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"
42 #include "../bearch_t.h"
43 #include "../besched.h"
44 #include "../beutil.h"
50 enum { imm_Const, imm_SymConst } tp;
53 symconst_attr symc_attr;
57 static arch_register_t datab_regs[N_REGS];
59 static arch_register_class_t reg_classes[] = {
60 { "datab", N_REGS, NULL, datab_regs },
63 static ir_op *op_push;
66 const arch_isa_if_t firm_isa;
69 (sizeof(reg_classes) / sizeof(reg_classes[0]))
73 tarval *get_Imm_tv(ir_node *n) {
74 imm_attr_t *attr = (imm_attr_t *)get_irn_generic_attr(n);
75 return attr->tp == imm_Const ? attr->data.cnst_attr.tv : NULL;
78 int is_Imm(const ir_node *irn) {
79 return get_irn_op(irn) == op_imm;
82 static int dump_node_Imm(ir_node *n, FILE *F, dump_reason_t reason) {
90 case dump_node_opcode_txt:
94 tarval_snprintf(buf, sizeof(buf), tv);
95 fprintf(F, "%s", buf);
98 fprintf(F, "immSymC");
102 case dump_node_mode_txt:
103 mode = get_irn_mode(n);
105 if (mode && mode != mode_BB && mode != mode_ANY && mode != mode_BAD && mode != mode_T) {
106 fprintf(F, "[%s]", get_mode_name(mode));
110 case dump_node_nodeattr_txt:
111 attr = (imm_attr_t *)get_irn_generic_attr(n);
113 if (is_Imm(n) && attr->tp == imm_SymConst) {
114 const char *name = NULL;
115 symconst_attr *sc_attr = &attr->data.symc_attr;
117 switch (sc_attr->num) {
118 case symconst_addr_name:
119 name = get_id_str(sc_attr->sym.ident_p);
122 case symconst_addr_ent:
123 name = get_entity_ld_name(sc_attr->sym.entity_p);
127 assert(!"Unsupported SymConst");
130 fprintf(F, "&%s ", name);
135 case dump_node_info_txt:
142 static void *firm_init(FILE *outfile)
144 static struct obstack obst;
145 static int inited = 0;
146 arch_isa_t *isa = xmalloc(sizeof(*isa));
149 isa->impl = &firm_isa;
157 for(k = 0; k < N_CLASSES; ++k) {
158 arch_register_class_t *cls = ®_classes[k];
162 for(i = 0; i < cls->n_regs; ++i) {
166 arch_register_t *reg = (arch_register_t *) &cls->regs[i];
168 n = snprintf(buf, sizeof(buf), "r%d", i);
169 name = obstack_copy0(&obst, buf, n);
172 reg->reg_class = cls;
179 * Create some opcodes and types to let firm look a little
180 * bit more like real machines.
183 int push_opc = get_next_ir_opcode();
185 op_push = new_ir_op(push_opc, "Push",
186 op_pin_state_pinned, 0, oparity_binary, 0, 0, NULL);
190 int imm_opc = get_next_ir_opcode();
193 memset(&ops, 0, sizeof(ops));
194 ops.dump_node = dump_node_Imm;
196 op_imm = new_ir_op(imm_opc, "Imm",
197 op_pin_state_pinned, 0, oparity_zero, 0, sizeof(imm_attr_t), &ops);
203 static void firm_done(void *self)
208 static int firm_get_n_reg_class(const void *self)
213 static const arch_register_class_t *firm_get_reg_class(const void *self, int i)
215 assert(i >= 0 && i < N_CLASSES);
216 return ®_classes[i];
219 static const arch_register_class_t *firm_get_reg_class_for_mode(const void *self, const ir_mode *irm)
221 return mode_is_datab(irm) ? ®_classes[CLS_DATAB] : NULL;
224 static ir_type *firm_abi_get_between_type(void *self) {
225 static ir_type *between_type = NULL;
228 between_type = new_type_class(new_id_from_str("firm_be_between"));
229 set_type_size_bytes(between_type, 0);
235 static const be_abi_callbacks_t firm_abi_callbacks = {
238 firm_abi_get_between_type,
244 static void firm_get_call_abi(const void *self, ir_type *method_type, be_abi_call_t *abi)
246 const arch_register_class_t *cls = ®_classes[CLS_DATAB];
248 be_abi_call_flags_t flags = { { 0, 0, 0, 0, 0 } };
251 for(i = 0, n = get_method_n_params(method_type); i < n; ++i) {
252 ir_type *t = get_method_param_type(method_type, i);
253 if(is_Primitive_type(t))
254 be_abi_call_param_reg(abi, i, &cls->regs[i]);
256 be_abi_call_param_stack(abi, i, 1, 0, 0);
259 for(i = 0, n = get_method_n_ress(method_type); i < n; ++i) {
260 ir_type *t = get_method_res_type(method_type, i);
261 if(is_Primitive_type(t))
262 be_abi_call_res_reg(abi, i, &cls->regs[i]);
266 be_abi_call_set_flags(abi, flags, &firm_abi_callbacks);
270 static const arch_register_req_t firm_std_reg_req = {
271 arch_register_req_type_normal,
272 ®_classes[CLS_DATAB],
277 static const arch_register_req_t *
278 firm_get_irn_reg_req(const void *self, const ir_node *irn, int pos)
280 if(is_firm_be_mode(get_irn_mode(irn)))
281 return &firm_std_reg_req;
286 struct irn_reg_assoc {
288 const arch_register_t *reg;
291 static int cmp_irn_reg_assoc(const void *a, const void *b, size_t len)
293 const struct irn_reg_assoc *x = a;
294 const struct irn_reg_assoc *y = b;
296 return x->irn != y->irn;
299 static struct irn_reg_assoc *get_irn_reg_assoc(const ir_node *irn)
301 static set *reg_set = NULL;
302 struct irn_reg_assoc templ;
305 reg_set = new_set(cmp_irn_reg_assoc, 1024);
310 return set_insert(reg_set, &templ, sizeof(templ), HASH_PTR(irn));
313 static void firm_set_irn_reg(const void *self, ir_node *irn, const arch_register_t *reg)
315 struct irn_reg_assoc *assoc = get_irn_reg_assoc(irn);
319 static const arch_register_t *firm_get_irn_reg(const void *self, const ir_node *irn)
321 struct irn_reg_assoc *assoc = get_irn_reg_assoc(irn);
325 static arch_irn_class_t firm_classify(const void *self, const ir_node *irn)
327 arch_irn_class_t res;
329 switch(get_irn_opcode(irn)) {
332 res = arch_irn_class_branch;
335 res = arch_irn_class_call;
338 res = arch_irn_class_normal;
344 static arch_irn_flags_t firm_get_flags(const void *self, const ir_node *irn)
346 arch_irn_flags_t res = 0;
348 if(get_irn_op(irn) == op_imm)
349 res |= arch_irn_flags_rematerializable;
351 switch(get_irn_opcode(irn)) {
361 res |= arch_irn_flags_rematerializable;
369 static void firm_set_stack_bias(const void *self, ir_node *irn, int bias)
373 static ir_entity *firm_get_frame_entity(const void *self, const ir_node *irn)
378 static void firm_set_frame_entity(const void *self, ir_node *irn, ir_entity *ent)
382 static const arch_irn_ops_if_t firm_irn_ops_if = {
383 firm_get_irn_reg_req,
388 firm_get_frame_entity,
389 firm_set_frame_entity,
391 NULL, /* get_inverse */
392 NULL, /* get_op_estimated_cost */
393 NULL, /* possible_memory_operand */
394 NULL, /* perform_memory_operand */
397 static const arch_irn_ops_t firm_irn_ops = {
401 static const void *firm_get_irn_ops(const arch_irn_handler_t *self,
404 return &firm_irn_ops;
407 const arch_irn_handler_t firm_irn_handler = {
411 static ir_node *new_Push(ir_graph *irg, ir_node *bl, ir_node *push, ir_node *arg)
416 return new_ir_node(NULL, irg, bl, op_push, mode_M, 2, ins);
420 * Creates an op_Imm node from an op_Const.
422 static ir_node *new_Imm(ir_graph *irg, ir_node *bl, ir_node *cnst) {
427 res = new_ir_node(NULL, irg, bl, op_imm, get_irn_mode(cnst), 0, ins);
428 attr = (imm_attr_t *) &res->attr;
430 switch (get_irn_opcode(cnst)) {
432 attr->tp = imm_Const;
433 attr->data.cnst_attr = get_irn_const_attr(cnst);
436 attr->tp = imm_SymConst;
437 attr->data.symc_attr = get_irn_symconst_attr(cnst);
442 assert(0 && "Cannot create Imm for this opcode");
448 static void prepare_walker(ir_node *irn, void *data)
450 ir_opcode opc = get_irn_opcode(irn);
452 /* A replacement for this node has already been computed. */
453 if(get_irn_link(irn))
456 if(opc == iro_Call) {
457 ir_node *bl = get_nodes_block(irn);
458 ir_graph *irg = get_irn_irg(bl);
460 ir_node *store = get_Call_mem(irn);
461 ir_node *ptr = get_Call_ptr(irn);
462 ir_type *ct = get_Call_type(irn);
463 int np = get_Call_n_params(irn) > 0 ? 1 : 0;
469 int i, n = get_Call_n_params(irn);
471 unsigned cc = get_method_calling_convention(get_Call_type(irn));
473 if (cc & cc_last_on_top) {
474 store = new_Push(irg, bl, store, get_Call_param(irn, 0));
476 for (i = 1; i < n; ++i)
477 store = new_Push(irg, bl, store, get_Call_param(irn, i));
480 store = new_Push(irg, bl, store, get_Call_param(irn, n - 1));
482 for (i = n - 2; i >= 0; --i)
483 store = new_Push(irg, bl, store, get_Call_param(irn, i));
486 snprintf(buf, sizeof(buf), "push_%s", get_type_name(ct));
488 n = get_method_n_ress(ct);
489 nt = new_type_method(new_id_from_str(buf), 0, n);
490 for(i = 0; i < n; ++i)
491 set_method_res_type(nt, i, get_method_res_type(ct, i));
493 nc = new_r_Call(irg, bl, store, ptr, 0, ins, nt);
495 set_irn_link(nc, nc);
500 static void localize_const_walker(ir_node *irn, void *data)
504 ir_node *bl = get_nodes_block(irn);
506 for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
507 ir_node *op = get_irn_n(irn, i);
508 ir_opcode opc = get_irn_opcode(op);
511 || opc == iro_Unknown
512 || (opc == iro_SymConst /*&& get_SymConst_kind(op) == symconst_addr_ent*/)) {
513 ir_graph *irg = get_irn_irg(bl);
514 ir_node *imm_bl = is_Phi(irn) ? get_Block_cfgpred_block(bl, i) : bl;
516 ir_node *imm = new_Imm(irg, imm_bl, op);
517 set_irn_n(irn, i, imm);
523 static const arch_irn_handler_t *firm_get_irn_handler(const void *self)
525 return &firm_irn_handler;
528 typedef struct _firm_code_gen_t {
529 const arch_code_generator_if_t *impl;
534 static void firm_prepare_graph(void *self)
536 firm_code_gen_t *cg = self;
538 irg_walk_graph(cg->irg, firm_clear_link, localize_const_walker, NULL);
539 irg_walk_graph(cg->irg, NULL, prepare_walker, NULL);
542 static void firm_before_sched(void *self)
546 static void imm_scheduler(ir_node *irn, void *env) {
549 ir_node *user, *user_block, *before, *tgt_block;
551 if (1 != get_irn_n_edges(irn)) {
552 printf("Out edges: %d\n", get_irn_n_edges(irn));
553 assert(1 == get_irn_n_edges(irn));
556 e = get_irn_out_edge_first(irn);
558 user_block = get_nodes_block(user);
560 before = get_Block_cfgpred_block(user_block, e->pos);
564 tgt_block = user_block;
568 set_nodes_block(irn, tgt_block);
569 sched_add_before(before, irn);
573 static void firm_before_ra(void *self)
575 firm_code_gen_t *cg = self;
576 irg_walk_graph(cg->irg, imm_scheduler, NULL, NULL);
579 static void firm_after_ra(void *self)
583 static void firm_codegen_done(void *self)
588 static void *firm_cg_init(be_irg_t *birg);
590 static const arch_code_generator_if_t firm_code_gen_if = {
601 static void *firm_cg_init(be_irg_t *birg)
603 firm_code_gen_t *cg = xmalloc(sizeof(*cg));
604 cg->impl = &firm_code_gen_if;
605 cg->irg = be_get_birg_irg(birg);
610 static const arch_code_generator_if_t *firm_get_code_generator_if(void *self)
612 return &firm_code_gen_if;
615 static const list_sched_selector_t *firm_get_list_sched_selector(const void *self, list_sched_selector_t *selector) {
616 return trivial_selector;
619 static const ilp_sched_selector_t *firm_get_ilp_sched_selector(const void *self) {
624 * Returns the necessary byte alignment for storing a register of given class.
626 static int firm_get_reg_class_alignment(const void *self, const arch_register_class_t *cls) {
627 ir_mode *mode = arch_register_class_mode(cls);
628 return get_mode_size_bytes(mode);
631 static const be_execution_unit_t ***firm_get_allowed_execution_units(const void *self, const ir_node *irn) {
637 static const be_machine_t *firm_get_machine(const void *self) {
644 * Return irp irgs in the desired order.
646 static ir_graph **firm_get_irg_list(const void *self, ir_graph ***irg_list) {
651 * Returns the libFirm configuration parameter for this backend.
653 static const backend_params *firm_get_libfirm_params(void) {
654 static arch_dep_params_t ad = {
656 0, /* Muls are fast enough on Firm */
657 31, /* shift would be ok */
662 static backend_params p = {
663 1, /* need dword lowering */
664 0, /* don't support inline assembler yet */
665 0, /* don't support different calling conventions */
666 NULL, /* no additional opcodes */
667 NULL, /* will be set later */
668 NULL, /* no creator function */
669 NULL, /* context for create_intrinsic_fkt */
670 NULL, /* no inline assembler: no register names */
677 const arch_isa_if_t firm_isa = {
680 firm_get_n_reg_class,
682 firm_get_reg_class_for_mode,
684 firm_get_irn_handler,
685 firm_get_code_generator_if,
686 firm_get_list_sched_selector,
687 firm_get_ilp_sched_selector,
688 firm_get_reg_class_alignment,
689 firm_get_libfirm_params,
690 firm_get_allowed_execution_units,