20 #include "../besched.h"
22 #include "arm_emitter.h"
23 #include "gen_arm_emitter.h"
24 #include "arm_nodes_attr.h"
25 #include "arm_new_nodes.h"
26 #include "arm_map_regs.h"
27 #include "gen_arm_regalloc_if.h"
29 #include "../benode_t.h"
31 #define SNPRINTF_BUF_LEN 128
33 static const arch_env_t *arch_env = NULL;
36 /*************************************************************
38 * (_) | | / _| | | | |
39 * _ __ _ __ _ _ __ | |_| |_ | |__ ___| |_ __ ___ _ __
40 * | '_ \| '__| | '_ \| __| _| | '_ \ / _ \ | '_ \ / _ \ '__|
41 * | |_) | | | | | | | |_| | | | | | __/ | |_) | __/ |
42 * | .__/|_| |_|_| |_|\__|_| |_| |_|\___|_| .__/ \___|_|
45 *************************************************************/
47 int is_immediate_node(ir_node *irn) {
48 if (is_arm_Add_i(irn) || is_arm_Sub_i(irn))
50 if (is_arm_Shr_i(irn) || is_arm_Shr_i(irn) || is_arm_Shl_i(irn))
52 if (is_arm_And_i(irn) || is_arm_Or_i(irn) || is_arm_Eor_i(irn))
54 if (is_arm_Or_Shl_i(irn))
60 * Return a const or symconst as string.
62 static const char *node_const_to_str(ir_node *n) {
63 char buffer[SNPRINTF_BUF_LEN];
64 ir_mode *mode = get_irn_mode(n);
66 if ( is_immediate_node(n) ) {
67 tarval *tv = get_arm_value(n);
68 long longvalue = get_tarval_long(get_arm_value(n));
70 assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
71 snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
72 str = xmalloc(strlen(buffer) * sizeof(char));
76 if ( is_arm_Const(n) || is_arm_Const_Neg(n) ) {
77 tarval *tv = get_arm_value(n);
78 if ( mode_is_int(get_tarval_mode(tv)) ) {
79 long longvalue = get_tarval_long(get_arm_value(n));
81 assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
82 snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
83 str = xmalloc(strlen(buffer) * sizeof(char));
87 return "found something else in arm_const";
89 } else if ( is_arm_SymConst(n) ) {
90 return get_arm_symconst_label(n);
92 assert( 0 && "das ist gar keine Konstante");
99 * Returns node's offset as string.
101 static char *node_offset_to_str(ir_node *n) {
102 char buffer[SNPRINTF_BUF_LEN];
105 ir_op *irn_op = get_irn_op(n);
106 if (irn_op == op_be_StackParam) {
107 entity *ent = be_get_frame_entity(n);
108 offset = get_entity_offset_bytes(ent);
109 } else if (irn_op==op_be_Reload || irn_op==op_be_Spill) {
110 entity * ent = be_get_spill_entity(n);
111 offset = get_entity_offset_bytes(ent);
112 } else if (irn_op==op_be_IncSP) {
113 int offs = be_get_IncSP_offset(n);
114 be_stack_dir_t dir = be_get_IncSP_direction(n);
115 offset = (dir == be_stack_dir_expand) ? -offs : offs;
117 return "node_offset_to_str will fuer diesen Knotentyp noch implementiert werden";
119 snprintf(buffer, SNPRINTF_BUF_LEN, "%d", offset);
120 result = xmalloc(sizeof(char)*(strlen(buffer) + 1));
121 strcpy(result, buffer);
125 /* We always pass the ir_node which is a pointer. */
126 static int arm_get_arg_type(const lc_arg_occ_t *occ) {
127 return lc_arg_type_ptr;
132 * Returns the register at in position pos.
134 static const arch_register_t *get_in_reg(const ir_node *irn, int pos) {
136 const arch_register_t *reg = NULL;
138 assert(get_irn_arity(irn) > pos && "Invalid IN position");
140 /* The out register of the operator at position pos is the
141 in register we need. */
142 op = get_irn_n(irn, pos);
144 reg = arch_get_irn_register(arch_env, op);
146 /* ONLY TEMPORARY WORK-AROUND */
148 // printf("FIXME\n");
149 // reg = &arm_general_purpose_regs[REG_MURX];
152 assert(reg && "no in register found");
157 * Returns the register at out position pos.
159 static const arch_register_t *get_out_reg(const ir_node *irn, int pos) {
161 const arch_register_t *reg = NULL;
163 assert(get_irn_n_edges(irn) > pos && "Invalid OUT position");
165 /* 1st case: irn is not of mode_T, so it has only */
166 /* one OUT register -> good */
167 /* 2nd case: irn is of mode_T -> collect all Projs and ask the */
168 /* Proj with the corresponding projnum for the register */
170 if (get_irn_mode(irn) != mode_T) {
171 reg = arch_get_irn_register(arch_env, irn);
173 else if (is_arm_irn(irn)) {
174 reg = get_arm_out_reg(irn, pos);
177 const ir_edge_t *edge;
179 foreach_out_edge(irn, edge) {
180 proj = get_edge_src_irn(edge);
181 assert(is_Proj(proj) && "non-Proj from mode_T node");
182 if (get_Proj_proj(proj) == pos) {
183 reg = arch_get_irn_register(arch_env, proj);
189 assert(reg && "no out register found");
194 * Returns the number of the in register at position pos.
196 int get_arm_reg_nr(ir_node *irn, int pos, int in_out) {
197 const arch_register_t *reg;
200 reg = get_in_reg(irn, pos);
203 reg = get_out_reg(irn, pos);
206 return arch_register_get_index(reg);
210 * Returns the name of the in register at position pos.
212 const char *get_arm_reg_name(ir_node *irn, int pos, int in_out) {
213 const arch_register_t *reg;
216 reg = get_in_reg(irn, pos);
219 reg = get_out_reg(irn, pos);
222 return arch_register_get_name(reg);
226 * Get the register name for a node.
228 static int arm_get_reg_name(lc_appendable_t *app,
229 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
232 ir_node *X = arg->v_ptr;
233 int nr = occ->width - 1;
236 return lc_appendable_snadd(app, "(null)", 6);
238 if (occ->conversion == 'S') {
239 buf = get_arm_reg_name(X, nr, 1);
242 buf = get_arm_reg_name(X, nr, 0);
245 lc_appendable_chadd(app, '%');
246 return lc_appendable_snadd(app, buf, strlen(buf));
250 * Returns the tarval or offset of an arm node as a string.
252 static int arm_const_to_str(lc_appendable_t *app,
253 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
256 ir_node *X = arg->v_ptr;
259 return lc_appendable_snadd(app, "(null)", 6);
261 if (occ->conversion == 'C') {
262 buf = node_const_to_str(X);
265 buf = node_offset_to_str(X);
268 return lc_appendable_snadd(app, buf, strlen(buf));
272 * Determines the SSE suffix depending on the mode.
274 static int arm_get_mode_suffix(lc_appendable_t *app,
275 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
277 ir_node *X = arg->v_ptr;
280 return lc_appendable_snadd(app, "(null)", 6);
282 if (get_mode_size_bits(get_irn_mode(X)) == 32)
283 return lc_appendable_chadd(app, 's');
285 return lc_appendable_chadd(app, 'd');
289 * Return the arm printf arg environment.
290 * We use the firm environment with some additional handlers.
292 const lc_arg_env_t *arm_get_arg_env(void) {
293 static lc_arg_env_t *env = NULL;
295 static const lc_arg_handler_t arm_reg_handler = { arm_get_arg_type, arm_get_reg_name };
296 static const lc_arg_handler_t arm_const_handler = { arm_get_arg_type, arm_const_to_str };
297 static const lc_arg_handler_t arm_mode_handler = { arm_get_arg_type, arm_get_mode_suffix };
300 /* extend the firm printer */
301 env = firm_get_arg_env();
304 lc_arg_register(env, "arm:sreg", 'S', &arm_reg_handler);
305 lc_arg_register(env, "arm:dreg", 'D', &arm_reg_handler);
306 lc_arg_register(env, "arm:cnst", 'C', &arm_const_handler);
307 lc_arg_register(env, "arm:offs", 'O', &arm_const_handler);
308 lc_arg_register(env, "arm:mode", 'M', &arm_mode_handler);
315 * Formated print of commands and comments.
317 static void arm_fprintf_format(FILE *F, char *cmd_buf, char *cmnt_buf, ir_node *irn) {
318 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
322 * Add a number to a prefix. This number will not be used a second time.
324 static char *get_unique_label(char *buf, size_t buflen, const char *prefix) {
325 static unsigned long id = 0;
326 snprintf(buf, buflen, "%s%lu", prefix, ++id);
332 * Returns the target label for a control flow node.
334 static char *get_cfop_target(const ir_node *irn, char *buf) {
335 ir_node *bl = get_irn_link(irn);
337 snprintf(buf, SNPRINTF_BUF_LEN, "BLOCK_%ld", get_irn_node_nr(bl));
341 /************************************************************************/
343 /************************************************************************/
345 static void emit_arm_SymConst(ir_node *irn, void *env) {
346 arm_emit_env_t *emit_env = env;
347 FILE *out = emit_env->out;
348 char buffer1[SNPRINTF_BUF_LEN];
349 char *skip_label = get_unique_label(buffer1, SNPRINTF_BUF_LEN, ".L");
350 char buffer2[SNPRINTF_BUF_LEN];
351 char *indi_label = get_unique_label(buffer2, SNPRINTF_BUF_LEN, ".L");
352 fprintf( out, "\tB %s\t\t\t\t\t/* start of indirect SymConst */\n", skip_label );
353 fprintf( out, "\t.align 2\n" );
354 fprintf( out, "%s:\n", indi_label );
355 lc_efprintf(arm_get_arg_env(), out, "\t.word\t%C\n", irn);
356 fprintf( out, "\t.align 2\n" );
357 fprintf( out, "%s:\n", skip_label );
358 lc_efprintf(arm_get_arg_env(), out, "\tLDR %1D, %s\t\t\t/* end of indirect SymConst */\n", irn, indi_label);
361 static void emit_arm_CondJmp(ir_node *irn, void *env) {
362 arm_emit_env_t *emit_env = env;
363 FILE *out = emit_env->out;
364 const ir_edge_t *edge;
365 ir_node *true_block = NULL;
366 ir_node *false_block = NULL;
367 ir_node *op1 = get_irn_n(irn, 0);
368 ir_mode *opmode = get_irn_mode(op1);
370 int proj_num = get_arm_proj_num(irn);
371 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
374 foreach_out_edge(irn, edge) {
375 ir_node* proj = get_edge_src_irn(edge);
376 long nr = get_Proj_proj(proj);
377 ir_node *block = get_irn_link(proj);
378 if ( nr == pn_Cond_true) {
380 } else if (nr == pn_Cond_false) {
383 assert(0 && "tertium non datur! (CondJmp)");
387 if (proj_num == pn_Cmp_False) {
388 fprintf(out, "\tB BLOCK_%d\t\t\t/* false case */\n", get_irn_node_nr(false_block));
389 } else if (proj_num == pn_Cmp_True) {
390 fprintf(out, "\tB BLOCK_%d\t\t\t/* true case */\n", get_irn_node_nr(true_block));
392 if (mode_is_float(opmode)) {
393 suffix = "ICHWILLIMPLEMENTIERTWERDEN";
395 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FCMP %1S, %2S", irn, irn);
396 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> FCPSR */", irn, irn );
397 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
399 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FMSTAT", irn, irn);
400 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* FCSPR -> CPSR */");
401 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
403 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
404 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
405 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
407 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
408 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
409 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
412 case pn_Cmp_Eq: suffix = "EQ"; break;
413 case pn_Cmp_Lt: suffix = "LT"; break;
414 case pn_Cmp_Le: suffix = "LE"; break;
415 case pn_Cmp_Gt: suffix = "GT"; break;
416 case pn_Cmp_Ge: suffix = "GE"; break;
417 case pn_Cmp_Lg: suffix = "NE"; break;
418 case pn_Cmp_Leg: suffix = "AL"; break;
419 default: assert(0 && "komische Dinge geschehen");
422 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, %2S", irn, irn);
423 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> CPSR */", irn, irn );
424 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
426 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
427 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
428 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
430 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
431 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
432 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
437 static void emit_arm_CopyB(ir_node *irn, void *env) {
438 arm_emit_env_t *emit_env = env;
439 FILE *out = emit_env->out;
440 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
441 unsigned int size = get_tarval_long(get_arm_value(irn));
442 const lc_arg_env_t *arg_env = arm_get_arg_env();
444 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);
446 assert ( size > 0 && "CopyB needs size > 0" );
454 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, [%2S, #0]!", irn);
455 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
456 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STR %%r12, [%1S, #0]!", irn);
457 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
460 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S}", irn, irn);
461 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
462 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S}", irn, irn);
463 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
466 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S}", irn, irn, irn);
467 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
468 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S}", irn, irn, irn);
469 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
474 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
475 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
476 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
477 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
482 static void emit_arm_SwitchJmp(ir_node *irn, void *env) {
483 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
484 const ir_edge_t *edge;
486 arm_emit_env_t *emit_env = env;
487 FILE *out = emit_env->out;
492 int default_block_num;
494 block_nr = get_irn_node_nr(irn);
495 n_projs = get_arm_n_projs(irn);
497 projs = xcalloc(n_projs , sizeof(ir_node*));
499 foreach_out_edge(irn, edge) {
500 proj = get_edge_src_irn(edge);
501 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
503 if (get_Proj_proj(proj) == get_arm_default_proj_num(irn))
504 default_block_num = get_irn_node_nr(get_irn_link(proj));
506 projs[get_Proj_proj(proj)] = proj;
509 // CMP %1S, n_projs - 1
514 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, #%u", irn, n_projs - 1);
515 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
516 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
518 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "BHI BLOCK_%d", default_block_num);
519 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
520 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
523 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, TABLE_%d_START", block_nr);
524 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
525 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
527 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %%r12, %%r12, %1S, LSL #2", irn);
528 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
529 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
531 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r15, [%%r12, #0]");
532 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
533 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
535 // LDR %r12, .TABLE_X_START
536 // ADD %r12, %r12, [%1S, LSL #2]
539 fprintf(out, "TABLE_%d_START:\n\t.word\tTABLE_%d\n", block_nr, block_nr);
540 fprintf(out, "\t.align 2\n");
541 fprintf(out, "TABLE_%d:\n", block_nr);
544 for ( i=0; i<n_projs; i++) {
548 block = get_irn_link(proj);
550 block = get_irn_link(projs[get_arm_default_proj_num(irn)]);
552 fprintf(out, "\t.word\tBLOCK_%d\n",get_irn_node_nr(block));
554 fprintf(out, "\t.align 2\n");
559 /************************************************************************/
561 /************************************************************************/
563 static void emit_be_Call(ir_node *irn, void *env) {
564 arm_emit_env_t *emit_env = env;
565 FILE *out = emit_env->out;
566 entity *target_entity = be_Call_get_entity(irn);
567 const char *target_name = get_entity_name(target_entity);
568 fprintf(out, "\tBL %s\t\t\t\t/* Call */\n", target_name);
571 static void emit_be_IncSP(const ir_node *irn, arm_emit_env_t *emit_env) {
572 FILE *F = emit_env->out;
573 unsigned offs = be_get_IncSP_offset(irn);
575 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
576 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %1D, %1S, #%O", irn, irn, irn );
577 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* IncSP(%O) */", irn);
578 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
580 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
581 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "");
582 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* omitted IncSP(%O) */", irn);
583 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
587 // void emit_be_AddSP(const ir_node *irn, arm_emit_env_t *emit_env) {
588 // FILE *F = emit_env->out;
589 // char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
590 // lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %1D, %1S, %2S", irn, irn, irn );
591 // lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* AddSP(%2S) */", irn);
592 // lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
595 static void emit_be_Copy(const ir_node *irn, arm_emit_env_t *emit_env) {
596 FILE *F = emit_env->out;
597 ir_mode *mode = get_irn_mode(irn);
598 assert( (mode != mode_E) && "IEEE Extended FP not supported");
600 if (get_in_reg(irn, 0) == get_out_reg(irn, 0)) {
601 char cmd_buf[256], cmnt_buf[256];
602 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "");
603 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* omitted Copy: %1S -> %1D */", irn, irn);
604 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
608 if (mode == mode_F) {
609 char cmd_buf[256], cmnt_buf[256];
610 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYS %1D, %1S", irn, irn);
611 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
612 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
613 } else if (mode == mode_D) {
614 char cmd_buf[256], cmnt_buf[256];
615 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYD %1D, %1S", irn, irn);
616 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
617 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
618 } else if (mode_is_numP(mode)) {
619 char cmd_buf[256], cmnt_buf[256];
620 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "MOV %1D, %1S", irn, irn);
621 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
622 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
624 assert(0 && "move not supported for this mode");
626 // emit_arm_Copy(irn, emit_env);
629 static void emit_be_Spill(const ir_node *irn, arm_emit_env_t *emit_env) {
630 FILE *F = emit_env->out;
631 ir_mode *mode = get_irn_mode(irn);
632 assert( (mode != mode_E) && "IEEE Extended FP not supported");
633 if (mode_is_dataM(mode)) {
634 char cmd_buf[256], cmnt_buf[256];
635 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "STR %2S, [%1S, #%O]", irn, irn, irn );
636 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Spill(%2S) -> (%1S) */", irn, irn);
637 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
639 assert(0 && "spill not supported for this mode");
643 static void emit_be_Reload(const ir_node* irn, arm_emit_env_t *emit_env) {
644 FILE *F = emit_env->out;
645 ir_mode *mode = get_irn_mode(irn);
646 assert( (mode != mode_E) && "IEEE Extended FP not supported");
647 if (mode_is_dataM(mode)) {
648 char cmd_buf[256], cmnt_buf[256];
649 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
650 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Reload(%1S) -> (%1D) */", irn, irn);
651 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
653 assert(0 && "reload not supported for this mode");
657 static void emit_be_Perm(const ir_node* irn, arm_emit_env_t *emit_env) {
658 FILE *F = emit_env->out;
659 ir_mode *mode = get_irn_mode(irn);
660 assert( (mode != mode_E) && "IEEE Extended FP not supported");
661 lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* begin Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
662 lc_efprintf(arm_get_arg_env(), F, "\tEOR %2S, %1S, %2S\n", irn, irn, irn);
663 lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* end Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
666 static void emit_be_StackParam(const ir_node *irn, arm_emit_env_t *emit_env) {
667 FILE *F = emit_env->out;
668 ir_mode *mode = get_irn_mode(irn);
669 char cmd_buf[256], cmnt_buf[256];
670 assert( (mode != mode_E) && "IEEE Extended FP not supported");
672 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
673 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* StackParam: (%1S + %O) -> %1D */",irn , irn, irn, get_irn_n(irn, 0));
674 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
677 /************************************************************************/
679 /************************************************************************/
681 static void emit_Jmp(ir_node *irn, void *env) {
682 arm_emit_env_t *emit_env = env;
683 FILE *out = emit_env->out;
684 const ir_edge_t *edge = get_irn_out_edge_first(irn);
685 ir_node *target_block = get_edge_src_irn(edge);
686 fprintf(out, "\tB BLOCK_%d\t\t\t/* unconditional Jump */\n", get_irn_node_nr(target_block));
689 static void emit_Proj(ir_node *irn, void *env) {
695 /***********************************************************************************
698 * _ __ ___ __ _ _ _ __ | |_ _ __ __ _ _ __ ___ _____ _____ _ __| | __
699 * | '_ ` _ \ / _` | | '_ \ | _| '__/ _` | '_ ` _ \ / _ \ \ /\ / / _ \| '__| |/ /
700 * | | | | | | (_| | | | | | | | | | | (_| | | | | | | __/\ V V / (_) | | | <
701 * |_| |_| |_|\__,_|_|_| |_| |_| |_| \__,_|_| |_| |_|\___| \_/\_/ \___/|_| |_|\_\
703 ***********************************************************************************/
706 * Enters the emitter functions for handled nodes into the generic
707 * pointer of an opcode.
709 static void arm_register_emitters(void) {
711 #define ARM_EMIT(a) op_arm_##a->ops.generic = (op_func)emit_arm_##a
712 #define EMIT(a) op_##a->ops.generic = (op_func)emit_##a
713 #define BE_EMIT(a) op_be_##a->ops.generic = (op_func)emit_be_##a
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);
755 * Emits code for a node.
757 static void arm_emit_node(const ir_node *irn, void *env) {
758 arm_emit_env_t *emit_env = env;
759 firm_dbg_module_t *mod = emit_env->mod;
760 FILE *F = emit_env->out;
761 ir_op *op = get_irn_op(irn);
763 DBG((mod, LEVEL_1, "emitting code for %+F\n", irn));
765 if (op->ops.generic) {
766 void (*emit)(const ir_node *, void *) = (void (*)(const ir_node *, void *))op->ops.generic;
770 ir_fprintf(F, "\t\t\t\t\t/* %+F */\n", irn);
775 * Walks over the nodes in a block connected by scheduling edges
776 * and emits code for each node.
778 void arm_gen_block(ir_node *block, void *env) {
781 if (! is_Block(block))
784 fprintf(((arm_emit_env_t *)env)->out, "BLOCK_%ld:\n", get_irn_node_nr(block));
785 sched_foreach(block, irn) {
786 arm_emit_node(irn, env);
792 * Emits code for function start.
794 void arm_emit_start(FILE *F, ir_graph *irg) {
795 const char *irg_name = get_entity_name(get_irg_entity(irg));
796 fprintf(F, "\t.text\n");
797 fprintf(F, "\t.align 2\n");
798 fprintf(F, "\t.global %s\n", irg_name);
799 fprintf(F, "%s:\n", irg_name);
803 * Emits code for function end
805 void arm_emit_end(FILE *F, ir_graph *irg) {
806 const char *irg_name = get_entity_name(get_irg_entity(irg));
810 * Sets labels for control flow nodes (jump target)
811 * TODO: Jump optimization
813 void arm_gen_labels(ir_node *block, void *env) {
815 int n = get_Block_n_cfgpreds(block);
817 for (n--; n >= 0; n--) {
818 pred = get_Block_cfgpred(block, n);
819 set_irn_link(pred, block);
827 void arm_gen_routine(FILE *F, ir_graph *irg, const arm_code_gen_t *cg) {
828 arm_emit_env_t emit_env;
831 emit_env.arch_env = cg->arch_env;
833 FIRM_DBG_REGISTER(emit_env.mod, "firm.be.arm.emit");
835 /* set the global arch_env (needed by print hooks) */
836 arch_env = cg->arch_env;
838 arm_register_emitters();
840 arm_emit_start(F, irg);
841 irg_block_walk_graph(irg, arm_gen_labels, NULL, &emit_env);
842 irg_walk_blkwise_graph(irg, NULL, arm_gen_block, &emit_env);
843 arm_emit_end(F, irg);