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, *shiftop_tp_u, *shiftop_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);
855 * Translate a Shiftop.
857 * Create an intrinsic Call.
859 static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env) {
860 ir_node *block, *irn;
867 irn = get_binop_left(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 /* The shift count is always mode_Iu in firm, so there is no need for lowering */
881 in[2] = get_binop_right(node);
883 dbg = get_irn_dbg_info(node);
884 block = get_nodes_block(node);
886 mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
887 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
888 irn = new_rd_Call(dbg, current_ir_graph, block, get_irg_no_mem(current_ir_graph),
890 set_irn_pinned(irn, get_irn_pinned(node));
891 irn = new_r_Proj(current_ir_graph, block, irn, mode_T, pn_Call_T_result);
893 idx = get_irn_idx(node);
894 assert(idx < env->n_entries);
895 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
896 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
902 * Create an intrinsic Call.
904 static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
905 ir_node *block, *irn;
912 irn = get_unop_op(node);
913 entry = env->entries[get_irn_idx(irn)];
916 if (! entry->low_word) {
917 /* not ready yet, wait */
918 pdeq_putr(env->waitq, node);
922 in[0] = entry->low_word;
923 in[1] = entry->high_word;
925 dbg = get_irn_dbg_info(node);
926 block = get_nodes_block(node);
928 mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
929 irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, block, env);
930 irn = new_rd_Call(dbg, current_ir_graph, block, get_irg_no_mem(current_ir_graph),
932 set_irn_pinned(irn, get_irn_pinned(node));
933 irn = new_r_Proj(current_ir_graph, block, irn, mode_T, pn_Call_T_result);
935 idx = get_irn_idx(node);
936 assert(idx < env->n_entries);
937 env->entries[idx]->low_word = new_r_Proj(current_ir_graph, block, irn, mode, 0);
938 env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
942 * Translate a logical Binop.
944 * Create two logical Binops.
946 static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
947 ir_node *(*constr_rd)(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
948 ir_node *block, *irn;
949 ir_node *lop_l, *lop_h, *rop_l, *rop_h;
954 irn = get_binop_left(node);
955 entry = env->entries[get_irn_idx(irn)];
958 if (! entry->low_word) {
959 /* not ready yet, wait */
960 pdeq_putr(env->waitq, node);
964 lop_l = entry->low_word;
965 lop_h = entry->high_word;
967 irn = get_binop_right(node);
968 entry = env->entries[get_irn_idx(irn)];
971 if (! entry->low_word) {
972 /* not ready yet, wait */
973 pdeq_putr(env->waitq, node);
977 rop_l = entry->low_word;
978 rop_h = entry->high_word;
980 dbg = get_irn_dbg_info(node);
981 block = get_nodes_block(node);
983 idx = get_irn_idx(node);
984 assert(idx < env->n_entries);
985 env->entries[idx]->low_word = constr_rd(dbg, current_ir_graph, block, lop_l, rop_l, mode);
986 env->entries[idx]->high_word = constr_rd(dbg, current_ir_graph, block, lop_h, rop_h, mode);
989 /** create a logical operation tranformation */
990 #define lower_logical(op) \
991 static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
992 lower_Binop_logical(node, mode, env, new_rd_##op); \
1002 * Create two logical Nots.
1004 static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env) {
1005 ir_node *block, *irn;
1006 ir_node *op_l, *op_h;
1009 node_entry_t *entry;
1011 irn = get_Not_op(node);
1012 entry = env->entries[get_irn_idx(irn)];
1015 if (! entry->low_word) {
1016 /* not ready yet, wait */
1017 pdeq_putr(env->waitq, node);
1021 op_l = entry->low_word;
1022 op_h = entry->high_word;
1024 dbg = get_irn_dbg_info(node);
1025 block = get_nodes_block(node);
1027 idx = get_irn_idx(node);
1028 assert(idx < env->n_entries);
1029 env->entries[idx]->low_word = new_rd_Not(dbg, current_ir_graph, block, op_l, mode);
1030 env->entries[idx]->high_word = new_rd_Not(dbg, current_ir_graph, block, op_h, mode);
1036 static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env) {
1037 ir_node *cmp, *left, *right, *block;
1038 ir_node *sel = get_Cond_selector(node);
1039 ir_mode *m = get_irn_mode(sel);
1043 node_entry_t *lentry, *rentry;
1044 ir_node *proj, *projT = NULL, *projF = NULL;
1045 ir_node *new_bl, *cmpH, *cmpL, *irn;
1046 ir_node *projHF, *projHT;
1052 cmp = get_Proj_pred(sel);
1053 left = get_Cmp_left(cmp);
1054 idx = get_irn_idx(left);
1055 lentry = env->entries[idx];
1061 right = get_Cmp_right(cmp);
1062 idx = get_irn_idx(right);
1063 rentry = env->entries[idx];
1066 if (! lentry->low_word || !rentry->low_word) {
1068 pdeq_putr(env->waitq, node);
1072 /* all right, build the code */
1073 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1074 long proj_nr = get_Proj_proj(proj);
1076 if (proj_nr == pn_Cond_true) {
1077 assert(projT == NULL && "more than one Proj(true)");
1081 assert(proj_nr == pn_Cond_false);
1082 assert(projF == NULL && "more than one Proj(false)");
1085 mark_irn_visited(proj);
1087 assert(projT && projF);
1089 /* create a new high compare */
1090 block = get_nodes_block(cmp);
1091 dbg = get_irn_dbg_info(cmp);
1092 irg = current_ir_graph;
1094 cmpH = new_rd_Cmp(dbg, irg, block, lentry->high_word, rentry->high_word);
1096 pnc = get_Proj_proj(sel);
1097 if (pnc == pn_Cmp_Eq) {
1098 /* simple case:a == b <==> a_h == b_h && a_l == b_l */
1099 pmap_entry *entry = pmap_find(env->proj_2_block, projF);
1102 dst_blk = entry->value;
1104 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Eq);
1105 dbg = get_irn_dbg_info(node);
1106 irn = new_rd_Cond(dbg, irg, block, irn);
1108 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1109 mark_irn_visited(projHF);
1110 exchange(projF, projHF);
1112 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1113 mark_irn_visited(projHT);
1115 new_bl = new_r_Block(irg, 1, &projHT);
1117 dbg = get_irn_dbg_info(cmp);
1118 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1119 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Eq);
1120 dbg = get_irn_dbg_info(node);
1121 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1123 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1124 mark_irn_visited(proj);
1125 add_block_cf_input(dst_blk, projHF, proj);
1127 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1128 mark_irn_visited(proj);
1129 exchange(projT, proj);
1131 else if (pnc == pn_Cmp_Lg) {
1132 /* simple case:a != b <==> a_h != b_h || a_l != b_l */
1133 pmap_entry *entry = pmap_find(env->proj_2_block, projT);
1136 dst_blk = entry->value;
1138 irn = new_r_Proj(irg, block, cmpH, mode_b, pn_Cmp_Lg);
1139 dbg = get_irn_dbg_info(node);
1140 irn = new_rd_Cond(dbg, irg, block, irn);
1142 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1143 mark_irn_visited(projHT);
1144 exchange(projT, projHT);
1146 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1147 mark_irn_visited(projHF);
1149 new_bl = new_r_Block(irg, 1, &projHF);
1151 dbg = get_irn_dbg_info(cmp);
1152 cmpL = new_rd_Cmp(dbg, irg, new_bl, lentry->low_word, rentry->low_word);
1153 irn = new_r_Proj(irg, new_bl, cmpL, mode_b, pn_Cmp_Lg);
1154 dbg = get_irn_dbg_info(node);
1155 irn = new_rd_Cond(dbg, irg, new_bl, irn);
1157 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_true);
1158 mark_irn_visited(proj);
1159 add_block_cf_input(dst_blk, projHT, proj);
1161 proj = new_r_Proj(irg, new_bl, irn, mode_X, pn_Cond_false);
1162 mark_irn_visited(proj);
1163 exchange(projF, proj);
1166 /* a rel b <==> a_h rel b_h || (a_h == b_h && a_l rel b_l) */
1167 ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
1170 entry = pmap_find(env->proj_2_block, projT);
1172 dstT = entry->value;
1174 entry = pmap_find(env->proj_2_block, projF);
1176 dstF = entry->value;
1178 irn = new_r_Proj(irg, block, cmpH, mode_b, pnc);
1179 dbg = get_irn_dbg_info(node);
1180 irn = new_rd_Cond(dbg, irg, block, irn);
1182 projHT = new_r_Proj(irg, block, irn, mode_X, pn_Cond_true);
1183 mark_irn_visited(projHT);
1184 exchange(projT, projHT);
1187 projHF = new_r_Proj(irg, block, irn, mode_X, pn_Cond_false);
1188 mark_irn_visited(projHF);
1190 newbl_eq = new_r_Block(irg, 1, &projHF);
1192 irn = new_r_Proj(irg, newbl_eq, cmpH, mode_b, pn_Cmp_Eq);
1193 irn = new_rd_Cond(dbg, irg, newbl_eq, irn);
1195 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_false);
1196 mark_irn_visited(proj);
1197 exchange(projF, proj);
1200 proj = new_r_Proj(irg, newbl_eq, irn, mode_X, pn_Cond_true);
1201 mark_irn_visited(proj);
1203 newbl_l = new_r_Block(irg, 1, &proj);
1205 dbg = get_irn_dbg_info(cmp);
1206 cmpL = new_rd_Cmp(dbg, irg, newbl_l, lentry->low_word, rentry->low_word);
1207 irn = new_r_Proj(irg, newbl_l, cmpL, mode_b, pnc);
1208 dbg = get_irn_dbg_info(node);
1209 irn = new_rd_Cond(dbg, irg, newbl_l, irn);
1211 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_true);
1212 mark_irn_visited(proj);
1213 add_block_cf_input(dstT, projT, proj);
1215 proj = new_r_Proj(irg, newbl_l, irn, mode_X, pn_Cond_false);
1216 mark_irn_visited(proj);
1217 add_block_cf_input(dstF, projF, proj);
1220 /* we have changed the control flow */
1221 env->flags |= CF_CHANGED;
1224 idx = get_irn_idx(sel);
1226 if (env->entries[idx]) {
1228 Bad, a jump-table with double-word index.
1229 This should not happen, but if it does we handle
1230 it like a Conv were between (in other words, ignore
1234 if (! env->entries[idx]->low_word) {
1235 /* not ready yet, wait */
1236 pdeq_putr(env->waitq, node);
1239 set_Cond_selector(node, env->entries[idx]->low_word);
1245 * Translate a Conv to higher_signed
1247 static void lower_Conv_to_Ls(ir_node *node, lower_env_t *env) {
1248 ir_node *op = get_Conv_op(node);
1249 ir_mode *imode = get_irn_mode(op);
1250 ir_mode *dst_mode = env->params->low_signed;
1251 int idx = get_irn_idx(node);
1252 ir_graph *irg = current_ir_graph;
1253 ir_node *block = get_nodes_block(node);
1254 dbg_info *dbg = get_irn_dbg_info(node);
1256 assert(idx < env->n_entries);
1258 if (mode_is_int(imode) || mode_is_reference(imode)) {
1259 /* simple case: create a high word */
1260 if (imode != dst_mode)
1261 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1263 env->entries[idx]->low_word = op;
1264 env->entries[idx]->high_word = new_rd_Shrs(dbg, irg, block, op,
1265 new_Const_long(mode_Iu, get_mode_size_bits(dst_mode) - 1), dst_mode);
1268 ir_node *irn, *call;
1269 ir_mode *omode = env->params->high_signed;
1270 ir_type *mtp = get_conv_type(imode, omode, env);
1272 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1273 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1274 set_irn_pinned(call, get_irn_pinned(node));
1275 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1277 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1278 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1283 * Translate a Conv to higher_unsigned
1285 static void lower_Conv_to_Lu(ir_node *node, lower_env_t *env) {
1286 ir_node *op = get_Conv_op(node);
1287 ir_mode *imode = get_irn_mode(op);
1288 ir_mode *dst_mode = env->params->low_unsigned;
1289 int idx = get_irn_idx(node);
1290 ir_graph *irg = current_ir_graph;
1291 ir_node *block = get_nodes_block(node);
1292 dbg_info *dbg = get_irn_dbg_info(node);
1294 assert(idx < env->n_entries);
1296 if (mode_is_int(imode) || mode_is_reference(imode)) {
1297 /* simple case: create a high word */
1298 if (imode != dst_mode)
1299 op = new_rd_Conv(dbg, irg, block, op, dst_mode);
1301 env->entries[idx]->low_word = op;
1302 env->entries[idx]->high_word = new_Const(dst_mode, get_mode_null(dst_mode));
1305 ir_node *irn, *call;
1306 ir_mode *omode = env->params->high_unsigned;
1307 ir_type *mtp = get_conv_type(imode, omode, env);
1309 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1310 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
1311 set_irn_pinned(call, get_irn_pinned(node));
1312 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1314 env->entries[idx]->low_word = new_r_Proj(irg, block, irn, dst_mode, 0);
1315 env->entries[idx]->high_word = new_r_Proj(irg, block, irn, dst_mode, 1);
1320 * Translate a Conv from higher_signed
1322 static void lower_Conv_from_Ls(ir_node *node, lower_env_t *env) {
1323 ir_node *op = get_Conv_op(node);
1324 ir_mode *omode = get_irn_mode(node);
1325 ir_node *block = get_nodes_block(node);
1326 dbg_info *dbg = get_irn_dbg_info(node);
1327 int idx = get_irn_idx(op);
1328 ir_graph *irg = current_ir_graph;
1330 assert(idx < env->n_entries);
1332 if (mode_is_int(omode) || mode_is_reference(omode)) {
1333 op = env->entries[idx]->low_word;
1335 /* simple case: create a high word */
1336 if (omode != env->params->low_signed)
1337 op = new_rd_Conv(dbg, irg, block, op, omode);
1339 set_Conv_op(node, op);
1342 ir_node *irn, *call, *in[2];
1343 ir_mode *imode = env->params->high_signed;
1344 ir_type *mtp = get_conv_type(imode, omode, env);
1346 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1347 in[0] = env->entries[idx]->low_word;
1348 in[1] = env->entries[idx]->high_word;
1350 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1351 set_irn_pinned(call, get_irn_pinned(node));
1352 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1354 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1359 * Translate a Conv from higher_unsigned
1361 static void lower_Conv_from_Lu(ir_node *node, lower_env_t *env) {
1362 ir_node *op = get_Conv_op(node);
1363 ir_mode *omode = get_irn_mode(node);
1364 ir_node *block = get_nodes_block(node);
1365 dbg_info *dbg = get_irn_dbg_info(node);
1366 int idx = get_irn_idx(op);
1367 ir_graph *irg = current_ir_graph;
1369 assert(idx < env->n_entries);
1371 if (mode_is_int(omode) || mode_is_reference(omode)) {
1372 op = env->entries[idx]->low_word;
1374 /* simple case: create a high word */
1375 if (omode != env->params->low_unsigned)
1376 op = new_rd_Conv(dbg, irg, block, op, omode);
1378 set_Conv_op(node, op);
1381 ir_node *irn, *call, *in[2];
1382 ir_mode *imode = env->params->high_unsigned;
1383 ir_type *mtp = get_conv_type(imode, omode, env);
1385 irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, block, env);
1386 in[0] = env->entries[idx]->low_word;
1387 in[1] = env->entries[idx]->high_word;
1389 call = new_rd_Call(dbg, irg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
1390 set_irn_pinned(call, get_irn_pinned(node));
1391 irn = new_r_Proj(irg, block, call, mode_T, pn_Call_T_result);
1393 exchange(node, new_r_Proj(irg, block, irn, omode, 0));
1400 static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env) {
1401 mode = get_irn_mode(node);
1403 if (mode == env->params->high_signed)
1404 lower_Conv_to_Ls(node, env);
1405 else if (mode == env->params->high_unsigned)
1406 lower_Conv_to_Lu(node, env);
1408 ir_mode *mode = get_irn_mode(get_Conv_op(node));
1410 if (mode == env->params->high_signed)
1411 lower_Conv_from_Ls(node, env);
1413 assert(mode == env->params->high_unsigned);
1414 lower_Conv_from_Lu(node, env);
1420 * Lower the method type.
1422 static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env) {
1427 if (is_lowered_type(mtp))
1430 entry = pmap_find(lowered_type, mtp);
1432 int i, n, r, n_param, n_res;
1434 /* count new number of params */
1435 n_param = n = get_method_n_params(mtp);
1436 for (i = n_param - 1; i >= 0; --i) {
1437 ir_type *tp = get_method_param_type(mtp, i);
1439 if (is_Primitive_type(tp)) {
1440 ir_mode *mode = get_type_mode(tp);
1442 if (mode == env->params->high_signed ||
1443 mode == env->params->high_unsigned)
1448 /* count new number of results */
1449 n_res = r = get_method_n_ress(mtp);
1450 for (i = n_res - 1; i >= 0; --i) {
1451 ir_type *tp = get_method_res_type(mtp, i);
1453 if (is_Primitive_type(tp)) {
1454 ir_mode *mode = get_type_mode(tp);
1456 if (mode == env->params->high_signed ||
1457 mode == env->params->high_unsigned)
1462 id = mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
1463 res = new_type_method(id, n_param, n_res);
1465 /* set param types and result types */
1466 for (i = n_param = 0; i < n; ++i) {
1467 ir_type *tp = get_method_param_type(mtp, i);
1469 if (is_Primitive_type(tp)) {
1470 ir_mode *mode = get_type_mode(tp);
1472 if (mode == env->params->high_signed) {
1473 set_method_param_type(res, n_param++, tp_s);
1474 set_method_param_type(res, n_param++, tp_s);
1476 else if (mode == env->params->high_unsigned) {
1477 set_method_param_type(res, n_param++, tp_u);
1478 set_method_param_type(res, n_param++, tp_u);
1481 set_method_param_type(res, n_param++, tp);
1484 set_method_param_type(res, n_param++, tp);
1486 for (i = n_res = 0; i < r; ++i) {
1487 ir_type *tp = get_method_res_type(mtp, i);
1489 if (is_Primitive_type(tp)) {
1490 ir_mode *mode = get_type_mode(tp);
1492 if (mode == env->params->high_signed) {
1493 set_method_res_type(res, n_res++, tp_s);
1494 set_method_res_type(res, n_res++, tp_s);
1496 else if (mode == env->params->high_unsigned) {
1497 set_method_res_type(res, n_res++, tp_u);
1498 set_method_res_type(res, n_res++, tp_u);
1501 set_method_res_type(res, n_res++, tp);
1504 set_method_res_type(res, n_res++, tp);
1506 set_lowered_type(mtp, res);
1507 pmap_insert(lowered_type, mtp, res);
1515 * Translate a Return.
1517 static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env) {
1518 ir_graph *irg = current_ir_graph;
1519 entity *ent = get_irg_entity(irg);
1520 ir_type *mtp = get_entity_type(ent);
1525 /* check if this return must be lowered */
1526 for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1527 ir_node *pred = get_Return_res(node, i);
1528 ir_mode *mode = get_irn_op_mode(pred);
1530 if (mode == env->params->high_signed ||
1531 mode == env->params->high_unsigned) {
1532 idx = get_irn_idx(pred);
1533 if (! env->entries[idx]->low_word) {
1534 /* not ready yet, wait */
1535 pdeq_putr(env->waitq, node);
1544 ent = get_irg_entity(irg);
1545 mtp = get_entity_type(ent);
1547 mtp = lower_mtp(mtp, env);
1548 set_entity_type(ent, mtp);
1550 /* create a new in array */
1551 NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
1552 in[0] = get_Return_mem(node);
1554 for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
1555 ir_node *pred = get_Return_res(node, i);
1557 idx = get_irn_idx(pred);
1558 assert(idx < env->n_entries);
1560 if (env->entries[idx]) {
1561 in[++j] = env->entries[idx]->low_word;
1562 in[++j] = env->entries[idx]->high_word;
1568 set_irn_in(node, j+1, in);
1572 * Translate the parameters.
1574 static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env) {
1575 ir_graph *irg = current_ir_graph;
1576 entity *ent = get_irg_entity(irg);
1577 ir_type *tp = get_entity_type(ent);
1580 int i, j, n_params, rem;
1581 ir_node *proj, *args;
1583 if (is_lowered_type(tp))
1584 mtp = get_associated_type(tp);
1588 assert(! is_lowered_type(mtp));
1590 n_params = get_method_n_params(mtp);
1594 NEW_ARR_A(long, new_projs, n_params);
1596 /* first check if we have parameters that must be fixed */
1597 for (i = j = 0; i < n_params; ++i, ++j) {
1598 ir_type *tp = get_method_param_type(mtp, i);
1601 if (is_Primitive_type(tp)) {
1602 ir_mode *mode = get_type_mode(tp);
1604 if (mode == env->params->high_signed ||
1605 mode == env->params->high_unsigned)
1612 mtp = lower_mtp(mtp, env);
1613 set_entity_type(ent, mtp);
1615 /* switch off optimization for new Proj nodes or they might be CSE'ed
1616 with not patched one's */
1617 rem = get_optimize();
1620 /* ok, fix all Proj's and create new ones */
1621 args = get_irg_args(irg);
1622 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1623 ir_node *pred = get_Proj_pred(proj);
1629 /* do not visit this node again */
1630 mark_irn_visited(proj);
1635 proj_nr = get_Proj_proj(proj);
1636 set_Proj_proj(proj, new_projs[proj_nr]);
1638 idx = get_irn_idx(proj);
1639 if (env->entries[idx]) {
1640 mode = get_irn_mode(proj);
1642 if (mode == env->params->high_signed)
1643 mode = env->params->low_signed;
1645 mode = env->params->high_signed;
1647 dbg = get_irn_dbg_info(proj);
1648 env->entries[idx]->low_word =
1649 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr]);
1650 env->entries[idx]->high_word =
1651 new_rd_Proj(dbg, irg, get_nodes_block(proj), args, mode, new_projs[proj_nr] + 1);
1660 static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env) {
1661 ir_graph *irg = current_ir_graph;
1662 ir_type *tp = get_Call_type(node);
1664 ir_node **in, *proj, *results;
1665 int n_params, n_res, need_lower = 0;
1667 long *res_numbers = NULL;
1669 if (is_lowered_type(tp))
1670 call_tp = get_associated_type(tp);
1674 assert(! is_lowered_type(call_tp));
1676 n_params = get_method_n_params(call_tp);
1677 for (i = 0; i < n_params; ++i) {
1678 ir_type *tp = get_method_param_type(call_tp, i);
1680 if (is_Primitive_type(tp)) {
1681 ir_mode *mode = get_type_mode(tp);
1683 if (mode == env->params->high_signed ||
1684 mode == env->params->high_unsigned) {
1690 n_res = get_method_n_ress(call_tp);
1692 NEW_ARR_A(long, res_numbers, n_res);
1694 for (i = j = 0; i < n_res; ++i, ++j) {
1695 ir_type *tp = get_method_res_type(call_tp, i);
1698 if (is_Primitive_type(tp)) {
1699 ir_mode *mode = get_type_mode(tp);
1701 if (mode == env->params->high_signed ||
1702 mode == env->params->high_unsigned) {
1713 /* let's lower it */
1714 call_tp = lower_mtp(call_tp, env);
1715 set_Call_type(node, call_tp);
1717 NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
1719 in[0] = get_Call_mem(node);
1720 in[1] = get_Call_ptr(node);
1722 for (j = 2, i = 0; i < n_params; ++i) {
1723 ir_node *pred = get_Call_param(node, i);
1724 int idx = get_irn_idx(pred);
1726 if (env->entries[idx]) {
1727 if (! env->entries[idx]->low_word) {
1728 /* not ready yet, wait */
1729 pdeq_putr(env->waitq, node);
1732 in[j++] = env->entries[idx]->low_word;
1733 in[j++] = env->entries[idx]->high_word;
1739 set_irn_in(node, j, in);
1741 /* fix the results */
1743 for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
1744 long proj_nr = get_Proj_proj(proj);
1746 if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
1747 /* found the result proj */
1753 if (results) { /* there are results */
1754 int rem = get_optimize();
1756 /* switch off optimization for new Proj nodes or they might be CSE'ed
1757 with not patched one's */
1759 for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
1760 if (get_Proj_pred(proj) == results) {
1761 long proj_nr = get_Proj_proj(proj);
1764 /* found a result */
1765 set_Proj_proj(proj, res_numbers[proj_nr]);
1766 idx = get_irn_idx(proj);
1767 if (env->entries[idx]) {
1768 ir_mode *mode = get_irn_mode(proj);
1771 if (mode == env->params->high_signed)
1772 mode = env->params->low_signed;
1774 mode = env->params->low_unsigned;
1776 dbg = get_irn_dbg_info(proj);
1777 env->entries[idx]->low_word =
1778 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr]);
1779 env->entries[idx]->high_word =
1780 new_rd_Proj(dbg, irg, get_nodes_block(proj), results, mode, res_numbers[proj_nr] + 1);
1782 mark_irn_visited(proj);
1790 * Translate an Unknown into two.
1792 static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env) {
1793 int idx = get_irn_idx(node);
1795 env->entries[idx]->low_word =
1796 env->entries[idx]->high_word = new_r_Unknown(current_ir_graph, mode);
1802 * First step: just create two templates
1804 static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env) {
1805 ir_node *block, *unk;
1806 ir_node **inl, **inh;
1808 int idx, i, arity = get_Phi_n_preds(phi);
1811 idx = get_irn_idx(phi);
1812 if (env->entries[idx]->low_word) {
1813 /* Phi nodes already build, check for inputs */
1814 ir_node *phil = env->entries[idx]->low_word;
1815 ir_node *phih = env->entries[idx]->high_word;
1817 for (i = 0; i < arity; ++i) {
1818 ir_node *pred = get_Phi_pred(phi, i);
1819 int idx = get_irn_idx(pred);
1821 if (env->entries[idx]->low_word) {
1822 set_Phi_pred(phil, i, env->entries[idx]->low_word);
1823 set_Phi_pred(phil, i, env->entries[idx]->high_word);
1826 /* still not ready */
1827 pdeq_putr(env->waitq, phi);
1833 /* first create a new in array */
1834 NEW_ARR_A(ir_node *, inl, arity);
1835 NEW_ARR_A(ir_node *, inh, arity);
1836 unk = new_r_Unknown(current_ir_graph, mode);
1838 for (i = 0; i < arity; ++i) {
1839 ir_node *pred = get_Phi_pred(phi, i);
1840 int idx = get_irn_idx(pred);
1842 if (env->entries[idx]->low_word) {
1843 inl[i] = env->entries[idx]->low_word;
1844 inh[i] = env->entries[idx]->high_word;
1853 dbg = get_irn_dbg_info(phi);
1854 block = get_nodes_block(phi);
1856 idx = get_irn_idx(phi);
1857 assert(idx < env->n_entries);
1858 env->entries[idx]->low_word = new_rd_Phi(dbg, current_ir_graph, block, arity, inl, mode);
1859 env->entries[idx]->high_word = new_rd_Phi(dbg, current_ir_graph, block, arity, inh, mode);
1862 /* not yet finished */
1863 pdeq_putr(env->waitq, phi);
1868 * check for opcodes that must always be lowered.
1870 static int always_lower(opcode code) {
1882 /** The type of a lower function. */
1883 typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
1888 static void lower_ops(ir_node *node, void *env)
1890 lower_env_t *lenv = env;
1891 node_entry_t *entry;
1892 int idx = get_irn_idx(node);
1894 entry = lenv->entries[idx];
1895 if (entry || always_lower(get_irn_opcode(node))) {
1896 ir_op *op = get_irn_op(node);
1897 lower_func func = (lower_func)op->ops.generic;
1900 ir_mode *mode = get_irn_op_mode(node);
1902 if (mode == lenv->params->high_signed)
1903 mode = lenv->params->low_signed;
1905 mode = lenv->params->low_unsigned;
1907 DB((dbg, LEVEL_1, " %+F\n", node));
1908 func(node, mode, lenv);
1913 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
1916 * Compare two op_mode_entry_t's.
1918 static int cmp_op_mode(const void *elt, const void *key, size_t size) {
1919 const op_mode_entry_t *e1 = elt;
1920 const op_mode_entry_t *e2 = key;
1922 return (e1->op - e2->op) | (e1->imode - e2->imode) | (e1->omode - e2->omode);
1926 * Compare two conv_tp_entry_t's.
1928 static int cmp_conv_tp(const void *elt, const void *key, size_t size) {
1929 const conv_tp_entry_t *e1 = elt;
1930 const conv_tp_entry_t *e2 = key;
1932 return (e1->imode - e2->imode) | (e1->omode - e2->omode);
1938 void lower_dw_ops(const lwrdw_param_t *param)
1946 if (! param->enable)
1949 FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
1951 assert(2 * get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->high_signed));
1952 assert(2 * get_mode_size_bits(param->low_unsigned) == get_mode_size_bits(param->high_unsigned));
1953 assert(get_mode_size_bits(param->low_signed) == get_mode_size_bits(param->low_unsigned));
1956 prim_types = pmap_create();
1957 if (! intrinsic_fkt)
1958 intrinsic_fkt = new_set(cmp_op_mode, iro_MaxOpcode);
1960 conv_types = new_set(cmp_conv_tp, 16);
1962 lowered_type = pmap_create();
1965 tp_u = get_primitive_type(param->low_unsigned);
1967 tp_s = get_primitive_type(param->low_signed);
1971 binop_tp_u = new_type_method(IDENT("binop_u_intrinsic"), 4, 2);
1972 set_method_param_type(binop_tp_u, 0, tp_u);
1973 set_method_param_type(binop_tp_u, 1, tp_u);
1974 set_method_param_type(binop_tp_u, 2, tp_u);
1975 set_method_param_type(binop_tp_u, 3, tp_u);
1976 set_method_res_type(binop_tp_u, 0, tp_u);
1977 set_method_res_type(binop_tp_u, 1, tp_u);
1980 binop_tp_s = new_type_method(IDENT("binop_s_intrinsic"), 4, 2);
1981 set_method_param_type(binop_tp_s, 0, tp_s);
1982 set_method_param_type(binop_tp_s, 1, tp_s);
1983 set_method_param_type(binop_tp_s, 2, tp_s);
1984 set_method_param_type(binop_tp_s, 3, tp_s);
1985 set_method_res_type(binop_tp_s, 0, tp_s);
1986 set_method_res_type(binop_tp_s, 1, tp_s);
1988 if (! shiftop_tp_u) {
1989 shiftop_tp_u = new_type_method(IDENT("shiftop_u_intrinsic"), 3, 2);
1990 set_method_param_type(shiftop_tp_u, 0, tp_u);
1991 set_method_param_type(shiftop_tp_u, 1, tp_u);
1992 set_method_param_type(shiftop_tp_u, 2, tp_u);
1993 set_method_res_type(shiftop_tp_u, 0, tp_u);
1994 set_method_res_type(shiftop_tp_u, 1, tp_u);
1996 if (! shiftop_tp_s) {
1997 shiftop_tp_s = new_type_method(IDENT("shiftop_s_intrinsic"), 3, 2);
1998 set_method_param_type(shiftop_tp_s, 0, tp_s);
1999 set_method_param_type(shiftop_tp_s, 1, tp_s);
2000 /* beware: shift count is always mode_Iu */
2001 set_method_param_type(shiftop_tp_s, 2, tp_u);
2002 set_method_res_type(shiftop_tp_s, 0, tp_s);
2003 set_method_res_type(shiftop_tp_s, 1, tp_s);
2006 unop_tp_u = new_type_method(IDENT("unop_u_intrinsic"), 2, 2);
2007 set_method_param_type(unop_tp_u, 0, tp_u);
2008 set_method_param_type(unop_tp_u, 1, tp_u);
2009 set_method_res_type(unop_tp_u, 0, tp_u);
2010 set_method_res_type(unop_tp_u, 1, tp_u);
2013 unop_tp_s = new_type_method(IDENT("unop_s_intrinsic"), 2, 2);
2014 set_method_param_type(unop_tp_s, 0, tp_s);
2015 set_method_param_type(unop_tp_s, 1, tp_s);
2016 set_method_res_type(unop_tp_s, 0, tp_s);
2017 set_method_res_type(unop_tp_s, 1, tp_s);
2020 lenv.tv_mode_bytes = new_tarval_from_long(get_mode_size_bytes(param->low_unsigned), mode_Iu);
2021 lenv.tv_mode_bits = new_tarval_from_long(get_mode_size_bits(param->low_unsigned), mode_Iu);
2022 lenv.waitq = new_pdeq();
2023 lenv.params = param;
2025 /* first clear the generic function pointer for all ops */
2026 clear_irp_opcodes_generic_func();
2028 #define LOWER2(op, fkt) op_##op->ops.generic = (op_func)fkt
2029 #define LOWER(op) LOWER2(op, lower_##op)
2030 #define LOWER_BIN(op) LOWER2(op, lower_Binop)
2031 #define LOWER_SHIFT(op) LOWER2(op, lower_Shiftop)
2032 #define LOWER_UN(op) LOWER2(op, lower_Unop)
2068 /* transform all graphs */
2069 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
2070 ir_graph *irg = get_irp_irg(i);
2073 obstack_init(&lenv.obst);
2075 n_idx = get_irg_last_idx(irg);
2076 lenv.n_entries = n_idx;
2077 lenv.entries = xmalloc(n_idx * sizeof(lenv.entries[0]));
2078 memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
2080 /* first step: link all nodes and allocate data */
2082 lenv.proj_2_block = pmap_create();
2083 irg_walk_graph(irg, firm_clear_link, prepare_links, &lenv);
2085 if (lenv.flags & MUST_BE_LOWERED) {
2086 DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
2088 /* must do some work */
2089 irg_walk_graph(irg, NULL, lower_ops, &lenv);
2091 /* last step: all waiting nodes */
2092 DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
2093 while (! pdeq_empty(lenv.waitq)) {
2094 ir_node *node = pdeq_getl(lenv.waitq);
2096 lower_ops(node, &lenv);
2099 /* outs are invalid, we changed the graph */
2100 set_irg_outs_inconsistent(irg);
2102 if (lenv.flags & CF_CHANGED) {
2103 /* control flow changed, dominance info is invalid */
2104 set_irg_doms_inconsistent(irg);
2105 set_irg_extblk_inconsistent(irg);
2106 set_irg_loopinfo_inconsistent(irg);
2109 dump_ir_block_graph(irg, "-dw");
2111 pmap_destroy(lenv.proj_2_block);
2113 obstack_free(&lenv.obst, NULL);
2115 del_pdeq(lenv.waitq);
2118 /* Default implementation. */
2119 entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
2120 const ir_mode *imode, const ir_mode *omode,
2128 snprintf(buf, sizeof(buf), "__l%s%s", get_op_name(op), get_mode_name(imode));
2130 snprintf(buf, sizeof(buf), "__l%s%s%s", get_op_name(op),
2131 get_mode_name(imode), get_mode_name(omode));
2132 id = new_id_from_str(buf);
2134 ent = new_entity(get_glob_type(), id, method);
2135 set_entity_ld_ident(ent, get_entity_ident(ent));
2136 set_entity_visibility(ent, visibility_external_allocated);