited(projHF);
1320 new_bl = new_r_Block(irg, 1, &projHF);
1322 dbg = get_irn_dbg_info(cmp);
1323 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1324 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Lg);
1325 dbg = get_irn_dbg_info(node);
1326 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1328 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1329 mark_irn_visited(proj);
1330 add_block_cf_input(dst_blk, projHT, proj);
1332 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1333 mark_irn_visited(proj);
1334 exchange(projF, proj);
1336 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
1337 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1340 entry = pmap_find(env->proj_2_block, projT);
1342 dstT = entry->value;
1344 entry = pmap_find(env->proj_2_block, projF);
1346 dstF = entry->value;
1348 irn = new_r_Proj(irg, block, cmpH, mode_b, pnc & ~pn_Cmp_Eq);
1349 dbg = get_irn_dbg_info(node);
1350 irn = new_rd_Cond(dbg, irg, block, irn);
1352 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1353 mark_irn_visited(projHT);
1354 exchange(projT, projHT);
1357 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1358 mark_irn_visited(projHF);
1360 newbl_eq = new_r_Block(irg, 1, &projHF);
1362 irn = new_r_Proj(irg, newbl_eq, cmpH, mode_b, pn_Cmp_Eq);
1363 irn = new_rd_Cond(dbg, irg, newbl_eq, irn);
1365 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_false);
1366 mark_irn_visited(proj);
1367 exchange(projF, proj);
1370 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_true);
1371 mark_irn_visited(proj);
1373 newbl_l = new_r_Block(irg, 1, &proj);
1375 dbg = get_irn_dbg_info(cmp);
1376 cmpL = new_rd_Cmp(dbg, irg, newbl_l, lentry->low_word, rentry->low_word);
1377 irn = new_r_Proj(irg, newbl_l, cmpL, mode_b, pnc);
1378 dbg = get_irn_dbg_info(node);
1379 irn = new_rd_Cond(dbg, irg, newbl_l, irn);
1381 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_true);
1382 mark_irn_visited(proj);
1383 add_block_cf_input(dstT, projT, proj);
1385 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_false);
1386 mark_irn_visited(proj);
1387 add_block_cf_input(dstF, projF, proj);
1390 /* we have changed the control flow */
1391 env->flags |= CF_CHANGED;
1393 idx = get_irn_idx(sel);
1395 if (env->entries[idx]) {
1397 Bad, a jump-table with double-word index.
1398 This should not happen, but if it does we handle
1399 it like a Conv were between (in other words, ignore
1403 if (! env->entries[idx]->low_word) {
1404 /* not ready yet, wait */
1405 pdeq_putr(env->waitq, node);
1408 set_Cond_selector(node, env->entries[idx]->low_word);
1414 * Translate a Conv to higher_signed
1416 static void lower_Conv_to_Ls(ir_node *node, lower_env_t *env) {
1417 ir_node *op = get_Conv_op(node);
1418 ir_mode *imode = get_irn_mode(op);
1419 ir_mode *dst_mode_l = env->params->low_unsigned;
1420 ir_mode *dst_mode_h = env->params->low_signed;
1421 int idx = get_irn_idx(node);
1422 ir_graph *irg = current_ir_graph;
1423 ir_node *block = get_nodes_block(node);
1424 dbg_info *dbg = get_irn_dbg_info(node);
1426 assert(idx < env->n_entries);
1428 if (mode_is_int(imode) || mode_is_reference(imode)) {
1429 if (imode == env->params->high_unsigned) {
1430 /* a Conv from Lu to Ls */
1431 int op_idx = get_irn_idx(op);
1433 if (! env->entries[op_idx]->low_word) {
1434 /* not ready yet, wait */
1435 pdeq_putr(env->waitq, node);
1438 env->entries[idx]->low_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->low_word, dst_mode_l);
1439 env->entries[idx]->high_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->high_word, dst_mode_h);
1441 /* simple case: create a high word */
1442 if (imode != dst_mode_l)
1443 op = new_rd_Conv(dbg, irg, block, op, dst_mode_l);
1445 env->entries[idx]->low_word = op;
1447 if (mode_is_signed(imode)) {
1448 ir_node *op_conv = new_rd_Conv(dbg, irg, block, op, dst_mode_h);
1449 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op_conv,
1450 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode_h) - 1), dst_mode_h);
1452 env->entries[idx]->high_word = new_Const(dst_mode_h, get_mode_null(dst_mode_h));
1456 ir_node *irn, *call;
1457 ir_mode *omode = env->params->high_signed;
1458 ir_type *mtp = get_conv_type(imode, omode, env);
1460 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1461 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1462 set_irn_pinned(call, get_irn_pinned(node));
1463 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1465 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode_l, 0);
1466 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode_h, 1);
1468 } /* lower_Conv_to_Ls */
1471 * Translate a Conv to higher_unsigned
1473 static void lower_Conv_to_Lu(ir_node *node, lower_env_t *env) {
1474 ir_node *op = get_Conv_op(node);
1475 ir_mode *imode = get_irn_mode(op);
1476 ir_mode *dst_mode = env->params->low_unsigned;
1477 int idx = get_irn_idx(node);
1478 ir_graph *irg = current_ir_graph;
1479 ir_node *block = get_nodes_block(node);
1480 dbg_info *dbg = get_irn_dbg_info(node);
1482 assert(idx < env->n_entries);
1484 if (mode_is_int(imode) || mode_is_reference(imode)) {
1485 if (imode == env->params->high_signed) {
1486 /* a Conv from Ls to Lu */
1487 int op_idx = get_irn_idx(op);
1489 if (! env->entries[op_idx]->low_word) {
1490 /* not ready yet, wait */
1491 pdeq_putr(env->waitq, node);
1494 env->entries[idx]->low_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->low_word, dst_mode);
1495 env->entries[idx]->high_word = new_rd_Conv(dbg, irg, block, env->entries[op_idx]->high_word, dst_mode);
1497 /* simple case: create a high word */
1498 if (imode != dst_mode)
1499 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1501 env->entries[idx]->low_word = op;
1503 if (mode_is_signed(imode)) {
1504 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op,
1505 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode) - 1), dst_mode);
1507 env->entries[idx]->high_word = new_Const(dst_mode, get_mode_null(dst_mode));
1511 ir_node *irn, *call;
1512 ir_mode *omode = env->params->high_unsigned;
1513 ir_type *mtp = get_conv_type(imode, omode, env);
1515 /* do an intrinsic call */
1516 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1517 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1518 set_irn_pinned(call, get_irn_pinned(node));
1519 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1521 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1522 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1524 } /* lower_Conv_to_Lu */
1527 * Translate a Conv from higher_signed
1529 static void lower_Conv_from_Ls(ir_node *node, lower_env_t *env) {
1530 ir_node *op = get_Conv_op(node);
1531 ir_mode *omode = get_irn_mode(node);
1532 ir_node *block = get_nodes_block(node);
1533 dbg_info *dbg = get_irn_dbg_info(node);
1534 int idx = get_irn_idx(op);
1535 ir_graph *irg = current_ir_graph;
1537 assert(idx < env->n_entries);
1539 if (! env->entries[idx]->low_word) {
1540 /* not ready yet, wait */
1541 pdeq_putr(env->waitq, node);
1545 if (mode_is_int(omode) || mode_is_reference(omode)) {
1546 op = env->entries[idx]->low_word;
1548 /* simple case: create a high word */
1549 if (omode != env->params->low_signed)
1550 op = new_rd_Conv(dbg, irg, block, op, omode);
1552 set_Conv_op(node, op);
1554 ir_node *irn, *call, *in[2];
1555 ir_mode *imode = env->params->high_signed;
1556 ir_type *mtp = get_conv_type(imode, omode, env);
1558 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1559 in[0] = env->entries[idx]->low_word;
1560 in[1] = env->entries[idx]->high_word;
1562 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1563 set_irn_pinned(call, get_irn_pinned(node));
1564 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1566 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1568 } /* lower_Conv_from_Ls */
1571 * Translate a Conv from higher_unsigned
1573 static void lower_Conv_from_Lu(ir_node *node, lower_env_t *env) {
1574 ir_node *op = get_Conv_op(node);
1575 ir_mode *omode = get_irn_mode(node);
1576 ir_node *block = get_nodes_block(node);
1577 dbg_info *dbg = get_irn_dbg_info(node);
1578 int idx = get_irn_idx(op);
1579 ir_graph *irg = current_ir_graph;
1581 assert(idx < env->n_entries);
1583 if (! env->entries[idx]->low_word) {
1584 /* not ready yet, wait */
1585 pdeq_putr(env->waitq, node);
1589 if (mode_is_int(omode) || mode_is_reference(omode)) {
1590 op = env->entries[idx]->low_word;
1592 /* simple case: create a high word */
1593 if (omode != env->params->low_unsigned)
1594 op = new_rd_Conv(dbg, irg, block, op, omode);
1596 set_Conv_op(node, op);
1598 ir_node *irn, *call, *in[2];
1599 ir_mode *imode = env->params->high_unsigned;
1600 ir_type *mtp = get_conv_type(imode, omode, env);
1602 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1603 in[0] = env->entries[idx]->low_word;
1604 in[1] = env->entries[idx]->high_word;
1606 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1607 set_irn_pinned(call, get_irn_pinned(node));
1608 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1610 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1612 } /* lower_Conv_from_Lu */
1617 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env) {
1618 mode = get_irn_mode(node);
1620 if (mode == env->params->high_signed) {
1621 lower_Conv_to_Ls(node, env);
1622 } else if (mode == env->params->high_unsigned) {
1623 lower_Conv_to_Lu(node, env);
1625 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1627 if (mode == env->params->high_signed) {
1628 lower_Conv_from_Ls(node, env);
1629 } else if (mode == env->params->high_unsigned) {
1630 lower_Conv_from_Lu(node, env);
1636 * Lower the method type.
1638 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env) {
1643 if (is_lowered_type(mtp))
1646 entry = pmap_find(lowered_type, mtp);
1648 int i, n, r, n_param, n_res;
1650 /* count new number of params */
1651 n_param = n = get_method_n_params(mtp);
1652 for (i = n_param - 1; i >= 0; --i) {
1653 ir_type *tp = get_method_param_type(mtp, i);
1655 if (is_Primitive_type(tp)) {
1656 ir_mode *mode = get_type_mode(tp);
1658 if (mode == env->params->high_signed ||
1659 mode == env->params->high_unsigned)
1664 /* count new number of results */
1665 n_res = r = get_method_n_ress(mtp);
1666 for (i = n_res - 1; i >= 0; --i) {
1667 ir_type *tp = get_method_res_type(mtp, i);
1669 if (is_Primitive_type(tp)) {
1670 ir_mode *mode = get_type_mode(tp);
1672 if (mode == env->params->high_signed ||
1673 mode == env->params->high_unsigned)
1678 id = mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
1679 res = new_type_method(id, n_param, n_res);
1681 /* set param types and result types */
1682 for (i = n_param = 0; i < n; ++i) {
1683 ir_type *tp = get_method_param_type(mtp, i);
1685 if (is_Primitive_type(tp)) {
1686 ir_mode *mode = get_type_mode(tp);
1688 if (mode == env->params->high_signed) {
1689 set_method_param_type(res, n_param++, tp_u);
1690 set_method_param_type(res, n_param++, tp_s);
1691 } else if (mode == env->params->high_unsigned) {
1692 set_method_param_type(res, n_param++, tp_u);
1693 set_method_param_type(res, n_param++, tp_u);
1695 set_method_param_type(res, n_param++, tp);
1698 set_method_param_type(res, n_param++, tp);
1701 for (i = n_res = 0; i < r; ++i) {
1702 ir_type *tp = get_method_res_type(mtp, i);
1704 if (is_Primitive_type(tp)) {
1705 ir_mode *mode = get_type_mode(tp);
1707 if (mode == env->params->high_signed) {
1708 set_method_res_type(res, n_res++, tp_u);
1709 set_method_res_type(res, n_res++, tp_s);
1710 } else if (mode == env->params->high_unsigned) {
1711 set_method_res_type(res, n_res++, tp_u);
1712 set_method_res_type(res, n_res++, tp_u);
1714 set_method_res_type(res, n_res++, tp);
1717 set_method_res_type(res, n_res++, tp);
1720 set_lowered_type(mtp, res);
1721 pmap_insert(lowered_type, mtp, res);
1729 * Translate a Return.
1731 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env) {
1732 ir_graph *irg = current_ir_graph;
1733 ir_entity *ent = get_irg_entity(irg);
1734 ir_type *mtp = get_entity_type(ent);
1740 /* check if this return must be lowered */
1741 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1742 ir_node *pred = get_Return_res(node, i);
1743 ir_mode *mode = get_irn_op_mode(pred);
1745 if (mode == env->params->high_signed ||
1746 mode == env->params->high_unsigned) {
1747 idx = get_irn_idx(pred);
1748 if (! env->entries[idx]->low_word) {
1749 /* not ready yet, wait */
1750 pdeq_putr(env->waitq, node);
1759 ent = get_irg_entity(irg);
1760 mtp = get_entity_type(ent);
1762 mtp = lower_mtp(mtp, env);
1763 set_entity_type(ent, mtp);
1765 /* create a new in array */
1766 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1767 in[0] = get_Return_mem(node);
1769 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1770 ir_node *pred = get_Return_res(node, i);
1772 idx = get_irn_idx(pred);
1773 assert(idx < env->n_entries);
1775 if (env->entries[idx]) {
1776 in[++j] = env->entries[idx]->low_word;
1777 in[++j] = env->entries[idx]->high_word;
1783 set_irn_in(node, j+1, in);
1784 } /* lower_Return */
1787 * Translate the parameters.
1789 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env) {
1790 ir_graph *irg = current_ir_graph;
1791 ir_entity *ent = get_irg_entity(irg);
1792 ir_type *tp = get_entity_type(ent);
1795 int i, j, n_params, rem;
1796 ir_node *proj, *args;
1799 if (is_lowered_type(tp)) {
1800 mtp = get_associated_type(tp);
1804 assert(! is_lowered_type(mtp));
1806 n_params = get_method_n_params(mtp);
1810 NEW_ARR_A(long, new_projs, n_params);
1812 /* first check if we have parameters that must be fixed */
1813 for (i = j = 0; i < n_params; ++i, ++j) {
1814 ir_type *tp = get_method_param_type(mtp, i);
1817 if (is_Primitive_type(tp)) {
1818 ir_mode *mode = get_type_mode(tp);
1820 if (mode == env->params->high_signed ||
1821 mode == env->params->high_unsigned)
1828 mtp = lower_mtp(mtp, env);
1829 set_entity_type(ent, mtp);
1831 /* switch off optimization for new Proj nodes or they might be CSE'ed
1832 with not patched one's */
1833 rem = get_optimize();
1836 /* ok, fix all Proj's and create new ones */
1837 args = get_irg_args(irg);
1838 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1839 ir_node *pred = get_Proj_pred(proj);
1845 /* do not visit this node again */
1846 mark_irn_visited(proj);
1851 proj_nr = get_Proj_proj(proj);
1852 set_Proj_proj(proj, new_projs[proj_nr]);
1854 idx = get_irn_idx(proj);
1855 if (env->entries[idx]) {
1856 ir_mode *low_mode = env->params->low_unsigned;
1858 mode = get_irn_mode(proj);
1860 if (mode == env->params->high_signed) {
1861 mode = env->params->low_signed;
1863 mode = env->params->low_unsigned;
1866 dbg = get_irn_dbg_info(proj);
1867 env->entries[idx]->low_word =
1868 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, low_mode, new_projs[proj_nr]);
1869 env->entries[idx]->high_word =
1870 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr] + 1);
1879 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env) {
1880 ir_graph *irg = current_ir_graph;
1881 ir_type *tp = get_Call_type(node);
1883 ir_node **in, *proj, *results;
1884 int n_params, n_res, need_lower = 0;
1886 long *res_numbers = NULL;
1889 if (is_lowered_type(tp)) {
1890 call_tp = get_associated_type(tp);
1895 assert(! is_lowered_type(call_tp));
1897 n_params = get_method_n_params(call_tp);
1898 for (i = 0; i < n_params; ++i) {
1899 ir_type *tp = get_method_param_type(call_tp, i);
1901 if (is_Primitive_type(tp)) {
1902 ir_mode *mode = get_type_mode(tp);
1904 if (mode == env->params->high_signed ||
1905 mode == env->params->high_unsigned) {
1911 n_res = get_method_n_ress(call_tp);
1913 NEW_ARR_A(long, res_numbers, n_res);
1915 for (i = j = 0; i < n_res; ++i, ++j) {
1916 ir_type *tp = get_method_res_type(call_tp, i);
1919 if (is_Primitive_type(tp)) {
1920 ir_mode *mode = get_type_mode(tp);
1922 if (mode == env->params->high_signed ||
1923 mode == env->params->high_unsigned) {
1934 /* let's lower it */
1935 call_tp = lower_mtp(call_tp, env);
1936 set_Call_type(node, call_tp);
1938 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1940 in[0] = get_Call_mem(node);
1941 in[1] = get_Call_ptr(node);
1943 for (j = 2, i = 0; i < n_params; ++i) {
1944 ir_node *pred = get_Call_param(node, i);
1945 int idx = get_irn_idx(pred);
1947 if (env->entries[idx]) {
1948 if (! env->entries[idx]->low_word) {
1949 /* not ready yet, wait */
1950 pdeq_putr(env->waitq, node);
1953 in[j++] = env->entries[idx]->low_word;
1954 in[j++] = env->entries[idx]->high_word;
1960 set_irn_in(node, j, in);
1962 /* fix the results */
1964 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1965 long proj_nr = get_Proj_proj(proj);
1967 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1968 /* found the result proj */
1974 if (results) { /* there are results */
1975 int rem = get_optimize();
1977 /* switch off optimization for new Proj nodes or they might be CSE'ed
1978 with not patched one's */
1980 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1981 if (get_Proj_pred(proj) == results) {
1982 long proj_nr = get_Proj_proj(proj);
1985 /* found a result */
1986 set_Proj_proj(proj, res_numbers[proj_nr]);
1987 idx = get_irn_idx(proj);
1988 if (env->entries[idx]) {
1989 ir_mode *mode = get_irn_mode(proj);
1990 ir_mode *low_mode = env->params->low_unsigned;
1993 if (mode == env->params->high_signed) {
1994 mode = env->params->low_signed;
1996 mode = env->params->low_unsigned;
1999 dbg = get_irn_dbg_info(proj);
2000 env->entries[idx]->low_word =
2001 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, low_mode, res_numbers[proj_nr]);
2002 env->entries[idx]->high_word =
2003 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr] + 1);
2005 mark_irn_visited(proj);
2013 * Translate an Unknown into two.
2015 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env) {
2016 int idx = get_irn_idx(node);
2017 ir_graph *irg = current_ir_graph;
2018 ir_mode *low_mode = env->params->low_unsigned;
2020 env->entries[idx]->low_word = new_r_Unknown(irg, low_mode);
2021 env->entries[idx]->high_word = new_r_Unknown(irg, mode);
2022 } /* lower_Unknown */
2027 * First step: just create two templates
2029 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env) {
2030 ir_mode *mode_l = env->params->low_unsigned;
2031 ir_graph *irg = current_ir_graph;
2032 ir_node *block, *unk_l, *unk_h, *phi_l, *phi_h;
2033 ir_node **inl, **inh;
2035 int idx, i, arity = get_Phi_n_preds(phi);
2038 idx = get_irn_idx(phi);
2039 if (env->entries[idx]->low_word) {
2040 /* Phi nodes already build, check for inputs */
2041 ir_node *phil = env->entries[idx]->low_word;
2042 ir_node *phih = env->entries[idx]->high_word;
2044 for (i = 0; i < arity; ++i) {
2045 ir_node *pred = get_Phi_pred(phi, i);
2046 int idx = get_irn_idx(pred);
2048 if (env->entries[idx]->low_word) {
2049 set_Phi_pred(phil, i, env->entries[idx]->low_word);
2050 set_Phi_pred(phih, i, env->entries[idx]->high_word);
2052 /* still not ready */
2053 pdeq_putr(env->waitq, phi);
2059 /* first create a new in array */
2060 NEW_ARR_A(ir_node *, inl, arity);
2061 NEW_ARR_A(ir_node *, inh, arity);
2062 unk_l = new_r_Unknown(irg, mode_l);
2063 unk_h = new_r_Unknown(irg, mode);
2065 for (i = 0; i < arity; ++i) {
2066 ir_node *pred = get_Phi_pred(phi, i);
2067 int idx = get_irn_idx(pred);
2069 if (env->entries[idx]->low_word) {
2070 inl[i] = env->entries[idx]->low_word;
2071 inh[i] = env->entries[idx]->high_word;
2079 dbg = get_irn_dbg_info(phi);
2080 block = get_nodes_block(phi);
2082 idx = get_irn_idx(phi);
2083 assert(idx < env->n_entries);
2084 env->entries[idx]->low_word = phi_l = new_rd_Phi(dbg, irg, block, arity, inl, mode_l);
2085 env->entries[idx]->high_word = phi_h = new_rd_Phi(dbg, irg, block, arity, inh, mode);
2087 /* Don't forget to link the new Phi nodes into the block! */
2088 set_irn_link(phi_l, get_irn_link(block));
2089 set_irn_link(phi_h, phi_l);
2090 set_irn_link(block, phi_h);
2093 /* not yet finished */
2094 pdeq_putr(env->waitq, phi);
2101 static void lower_Psi(ir_node *psi, ir_mode *mode, lower_env_t *env) {
2102 ir_graph *irg = current_ir_graph;
2103 ir_node *block, *val;
2104 ir_node **valsl, **valsh, **conds;
2106 int idx, i, n_conds = get_Psi_n_conds(psi);
2108 /* first create a new in array */
2109 NEW_ARR_A(ir_node *, valsl, n_conds + 1);
2110 NEW_ARR_A(ir_node *, valsh, n_conds + 1);
2112 for (i = 0; i < n_conds; ++i) {
2113 val = get_Psi_val(psi, i);
2114 idx = get_irn_idx(val);
2115 if (env->entries[idx]->low_word) {
2116 /* Values already build */
2117 valsl[i] = env->entries[idx]->low_word;
2118 valsh[i] = env->entries[idx]->high_word;
2120 /* still not ready */
2121 pdeq_putr(env->waitq, psi);
2125 val = get_Psi_default(psi);
2126 idx = get_irn_idx(val);
2127 if (env->entries[idx]->low_word) {
2128 /* Values already build */
2129 valsl[i] = env->entries[idx]->low_word;
2130 valsh[i] = env->entries[idx]->high_word;
2132 /* still not ready */
2133 pdeq_putr(env->waitq, psi);
2138 NEW_ARR_A(ir_node *, conds, n_conds);
2139 for (i = 0; i < n_conds; ++i) {
2140 conds[i] = get_Psi_cond(psi, i);
2143 dbg = get_irn_dbg_info(psi);
2144 block = get_nodes_block(psi);
2146 idx = get_irn_idx(psi);
2147 assert(idx < env->n_entries);
2148 env->entries[idx]->low_word = new_rd_Psi(dbg, irg, block, n_conds, conds, valsl, mode);
2149 env->entries[idx]->high_word = new_rd_Psi(dbg, irg, block, n_conds, conds, valsh, mode);
2153 * check for opcodes that must always be lowered.
2155 static int always_lower(ir_opcode code) {
2167 } /* always_lower */
2170 * lower boolean Proj(Cmp)
2172 static ir_node *lower_boolean_Proj_Cmp(ir_node *proj, ir_node *cmp, lower_env_t *env) {
2174 ir_node *l, *r, *low, *high, *t, *res;
2177 ir_graph *irg = current_ir_graph;
2180 l = get_Cmp_left(cmp);
2181 lidx = get_irn_idx(l);
2182 if (! env->entries[lidx]->low_word) {
2183 /* still not ready */
2187 r = get_Cmp_right(cmp);
2188 ridx = get_irn_idx(r);
2189 if (! env->entries[ridx]->low_word) {
2190 /* still not ready */
2194 pnc = get_Proj_proj(proj);
2195 blk = get_nodes_block(cmp);
2196 db = get_irn_dbg_info(cmp);
2197 low = new_rd_Cmp(db, irg, blk, env->entries[lidx]->low_word, env->entries[ridx]->low_word);
2198 high = new_rd_Cmp(db, irg, blk, env->entries[lidx]->high_word, env->entries[ridx]->high_word);
2200 if (pnc == pn_Cmp_Eq) {
2201 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
2202 res = new_rd_And(db, irg, blk,
2203 new_r_Proj(irg, blk, low, mode_b, pnc),
2204 new_r_Proj(irg, blk, high, mode_b, pnc),
2206 } else if (pnc == pn_Cmp_Lg) {
2207 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
2208 res = new_rd_Or(db, irg, blk,
2209 new_r_Proj(irg, blk, low, mode_b, pnc),
2210 new_r_Proj(irg, blk, high, mode_b, pnc),
2213 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
2214 t = new_rd_And(db, irg, blk,
2215 new_r_Proj(irg, blk, low, mode_b, pnc),
2216 new_r_Proj(irg, blk, high, mode_b, pn_Cmp_Eq),
2218 res = new_rd_Or(db, irg, blk,
2219 new_r_Proj(irg, blk, high, mode_b, pnc & ~pn_Cmp_Eq),
2224 } /* lower_boolean_Proj_Cmp */
2227 * The type of a lower function.
2229 * @param node the node to be lowered
2230 * @param mode the low mode for the destination node
2231 * @param env the lower environment
2233 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
2238 static void lower_ops(ir_node *node, void *env)
2240 lower_env_t *lenv = env;
2241 node_entry_t *entry;
2242 int idx = get_irn_idx(node);
2243 ir_mode *mode = get_irn_mode(node);
2245 if (mode == mode_b || is_Psi(node) || is_Conv(node)) {
2248 for (i = get_irn_arity(node) - 1; i >= 0; --i) {
2249 ir_node *proj = get_irn_n(node, i);
2251 if (is_Proj(proj)) {
2252 ir_node *cmp = get_Proj_pred(proj);
2255 ir_node *arg = get_Cmp_left(cmp);
2257 mode = get_irn_mode(arg);
2258 if (mode == lenv->params->high_signed ||
2259 mode == lenv->params->high_unsigned) {
2260 ir_node *res = lower_boolean_Proj_Cmp(proj, cmp, lenv);
2263 /* could not lower because predecessors not ready */
2264 waitq_put(lenv->waitq, node);
2267 set_irn_n(node, i, res);
2274 entry = idx < lenv->n_entries ? lenv->entries[idx] : NULL;
2275 if (entry || always_lower(get_irn_opcode(node))) {
2276 ir_op *op = get_irn_op(node);
2277 lower_func func = (lower_func)op->ops.generic;
2280 mode = get_irn_op_mode(node);
2282 if (mode == lenv->params->high_signed)
2283 mode = lenv->params->low_signed;
2285 mode = lenv->params->low_unsigned;
2287 DB((dbg, LEVEL_1, " %+F\n", node));
2288 func(node, mode, lenv);
2293 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
2296 * Compare two op_mode_entry_t's.
2298 static int cmp_op_mode(const void *elt, const void *key, size_t size) {
2299 const op_mode_entry_t *e1 = elt;
2300 const op_mode_entry_t *e2 = key;
2303 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
2307 * Compare two conv_tp_entry_t's.
2309 static int cmp_conv_tp(const void *elt, const void *key, size_t size) {
2310 const conv_tp_entry_t *e1 = elt;
2311 const conv_tp_entry_t *e2 = key;
2314 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
2315 } /* static int cmp_conv_tp */
2318 * Enter a lowering function into an ir_op.
2320 static void enter_lower_func(ir_op *op, lower_func func) {
2321 op->ops.generic = (op_func)func;
2327 void lower_dw_ops(const lwrdw_param_t *param)
2336 if (! param->enable)
2339 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
2341 assert(2 * get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->high_signed));
2342 assert(2 * get_mode_size_bits(param->low_unsigned) == get_mode_size_bits(param->high_unsigned));
2343 assert(get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->low_unsigned));
2345 /* create the necessary maps */
2347 prim_types = pmap_create();
2348 if (! intrinsic_fkt)
2349 intrinsic_fkt = new_set(cmp_op_mode, iro_Last + 1);
2351 conv_types = new_set(cmp_conv_tp, 16);
2353 lowered_type = pmap_create();
2355 /* create a primitive unsigned and signed type */
2357 tp_u = get_primitive_type(param->low_unsigned);
2359 tp_s = get_primitive_type(param->low_signed);
2361 /* create method types for the created binop calls */
2363 binop_tp_u = new_type_method(IDENT("binop_u_intrinsic"), 4, 2);
2364 set_method_param_type(binop_tp_u, 0, tp_u);
2365 set_method_param_type(binop_tp_u, 1, tp_u);
2366 set_method_param_type(binop_tp_u, 2, tp_u);
2367 set_method_param_type(binop_tp_u, 3, tp_u);
2368 set_method_res_type(binop_tp_u, 0, tp_u);
2369 set_method_res_type(binop_tp_u, 1, tp_u);
2372 binop_tp_s = new_type_method(IDENT("binop_s_intrinsic"), 4, 2);
2373 set_method_param_type(binop_tp_s, 0, tp_u);
2374 set_method_param_type(binop_tp_s, 1, tp_s);
2375 set_method_param_type(binop_tp_s, 2, tp_u);
2376 set_method_param_type(binop_tp_s, 3, tp_s);
2377 set_method_res_type(binop_tp_s, 0, tp_u);
2378 set_method_res_type(binop_tp_s, 1, tp_s);
2380 if (! shiftop_tp_u) {
2381 shiftop_tp_u = new_type_method(IDENT("shiftop_u_intrinsic"), 3, 2);
2382 set_method_param_type(shiftop_tp_u, 0, tp_u);
2383 set_method_param_type(shiftop_tp_u, 1, tp_u);
2384 set_method_param_type(shiftop_tp_u, 2, tp_u);
2385 set_method_res_type(shiftop_tp_u, 0, tp_u);
2386 set_method_res_type(shiftop_tp_u, 1, tp_u);
2388 if (! shiftop_tp_s) {
2389 shiftop_tp_s = new_type_method(IDENT("shiftop_s_intrinsic"), 3, 2);
2390 set_method_param_type(shiftop_tp_s, 0, tp_u);
2391 set_method_param_type(shiftop_tp_s, 1, tp_s);
2392 /* beware: shift count is always mode_Iu */
2393 set_method_param_type(shiftop_tp_s, 2, tp_u);
2394 set_method_res_type(shiftop_tp_s, 0, tp_u);
2395 set_method_res_type(shiftop_tp_s, 1, tp_s);
2398 unop_tp_u = new_type_method(IDENT("unop_u_intrinsic"), 2, 2);
2399 set_method_param_type(unop_tp_u, 0, tp_u);
2400 set_method_param_type(unop_tp_u, 1, tp_u);
2401 set_method_res_type(unop_tp_u, 0, tp_u);
2402 set_method_res_type(unop_tp_u, 1, tp_u);
2405 unop_tp_s = new_type_method(IDENT("unop_s_intrinsic"), 2, 2);
2406 set_method_param_type(unop_tp_s, 0, tp_u);
2407 set_method_param_type(unop_tp_s, 1, tp_s);
2408 set_method_res_type(unop_tp_s, 0, tp_u);
2409 set_method_res_type(unop_tp_s, 1, tp_s);
2412 lenv.tv_mode_bytes = new_tarval_from_long(get_mode_size_bytes(param->low_unsigned), mode_Iu);
2413 lenv.tv_mode_bits = new_tarval_from_long(get_mode_size_bits(param->low_unsigned), mode_Iu);
2414 lenv.waitq = new_pdeq();
2415 lenv.params = param;
2417 /* first clear the generic function pointer for all ops */
2418 clear_irp_opcodes_generic_func();
2420 #define LOWER2(op, fkt) enter_lower_func(op_##op, fkt)
2421 #define LOWER(op) LOWER2(op, lower_##op)
2422 #define LOWER_BIN(op) LOWER2(op, lower_Binop)
2423 #define LOWER_UN(op) LOWER2(op, lower_Unop)
2425 /* the table of all operations that must be lowered follows */
2461 /* transform all graphs */
2462 rem = current_ir_graph;
2463 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2464 ir_graph *irg = get_irp_irg(i);
2467 obstack_init(&lenv.obst);
2469 n_idx = get_irg_last_idx(irg);
2470 lenv.n_entries = n_idx;
2471 lenv.entries = xmalloc(n_idx * sizeof(lenv.entries[0]));
2472 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2474 /* first step: link all nodes and allocate data */
2476 lenv.proj_2_block = pmap_create();
2477 irg_walk_graph(irg, firm_clear_link, prepare_links, &lenv);
2479 if (lenv.flags & MUST_BE_LOWERED) {
2480 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2482 /* must do some work */
2483 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2485 /* last step: all waiting nodes */
2486 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2487 current_ir_graph = irg;
2488 while (! pdeq_empty(lenv.waitq)) {
2489 ir_node *node = pdeq_getl(lenv.waitq);
2491 lower_ops(node, &lenv);
2494 /* outs are invalid, we changed the graph */
2495 set_irg_outs_inconsistent(irg);
2497 if (lenv.flags & CF_CHANGED) {
2498 /* control flow changed, dominance info is invalid */
2499 set_irg_doms_inconsistent(irg);
2500 set_irg_extblk_inconsistent(irg);
2501 set_irg_loopinfo_inconsistent(irg);
2504 pmap_destroy(lenv.proj_2_block);
2506 obstack_free(&lenv.obst, NULL);
2508 del_pdeq(lenv.waitq);
2509 current_ir_graph = rem;
2510 } /* lower_dw_ops */
2512 /* Default implementation. */
2513 ir_entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2514 const ir_mode *imode, const ir_mode *omode,
2522 if (imode == omode) {
2523 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2525 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2526 get_mode_name(imode), get_mode_name(omode));
2528 id = new_id_from_str(buf);
2530 ent = new_entity(get_glob_type(), id, method);
2531 set_entity_ld_ident(ent, get_entity_ident(ent));
2532 set_entity_visibility(ent, visibility_external_allocated);
2534 } /* def_create_intrinsic_fkt */