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];
65 if ( is_immediate_node(n) ) {
66 long longvalue = get_tarval_long(get_arm_value(n));
68 assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
69 snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
70 str = xmalloc(strlen(buffer) * sizeof(char));
74 if ( is_arm_Const(n) || is_arm_Const_Neg(n) ) {
75 tarval *tv = get_arm_value(n);
76 if ( mode_is_int(get_tarval_mode(tv)) ) {
77 long longvalue = get_tarval_long(get_arm_value(n));
79 assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
80 snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
81 str = xmalloc(strlen(buffer) * sizeof(char));
85 return "found something else in arm_const";
87 } else if ( is_arm_SymConst(n) ) {
88 return get_arm_symconst_label(n);
90 assert( 0 && "das ist gar keine Konstante");
97 * Returns node's offset as string.
99 static char *node_offset_to_str(ir_node *n) {
100 char buffer[SNPRINTF_BUF_LEN];
103 ir_op *irn_op = get_irn_op(n);
104 if (irn_op == op_be_StackParam) {
105 entity *ent = be_get_frame_entity(n);
106 offset = get_entity_offset_bytes(ent);
107 } else if (irn_op==op_be_Reload || irn_op==op_be_Spill) {
108 entity * ent = be_get_spill_entity(n);
109 offset = get_entity_offset_bytes(ent);
110 } else if (irn_op==op_be_IncSP) {
111 int offs = be_get_IncSP_offset(n);
112 be_stack_dir_t dir = be_get_IncSP_direction(n);
113 offset = (dir == be_stack_dir_expand) ? -offs : offs;
115 return "node_offset_to_str will fuer diesen Knotentyp noch implementiert werden";
117 snprintf(buffer, SNPRINTF_BUF_LEN, "%d", offset);
118 result = xmalloc(sizeof(char)*(strlen(buffer) + 1));
119 strcpy(result, buffer);
123 /* We always pass the ir_node which is a pointer. */
124 static int arm_get_arg_type(const lc_arg_occ_t *occ) {
125 return lc_arg_type_ptr;
130 * Returns the register at in position pos.
132 static const arch_register_t *get_in_reg(const ir_node *irn, int pos) {
134 const arch_register_t *reg = NULL;
136 assert(get_irn_arity(irn) > pos && "Invalid IN position");
138 /* The out register of the operator at position pos is the
139 in register we need. */
140 op = get_irn_n(irn, pos);
142 reg = arch_get_irn_register(arch_env, op);
144 /* ONLY TEMPORARY WORK-AROUND */
146 // printf("FIXME\n");
147 // reg = &arm_general_purpose_regs[REG_MURX];
150 assert(reg && "no in register found");
155 * Returns the register at out position pos.
157 static const arch_register_t *get_out_reg(const ir_node *irn, int pos) {
159 const arch_register_t *reg = NULL;
161 assert(get_irn_n_edges(irn) > pos && "Invalid OUT position");
163 /* 1st case: irn is not of mode_T, so it has only */
164 /* one OUT register -> good */
165 /* 2nd case: irn is of mode_T -> collect all Projs and ask the */
166 /* Proj with the corresponding projnum for the register */
168 if (get_irn_mode(irn) != mode_T) {
169 reg = arch_get_irn_register(arch_env, irn);
171 else if (is_arm_irn(irn)) {
172 reg = get_arm_out_reg(irn, pos);
175 const ir_edge_t *edge;
177 foreach_out_edge(irn, edge) {
178 proj = get_edge_src_irn(edge);
179 assert(is_Proj(proj) && "non-Proj from mode_T node");
180 if (get_Proj_proj(proj) == pos) {
181 reg = arch_get_irn_register(arch_env, proj);
187 assert(reg && "no out register found");
192 * Returns the number of the in register at position pos.
194 int get_arm_reg_nr(ir_node *irn, int pos, int in_out) {
195 const arch_register_t *reg;
198 reg = get_in_reg(irn, pos);
201 reg = get_out_reg(irn, pos);
204 return arch_register_get_index(reg);
208 * Returns the name of the in register at position pos.
210 const char *get_arm_reg_name(ir_node *irn, int pos, int in_out) {
211 const arch_register_t *reg;
214 reg = get_in_reg(irn, pos);
217 reg = get_out_reg(irn, pos);
220 return arch_register_get_name(reg);
224 * Get the register name for a node.
226 static int arm_get_reg_name(lc_appendable_t *app,
227 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
230 ir_node *X = arg->v_ptr;
231 int nr = occ->width - 1;
234 return lc_appendable_snadd(app, "(null)", 6);
236 if (occ->conversion == 'S') {
237 buf = get_arm_reg_name(X, nr, 1);
240 buf = get_arm_reg_name(X, nr, 0);
243 lc_appendable_chadd(app, '%');
244 return lc_appendable_snadd(app, buf, strlen(buf));
248 * Returns the tarval or offset of an arm node as a string.
250 static int arm_const_to_str(lc_appendable_t *app,
251 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
254 ir_node *X = arg->v_ptr;
257 return lc_appendable_snadd(app, "(null)", 6);
259 if (occ->conversion == 'C') {
260 buf = node_const_to_str(X);
263 buf = node_offset_to_str(X);
266 return lc_appendable_snadd(app, buf, strlen(buf));
270 * Determines the SSE suffix depending on the mode.
272 static int arm_get_mode_suffix(lc_appendable_t *app,
273 const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
275 ir_node *X = arg->v_ptr;
278 return lc_appendable_snadd(app, "(null)", 6);
280 if (get_mode_size_bits(get_irn_mode(X)) == 32)
281 return lc_appendable_chadd(app, 's');
283 return lc_appendable_chadd(app, 'd');
287 * Return the arm printf arg environment.
288 * We use the firm environment with some additional handlers.
290 const lc_arg_env_t *arm_get_arg_env(void) {
291 static lc_arg_env_t *env = NULL;
293 static const lc_arg_handler_t arm_reg_handler = { arm_get_arg_type, arm_get_reg_name };
294 static const lc_arg_handler_t arm_const_handler = { arm_get_arg_type, arm_const_to_str };
295 static const lc_arg_handler_t arm_mode_handler = { arm_get_arg_type, arm_get_mode_suffix };
298 /* extend the firm printer */
299 env = firm_get_arg_env();
302 lc_arg_register(env, "arm:sreg", 'S', &arm_reg_handler);
303 lc_arg_register(env, "arm:dreg", 'D', &arm_reg_handler);
304 lc_arg_register(env, "arm:cnst", 'C', &arm_const_handler);
305 lc_arg_register(env, "arm:offs", 'O', &arm_const_handler);
306 lc_arg_register(env, "arm:mode", 'M', &arm_mode_handler);
313 * Formated print of commands and comments.
315 static void arm_fprintf_format(FILE *F, char *cmd_buf, char *cmnt_buf, ir_node *irn) {
316 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
320 * Add a number to a prefix. This number will not be used a second time.
322 static char *get_unique_label(char *buf, size_t buflen, const char *prefix) {
323 static unsigned long id = 0;
324 snprintf(buf, buflen, "%s%lu", prefix, ++id);
330 * Returns the target label for a control flow node.
332 static char *get_cfop_target(const ir_node *irn, char *buf) {
333 ir_node *bl = get_irn_link(irn);
335 snprintf(buf, SNPRINTF_BUF_LEN, "BLOCK_%ld", get_irn_node_nr(bl));
339 /************************************************************************/
341 /************************************************************************/
343 static void emit_arm_SymConst(ir_node *irn, void *env) {
344 arm_emit_env_t *emit_env = env;
345 FILE *out = emit_env->out;
346 char buffer1[SNPRINTF_BUF_LEN];
347 char *skip_label = get_unique_label(buffer1, SNPRINTF_BUF_LEN, ".L");
348 char buffer2[SNPRINTF_BUF_LEN];
349 char *indi_label = get_unique_label(buffer2, SNPRINTF_BUF_LEN, ".L");
350 fprintf( out, "\tB %s\t\t\t\t\t/* start of indirect SymConst */\n", skip_label );
351 fprintf( out, "\t.align 2\n" );
352 fprintf( out, "%s:\n", indi_label );
353 lc_efprintf(arm_get_arg_env(), out, "\t.word\t%C\n", irn);
354 fprintf( out, "\t.align 2\n" );
355 fprintf( out, "%s:\n", skip_label );
356 lc_efprintf(arm_get_arg_env(), out, "\tLDR %1D, %s\t\t\t/* end of indirect SymConst */\n", irn, indi_label);
359 static void emit_arm_CondJmp(ir_node *irn, void *env) {
360 arm_emit_env_t *emit_env = env;
361 FILE *out = emit_env->out;
362 const ir_edge_t *edge;
363 ir_node *true_block = NULL;
364 ir_node *false_block = NULL;
365 ir_node *op1 = get_irn_n(irn, 0);
366 ir_mode *opmode = get_irn_mode(op1);
368 int proj_num = get_arm_proj_num(irn);
369 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
372 foreach_out_edge(irn, edge) {
373 ir_node* proj = get_edge_src_irn(edge);
374 long nr = get_Proj_proj(proj);
375 ir_node *block = get_irn_link(proj);
376 if ( nr == pn_Cond_true) {
378 } else if (nr == pn_Cond_false) {
381 assert(0 && "tertium non datur! (CondJmp)");
385 if (proj_num == pn_Cmp_False) {
386 fprintf(out, "\tB BLOCK_%ld\t\t\t/* false case */\n", get_irn_node_nr(false_block));
387 } else if (proj_num == pn_Cmp_True) {
388 fprintf(out, "\tB BLOCK_%ld\t\t\t/* true case */\n", get_irn_node_nr(true_block));
390 if (mode_is_float(opmode)) {
391 suffix = "ICHWILLIMPLEMENTIERTWERDEN";
393 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FCMP %1S, %2S", irn, irn);
394 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> FCPSR */", irn, irn );
395 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
397 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FMSTAT", irn, irn);
398 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* FCSPR -> CPSR */");
399 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
401 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
402 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
403 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
405 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
406 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
407 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
410 case pn_Cmp_Eq: suffix = "EQ"; break;
411 case pn_Cmp_Lt: suffix = "LT"; break;
412 case pn_Cmp_Le: suffix = "LE"; break;
413 case pn_Cmp_Gt: suffix = "GT"; break;
414 case pn_Cmp_Ge: suffix = "GE"; break;
415 case pn_Cmp_Lg: suffix = "NE"; break;
416 case pn_Cmp_Leg: suffix = "AL"; break;
417 default: assert(0 && "komische Dinge geschehen");
420 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, %2S", irn, irn);
421 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> CPSR */", irn, irn );
422 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
424 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
425 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
426 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
428 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
429 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
430 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
435 static void emit_arm_CopyB(ir_node *irn, void *env) {
436 arm_emit_env_t *emit_env = env;
437 FILE *out = emit_env->out;
438 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
439 unsigned int size = get_tarval_long(get_arm_value(irn));
440 const lc_arg_env_t *arg_env = arm_get_arg_env();
442 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);
444 assert ( size > 0 && "CopyB needs size > 0" );
452 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, [%2S, #0]!", irn);
453 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
454 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STR %%r12, [%1S, #0]!", irn);
455 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
458 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S}", irn, irn);
459 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
460 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S}", irn, irn);
461 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
464 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S}", irn, irn, irn);
465 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
466 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S}", irn, irn, irn);
467 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
472 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
473 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
474 lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
475 arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
480 static void emit_arm_SwitchJmp(ir_node *irn, void *env) {
481 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
482 const ir_edge_t *edge;
484 arm_emit_env_t *emit_env = env;
485 FILE *out = emit_env->out;
490 int default_block_num;
492 block_nr = get_irn_node_nr(irn);
493 n_projs = get_arm_n_projs(irn);
495 projs = xcalloc(n_projs , sizeof(ir_node*));
497 foreach_out_edge(irn, edge) {
498 proj = get_edge_src_irn(edge);
499 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
501 if (get_Proj_proj(proj) == get_arm_default_proj_num(irn))
502 default_block_num = get_irn_node_nr(get_irn_link(proj));
504 projs[get_Proj_proj(proj)] = proj;
507 // CMP %1S, n_projs - 1
512 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, #%u", irn, n_projs - 1);
513 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
514 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
516 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "BHI BLOCK_%d", default_block_num);
517 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
518 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
521 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, TABLE_%d_START", block_nr);
522 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
523 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
525 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %%r12, %%r12, %1S, LSL #2", irn);
526 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
527 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
529 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r15, [%%r12, #0]");
530 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
531 lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
533 // LDR %r12, .TABLE_X_START
534 // ADD %r12, %r12, [%1S, LSL #2]
537 fprintf(out, "TABLE_%d_START:\n\t.word\tTABLE_%d\n", block_nr, block_nr);
538 fprintf(out, "\t.align 2\n");
539 fprintf(out, "TABLE_%d:\n", block_nr);
542 for ( i=0; i<n_projs; i++) {
546 block = get_irn_link(proj);
548 block = get_irn_link(projs[get_arm_default_proj_num(irn)]);
550 fprintf(out, "\t.word\tBLOCK_%ld\n",get_irn_node_nr(block));
552 fprintf(out, "\t.align 2\n");
557 /************************************************************************/
559 /************************************************************************/
561 static void emit_be_Call(ir_node *irn, void *env) {
562 arm_emit_env_t *emit_env = env;
563 FILE *out = emit_env->out;
564 entity *target_entity = be_Call_get_entity(irn);
565 const char *target_name = get_entity_name(target_entity);
566 fprintf(out, "\tBL %s\t\t\t\t/* Call */\n", target_name);
569 static void emit_be_IncSP(const ir_node *irn, arm_emit_env_t *emit_env) {
570 FILE *F = emit_env->out;
571 unsigned offs = be_get_IncSP_offset(irn);
573 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
574 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %1D, %1S, #%O", irn, irn, irn );
575 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* IncSP(%O) */", irn);
576 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
578 char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
579 lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "");
580 lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* omitted IncSP(%O) */", irn);
581 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
585 // void emit_be_AddSP(const ir_node *irn, arm_emit_env_t *emit_env) {
586 // FILE *F = emit_env->out;
587 // char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
588 // lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %1D, %1S, %2S", irn, irn, irn );
589 // lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* AddSP(%2S) */", irn);
590 // lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
593 static void emit_be_Copy(const ir_node *irn, arm_emit_env_t *emit_env) {
594 FILE *F = emit_env->out;
595 ir_mode *mode = get_irn_mode(irn);
596 assert( (mode != mode_E) && "IEEE Extended FP not supported");
598 if (get_in_reg(irn, 0) == get_out_reg(irn, 0)) {
599 char cmd_buf[256], cmnt_buf[256];
600 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "");
601 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* omitted Copy: %1S -> %1D */", irn, irn);
602 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
606 if (mode == mode_F) {
607 char cmd_buf[256], cmnt_buf[256];
608 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYS %1D, %1S", irn, irn);
609 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
610 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
611 } else if (mode == mode_D) {
612 char cmd_buf[256], cmnt_buf[256];
613 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYD %1D, %1S", irn, irn);
614 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
615 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
616 } else if (mode_is_numP(mode)) {
617 char cmd_buf[256], cmnt_buf[256];
618 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "MOV %1D, %1S", irn, irn);
619 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
620 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
622 assert(0 && "move not supported for this mode");
624 // emit_arm_Copy(irn, emit_env);
627 static void emit_be_Spill(const ir_node *irn, arm_emit_env_t *emit_env) {
628 FILE *F = emit_env->out;
629 ir_mode *mode = get_irn_mode(irn);
630 assert( (mode != mode_E) && "IEEE Extended FP not supported");
631 if (mode_is_dataM(mode)) {
632 char cmd_buf[256], cmnt_buf[256];
633 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "STR %2S, [%1S, #%O]", irn, irn, irn );
634 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Spill(%2S) -> (%1S) */", irn, irn);
635 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
637 assert(0 && "spill not supported for this mode");
641 static void emit_be_Reload(const ir_node* irn, arm_emit_env_t *emit_env) {
642 FILE *F = emit_env->out;
643 ir_mode *mode = get_irn_mode(irn);
644 assert( (mode != mode_E) && "IEEE Extended FP not supported");
645 if (mode_is_dataM(mode)) {
646 char cmd_buf[256], cmnt_buf[256];
647 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
648 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Reload(%1S) -> (%1D) */", irn, irn);
649 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
651 assert(0 && "reload not supported for this mode");
655 static void emit_be_Perm(const ir_node* irn, arm_emit_env_t *emit_env) {
656 FILE *F = emit_env->out;
657 ir_mode *mode = get_irn_mode(irn);
658 assert( (mode != mode_E) && "IEEE Extended FP not supported");
659 lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* begin Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
660 lc_efprintf(arm_get_arg_env(), F, "\tEOR %2S, %1S, %2S\n", irn, irn, irn);
661 lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* end Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
664 static void emit_be_StackParam(const ir_node *irn, arm_emit_env_t *emit_env) {
665 FILE *F = emit_env->out;
666 ir_mode *mode = get_irn_mode(irn);
667 char cmd_buf[256], cmnt_buf[256];
668 assert( (mode != mode_E) && "IEEE Extended FP not supported");
670 lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
671 lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* StackParam: (%1S + %O) -> %1D */",irn , irn, irn, get_irn_n(irn, 0));
672 lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
675 /************************************************************************/
677 /************************************************************************/
679 static void emit_Jmp(ir_node *irn, void *env) {
680 arm_emit_env_t *emit_env = env;
681 FILE *out = emit_env->out;
682 const ir_edge_t *edge = get_irn_out_edge_first(irn);
683 ir_node *target_block = get_edge_src_irn(edge);
684 fprintf(out, "\tB BLOCK_%ld\t\t\t/* unconditional Jump */\n", get_irn_node_nr(target_block));
687 static void emit_Proj(ir_node *irn, void *env) {
693 /***********************************************************************************
696 * _ __ ___ __ _ _ _ __ | |_ _ __ __ _ _ __ ___ _____ _____ _ __| | __
697 * | '_ ` _ \ / _` | | '_ \ | _| '__/ _` | '_ ` _ \ / _ \ \ /\ / / _ \| '__| |/ /
698 * | | | | | | (_| | | | | | | | | | | (_| | | | | | | __/\ V V / (_) | | | <
699 * |_| |_| |_|\__,_|_|_| |_| |_| |_| \__,_|_| |_| |_|\___| \_/\_/ \___/|_| |_|\_\
701 ***********************************************************************************/
704 * Enters the emitter functions for handled nodes into the generic
705 * pointer of an opcode.
707 static void arm_register_emitters(void) {
709 #define ARM_EMIT(a) op_arm_##a->ops.generic = (op_func)emit_arm_##a
710 #define EMIT(a) op_##a->ops.generic = (op_func)emit_##a
711 #define BE_EMIT(a) op_be_##a->ops.generic = (op_func)emit_be_##a
713 /* first clear the generic function pointer for all ops */
714 clear_irp_opcodes_generic_func();
716 /* register all emitter functions defined in spec */
717 arm_register_spec_emitters();
719 /* other emitter functions */
721 // ARM_EMIT(SwitchJmp);
723 // ARM_EMIT(CopyB_i);
753 * Emits code for a node.
755 static void arm_emit_node(const ir_node *irn, void *env) {
756 arm_emit_env_t *emit_env = env;
757 FILE *F = emit_env->out;
758 ir_op *op = get_irn_op(irn);
759 DEBUG_ONLY(firm_dbg_module_t *mod = emit_env->mod;)
761 DBG((mod, LEVEL_1, "emitting code for %+F\n", irn));
763 if (op->ops.generic) {
764 void (*emit)(const ir_node *, void *) = (void (*)(const ir_node *, void *))op->ops.generic;
768 ir_fprintf(F, "\t\t\t\t\t/* %+F */\n", irn);
773 * Walks over the nodes in a block connected by scheduling edges
774 * and emits code for each node.
776 void arm_gen_block(ir_node *block, void *env) {
779 if (! is_Block(block))
782 fprintf(((arm_emit_env_t *)env)->out, "BLOCK_%ld:\n", get_irn_node_nr(block));
783 sched_foreach(block, irn) {
784 arm_emit_node(irn, env);
790 * Emits code for function start.
792 void arm_emit_start(FILE *F, ir_graph *irg) {
793 const char *irg_name = get_entity_name(get_irg_entity(irg));
794 fprintf(F, "\t.text\n");
795 fprintf(F, "\t.align 2\n");
796 fprintf(F, "\t.global %s\n", irg_name);
797 fprintf(F, "%s:\n", irg_name);
801 * Emits code for function end
803 void arm_emit_end(FILE *F, ir_graph *irg) {
807 * Sets labels for control flow nodes (jump target)
808 * TODO: Jump optimization
810 void arm_gen_labels(ir_node *block, void *env) {
812 int n = get_Block_n_cfgpreds(block);
814 for (n--; n >= 0; n--) {
815 pred = get_Block_cfgpred(block, n);
816 set_irn_link(pred, block);
824 void arm_gen_routine(FILE *F, ir_graph *irg, const arm_code_gen_t *cg) {
825 arm_emit_env_t emit_env;
828 emit_env.arch_env = cg->arch_env;
830 FIRM_DBG_REGISTER(emit_env.mod, "firm.be.arm.emit");
832 /* set the global arch_env (needed by print hooks) */
833 arch_env = cg->arch_env;
835 arm_register_emitters();
837 arm_emit_start(F, irg);
838 irg_block_walk_graph(irg, arm_gen_labels, NULL, &emit_env);
839 irg_walk_blkwise_graph(irg, NULL, arm_gen_block, &emit_env);
840 arm_emit_end(F, irg);