5 * @brief Lower Double word operations, ie Mode L -> I.
29 #include "irgraph_t.h"
34 #include "dbginfo_t.h"
35 #include "iropt_dbg.h"
49 /** A map from mode to a primitive type. */
50 static pmap *prim_types;
52 /** A map from (op, imode, omode) to Intrinsic functions entities. */
53 static set *intrinsic_fkt;
55 /** A map from (imode, omode) to conv function types. */
56 static set *conv_types;
58 /** A map from a method type to its lowered type. */
59 static pmap *lowered_type;
61 /** The types for the binop and unop intrinsics. */
62 static ir_type *binop_tp_u, *binop_tp_s, *unop_tp_u, *unop_tp_s, *tp_s, *tp_u;
64 /** the debug handle */
65 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
68 * An entry in the (op, imode, omode) -> entity map.
70 typedef struct _op_mode_entry {
71 const ir_op *op; /**< the op */
72 const ir_mode *imode; /**< the input mode */
73 const ir_mode *omode; /**< the output mode */
74 entity *ent; /**< the associated entity of this (op, imode, omode) triple */
78 * An entry in the (imode, omode) -> tp map.
80 typedef struct _conv_tp_entry {
81 const ir_mode *imode; /**< the input mode */
82 const ir_mode *omode; /**< the output mode */
83 ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
87 * Every double word node will be replaced,
88 * we need some store to hold the replacement:
90 typedef struct _node_entry_t {
91 ir_node *low_word; /**< the low word */
92 ir_node *high_word; /**< the high word */
96 MUST_BE_LOWERED = 1, /**< graph must be lowered */
97 CF_CHANGED = 2, /**< control flow was changed */
101 * The lower environment.
103 typedef struct _lower_env_t {
104 node_entry_t **entries; /**< entries per node */
105 struct obstack obst; /**< an obstack holding the temporary data */
106 tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
107 tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
108 pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
109 pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
110 const lwrdw_param_t *params; /**< transformation parameter */
111 unsigned flags; /**< some flags */
112 int n_entries; /**< number of entries */
116 * Get a primitive mode for a mode.
118 static ir_type *get_primitive_type(ir_mode *mode) {
119 pmap_entry *entry = pmap_find(prim_types, mode);
126 snprintf(buf, sizeof(buf), "_prim_%s", get_mode_name(mode));
127 tp = new_type_primitive(new_id_from_str(buf), mode);
129 pmap_insert(prim_types, mode, tp);
134 * Create a method type for a Conv emulation from imode to omode.
136 static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env) {
137 conv_tp_entry_t key, *entry;
144 entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
146 int n_param = 1, n_res = 1;
149 if (imode == env->params->high_signed || imode == env->params->high_unsigned)
151 if (omode == env->params->high_signed || omode == env->params->high_unsigned)
154 /* create a new one */
155 snprintf(buf, sizeof(buf), "LConv%s%s", get_mode_name(imode), get_mode_name(omode));
156 mtd = new_type_method(new_id_from_str(buf), n_param, n_res);
158 /* set param types and result types */
160 if (imode == env->params->high_signed) {
161 set_method_param_type(mtd, n_param++, tp_s);
162 set_method_param_type(mtd, n_param++, tp_s);
164 else if (imode == env->params->high_unsigned) {
165 set_method_param_type(mtd, n_param++, tp_u);
166 set_method_param_type(mtd, n_param++, tp_u);
169 ir_type *tp = get_primitive_type(imode);
170 set_method_param_type(mtd, n_param++, tp);
174 if (omode == env->params->high_signed) {
175 set_method_res_type(mtd, n_res++, tp_s);
176 set_method_res_type(mtd, n_res++, tp_s);
178 else if (omode == env->params->high_unsigned) {
179 set_method_res_type(mtd, n_res++, tp_u);
180 set_method_res_type(mtd, n_res++, tp_u);
183 ir_type *tp = get_primitive_type(omode);
184 set_method_res_type(mtd, n_res++, tp);
195 * Add an additional control flow input to a block.
196 * Patch all Phi nodes. The new Phi inputs are copied from
197 * old input number nr.
199 static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
201 int i, arity = get_irn_arity(block);
206 NEW_ARR_A(ir_node *, in, arity + 1);
207 for (i = 0; i < arity; ++i)
208 in[i] = get_irn_n(block, i);
211 set_irn_in(block, i + 1, in);
213 for (phi = get_irn_link(block); phi; phi = get_irn_link(phi)) {
214 for (i = 0; i < arity; ++i)
215 in[i] = get_irn_n(phi, i);
217 set_irn_in(phi, i + 1, in);
222 * Add an additional control flow input to a block.
223 * Patch all Phi nodes. The new Phi inputs are copied from
224 * old input from cf tmpl.
226 static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
228 int i, arity = get_irn_arity(block);
231 for (i = 0; i < arity; ++i) {
232 if (get_irn_n(block, i) == tmpl) {
238 add_block_cf_input_nr(block, nr, cf);
242 * Return the "operational" mode of a Firm node.
244 static ir_mode *get_irn_op_mode(ir_node *node)
246 switch (get_irn_opcode(node)) {
248 return get_Load_mode(node);
251 return get_irn_mode(get_Store_value(node));
254 return get_irn_mode(get_DivMod_left(node));
257 return get_irn_mode(get_Div_left(node));
260 return get_irn_mode(get_Mod_left(node));
263 return get_irn_mode(get_Cmp_left(node));
266 return get_irn_mode(node);
271 * walker, prepare the node links
273 static void prepare_links(ir_node *node, void *env)
275 lower_env_t *lenv = env;
276 ir_mode *mode = get_irn_op_mode(node);
280 if (mode == lenv->params->high_signed ||
281 mode == lenv->params->high_unsigned) {
282 /* ok, found a node that will be lowered */
283 link = obstack_alloc(&lenv->obst, sizeof(*link));
285 memset(link, 0, sizeof(*link));
287 lenv->entries[get_irn_idx(node)] = link;
288 lenv->flags |= MUST_BE_LOWERED;
290 else if (get_irn_op(node) == op_Conv) {
291 /* Conv nodes have two modes */
292 ir_node *pred = get_Conv_op(node);
293 mode = get_irn_mode(pred);
295 if (mode == lenv->params->high_signed ||
296 mode == lenv->params->high_unsigned) {
297 /* must lower this node either */
298 link = obstack_alloc(&lenv->obst, sizeof(*link));
300 memset(link, 0, sizeof(*link));
302 lenv->entries[get_irn_idx(node)] = link;
303 lenv->flags |= MUST_BE_LOWERED;
309 /* link all Proj nodes to its predecessor:
310 Note that Tuple Proj's and its Projs are linked either. */
311 ir_node *pred = get_Proj_pred(node);
313 set_irn_link(node, get_irn_link(pred));
314 set_irn_link(pred, node);
316 else if (is_Phi(node)) {
317 /* link all Phi nodes to its block */
318 ir_node *block = get_nodes_block(node);
320 set_irn_link(node, get_irn_link(block));
321 set_irn_link(block, node);
323 else if (is_Block(node)) {
324 /* fill the Proj -> Block map */
325 for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
326 ir_node *pred = get_Block_cfgpred(node, i);
329 pmap_insert(lenv->proj_2_block, pred, node);
335 * Translate a Constant: create two.
337 static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env) {
338 tarval *tv, *tv_l, *tv_h;
340 dbg_info *dbg = get_irn_dbg_info(node);
341 ir_node *block = get_nodes_block(node);
344 tv = get_Const_tarval(node);
346 tv_l = tarval_convert_to(tv, mode);
347 low = new_rd_Const(dbg, current_ir_graph, block, mode, tv_l);
349 tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
350 high = new_rd_Const(dbg, current_ir_graph, block, mode, tv_h);
352 idx = get_irn_idx(node);
353 assert(idx < env->n_entries);
354 env->entries[idx]->low_word = low;
355 env->entries[idx]->high_word = high;
359 * Translate a Load: create two.
361 static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
362 ir_graph *irg = current_ir_graph;
363 ir_node *adr = get_Load_ptr(node);
364 ir_node *mem = get_Load_mem(node);
365 ir_node *low, *high, *proj;
367 ir_node *block = get_nodes_block(node);
370 if (env->params->little_endian) {
372 high = new_r_Add(irg, block, adr,
373 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
377 low = new_r_Add(irg, block, adr,
378 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
383 /* create two loads */
384 dbg = get_irn_dbg_info(node);
385 low = new_rd_Load(dbg, irg, block, mem, low, mode);
386 proj = new_r_Proj(irg, block, low, mode_M, pn_Load_M);
387 high = new_rd_Load(dbg, irg, block, proj, high, mode);
389 set_Load_volatility(low, get_Load_volatility(node));
390 set_Load_volatility(high, get_Load_volatility(node));
392 idx = get_irn_idx(node);
393 assert(idx < env->n_entries);
394 env->entries[idx]->low_word = low;
395 env->entries[idx]->high_word = high;
397 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
398 idx = get_irn_idx(proj);
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 assert(idx < env->n_entries);
411 env->entries[idx]->low_word = new_r_Proj(irg, block, low, mode, pn_Load_res);
412 env->entries[idx]->high_word = new_r_Proj(irg, block, high, mode, pn_Load_res);
415 assert(0 && "unexpected Proj number");
417 /* mark this proj: we have handled it already, otherwise we might fall into
419 mark_irn_visited(proj);
424 * Translate a Store: create two.
426 static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
428 ir_node *block, *adr, *mem;
429 ir_node *low, *high, *irn, *proj;
434 irn = get_Store_value(node);
435 entry = env->entries[get_irn_idx(irn)];
438 if (! entry->low_word) {
439 /* not ready yet, wait */
440 pdeq_putr(env->waitq, node);
444 irg = current_ir_graph;
445 adr = get_Store_ptr(node);
446 mem = get_Store_mem(node);
447 block = get_nodes_block(node);
449 if (env->params->little_endian) {
451 high = new_r_Add(irg, block, adr,
452 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
456 low = new_r_Add(irg, block, adr,
457 new_r_Const(irg, block, get_tarval_mode(env->tv_mode_bytes), env->tv_mode_bytes),
462 /* create two Stores */
463 dbg = get_irn_dbg_info(node);
464 low = new_rd_Store(dbg, irg, block, mem, low, entry->low_word);
465 proj = new_r_Proj(irg, block, low, mode_M, pn_Store_M);
466 high = new_rd_Store(dbg, irg, block, proj, high, entry->high_word);
468 set_Store_volatility(low, get_Store_volatility(node));
469 set_Store_volatility(high, get_Store_volatility(node));
471 idx = get_irn_idx(node);
472 assert(idx < env->n_entries);
473 env->entries[idx]->low_word = low;
474 env->entries[idx]->high_word = high;
476 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
477 idx = get_irn_idx(proj);
479 switch (get_Proj_proj(proj)) {
480 case pn_Store_M: /* Memory result. */
481 /* put it to the second one */
482 set_Proj_pred(proj, high);
484 case pn_Store_X_except: /* Execution result if exception occurred. */
485 /* put it to the first one */
486 set_Proj_pred(proj, low);
489 assert(0 && "unexpected Proj number");
491 /* mark this proj: we have handled it already, otherwise we might fall into
493 mark_irn_visited(proj);
498 * Return a node containing the address of the intrinsic emulation function.
500 * @param method the method type of the emulation function
501 * @param op the emulated ir_op
502 * @param imode the input mode of the emulated opcode
503 * @param omode the output mode of the emulated opcode
504 * @param block where the new mode is created
505 * @param env the lower environment
507 static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
508 ir_mode *imode, ir_mode *omode,
509 ir_node *block, lower_env_t *env) {
512 op_mode_entry_t key, *entry;
519 entry = set_insert(intrinsic_fkt, &key, sizeof(key),
520 HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
522 /* create a new one */
523 ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
525 assert(ent && "Intrinsic creator must return an entity");
532 return new_r_SymConst(current_ir_graph, block, sym, symconst_addr_ent);
538 * Create an intrinsic Call.
540 static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env) {
541 ir_node *block, *irn, *call, *proj;
549 irn = get_Div_left(node);
550 entry = env->entries[get_irn_idx(irn)];
553 if (! entry->low_word) {
554 /* not ready yet, wait */
555 pdeq_putr(env->waitq, node);
559 in[0] = entry->low_word;
560 in[1] = entry->high_word;
562 irn = get_Div_right(node);
563 entry = env->entries[get_irn_idx(irn)];
566 if (! entry->low_word) {
567 /* not ready yet, wait */
568 pdeq_putr(env->waitq, node);
572 in[2] = entry->low_word;
573 in[3] = entry->high_word;
575 dbg = get_irn_dbg_info(node);
576 block = get_nodes_block(node);
578 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
579 opmode = get_irn_op_mode(node);
580 irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, block, env);
581 call = new_rd_Call(dbg, current_ir_graph, block, get_Div_mem(node),
583 set_irn_pinned(call, get_irn_pinned(node));
584 irn = new_r_Proj(current_ir_graph, block, call, mode_T, pn_Call_T_result);
586 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
587 switch (get_Proj_proj(proj)) {
588 case pn_Div_M: /* Memory result. */
589 /* reroute to the call */
590 set_Proj_pred(proj, call);
591 set_Proj_proj(proj, pn_Call_M_except);
593 case pn_Div_X_except: /* Execution result if exception occurred. */
594 /* reroute to the call */
595 set_Proj_pred(proj, call);
596 set_Proj_proj(proj, pn_Call_X_except);
598 case pn_Div_res: /* Result of computation. */
599 idx = get_irn_idx(proj);
600 assert(idx < env->n_entries);
601 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
602 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
605 assert(0 && "unexpected Proj number");
607 /* mark this proj: we have handled it already, otherwise we might fall into
609 mark_irn_visited(proj);
616 * Create an intrinsic Call.
618 static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env) {
619 ir_node *block, *proj, *irn, *call;
627 irn = get_Mod_left(node);
628 entry = env->entries[get_irn_idx(irn)];
631 if (! entry->low_word) {
632 /* not ready yet, wait */
633 pdeq_putr(env->waitq, node);
637 in[0] = entry->low_word;
638 in[1] = entry->high_word;
640 irn = get_Mod_right(node);
641 entry = env->entries[get_irn_idx(irn)];
644 if (! entry->low_word) {
645 /* not ready yet, wait */
646 pdeq_putr(env->waitq, node);
650 in[2] = entry->low_word;
651 in[3] = entry->high_word;
653 dbg = get_irn_dbg_info(node);
654 block = get_nodes_block(node);
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, current_ir_graph, block, get_Mod_mem(node),
661 set_irn_pinned(call, get_irn_pinned(node));
662 irn = new_r_Proj(current_ir_graph, 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(current_ir_graph, block, irn, mode, 0);
680 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, 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, *resDiv, *resMod;
706 /* check if both results are needed */
707 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
708 switch (get_Proj_proj(proj)) {
709 case pn_DivMod_res_div: flags |= 1; break;
710 case pn_DivMod_res_mod: flags |= 2; break;
715 irn = get_DivMod_left(node);
716 entry = env->entries[get_irn_idx(irn)];
719 if (! entry->low_word) {
720 /* not ready yet, wait */
721 pdeq_putr(env->waitq, node);
725 in[0] = entry->low_word;
726 in[1] = entry->high_word;
728 irn = get_DivMod_right(node);
729 entry = env->entries[get_irn_idx(irn)];
732 if (! entry->low_word) {
733 /* not ready yet, wait */
734 pdeq_putr(env->waitq, node);
738 in[2] = entry->low_word;
739 in[3] = entry->high_word;
741 dbg = get_irn_dbg_info(node);
742 block = get_nodes_block(node);
744 mem = get_DivMod_mem(node);
746 callDiv = callMod = NULL;
747 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
749 opmode = get_irn_op_mode(node);
750 irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, block, env);
751 callDiv = new_rd_Call(dbg, current_ir_graph, block, mem,
753 set_irn_pinned(callDiv, get_irn_pinned(node));
754 resDiv = new_r_Proj(current_ir_graph, block, callDiv, mode_T, pn_Call_T_result);
758 mem = new_r_Proj(current_ir_graph, block, callDiv, mode_M, pn_Call_M);
759 opmode = get_irn_op_mode(node);
760 irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, block, env);
761 callMod = new_rd_Call(dbg, current_ir_graph, block, mem,
763 set_irn_pinned(callMod, get_irn_pinned(node));
764 resMod = new_r_Proj(current_ir_graph, block, callMod, mode_T, pn_Call_T_result);
767 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
768 switch (get_Proj_proj(proj)) {
769 case pn_DivMod_M: /* Memory result. */
770 /* reroute to the first call */
771 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
772 set_Proj_proj(proj, pn_Call_M_except);
774 case pn_DivMod_X_except: /* Execution result if exception occurred. */
775 /* reroute to the first call */
776 set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
777 set_Proj_proj(proj, pn_Call_X_except);
779 case pn_DivMod_res_div: /* Result of Div. */
780 idx = get_irn_idx(proj);
781 assert(idx < env->n_entries);
782 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, resDiv, mode, 0);
783 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, resDiv, mode, 1);
785 case pn_DivMod_res_mod: /* Result of Mod. */
786 idx = get_irn_idx(proj);
787 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, resMod, mode, 0);
788 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, resMod, mode, 1);
791 assert(0 && "unexpected Proj number");
793 /* mark this proj: we have handled it already, otherwise we might fall into
795 mark_irn_visited(proj);
802 * Create an intrinsic Call.
804 static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env) {
805 ir_node *block, *irn;
812 irn = get_binop_left(node);
813 entry = env->entries[get_irn_idx(irn)];
816 if (! entry->low_word) {
817 /* not ready yet, wait */
818 pdeq_putr(env->waitq, node);
822 in[0] = entry->low_word;
823 in[1] = entry->high_word;
825 irn = get_binop_right(node);
826 entry = env->entries[get_irn_idx(irn)];
829 if (! entry->low_word) {
830 /* not ready yet, wait */
831 pdeq_putr(env->waitq, node);
835 in[2] = entry->low_word;
836 in[3] = entry->high_word;
838 dbg = get_irn_dbg_info(node);
839 block = get_nodes_block(node);
841 mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
842 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
843 irn = new_rd_Call(dbg, current_ir_graph, block, get_irg_no_mem(current_ir_graph),
845 set_irn_pinned(irn, get_irn_pinned(node));
846 irn = new_r_Proj(current_ir_graph, block, irn, mode_T, pn_Call_T_result);
848 idx = get_irn_idx(node);
849 assert(idx < env->n_entries);
850 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
851 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
857 * Create an intrinsic Call.
859 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
860 ir_node *block, *irn;
867 irn = get_unop_op(node);
868 entry = env->entries[get_irn_idx(irn)];
871 if (! entry->low_word) {
872 /* not ready yet, wait */
873 pdeq_putr(env->waitq, node);
877 in[0] = entry->low_word;
878 in[1] = entry->high_word;
880 dbg = get_irn_dbg_info(node);
881 block = get_nodes_block(node);
883 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
884 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
885 irn = new_rd_Call(dbg, current_ir_graph, block, get_irg_no_mem(current_ir_graph),
887 set_irn_pinned(irn, get_irn_pinned(node));
888 irn = new_r_Proj(current_ir_graph, block, irn, mode_T, pn_Call_T_result);
890 idx = get_irn_idx(node);
891 assert(idx < env->n_entries);
892 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
893 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
897 * Translate a logical Binop.
899 * Create two logical Binops.
901 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
902 ir_node *(*constr_rd)(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
903 ir_node *block, *irn;
904 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
909 irn = get_binop_left(node);
910 entry = env->entries[get_irn_idx(irn)];
913 if (! entry->low_word) {
914 /* not ready yet, wait */
915 pdeq_putr(env->waitq, node);
919 lop_l = entry->low_word;
920 lop_h = entry->high_word;
922 irn = get_binop_right(node);
923 entry = env->entries[get_irn_idx(irn)];
926 if (! entry->low_word) {
927 /* not ready yet, wait */
928 pdeq_putr(env->waitq, node);
932 rop_l = entry->low_word;
933 rop_h = entry->high_word;
935 dbg = get_irn_dbg_info(node);
936 block = get_nodes_block(node);
938 idx = get_irn_idx(node);
939 assert(idx < env->n_entries);
940 env->entries[idx]->low_word = constr_rd(dbg, current_ir_graph, block, lop_l, rop_l, mode);
941 env->entries[idx]->high_word = constr_rd(dbg, current_ir_graph, block, lop_h, rop_h, mode);
944 /** create a logical operation tranformation */
945 #define lower_logical(op) \
946 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
947 lower_Binop_logical(node, mode, env, new_rd_##op); \
957 * Create two logical Nots.
959 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env) {
960 ir_node *block, *irn;
961 ir_node *op_l, *op_h;
966 irn = get_Not_op(node);
967 entry = env->entries[get_irn_idx(irn)];
970 if (! entry->low_word) {
971 /* not ready yet, wait */
972 pdeq_putr(env->waitq, node);
976 op_l = entry->low_word;
977 op_h = entry->high_word;
979 dbg = get_irn_dbg_info(node);
980 block = get_nodes_block(node);
982 idx = get_irn_idx(node);
983 assert(idx < env->n_entries);
984 env->entries[idx]->low_word = new_rd_Not(dbg, current_ir_graph, block, op_l, mode);
985 env->entries[idx]->high_word = new_rd_Not(dbg, current_ir_graph, block, op_h, mode);
991 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env) {
992 ir_node *cmp, *left, *right, *block;
993 ir_node *sel = get_Cond_selector(node);
994 ir_mode *m = get_irn_mode(sel);
998 node_entry_t *lentry, *rentry;
999 ir_node *proj, *projT = NULL, *projF = NULL;
1000 ir_node *new_bl, *cmpH, *cmpL, *irn;
1001 ir_node *projHF, *projHT;
1007 cmp = get_Proj_pred(sel);
1008 left = get_Cmp_left(cmp);
1009 idx = get_irn_idx(left);
1010 lentry = env->entries[idx];
1016 right = get_Cmp_right(cmp);
1017 idx = get_irn_idx(right);
1018 rentry = env->entries[idx];
1021 if (! lentry->low_word || !rentry->low_word) {
1023 pdeq_putr(env->waitq, node);
1027 /* all right, build the code */
1028 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1029 long proj_nr = get_Proj_proj(proj);
1031 if (proj_nr == pn_Cond_true) {
1032 assert(projT == NULL && "more than one Proj(true)");
1036 assert(proj_nr == pn_Cond_false);
1037 assert(projF == NULL && "more than one Proj(false)");
1040 mark_irn_visited(proj);
1042 assert(projT && projF);
1044 /* create a new high compare */
1045 block = get_nodes_block(cmp);
1046 dbg = get_irn_dbg_info(cmp);
1047 irg = current_ir_graph;
1049 cmpH = new_rd_Cmp(dbg, irg, block, lentry->high_word, rentry->high_word);
1051 pnc = get_Proj_proj(sel);
1052 if (pnc == pn_Cmp_Eq) {
1053 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1054 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1057 dst_blk = entry->value;
1059 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Eq);
1060 dbg = get_irn_dbg_info(node);
1061 irn = new_rd_Cond(dbg, irg, block, irn);
1063 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1064 mark_irn_visited(projHF);
1065 exchange(projF, projHF);
1067 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1068 mark_irn_visited(projHT);
1070 new_bl = new_r_Block(irg, 1, &projHT);
1072 dbg = get_irn_dbg_info(cmp);
1073 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1074 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Eq);
1075 dbg = get_irn_dbg_info(node);
1076 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1078 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1079 mark_irn_visited(proj);
1080 add_block_cf_input(dst_blk, projHF, proj);
1082 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1083 mark_irn_visited(proj);
1084 exchange(projT, proj);
1086 else if (pnc == pn_Cmp_Lg) {
1087 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1088 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1091 dst_blk = entry->value;
1093 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Lg);
1094 dbg = get_irn_dbg_info(node);
1095 irn = new_rd_Cond(dbg, irg, block, irn);
1097 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1098 mark_irn_visited(projHT);
1099 exchange(projT, projHT);
1101 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1102 mark_irn_visited(projHF);
1104 new_bl = new_r_Block(irg, 1, &projHF);
1106 dbg = get_irn_dbg_info(cmp);
1107 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1108 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Lg);
1109 dbg = get_irn_dbg_info(node);
1110 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1112 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1113 mark_irn_visited(proj);
1114 add_block_cf_input(dst_blk, projHT, proj);
1116 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1117 mark_irn_visited(proj);
1118 exchange(projF, proj);
1121 /* a rel b <==> a_h rel b_h || (a_h == b_h && a_l rel b_l) */
1122 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1125 entry = pmap_find(env->proj_2_block, projT);
1127 dstT = entry->value;
1129 entry = pmap_find(env->proj_2_block, projF);
1131 dstF = entry->value;
1133 irn = new_r_Proj(irg, block, cmpH, mode_b, pnc);
1134 dbg = get_irn_dbg_info(node);
1135 irn = new_rd_Cond(dbg, irg, block, irn);
1137 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1138 mark_irn_visited(projHT);
1139 exchange(projT, projHT);
1142 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1143 mark_irn_visited(projHF);
1145 newbl_eq = new_r_Block(irg, 1, &projHF);
1147 irn = new_r_Proj(irg, newbl_eq, cmpH, mode_b, pn_Cmp_Eq);
1148 irn = new_rd_Cond(dbg, irg, newbl_eq, irn);
1150 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_false);
1151 mark_irn_visited(proj);
1152 exchange(projF, proj);
1155 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_true);
1156 mark_irn_visited(proj);
1158 newbl_l = new_r_Block(irg, 1, &proj);
1160 dbg = get_irn_dbg_info(cmp);
1161 cmpL = new_rd_Cmp(dbg, irg, newbl_l, lentry->low_word, rentry->low_word);
1162 irn = new_r_Proj(irg, newbl_l, cmpL, mode_b, pnc);
1163 dbg = get_irn_dbg_info(node);
1164 irn = new_rd_Cond(dbg, irg, newbl_l, irn);
1166 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_true);
1167 mark_irn_visited(proj);
1168 add_block_cf_input(dstT, projT, proj);
1170 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_false);
1171 mark_irn_visited(proj);
1172 add_block_cf_input(dstF, projF, proj);
1175 /* we have changed the control flow */
1176 env->flags |= CF_CHANGED;
1179 idx = get_irn_idx(sel);
1181 if (env->entries[idx]) {
1183 Bad, a jump-table with double-word index.
1184 This should not happen, but if it does we handle
1185 it like a Conv were between (in other words, ignore
1189 if (! env->entries[idx]->low_word) {
1190 /* not ready yet, wait */
1191 pdeq_putr(env->waitq, node);
1194 set_Cond_selector(node, env->entries[idx]->low_word);
1200 * Translate a Conv to higher_signed
1202 static void lower_Conv_to_Ls(ir_node *node, lower_env_t *env) {
1203 ir_node *op = get_Conv_op(node);
1204 ir_mode *imode = get_irn_mode(op);
1205 ir_mode *dst_mode = env->params->low_signed;
1206 int idx = get_irn_idx(node);
1207 ir_graph *irg = current_ir_graph;
1208 ir_node *block = get_nodes_block(node);
1209 dbg_info *dbg = get_irn_dbg_info(node);
1211 assert(idx < env->n_entries);
1213 if (mode_is_int(imode) || mode_is_reference(imode)) {
1214 /* simple case: create a high word */
1215 if (imode != dst_mode)
1216 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1218 env->entries[idx]->low_word = op;
1219 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op,
1220 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode) - 1), dst_mode);
1223 ir_node *irn, *call;
1224 ir_mode *omode = env->params->high_signed;
1225 ir_type *mtp = get_conv_type(imode, omode, env);
1227 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1228 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1229 set_irn_pinned(call, get_irn_pinned(node));
1230 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1232 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1233 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1238 * Translate a Conv to higher_unsigned
1240 static void lower_Conv_to_Lu(ir_node *node, lower_env_t *env) {
1241 ir_node *op = get_Conv_op(node);
1242 ir_mode *imode = get_irn_mode(op);
1243 ir_mode *dst_mode = env->params->low_unsigned;
1244 int idx = get_irn_idx(node);
1245 ir_graph *irg = current_ir_graph;
1246 ir_node *block = get_nodes_block(node);
1247 dbg_info *dbg = get_irn_dbg_info(node);
1249 assert(idx < env->n_entries);
1251 if (mode_is_int(imode) || mode_is_reference(imode)) {
1252 /* simple case: create a high word */
1253 if (imode != dst_mode)
1254 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1256 env->entries[idx]->low_word = op;
1257 env->entries[idx]->high_word = new_Const(dst_mode, get_mode_null(dst_mode));
1260 ir_node *irn, *call;
1261 ir_mode *omode = env->params->high_unsigned;
1262 ir_type *mtp = get_conv_type(imode, omode, env);
1264 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1265 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1266 set_irn_pinned(call, get_irn_pinned(node));
1267 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1269 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1270 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1275 * Translate a Conv from higher_signed
1277 static void lower_Conv_from_Ls(ir_node *node, lower_env_t *env) {
1278 ir_node *op = get_Conv_op(node);
1279 ir_mode *omode = get_irn_mode(node);
1280 ir_node *block = get_nodes_block(node);
1281 dbg_info *dbg = get_irn_dbg_info(node);
1282 int idx = get_irn_idx(op);
1283 ir_graph *irg = current_ir_graph;
1285 assert(idx < env->n_entries);
1287 if (mode_is_int(omode) || mode_is_reference(omode)) {
1288 op = env->entries[idx]->low_word;
1290 /* simple case: create a high word */
1291 if (omode != env->params->low_signed)
1292 op = new_rd_Conv(dbg, irg, block, op, omode);
1294 set_Conv_op(node, op);
1297 ir_node *irn, *call, *in[2];
1298 ir_mode *imode = env->params->high_signed;
1299 ir_type *mtp = get_conv_type(imode, omode, env);
1301 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1302 in[0] = env->entries[idx]->low_word;
1303 in[1] = env->entries[idx]->high_word;
1305 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1306 set_irn_pinned(call, get_irn_pinned(node));
1307 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1309 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1314 * Translate a Conv from higher_unsigned
1316 static void lower_Conv_from_Lu(ir_node *node, lower_env_t *env) {
1317 ir_node *op = get_Conv_op(node);
1318 ir_mode *omode = get_irn_mode(node);
1319 ir_node *block = get_nodes_block(node);
1320 dbg_info *dbg = get_irn_dbg_info(node);
1321 int idx = get_irn_idx(op);
1322 ir_graph *irg = current_ir_graph;
1324 assert(idx < env->n_entries);
1326 if (mode_is_int(omode) || mode_is_reference(omode)) {
1327 op = env->entries[idx]->low_word;
1329 /* simple case: create a high word */
1330 if (omode != env->params->low_unsigned)
1331 op = new_rd_Conv(dbg, irg, block, op, omode);
1333 set_Conv_op(node, op);
1336 ir_node *irn, *call, *in[2];
1337 ir_mode *imode = env->params->high_unsigned;
1338 ir_type *mtp = get_conv_type(imode, omode, env);
1340 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1341 in[0] = env->entries[idx]->low_word;
1342 in[1] = env->entries[idx]->high_word;
1344 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1345 set_irn_pinned(call, get_irn_pinned(node));
1346 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1348 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1355 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env) {
1356 mode = get_irn_mode(node);
1358 if (mode == env->params->high_signed)
1359 lower_Conv_to_Ls(node, env);
1360 else if (mode == env->params->high_unsigned)
1361 lower_Conv_to_Lu(node, env);
1363 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1365 if (mode == env->params->high_signed)
1366 lower_Conv_from_Ls(node, env);
1368 assert(mode == env->params->high_unsigned);
1369 lower_Conv_from_Lu(node, env);
1375 * Lower the method type.
1377 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env) {
1382 if (is_lowered_type(mtp))
1385 entry = pmap_find(lowered_type, mtp);
1387 int i, n, r, n_param, n_res;
1389 /* count new number of params */
1390 n_param = n = get_method_n_params(mtp);
1391 for (i = n_param - 1; i >= 0; --i) {
1392 ir_type *tp = get_method_param_type(mtp, i);
1394 if (is_Primitive_type(tp)) {
1395 ir_mode *mode = get_type_mode(tp);
1397 if (mode == env->params->high_signed ||
1398 mode == env->params->high_unsigned)
1403 /* count new number of results */
1404 n_res = r = get_method_n_ress(mtp);
1405 for (i = n_res - 1; i >= 0; --i) {
1406 ir_type *tp = get_method_res_type(mtp, i);
1408 if (is_Primitive_type(tp)) {
1409 ir_mode *mode = get_type_mode(tp);
1411 if (mode == env->params->high_signed ||
1412 mode == env->params->high_unsigned)
1417 id = mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
1418 res = new_type_method(id, n_param, n_res);
1420 /* set param types and result types */
1421 for (i = n_param = 0; i < n; ++i) {
1422 ir_type *tp = get_method_param_type(mtp, i);
1424 if (is_Primitive_type(tp)) {
1425 ir_mode *mode = get_type_mode(tp);
1427 if (mode == env->params->high_signed) {
1428 set_method_param_type(res, n_param++, tp_s);
1429 set_method_param_type(res, n_param++, tp_s);
1431 else if (mode == env->params->high_unsigned) {
1432 set_method_param_type(res, n_param++, tp_u);
1433 set_method_param_type(res, n_param++, tp_u);
1436 set_method_param_type(res, n_param++, tp);
1439 set_method_param_type(res, n_param++, tp);
1441 for (i = n_res = 0; i < r; ++i) {
1442 ir_type *tp = get_method_res_type(mtp, i);
1444 if (is_Primitive_type(tp)) {
1445 ir_mode *mode = get_type_mode(tp);
1447 if (mode == env->params->high_signed) {
1448 set_method_res_type(res, n_res++, tp_s);
1449 set_method_res_type(res, n_res++, tp_s);
1451 else if (mode == env->params->high_unsigned) {
1452 set_method_res_type(res, n_res++, tp_u);
1453 set_method_res_type(res, n_res++, tp_u);
1456 set_method_res_type(res, n_res++, tp);
1459 set_method_res_type(res, n_res++, tp);
1461 set_lowered_type(mtp, res);
1462 pmap_insert(lowered_type, mtp, res);
1470 * Translate a Return.
1472 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env) {
1473 ir_graph *irg = current_ir_graph;
1474 entity *ent = get_irg_entity(irg);
1475 ir_type *mtp = get_entity_type(ent);
1480 /* check if this return must be lowered */
1481 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1482 ir_node *pred = get_Return_res(node, i);
1483 ir_mode *mode = get_irn_op_mode(pred);
1485 if (mode == env->params->high_signed ||
1486 mode == env->params->high_unsigned) {
1487 idx = get_irn_idx(pred);
1488 if (! env->entries[idx]->low_word) {
1489 /* not ready yet, wait */
1490 pdeq_putr(env->waitq, node);
1499 ent = get_irg_entity(irg);
1500 mtp = get_entity_type(ent);
1502 mtp = lower_mtp(mtp, env);
1503 set_entity_type(ent, mtp);
1505 /* create a new in array */
1506 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1507 in[0] = get_Return_mem(node);
1509 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1510 ir_node *pred = get_Return_res(node, i);
1512 idx = get_irn_idx(pred);
1513 assert(idx < env->n_entries);
1515 if (env->entries[idx]) {
1516 in[++j] = env->entries[idx]->low_word;
1517 in[++j] = env->entries[idx]->high_word;
1523 set_irn_in(node, j+1, in);
1527 * Translate the parameters.
1529 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env) {
1530 ir_graph *irg = current_ir_graph;
1531 entity *ent = get_irg_entity(irg);
1532 ir_type *tp = get_entity_type(ent);
1535 int i, j, n_params, rem;
1536 ir_node *proj, *args;
1538 if (is_lowered_type(tp))
1539 mtp = get_associated_type(tp);
1543 assert(! is_lowered_type(mtp));
1545 n_params = get_method_n_params(mtp);
1549 NEW_ARR_A(long, new_projs, n_params);
1551 /* first check if we have parameters that must be fixed */
1552 for (i = j = 0; i < n_params; ++i, ++j) {
1553 ir_type *tp = get_method_param_type(mtp, i);
1556 if (is_Primitive_type(tp)) {
1557 ir_mode *mode = get_type_mode(tp);
1559 if (mode == env->params->high_signed ||
1560 mode == env->params->high_unsigned)
1567 mtp = lower_mtp(mtp, env);
1568 set_entity_type(ent, mtp);
1570 /* switch off optimization for new Proj nodes or they might be CSE'ed
1571 with not patched one's */
1572 rem = get_optimize();
1575 /* ok, fix all Proj's and create new ones */
1576 args = get_irg_args(irg);
1577 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1578 ir_node *pred = get_Proj_pred(proj);
1584 /* do not visit this node again */
1585 mark_irn_visited(proj);
1590 proj_nr = get_Proj_proj(proj);
1591 set_Proj_proj(proj, new_projs[proj_nr]);
1593 idx = get_irn_idx(proj);
1594 if (env->entries[idx]) {
1595 mode = get_irn_mode(proj);
1597 if (mode == env->params->high_signed)
1598 mode = env->params->low_signed;
1600 mode = env->params->high_signed;
1602 dbg = get_irn_dbg_info(proj);
1603 env->entries[idx]->low_word =
1604 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr]);
1605 env->entries[idx]->high_word =
1606 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr] + 1);
1615 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env) {
1616 ir_graph *irg = current_ir_graph;
1617 ir_type *tp = get_Call_type(node);
1619 ir_node **in, *proj, *results;
1620 int n_params, n_res, need_lower = 0;
1622 long *res_numbers = NULL;
1624 if (is_lowered_type(tp))
1625 call_tp = get_associated_type(tp);
1629 assert(! is_lowered_type(call_tp));
1631 n_params = get_method_n_params(call_tp);
1632 for (i = 0; i < n_params; ++i) {
1633 ir_type *tp = get_method_param_type(call_tp, i);
1635 if (is_Primitive_type(tp)) {
1636 ir_mode *mode = get_type_mode(tp);
1638 if (mode == env->params->high_signed ||
1639 mode == env->params->high_unsigned) {
1645 n_res = get_method_n_ress(call_tp);
1647 NEW_ARR_A(long, res_numbers, n_res);
1649 for (i = j = 0; i < n_res; ++i, ++j) {
1650 ir_type *tp = get_method_res_type(call_tp, i);
1653 if (is_Primitive_type(tp)) {
1654 ir_mode *mode = get_type_mode(tp);
1656 if (mode == env->params->high_signed ||
1657 mode == env->params->high_unsigned) {
1668 /* let's lower it */
1669 call_tp = lower_mtp(call_tp, env);
1670 set_Call_type(node, call_tp);
1672 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1674 in[0] = get_Call_mem(node);
1675 in[1] = get_Call_ptr(node);
1677 for (j = 2, i = 0; i < n_params; ++i) {
1678 ir_node *pred = get_Call_param(node, i);
1679 int idx = get_irn_idx(pred);
1681 if (env->entries[idx]) {
1682 if (! env->entries[idx]->low_word) {
1683 /* not ready yet, wait */
1684 pdeq_putr(env->waitq, node);
1687 in[j++] = env->entries[idx]->low_word;
1688 in[j++] = env->entries[idx]->high_word;
1694 set_irn_in(node, j, in);
1696 /* fix the results */
1698 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1699 long proj_nr = get_Proj_proj(proj);
1701 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1702 /* found the result proj */
1708 if (results) { /* there are results */
1709 int rem = get_optimize();
1711 /* switch off optimization for new Proj nodes or they might be CSE'ed
1712 with not patched one's */
1714 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1715 if (get_Proj_pred(proj) == results) {
1716 long proj_nr = get_Proj_proj(proj);
1719 /* found a result */
1720 set_Proj_proj(proj, res_numbers[proj_nr]);
1721 idx = get_irn_idx(proj);
1722 if (env->entries[idx]) {
1723 ir_mode *mode = get_irn_mode(proj);
1726 if (mode == env->params->high_signed)
1727 mode = env->params->low_signed;
1729 mode = env->params->low_unsigned;
1731 dbg = get_irn_dbg_info(proj);
1732 env->entries[idx]->low_word =
1733 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr]);
1734 env->entries[idx]->high_word =
1735 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr] + 1);
1737 mark_irn_visited(proj);
1745 * Translate an Unknown into two.
1747 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env) {
1748 int idx = get_irn_idx(node);
1750 env->entries[idx]->low_word =
1751 env->entries[idx]->high_word = new_r_Unknown(current_ir_graph, mode);
1757 * First step: just create two templates
1759 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env) {
1760 ir_node *block, *unk;
1761 ir_node **inl, **inh;
1763 int idx, i, arity = get_Phi_n_preds(phi);
1766 idx = get_irn_idx(phi);
1767 if (env->entries[idx]->low_word) {
1768 /* Phi nodes already build, check for inputs */
1769 ir_node *phil = env->entries[idx]->low_word;
1770 ir_node *phih = env->entries[idx]->high_word;
1772 for (i = 0; i < arity; ++i) {
1773 ir_node *pred = get_Phi_pred(phi, i);
1774 int idx = get_irn_idx(pred);
1776 if (env->entries[idx]->low_word) {
1777 set_Phi_pred(phil, i, env->entries[idx]->low_word);
1778 set_Phi_pred(phil, i, env->entries[idx]->high_word);
1781 /* still not ready */
1782 pdeq_putr(env->waitq, phi);
1788 /* first create a new in array */
1789 NEW_ARR_A(ir_node *, inl, arity);
1790 NEW_ARR_A(ir_node *, inh, arity);
1791 unk = new_r_Unknown(current_ir_graph, mode);
1793 for (i = 0; i < arity; ++i) {
1794 ir_node *pred = get_Phi_pred(phi, i);
1795 int idx = get_irn_idx(pred);
1797 if (env->entries[idx]->low_word) {
1798 inl[i] = env->entries[idx]->low_word;
1799 inh[i] = env->entries[idx]->high_word;
1808 dbg = get_irn_dbg_info(phi);
1809 block = get_nodes_block(phi);
1811 idx = get_irn_idx(phi);
1812 assert(idx < env->n_entries);
1813 env->entries[idx]->low_word = new_rd_Phi(dbg, current_ir_graph, block, arity, inl, mode);
1814 env->entries[idx]->high_word = new_rd_Phi(dbg, current_ir_graph, block, arity, inh, mode);
1817 /* not yet finished */
1818 pdeq_putr(env->waitq, phi);
1823 * check for opcodes that must always be lowered.
1825 static int always_lower(opcode code) {
1837 /** The type of a lower function. */
1838 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
1843 static void lower_ops(ir_node *node, void *env)
1845 lower_env_t *lenv = env;
1846 node_entry_t *entry;
1847 int idx = get_irn_idx(node);
1849 entry = lenv->entries[idx];
1850 if (entry || always_lower(get_irn_opcode(node))) {
1851 ir_op *op = get_irn_op(node);
1852 lower_func func = (lower_func)op->ops.generic;
1855 ir_mode *mode = get_irn_op_mode(node);
1857 if (mode == lenv->params->high_signed)
1858 mode = lenv->params->low_signed;
1860 mode = lenv->params->low_unsigned;
1862 DB((dbg, LEVEL_1, " %+F\n", node));
1863 func(node, mode, lenv);
1868 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
1871 * Compare two op_mode_entry_t's.
1873 static int cmp_op_mode(const void *elt, const void *key, size_t size) {
1874 const op_mode_entry_t *e1 = elt;
1875 const op_mode_entry_t *e2 = key;
1877 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
1881 * Compare two conv_tp_entry_t's.
1883 static int cmp_conv_tp(const void *elt, const void *key, size_t size) {
1884 const conv_tp_entry_t *e1 = elt;
1885 const conv_tp_entry_t *e2 = key;
1887 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
1893 void lower_dw_ops(const lwrdw_param_t *param)
1901 if (! param->enable)
1904 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
1906 assert(2 * get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->high_signed));
1907 assert(2 * get_mode_size_bits(param->low_unsigned) == get_mode_size_bits(param->high_unsigned));
1908 assert(get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->low_unsigned));
1911 prim_types = pmap_create();
1912 if (! intrinsic_fkt)
1913 intrinsic_fkt = new_set(cmp_op_mode, iro_MaxOpcode);
1915 conv_types = new_set(cmp_conv_tp, 16);
1917 lowered_type = pmap_create();
1920 tp_u = get_primitive_type(param->low_unsigned);
1922 tp_s = get_primitive_type(param->low_signed);
1926 binop_tp_u = new_type_method(IDENT("binop_u_intrinsic"), 4, 2);
1928 set_method_param_type(binop_tp_u, 0, tp_u);
1929 set_method_param_type(binop_tp_u, 1, tp_u);
1930 set_method_param_type(binop_tp_u, 2, tp_u);
1931 set_method_param_type(binop_tp_u, 3, tp_u);
1932 set_method_res_type(binop_tp_u, 0, tp_u);
1933 set_method_res_type(binop_tp_u, 1, tp_u);
1936 binop_tp_s = new_type_method(IDENT("binop_s_intrinsic"), 4, 2);
1937 set_method_param_type(binop_tp_s, 0, tp_s);
1938 set_method_param_type(binop_tp_s, 1, tp_s);
1939 set_method_param_type(binop_tp_s, 2, tp_s);
1940 set_method_param_type(binop_tp_s, 3, tp_s);
1941 set_method_res_type(binop_tp_s, 0, tp_s);
1942 set_method_res_type(binop_tp_s, 1, tp_s);
1945 unop_tp_u = new_type_method(IDENT("unop_u_intrinsic"), 2, 2);
1946 set_method_param_type(unop_tp_u, 0, tp_u);
1947 set_method_param_type(unop_tp_u, 1, tp_u);
1948 set_method_res_type(unop_tp_u, 0, tp_u);
1949 set_method_res_type(unop_tp_u, 1, tp_u);
1952 unop_tp_s = new_type_method(IDENT("unop_s_intrinsic"), 2, 2);
1953 set_method_param_type(unop_tp_s, 0, tp_s);
1954 set_method_param_type(unop_tp_s, 1, tp_s);
1955 set_method_res_type(unop_tp_s, 0, tp_s);
1956 set_method_res_type(unop_tp_s, 1, tp_s);
1959 lenv.tv_mode_bytes = new_tarval_from_long(get_mode_size_bytes(param->low_unsigned), mode_Iu);
1960 lenv.tv_mode_bits = new_tarval_from_long(get_mode_size_bits(param->low_unsigned), mode_Iu);
1961 lenv.waitq = new_pdeq();
1962 lenv.params = param;
1964 /* first clear the generic function pointer for all ops */
1965 clear_irp_opcodes_generic_func();
1967 #define LOWER2(op, fkt) op_##op->ops.generic = (op_func)fkt
1968 #define LOWER(op) LOWER2(op, lower_##op)
1969 #define LOWER_BIN(op) LOWER2(op, lower_Binop)
1970 #define LOWER_UN(op) LOWER2(op, lower_Unop)
2006 /* transform all graphs */
2007 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2008 ir_graph *irg = get_irp_irg(i);
2011 obstack_init(&lenv.obst);
2013 n_idx = get_irg_last_idx(irg);
2014 lenv.n_entries = n_idx;
2015 lenv.entries = xmalloc(n_idx * sizeof(lenv.entries[0]));
2016 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2018 /* first step: link all nodes and allocate data */
2020 lenv.proj_2_block = pmap_create();
2021 irg_walk_graph(irg, firm_clear_link, prepare_links, &lenv);
2023 if (lenv.flags & MUST_BE_LOWERED) {
2024 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2026 /* must do some work */
2027 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2029 /* last step: all waiting nodes */
2030 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2031 while (! pdeq_empty(lenv.waitq)) {
2032 ir_node *node = pdeq_getl(lenv.waitq);
2034 lower_ops(node, &lenv);
2037 /* outs are invalid, we changed the graph */
2038 set_irg_outs_inconsistent(irg);
2040 if (lenv.flags & CF_CHANGED) {
2041 /* control flow changed, dominance info is invalid */
2042 set_irg_doms_inconsistent(irg);
2043 set_irg_extblk_inconsistent(irg);
2044 set_irg_loopinfo_inconsistent(irg);
2047 dump_ir_block_graph(irg, "-dw");
2049 pmap_destroy(lenv.proj_2_block);
2051 obstack_free(&lenv.obst, NULL);
2053 del_pdeq(lenv.waitq);
2056 /* Default implementation. */
2057 entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2058 const ir_mode *imode, const ir_mode *omode,
2066 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2068 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2069 get_mode_name(imode), get_mode_name(omode));
2070 id = new_id_from_str(buf);
2072 ent = new_entity(get_glob_type(), id, method);
2073 set_entity_ld_ident(ent, get_entity_ident(ent));
2074 set_entity_visibility(ent, visibility_external_allocated);