21 #include "../besched.h"
23 #include "arm_emitter.h"
24 #include "gen_arm_emitter.h"
25 #include "arm_nodes_attr.h"
26 #include "arm_new_nodes.h"
27 #include "arm_map_regs.h"
28 #include "gen_arm_regalloc_if.h"
30 #include "../benode_t.h"
32 #define SNPRINTF_BUF_LEN 128
34 static const arch_env_t *arch_env = NULL;
37 /*************************************************************
39 * (_) | | / _| | | | |
40 * _ __ _ __ _ _ __ | |_| |_ | |__ ___| |_ __ ___ _ __
41 * | '_ \| '__| | '_ \| __| _| | '_ \ / _ \ | '_ \ / _ \ '__|
42 * | |_) | | | | | | | |_| | | | | | __/ | |_) | __/ |
43 * | .__/|_| |_|_| |_|\__|_| |_| |_|\___|_| .__/ \___|_|
46 *************************************************************/
48 int is_immediate_node(ir_node *irn) {
49 if (is_arm_Add_i(irn) || is_arm_Sub_i(irn))
51 if (is_arm_Shr_i(irn) || is_arm_Shr_i(irn) || is_arm_Shl_i(irn))
53 if (is_arm_And_i(irn) || is_arm_Or_i(irn) || is_arm_Eor_i(irn))
55 if (is_arm_Or_Shl_i(irn))
61 * Return a const or symconst as string.
63 static const char *node_const_to_str(ir_node *n) {
64 char buffer[SNPRINTF_BUF_LEN];
66 if ( is_immediate_node(n) ) {
67 long longvalue = get_tarval_long(get_arm_value(n));
69 assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
70 snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
71 str = xmalloc(strlen(buffer) * sizeof(char));
75 if ( is_arm_Const(n) || is_arm_Const_Neg(n) ) {
76 tarval *tv = get_arm_value(n);
77 if ( mode_is_int(get_tarval_mode(tv)) ) {
78 long longvalue = get_tarval_long(get_arm_value(n));
80 assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
81 snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
82 str = xmalloc(strlen(buffer) * sizeof(char));
86 return "found something else in arm_const";
88 } else if ( is_arm_SymConst(n) ) {
89 return get_arm_symconst_label(n);
91 assert( 0 && "das ist gar keine Konstante");
98 * Returns node's offset as string.
100 static char *node_offset_to_str(ir_node *n) {
101 char buffer[SNPRINTF_BUF_LEN];
104 ir_op *irn_op = get_irn_op(n);
105 if (irn_op == op_be_StackParam) {
106 entity *ent = be_get_frame_entity(n);
107 offset = get_entity_offset_bytes(ent);
108 } else if (irn_op==op_be_Reload || irn_op==op_be_Spill) {
109 entity * ent = be_get_spill_entity(n);
110 offset = get_entity_offset_bytes(ent);
111 } else if (irn_op==op_be_IncSP) {
112 int offs = be_get_IncSP_offset(n);
113 be_stack_dir_t dir = be_get_IncSP_direction(n);
114 offset = (dir == be_stack_dir_expand) ? -offs : offs;
116 return "node_offset_to_str will fuer diesen Knotentyp noch implementiert werden";
118 snprintf(buffer, SNPRINTF_BUF_LEN, "%d", offset);
119 result = xmalloc(sizeof(char)*(strlen(buffer) + 1));
120 strcpy(result, buffer);
124 /* We always pass the ir_node which is a pointer. */
125 static int arm_get_arg_type(const lc_arg_occ_t *occ) {
126 return lc_arg_type_ptr;
131 * Returns the register at in position pos.
133 static const arch_register_t *get_in_reg(const ir_node *irn, int pos) {
135 const arch_register_t *reg = NULL;
137 assert(get_irn_arity(irn) > pos && "Invalid IN position");
139 /* The out register of the operator at position pos is the
140 in register we need. */
141 op = get_irn_n(irn, pos);
143 reg = arch_get_irn_register(arch_env, op);
145 /* ONLY TEMPORARY WORK-AROUND */
147 // printf("FIXME\n");
148 // reg = &arm_general_purpose_regs[REG_MURX];
151 assert(reg && "no in register found");
156 * Returns the register at out position pos.
158 static const arch_register_t *get_out_reg(const ir_node *irn, int pos) {
160 const arch_register_t *reg = NULL;
162 assert(get_irn_n_edges(irn) > pos && "Invalid OUT position");
164 /* 1st case: irn is not of mode_T, so it has only */
165 /* one OUT register -> good */
166 /* 2nd case: irn is of mode_T -> collect all Projs and ask the */
167 /* Proj with the corresponding projnum for the register */
169 if (get_irn_mode(irn) != mode_T) {
170 reg = arch_get_irn_register(arch_env, irn);
172 else if (is_arm_irn(irn)) {
173 reg = get_arm_out_reg(irn, pos);
176 const ir_edge_t *edge;
178 foreach_out_edge(irn, edge) {
179 proj = get_edge_src_irn(edge);
180 assert(is_Proj(proj) && "non-Proj from mode_T node");
181 if (get_Proj_proj(proj) == pos) {
182 reg = arch_get_irn_register(arch_env, proj);
188 assert(reg && "no out register found");
193 * Returns the number of the in register at position pos.
195 int get_arm_reg_nr(ir_node *irn, int pos, int in_out) {
196 const arch_register_t *reg;
199 reg = get_in_reg(irn, pos);
202 reg = get_out_reg(irn, pos);
205 return arch_register_get_index(reg);
209 * Returns the name of the in register at position pos.
211 const char *get_arm_reg_name(ir_node *irn, int pos, int in_out) {
212 const arch_register_t *reg;
215 reg = get_in_reg(irn, pos);
218 reg = get_out_reg(irn, pos);
221 return arch_register_get_name(reg);
225 * Get the register name for a node.
227 static int arm_get_reg_name(lc_appendable_t *app,
228 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
231 ir_node *X = arg->v_ptr;
232 int nr = occ->width - 1;
235 return lc_appendable_snadd(app, "(null)", 6);
237 if (occ->conversion == 'S') {
238 buf = get_arm_reg_name(X, nr, 1);
241 buf = get_arm_reg_name(X, nr, 0);
244 lc_appendable_chadd(app, '%');
245 return lc_appendable_snadd(app, buf, strlen(buf));
249 * Returns the tarval or offset of an arm node as a string.
251 static int arm_const_to_str(lc_appendable_t *app,
252 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
255 ir_node *X = arg->v_ptr;
258 return lc_appendable_snadd(app, "(null)", 6);
260 if (occ->conversion == 'C') {
261 buf = node_const_to_str(X);
264 buf = node_offset_to_str(X);
267 return lc_appendable_snadd(app, buf, strlen(buf));
271 * Determines the SSE suffix depending on the mode.
273 static int arm_get_mode_suffix(lc_appendable_t *app,
274 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
276 ir_node *X = arg->v_ptr;
279 return lc_appendable_snadd(app, "(null)", 6);
281 if (get_mode_size_bits(get_irn_mode(X)) == 32)
282 return lc_appendable_chadd(app, 's');
284 return lc_appendable_chadd(app, 'd');
288 * Return the arm printf arg environment.
289 * We use the firm environment with some additional handlers.
291 const lc_arg_env_t *arm_get_arg_env(void) {
292 static lc_arg_env_t *env = NULL;
294 static const lc_arg_handler_t arm_reg_handler = { arm_get_arg_type, arm_get_reg_name };
295 static const lc_arg_handler_t arm_const_handler = { arm_get_arg_type, arm_const_to_str };
296 static const lc_arg_handler_t arm_mode_handler = { arm_get_arg_type, arm_get_mode_suffix };
299 /* extend the firm printer */
300 env = firm_get_arg_env();
303 lc_arg_register(env, "arm:sreg", 'S', &arm_reg_handler);
304 lc_arg_register(env, "arm:dreg", 'D', &arm_reg_handler);
305 lc_arg_register(env, "arm:cnst", 'C', &arm_const_handler);
306 lc_arg_register(env, "arm:offs", 'O', &arm_const_handler);
307 lc_arg_register(env, "arm:mode", 'M', &arm_mode_handler);
314 * Formated print of commands and comments.
316 static void arm_fprintf_format(FILE *F, char *cmd_buf, char *cmnt_buf, ir_node *irn) {
317 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
321 * Add a number to a prefix. This number will not be used a second time.
323 static char *get_unique_label(char *buf, size_t buflen, const char *prefix) {
324 static unsigned long id = 0;
325 snprintf(buf, buflen, "%s%lu", prefix, ++id);
331 * Returns the target label for a control flow node.
333 static char *get_cfop_target(const ir_node *irn, char *buf) {
334 ir_node *bl = get_irn_link(irn);
336 snprintf(buf, SNPRINTF_BUF_LEN, "BLOCK_%ld", get_irn_node_nr(bl));
340 /************************************************************************/
342 /************************************************************************/
344 static void emit_arm_SymConst(ir_node *irn, void *env) {
345 arm_emit_env_t *emit_env = env;
346 FILE *out = emit_env->out;
347 char buffer1[SNPRINTF_BUF_LEN];
348 char *skip_label = get_unique_label(buffer1, SNPRINTF_BUF_LEN, ".L");
349 char buffer2[SNPRINTF_BUF_LEN];
350 char *indi_label = get_unique_label(buffer2, SNPRINTF_BUF_LEN, ".L");
351 fprintf( out, "\tB %s\t\t\t\t\t/* start of indirect SymConst */\n", skip_label );
352 fprintf( out, "\t.align 2\n" );
353 fprintf( out, "%s:\n", indi_label );
354 lc_efprintf(arm_get_arg_env(), out, "\t.word\t%C\n", irn);
355 fprintf( out, "\t.align 2\n" );
356 fprintf( out, "%s:\n", skip_label );
357 lc_efprintf(arm_get_arg_env(), out, "\tLDR %1D, %s\t\t\t/* end of indirect SymConst */\n", irn, indi_label);
360 static void emit_arm_CondJmp(ir_node *irn, void *env) {
361 arm_emit_env_t *emit_env = env;
362 FILE *out = emit_env->out;
363 const ir_edge_t *edge;
364 ir_node *true_block = NULL;
365 ir_node *false_block = NULL;
366 ir_node *op1 = get_irn_n(irn, 0);
367 ir_mode *opmode = get_irn_mode(op1);
369 int proj_num = get_arm_proj_num(irn);
370 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
373 foreach_out_edge(irn, edge) {
374 ir_node* proj = get_edge_src_irn(edge);
375 long nr = get_Proj_proj(proj);
376 ir_node *block = get_irn_link(proj);
377 if ( nr == pn_Cond_true) {
379 } else if (nr == pn_Cond_false) {
382 assert(0 && "tertium non datur! (CondJmp)");
386 if (proj_num == pn_Cmp_False) {
387 fprintf(out, "\tB BLOCK_%ld\t\t\t/* false case */\n", get_irn_node_nr(false_block));
388 } else if (proj_num == pn_Cmp_True) {
389 fprintf(out, "\tB BLOCK_%ld\t\t\t/* true case */\n", get_irn_node_nr(true_block));
391 if (mode_is_float(opmode)) {
392 suffix = "ICHWILLIMPLEMENTIERTWERDEN";
394 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FCMP %1S, %2S", irn, irn);
395 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> FCPSR */", irn, irn );
396 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
398 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FMSTAT", irn, irn);
399 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* FCSPR -> CPSR */");
400 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
402 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
403 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
404 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
406 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
407 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
408 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
411 case pn_Cmp_Eq: suffix = "EQ"; break;
412 case pn_Cmp_Lt: suffix = "LT"; break;
413 case pn_Cmp_Le: suffix = "LE"; break;
414 case pn_Cmp_Gt: suffix = "GT"; break;
415 case pn_Cmp_Ge: suffix = "GE"; break;
416 case pn_Cmp_Lg: suffix = "NE"; break;
417 case pn_Cmp_Leg: suffix = "AL"; break;
418 default: assert(0 && "komische Dinge geschehen");
421 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, %2S", irn, irn);
422 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> CPSR */", irn, irn );
423 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
425 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
426 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
427 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
429 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
430 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
431 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
436 static void emit_arm_CopyB(ir_node *irn, void *env) {
437 arm_emit_env_t *emit_env = env;
438 FILE *out = emit_env->out;
439 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
440 unsigned int size = get_tarval_long(get_arm_value(irn));
441 const lc_arg_env_t *arg_env = arm_get_arg_env();
443 lc_esnprintf(arg_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* MemCopy (%2S)->(%1S) [%d bytes], Use %3S, %4S, %5S and %%r12 */", irn, irn, size, irn, irn, irn);
445 assert ( size > 0 && "CopyB needs size > 0" );
453 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, [%2S, #0]!", irn);
454 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
455 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STR %%r12, [%1S, #0]!", irn);
456 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
459 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S}", irn, irn);
460 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
461 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S}", irn, irn);
462 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
465 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S}", irn, irn, irn);
466 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
467 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S}", irn, irn, irn);
468 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
473 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
474 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
475 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
476 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
481 static void emit_arm_SwitchJmp(ir_node *irn, void *env) {
482 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
483 const ir_edge_t *edge;
485 arm_emit_env_t *emit_env = env;
486 FILE *out = emit_env->out;
491 int default_block_num;
493 block_nr = get_irn_node_nr(irn);
494 n_projs = get_arm_n_projs(irn);
496 projs = xcalloc(n_projs , sizeof(ir_node*));
498 foreach_out_edge(irn, edge) {
499 proj = get_edge_src_irn(edge);
500 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
502 if (get_Proj_proj(proj) == get_arm_default_proj_num(irn))
503 default_block_num = get_irn_node_nr(get_irn_link(proj));
505 projs[get_Proj_proj(proj)] = proj;
508 // CMP %1S, n_projs - 1
513 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, #%u", irn, n_projs - 1);
514 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
515 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
517 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "BHI BLOCK_%d", default_block_num);
518 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
519 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
522 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, TABLE_%d_START", block_nr);
523 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
524 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
526 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %%r12, %%r12, %1S, LSL #2", irn);
527 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
528 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
530 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r15, [%%r12, #0]");
531 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
532 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
534 // LDR %r12, .TABLE_X_START
535 // ADD %r12, %r12, [%1S, LSL #2]
538 fprintf(out, "TABLE_%d_START:\n\t.word\tTABLE_%d\n", block_nr, block_nr);
539 fprintf(out, "\t.align 2\n");
540 fprintf(out, "TABLE_%d:\n", block_nr);
543 for ( i=0; i<n_projs; i++) {
547 block = get_irn_link(proj);
549 block = get_irn_link(projs[get_arm_default_proj_num(irn)]);
551 fprintf(out, "\t.word\tBLOCK_%ld\n",get_irn_node_nr(block));
553 fprintf(out, "\t.align 2\n");
558 /************************************************************************/
560 /************************************************************************/
562 static void emit_be_Call(ir_node *irn, void *env) {
563 arm_emit_env_t *emit_env = env;
564 FILE *out = emit_env->out;
565 entity *target_entity = be_Call_get_entity(irn);
566 const char *target_name = get_entity_name(target_entity);
567 fprintf(out, "\tBL %s\t\t\t\t/* Call */\n", target_name);
570 static void emit_be_IncSP(const ir_node *irn, arm_emit_env_t *emit_env) {
571 FILE *F = emit_env->out;
572 unsigned offs = be_get_IncSP_offset(irn);
574 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
575 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %1D, %1S, #%O", irn, irn, irn );
576 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* IncSP(%O) */", irn);
577 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
579 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
580 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "");
581 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* omitted IncSP(%O) */", irn);
582 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
586 // void emit_be_AddSP(const ir_node *irn, arm_emit_env_t *emit_env) {
587 // FILE *F = emit_env->out;
588 // char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
589 // lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %1D, %1S, %2S", irn, irn, irn );
590 // lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* AddSP(%2S) */", irn);
591 // lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
594 static void emit_be_Copy(const ir_node *irn, arm_emit_env_t *emit_env) {
595 FILE *F = emit_env->out;
596 ir_mode *mode = get_irn_mode(irn);
597 assert( (mode != mode_E) && "IEEE Extended FP not supported");
599 if (get_in_reg(irn, 0) == get_out_reg(irn, 0)) {
600 char cmd_buf[256], cmnt_buf[256];
601 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "");
602 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* omitted Copy: %1S -> %1D */", irn, irn);
603 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
607 if (mode == mode_F) {
608 char cmd_buf[256], cmnt_buf[256];
609 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYS %1D, %1S", irn, irn);
610 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
611 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
612 } else if (mode == mode_D) {
613 char cmd_buf[256], cmnt_buf[256];
614 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYD %1D, %1S", irn, irn);
615 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
616 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
617 } else if (mode_is_numP(mode)) {
618 char cmd_buf[256], cmnt_buf[256];
619 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "MOV %1D, %1S", irn, irn);
620 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
621 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
623 assert(0 && "move not supported for this mode");
625 // emit_arm_Copy(irn, emit_env);
628 static void emit_be_Spill(const ir_node *irn, arm_emit_env_t *emit_env) {
629 FILE *F = emit_env->out;
630 ir_mode *mode = get_irn_mode(irn);
631 assert( (mode != mode_E) && "IEEE Extended FP not supported");
632 if (mode_is_dataM(mode)) {
633 char cmd_buf[256], cmnt_buf[256];
634 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "STR %2S, [%1S, #%O]", irn, irn, irn );
635 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Spill(%2S) -> (%1S) */", irn, irn);
636 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
638 assert(0 && "spill not supported for this mode");
642 static void emit_be_Reload(const ir_node* irn, arm_emit_env_t *emit_env) {
643 FILE *F = emit_env->out;
644 ir_mode *mode = get_irn_mode(irn);
645 assert( (mode != mode_E) && "IEEE Extended FP not supported");
646 if (mode_is_dataM(mode)) {
647 char cmd_buf[256], cmnt_buf[256];
648 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
649 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Reload(%1S) -> (%1D) */", irn, irn);
650 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
652 assert(0 && "reload not supported for this mode");
656 static void emit_be_Perm(const ir_node* irn, arm_emit_env_t *emit_env) {
657 FILE *F = emit_env->out;
658 ir_mode *mode = get_irn_mode(irn);
659 assert( (mode != mode_E) && "IEEE Extended FP not supported");
660 lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* begin Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
661 lc_efprintf(arm_get_arg_env(), F, "\tEOR %2S, %1S, %2S\n", irn, irn, irn);
662 lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* end Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
665 static void emit_be_StackParam(const ir_node *irn, arm_emit_env_t *emit_env) {
666 FILE *F = emit_env->out;
667 ir_mode *mode = get_irn_mode(irn);
668 char cmd_buf[256], cmnt_buf[256];
669 assert( (mode != mode_E) && "IEEE Extended FP not supported");
671 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
672 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* StackParam: (%1S + %O) -> %1D */",irn , irn, irn, get_irn_n(irn, 0));
673 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
676 /************************************************************************/
678 /************************************************************************/
680 static void emit_Jmp(ir_node *irn, void *env) {
681 arm_emit_env_t *emit_env = env;
682 FILE *out = emit_env->out;
683 const ir_edge_t *edge = get_irn_out_edge_first(irn);
684 ir_node *target_block = get_edge_src_irn(edge);
685 fprintf(out, "\tB BLOCK_%ld\t\t\t/* unconditional Jump */\n", get_irn_node_nr(target_block));
688 static void emit_silence(ir_node *irn, void *env) {
694 /***********************************************************************************
697 * _ __ ___ __ _ _ _ __ | |_ _ __ __ _ _ __ ___ _____ _____ _ __| | __
698 * | '_ ` _ \ / _` | | '_ \ | _| '__/ _` | '_ ` _ \ / _ \ \ /\ / / _ \| '__| |/ /
699 * | | | | | | (_| | | | | | | | | | | (_| | | | | | | __/\ V V / (_) | | | <
700 * |_| |_| |_|\__,_|_|_| |_| |_| |_| \__,_|_| |_| |_|\___| \_/\_/ \___/|_| |_|\_\
702 ***********************************************************************************/
705 * Enters the emitter functions for handled nodes into the generic
706 * pointer of an opcode.
708 static void arm_register_emitters(void) {
710 #define ARM_EMIT(a) op_arm_##a->ops.generic = (op_func)emit_arm_##a
711 #define EMIT(a) op_##a->ops.generic = (op_func)emit_##a
712 #define BE_EMIT(a) op_be_##a->ops.generic = (op_func)emit_be_##a
713 #define SILENCE(a) op_##a->ops.generic = (op_func)emit_silence
715 /* first clear the generic function pointer for all ops */
716 clear_irp_opcodes_generic_func();
718 /* register all emitter functions defined in spec */
719 arm_register_spec_emitters();
721 /* other emitter functions */
723 // ARM_EMIT(SwitchJmp);
725 // ARM_EMIT(CopyB_i);
757 * Emits code for a node.
759 static void arm_emit_node(const ir_node *irn, void *env) {
760 arm_emit_env_t *emit_env = env;
761 FILE *F = emit_env->out;
762 ir_op *op = get_irn_op(irn);
763 DEBUG_ONLY(firm_dbg_module_t *mod = emit_env->mod;)
765 DBG((mod, LEVEL_1, "emitting code for %+F\n", irn));
767 if (op->ops.generic) {
768 void (*emit)(const ir_node *, void *) = (void (*)(const ir_node *, void *))op->ops.generic;
772 ir_fprintf(F, "\t\t\t\t\t/* %+F */\n", irn);
777 * Walks over the nodes in a block connected by scheduling edges
778 * and emits code for each node.
780 void arm_gen_block(ir_node *block, void *env) {
783 if (! is_Block(block))
786 fprintf(((arm_emit_env_t *)env)->out, "BLOCK_%ld:\n", get_irn_node_nr(block));
787 sched_foreach(block, irn) {
788 arm_emit_node(irn, env);
794 * Emits code for function start.
796 void arm_emit_start(FILE *F, ir_graph *irg) {
797 const char *irg_name = get_entity_name(get_irg_entity(irg));
798 fprintf(F, "\t.text\n");
799 fprintf(F, "\t.align 2\n");
800 fprintf(F, "\t.global %s\n", irg_name);
801 fprintf(F, "%s:\n", irg_name);
805 * Emits code for function end
807 void arm_emit_end(FILE *F, ir_graph *irg) {
811 * Sets labels for control flow nodes (jump target)
812 * TODO: Jump optimization
814 void arm_gen_labels(ir_node *block, void *env) {
816 int n = get_Block_n_cfgpreds(block);
818 for (n--; n >= 0; n--) {
819 pred = get_Block_cfgpred(block, n);
820 set_irn_link(pred, block);
828 void arm_gen_routine(FILE *F, ir_graph *irg, const arm_code_gen_t *cg) {
829 arm_emit_env_t emit_env;
832 emit_env.arch_env = cg->arch_env;
834 FIRM_DBG_REGISTER(emit_env.mod, "firm.be.arm.emit");
836 /* set the global arch_env (needed by print hooks) */
837 arch_env = cg->arch_env;
839 arm_register_emitters();
841 arm_emit_start(F, irg);
842 irg_block_walk_graph(irg, arm_gen_labels, NULL, &emit_env);
843 irg_walk_blkwise_graph(irg, NULL, arm_gen_block, &emit_env);
844 arm_emit_end(F, irg);