2 * Copyright (C) 1995-2010 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 emit assembler for a backend graph
40 #include "raw_bitset.h"
43 #include "../besched.h"
44 #include "../beblocksched.h"
46 #include "../begnuas.h"
47 #include "../be_dbgout.h"
48 #include "../benode.h"
50 #include "sparc_emitter.h"
51 #include "gen_sparc_emitter.h"
52 #include "sparc_nodes_attr.h"
53 #include "sparc_new_nodes.h"
54 #include "gen_sparc_regalloc_if.h"
57 #define SNPRINTF_BUF_LEN 128
58 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
61 * Returns the register at in position pos.
63 static const arch_register_t *get_in_reg(const ir_node *node, int pos)
66 const arch_register_t *reg = NULL;
68 assert(get_irn_arity(node) > pos && "Invalid IN position");
70 /* The out register of the operator at position pos is the
71 in register we need. */
72 op = get_irn_n(node, pos);
74 reg = arch_get_irn_register(op);
76 assert(reg && "no in register found");
81 * Returns the register at out position pos.
83 static const arch_register_t *get_out_reg(const ir_node *node, int pos)
86 const arch_register_t *reg = NULL;
88 /* 1st case: irn is not of mode_T, so it has only */
89 /* one OUT register -> good */
90 /* 2nd case: irn is of mode_T -> collect all Projs and ask the */
91 /* Proj with the corresponding projnum for the register */
93 if (get_irn_mode(node) != mode_T) {
94 reg = arch_get_irn_register(node);
95 } else if (is_sparc_irn(node)) {
96 reg = arch_irn_get_register(node, pos);
98 const ir_edge_t *edge;
100 foreach_out_edge(node, edge) {
101 proj = get_edge_src_irn(edge);
102 assert(is_Proj(proj) && "non-Proj from mode_T node");
103 if (get_Proj_proj(proj) == pos) {
104 reg = arch_get_irn_register(proj);
110 assert(reg && "no out register found");
114 void sparc_emit_immediate(const ir_node *node)
116 int const val = get_sparc_attr_const(node)->immediate_value;
117 assert(-4096 <= val && val < 4096);
118 be_emit_irprintf("%d", val);
121 void sparc_emit_source_register(const ir_node *node, int pos)
123 const arch_register_t *reg = get_in_reg(node, pos);
125 be_emit_string(arch_register_get_name(reg));
128 void sparc_emit_dest_register(const ir_node *node, int pos)
130 const arch_register_t *reg = get_out_reg(node, pos);
132 be_emit_string(arch_register_get_name(reg));
136 * Emits either a imm or register depending on arity of node
138 * @param register no (-1 if no register)
140 void sparc_emit_reg_or_imm(const ir_node *node, int pos)
142 if (get_irn_arity(node) > pos) {
144 sparc_emit_source_register(node, pos);
146 // we have a imm input
147 sparc_emit_immediate(node);
151 static bool is_stack_pointer_relative(const ir_node *node)
153 const arch_register_t *sp = &sparc_gp_regs[REG_SP];
154 return (is_sparc_St(node) && get_in_reg(node, n_sparc_St_ptr) == sp)
155 || (is_sparc_Ld(node) && get_in_reg(node, n_sparc_Ld_ptr) == sp);
161 void sparc_emit_offset(const ir_node *node)
163 const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
164 long offset = attr->offset;
166 /* bad hack: the real stack stuff is behind the always-there spill
167 * space for the register window and stack */
168 if (is_stack_pointer_relative(node))
169 offset += SPARC_MIN_STACKSIZE;
171 be_emit_irprintf("%+ld", offset);
177 * Emit load mode char
179 void sparc_emit_load_mode(const ir_node *node)
181 const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
182 ir_mode *mode = attr->load_store_mode;
183 int bits = get_mode_size_bits(mode);
184 bool is_signed = mode_is_signed(mode);
187 be_emit_string(is_signed ? "sh" : "uh");
188 } else if (bits == 8) {
189 be_emit_string(is_signed ? "sb" : "ub");
190 } else if (bits == 64) {
198 * Emit store mode char
200 void sparc_emit_store_mode(const ir_node *node)
202 const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
203 ir_mode *mode = attr->load_store_mode;
204 int bits = get_mode_size_bits(mode);
208 } else if (bits == 8) {
210 } else if (bits == 64) {
218 * emit integer signed/unsigned prefix char
220 void sparc_emit_mode_sign_prefix(const ir_node *node)
222 ir_mode *mode = get_irn_mode(node);
223 bool is_signed = mode_is_signed(mode);
224 be_emit_string(is_signed ? "s" : "u");
228 * emit FP load mode char
230 void sparc_emit_fp_load_mode(const ir_node *node)
232 const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
233 ir_mode *mode = attr->load_store_mode;
234 int bits = get_mode_size_bits(mode);
236 assert(mode_is_float(mode));
240 } else if (bits == 64) {
241 be_emit_string("df");
243 panic("FP load mode > 64bits not implemented yet");
248 * emit FP store mode char
250 void sparc_emit_fp_store_mode(const ir_node *node)
252 const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
253 ir_mode *mode = attr->load_store_mode;
254 int bits = get_mode_size_bits(mode);
256 assert(mode_is_float(mode));
260 } else if (bits == 64) {
261 be_emit_string("df");
263 panic("FP store mode > 64bits not implemented yet");
268 * emits the FP mode suffix char
270 void sparc_emit_fp_mode_suffix(const ir_node *node)
272 ir_mode *mode = get_irn_mode(node);
273 int bits = get_mode_size_bits(mode);
275 assert(mode_is_float(mode));
279 } else if (bits == 64) {
282 panic("FP mode > 64bits not implemented yet");
287 * Returns the target label for a control flow node.
289 static void sparc_emit_cfop_target(const ir_node *node)
291 ir_node *block = get_irn_link(node);
292 be_gas_emit_block_name(block);
298 static void sparc_emit_entity(ir_entity *entity)
300 be_gas_emit_entity(entity);
304 * Emits code for stack space management
306 static void emit_be_IncSP(const ir_node *irn)
308 int offs = -be_get_IncSP_offset(irn);
313 /* SPARC stack grows downwards */
315 be_emit_cstring("\tsub ");
318 be_emit_cstring("\tadd ");
321 sparc_emit_source_register(irn, 0);
322 be_emit_irprintf(", %d", offs);
323 be_emit_cstring(", ");
324 sparc_emit_dest_register(irn, 0);
325 be_emit_finish_line_gas(irn);
329 * emits code for save instruction with min. required stack space
331 static void emit_sparc_Save(const ir_node *irn)
333 const sparc_save_attr_t *save_attr = get_sparc_save_attr_const(irn);
334 be_emit_cstring("\tsave ");
335 sparc_emit_source_register(irn, 0);
336 be_emit_irprintf(", %d, ", -save_attr->initial_stacksize);
337 sparc_emit_dest_register(irn, 0);
338 be_emit_finish_line_gas(irn);
342 * emits code to load hi 22 bit of a constant
344 static void emit_sparc_HiImm(const ir_node *irn)
346 const sparc_attr_t *attr = get_sparc_attr_const(irn);
347 be_emit_cstring("\tsethi ");
348 be_emit_irprintf("%%hi(%d), ", attr->immediate_value);
349 sparc_emit_dest_register(irn, 0);
350 be_emit_finish_line_gas(irn);
354 * emits code to load lo 10bits of a constant
356 static void emit_sparc_LoImm(const ir_node *irn)
358 const sparc_attr_t *attr = get_sparc_attr_const(irn);
359 be_emit_cstring("\tor ");
360 sparc_emit_source_register(irn, 0);
361 be_emit_irprintf(", %%lo(%d), ", attr->immediate_value);
362 sparc_emit_dest_register(irn, 0);
363 be_emit_finish_line_gas(irn);
367 * emit code for div with the correct sign prefix
369 static void emit_sparc_Div(const ir_node *irn)
371 be_emit_cstring("\t");
372 sparc_emit_mode_sign_prefix(irn);
373 be_emit_cstring("div ");
375 sparc_emit_source_register(irn, 0);
376 be_emit_cstring(", ");
377 sparc_emit_reg_or_imm(irn, 1);
378 be_emit_cstring(", ");
379 sparc_emit_dest_register(irn, 0);
380 be_emit_finish_line_gas(irn);
384 * emit code for mul with the correct sign prefix
386 static void emit_sparc_Mul(const ir_node *irn)
388 be_emit_cstring("\t");
389 sparc_emit_mode_sign_prefix(irn);
390 be_emit_cstring("mul ");
392 sparc_emit_source_register(irn, 0);
393 be_emit_cstring(", ");
394 sparc_emit_reg_or_imm(irn, 1);
395 be_emit_cstring(", ");
396 sparc_emit_dest_register(irn, 0);
397 be_emit_finish_line_gas(irn);
401 * emits code for mulh
403 static void emit_sparc_Mulh(const ir_node *irn)
405 be_emit_cstring("\t");
406 sparc_emit_mode_sign_prefix(irn);
407 be_emit_cstring("mul ");
409 sparc_emit_source_register(irn, 0);
410 be_emit_cstring(", ");
411 sparc_emit_reg_or_imm(irn, 1);
412 be_emit_cstring(", ");
413 sparc_emit_dest_register(irn, 0);
414 be_emit_finish_line_gas(irn);
416 // our result is in the y register now
417 // we just copy it to the assigned target reg
418 be_emit_cstring("\tmov ");
420 be_emit_string(arch_register_get_name(&sparc_flags_regs[REG_Y]));
421 be_emit_cstring(", ");
422 sparc_emit_dest_register(irn, 0);
423 be_emit_finish_line_gas(irn);
427 * Emits code for return node
429 static void emit_be_Return(const ir_node *irn)
431 be_emit_cstring("\tret");
432 //be_emit_cstring("\tjmp %i7+8");
433 be_emit_finish_line_gas(irn);
434 be_emit_cstring("\trestore");
435 be_emit_finish_line_gas(irn);
439 * Emits code for Call node
441 static void emit_be_Call(const ir_node *irn)
443 ir_entity *entity = be_Call_get_entity(irn);
445 if (entity != NULL) {
446 be_emit_cstring("\tcall ");
447 sparc_emit_entity(entity);
448 be_emit_cstring(", 0");
449 be_emit_finish_line_gas(irn);
450 be_emit_cstring("\tnop");
451 be_emit_pad_comment();
452 be_emit_cstring("/* TODO: use delay slot */\n");
454 be_emit_cstring("\tnop\n");
455 be_emit_pad_comment();
456 be_emit_cstring("/* TODO: Entity == NULL */\n");
457 be_emit_finish_line_gas(irn);
462 * Emit code for Perm node
464 static void emit_be_Perm(const ir_node *irn)
466 be_emit_cstring("\txor ");
467 sparc_emit_source_register(irn, 1);
468 be_emit_cstring(", ");
469 sparc_emit_source_register(irn, 0);
470 be_emit_cstring(", ");
471 sparc_emit_source_register(irn, 0);
472 be_emit_finish_line_gas(NULL);
474 be_emit_cstring("\txor ");
475 sparc_emit_source_register(irn, 1);
476 be_emit_cstring(", ");
477 sparc_emit_source_register(irn, 0);
478 be_emit_cstring(", ");
479 sparc_emit_source_register(irn, 1);
480 be_emit_finish_line_gas(NULL);
482 be_emit_cstring("\txor ");
483 sparc_emit_source_register(irn, 1);
484 be_emit_cstring(", ");
485 sparc_emit_source_register(irn, 0);
486 be_emit_cstring(", ");
487 sparc_emit_source_register(irn, 0);
488 be_emit_finish_line_gas(irn);
492 * TODO: not really tested but seems to work with memperm_arity == 1
494 static void emit_be_MemPerm(const ir_node *node)
500 /* TODO: this implementation is slower than necessary.
501 The longterm goal is however to avoid the memperm node completely */
503 memperm_arity = be_get_MemPerm_entity_arity(node);
504 // we use our local registers - so this is limited to 8 inputs !
505 if (memperm_arity > 8)
506 panic("memperm with more than 8 inputs not supported yet");
508 for (i = 0; i < memperm_arity; ++i) {
510 ir_entity *entity = be_get_MemPerm_in_entity(node, i);
514 be_emit_irprintf("\tst %%l%d, [%%sp-%d]", i, sp_change);
515 be_emit_finish_line_gas(node);
517 /* load from entity */
518 offset = get_entity_offset(entity) + sp_change;
519 be_emit_irprintf("\tld [%%sp+%d], %%l%d", offset, i);
520 be_emit_finish_line_gas(node);
523 for (i = memperm_arity-1; i >= 0; --i) {
525 ir_entity *entity = be_get_MemPerm_out_entity(node, i);
527 /* store to new entity */
528 offset = get_entity_offset(entity) + sp_change;
529 be_emit_irprintf("\tst %%l%d, [%%sp+%d]", i, offset);
530 be_emit_finish_line_gas(node);
531 /* restore register */
532 be_emit_irprintf("\tld [%%sp-%d], %%l%d", sp_change, i);
534 be_emit_finish_line_gas(node);
536 assert(sp_change == 0);
542 static void emit_sparc_SymConst(const ir_node *irn)
544 const sparc_symconst_attr_t *attr = get_sparc_symconst_attr_const(irn);
546 //sethi %hi(const32),%reg
547 //or %reg,%lo(const32),%reg
549 be_emit_cstring("\tsethi %hi(");
550 be_gas_emit_entity(attr->entity);
551 be_emit_cstring("), ");
552 sparc_emit_dest_register(irn, 0);
553 be_emit_cstring("\n ");
555 // TODO: could be combined with the following load/store instruction
556 be_emit_cstring("\tor ");
557 sparc_emit_dest_register(irn, 0);
558 be_emit_cstring(", %lo(");
559 be_gas_emit_entity(attr->entity);
560 be_emit_cstring("), ");
561 sparc_emit_dest_register(irn, 0);
562 be_emit_finish_line_gas(irn);
566 * Emits code for FrameAddr fix
568 static void emit_sparc_FrameAddr(const ir_node *irn)
570 const sparc_symconst_attr_t *attr = get_irn_generic_attr_const(irn);
572 // no need to fix offset as we are adressing via the framepointer
573 if (attr->fp_offset >= 0) {
574 be_emit_cstring("\tadd ");
575 sparc_emit_source_register(irn, 0);
576 be_emit_cstring(", ");
577 be_emit_irprintf("%ld", attr->fp_offset);
579 be_emit_cstring("\tsub ");
580 sparc_emit_source_register(irn, 0);
581 be_emit_cstring(", ");
582 be_emit_irprintf("%ld", -attr->fp_offset);
585 be_emit_cstring(", ");
586 sparc_emit_dest_register(irn, 0);
587 be_emit_finish_line_gas(irn);
592 * Emits code for Branch
594 static void emit_sparc_BXX(const ir_node *irn)
596 const ir_edge_t *edge;
597 const ir_node *proj_true = NULL;
598 const ir_node *proj_false = NULL;
599 const ir_node *block;
600 const ir_node *next_block;
601 ir_node *op1 = get_irn_n(irn, 0);
603 int proj_num = get_sparc_jmp_cond_proj_num(irn);
604 const sparc_cmp_attr_t *cmp_attr = get_irn_generic_attr_const(op1);
605 // bool is_signed = !cmp_attr->is_unsigned;
607 assert(is_sparc_Cmp(op1) || is_sparc_Tst(op1));
609 foreach_out_edge(irn, edge) {
610 ir_node *proj = get_edge_src_irn(edge);
611 long nr = get_Proj_proj(proj);
612 if (nr == pn_Cond_true) {
619 if (cmp_attr->ins_permuted) {
620 proj_num = get_mirrored_pnc(proj_num);
623 /* for now, the code works for scheduled and non-schedules blocks */
624 block = get_nodes_block(irn);
626 /* we have a block schedule */
627 next_block = get_irn_link(block);
629 assert(proj_num != pn_Cmp_False);
630 assert(proj_num != pn_Cmp_True);
632 if (get_irn_link(proj_true) == next_block) {
633 /* exchange both proj's so the second one can be omitted */
634 const ir_node *t = proj_true;
636 proj_true = proj_false;
638 proj_num = get_negated_pnc(proj_num, mode_Iu);
643 case pn_Cmp_Eq: suffix = "e"; break;
644 case pn_Cmp_Lt: suffix = "l"; break;
645 case pn_Cmp_Le: suffix = "le"; break;
646 case pn_Cmp_Gt: suffix = "g"; break;
647 case pn_Cmp_Ge: suffix = "ge"; break;
648 case pn_Cmp_Lg: suffix = "ne"; break;
649 case pn_Cmp_Leg: suffix = "a"; break;
650 default: panic("Cmp has unsupported pnc");
653 /* emit the true proj */
654 be_emit_irprintf("\tb%s ", suffix);
655 sparc_emit_cfop_target(proj_true);
656 be_emit_finish_line_gas(proj_true);
658 be_emit_cstring("\tnop");
659 be_emit_pad_comment();
660 be_emit_cstring("/* TODO: use delay slot */\n");
662 if (get_irn_link(proj_false) == next_block) {
663 be_emit_cstring("\t/* false-fallthrough to ");
664 sparc_emit_cfop_target(proj_false);
665 be_emit_cstring(" */");
666 be_emit_finish_line_gas(proj_false);
668 be_emit_cstring("\tba ");
669 sparc_emit_cfop_target(proj_false);
670 be_emit_finish_line_gas(proj_false);
671 be_emit_cstring("\tnop\t\t/* TODO: use delay slot */\n");
672 be_emit_finish_line_gas(proj_false);
677 * emit Jmp (which actually is a branch always (ba) instruction)
679 static void emit_sparc_Ba(const ir_node *node)
681 ir_node *block, *next_block;
683 /* for now, the code works for scheduled and non-schedules blocks */
684 block = get_nodes_block(node);
686 /* we have a block schedule */
687 next_block = get_irn_link(block);
688 if (get_irn_link(node) != next_block) {
689 be_emit_cstring("\tba ");
690 sparc_emit_cfop_target(node);
691 be_emit_finish_line_gas(node);
692 be_emit_cstring("\tnop\t\t/* TODO: use delay slot */\n");
694 be_emit_cstring("\t/* fallthrough to ");
695 sparc_emit_cfop_target(node);
696 be_emit_cstring(" */");
698 be_emit_finish_line_gas(node);
704 static void emit_be_Copy(const ir_node *irn)
706 ir_mode *mode = get_irn_mode(irn);
708 if (get_in_reg(irn, 0) == get_out_reg(irn, 0)) {
713 if (mode_is_float(mode)) {
714 panic("emit_be_Copy: move not supported for FP");
715 } else if (mode_is_data(mode)) {
716 be_emit_cstring("\tmov ");
717 sparc_emit_source_register(irn, 0);
718 be_emit_cstring(", ");
719 sparc_emit_dest_register(irn, 0);
720 be_emit_finish_line_gas(irn);
722 panic("emit_be_Copy: move not supported for this mode");
728 * dummy emitter for ignored nodes
730 static void emit_nothing(const ir_node *irn)
738 * type of emitter function
740 typedef void (*emit_func) (const ir_node *);
743 * Set a node emitter. Make it a bit more type safe.
745 static inline void set_emitter(ir_op *op, emit_func sparc_emit_node)
747 op->ops.generic = (op_func)sparc_emit_node;
751 * Enters the emitter functions for handled nodes into the generic
752 * pointer of an opcode.
754 static void sparc_register_emitters(void)
756 /* first clear the generic function pointer for all ops */
757 clear_irp_opcodes_generic_func();
758 /* register all emitter functions defined in spec */
759 sparc_register_spec_emitters();
762 set_emitter(op_be_Call, emit_be_Call);
763 set_emitter(op_be_Copy, emit_be_Copy);
764 set_emitter(op_be_CopyKeep, emit_be_Copy);
765 set_emitter(op_be_IncSP, emit_be_IncSP);
766 set_emitter(op_be_MemPerm, emit_be_MemPerm);
767 set_emitter(op_be_Perm, emit_be_Perm);
768 set_emitter(op_be_Return, emit_be_Return);
769 set_emitter(op_sparc_BXX, emit_sparc_BXX);
770 set_emitter(op_sparc_Div, emit_sparc_Div);
771 set_emitter(op_sparc_FrameAddr, emit_sparc_FrameAddr);
772 set_emitter(op_sparc_HiImm, emit_sparc_HiImm);
773 set_emitter(op_sparc_Ba, emit_sparc_Ba);
774 set_emitter(op_sparc_LoImm, emit_sparc_LoImm);
775 set_emitter(op_sparc_Mul, emit_sparc_Mul);
776 set_emitter(op_sparc_Mulh, emit_sparc_Mulh);
777 set_emitter(op_sparc_Save, emit_sparc_Save);
778 set_emitter(op_sparc_SymConst, emit_sparc_SymConst);
780 /* no need to emit anything for the following nodes */
781 set_emitter(op_be_Barrier, emit_nothing);
782 set_emitter(op_be_Keep, emit_nothing);
783 set_emitter(op_be_Start, emit_nothing);
784 set_emitter(op_Phi, emit_nothing);
788 * Emits code for a node.
790 static void sparc_emit_node(const ir_node *node)
792 ir_op *op = get_irn_op(node);
794 if (op->ops.generic) {
795 emit_func func = (emit_func) op->ops.generic;
796 be_dbg_set_dbg_info(get_irn_dbg_info(node));
799 panic("Error: No emit handler for node %+F (graph %+F)\n",
800 node, current_ir_graph);
805 * Walks over the nodes in a block connected by scheduling edges
806 * and emits code for each node.
808 static void sparc_gen_block(ir_node *block, void *data)
813 if (! is_Block(block))
816 be_gas_emit_block_name(block);
817 be_emit_cstring(":\n");
818 be_emit_write_line();
820 sched_foreach(block, node) {
821 sparc_emit_node(node);
827 * Emits code for function start.
829 static void sparc_emit_func_prolog(ir_graph *irg)
831 ir_entity *ent = get_irg_entity(irg);
832 be_gas_emit_function_prolog(ent, 4);
833 be_emit_write_line();
837 * Emits code for function end
839 static void sparc_emit_func_epilog(ir_graph *irg)
841 ir_entity *ent = get_irg_entity(irg);
842 const char *irg_name = get_entity_ld_name(ent);
843 be_emit_write_line();
844 be_emit_irprintf("\t.size %s, .-%s\n", irg_name, irg_name);
845 be_emit_cstring("# -- End ");
846 be_emit_string(irg_name);
847 be_emit_cstring("\n");
848 be_emit_write_line();
853 * TODO: Sets labels for control flow nodes (jump target).
854 * Links control predecessors to there destination blocks.
856 static void sparc_gen_labels(ir_node *block, void *env)
859 int n = get_Block_n_cfgpreds(block);
862 for (n--; n >= 0; n--) {
863 pred = get_Block_cfgpred(block, n);
864 set_irn_link(pred, block); // link the pred of a block (which is a jmp)
872 void sparc_gen_routine(const sparc_code_gen_t *cg, ir_graph *irg)
875 ir_node *last_block = NULL;
876 ir_entity *entity = get_irg_entity(irg);
880 be_gas_elf_type_char = '#';
881 be_gas_object_file_format = OBJECT_FILE_FORMAT_ELF_SPARC;
883 /* register all emitter functions */
884 sparc_register_emitters();
885 be_dbg_method_begin(entity);
887 /* create the block schedule. For now, we don't need it earlier. */
888 blk_sched = be_create_block_schedule(irg);
890 // emit function prolog
891 sparc_emit_func_prolog(irg);
893 // generate BLOCK labels
894 irg_block_walk_graph(irg, sparc_gen_labels, NULL, NULL);
896 // inject block scheduling links & emit code of each block
897 n = ARR_LEN(blk_sched);
898 for (i = 0; i < n;) {
899 ir_node *block, *next_bl;
901 block = blk_sched[i];
903 next_bl = i < n ? blk_sched[i] : NULL;
905 /* set here the link. the emitter expects to find the next block here */
906 set_irn_link(block, next_bl);
907 sparc_gen_block(block, last_block);
911 // emit function epilog
912 sparc_emit_func_epilog(irg);
915 void sparc_init_emitter(void)
917 FIRM_DBG_REGISTER(dbg, "firm.be.sparc.emit");