2 * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * ISA implementation for Firm IR nodes.
32 #include "iredges_t.h"
40 #include "../bearch_t.h"
41 #include "../besched.h"
42 #include "../beutil.h"
48 enum { imm_Const, imm_SymConst } tp;
51 symconst_attr symc_attr;
55 static arch_register_t datab_regs[N_REGS];
57 static arch_register_class_t reg_classes[] = {
58 { "datab", N_REGS, NULL, datab_regs },
61 static ir_op *op_push;
64 const arch_isa_if_t firm_isa;
67 (sizeof(reg_classes) / sizeof(reg_classes[0]))
71 tarval *get_Imm_tv(ir_node *n) {
72 imm_attr_t *attr = (imm_attr_t *)get_irn_generic_attr(n);
73 return attr->tp == imm_Const ? attr->data.cnst_attr.tv : NULL;
76 int is_Imm(const ir_node *irn) {
77 return get_irn_op(irn) == op_imm;
80 static int dump_node_Imm(ir_node *n, FILE *F, dump_reason_t reason) {
88 case dump_node_opcode_txt:
92 tarval_snprintf(buf, sizeof(buf), tv);
93 fprintf(F, "%s", buf);
96 fprintf(F, "immSymC");
100 case dump_node_mode_txt:
101 mode = get_irn_mode(n);
103 if (mode && mode != mode_BB && mode != mode_ANY && mode != mode_BAD && mode != mode_T) {
104 fprintf(F, "[%s]", get_mode_name(mode));
108 case dump_node_nodeattr_txt:
109 attr = (imm_attr_t *)get_irn_generic_attr(n);
111 if (is_Imm(n) && attr->tp == imm_SymConst) {
112 const char *name = NULL;
113 symconst_attr *sc_attr = &attr->data.symc_attr;
115 switch (sc_attr->num) {
116 case symconst_addr_name:
117 name = get_id_str(sc_attr->sym.ident_p);
120 case symconst_addr_ent:
121 name = get_entity_ld_name(sc_attr->sym.entity_p);
125 assert(!"Unsupported SymConst");
128 fprintf(F, "&%s ", name);
133 case dump_node_info_txt:
140 static void *firm_init(FILE *outfile)
142 static struct obstack obst;
143 static int inited = 0;
144 arch_isa_t *isa = xmalloc(sizeof(*isa));
147 isa->impl = &firm_isa;
155 for(k = 0; k < N_CLASSES; ++k) {
156 arch_register_class_t *cls = ®_classes[k];
160 for(i = 0; i < cls->n_regs; ++i) {
164 arch_register_t *reg = (arch_register_t *) &cls->regs[i];
166 n = snprintf(buf, sizeof(buf), "r%d", i);
167 name = obstack_copy0(&obst, buf, n);
170 reg->reg_class = cls;
177 * Create some opcodes and types to let firm look a little
178 * bit more like real machines.
181 int push_opc = get_next_ir_opcode();
183 op_push = new_ir_op(push_opc, "Push",
184 op_pin_state_pinned, 0, oparity_binary, 0, 0, NULL);
188 int imm_opc = get_next_ir_opcode();
191 memset(&ops, 0, sizeof(ops));
192 ops.dump_node = dump_node_Imm;
194 op_imm = new_ir_op(imm_opc, "Imm",
195 op_pin_state_pinned, 0, oparity_zero, 0, sizeof(imm_attr_t), &ops);
201 static void firm_done(void *self)
206 static int firm_get_n_reg_class(const void *self)
211 static const arch_register_class_t *firm_get_reg_class(const void *self, int i)
213 assert(i >= 0 && i < N_CLASSES);
214 return ®_classes[i];
217 static const arch_register_class_t *firm_get_reg_class_for_mode(const void *self, const ir_mode *irm)
219 return mode_is_datab(irm) ? ®_classes[CLS_DATAB] : NULL;
222 static ir_type *firm_abi_get_between_type(void *self) {
223 static ir_type *between_type = NULL;
226 between_type = new_type_class(new_id_from_str("firm_be_between"));
227 set_type_size_bytes(between_type, 0);
233 static const be_abi_callbacks_t firm_abi_callbacks = {
236 firm_abi_get_between_type,
242 static void firm_get_call_abi(const void *self, ir_type *method_type, be_abi_call_t *abi)
244 const arch_register_class_t *cls = ®_classes[CLS_DATAB];
246 be_abi_call_flags_t flags = { { 0, 0, 0, 0, 0 } };
249 for(i = 0, n = get_method_n_params(method_type); i < n; ++i) {
250 ir_type *t = get_method_param_type(method_type, i);
251 if(is_Primitive_type(t))
252 be_abi_call_param_reg(abi, i, &cls->regs[i]);
254 be_abi_call_param_stack(abi, i, 1, 0, 0);
257 for(i = 0, n = get_method_n_ress(method_type); i < n; ++i) {
258 ir_type *t = get_method_res_type(method_type, i);
259 if(is_Primitive_type(t))
260 be_abi_call_res_reg(abi, i, &cls->regs[i]);
264 be_abi_call_set_flags(abi, flags, &firm_abi_callbacks);
268 static const arch_register_req_t firm_std_reg_req = {
269 arch_register_req_type_normal,
270 ®_classes[CLS_DATAB],
275 static const arch_register_req_t *
276 firm_get_irn_reg_req(const void *self, const ir_node *irn, int pos)
278 if(is_firm_be_mode(get_irn_mode(irn)))
279 return &firm_std_reg_req;
284 struct irn_reg_assoc {
286 const arch_register_t *reg;
289 static int cmp_irn_reg_assoc(const void *a, const void *b, size_t len)
291 const struct irn_reg_assoc *x = a;
292 const struct irn_reg_assoc *y = b;
294 return x->irn != y->irn;
297 static struct irn_reg_assoc *get_irn_reg_assoc(const ir_node *irn)
299 static set *reg_set = NULL;
300 struct irn_reg_assoc templ;
303 reg_set = new_set(cmp_irn_reg_assoc, 1024);
308 return set_insert(reg_set, &templ, sizeof(templ), HASH_PTR(irn));
311 static void firm_set_irn_reg(const void *self, ir_node *irn, const arch_register_t *reg)
313 struct irn_reg_assoc *assoc = get_irn_reg_assoc(irn);
317 static const arch_register_t *firm_get_irn_reg(const void *self, const ir_node *irn)
319 struct irn_reg_assoc *assoc = get_irn_reg_assoc(irn);
323 static arch_irn_class_t firm_classify(const void *self, const ir_node *irn)
325 arch_irn_class_t res;
327 switch(get_irn_opcode(irn)) {
330 res = arch_irn_class_branch;
333 res = arch_irn_class_call;
336 res = arch_irn_class_normal;
342 static arch_irn_flags_t firm_get_flags(const void *self, const ir_node *irn)
344 arch_irn_flags_t res = 0;
346 if(get_irn_op(irn) == op_imm)
347 res |= arch_irn_flags_rematerializable;
349 switch(get_irn_opcode(irn)) {
359 res |= arch_irn_flags_rematerializable;
367 static void firm_set_stack_bias(const void *self, ir_node *irn, int bias)
371 static ir_entity *firm_get_frame_entity(const void *self, const ir_node *irn)
376 static void firm_set_frame_entity(const void *self, ir_node *irn, ir_entity *ent)
380 static const arch_irn_ops_if_t firm_irn_ops_if = {
381 firm_get_irn_reg_req,
386 firm_get_frame_entity,
387 firm_set_frame_entity,
389 NULL, /* get_inverse */
390 NULL, /* get_op_estimated_cost */
391 NULL, /* possible_memory_operand */
392 NULL, /* perform_memory_operand */
395 static const arch_irn_ops_t firm_irn_ops = {
399 static const void *firm_get_irn_ops(const arch_irn_handler_t *self,
402 return &firm_irn_ops;
405 const arch_irn_handler_t firm_irn_handler = {
409 static ir_node *new_Push(ir_graph *irg, ir_node *bl, ir_node *push, ir_node *arg)
414 return new_ir_node(NULL, irg, bl, op_push, mode_M, 2, ins);
418 * Creates an op_Imm node from an op_Const.
420 static ir_node *new_Imm(ir_graph *irg, ir_node *bl, ir_node *cnst) {
425 res = new_ir_node(NULL, irg, bl, op_imm, get_irn_mode(cnst), 0, ins);
426 attr = (imm_attr_t *) &res->attr;
428 switch (get_irn_opcode(cnst)) {
430 attr->tp = imm_Const;
431 attr->data.cnst_attr = get_irn_const_attr(cnst);
434 attr->tp = imm_SymConst;
435 attr->data.symc_attr = get_irn_symconst_attr(cnst);
440 assert(0 && "Cannot create Imm for this opcode");
446 static void prepare_walker(ir_node *irn, void *data)
448 ir_opcode opc = get_irn_opcode(irn);
450 /* A replacement for this node has already been computed. */
451 if(get_irn_link(irn))
454 if(opc == iro_Call) {
455 ir_node *bl = get_nodes_block(irn);
456 ir_graph *irg = get_irn_irg(bl);
458 ir_node *store = get_Call_mem(irn);
459 ir_node *ptr = get_Call_ptr(irn);
460 ir_type *ct = get_Call_type(irn);
461 int np = get_Call_n_params(irn) > 0 ? 1 : 0;
467 int i, n = get_Call_n_params(irn);
469 unsigned cc = get_method_calling_convention(get_Call_type(irn));
471 if (cc & cc_last_on_top) {
472 store = new_Push(irg, bl, store, get_Call_param(irn, 0));
474 for (i = 1; i < n; ++i)
475 store = new_Push(irg, bl, store, get_Call_param(irn, i));
478 store = new_Push(irg, bl, store, get_Call_param(irn, n - 1));
480 for (i = n - 2; i >= 0; --i)
481 store = new_Push(irg, bl, store, get_Call_param(irn, i));
484 snprintf(buf, sizeof(buf), "push_%s", get_type_name(ct));
486 n = get_method_n_ress(ct);
487 nt = new_type_method(new_id_from_str(buf), 0, n);
488 for(i = 0; i < n; ++i)
489 set_method_res_type(nt, i, get_method_res_type(ct, i));
491 nc = new_r_Call(irg, bl, store, ptr, 0, ins, nt);
493 set_irn_link(nc, nc);
498 static void localize_const_walker(ir_node *irn, void *data)
502 ir_node *bl = get_nodes_block(irn);
504 for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
505 ir_node *op = get_irn_n(irn, i);
506 ir_opcode opc = get_irn_opcode(op);
509 || opc == iro_Unknown
510 || (opc == iro_SymConst /*&& get_SymConst_kind(op) == symconst_addr_ent*/)) {
511 ir_graph *irg = get_irn_irg(bl);
512 ir_node *imm_bl = is_Phi(irn) ? get_Block_cfgpred_block(bl, i) : bl;
514 ir_node *imm = new_Imm(irg, imm_bl, op);
515 set_irn_n(irn, i, imm);
521 static const arch_irn_handler_t *firm_get_irn_handler(const void *self)
523 return &firm_irn_handler;
526 typedef struct _firm_code_gen_t {
527 const arch_code_generator_if_t *impl;
532 static void firm_prepare_graph(void *self)
534 firm_code_gen_t *cg = self;
536 irg_walk_graph(cg->irg, firm_clear_link, localize_const_walker, NULL);
537 irg_walk_graph(cg->irg, NULL, prepare_walker, NULL);
540 static void firm_before_sched(void *self)
544 static void imm_scheduler(ir_node *irn, void *env) {
547 ir_node *user, *user_block, *before, *tgt_block;
549 if (1 != get_irn_n_edges(irn)) {
550 printf("Out edges: %d\n", get_irn_n_edges(irn));
551 assert(1 == get_irn_n_edges(irn));
554 e = get_irn_out_edge_first(irn);
556 user_block = get_nodes_block(user);
558 before = get_Block_cfgpred_block(user_block, e->pos);
562 tgt_block = user_block;
566 set_nodes_block(irn, tgt_block);
567 sched_add_before(before, irn);
571 static void firm_before_ra(void *self)
573 firm_code_gen_t *cg = self;
574 irg_walk_graph(cg->irg, imm_scheduler, NULL, NULL);
577 static void firm_after_ra(void *self)
581 static void firm_codegen_done(void *self)
586 static void *firm_cg_init(be_irg_t *birg);
588 static const arch_code_generator_if_t firm_code_gen_if = {
599 static void *firm_cg_init(be_irg_t *birg)
601 firm_code_gen_t *cg = xmalloc(sizeof(*cg));
602 cg->impl = &firm_code_gen_if;
603 cg->irg = be_get_birg_irg(birg);
608 static const arch_code_generator_if_t *firm_get_code_generator_if(void *self)
610 return &firm_code_gen_if;
613 static const list_sched_selector_t *firm_get_list_sched_selector(const void *self, list_sched_selector_t *selector) {
614 return trivial_selector;
617 static const ilp_sched_selector_t *firm_get_ilp_sched_selector(const void *self) {
622 * Returns the necessary byte alignment for storing a register of given class.
624 static int firm_get_reg_class_alignment(const void *self, const arch_register_class_t *cls) {
625 ir_mode *mode = arch_register_class_mode(cls);
626 return get_mode_size_bytes(mode);
629 static const be_execution_unit_t ***firm_get_allowed_execution_units(const void *self, const ir_node *irn) {
635 static const be_machine_t *firm_get_machine(const void *self) {
642 * Return irp irgs in the desired order.
644 static ir_graph **firm_get_irg_list(const void *self, ir_graph ***irg_list) {
649 * Returns the libFirm configuration parameter for this backend.
651 static const backend_params *firm_get_libfirm_params(void) {
652 static arch_dep_params_t ad = {
654 0, /* Muls are fast enough on Firm */
655 31, /* shift would be ok */
660 static backend_params p = {
661 NULL, /* no additional opcodes */
662 NULL, /* will be set later */
663 0, /* no dword lowering */
664 NULL, /* no creator function */
665 NULL, /* context for create_intrinsic_fkt */
672 const arch_isa_if_t firm_isa = {
675 firm_get_n_reg_class,
677 firm_get_reg_class_for_mode,
679 firm_get_irn_handler,
680 firm_get_code_generator_if,
681 firm_get_list_sched_selector,
682 firm_get_ilp_sched_selector,
683 firm_get_reg_class_alignment,
684 firm_get_libfirm_params,
685 firm_get_allowed_execution_units,