2 * Copyright (C) 1995-2011 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, i.e. 64bit -> 32bit, 32bit -> 16bit etc.
24 * @author Michael Beck
37 #include "irnodeset.h"
38 #include "irgraph_t.h"
43 #include "dbginfo_t.h"
44 #include "iropt_dbg.h"
50 #include "iroptimize.h"
61 /** A map from (op, imode, omode) to Intrinsic functions entities. */
62 static set *intrinsic_fkt;
64 /** A map from (imode, omode) to conv function types. */
65 static set *conv_types;
67 /** A map from a method type to its lowered type. */
68 static pmap *lowered_type;
70 /** A map from a builtin type to its lower and higher type. */
71 static pmap *lowered_builtin_type_high;
72 static pmap *lowered_builtin_type_low;
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, *tp_s, *tp_u;
77 static ir_nodeset_t created_mux_nodes;
79 /** the debug handle */
80 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
83 * An entry in the (op, imode, omode) -> entity map.
85 typedef struct op_mode_entry {
86 const ir_op *op; /**< the op */
87 const ir_mode *imode; /**< the input mode */
88 const ir_mode *omode; /**< the output mode */
89 ir_entity *ent; /**< the associated entity of this (op, imode, omode) triple */
93 * An entry in the (imode, omode) -> tp map.
95 typedef struct conv_tp_entry {
96 const ir_mode *imode; /**< the input mode */
97 const ir_mode *omode; /**< the output mode */
98 ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
102 MUST_BE_LOWERED = 1, /**< graph must be lowered */
103 CF_CHANGED = 2, /**< control flow was changed */
107 * The lower environment.
109 typedef struct lower_dw_env_t {
110 lower64_entry_t **entries; /**< entries per node */
112 struct obstack obst; /**< an obstack holding the temporary data */
113 ir_tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
114 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
115 ir_node **lowered_phis; /**< list of lowered phis */
116 ir_mode *high_signed; /**< doubleword signed type */
117 ir_mode *high_unsigned; /**< doubleword unsigned type */
118 ir_mode *low_signed; /**< word signed type */
119 ir_mode *low_unsigned; /**< word unsigned type */
120 ident *first_id; /**< .l for little and .h for big endian */
121 ident *next_id; /**< .h for little and .l for big endian */
122 const lwrdw_param_t *params; /**< transformation parameter */
123 unsigned flags; /**< some flags */
124 unsigned n_entries; /**< number of entries */
127 static lower_dw_env_t *env;
129 static void lower_node(ir_node *node);
132 * Create a method type for a Conv emulation from imode to omode.
134 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode)
136 conv_tp_entry_t key, *entry;
143 entry = set_insert(conv_tp_entry_t, conv_types, &key, sizeof(key), hash_ptr(imode) ^ hash_ptr(omode));
145 int n_param = 1, n_res = 1;
147 if (imode == env->high_signed || imode == env->high_unsigned)
149 if (omode == env->high_signed || omode == env->high_unsigned)
152 /* create a new one */
153 mtd = new_type_method(n_param, n_res);
155 /* set param types and result types */
157 if (imode == env->high_signed) {
158 if (env->params->little_endian) {
159 set_method_param_type(mtd, n_param++, tp_u);
160 set_method_param_type(mtd, n_param++, tp_s);
162 set_method_param_type(mtd, n_param++, tp_s);
163 set_method_param_type(mtd, n_param++, tp_u);
165 } else if (imode == env->high_unsigned) {
166 set_method_param_type(mtd, n_param++, tp_u);
167 set_method_param_type(mtd, n_param++, tp_u);
169 ir_type *tp = get_type_for_mode(imode);
170 set_method_param_type(mtd, n_param++, tp);
174 if (omode == env->high_signed) {
175 if (env->params->little_endian) {
176 set_method_res_type(mtd, n_res++, tp_u);
177 set_method_res_type(mtd, n_res++, tp_s);
179 set_method_res_type(mtd, n_res++, tp_s);
180 set_method_res_type(mtd, n_res++, tp_u);
182 } else if (omode == env->high_unsigned) {
183 set_method_res_type(mtd, n_res++, tp_u);
184 set_method_res_type(mtd, n_res++, tp_u);
186 ir_type *tp = get_type_for_mode(omode);
187 set_method_res_type(mtd, n_res++, tp);
197 * Add an additional control flow input to a block.
198 * Patch all Phi nodes. The new Phi inputs are copied from
199 * old input number nr.
201 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
203 int i, arity = get_irn_arity(block);
208 NEW_ARR_A(ir_node *, in, arity + 1);
209 for (i = 0; i < arity; ++i)
210 in[i] = get_irn_n(block, i);
213 set_irn_in(block, i + 1, in);
215 foreach_out_edge(block, edge) {
216 ir_node *phi = get_edge_src_irn(edge);
220 for (i = 0; i < arity; ++i)
221 in[i] = get_irn_n(phi, i);
223 set_irn_in(phi, i + 1, in);
228 * Add an additional control flow input to a block.
229 * Patch all Phi nodes. The new Phi inputs are copied from
230 * old input from cf tmpl.
232 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
234 int i, arity = get_irn_arity(block);
237 for (i = 0; i < arity; ++i) {
238 if (get_irn_n(block, i) == tmpl) {
244 add_block_cf_input_nr(block, nr, cf);
248 * Return the "operational" mode of a Firm node.
250 static ir_mode *get_irn_op_mode(ir_node *node)
252 switch (get_irn_opcode(node)) {
254 return get_Load_mode(node);
256 return get_irn_mode(get_Store_value(node));
258 return get_irn_mode(get_Div_left(node));
260 return get_irn_mode(get_Mod_left(node));
262 return get_irn_mode(get_Cmp_left(node));
264 return get_irn_mode(node);
269 * Walker, prepare the node links and determine which nodes need to be lowered
272 static void prepare_links(ir_node *node)
274 ir_mode *mode = get_irn_op_mode(node);
275 lower64_entry_t *link;
277 if (mode == env->high_signed || mode == env->high_unsigned) {
278 unsigned idx = get_irn_idx(node);
279 /* ok, found a node that will be lowered */
280 link = OALLOCZ(&env->obst, lower64_entry_t);
282 if (idx >= env->n_entries) {
283 /* enlarge: this happens only for Rotl nodes which is RARELY */
284 unsigned old = env->n_entries;
285 unsigned n_idx = idx + (idx >> 3);
287 ARR_RESIZE(lower64_entry_t *, env->entries, n_idx);
288 memset(&env->entries[old], 0, (n_idx - old) * sizeof(env->entries[0]));
289 env->n_entries = n_idx;
291 env->entries[idx] = link;
292 env->flags |= MUST_BE_LOWERED;
293 } else if (is_Conv(node)) {
294 /* Conv nodes have two modes */
295 ir_node *pred = get_Conv_op(node);
296 mode = get_irn_mode(pred);
298 if (mode == env->high_signed || mode == env->high_unsigned) {
299 /* must lower this node either but don't need a link */
300 env->flags |= MUST_BE_LOWERED;
303 } else if (is_Call(node)) {
304 /* Special case: If the result of the Call is never used, we won't
305 * find a Proj with a mode that potentially triggers MUST_BE_LOWERED
306 * to be set. Thus, if we see a call, we check its result types and
307 * decide whether MUST_BE_LOWERED has to be set.
309 ir_type *tp = get_Call_type(node);
312 n_res = get_method_n_ress(tp);
313 for (i = 0; i < n_res; ++i) {
314 ir_type *rtp = get_method_res_type(tp, i);
316 if (is_Primitive_type(rtp)) {
317 ir_mode *rmode = get_type_mode(rtp);
319 if (rmode == env->high_signed || rmode == env->high_unsigned) {
320 env->flags |= MUST_BE_LOWERED;
327 lower64_entry_t *get_node_entry(ir_node *node)
329 unsigned idx = get_irn_idx(node);
330 assert(idx < env->n_entries);
331 return env->entries[idx];
334 void ir_set_dw_lowered(ir_node *old, ir_node *new_low, ir_node *new_high)
336 lower64_entry_t *entry = get_node_entry(old);
337 entry->low_word = new_low;
338 entry->high_word = new_high;
341 ir_mode *ir_get_low_unsigned_mode(void)
343 return env->low_unsigned;
347 * Translate a Constant: create two.
349 static void lower_Const(ir_node *node, ir_mode *mode)
351 ir_graph *irg = get_irn_irg(node);
352 dbg_info *dbg = get_irn_dbg_info(node);
353 ir_mode *low_mode = env->low_unsigned;
354 ir_tarval *tv = get_Const_tarval(node);
355 ir_tarval *tv_l = tarval_convert_to(tv, low_mode);
356 ir_node *res_low = new_rd_Const(dbg, irg, tv_l);
357 ir_tarval *tv_shrs = tarval_shrs_unsigned(tv, get_mode_size_bits(low_mode));
358 ir_tarval *tv_h = tarval_convert_to(tv_shrs, mode);
359 ir_node *res_high = new_rd_Const(dbg, irg, tv_h);
361 ir_set_dw_lowered(node, res_low, res_high);
365 * Translate a Load: create two.
367 static void lower_Load(ir_node *node, ir_mode *mode)
369 ir_mode *low_mode = env->low_unsigned;
370 ir_graph *irg = get_irn_irg(node);
371 ir_node *adr = get_Load_ptr(node);
372 ir_node *mem = get_Load_mem(node);
377 ir_node *block = get_nodes_block(node);
378 ir_cons_flags volatility = get_Load_volatility(node) == volatility_is_volatile
379 ? cons_volatile : cons_none;
381 if (env->params->little_endian) {
383 high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
385 low = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
389 /* create two loads */
390 dbg = get_irn_dbg_info(node);
391 low = new_rd_Load(dbg, block, mem, low, low_mode, volatility);
392 proj_m = new_r_Proj(low, mode_M, pn_Load_M);
393 high = new_rd_Load(dbg, block, proj_m, high, mode, volatility);
395 foreach_out_edge_safe(node, edge) {
396 ir_node *proj = get_edge_src_irn(edge);
400 switch (get_Proj_proj(proj)) {
401 case pn_Load_M: /* Memory result. */
402 /* put it to the second one */
403 set_Proj_pred(proj, high);
405 case pn_Load_X_except: /* Execution result if exception occurred. */
406 /* put it to the first one */
407 set_Proj_pred(proj, low);
409 case pn_Load_res: { /* Result of load operation. */
410 ir_node *res_low = new_r_Proj(low, low_mode, pn_Load_res);
411 ir_node *res_high = new_r_Proj(high, mode, pn_Load_res);
412 ir_set_dw_lowered(proj, res_low, res_high);
416 assert(0 && "unexpected Proj number");
418 /* mark this proj: we have handled it already, otherwise we might fall
419 * into out new nodes. */
420 mark_irn_visited(proj);
425 * Translate a Store: create two.
427 static void lower_Store(ir_node *node, ir_mode *mode)
430 ir_node *block, *adr, *mem;
431 ir_node *low, *high, *proj_m;
433 ir_node *value = get_Store_value(node);
434 const lower64_entry_t *entry = get_node_entry(value);
435 ir_cons_flags volatility = get_Store_volatility(node) == volatility_is_volatile
436 ? cons_volatile : cons_none;
441 if (! entry->low_word) {
442 /* not ready yet, wait */
443 pdeq_putr(env->waitq, node);
447 irg = get_irn_irg(node);
448 adr = get_Store_ptr(node);
449 mem = get_Store_mem(node);
450 block = get_nodes_block(node);
452 if (env->params->little_endian) {
454 high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
456 low = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
460 /* create two Stores */
461 dbg = get_irn_dbg_info(node);
462 low = new_rd_Store(dbg, block, mem, low, entry->low_word, volatility);
463 proj_m = new_r_Proj(low, mode_M, pn_Store_M);
464 high = new_rd_Store(dbg, block, proj_m, high, entry->high_word, volatility);
466 foreach_out_edge_safe(node, edge) {
467 ir_node *proj = get_edge_src_irn(edge);
471 switch (get_Proj_proj(proj)) {
472 case pn_Store_M: /* Memory result. */
473 /* put it to the second one */
474 set_Proj_pred(proj, high);
476 case pn_Store_X_except: /* Execution result if exception occurred. */
477 /* put it to the first one */
478 set_Proj_pred(proj, low);
481 assert(0 && "unexpected Proj number");
483 /* mark this proj: we have handled it already, otherwise we might fall into
485 mark_irn_visited(proj);
490 * Return a node containing the address of the intrinsic emulation function.
492 * @param method the method type of the emulation function
493 * @param op the emulated ir_op
494 * @param imode the input mode of the emulated opcode
495 * @param omode the output mode of the emulated opcode
496 * @param env the lower environment
498 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
499 ir_mode *imode, ir_mode *omode)
503 op_mode_entry_t key, *entry;
510 entry = set_insert(op_mode_entry_t, intrinsic_fkt, &key, sizeof(key),
511 hash_ptr(op) ^ hash_ptr(imode) ^ (hash_ptr(omode) << 8));
513 /* create a new one */
514 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
516 assert(ent && "Intrinsic creator must return an entity");
522 return new_r_SymConst(env->irg, mode_P_code, sym, symconst_addr_ent);
528 * Create an intrinsic Call.
530 static void lower_Div(ir_node *node, ir_mode *mode)
532 ir_node *left = get_Div_left(node);
533 ir_node *right = get_Div_right(node);
534 ir_node *block = get_nodes_block(node);
535 dbg_info *dbgi = get_irn_dbg_info(node);
536 ir_type *mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
537 ir_mode *opmode = get_irn_op_mode(node);
538 ir_node *addr = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode);
543 if (env->params->little_endian) {
544 in[0] = get_lowered_low(left);
545 in[1] = get_lowered_high(left);
546 in[2] = get_lowered_low(right);
547 in[3] = get_lowered_high(right);
549 in[0] = get_lowered_high(left);
550 in[1] = get_lowered_low(left);
551 in[2] = get_lowered_high(right);
552 in[3] = get_lowered_low(right);
554 call = new_rd_Call(dbgi, block, get_Div_mem(node), addr, 4, in, mtp);
555 resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
556 set_irn_pinned(call, get_irn_pinned(node));
558 foreach_out_edge_safe(node, edge) {
559 ir_node *proj = get_edge_src_irn(edge);
563 switch (get_Proj_proj(proj)) {
564 case pn_Div_M: /* Memory result. */
565 /* reroute to the call */
566 set_Proj_pred(proj, call);
567 set_Proj_proj(proj, pn_Call_M);
569 case pn_Div_X_regular:
570 set_Proj_pred(proj, call);
571 set_Proj_proj(proj, pn_Call_X_regular);
573 case pn_Div_X_except:
574 set_Proj_pred(proj, call);
575 set_Proj_proj(proj, pn_Call_X_except);
578 if (env->params->little_endian) {
579 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
580 ir_node *res_high = new_r_Proj(resproj, mode, 1);
581 ir_set_dw_lowered(proj, res_low, res_high);
583 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
584 ir_node *res_high = new_r_Proj(resproj, mode, 0);
585 ir_set_dw_lowered(proj, res_low, res_high);
589 assert(0 && "unexpected Proj number");
591 /* mark this proj: we have handled it already, otherwise we might fall into
593 mark_irn_visited(proj);
600 * Create an intrinsic Call.
602 static void lower_Mod(ir_node *node, ir_mode *mode)
604 ir_node *left = get_Mod_left(node);
605 ir_node *right = get_Mod_right(node);
606 dbg_info *dbgi = get_irn_dbg_info(node);
607 ir_node *block = get_nodes_block(node);
608 ir_type *mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
609 ir_mode *opmode = get_irn_op_mode(node);
610 ir_node *addr = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode);
615 if (env->params->little_endian) {
616 in[0] = get_lowered_low(left);
617 in[1] = get_lowered_high(left);
618 in[2] = get_lowered_low(right);
619 in[3] = get_lowered_high(right);
621 in[0] = get_lowered_high(left);
622 in[1] = get_lowered_low(left);
623 in[2] = get_lowered_high(right);
624 in[3] = get_lowered_low(right);
626 call = new_rd_Call(dbgi, block, get_Mod_mem(node), addr, 4, in, mtp);
627 resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
628 set_irn_pinned(call, get_irn_pinned(node));
630 foreach_out_edge_safe(node, edge) {
631 ir_node *proj = get_edge_src_irn(edge);
635 switch (get_Proj_proj(proj)) {
636 case pn_Mod_M: /* Memory result. */
637 /* reroute to the call */
638 set_Proj_pred(proj, call);
639 set_Proj_proj(proj, pn_Call_M);
641 case pn_Div_X_regular:
642 set_Proj_pred(proj, call);
643 set_Proj_proj(proj, pn_Call_X_regular);
645 case pn_Mod_X_except:
646 set_Proj_pred(proj, call);
647 set_Proj_proj(proj, pn_Call_X_except);
650 if (env->params->little_endian) {
651 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
652 ir_node *res_high = new_r_Proj(resproj, mode, 1);
653 ir_set_dw_lowered(proj, res_low, res_high);
655 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
656 ir_node *res_high = new_r_Proj(resproj, mode, 0);
657 ir_set_dw_lowered(proj, res_low, res_high);
661 assert(0 && "unexpected Proj number");
663 /* mark this proj: we have handled it already, otherwise we might fall
664 * into out new nodes. */
665 mark_irn_visited(proj);
672 * Create an intrinsic Call.
674 static void lower_binop(ir_node *node, ir_mode *mode)
676 ir_node *left = get_binop_left(node);
677 ir_node *right = get_binop_right(node);
678 dbg_info *dbgi = get_irn_dbg_info(node);
679 ir_node *block = get_nodes_block(node);
680 ir_graph *irg = get_irn_irg(block);
681 ir_type *mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
682 ir_node *addr = get_intrinsic_address(mtp, get_irn_op(node), mode, mode);
687 if (env->params->little_endian) {
688 in[0] = get_lowered_low(left);
689 in[1] = get_lowered_high(left);
690 in[2] = get_lowered_low(right);
691 in[3] = get_lowered_high(right);
693 in[0] = get_lowered_high(left);
694 in[1] = get_lowered_low(left);
695 in[2] = get_lowered_high(right);
696 in[3] = get_lowered_low(right);
698 call = new_rd_Call(dbgi, block, get_irg_no_mem(irg), addr, 4, in, mtp);
699 resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
700 set_irn_pinned(call, get_irn_pinned(node));
702 if (env->params->little_endian) {
703 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
704 ir_node *res_high = new_r_Proj(resproj, mode, 1);
705 ir_set_dw_lowered(node, res_low, res_high);
707 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
708 ir_node *res_high = new_r_Proj(resproj, mode, 0);
709 ir_set_dw_lowered(node, res_low, res_high);
713 static ir_node *create_conv(ir_node *block, ir_node *node, ir_mode *dest_mode)
715 if (get_irn_mode(node) == dest_mode)
717 return new_r_Conv(block, node, dest_mode);
721 * Moves node and all predecessors of node from from_bl to to_bl.
722 * Does not move predecessors of Phi nodes (or block nodes).
724 static void move(ir_node *node, ir_node *from_bl, ir_node *to_bl)
729 set_nodes_block(node, to_bl);
732 if (get_irn_mode(node) == mode_T) {
733 foreach_out_edge(node, edge) {
734 ir_node *proj = get_edge_src_irn(edge);
737 move(proj, from_bl, to_bl);
741 /* We must not move predecessors of Phi nodes, even if they are in
742 * from_bl. (because these are values from an earlier loop iteration
743 * which are not predecessors of node here)
749 arity = get_irn_arity(node);
750 for (i = 0; i < arity; i++) {
751 ir_node *pred = get_irn_n(node, i);
752 ir_mode *pred_mode = get_irn_mode(pred);
753 if (get_nodes_block(pred) == from_bl)
754 move(pred, from_bl, to_bl);
755 if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
756 ir_node *pred_low = get_lowered_low(pred);
757 ir_node *pred_high = get_lowered_high(pred);
758 if (get_nodes_block(pred_low) == from_bl)
759 move(pred_low, from_bl, to_bl);
760 if (pred_high != NULL && get_nodes_block(pred_high) == from_bl)
761 move(pred_high, from_bl, to_bl);
767 * We need a custom version of part_block_edges because during transformation
768 * not all data-dependencies are explicit yet if a lowered nodes users are not
770 * We can fix this by modifying move to look for such implicit dependencies.
771 * Additionally we have to keep the proj_2_block map updated
773 static ir_node *part_block_dw(ir_node *node)
775 ir_graph *irg = get_irn_irg(node);
776 ir_node *old_block = get_nodes_block(node);
777 int n_cfgpreds = get_Block_n_cfgpreds(old_block);
778 ir_node **cfgpreds = get_Block_cfgpred_arr(old_block);
779 ir_node *new_block = new_r_Block(irg, n_cfgpreds, cfgpreds);
781 /* old_block has no predecessors anymore for now */
782 set_irn_in(old_block, 0, NULL);
784 /* move node and its predecessors to new_block */
785 move(node, old_block, new_block);
787 /* move Phi nodes to new_block */
788 foreach_out_edge_safe(old_block, edge) {
789 ir_node *phi = get_edge_src_irn(edge);
792 set_nodes_block(phi, new_block);
797 typedef ir_node* (*new_rd_shr_func)(dbg_info *dbgi, ir_node *block,
798 ir_node *left, ir_node *right,
801 static void lower_shr_helper(ir_node *node, ir_mode *mode,
802 new_rd_shr_func new_rd_shrs)
804 ir_node *right = get_binop_right(node);
805 ir_node *left = get_binop_left(node);
806 ir_mode *shr_mode = get_irn_mode(node);
807 unsigned modulo_shift = get_mode_modulo_shift(shr_mode);
808 ir_mode *low_unsigned = env->low_unsigned;
809 unsigned modulo_shift2 = get_mode_modulo_shift(mode);
810 ir_graph *irg = get_irn_irg(node);
811 ir_node *left_low = get_lowered_low(left);
812 ir_node *left_high = get_lowered_high(left);
813 dbg_info *dbgi = get_irn_dbg_info(node);
814 ir_node *lower_block;
824 ir_node *lower_in[2];
825 ir_node *phi_low_in[2];
826 ir_node *phi_high_in[2];
828 /* this version is optimized for modulo shift architectures
829 * (and can't handle anything else) */
830 if (modulo_shift != get_mode_size_bits(shr_mode)
831 || modulo_shift2<<1 != modulo_shift) {
832 panic("Shr lowering only implemented for modulo shift shr operations");
834 if (!is_po2(modulo_shift) || !is_po2(modulo_shift2)) {
835 panic("Shr lowering only implemented for power-of-2 modes");
837 /* without 2-complement the -x instead of (bit_width-x) trick won't work */
838 if (get_mode_arithmetic(shr_mode) != irma_twos_complement) {
839 panic("Shr lowering only implemented for two-complement modes");
842 block = get_nodes_block(node);
844 /* if the right operand is a 64bit value, we're only interested in the
846 if (get_irn_mode(right) == env->high_unsigned) {
847 right = get_lowered_low(right);
849 /* shift should never have signed mode on the right */
850 assert(get_irn_mode(right) != env->high_signed);
851 right = create_conv(block, right, low_unsigned);
854 lower_block = part_block_dw(node);
855 env->flags |= CF_CHANGED;
856 block = get_nodes_block(node);
858 /* add a Cmp to test if highest bit is set <=> whether we shift more
859 * than half the word width */
860 cnst = new_r_Const_long(irg, low_unsigned, modulo_shift2);
861 andn = new_r_And(block, right, cnst, low_unsigned);
862 cnst = new_r_Const(irg, get_mode_null(low_unsigned));
863 cmp = new_rd_Cmp(dbgi, block, andn, cnst, ir_relation_equal);
864 cond = new_rd_Cond(dbgi, block, cmp);
865 proj_true = new_r_Proj(cond, mode_X, pn_Cond_true);
866 proj_false = new_r_Proj(cond, mode_X, pn_Cond_false);
868 /* the true block => shift_width < 1word */
870 /* In theory the low value (for 64bit shifts) is:
871 * Or(High << (32-x)), Low >> x)
872 * In practice High << 32-x will fail when x is zero (since we have
873 * modulo shift and 32 will be 0). So instead we use:
874 * Or(High<<1<<~x, Low >> x)
876 ir_node *in[1] = { proj_true };
877 ir_node *block_true = new_r_Block(irg, ARRAY_SIZE(in), in);
878 ir_node *res_high = new_rd_shrs(dbgi, block_true, left_high,
880 ir_node *shift_low = new_rd_Shr(dbgi, block_true, left_low, right,
882 ir_node *not_shiftval = new_rd_Not(dbgi, block_true, right,
884 ir_node *conv = create_conv(block_true, left_high,
886 ir_node *one = new_r_Const(irg, get_mode_one(low_unsigned));
887 ir_node *carry0 = new_rd_Shl(dbgi, block_true, conv, one,
889 ir_node *carry1 = new_rd_Shl(dbgi, block_true, carry0,
890 not_shiftval, low_unsigned);
891 ir_node *res_low = new_rd_Or(dbgi, block_true, shift_low, carry1,
893 lower_in[0] = new_r_Jmp(block_true);
894 phi_low_in[0] = res_low;
895 phi_high_in[0] = res_high;
898 /* false block => shift_width > 1word */
900 ir_node *in[1] = { proj_false };
901 ir_node *block_false = new_r_Block(irg, ARRAY_SIZE(in), in);
902 ir_node *conv = create_conv(block_false, left_high, low_unsigned);
903 ir_node *res_low = new_rd_shrs(dbgi, block_false, conv, right,
905 int cnsti = modulo_shift2-1;
906 ir_node *cnst2 = new_r_Const_long(irg, low_unsigned, cnsti);
908 if (new_rd_shrs == new_rd_Shrs) {
909 res_high = new_rd_shrs(dbgi, block_false, left_high, cnst2, mode);
911 res_high = new_r_Const(irg, get_mode_null(mode));
913 lower_in[1] = new_r_Jmp(block_false);
914 phi_low_in[1] = res_low;
915 phi_high_in[1] = res_high;
918 /* patch lower block */
919 set_irn_in(lower_block, ARRAY_SIZE(lower_in), lower_in);
920 phi_low = new_r_Phi(lower_block, ARRAY_SIZE(phi_low_in), phi_low_in,
922 phi_high = new_r_Phi(lower_block, ARRAY_SIZE(phi_high_in), phi_high_in,
924 ir_set_dw_lowered(node, phi_low, phi_high);
927 static void lower_Shr(ir_node *node, ir_mode *mode)
929 lower_shr_helper(node, mode, new_rd_Shr);
932 static void lower_Shrs(ir_node *node, ir_mode *mode)
934 lower_shr_helper(node, mode, new_rd_Shrs);
937 static void lower_Shl(ir_node *node, ir_mode *mode)
939 ir_node *right = get_binop_right(node);
940 ir_node *left = get_binop_left(node);
941 ir_mode *shr_mode = get_irn_mode(node);
942 unsigned modulo_shift = get_mode_modulo_shift(shr_mode);
943 ir_mode *low_unsigned = env->low_unsigned;
944 unsigned modulo_shift2 = get_mode_modulo_shift(mode);
945 ir_graph *irg = get_irn_irg(node);
946 ir_node *left_low = get_lowered_low(left);
947 ir_node *left_high = get_lowered_high(left);
948 dbg_info *dbgi = get_irn_dbg_info(node);
949 ir_node *lower_block = get_nodes_block(node);
959 ir_node *lower_in[2];
960 ir_node *phi_low_in[2];
961 ir_node *phi_high_in[2];
963 /* this version is optimized for modulo shift architectures
964 * (and can't handle anything else) */
965 if (modulo_shift != get_mode_size_bits(shr_mode)
966 || modulo_shift2<<1 != modulo_shift) {
967 panic("Shl lowering only implemented for modulo shift shl operations");
969 if (!is_po2(modulo_shift) || !is_po2(modulo_shift2)) {
970 panic("Shl lowering only implemented for power-of-2 modes");
972 /* without 2-complement the -x instead of (bit_width-x) trick won't work */
973 if (get_mode_arithmetic(shr_mode) != irma_twos_complement) {
974 panic("Shl lowering only implemented for two-complement modes");
977 /* if the right operand is a 64bit value, we're only interested in the
979 if (get_irn_mode(right) == env->high_unsigned) {
980 right = get_lowered_low(right);
982 /* shift should never have signed mode on the right */
983 assert(get_irn_mode(right) != env->high_signed);
984 right = create_conv(lower_block, right, low_unsigned);
988 env->flags |= CF_CHANGED;
989 block = get_nodes_block(node);
991 /* add a Cmp to test if highest bit is set <=> whether we shift more
992 * than half the word width */
993 cnst = new_r_Const_long(irg, low_unsigned, modulo_shift2);
994 andn = new_r_And(block, right, cnst, low_unsigned);
995 cnst = new_r_Const(irg, get_mode_null(low_unsigned));
996 cmp = new_rd_Cmp(dbgi, block, andn, cnst, ir_relation_equal);
997 cond = new_rd_Cond(dbgi, block, cmp);
998 proj_true = new_r_Proj(cond, mode_X, pn_Cond_true);
999 proj_false = new_r_Proj(cond, mode_X, pn_Cond_false);
1001 /* the true block => shift_width < 1word */
1003 ir_node *in[1] = { proj_true };
1004 ir_node *block_true = new_r_Block(irg, ARRAY_SIZE(in), in);
1006 ir_node *res_low = new_rd_Shl(dbgi, block_true, left_low,
1007 right, low_unsigned);
1008 ir_node *shift_high = new_rd_Shl(dbgi, block_true, left_high, right,
1010 ir_node *not_shiftval = new_rd_Not(dbgi, block_true, right,
1012 ir_node *conv = create_conv(block_true, left_low, mode);
1013 ir_node *one = new_r_Const(irg, get_mode_one(low_unsigned));
1014 ir_node *carry0 = new_rd_Shr(dbgi, block_true, conv, one, mode);
1015 ir_node *carry1 = new_rd_Shr(dbgi, block_true, carry0,
1016 not_shiftval, mode);
1017 ir_node *res_high = new_rd_Or(dbgi, block_true, shift_high, carry1,
1019 lower_in[0] = new_r_Jmp(block_true);
1020 phi_low_in[0] = res_low;
1021 phi_high_in[0] = res_high;
1024 /* false block => shift_width > 1word */
1026 ir_node *in[1] = { proj_false };
1027 ir_node *block_false = new_r_Block(irg, ARRAY_SIZE(in), in);
1028 ir_node *res_low = new_r_Const(irg, get_mode_null(low_unsigned));
1029 ir_node *conv = create_conv(block_false, left_low, mode);
1030 ir_node *res_high = new_rd_Shl(dbgi, block_false, conv, right, mode);
1031 lower_in[1] = new_r_Jmp(block_false);
1032 phi_low_in[1] = res_low;
1033 phi_high_in[1] = res_high;
1036 /* patch lower block */
1037 set_irn_in(lower_block, ARRAY_SIZE(lower_in), lower_in);
1038 phi_low = new_r_Phi(lower_block, ARRAY_SIZE(phi_low_in), phi_low_in,
1040 phi_high = new_r_Phi(lower_block, ARRAY_SIZE(phi_high_in), phi_high_in,
1042 ir_set_dw_lowered(node, phi_low, phi_high);
1046 * Rebuild Rotl nodes into Or(Shl, Shr) and prepare all nodes.
1048 static void prepare_links_and_handle_rotl(ir_node *node, void *data)
1051 if (is_Rotl(node)) {
1052 ir_mode *mode = get_irn_op_mode(node);
1054 ir_node *left, *shl, *shr, *ornode, *block, *sub, *c;
1055 ir_mode *omode, *rmode;
1058 optimization_state_t state;
1060 if (mode != env->high_signed && mode != env->high_unsigned) {
1061 prepare_links(node);
1065 /* replace the Rotl(x,y) by an Or(Shl(x,y), Shr(x,64-y)) */
1066 right = get_Rotl_right(node);
1067 irg = get_irn_irg(node);
1068 dbg = get_irn_dbg_info(node);
1069 omode = get_irn_mode(node);
1070 left = get_Rotl_left(node);
1071 block = get_nodes_block(node);
1072 shl = new_rd_Shl(dbg, block, left, right, omode);
1073 rmode = get_irn_mode(right);
1074 c = new_r_Const_long(irg, rmode, get_mode_size_bits(omode));
1075 sub = new_rd_Sub(dbg, block, c, right, rmode);
1076 shr = new_rd_Shr(dbg, block, left, sub, omode);
1078 /* switch optimization off here, or we will get the Rotl back */
1079 save_optimization_state(&state);
1080 set_opt_algebraic_simplification(0);
1081 ornode = new_rd_Or(dbg, block, shl, shr, omode);
1082 restore_optimization_state(&state);
1084 exchange(node, ornode);
1086 /* do lowering on the new nodes */
1091 prepare_links(ornode);
1095 prepare_links(node);
1099 * Translate an Unop.
1101 * Create an intrinsic Call.
1103 static void lower_unop(ir_node *node, ir_mode *mode)
1105 ir_node *op = get_unop_op(node);
1106 dbg_info *dbgi = get_irn_dbg_info(node);
1107 ir_node *block = get_nodes_block(node);
1108 ir_graph *irg = get_irn_irg(block);
1109 ir_type *mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
1110 ir_op *irop = get_irn_op(node);
1111 ir_node *addr = get_intrinsic_address(mtp, irop, mode, mode);
1112 ir_node *nomem = get_irg_no_mem(irg);
1117 if (env->params->little_endian) {
1118 in[0] = get_lowered_low(op);
1119 in[1] = get_lowered_high(op);
1121 in[0] = get_lowered_high(op);
1122 in[1] = get_lowered_low(op);
1124 call = new_rd_Call(dbgi, block, nomem, addr, 2, in, mtp);
1125 resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
1126 set_irn_pinned(call, get_irn_pinned(node));
1128 if (env->params->little_endian) {
1129 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
1130 ir_node *res_high = new_r_Proj(resproj, mode, 1);
1131 ir_set_dw_lowered(node, res_low, res_high);
1133 ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
1134 ir_node *res_high = new_r_Proj(resproj, mode, 0);
1135 ir_set_dw_lowered(node, res_low, res_high);
1140 * Translate a logical binop.
1142 * Create two logical binops.
1144 static void lower_binop_logical(ir_node *node, ir_mode *mode,
1145 ir_node *(*constr_rd)(dbg_info *db, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) )
1147 ir_node *left = get_binop_left(node);
1148 ir_node *right = get_binop_right(node);
1149 const lower64_entry_t *left_entry = get_node_entry(left);
1150 const lower64_entry_t *right_entry = get_node_entry(right);
1151 dbg_info *dbgi = get_irn_dbg_info(node);
1152 ir_node *block = get_nodes_block(node);
1154 = constr_rd(dbgi, block, left_entry->low_word, right_entry->low_word,
1157 = constr_rd(dbgi, block, left_entry->high_word, right_entry->high_word,
1159 ir_set_dw_lowered(node, res_low, res_high);
1162 static void lower_And(ir_node *node, ir_mode *mode)
1164 lower_binop_logical(node, mode, new_rd_And);
1167 static void lower_Or(ir_node *node, ir_mode *mode)
1169 lower_binop_logical(node, mode, new_rd_Or);
1172 static void lower_Eor(ir_node *node, ir_mode *mode)
1174 lower_binop_logical(node, mode, new_rd_Eor);
1180 * Create two logical Nots.
1182 static void lower_Not(ir_node *node, ir_mode *mode)
1184 ir_node *op = get_Not_op(node);
1185 const lower64_entry_t *op_entry = get_node_entry(op);
1186 dbg_info *dbgi = get_irn_dbg_info(node);
1187 ir_node *block = get_nodes_block(node);
1189 = new_rd_Not(dbgi, block, op_entry->low_word, env->low_unsigned);
1191 = new_rd_Not(dbgi, block, op_entry->high_word, mode);
1192 ir_set_dw_lowered(node, res_low, res_high);
1195 static void lower_Proj(ir_node *node, ir_mode *op_mode)
1197 ir_mode *mode = get_irn_mode(node);
1200 if (mode != env->high_signed && mode != env->high_unsigned)
1203 pred = get_Proj_pred(node);
1204 if (is_Tuple(pred)) {
1205 long pn = get_Proj_proj(node);
1206 ir_node *op = get_irn_n(pred, pn);
1207 const lower64_entry_t *entry = get_node_entry(op);
1208 ir_set_dw_lowered(node, entry->low_word, entry->high_word);
1212 static bool is_equality_cmp(const ir_node *node)
1214 ir_relation relation = get_Cmp_relation(node);
1215 ir_node *left = get_Cmp_left(node);
1216 ir_node *right = get_Cmp_right(node);
1217 ir_mode *mode = get_irn_mode(left);
1219 /* this probably makes no sense if unordered is involved */
1220 assert(!mode_is_float(mode));
1222 if (relation == ir_relation_equal || relation == ir_relation_less_greater)
1225 if (!is_Const(right) || !is_Const_null(right))
1227 if (mode_is_signed(mode)) {
1228 return relation == ir_relation_less_greater;
1230 return relation == ir_relation_greater;
1234 static ir_node *get_cfop_destination(const ir_node *cfop)
1236 const ir_edge_t *first = get_irn_out_edge_first(cfop);
1237 /* we should only have 1 destination */
1238 assert(get_irn_n_edges(cfop) == 1);
1239 return get_edge_src_irn(first);
1242 static void lower_Switch(ir_node *node, ir_mode *high_mode)
1244 ir_node *selector = get_Switch_selector(node);
1245 ir_mode *mode = get_irn_mode(selector);
1247 if (mode == env->high_signed || mode == env->high_unsigned) {
1248 /* we can't really handle Switch with 64bit offsets */
1249 panic("Switch with 64bit jumptable not supported");
1251 lower_node(selector);
1257 static void lower_Cond(ir_node *node, ir_mode *high_mode)
1259 ir_node *left, *right, *block;
1260 ir_node *sel = get_Cond_selector(node);
1262 const lower64_entry_t *lentry, *rentry;
1263 ir_node *projT = NULL, *projF = NULL;
1264 ir_node *new_bl, *irn;
1265 ir_node *projHF, *projHT;
1267 ir_relation relation;
1278 left = get_Cmp_left(sel);
1279 cmp_mode = get_irn_mode(left);
1280 if (cmp_mode != env->high_signed && cmp_mode != env->high_unsigned) {
1285 right = get_Cmp_right(sel);
1288 lentry = get_node_entry(left);
1289 rentry = get_node_entry(right);
1291 /* all right, build the code */
1292 foreach_out_edge_safe(node, edge) {
1293 ir_node *proj = get_edge_src_irn(edge);
1297 proj_nr = get_Proj_proj(proj);
1299 if (proj_nr == pn_Cond_true) {
1300 assert(projT == NULL && "more than one Proj(true)");
1303 assert(proj_nr == pn_Cond_false);
1304 assert(projF == NULL && "more than one Proj(false)");
1307 mark_irn_visited(proj);
1309 assert(projT && projF);
1311 /* create a new high compare */
1312 block = get_nodes_block(node);
1313 irg = get_Block_irg(block);
1314 dbg = get_irn_dbg_info(sel);
1315 relation = get_Cmp_relation(sel);
1317 if (is_equality_cmp(sel)) {
1318 /* x ==/!= y ==> or(x_low^y_low,x_high^y_high) ==/!= 0 */
1319 ir_mode *mode = env->low_unsigned;
1320 ir_node *low_left = new_rd_Conv(dbg, block, lentry->low_word, mode);
1321 ir_node *high_left = new_rd_Conv(dbg, block, lentry->high_word, mode);
1322 ir_node *low_right = new_rd_Conv(dbg, block, rentry->low_word, mode);
1323 ir_node *high_right = new_rd_Conv(dbg, block, rentry->high_word, mode);
1324 ir_node *xor_low = new_rd_Eor(dbg, block, low_left, low_right, mode);
1325 ir_node *xor_high = new_rd_Eor(dbg, block, high_left, high_right, mode);
1326 ir_node *ornode = new_rd_Or(dbg, block, xor_low, xor_high, mode);
1327 ir_node *cmp = new_rd_Cmp(dbg, block, ornode, new_r_Const(irg, get_mode_null(mode)), relation);
1328 set_Cond_selector(node, cmp);
1332 if (relation == ir_relation_equal) {
1334 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1335 dst_blk = get_cfop_destination(projF);
1337 irn = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
1339 dbg = get_irn_dbg_info(node);
1340 irn = new_rd_Cond(dbg, block, irn);
1342 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1343 mark_irn_visited(projHF);
1344 exchange(projF, projHF);
1346 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1347 mark_irn_visited(projHT);
1349 new_bl = new_r_Block(irg, 1, &projHT);
1351 dbg = get_irn_dbg_info(sel);
1352 irn = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word,
1354 dbg = get_irn_dbg_info(node);
1355 irn = new_rd_Cond(dbg, new_bl, irn);
1357 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1358 mark_irn_visited(proj);
1359 add_block_cf_input(dst_blk, projHF, proj);
1361 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1362 mark_irn_visited(proj);
1363 exchange(projT, proj);
1364 } else if (relation == ir_relation_less_greater) {
1366 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1367 dst_blk = get_cfop_destination(projT);
1369 irn = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
1370 ir_relation_less_greater);
1371 dbg = get_irn_dbg_info(node);
1372 irn = new_rd_Cond(dbg, block, irn);
1374 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1375 mark_irn_visited(projHT);
1376 exchange(projT, projHT);
1378 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1379 mark_irn_visited(projHF);
1381 new_bl = new_r_Block(irg, 1, &projHF);
1383 dbg = get_irn_dbg_info(sel);
1384 irn = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word,
1385 ir_relation_less_greater);
1386 dbg = get_irn_dbg_info(node);
1387 irn = new_rd_Cond(dbg, new_bl, irn);
1389 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1390 mark_irn_visited(proj);
1391 add_block_cf_input(dst_blk, projHT, proj);
1393 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1394 mark_irn_visited(proj);
1395 exchange(projF, proj);
1398 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
1399 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1402 dstT = get_cfop_destination(projT);
1403 dstF = get_cfop_destination(projF);
1405 irn = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
1406 relation & ~ir_relation_equal);
1407 dbg = get_irn_dbg_info(node);
1408 irn = new_rd_Cond(dbg, block, irn);
1410 projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
1411 mark_irn_visited(projHT);
1413 projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
1414 mark_irn_visited(projHF);
1416 newbl_eq = new_r_Block(irg, 1, &projHF);
1418 irn = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
1420 irn = new_rd_Cond(dbg, newbl_eq, irn);
1422 projEqF = new_r_Proj(irn, mode_X, pn_Cond_false);
1423 mark_irn_visited(projEqF);
1425 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1426 mark_irn_visited(proj);
1428 newbl_l = new_r_Block(irg, 1, &proj);
1430 dbg = get_irn_dbg_info(sel);
1431 irn = new_rd_Cmp(dbg, newbl_l, lentry->low_word, rentry->low_word,
1433 dbg = get_irn_dbg_info(node);
1434 irn = new_rd_Cond(dbg, newbl_l, irn);
1436 proj = new_r_Proj(irn, mode_X, pn_Cond_true);
1437 mark_irn_visited(proj);
1438 add_block_cf_input(dstT, projT, proj);
1440 proj = new_r_Proj(irn, mode_X, pn_Cond_false);
1441 mark_irn_visited(proj);
1442 add_block_cf_input(dstF, projF, proj);
1444 exchange(projT, projHT);
1445 exchange(projF, projEqF);
1448 /* we have changed the control flow */
1449 env->flags |= CF_CHANGED;
1453 * Translate a Conv to higher_signed
1455 static void lower_Conv_to_Ll(ir_node *node)
1457 ir_mode *omode = get_irn_mode(node);
1458 ir_node *op = get_Conv_op(node);
1459 ir_mode *imode = get_irn_mode(op);
1460 ir_graph *irg = get_irn_irg(node);
1461 ir_node *block = get_nodes_block(node);
1462 dbg_info *dbg = get_irn_dbg_info(node);
1466 ir_mode *low_unsigned = env->low_unsigned;
1468 = mode_is_signed(omode) ? env->low_signed : low_unsigned;
1470 if (mode_is_int(imode) || mode_is_reference(imode)) {
1471 if (imode == env->high_signed || imode == env->high_unsigned) {
1472 /* a Conv from Lu to Ls or Ls to Lu */
1473 const lower64_entry_t *op_entry = get_node_entry(op);
1474 res_low = op_entry->low_word;
1475 res_high = new_rd_Conv(dbg, block, op_entry->high_word, low_signed);
1477 /* simple case: create a high word */
1478 if (imode != low_unsigned)
1479 op = new_rd_Conv(dbg, block, op, low_unsigned);
1483 if (mode_is_signed(imode)) {
1484 int c = get_mode_size_bits(low_signed) - 1;
1485 ir_node *cnst = new_r_Const_long(irg, low_unsigned, c);
1486 if (get_irn_mode(op) != low_signed)
1487 op = new_rd_Conv(dbg, block, op, low_signed);
1488 res_high = new_rd_Shrs(dbg, block, op, cnst, low_signed);
1490 res_high = new_r_Const(irg, get_mode_null(low_signed));
1493 } else if (imode == mode_b) {
1494 res_low = new_rd_Conv(dbg, block, op, low_unsigned);
1495 res_high = new_r_Const(irg, get_mode_null(low_signed));
1497 ir_node *irn, *call;
1498 ir_type *mtp = get_conv_type(imode, omode);
1500 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode);
1501 call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1502 set_irn_pinned(call, get_irn_pinned(node));
1503 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
1505 if (env->params->little_endian) {
1506 res_low = new_r_Proj(irn, low_unsigned, 0);
1507 res_high = new_r_Proj(irn, low_signed, 1);
1509 res_low = new_r_Proj(irn, low_unsigned, 1);
1510 res_high = new_r_Proj(irn, low_signed, 0);
1513 ir_set_dw_lowered(node, res_low, res_high);
1517 * Translate a Conv from higher_unsigned
1519 static void lower_Conv_from_Ll(ir_node *node)
1521 ir_node *op = get_Conv_op(node);
1522 ir_mode *omode = get_irn_mode(node);
1523 ir_node *block = get_nodes_block(node);
1524 dbg_info *dbg = get_irn_dbg_info(node);
1525 ir_graph *irg = get_irn_irg(node);
1526 const lower64_entry_t *entry = get_node_entry(op);
1528 if (mode_is_int(omode) || mode_is_reference(omode)) {
1529 op = entry->low_word;
1531 /* simple case: create a high word */
1532 if (omode != env->low_unsigned)
1533 op = new_rd_Conv(dbg, block, op, omode);
1535 set_Conv_op(node, op);
1536 } else if (omode == mode_b) {
1537 /* llu ? true : false <=> (low|high) ? true : false */
1538 ir_mode *mode = env->low_unsigned;
1539 ir_node *ornode = new_rd_Or(dbg, block, entry->low_word,
1540 entry->high_word, mode);
1541 set_Conv_op(node, ornode);
1543 ir_node *irn, *call, *in[2];
1544 ir_mode *imode = get_irn_mode(op);
1545 ir_type *mtp = get_conv_type(imode, omode);
1548 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode);
1549 if (env->params->little_endian) {
1550 in[0] = entry->low_word;
1551 in[1] = entry->high_word;
1553 in[0] = entry->high_word;
1554 in[1] = entry->low_word;
1557 call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1558 set_irn_pinned(call, get_irn_pinned(node));
1559 irn = new_r_Proj(call, mode_T, pn_Call_T_result);
1560 res = new_r_Proj(irn, omode, 0);
1562 exchange(node, res);
1569 static void lower_Cmp(ir_node *cmp, ir_mode *m)
1571 ir_node *l = get_Cmp_left(cmp);
1572 ir_mode *cmp_mode = get_irn_mode(l);
1573 ir_node *r, *low, *high, *t, *res;
1574 ir_relation relation;
1577 const lower64_entry_t *lentry;
1578 const lower64_entry_t *rentry;
1581 if (cmp_mode != env->high_signed && cmp_mode != env->high_unsigned)
1584 r = get_Cmp_right(cmp);
1585 lentry = get_node_entry(l);
1586 rentry = get_node_entry(r);
1587 relation = get_Cmp_relation(cmp);
1588 block = get_nodes_block(cmp);
1589 dbg = get_irn_dbg_info(cmp);
1591 /* easy case for x ==/!= 0 (see lower_Cond for details) */
1592 if (is_equality_cmp(cmp)) {
1593 ir_graph *irg = get_irn_irg(cmp);
1594 ir_mode *mode = env->low_unsigned;
1595 ir_node *low_left = new_rd_Conv(dbg, block, lentry->low_word, mode);
1596 ir_node *high_left = new_rd_Conv(dbg, block, lentry->high_word, mode);
1597 ir_node *low_right = new_rd_Conv(dbg, block, rentry->low_word, mode);
1598 ir_node *high_right = new_rd_Conv(dbg, block, rentry->high_word, mode);
1599 ir_node *xor_low = new_rd_Eor(dbg, block, low_left, low_right, mode);
1600 ir_node *xor_high = new_rd_Eor(dbg, block, high_left, high_right, mode);
1601 ir_node *ornode = new_rd_Or(dbg, block, xor_low, xor_high, mode);
1602 ir_node *new_cmp = new_rd_Cmp(dbg, block, ornode, new_r_Const(irg, get_mode_null(mode)), relation);
1603 exchange(cmp, new_cmp);
1607 if (relation == ir_relation_equal) {
1608 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1609 low = new_rd_Cmp(dbg, block, lentry->low_word, rentry->low_word,
1611 high = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
1613 res = new_rd_And(dbg, block, low, high, mode_b);
1614 } else if (relation == ir_relation_less_greater) {
1615 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1616 low = new_rd_Cmp(dbg, block, lentry->low_word, rentry->low_word,
1618 high = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
1620 res = new_rd_Or(dbg, block, low, high, mode_b);
1622 /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
1623 ir_node *high1 = new_rd_Cmp(dbg, block, lentry->high_word,
1624 rentry->high_word, relation & ~ir_relation_equal);
1625 low = new_rd_Cmp(dbg, block, lentry->low_word, rentry->low_word,
1627 high = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
1629 t = new_rd_And(dbg, block, low, high, mode_b);
1630 res = new_rd_Or(dbg, block, high1, t, mode_b);
1638 static void lower_Conv(ir_node *node, ir_mode *mode)
1640 mode = get_irn_mode(node);
1642 if (mode == env->high_signed || mode == env->high_unsigned) {
1643 lower_Conv_to_Ll(node);
1645 ir_mode *op_mode = get_irn_mode(get_Conv_op(node));
1647 if (op_mode == env->high_signed || op_mode == env->high_unsigned) {
1648 lower_Conv_from_Ll(node);
1653 static void fix_parameter_entities(ir_graph *irg, ir_type *orig_mtp)
1655 size_t orig_n_params = get_method_n_params(orig_mtp);
1656 ir_entity **parameter_entities;
1658 parameter_entities = ALLOCANZ(ir_entity*, orig_n_params);
1660 ir_type *frame_type = get_irg_frame_type(irg);
1661 size_t n = get_compound_n_members(frame_type);
1665 /* collect parameter entities */
1666 for (i = 0; i < n; ++i) {
1667 ir_entity *entity = get_compound_member(frame_type, i);
1669 if (!is_parameter_entity(entity))
1671 p = get_entity_parameter_number(entity);
1672 if (p == IR_VA_START_PARAMETER_NUMBER)
1674 assert(p < orig_n_params);
1675 assert(parameter_entities[p] == NULL);
1676 parameter_entities[p] = entity;
1679 /* adjust indices */
1681 for (i = 0; i < orig_n_params; ++i, ++n_param) {
1682 ir_entity *entity = parameter_entities[i];
1686 set_entity_parameter_number(entity, n_param);
1688 tp = get_method_param_type(orig_mtp, i);
1689 if (is_Primitive_type(tp)) {
1690 ir_mode *mode = get_type_mode(tp);
1691 if (mode == env->high_signed || mode == env->high_unsigned) {
1693 /* note that we do not change the type of the parameter
1694 * entities, as calling convention fixup later still needs to
1695 * know which is/was a lowered doubleword.
1696 * So we just mark/remember it for later */
1697 if (entity != NULL) {
1698 assert(entity->attr.parameter.doubleword_low_mode == NULL);
1699 entity->attr.parameter.doubleword_low_mode
1700 = env->low_unsigned;
1708 * Lower the method type.
1710 * @param env the lower environment
1711 * @param mtp the method type to lower
1713 * @return the lowered type
1715 static ir_type *lower_mtp(ir_type *mtp)
1719 size_t orig_n_params;
1723 bool must_be_lowered;
1725 res = pmap_get(ir_type, lowered_type, mtp);
1728 if (type_visited(mtp))
1730 mark_type_visited(mtp);
1732 orig_n_params = get_method_n_params(mtp);
1733 orig_n_res = get_method_n_ress(mtp);
1734 n_param = orig_n_params;
1736 must_be_lowered = false;
1738 /* count new number of params */
1739 for (i = orig_n_params; i > 0;) {
1740 ir_type *tp = get_method_param_type(mtp, --i);
1742 if (is_Primitive_type(tp)) {
1743 ir_mode *mode = get_type_mode(tp);
1745 if (mode == env->high_signed || mode == env->high_unsigned) {
1747 must_be_lowered = true;
1752 /* count new number of results */
1753 for (i = orig_n_res; i > 0;) {
1754 ir_type *tp = get_method_res_type(mtp, --i);
1756 if (is_Primitive_type(tp)) {
1757 ir_mode *mode = get_type_mode(tp);
1759 if (mode == env->high_signed || mode == env->high_unsigned) {
1761 must_be_lowered = true;
1765 if (!must_be_lowered) {
1766 set_type_link(mtp, NULL);
1770 res = new_d_type_method(n_param, n_res, get_type_dbg_info(mtp));
1772 /* set param types and result types */
1773 for (i = n_param = 0; i < orig_n_params; ++i) {
1774 ir_type *tp = get_method_param_type(mtp, i);
1776 if (is_Primitive_type(tp)) {
1777 ir_mode *mode = get_type_mode(tp);
1779 if (mode == env->high_signed) {
1780 if (env->params->little_endian) {
1781 set_method_param_type(res, n_param++, tp_u);
1782 set_method_param_type(res, n_param++, tp_s);
1784 set_method_param_type(res, n_param++, tp_s);
1785 set_method_param_type(res, n_param++, tp_u);
1787 } else if (mode == env->high_unsigned) {
1788 set_method_param_type(res, n_param++, tp_u);
1789 set_method_param_type(res, n_param++, tp_u);
1791 set_method_param_type(res, n_param, tp);
1795 set_method_param_type(res, n_param, tp);
1799 for (i = n_res = 0; i < orig_n_res; ++i) {
1800 ir_type *tp = get_method_res_type(mtp, i);
1802 if (is_Primitive_type(tp)) {
1803 ir_mode *mode = get_type_mode(tp);
1805 if (mode == env->high_signed) {
1806 if (env->params->little_endian) {
1807 set_method_res_type(res, n_res++, tp_u);
1808 set_method_res_type(res, n_res++, tp_s);
1810 set_method_res_type(res, n_res++, tp_s);
1811 set_method_res_type(res, n_res++, tp_u);
1813 } else if (mode == env->high_unsigned) {
1814 set_method_res_type(res, n_res++, tp_u);
1815 set_method_res_type(res, n_res++, tp_u);
1817 set_method_res_type(res, n_res++, tp);
1820 set_method_res_type(res, n_res++, tp);
1824 set_method_variadicity(res, get_method_variadicity(mtp));
1825 set_method_calling_convention(res, get_method_calling_convention(mtp));
1826 set_method_additional_properties(res, get_method_additional_properties(mtp));
1828 set_higher_type(res, mtp);
1829 set_type_link(res, mtp);
1831 mark_type_visited(res);
1832 pmap_insert(lowered_type, mtp, res);
1837 * Translate a Return.
1839 static void lower_Return(ir_node *node, ir_mode *mode)
1841 ir_graph *irg = get_irn_irg(node);
1842 ir_entity *ent = get_irg_entity(irg);
1843 ir_type *mtp = get_entity_type(ent);
1849 /* check if this return must be lowered */
1850 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1851 ir_node *pred = get_Return_res(node, i);
1852 ir_mode *rmode = get_irn_op_mode(pred);
1854 if (rmode == env->high_signed || rmode == env->high_unsigned)
1860 ent = get_irg_entity(irg);
1861 mtp = get_entity_type(ent);
1863 /* create a new in array */
1864 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1866 in[j++] = get_Return_mem(node);
1868 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1869 ir_node *pred = get_Return_res(node, i);
1870 ir_mode *pred_mode = get_irn_mode(pred);
1872 if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
1873 const lower64_entry_t *entry = get_node_entry(pred);
1874 if (env->params->little_endian) {
1875 in[j++] = entry->low_word;
1876 in[j++] = entry->high_word;
1878 in[j++] = entry->high_word;
1879 in[j++] = entry->low_word;
1885 assert(j == get_method_n_ress(mtp)+1);
1887 set_irn_in(node, j, in);
1891 * Translate the parameters.
1893 static void lower_Start(ir_node *node, ir_mode *high_mode)
1895 ir_graph *irg = get_irn_irg(node);
1896 ir_entity *ent = get_irg_entity(irg);
1897 ir_type *mtp = get_entity_type(ent);
1898 ir_type *orig_mtp = (ir_type*)get_type_link(mtp);
1901 size_t i, j, n_params;
1904 /* if type link is NULL then the type was not lowered, hence no changes
1905 * at Start necessary */
1906 if (orig_mtp == NULL)
1909 n_params = get_method_n_params(orig_mtp);
1911 NEW_ARR_A(long, new_projs, n_params);
1913 /* Calculate mapping of proj numbers in new_projs */
1914 for (i = j = 0; i < n_params; ++i, ++j) {
1915 ir_type *ptp = get_method_param_type(orig_mtp, i);
1918 if (is_Primitive_type(ptp)) {
1919 ir_mode *amode = get_type_mode(ptp);
1920 if (amode == env->high_signed || amode == env->high_unsigned)
1925 /* find args Proj */
1927 foreach_out_edge(node, edge) {
1928 ir_node *proj = get_edge_src_irn(edge);
1931 if (get_Proj_proj(proj) == pn_Start_T_args) {
1939 /* fix all Proj's and create new ones */
1940 foreach_out_edge_safe(args, edge) {
1941 ir_node *proj = get_edge_src_irn(edge);
1942 ir_mode *mode = get_irn_mode(proj);
1943 ir_mode *mode_l = env->low_unsigned;
1954 pred = get_Proj_pred(proj);
1955 proj_nr = get_Proj_proj(proj);
1957 if (mode == env->high_signed) {
1958 mode_h = env->low_signed;
1959 } else if (mode == env->high_unsigned) {
1960 mode_h = env->low_unsigned;
1962 long new_pn = new_projs[proj_nr];
1963 set_Proj_proj(proj, new_pn);
1967 /* Switch off CSE or we might get an already existing Proj. */
1968 old_cse = get_opt_cse();
1970 dbg = get_irn_dbg_info(proj);
1971 if (env->params->little_endian) {
1972 res_low = new_rd_Proj(dbg, pred, mode_l, new_projs[proj_nr]);
1973 res_high = new_rd_Proj(dbg, pred, mode_h, new_projs[proj_nr] + 1);
1975 res_high = new_rd_Proj(dbg, pred, mode_h, new_projs[proj_nr]);
1976 res_low = new_rd_Proj(dbg, pred, mode_l, new_projs[proj_nr] + 1);
1978 set_opt_cse(old_cse);
1979 ir_set_dw_lowered(proj, res_low, res_high);
1986 static void lower_Call(ir_node *node, ir_mode *mode)
1988 ir_type *tp = get_Call_type(node);
1990 size_t n_params, n_res;
1991 bool need_lower = false;
1994 long *res_numbers = NULL;
1998 n_params = get_method_n_params(tp);
1999 for (p = 0; p < n_params; ++p) {
2000 ir_type *ptp = get_method_param_type(tp, p);
2002 if (is_Primitive_type(ptp)) {
2003 ir_mode *pmode = get_type_mode(ptp);
2004 if (pmode == env->high_signed || pmode == env->high_unsigned) {
2010 n_res = get_method_n_ress(tp);
2012 NEW_ARR_A(long, res_numbers, n_res);
2014 for (i = j = 0; i < n_res; ++i, ++j) {
2015 ir_type *ptp = get_method_res_type(tp, i);
2018 if (is_Primitive_type(ptp)) {
2019 ir_mode *rmode = get_type_mode(ptp);
2020 if (rmode == env->high_signed || rmode == env->high_unsigned) {
2031 /* let's lower it */
2033 set_Call_type(node, tp);
2035 NEW_ARR_A(ir_node *, in, get_method_n_params(tp) + 2);
2037 in[0] = get_Call_mem(node);
2038 in[1] = get_Call_ptr(node);
2040 for (j = 2, i = 0; i < n_params; ++i) {
2041 ir_node *pred = get_Call_param(node, i);
2042 ir_mode *pred_mode = get_irn_mode(pred);
2044 if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
2045 const lower64_entry_t *pred_entry = get_node_entry(pred);
2046 if (env->params->little_endian) {
2047 in[j++] = pred_entry->low_word;
2048 in[j++] = pred_entry->high_word;
2050 in[j++] = pred_entry->high_word;
2051 in[j++] = pred_entry->low_word;
2058 set_irn_in(node, j, in);
2060 /* find results T */
2062 foreach_out_edge(node, edge) {
2063 ir_node *proj = get_edge_src_irn(edge);
2066 if (get_Proj_proj(proj) == pn_Call_T_result) {
2071 if (resproj == NULL)
2074 /* fix the results */
2075 foreach_out_edge_safe(resproj, edge) {
2076 ir_node *proj = get_edge_src_irn(edge);
2077 ir_mode *proj_mode = get_irn_mode(proj);
2078 ir_mode *mode_l = env->low_unsigned;
2088 pred = get_Proj_pred(proj);
2089 proj_nr = get_Proj_proj(proj);
2091 if (proj_mode == env->high_signed) {
2092 mode_h = env->low_signed;
2093 } else if (proj_mode == env->high_unsigned) {
2094 mode_h = env->low_unsigned;
2096 long new_nr = res_numbers[proj_nr];
2097 set_Proj_proj(proj, new_nr);
2101 dbg = get_irn_dbg_info(proj);
2102 if (env->params->little_endian) {
2103 res_low = new_rd_Proj(dbg, pred, mode_l, res_numbers[proj_nr]);
2104 res_high = new_rd_Proj(dbg, pred, mode_h, res_numbers[proj_nr] + 1);
2106 res_high = new_rd_Proj(dbg, pred, mode_h, res_numbers[proj_nr]);
2107 res_low = new_rd_Proj(dbg, pred, mode_l, res_numbers[proj_nr] + 1);
2109 ir_set_dw_lowered(proj, res_low, res_high);
2114 * Translate an Unknown into two.
2116 static void lower_Unknown(ir_node *node, ir_mode *mode)
2118 ir_mode *low_mode = env->low_unsigned;
2119 ir_graph *irg = get_irn_irg(node);
2120 ir_node *res_low = new_r_Unknown(irg, low_mode);
2121 ir_node *res_high = new_r_Unknown(irg, mode);
2122 ir_set_dw_lowered(node, res_low, res_high);
2126 * Translate a Bad into two.
2128 static void lower_Bad(ir_node *node, ir_mode *mode)
2130 ir_mode *low_mode = env->low_unsigned;
2131 ir_graph *irg = get_irn_irg(node);
2132 ir_node *res_low = new_r_Bad(irg, low_mode);
2133 ir_node *res_high = new_r_Bad(irg, mode);
2134 ir_set_dw_lowered(node, res_low, res_high);
2140 * First step: just create two templates
2142 static void lower_Phi(ir_node *phi)
2144 ir_mode *mode = get_irn_mode(phi);
2159 /* enqueue predecessors */
2160 arity = get_Phi_n_preds(phi);
2161 for (i = 0; i < arity; ++i) {
2162 ir_node *pred = get_Phi_pred(phi, i);
2163 pdeq_putr(env->waitq, pred);
2166 if (mode != env->high_signed && mode != env->high_unsigned)
2169 /* first create a new in array */
2170 NEW_ARR_A(ir_node *, in_l, arity);
2171 NEW_ARR_A(ir_node *, in_h, arity);
2172 irg = get_irn_irg(phi);
2173 mode_l = env->low_unsigned;
2174 mode_h = mode == env->high_signed ? env->low_signed : env->low_unsigned;
2175 unk_l = new_r_Dummy(irg, mode_l);
2176 unk_h = new_r_Dummy(irg, mode_h);
2177 for (i = 0; i < arity; ++i) {
2182 dbg = get_irn_dbg_info(phi);
2183 block = get_nodes_block(phi);
2184 phi_l = new_rd_Phi(dbg, block, arity, in_l, mode_l);
2185 phi_h = new_rd_Phi(dbg, block, arity, in_h, mode_h);
2187 ir_set_dw_lowered(phi, phi_l, phi_h);
2189 /* remember that we need to fixup the predecessors later */
2190 ARR_APP1(ir_node*, env->lowered_phis, phi);
2193 static void fixup_phi(ir_node *phi)
2195 const lower64_entry_t *entry = get_node_entry(phi);
2196 ir_node *phi_l = entry->low_word;
2197 ir_node *phi_h = entry->high_word;
2198 int arity = get_Phi_n_preds(phi);
2201 /* exchange phi predecessors which are lowered by now */
2202 for (i = 0; i < arity; ++i) {
2203 ir_node *pred = get_Phi_pred(phi, i);
2204 const lower64_entry_t *pred_entry = get_node_entry(pred);
2206 set_Phi_pred(phi_l, i, pred_entry->low_word);
2207 set_Phi_pred(phi_h, i, pred_entry->high_word);
2214 static void lower_Mux(ir_node *mux, ir_mode *mode)
2216 ir_node *truen = get_Mux_true(mux);
2217 ir_node *falsen = get_Mux_false(mux);
2218 ir_node *sel = get_Mux_sel(mux);
2219 const lower64_entry_t *true_entry = get_node_entry(truen);
2220 const lower64_entry_t *false_entry = get_node_entry(falsen);
2221 ir_node *true_l = true_entry->low_word;
2222 ir_node *true_h = true_entry->high_word;
2223 ir_node *false_l = false_entry->low_word;
2224 ir_node *false_h = false_entry->high_word;
2225 dbg_info *dbgi = get_irn_dbg_info(mux);
2226 ir_node *block = get_nodes_block(mux);
2228 = new_rd_Mux(dbgi, block, sel, false_l, true_l, env->low_unsigned);
2230 = new_rd_Mux(dbgi, block, sel, false_h, true_h, mode);
2231 ir_set_dw_lowered(mux, res_low, res_high);
2235 * Translate an ASM node.
2237 static void lower_ASM(ir_node *asmn, ir_mode *mode)
2239 ir_mode *high_signed = env->high_signed;
2240 ir_mode *high_unsigned = env->high_unsigned;
2241 int n_outs = get_ASM_n_output_constraints(asmn);
2242 ir_asm_constraint *output_constraints = get_ASM_output_constraints(asmn);
2243 ir_asm_constraint *input_constraints = get_ASM_input_constraints(asmn);
2244 unsigned n_64bit_outs = 0;
2248 for (int i = get_irn_arity(asmn) - 1; i >= 0; --i) {
2249 ir_node *op = get_irn_n(asmn, i);
2250 ir_mode *op_mode = get_irn_mode(op);
2251 if (op_mode == high_signed || op_mode == high_unsigned) {
2252 panic("lowering ASM 64bit input unimplemented");
2256 for (int o = 0; o < n_outs; ++o) {
2257 const ir_asm_constraint *constraint = &output_constraints[o];
2258 if (constraint->mode == high_signed || constraint->mode == high_unsigned) {
2259 const char *constr = get_id_str(constraint->constraint);
2261 /* TODO: How to do this architecture neutral? This is very
2262 * i386 specific... */
2263 if (constr[0] != '=' || constr[1] != 'A') {
2264 panic("lowering ASM 64bit output only supports '=A' currently");
2269 if (n_64bit_outs == 0)
2272 dbg_info *dbgi = get_irn_dbg_info(asmn);
2273 ir_node *block = get_nodes_block(asmn);
2274 ir_node *mem = get_ASM_mem(asmn);
2276 int n_clobber = get_ASM_n_clobbers(asmn);
2277 long *proj_map = ALLOCAN(long, n_outs);
2278 ident **clobbers = get_ASM_clobbers(asmn);
2279 ident *asm_text = get_ASM_text(asmn);
2280 ir_asm_constraint *new_outputs
2281 = ALLOCAN(ir_asm_constraint, n_outs+n_64bit_outs);
2284 for (int o = 0; o < n_outs; ++o) {
2285 const ir_asm_constraint *constraint = &output_constraints[o];
2286 if (constraint->mode == high_signed || constraint->mode == high_unsigned) {
2287 new_outputs[new_n_outs].pos = constraint->pos;
2288 new_outputs[new_n_outs].constraint = new_id_from_str("=a");
2289 new_outputs[new_n_outs].mode = env->low_unsigned;
2290 proj_map[o] = new_n_outs;
2292 new_outputs[new_n_outs].pos = constraint->pos;
2293 new_outputs[new_n_outs].constraint = new_id_from_str("=d");
2294 if (constraint->mode == high_signed)
2295 new_outputs[new_n_outs].mode = env->low_signed;
2297 new_outputs[new_n_outs].mode = env->low_unsigned;
2300 new_outputs[new_n_outs] = *constraint;
2301 proj_map[o] = new_n_outs;
2305 assert(new_n_outs == n_outs+(int)n_64bit_outs);
2307 int n_inputs = get_ASM_n_inputs(asmn);
2308 ir_node **new_ins = ALLOCAN(ir_node*, n_inputs);
2309 for (int i = 0; i < n_inputs; ++i)
2310 new_ins[i] = get_ASM_input(asmn, i);
2312 new_asm = new_rd_ASM(dbgi, block, mem, n_inputs, new_ins, input_constraints,
2313 new_n_outs, new_outputs, n_clobber, clobbers,
2316 foreach_out_edge_safe(asmn, edge) {
2317 ir_node *proj = get_edge_src_irn(edge);
2318 ir_mode *proj_mode = get_irn_mode(proj);
2323 pn = get_Proj_proj(proj);
2328 pn = new_n_outs + pn - n_outs;
2330 if (proj_mode == high_signed || proj_mode == high_unsigned) {
2332 = proj_mode == high_signed ? env->low_signed : env->low_unsigned;
2333 ir_node *np_low = new_r_Proj(new_asm, env->low_unsigned, pn);
2334 ir_node *np_high = new_r_Proj(new_asm, high_mode, pn+1);
2335 ir_set_dw_lowered(proj, np_low, np_high);
2337 ir_node *np = new_r_Proj(new_asm, proj_mode, pn);
2344 * Lower the builtin type to its higher part.
2346 * @param mtp the builtin type to lower
2348 * @return the lowered type
2350 static ir_type *lower_Builtin_type_high(ir_type *mtp)
2356 bool must_be_lowered;
2358 res = pmap_get(ir_type, lowered_builtin_type_high, mtp);
2362 n_params = get_method_n_params(mtp);
2363 n_results = get_method_n_ress(mtp);
2364 must_be_lowered = false;
2366 /* check for double word parameter */
2367 for (i = n_params; i > 0;) {
2368 ir_type *tp = get_method_param_type(mtp, --i);
2370 if (is_Primitive_type(tp)) {
2371 ir_mode *mode = get_type_mode(tp);
2373 if (mode == env->high_signed || mode == env->high_unsigned) {
2374 must_be_lowered = true;
2380 if (!must_be_lowered) {
2381 set_type_link(mtp, NULL);
2385 res = new_d_type_method(n_params, n_results, get_type_dbg_info(mtp));
2387 /* set param types and result types */
2388 for (i = 0; i < n_params; ++i) {
2389 ir_type *tp = get_method_param_type(mtp, i);
2391 if (is_Primitive_type(tp)) {
2392 ir_mode *mode = get_type_mode(tp);
2394 if (mode == env->high_signed) {
2395 if (env->params->little_endian) {
2396 set_method_param_type(res, i, tp_u);
2398 set_method_param_type(res, i, tp_s);
2400 } else if (mode == env->high_unsigned) {
2401 set_method_param_type(res, i, tp_u);
2403 set_method_param_type(res, i, tp);
2406 set_method_param_type(res, i, tp);
2409 for (i = n_results = 0; i < n_results; ++i) {
2410 ir_type *tp = get_method_res_type(mtp, i);
2412 if (is_Primitive_type(tp)) {
2413 ir_mode *mode = get_type_mode(tp);
2415 if (mode == env->high_signed) {
2416 if (env->params->little_endian) {
2417 set_method_res_type(res, i, tp_u);
2419 set_method_res_type(res, i, tp_s);
2421 } else if (mode == env->high_unsigned) {
2422 set_method_res_type(res, i, tp_u);
2424 set_method_res_type(res, i, tp);
2427 set_method_res_type(res, i, tp);
2431 set_method_variadicity(res, get_method_variadicity(mtp));
2432 set_method_calling_convention(res, get_method_calling_convention(mtp));
2433 set_method_additional_properties(res, get_method_additional_properties(mtp));
2435 pmap_insert(lowered_builtin_type_high, mtp, res);
2440 * Lower the builtin type to its lower part.
2442 * @param mtp the builtin type to lower
2444 * @return the lowered type
2446 static ir_type *lower_Builtin_type_low(ir_type *mtp)
2452 bool must_be_lowered;
2454 res = pmap_get(ir_type, lowered_builtin_type_low, mtp);
2458 n_params = get_method_n_params(mtp);
2459 n_results = get_method_n_ress(mtp);
2460 must_be_lowered = false;
2462 /* check for double word parameter */
2463 for (i = n_params; i > 0;) {
2464 ir_type *tp = get_method_param_type(mtp, --i);
2466 if (is_Primitive_type(tp)) {
2467 ir_mode *mode = get_type_mode(tp);
2469 if (mode == env->high_signed || mode == env->high_unsigned) {
2470 must_be_lowered = true;
2476 if (!must_be_lowered) {
2477 set_type_link(mtp, NULL);
2481 res = new_d_type_method(n_params, n_results, get_type_dbg_info(mtp));
2483 /* set param types and result types */
2484 for (i = 0; i < n_params; ++i) {
2485 ir_type *tp = get_method_param_type(mtp, i);
2487 if (is_Primitive_type(tp)) {
2488 ir_mode *mode = get_type_mode(tp);
2490 if (mode == env->high_signed) {
2491 if (env->params->little_endian) {
2492 set_method_param_type(res, i, tp_s);
2494 set_method_param_type(res, i, tp_u);
2496 } else if (mode == env->high_unsigned) {
2497 set_method_param_type(res, i, tp_u);
2499 set_method_param_type(res, i, tp);
2502 set_method_param_type(res, i, tp);
2505 for (i = 0; i < n_results; ++i) {
2506 ir_type *tp = get_method_res_type(mtp, i);
2508 if (is_Primitive_type(tp)) {
2509 ir_mode *mode = get_type_mode(tp);
2511 if (mode == env->high_signed) {
2512 if (env->params->little_endian) {
2513 set_method_res_type(res, i, tp_s);
2515 set_method_res_type(res, i, tp_u);
2517 } else if (mode == env->high_unsigned) {
2518 set_method_res_type(res, i, tp_u);
2520 set_method_res_type(res, i, tp);
2523 set_method_res_type(res, i, tp);
2527 set_method_variadicity(res, get_method_variadicity(mtp));
2528 set_method_calling_convention(res, get_method_calling_convention(mtp));
2529 set_method_additional_properties(res, get_method_additional_properties(mtp));
2531 pmap_insert(lowered_builtin_type_low, mtp, res);
2536 * lowers a builtin which reduces a 64bit value to a simple summary value
2537 * (popcount, ffs, ...)
2539 static void lower_reduce_builtin(ir_node *builtin, ir_mode *mode)
2541 ir_builtin_kind kind = get_Builtin_kind(builtin);
2542 ir_node *operand = get_Builtin_param(builtin, 0);
2543 ir_mode *operand_mode = get_irn_mode(operand);
2544 if (operand_mode != env->high_signed && operand_mode != env->high_unsigned)
2548 arch_allow_ifconv_func allow_ifconv = be_get_backend_param()->allow_ifconv;
2549 int arity = get_irn_arity(builtin);
2550 dbg_info *dbgi = get_irn_dbg_info(builtin);
2551 ir_graph *irg = get_irn_irg(builtin);
2552 ir_type *type = get_Builtin_type(builtin);
2553 ir_type *lowered_type_high = lower_Builtin_type_high(type);
2554 ir_type *lowered_type_low = lower_Builtin_type_low(type);
2555 ir_type *result_type = get_method_res_type(lowered_type_low, 0);
2556 ir_mode *result_mode = get_type_mode(result_type);
2557 ir_node *block = get_nodes_block(builtin);
2558 ir_node *mem = get_Builtin_mem(builtin);
2559 const lower64_entry_t *entry = get_node_entry(operand);
2560 ir_mode *high_mode = get_irn_mode(entry->high_word);
2561 ir_node *in_high[1] = {entry->high_word};
2562 ir_node *in_low[1] = {entry->low_word};
2565 assert(is_NoMem(mem));
2570 ir_node *number_of_bits = new_r_Const_long(irg, result_mode, get_mode_size_bits(env->low_unsigned));
2571 ir_node *zero_high = new_rd_Const(dbgi, irg, get_mode_null(high_mode));
2572 ir_node *zero_unsigned = new_rd_Const(dbgi, irg, get_mode_null(env->low_unsigned));
2573 ir_node *zero_result = new_rd_Const(dbgi, irg, get_mode_null(result_mode));
2574 ir_node *cmp_low = new_rd_Cmp(dbgi, block, entry->low_word, zero_unsigned, ir_relation_equal);
2575 ir_node *cmp_high = new_rd_Cmp(dbgi, block, entry->high_word, zero_high, ir_relation_equal);
2576 ir_node *ffs_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
2577 ir_node *high_proj = new_r_Proj(ffs_high, result_mode, pn_Builtin_max+1);
2578 ir_node *high = new_rd_Add(dbgi, block, high_proj, number_of_bits, result_mode);
2579 ir_node *ffs_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
2580 ir_node *low = new_r_Proj(ffs_low, result_mode, pn_Builtin_max+1);
2581 ir_node *mux_high = new_rd_Mux(dbgi, block, cmp_high, high, zero_result, result_mode);
2583 if (! allow_ifconv(cmp_high, high, zero_result))
2584 ir_nodeset_insert(&created_mux_nodes, mux_high);
2586 res = new_rd_Mux(dbgi, block, cmp_low, low, mux_high, result_mode);
2588 if (! allow_ifconv(cmp_low, low, mux_high))
2589 ir_nodeset_insert(&created_mux_nodes, res);
2593 ir_node *zero = new_rd_Const(dbgi, irg, get_mode_null(high_mode));
2594 ir_node *cmp_high = new_rd_Cmp(dbgi, block, entry->high_word, zero, ir_relation_equal);
2595 ir_node *clz_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
2596 ir_node *high = new_r_Proj(clz_high, result_mode, pn_Builtin_max+1);
2597 ir_node *clz_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
2598 ir_node *low_proj = new_r_Proj(clz_low, result_mode, pn_Builtin_max+1);
2599 ir_node *number_of_bits = new_r_Const_long(irg, result_mode, get_mode_size_bits(mode));
2600 ir_node *low = new_rd_Add(dbgi, block, low_proj, number_of_bits, result_mode);
2602 res = new_rd_Mux(dbgi, block, cmp_high, high, low, result_mode);
2604 if (! allow_ifconv(cmp_high, high, low))
2605 ir_nodeset_insert(&created_mux_nodes, res);
2609 ir_node *zero_unsigned = new_rd_Const(dbgi, irg, get_mode_null(env->low_unsigned));
2610 ir_node *cmp_low = new_rd_Cmp(dbgi, block, entry->low_word, zero_unsigned, ir_relation_equal);
2611 ir_node *ffs_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
2612 ir_node *high_proj = new_r_Proj(ffs_high, result_mode, pn_Builtin_max+1);
2613 ir_node *number_of_bits = new_r_Const_long(irg, result_mode, get_mode_size_bits(env->low_unsigned));
2614 ir_node *high = new_rd_Add(dbgi, block, high_proj, number_of_bits, result_mode);
2615 ir_node *ffs_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
2616 ir_node *low = new_r_Proj(ffs_low, result_mode, pn_Builtin_max+1);
2618 res = new_rd_Mux(dbgi, block, cmp_low, low, high, result_mode);
2620 if (! allow_ifconv(cmp_low, low, high))
2621 ir_nodeset_insert(&created_mux_nodes, res);
2624 case ir_bk_popcount: {
2625 ir_node *popcount_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
2626 ir_node *popcount_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
2627 ir_node *high = new_r_Proj(popcount_high, result_mode, pn_Builtin_max+1);
2628 ir_node *low = new_r_Proj(popcount_low, result_mode, pn_Builtin_max+1);
2630 res = new_rd_Add(dbgi, block, high, low, result_mode);
2633 case ir_bk_parity: {
2634 ir_node *parity_high;
2635 ir_node *parity_low;
2641 parity_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
2642 high = new_r_Proj(parity_high, result_mode, pn_Builtin_max+1);
2643 parity_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
2644 low = new_r_Proj(parity_low, result_mode, pn_Builtin_max+1);
2645 res = new_rd_Eor(dbgi, block, high, low, result_mode);
2649 panic("unexpected builtin");
2652 turn_into_tuple(builtin, 2);
2653 set_irn_n(builtin, pn_Builtin_M, mem);
2654 set_irn_n(builtin, pn_Builtin_max+1, res);
2659 * lowers builtins performing arithmetic (bswap)
2661 static void lower_arithmetic_builtin(ir_node *builtin, ir_mode *mode)
2663 ir_builtin_kind kind = get_Builtin_kind(builtin);
2664 ir_node *operand = get_Builtin_param(builtin, 0);
2665 ir_mode *operand_mode = get_irn_mode(operand);
2667 if (operand_mode != env->high_signed && operand_mode != env->high_unsigned)
2671 dbg_info *dbgi = get_irn_dbg_info(builtin);
2672 ir_type *type = get_Builtin_type(builtin);
2673 ir_type *lowered_type_high = lower_Builtin_type_high(type);
2674 ir_type *lowered_type_low = lower_Builtin_type_low(type);
2675 ir_node *block = get_nodes_block(builtin);
2676 ir_node *mem = get_Builtin_mem(builtin);
2677 const lower64_entry_t *entry = get_node_entry(operand);
2678 ir_mode *mode_high = get_irn_mode(entry->high_word);
2684 ir_node *in_high[1] = { entry->high_word };
2685 ir_node *in_low[1] = { entry->low_word };
2686 ir_node *swap_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
2687 ir_node *swap_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
2688 ir_node *high = new_r_Proj(swap_high, mode_high, pn_Builtin_max+1);
2689 ir_node *low = new_r_Proj(swap_low, env->low_unsigned, pn_Builtin_max+1);
2690 if (mode_high == env->low_signed) {
2691 res_high = new_rd_Conv(dbgi, block, low, env->low_signed);
2692 res_low = new_rd_Conv(dbgi, block, high, env->low_unsigned);
2700 panic("unexpected builtin");
2703 /* search result Proj */
2704 foreach_out_edge_safe(builtin, edge) {
2705 ir_node *proj = get_edge_src_irn(edge);
2709 if (get_Proj_proj(proj) == pn_Builtin_max+1) {
2710 ir_set_dw_lowered(proj, res_low, res_high);
2717 * Lower double word builtins.
2719 static void lower_Builtin(ir_node *builtin, ir_mode *mode)
2721 ir_builtin_kind kind = get_Builtin_kind(builtin);
2725 case ir_bk_debugbreak:
2726 case ir_bk_return_address:
2727 case ir_bk_frame_address:
2728 case ir_bk_prefetch:
2731 case ir_bk_inner_trampoline:
2732 /* Nothing to do. */
2735 lower_arithmetic_builtin(builtin, mode);
2740 case ir_bk_popcount:
2742 lower_reduce_builtin(builtin, mode);
2745 panic("unknown builtin");
2749 * check for opcodes that must always be lowered.
2751 static bool always_lower(unsigned code)
2770 * Compare two op_mode_entry_t's.
2772 static int cmp_op_mode(const void *elt, const void *key, size_t size)
2774 const op_mode_entry_t *e1 = (const op_mode_entry_t*)elt;
2775 const op_mode_entry_t *e2 = (const op_mode_entry_t*)key;
2778 return (e1->op != e2->op) | (e1->imode != e2->imode) | (e1->omode != e2->omode);
2782 * Compare two conv_tp_entry_t's.
2784 static int cmp_conv_tp(const void *elt, const void *key, size_t size)
2786 const conv_tp_entry_t *e1 = (const conv_tp_entry_t*)elt;
2787 const conv_tp_entry_t *e2 = (const conv_tp_entry_t*)key;
2790 return (e1->imode != e2->imode) | (e1->omode != e2->omode);
2794 * Enter a lowering function into an ir_op.
2796 void ir_register_dw_lower_function(ir_op *op, lower_dw_func func)
2798 op->ops.generic = (op_func)func;
2801 /* Determine which modes need to be lowered */
2802 static void setup_modes(void)
2804 unsigned size_bits = env->params->doubleword_size;
2805 ir_mode *doubleword_signed = NULL;
2806 ir_mode *doubleword_unsigned = NULL;
2807 size_t n_modes = ir_get_n_modes();
2808 ir_mode_arithmetic arithmetic;
2809 unsigned modulo_shift;
2812 /* search for doubleword modes... */
2813 for (i = 0; i < n_modes; ++i) {
2814 ir_mode *mode = ir_get_mode(i);
2815 if (!mode_is_int(mode))
2817 if (get_mode_size_bits(mode) != size_bits)
2819 if (mode_is_signed(mode)) {
2820 if (doubleword_signed != NULL) {
2821 /* sigh - the lowerer should really just lower all mode with
2822 * size_bits it finds. Unfortunately this required a bigger
2824 panic("multiple double word signed modes found");
2826 doubleword_signed = mode;
2828 if (doubleword_unsigned != NULL) {
2829 /* sigh - the lowerer should really just lower all mode with
2830 * size_bits it finds. Unfortunately this required a bigger
2832 panic("multiple double word unsigned modes found");
2834 doubleword_unsigned = mode;
2837 if (doubleword_signed == NULL || doubleword_unsigned == NULL) {
2838 panic("Couldn't find doubleword modes");
2841 arithmetic = get_mode_arithmetic(doubleword_signed);
2842 modulo_shift = get_mode_modulo_shift(doubleword_signed);
2844 assert(get_mode_size_bits(doubleword_unsigned) == size_bits);
2845 assert(size_bits % 2 == 0);
2846 assert(get_mode_sign(doubleword_signed) == 1);
2847 assert(get_mode_sign(doubleword_unsigned) == 0);
2848 assert(get_mode_sort(doubleword_signed) == irms_int_number);
2849 assert(get_mode_sort(doubleword_unsigned) == irms_int_number);
2850 assert(get_mode_arithmetic(doubleword_unsigned) == arithmetic);
2851 assert(get_mode_modulo_shift(doubleword_unsigned) == modulo_shift);
2853 /* try to guess a sensible modulo shift for the new mode.
2854 * (This is IMO another indication that this should really be a node
2855 * attribute instead of a mode thing) */
2856 if (modulo_shift == size_bits) {
2857 modulo_shift = modulo_shift / 2;
2858 } else if (modulo_shift == 0) {
2861 panic("Don't know what new modulo shift to use for lowered doubleword mode");
2865 /* produce lowered modes */
2866 env->high_signed = doubleword_signed;
2867 env->high_unsigned = doubleword_unsigned;
2868 env->low_signed = new_int_mode("WS", arithmetic, size_bits, 1,
2870 env->low_unsigned = new_int_mode("WU", arithmetic, size_bits, 0,
2874 static void enqueue_preds(ir_node *node)
2876 int arity = get_irn_arity(node);
2879 for (i = 0; i < arity; ++i) {
2880 ir_node *pred = get_irn_n(node, i);
2881 pdeq_putr(env->waitq, pred);
2885 static void lower_node(ir_node *node)
2893 lower64_entry_t *entry;
2895 if (irn_visited_else_mark(node))
2898 /* cycles are always broken at Phi and Block nodes. So we don't need special
2899 * magic in all the other lower functions */
2900 if (is_Block(node)) {
2901 enqueue_preds(node);
2903 } else if (is_Phi(node)) {
2908 /* depth-first: descend into operands */
2909 if (!is_Block(node)) {
2910 ir_node *block = get_nodes_block(node);
2914 if (!is_Cond(node)) {
2915 arity = get_irn_arity(node);
2916 for (i = 0; i < arity; ++i) {
2917 ir_node *pred = get_irn_n(node, i);
2922 op = get_irn_op(node);
2923 func = (lower_dw_func) op->ops.generic;
2927 idx = get_irn_idx(node);
2928 entry = idx < env->n_entries ? env->entries[idx] : NULL;
2929 if (entry != NULL || always_lower(get_irn_opcode(node))) {
2930 mode = get_irn_op_mode(node);
2931 if (mode == env->high_signed) {
2932 mode = env->low_signed;
2934 mode = env->low_unsigned;
2936 DB((dbg, LEVEL_1, " %+F\n", node));
2941 static void clear_node_and_phi_links(ir_node *node, void *data)
2944 if (get_irn_mode(node) == mode_T) {
2945 set_irn_link(node, node);
2947 set_irn_link(node, NULL);
2950 set_Block_phis(node, NULL);
2951 else if (is_Phi(node))
2952 set_Phi_next(node, NULL);
2955 static void lower_irg(ir_graph *irg)
2959 ir_type *lowered_mtp;
2962 obstack_init(&env->obst);
2964 /* just here for debugging */
2965 current_ir_graph = irg;
2968 n_idx = get_irg_last_idx(irg);
2969 n_idx = n_idx + (n_idx >> 2); /* add 25% */
2970 env->n_entries = n_idx;
2971 env->entries = NEW_ARR_F(lower64_entry_t*, n_idx);
2972 memset(env->entries, 0, sizeof(env->entries[0]) * n_idx);
2977 ent = get_irg_entity(irg);
2978 mtp = get_entity_type(ent);
2979 lowered_mtp = lower_mtp(mtp);
2981 if (lowered_mtp != mtp) {
2982 set_entity_type(ent, lowered_mtp);
2983 env->flags |= MUST_BE_LOWERED;
2985 fix_parameter_entities(irg, mtp);
2988 /* first step: link all nodes and allocate data */
2989 ir_reserve_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
2990 visit_all_identities(irg, clear_node_and_phi_links, NULL);
2991 irg_walk_graph(irg, NULL, prepare_links_and_handle_rotl, env);
2993 if (env->flags & MUST_BE_LOWERED) {
2995 ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
2996 inc_irg_visited(irg);
2998 assert(pdeq_empty(env->waitq));
2999 pdeq_putr(env->waitq, get_irg_end(irg));
3001 env->lowered_phis = NEW_ARR_F(ir_node*, 0);
3002 while (!pdeq_empty(env->waitq)) {
3003 ir_node *node = (ir_node*)pdeq_getl(env->waitq);
3007 /* we need to fixup phis */
3008 for (i = 0; i < ARR_LEN(env->lowered_phis); ++i) {
3009 ir_node *phi = env->lowered_phis[i];
3012 DEL_ARR_F(env->lowered_phis);
3015 ir_free_resources(irg, IR_RESOURCE_IRN_VISITED);
3017 if (env->flags & CF_CHANGED) {
3018 /* control flow changed, dominance info is invalid */
3019 clear_irg_properties(irg, IR_GRAPH_PROPERTY_CONSISTENT_DOMINANCE);
3021 edges_deactivate(irg);
3024 ir_free_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
3026 DEL_ARR_F(env->entries);
3027 obstack_free(&env->obst, NULL);
3030 static const lwrdw_param_t *param;
3032 void ir_prepare_dw_lowering(const lwrdw_param_t *new_param)
3034 assert(new_param != NULL);
3035 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
3039 ir_clear_opcodes_generic_func();
3040 ir_register_dw_lower_function(op_ASM, lower_ASM);
3041 ir_register_dw_lower_function(op_Add, lower_binop);
3042 ir_register_dw_lower_function(op_And, lower_And);
3043 ir_register_dw_lower_function(op_Bad, lower_Bad);
3044 ir_register_dw_lower_function(op_Builtin, lower_Builtin);
3045 ir_register_dw_lower_function(op_Call, lower_Call);
3046 ir_register_dw_lower_function(op_Cmp, lower_Cmp);
3047 ir_register_dw_lower_function(op_Cond, lower_Cond);
3048 ir_register_dw_lower_function(op_Const, lower_Const);
3049 ir_register_dw_lower_function(op_Conv, lower_Conv);
3050 ir_register_dw_lower_function(op_Div, lower_Div);
3051 ir_register_dw_lower_function(op_Eor, lower_Eor);
3052 ir_register_dw_lower_function(op_Load, lower_Load);
3053 ir_register_dw_lower_function(op_Minus, lower_unop);
3054 ir_register_dw_lower_function(op_Mod, lower_Mod);
3055 ir_register_dw_lower_function(op_Mul, lower_binop);
3056 ir_register_dw_lower_function(op_Mux, lower_Mux);
3057 ir_register_dw_lower_function(op_Not, lower_Not);
3058 ir_register_dw_lower_function(op_Or, lower_Or);
3059 ir_register_dw_lower_function(op_Proj, lower_Proj);
3060 ir_register_dw_lower_function(op_Return, lower_Return);
3061 ir_register_dw_lower_function(op_Shl, lower_Shl);
3062 ir_register_dw_lower_function(op_Shr, lower_Shr);
3063 ir_register_dw_lower_function(op_Shrs, lower_Shrs);
3064 ir_register_dw_lower_function(op_Start, lower_Start);
3065 ir_register_dw_lower_function(op_Store, lower_Store);
3066 ir_register_dw_lower_function(op_Sub, lower_binop);
3067 ir_register_dw_lower_function(op_Switch, lower_Switch);
3068 ir_register_dw_lower_function(op_Unknown, lower_Unknown);
3072 * Callback to lower only the Mux nodes we created.
3074 static int lower_mux_cb(ir_node *mux)
3076 return ir_nodeset_contains(&created_mux_nodes, mux);
3082 void ir_lower_dw_ops(void)
3084 lower_dw_env_t lenv;
3087 memset(&lenv, 0, sizeof(lenv));
3088 lenv.params = param;
3093 /* create the necessary maps */
3094 if (! intrinsic_fkt)
3095 intrinsic_fkt = new_set(cmp_op_mode, iro_Last + 1);
3097 conv_types = new_set(cmp_conv_tp, 16);
3099 lowered_type = pmap_create();
3100 if (! lowered_builtin_type_low)
3101 lowered_builtin_type_low = pmap_create();
3102 if (! lowered_builtin_type_high)
3103 lowered_builtin_type_high = pmap_create();
3105 /* create a primitive unsigned and signed type */
3107 tp_u = get_type_for_mode(lenv.low_unsigned);
3109 tp_s = get_type_for_mode(lenv.low_signed);
3111 /* create method types for the created binop calls */
3113 binop_tp_u = new_type_method(4, 2);
3114 set_method_param_type(binop_tp_u, 0, tp_u);
3115 set_method_param_type(binop_tp_u, 1, tp_u);
3116 set_method_param_type(binop_tp_u, 2, tp_u);
3117 set_method_param_type(binop_tp_u, 3, tp_u);
3118 set_method_res_type(binop_tp_u, 0, tp_u);
3119 set_method_res_type(binop_tp_u, 1, tp_u);
3122 binop_tp_s = new_type_method(4, 2);
3123 if (env->params->little_endian) {
3124 set_method_param_type(binop_tp_s, 0, tp_u);
3125 set_method_param_type(binop_tp_s, 1, tp_s);
3126 set_method_param_type(binop_tp_s, 2, tp_u);
3127 set_method_param_type(binop_tp_s, 3, tp_s);
3128 set_method_res_type(binop_tp_s, 0, tp_u);
3129 set_method_res_type(binop_tp_s, 1, tp_s);
3131 set_method_param_type(binop_tp_s, 0, tp_s);
3132 set_method_param_type(binop_tp_s, 1, tp_u);
3133 set_method_param_type(binop_tp_s, 2, tp_s);
3134 set_method_param_type(binop_tp_s, 3, tp_u);
3135 set_method_res_type(binop_tp_s, 0, tp_s);
3136 set_method_res_type(binop_tp_s, 1, tp_u);
3140 unop_tp_u = new_type_method(2, 2);
3141 set_method_param_type(unop_tp_u, 0, tp_u);
3142 set_method_param_type(unop_tp_u, 1, tp_u);
3143 set_method_res_type(unop_tp_u, 0, tp_u);
3144 set_method_res_type(unop_tp_u, 1, tp_u);
3147 unop_tp_s = new_type_method(2, 2);
3148 if (env->params->little_endian) {
3149 set_method_param_type(unop_tp_s, 0, tp_u);
3150 set_method_param_type(unop_tp_s, 1, tp_s);
3151 set_method_res_type(unop_tp_s, 0, tp_u);
3152 set_method_res_type(unop_tp_s, 1, tp_s);
3154 set_method_param_type(unop_tp_s, 0, tp_s);
3155 set_method_param_type(unop_tp_s, 1, tp_u);
3156 set_method_res_type(unop_tp_s, 0, tp_s);
3157 set_method_res_type(unop_tp_s, 1, tp_u);
3161 lenv.tv_mode_bytes = new_tarval_from_long(param->doubleword_size/(2*8), lenv.low_unsigned);
3162 lenv.waitq = new_pdeq();
3163 lenv.first_id = new_id_from_chars(param->little_endian ? ".l" : ".h", 2);
3164 lenv.next_id = new_id_from_chars(param->little_endian ? ".h" : ".l", 2);
3166 irp_reserve_resources(irp, IRP_RESOURCE_TYPE_LINK | IRP_RESOURCE_TYPE_VISITED);
3167 inc_master_type_visited();
3168 /* transform all graphs */
3169 for (i = 0, n = get_irp_n_irgs(); i < n; ++i) {
3170 ir_graph *irg = get_irp_irg(i);
3172 ir_nodeset_init(&created_mux_nodes);
3176 if (ir_nodeset_size(&created_mux_nodes) > 0)
3177 lower_mux(irg, lower_mux_cb);
3179 ir_nodeset_destroy(&created_mux_nodes);
3181 irp_free_resources(irp, IRP_RESOURCE_TYPE_LINK | IRP_RESOURCE_TYPE_VISITED);
3182 del_pdeq(lenv.waitq);
3187 /* Default implementation. */
3188 ir_entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
3189 const ir_mode *imode, const ir_mode *omode,
3197 if (imode == omode) {
3198 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
3200 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
3201 get_mode_name(imode), get_mode_name(omode));
3203 id = new_id_from_str(buf);
3205 ent = new_entity(get_glob_type(), id, method);
3206 set_entity_ld_ident(ent, get_entity_ident(ent));
3207 set_entity_visibility(ent, ir_visibility_external);