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
22 * @brief ISA implementation for Firm IR nodes.
23 * @author Daniel Grund
35 #include "iredges_t.h"
43 #include "../bearch_t.h"
44 #include "../besched.h"
45 #include "../beutil.h"
51 enum { imm_Const, imm_SymConst } tp;
54 symconst_attr symc_attr;
58 static arch_register_t datab_regs[N_REGS];
60 static arch_register_class_t reg_classes[] = {
61 { "datab", N_REGS, NULL, datab_regs },
64 static ir_op *op_push;
67 const arch_isa_if_t firm_isa;
70 (sizeof(reg_classes) / sizeof(reg_classes[0]))
74 tarval *get_Imm_tv(ir_node *n) {
75 imm_attr_t *attr = (imm_attr_t *)get_irn_generic_attr(n);
76 return attr->tp == imm_Const ? attr->data.cnst_attr.tv : NULL;
79 int is_Imm(const ir_node *irn) {
80 return get_irn_op(irn) == op_imm;
83 static int dump_node_Imm(ir_node *n, FILE *F, dump_reason_t reason) {
91 case dump_node_opcode_txt:
95 tarval_snprintf(buf, sizeof(buf), tv);
96 fprintf(F, "%s", buf);
99 fprintf(F, "immSymC");
103 case dump_node_mode_txt:
104 mode = get_irn_mode(n);
106 if (mode && mode != mode_BB && mode != mode_ANY && mode != mode_BAD && mode != mode_T) {
107 fprintf(F, "[%s]", get_mode_name(mode));
111 case dump_node_nodeattr_txt:
112 attr = (imm_attr_t *)get_irn_generic_attr(n);
114 if (is_Imm(n) && attr->tp == imm_SymConst) {
115 const char *name = NULL;
116 symconst_attr *sc_attr = &attr->data.symc_attr;
118 switch (sc_attr->num) {
119 case symconst_addr_name:
120 name = get_id_str(sc_attr->sym.ident_p);
123 case symconst_addr_ent:
124 name = get_entity_ld_name(sc_attr->sym.entity_p);
128 assert(!"Unsupported SymConst");
131 fprintf(F, "&%s ", name);
136 case dump_node_info_txt:
143 static void *firm_init(FILE *outfile)
145 static struct obstack obst;
146 static int inited = 0;
147 arch_isa_t *isa = xmalloc(sizeof(*isa));
150 isa->impl = &firm_isa;
158 for(k = 0; k < N_CLASSES; ++k) {
159 arch_register_class_t *cls = ®_classes[k];
163 for(i = 0; i < cls->n_regs; ++i) {
167 arch_register_t *reg = (arch_register_t *) &cls->regs[i];
169 n = snprintf(buf, sizeof(buf), "r%d", i);
170 name = obstack_copy0(&obst, buf, n);
173 reg->reg_class = cls;
180 * Create some opcodes and types to let firm look a little
181 * bit more like real machines.
184 int push_opc = get_next_ir_opcode();
186 op_push = new_ir_op(push_opc, "Push",
187 op_pin_state_pinned, 0, oparity_binary, 0, 0, NULL);
191 int imm_opc = get_next_ir_opcode();
194 memset(&ops, 0, sizeof(ops));
195 ops.dump_node = dump_node_Imm;
197 op_imm = new_ir_op(imm_opc, "Imm",
198 op_pin_state_pinned, 0, oparity_zero, 0, sizeof(imm_attr_t), &ops);
204 static void firm_done(void *self)
209 static int firm_get_n_reg_class(const void *self)
214 static const arch_register_class_t *firm_get_reg_class(const void *self, int i)
216 assert(i >= 0 && i < N_CLASSES);
217 return ®_classes[i];
220 static const arch_register_class_t *firm_get_reg_class_for_mode(const void *self, const ir_mode *irm)
222 return mode_is_datab(irm) ? ®_classes[CLS_DATAB] : NULL;
225 static ir_type *firm_abi_get_between_type(void *self) {
226 static ir_type *between_type = NULL;
229 between_type = new_type_class(new_id_from_str("firm_be_between"));
230 set_type_size_bytes(between_type, 0);
236 static const be_abi_callbacks_t firm_abi_callbacks = {
239 firm_abi_get_between_type,
245 static void firm_get_call_abi(const void *self, ir_type *method_type, be_abi_call_t *abi)
247 const arch_register_class_t *cls = ®_classes[CLS_DATAB];
249 be_abi_call_flags_t flags = { { 0, 0, 0, 0, 0 } };
252 for(i = 0, n = get_method_n_params(method_type); i < n; ++i) {
253 ir_type *t = get_method_param_type(method_type, i);
254 if(is_Primitive_type(t))
255 be_abi_call_param_reg(abi, i, &cls->regs[i]);
257 be_abi_call_param_stack(abi, i, 1, 0, 0);
260 for(i = 0, n = get_method_n_ress(method_type); i < n; ++i) {
261 ir_type *t = get_method_res_type(method_type, i);
262 if(is_Primitive_type(t))
263 be_abi_call_res_reg(abi, i, &cls->regs[i]);
267 be_abi_call_set_flags(abi, flags, &firm_abi_callbacks);
271 static const arch_register_req_t firm_std_reg_req = {
272 arch_register_req_type_normal,
273 ®_classes[CLS_DATAB],
278 static const arch_register_req_t *
279 firm_get_irn_reg_req(const void *self, const ir_node *irn, int pos)
281 if(is_firm_be_mode(get_irn_mode(irn)))
282 return &firm_std_reg_req;
287 struct irn_reg_assoc {
289 const arch_register_t *reg;
292 static int cmp_irn_reg_assoc(const void *a, const void *b, size_t len)
294 const struct irn_reg_assoc *x = a;
295 const struct irn_reg_assoc *y = b;
297 return x->irn != y->irn;
300 static struct irn_reg_assoc *get_irn_reg_assoc(const ir_node *irn)
302 static set *reg_set = NULL;
303 struct irn_reg_assoc templ;
306 reg_set = new_set(cmp_irn_reg_assoc, 1024);
311 return set_insert(reg_set, &templ, sizeof(templ), HASH_PTR(irn));
314 static void firm_set_irn_reg(const void *self, ir_node *irn, const arch_register_t *reg)
316 struct irn_reg_assoc *assoc = get_irn_reg_assoc(irn);
320 static const arch_register_t *firm_get_irn_reg(const void *self, const ir_node *irn)
322 struct irn_reg_assoc *assoc = get_irn_reg_assoc(irn);
326 static arch_irn_class_t firm_classify(const void *self, const ir_node *irn)
328 arch_irn_class_t res;
330 switch(get_irn_opcode(irn)) {
333 res = arch_irn_class_branch;
336 res = arch_irn_class_call;
339 res = arch_irn_class_normal;
345 static arch_irn_flags_t firm_get_flags(const void *self, const ir_node *irn)
347 arch_irn_flags_t res = 0;
349 if(get_irn_op(irn) == op_imm)
350 res |= arch_irn_flags_rematerializable;
352 switch(get_irn_opcode(irn)) {
362 res |= arch_irn_flags_rematerializable;
370 static void firm_set_stack_bias(const void *self, ir_node *irn, int bias)
374 static ir_entity *firm_get_frame_entity(const void *self, const ir_node *irn)
379 static void firm_set_frame_entity(const void *self, ir_node *irn, ir_entity *ent)
383 static const arch_irn_ops_if_t firm_irn_ops_if = {
384 firm_get_irn_reg_req,
389 firm_get_frame_entity,
390 firm_set_frame_entity,
392 NULL, /* get_inverse */
393 NULL, /* get_op_estimated_cost */
394 NULL, /* possible_memory_operand */
395 NULL, /* perform_memory_operand */
398 static const arch_irn_ops_t firm_irn_ops = {
402 static const void *firm_get_irn_ops(const arch_irn_handler_t *self,
405 return &firm_irn_ops;
408 const arch_irn_handler_t firm_irn_handler = {
412 static ir_node *new_Push(ir_graph *irg, ir_node *bl, ir_node *push, ir_node *arg)
417 return new_ir_node(NULL, irg, bl, op_push, mode_M, 2, ins);
421 * Creates an op_Imm node from an op_Const.
423 static ir_node *new_Imm(ir_graph *irg, ir_node *bl, ir_node *cnst) {
428 res = new_ir_node(NULL, irg, bl, op_imm, get_irn_mode(cnst), 0, ins);
429 attr = (imm_attr_t *) &res->attr;
431 switch (get_irn_opcode(cnst)) {
433 attr->tp = imm_Const;
434 attr->data.cnst_attr = get_irn_const_attr(cnst);
437 attr->tp = imm_SymConst;
438 attr->data.symc_attr = get_irn_symconst_attr(cnst);
443 assert(0 && "Cannot create Imm for this opcode");
449 static void prepare_walker(ir_node *irn, void *data)
451 ir_opcode opc = get_irn_opcode(irn);
453 /* A replacement for this node has already been computed. */
454 if(get_irn_link(irn))
457 if(opc == iro_Call) {
458 ir_node *bl = get_nodes_block(irn);
459 ir_graph *irg = get_irn_irg(bl);
461 ir_node *store = get_Call_mem(irn);
462 ir_node *ptr = get_Call_ptr(irn);
463 ir_type *ct = get_Call_type(irn);
464 int np = get_Call_n_params(irn) > 0 ? 1 : 0;
470 int i, n = get_Call_n_params(irn);
472 unsigned cc = get_method_calling_convention(get_Call_type(irn));
474 if (cc & cc_last_on_top) {
475 store = new_Push(irg, bl, store, get_Call_param(irn, 0));
477 for (i = 1; i < n; ++i)
478 store = new_Push(irg, bl, store, get_Call_param(irn, i));
481 store = new_Push(irg, bl, store, get_Call_param(irn, n - 1));
483 for (i = n - 2; i >= 0; --i)
484 store = new_Push(irg, bl, store, get_Call_param(irn, i));
487 snprintf(buf, sizeof(buf), "push_%s", get_type_name(ct));
489 n = get_method_n_ress(ct);
490 nt = new_type_method(new_id_from_str(buf), 0, n);
491 for(i = 0; i < n; ++i)
492 set_method_res_type(nt, i, get_method_res_type(ct, i));
494 nc = new_r_Call(irg, bl, store, ptr, 0, ins, nt);
496 set_irn_link(nc, nc);
501 static void localize_const_walker(ir_node *irn, void *data)
505 ir_node *bl = get_nodes_block(irn);
507 for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
508 ir_node *op = get_irn_n(irn, i);
509 ir_opcode opc = get_irn_opcode(op);
512 || opc == iro_Unknown
513 || (opc == iro_SymConst /*&& get_SymConst_kind(op) == symconst_addr_ent*/)) {
514 ir_graph *irg = get_irn_irg(bl);
515 ir_node *imm_bl = is_Phi(irn) ? get_Block_cfgpred_block(bl, i) : bl;
517 ir_node *imm = new_Imm(irg, imm_bl, op);
518 set_irn_n(irn, i, imm);
524 static const arch_irn_handler_t *firm_get_irn_handler(const void *self)
526 return &firm_irn_handler;
529 typedef struct _firm_code_gen_t {
530 const arch_code_generator_if_t *impl;
535 static void firm_prepare_graph(void *self)
537 firm_code_gen_t *cg = self;
539 irg_walk_graph(cg->irg, firm_clear_link, localize_const_walker, NULL);
540 irg_walk_graph(cg->irg, NULL, prepare_walker, NULL);
543 static void firm_before_sched(void *self)
547 static void imm_scheduler(ir_node *irn, void *env) {
550 ir_node *user, *user_block, *before, *tgt_block;
552 if (1 != get_irn_n_edges(irn)) {
553 printf("Out edges: %d\n", get_irn_n_edges(irn));
554 assert(1 == get_irn_n_edges(irn));
557 e = get_irn_out_edge_first(irn);
559 user_block = get_nodes_block(user);
561 before = get_Block_cfgpred_block(user_block, e->pos);
565 tgt_block = user_block;
569 set_nodes_block(irn, tgt_block);
570 sched_add_before(before, irn);
574 static void firm_before_ra(void *self)
576 firm_code_gen_t *cg = self;
577 irg_walk_graph(cg->irg, imm_scheduler, NULL, NULL);
580 static void firm_after_ra(void *self)
584 static void firm_codegen_done(void *self)
589 static void *firm_cg_init(be_irg_t *birg);
591 static const arch_code_generator_if_t firm_code_gen_if = {
602 static void *firm_cg_init(be_irg_t *birg)
604 firm_code_gen_t *cg = xmalloc(sizeof(*cg));
605 cg->impl = &firm_code_gen_if;
606 cg->irg = be_get_birg_irg(birg);
611 static const arch_code_generator_if_t *firm_get_code_generator_if(void *self)
613 return &firm_code_gen_if;
616 static const list_sched_selector_t *firm_get_list_sched_selector(const void *self, list_sched_selector_t *selector) {
617 return trivial_selector;
620 static const ilp_sched_selector_t *firm_get_ilp_sched_selector(const void *self) {
625 * Returns the necessary byte alignment for storing a register of given class.
627 static int firm_get_reg_class_alignment(const void *self, const arch_register_class_t *cls) {
628 ir_mode *mode = arch_register_class_mode(cls);
629 return get_mode_size_bytes(mode);
632 static const be_execution_unit_t ***firm_get_allowed_execution_units(const void *self, const ir_node *irn) {
638 static const be_machine_t *firm_get_machine(const void *self) {
645 * Return irp irgs in the desired order.
647 static ir_graph **firm_get_irg_list(const void *self, ir_graph ***irg_list) {
652 * Returns the libFirm configuration parameter for this backend.
654 static const backend_params *firm_get_libfirm_params(void) {
655 static arch_dep_params_t ad = {
657 0, /* Muls are fast enough on Firm */
658 31, /* shift would be ok */
663 static backend_params p = {
664 NULL, /* no additional opcodes */
665 NULL, /* will be set later */
666 0, /* no dword lowering */
667 NULL, /* no creator function */
668 NULL, /* context for create_intrinsic_fkt */
675 const arch_isa_if_t firm_isa = {
678 firm_get_n_reg_class,
680 firm_get_reg_class_for_mode,
682 firm_get_irn_handler,
683 firm_get_code_generator_if,
684 firm_get_list_sched_selector,
685 firm_get_ilp_sched_selector,
686 firm_get_reg_class_alignment,
687 firm_get_libfirm_params,
688 firm_get_allowed_execution_units,