2 * This file implements the creation of the achitecture specific firm opcodes
3 * and the coresponding node constructors for the $arch assembler irg.
4 * @author Christian Wuerdig
21 #include "irgraph_t.h"
27 #include "firm_common_t.h"
31 #include "../bearch.h"
33 #include "ia32_nodes_attr.h"
34 #include "ia32_new_nodes.h"
35 #include "gen_ia32_regalloc_if.h"
37 #ifdef obstack_chunk_alloc
38 # undef obstack_chunk_alloc
39 # define obstack_chunk_alloc xmalloc
41 # define obstack_chunk_alloc xmalloc
42 # define obstack_chunk_free free
45 /***********************************************************************************
48 * __| |_ _ _ __ ___ _ __ ___ _ __ _ _ __ | |_ ___ _ __| |_ __ _ ___ ___
49 * / _` | | | | '_ ` _ \| '_ \ / _ \ '__| | | '_ \| __/ _ \ '__| _/ _` |/ __/ _ \
50 * | (_| | |_| | | | | | | |_) | __/ | | | | | | || __/ | | || (_| | (_| __/
51 * \__,_|\__,_|_| |_| |_| .__/ \___|_| |_|_| |_|\__\___|_| |_| \__,_|\___\___|
54 ***********************************************************************************/
57 * Prints a tarval to file F.
58 * @param F output file
60 * @param brackets 1 == print square brackets around tarval
62 static void fprintf_tv(FILE *F, tarval *tv, int brackets) {
64 tarval_snprintf(buf, sizeof(buf), tv);
67 fprintf(F, "[%s]", buf);
69 fprintf(F, "%s", buf);
73 * Returns the name of a SymConst.
74 * @param symc the SymConst
75 * @return name of the SymConst
77 const char *get_sc_name(ir_node *symc) {
78 if (get_irn_opcode(symc) != iro_SymConst)
81 switch (get_SymConst_kind(symc)) {
82 case symconst_addr_name:
83 return get_id_str(get_SymConst_name(symc));
85 case symconst_addr_ent:
86 return get_entity_ld_name(get_SymConst_entity(symc));
89 assert(0 && "Unsupported SymConst");
96 * Returns a string containing the names of all registers within the limited bitset
98 static char *get_limited_regs(const arch_register_req_t *req, char *buf, int max) {
99 bitset_t *bs = bitset_alloca(req->cls->n_regs);
104 req->limited(NULL, bs);
106 for (i = 0; i < req->cls->n_regs; i++) {
107 if (bitset_is_set(bs, i)) {
108 cnt = snprintf(p, max - size, " %s", req->cls->regs[i].name);
110 fprintf(stderr, "dumper problem, exiting\n");
126 * Dumps the register requirements for either in or out.
128 static void dump_reg_req(FILE *F, ir_node *n, const ia32_register_req_t **reqs, int inout) {
129 char *dir = inout ? "out" : "in";
130 int max = inout ? get_ia32_n_res(n) : get_irn_arity(n);
131 char *buf = alloca(1024);
134 memset(buf, 0, 1024);
137 for (i = 0; i < max; i++) {
138 fprintf(F, "%sreq #%d =", dir, i);
140 if (reqs[i]->req.type == arch_register_req_type_none) {
144 if (reqs[i]->req.type & arch_register_req_type_normal) {
145 fprintf(F, " %s", reqs[i]->req.cls->name);
148 if (reqs[i]->req.type & arch_register_req_type_limited) {
149 fprintf(F, " %s", get_limited_regs(&reqs[i]->req, buf, 1024));
152 if (reqs[i]->req.type & arch_register_req_type_should_be_same) {
153 ir_fprintf(F, " same as %+F", get_irn_n(n, reqs[i]->pos));
156 if (reqs[i]->req.type & arch_register_req_type_should_be_different) {
157 ir_fprintf(F, " different from %+F", get_irn_n(n, reqs[i]->pos));
166 fprintf(F, "%sreq = N/A\n", dir);
171 * Dumper interface for dumping ia32 nodes in vcg.
172 * @param n the node to dump
173 * @param F the output file
174 * @param reason indicates which kind of information should be dumped
175 * @return 0 on success or != 0 on failure
177 static int dump_node_ia32(ir_node *n, FILE *F, dump_reason_t reason) {
178 ir_mode *mode = NULL;
182 const ia32_register_req_t **reqs;
183 const arch_register_t **slots;
186 case dump_node_opcode_txt:
187 fprintf(F, "%s", get_irn_opname(n));
190 case dump_node_mode_txt:
191 mode = get_irn_mode(n);
193 if (mode == mode_BB || mode == mode_ANY || mode == mode_BAD || mode == mode_T) {
196 else if (is_ia32_Load(n)) {
197 mode = get_irn_mode(get_irn_n(n, 0));
199 else if (is_ia32_Store(n)) {
200 mode = get_irn_mode(get_irn_n(n, 2));
204 fprintf(F, "[%s]", get_mode_name(mode));
208 case dump_node_nodeattr_txt:
209 if (is_ia32_Call(n)) {
210 fprintf(F, "&%s ", get_ia32_sc(n));
212 else if (get_ia32_cnst(n)) {
215 if (get_ia32_sc(n)) {
219 fprintf(F, "[%s%s]", pref, get_ia32_cnst(n));
222 if (is_ia32_AddrModeS(n) || is_ia32_AddrModeD(n)) {
228 case dump_node_info_txt:
229 attr = get_ia32_attr(n);
230 fprintf(F, "=== IA32 attr begin ===\n");
232 /* dump IN requirements */
233 if (get_irn_arity(n) > 0) {
234 reqs = get_ia32_in_req_all(n);
235 dump_reg_req(F, n, reqs, 0);
238 /* dump OUT requirements */
239 if (attr->n_res > 0) {
240 reqs = get_ia32_out_req_all(n);
241 dump_reg_req(F, n, reqs, 1);
244 /* dump assigned registers */
245 slots = get_ia32_slots(n);
246 if (slots && attr->n_res > 0) {
247 for (i = 0; i < attr->n_res; i++) {
249 fprintf(F, "reg #%d = %s\n", i, slots[i]->name);
252 fprintf(F, "reg #%d = n/a\n", i);
262 fprintf(F, "Normal");
268 fprintf(F, "SymConst");
271 fprintf(F, "AM Dest (Load+Store)");
274 fprintf(F, "AM Source (Load)");
280 /* dump supported am */
281 fprintf(F, "AM support = ");
282 switch (attr->am_support) {
287 fprintf(F, "source only (Load)");
290 fprintf(F, "dest only (Load+Store)");
299 fprintf(F, "AM offset = ");
301 fprintf(F, "%s", get_ia32_am_offs(n));
309 fprintf(F, "AM scale = %d\n", get_ia32_am_scale(n));
312 fprintf(F, "pn_code = %d\n", get_ia32_pncode(n));
315 fprintf(F, "n_res = %d\n", get_ia32_n_res(n));
318 fprintf(F, "flags =");
319 if (attr->flags & arch_irn_flags_dont_spill) {
320 fprintf(F, " unspillable");
322 if (attr->flags & arch_irn_flags_rematerializable) {
323 fprintf(F, " remat");
325 if (attr->flags & arch_irn_flags_ignore) {
326 fprintf(F, " ignore");
330 fprintf(F, "=== IA32 attr end ===\n");
331 /* end of: case dump_node_info_txt */
340 /***************************************************************************************************
342 * | | | | | | / / | | | | | | | |
343 * __ _| |_| |_ _ __ ___ ___| |_ / /_ _ ___| |_ _ __ ___ ___| |_| |__ ___ __| |___
344 * / _` | __| __| '__| / __|/ _ \ __| / / _` |/ _ \ __| | '_ ` _ \ / _ \ __| '_ \ / _ \ / _` / __|
345 * | (_| | |_| |_| | \__ \ __/ |_ / / (_| | __/ |_ | | | | | | __/ |_| | | | (_) | (_| \__ \
346 * \__,_|\__|\__|_| |___/\___|\__/_/ \__, |\___|\__| |_| |_| |_|\___|\__|_| |_|\___/ \__,_|___/
349 ***************************************************************************************************/
351 static char *copy_str(char *dst, const char *src) {
352 dst = xcalloc(1, strlen(src) + 1);
353 strncpy(dst, src, strlen(src) + 1);
357 static char *set_cnst_from_tv(char *cnst, tarval *tv) {
362 cnst = xcalloc(1, 64);
363 assert(tarval_snprintf(cnst, 63, tv));
368 * Wraps get_irn_generic_attr() as it takes no const ir_node, so we need to do a cast.
369 * Firm was made by people hating const :-(
371 ia32_attr_t *get_ia32_attr(const ir_node *node) {
372 assert(is_ia32_irn(node) && "need ia32 node to get ia32 attributes");
373 return (ia32_attr_t *)get_irn_generic_attr((ir_node *)node);
377 * Gets the type of an ia32 node.
379 ia32_op_type_t get_ia32_op_type(const ir_node *node) {
380 ia32_attr_t *attr = get_ia32_attr(node);
385 * Sets the type of an ia32 node.
387 void set_ia32_op_type(ir_node *node, ia32_op_type_t tp) {
388 ia32_attr_t *attr = get_ia32_attr(node);
393 * Gets the supported addrmode of an ia32 node
395 ia32_am_type_t get_ia32_am_support(const ir_node *node) {
396 ia32_attr_t *attr = get_ia32_attr(node);
397 return attr->am_support;
401 * Sets the supported addrmode of an ia32 node
403 void set_ia32_am_support(ir_node *node, ia32_am_type_t am_tp) {
404 ia32_attr_t *attr = get_ia32_attr(node);
405 attr->am_support = am_tp;
409 * Joins all offsets to one string with adds.
411 char *get_ia32_am_offs(const ir_node *node) {
412 ia32_attr_t *attr = get_ia32_attr(node);
416 size = obstack_object_size(attr->am_offs);
418 res = xcalloc(1, size + 1);
419 memcpy(res, obstack_base(attr->am_offs), size);
427 * Add an offset for addrmode.
429 static void extend_ia32_am_offs(ir_node *node, char *offset, char op) {
430 ia32_attr_t *attr = get_ia32_attr(node);
432 if (!attr->am_offs) {
433 /* obstack is not initialized */
434 attr->am_offs = xcalloc(1, sizeof(*(attr->am_offs)));
435 obstack_init(attr->am_offs);
438 /* obstack is initialized -> there is already one offset */
439 /* present -> connect the offsets with an add */
440 obstack_printf(attr->am_offs, " %c ", op);
443 obstack_printf(attr->am_offs, "%s", offset);
447 * Add an offset for addrmode.
449 void add_ia32_am_offs(ir_node *node, char *offset) {
450 extend_ia32_am_offs(node, offset, '+');
454 * Sub an offset for addrmode.
456 void sub_ia32_am_offs(ir_node *node, char *offset) {
457 extend_ia32_am_offs(node, offset, '-');
461 * Gets the addr mode const.
463 int get_ia32_am_scale(const ir_node *node) {
464 ia32_attr_t *attr = get_ia32_attr(node);
465 return attr->am_scale;
469 * Sets the index register scale for addrmode.
471 void set_ia32_am_scale(ir_node *node, int scale) {
472 ia32_attr_t *attr = get_ia32_attr(node);
473 attr->am_scale = scale;
477 * Return the tarval of an immediate operation or NULL in case of SymConst
479 tarval *get_ia32_Immop_tarval(const ir_node *node) {
480 ia32_attr_t *attr = get_ia32_attr(node);
485 * Sets the attributes of an immediate operation to the specified tarval
487 void set_ia32_Immop_tarval(ir_node *node, tarval *tv) {
488 ia32_attr_t *attr = get_ia32_attr(node);
490 attr->cnst = set_cnst_from_tv(attr->cnst, attr->tv);
494 * Return the sc attribute.
496 char *get_ia32_sc(const ir_node *node) {
497 ia32_attr_t *attr = get_ia32_attr(node);
502 * Sets the sc attribute.
504 void set_ia32_sc(ir_node *node, char *sc) {
505 ia32_attr_t *attr = get_ia32_attr(node);
506 attr->sc = copy_str(attr->sc, sc);
511 attr->cnst = attr->sc;
515 * Gets the string representation of the internal const (tv or symconst)
517 char *get_ia32_cnst(ir_node *node) {
518 ia32_attr_t *attr = get_ia32_attr(node);
523 * Returns the argument register requirements of an ia32 node.
525 const ia32_register_req_t **get_ia32_in_req_all(const ir_node *node) {
526 ia32_attr_t *attr = get_ia32_attr(node);
531 * Returns the result register requirements of an ia32 node.
533 const ia32_register_req_t **get_ia32_out_req_all(const ir_node *node) {
534 ia32_attr_t *attr = get_ia32_attr(node);
535 return attr->out_req;
539 * Returns the argument register requirement at position pos of an ia32 node.
541 const ia32_register_req_t *get_ia32_in_req(const ir_node *node, int pos) {
542 ia32_attr_t *attr = get_ia32_attr(node);
543 return attr->in_req[pos];
547 * Returns the result register requirement at position pos of an ia32 node.
549 const ia32_register_req_t *get_ia32_out_req(const ir_node *node, int pos) {
550 ia32_attr_t *attr = get_ia32_attr(node);
551 return attr->out_req[pos];
555 * Sets the OUT register requirements at position pos.
557 void set_ia32_req_out(ir_node *node, const ia32_register_req_t *req, int pos) {
558 ia32_attr_t *attr = get_ia32_attr(node);
559 attr->out_req[pos] = req;
563 * Sets the IN register requirements at position pos.
565 void set_ia32_req_in(ir_node *node, const ia32_register_req_t *req, int pos) {
566 ia32_attr_t *attr = get_ia32_attr(node);
567 attr->in_req[pos] = req;
571 * Returns the register flag of an ia32 node.
573 arch_irn_flags_t get_ia32_flags(const ir_node *node) {
574 ia32_attr_t *attr = get_ia32_attr(node);
579 * Sets the register flag of an ia32 node.
581 void set_ia32_flags(const ir_node *node, arch_irn_flags_t flags) {
582 ia32_attr_t *attr = get_ia32_attr(node);
587 * Returns the result register slots of an ia32 node.
589 const arch_register_t **get_ia32_slots(const ir_node *node) {
590 ia32_attr_t *attr = get_ia32_attr(node);
595 * Returns the name of the OUT register at position pos.
597 const char *get_ia32_out_reg_name(const ir_node *node, int pos) {
598 ia32_attr_t *attr = get_ia32_attr(node);
600 assert(is_ia32_irn(node) && "Not an ia32 node.");
601 assert(pos < attr->n_res && "Invalid OUT position.");
602 assert(attr->slots[pos] && "No register assigned");
604 return arch_register_get_name(attr->slots[pos]);
608 * Returns the index of the OUT register at position pos within its register class.
610 int get_ia32_out_regnr(const ir_node *node, int pos) {
611 ia32_attr_t *attr = get_ia32_attr(node);
613 assert(is_ia32_irn(node) && "Not an ia32 node.");
614 assert(pos < attr->n_res && "Invalid OUT position.");
615 assert(attr->slots[pos] && "No register assigned");
617 return arch_register_get_index(attr->slots[pos]);
621 * Returns the OUT register at position pos.
623 const arch_register_t *get_ia32_out_reg(const ir_node *node, int pos) {
624 ia32_attr_t *attr = get_ia32_attr(node);
626 assert(is_ia32_irn(node) && "Not an ia32 node.");
627 assert(pos < attr->n_res && "Invalid OUT position.");
628 assert(attr->slots[pos] && "No register assigned");
630 return attr->slots[pos];
634 * Sets the number of results.
636 void set_ia32_n_res(ir_node *node, int n_res) {
637 ia32_attr_t *attr = get_ia32_attr(node);
642 * Returns the number of results.
644 int get_ia32_n_res(const ir_node *node) {
645 ia32_attr_t *attr = get_ia32_attr(node);
650 * Returns the flavour of an ia32 node,
652 ia32_op_flavour_t get_ia32_flavour(const ir_node *node) {
653 ia32_attr_t *attr = get_ia32_attr(node);
654 return attr->op_flav;
658 * Sets the flavour of an ia32 node to flavour_Div/Mod/DivMod/Mul/Mulh.
660 void set_ia32_flavour(ir_node *node, ia32_op_flavour_t op_flav) {
661 ia32_attr_t *attr = get_ia32_attr(node);
662 attr->op_flav = op_flav;
666 * Returns the projnum code.
668 long get_ia32_pncode(const ir_node *node) {
669 ia32_attr_t *attr = get_ia32_attr(node);
670 return attr->pn_code;
674 * Sets the projnum code
676 void set_ia32_pncode(ir_node *node, long code) {
677 ia32_attr_t *attr = get_ia32_attr(node);
678 attr->pn_code = code;
682 /******************************************************************************************************
684 * (_) | | | | | | / _| | | (_)
685 * ___ _ __ ___ ___ _ __ _| | __ _| |_| |_ _ __ | |_ _ _ _ __ ___| |_ _ ___ _ __ ___
686 * / __| '_ \ / _ \/ __| |/ _` | | / _` | __| __| '__| | _| | | | '_ \ / __| __| |/ _ \| '_ \ / __|
687 * \__ \ |_) | __/ (__| | (_| | | | (_| | |_| |_| | | | | |_| | | | | (__| |_| | (_) | | | | \__ \
688 * |___/ .__/ \___|\___|_|\__,_|_| \__,_|\__|\__|_| |_| \__,_|_| |_|\___|\__|_|\___/|_| |_| |___/
691 ******************************************************************************************************/
694 * Gets the type of an ia32_Const.
696 unsigned get_ia32_Const_type(ir_node *node) {
697 ia32_attr_t *attr = get_ia32_attr(node);
699 assert((is_ia32_Const(node) || is_ia32_fConst(node)) && "Need ia32_Const to get type");
705 * Sets the type of an ia32_Const.
707 void set_ia32_Const_type(ir_node *node, int type) {
708 ia32_attr_t *attr = get_ia32_attr(node);
710 assert((is_ia32_Const(node) || is_ia32_fConst(node)) && "Need ia32_Const to set type");
711 assert((type == ia32_Const || type == ia32_SymConst) && "Unsupported ia32_Const type");
717 * Copy the attributes from an ia32_Const to an Immop (Add_i, Sub_i, ...) node
719 void set_ia32_Immop_attr(ir_node *node, ir_node *cnst) {
720 ia32_attr_t *na = get_ia32_attr(node);
721 ia32_attr_t *ca = get_ia32_attr(cnst);
723 assert((is_ia32_Const(cnst) || is_ia32_fConst(cnst)) && "Need ia32_Const to set Immop attr");
729 na->sc = copy_str(na->sc, ca->sc);
737 * Copy the attributes from a Const to an ia32_Const
739 void set_ia32_Const_attr(ir_node *ia32_cnst, ir_node *cnst) {
740 ia32_attr_t *attr = get_ia32_attr(ia32_cnst);
742 assert((is_ia32_Const(ia32_cnst) || is_ia32_fConst(ia32_cnst)) && "Need ia32_Const to set Const attr");
744 switch (get_irn_opcode(cnst)) {
746 attr->tp = ia32_Const;
747 attr->tv = get_Const_tarval(cnst);
748 attr->cnst = set_cnst_from_tv(attr->cnst, attr->tv);
751 attr->tp = ia32_SymConst;
753 attr->sc = copy_str(attr->sc, get_sc_name(cnst));
754 attr->cnst = attr->sc;
757 assert(0 && "Unknown Const NYI");
760 assert(0 && "Cannot create ia32_Const for this opcode");
765 * Sets the AddrMode(S|D) attribute
767 void set_ia32_AddrMode(ir_node *node, char direction) {
768 ia32_attr_t *attr = get_ia32_attr(node);
772 attr->tp = ia32_AddrModeD;
775 attr->tp = ia32_AddrModeS;
778 assert(0 && "wrong AM type");
783 * Returns whether or not the node is an AddrModeS node.
785 int is_ia32_AddrModeS(ir_node *node) {
786 ia32_attr_t *attr = get_ia32_attr(node);
787 return (attr->tp == ia32_AddrModeS);
791 * Returns whether or not the node is an AddrModeD node.
793 int is_ia32_AddrModeD(ir_node *node) {
794 ia32_attr_t *attr = get_ia32_attr(node);
795 return (attr->tp == ia32_AddrModeD);
800 /***************************************************************************************
803 * _ __ ___ __| | ___ ___ ___ _ __ ___| |_ _ __ _ _ ___| |_ ___ _ __ ___
804 * | '_ \ / _ \ / _` |/ _ \ / __/ _ \| '_ \/ __| __| '__| | | |/ __| __/ _ \| '__/ __|
805 * | | | | (_) | (_| | __/ | (_| (_) | | | \__ \ |_| | | |_| | (__| || (_) | | \__ \
806 * |_| |_|\___/ \__,_|\___| \___\___/|_| |_|___/\__|_| \__,_|\___|\__\___/|_| |___/
808 ***************************************************************************************/
810 /* Include the generated constructor functions */
811 #include "gen_ia32_new_nodes.c.inl"