1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine, Bytecode Visualisation |
4 +----------------------------------------------------------------------+
5 | Copyright (c) The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | https://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Dmitry Stogov <dmitry@php.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 #include "zend_compile.h"
20 #include "zend_cfg.h"
21 #include "zend_ssa.h"
22 #include "zend_inference.h"
23 #include "zend_func_info.h"
24 #include "zend_call_graph.h"
25 #include "zend_dump.h"
26
zend_dump_ht(HashTable * ht)27 void zend_dump_ht(HashTable *ht)
28 {
29 zend_ulong index;
30 zend_string *key;
31 zval *val;
32 int first = 1;
33
34 ZEND_HASH_FOREACH_KEY_VAL(ht, index, key, val) {
35 if (first) {
36 first = 0;
37 } else {
38 fprintf(stderr, ", ");
39 }
40 if (key) {
41 fprintf(stderr, "\"%s\"", ZSTR_VAL(key));
42 } else {
43 fprintf(stderr, ZEND_LONG_FMT, index);
44 }
45 fprintf(stderr, " =>");
46 zend_dump_const(val);
47 } ZEND_HASH_FOREACH_END();
48 }
49
zend_dump_const(const zval * zv)50 void zend_dump_const(const zval *zv)
51 {
52 switch (Z_TYPE_P(zv)) {
53 case IS_NULL:
54 fprintf(stderr, " null");
55 break;
56 case IS_FALSE:
57 fprintf(stderr, " bool(false)");
58 break;
59 case IS_TRUE:
60 fprintf(stderr, " bool(true)");
61 break;
62 case IS_LONG:
63 fprintf(stderr, " int(" ZEND_LONG_FMT ")", Z_LVAL_P(zv));
64 break;
65 case IS_DOUBLE:
66 fprintf(stderr, " float(%g)", Z_DVAL_P(zv));
67 break;
68 case IS_STRING:
69 fprintf(stderr, " string(\"%s\")", Z_STRVAL_P(zv));
70 break;
71 case IS_ARRAY:
72 fprintf(stderr, " array(...)");
73 break;
74 default:
75 fprintf(stderr, " zval(type=%d)", Z_TYPE_P(zv));
76 break;
77 }
78 }
79
zend_dump_class_fetch_type(uint32_t fetch_type)80 static void zend_dump_class_fetch_type(uint32_t fetch_type)
81 {
82 switch (fetch_type & ZEND_FETCH_CLASS_MASK) {
83 case ZEND_FETCH_CLASS_SELF:
84 fprintf(stderr, " (self)");
85 break;
86 case ZEND_FETCH_CLASS_PARENT:
87 fprintf(stderr, " (parent)");
88 break;
89 case ZEND_FETCH_CLASS_STATIC:
90 fprintf(stderr, " (static)");
91 break;
92 case ZEND_FETCH_CLASS_AUTO:
93 fprintf(stderr, " (auto)");
94 break;
95 case ZEND_FETCH_CLASS_INTERFACE:
96 fprintf(stderr, " (interface)");
97 break;
98 case ZEND_FETCH_CLASS_TRAIT:
99 fprintf(stderr, " (trait)");
100 break;
101 }
102 if (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) {
103 fprintf(stderr, " (no-autoload)");
104 }
105 if (fetch_type & ZEND_FETCH_CLASS_SILENT) {
106 fprintf(stderr, " (silent)");
107 }
108 if (fetch_type & ZEND_FETCH_CLASS_EXCEPTION) {
109 fprintf(stderr, " (exception)");
110 }
111 }
112
zend_dump_unused_op(const zend_op * opline,znode_op op,uint32_t flags)113 static void zend_dump_unused_op(const zend_op *opline, znode_op op, uint32_t flags) {
114 if (ZEND_VM_OP_NUM == (flags & ZEND_VM_OP_MASK)) {
115 fprintf(stderr, " %u", op.num);
116 } else if (ZEND_VM_OP_TRY_CATCH == (flags & ZEND_VM_OP_MASK)) {
117 if (op.num != (uint32_t)-1) {
118 fprintf(stderr, " try-catch(%u)", op.num);
119 }
120 } else if (ZEND_VM_OP_THIS == (flags & ZEND_VM_OP_MASK)) {
121 fprintf(stderr, " THIS");
122 } else if (ZEND_VM_OP_NEXT == (flags & ZEND_VM_OP_MASK)) {
123 fprintf(stderr, " NEXT");
124 } else if (ZEND_VM_OP_CLASS_FETCH == (flags & ZEND_VM_OP_MASK)) {
125 zend_dump_class_fetch_type(op.num);
126 } else if (ZEND_VM_OP_CONSTRUCTOR == (flags & ZEND_VM_OP_MASK)) {
127 fprintf(stderr, " CONSTRUCTOR");
128 } else if (ZEND_VM_OP_CONST_FETCH == (flags & ZEND_VM_OP_MASK)) {
129 if (op.num & IS_CONSTANT_UNQUALIFIED_IN_NAMESPACE) {
130 fprintf(stderr, " (unqualified-in-namespace)");
131 }
132 }
133 }
134
zend_dump_var(const zend_op_array * op_array,zend_uchar var_type,int var_num)135 ZEND_API void zend_dump_var(const zend_op_array *op_array, zend_uchar var_type, int var_num)
136 {
137 if (var_type == IS_CV && var_num < op_array->last_var) {
138 fprintf(stderr, "CV%d($%s)", var_num, op_array->vars[var_num]->val);
139 } else if (var_type == IS_VAR) {
140 fprintf(stderr, "V%d", var_num);
141 } else if ((var_type & (IS_VAR|IS_TMP_VAR)) == IS_TMP_VAR) {
142 fprintf(stderr, "T%d", var_num);
143 } else {
144 fprintf(stderr, "X%d", var_num);
145 }
146 }
147
zend_dump_range(const zend_ssa_range * r)148 static void zend_dump_range(const zend_ssa_range *r)
149 {
150 if (r->underflow && r->overflow) {
151 return;
152 }
153 fprintf(stderr, " RANGE[");
154 if (r->underflow) {
155 fprintf(stderr, "--..");
156 } else if (r->min == ZEND_LONG_MIN) {
157 fprintf(stderr, "MIN..");
158 } else {
159 fprintf(stderr, ZEND_LONG_FMT "..", r->min);
160 }
161 if (r->overflow) {
162 fprintf(stderr, "++]");
163 } else if (r->max == ZEND_LONG_MAX) {
164 fprintf(stderr, "MAX]");
165 } else {
166 fprintf(stderr, ZEND_LONG_FMT "]", r->max);
167 }
168 }
169
zend_dump_type_info(uint32_t info,zend_class_entry * ce,int is_instanceof,uint32_t dump_flags)170 static void zend_dump_type_info(uint32_t info, zend_class_entry *ce, int is_instanceof, uint32_t dump_flags)
171 {
172 int first = 1;
173
174 fprintf(stderr, " [");
175 if (info & MAY_BE_GUARD) {
176 fprintf(stderr, "!");
177 }
178 if (info & MAY_BE_UNDEF) {
179 if (first) first = 0; else fprintf(stderr, ", ");
180 fprintf(stderr, "undef");
181 }
182 if (info & MAY_BE_INDIRECT) {
183 if (first) first = 0; else fprintf(stderr, ", ");
184 fprintf(stderr, "ind");
185 }
186 if (info & MAY_BE_REF) {
187 if (first) first = 0; else fprintf(stderr, ", ");
188 fprintf(stderr, "ref");
189 }
190 if (dump_flags & ZEND_DUMP_RC_INFERENCE) {
191 if (info & MAY_BE_RC1) {
192 if (first) first = 0; else fprintf(stderr, ", ");
193 fprintf(stderr, "rc1");
194 }
195 if (info & MAY_BE_RCN) {
196 if (first) first = 0; else fprintf(stderr, ", ");
197 fprintf(stderr, "rcn");
198 }
199 }
200 if (info & MAY_BE_CLASS) {
201 if (first) first = 0; else fprintf(stderr, ", ");
202 fprintf(stderr, "class");
203 if (ce) {
204 if (is_instanceof) {
205 fprintf(stderr, " (instanceof %s)", ce->name->val);
206 } else {
207 fprintf(stderr, " (%s)", ce->name->val);
208 }
209 }
210 } else if ((info & MAY_BE_ANY) == MAY_BE_ANY) {
211 if (first) first = 0; else fprintf(stderr, ", ");
212 fprintf(stderr, "any");
213 } else {
214 if (info & MAY_BE_NULL) {
215 if (first) first = 0; else fprintf(stderr, ", ");
216 fprintf(stderr, "null");
217 }
218 if ((info & MAY_BE_FALSE) && (info & MAY_BE_TRUE)) {
219 if (first) first = 0; else fprintf(stderr, ", ");
220 fprintf(stderr, "bool");
221 } else if (info & MAY_BE_FALSE) {
222 if (first) first = 0; else fprintf(stderr, ", ");
223 fprintf(stderr, "false");
224 } else if (info & MAY_BE_TRUE) {
225 if (first) first = 0; else fprintf(stderr, ", ");
226 fprintf(stderr, "true");
227 }
228 if (info & MAY_BE_LONG) {
229 if (first) first = 0; else fprintf(stderr, ", ");
230 fprintf(stderr, "long");
231 }
232 if (info & MAY_BE_DOUBLE) {
233 if (first) first = 0; else fprintf(stderr, ", ");
234 fprintf(stderr, "double");
235 }
236 if (info & MAY_BE_STRING) {
237 if (first) first = 0; else fprintf(stderr, ", ");
238 fprintf(stderr, "string");
239 }
240 if (info & MAY_BE_ARRAY) {
241 if (first) first = 0; else fprintf(stderr, ", ");
242 if (!(info & MAY_BE_ARRAY_KEY_STRING) || (info & MAY_BE_PACKED_GUARD)) {
243 if (MAY_BE_PACKED_ONLY(info)) {
244 if (info & MAY_BE_PACKED_GUARD) {
245 fprintf(stderr, "!");
246 }
247 fprintf(stderr, "packed ");
248 } else if (MAY_BE_HASH_ONLY(info)) {
249 if (info & MAY_BE_PACKED_GUARD) {
250 fprintf(stderr, "!");
251 }
252 fprintf(stderr, "hash ");
253 }
254 }
255 fprintf(stderr, "array");
256 if ((info & MAY_BE_ARRAY_KEY_ANY) != 0 &&
257 ((info & MAY_BE_ARRAY_KEY_LONG) == 0 ||
258 (info & MAY_BE_ARRAY_KEY_STRING) == 0)) {
259 int afirst = 1;
260 fprintf(stderr, " [");
261 if (info & MAY_BE_ARRAY_KEY_LONG) {
262 if (afirst) afirst = 0; else fprintf(stderr, ", ");
263 fprintf(stderr, "long");
264 }
265 if (info & MAY_BE_ARRAY_KEY_STRING) {
266 if (afirst) afirst = 0; else fprintf(stderr, ", ");
267 fprintf(stderr, "string");
268 }
269 fprintf(stderr, "]");
270 }
271 if (info & (MAY_BE_ARRAY_OF_ANY|MAY_BE_ARRAY_OF_REF)) {
272 int afirst = 1;
273 fprintf(stderr, " of [");
274 if ((info & MAY_BE_ARRAY_OF_ANY) == MAY_BE_ARRAY_OF_ANY) {
275 if (afirst) afirst = 0; else fprintf(stderr, ", ");
276 fprintf(stderr, "any");
277 } else {
278 if (info & MAY_BE_ARRAY_OF_NULL) {
279 if (afirst) afirst = 0; else fprintf(stderr, ", ");
280 fprintf(stderr, "null");
281 }
282 if (info & MAY_BE_ARRAY_OF_FALSE) {
283 if (afirst) afirst = 0; else fprintf(stderr, ", ");
284 fprintf(stderr, "false");
285 }
286 if (info & MAY_BE_ARRAY_OF_TRUE) {
287 if (afirst) afirst = 0; else fprintf(stderr, ", ");
288 fprintf(stderr, "true");
289 }
290 if (info & MAY_BE_ARRAY_OF_LONG) {
291 if (afirst) afirst = 0; else fprintf(stderr, ", ");
292 fprintf(stderr, "long");
293 }
294 if (info & MAY_BE_ARRAY_OF_DOUBLE) {
295 if (afirst) afirst = 0; else fprintf(stderr, ", ");
296 fprintf(stderr, "double");
297 }
298 if (info & MAY_BE_ARRAY_OF_STRING) {
299 if (afirst) afirst = 0; else fprintf(stderr, ", ");
300 fprintf(stderr, "string");
301 }
302 if (info & MAY_BE_ARRAY_OF_ARRAY) {
303 if (afirst) afirst = 0; else fprintf(stderr, ", ");
304 fprintf(stderr, "array");
305 }
306 if (info & MAY_BE_ARRAY_OF_OBJECT) {
307 if (afirst) afirst = 0; else fprintf(stderr, ", ");
308 fprintf(stderr, "object");
309 }
310 if (info & MAY_BE_ARRAY_OF_RESOURCE) {
311 if (afirst) afirst = 0; else fprintf(stderr, ", ");
312 fprintf(stderr, "resource");
313 }
314 }
315 if (info & MAY_BE_ARRAY_OF_REF) {
316 if (afirst) afirst = 0; else fprintf(stderr, ", ");
317 fprintf(stderr, "ref");
318 }
319 fprintf(stderr, "]");
320 }
321 }
322 if (info & MAY_BE_OBJECT) {
323 if (first) first = 0; else fprintf(stderr, ", ");
324 fprintf(stderr, "object");
325 if (ce) {
326 if (is_instanceof) {
327 fprintf(stderr, " (instanceof %s)", ce->name->val);
328 } else {
329 fprintf(stderr, " (%s)", ce->name->val);
330 }
331 }
332 }
333 if (info & MAY_BE_RESOURCE) {
334 if (first) first = 0; else fprintf(stderr, ", ");
335 fprintf(stderr, "resource");
336 }
337 }
338 fprintf(stderr, "]");
339 }
340
zend_dump_ssa_var_info(const zend_ssa * ssa,int ssa_var_num,uint32_t dump_flags)341 static void zend_dump_ssa_var_info(const zend_ssa *ssa, int ssa_var_num, uint32_t dump_flags)
342 {
343 zend_dump_type_info(
344 ssa->var_info[ssa_var_num].type,
345 ssa->var_info[ssa_var_num].ce,
346 ssa->var_info[ssa_var_num].ce ?
347 ssa->var_info[ssa_var_num].is_instanceof : 0,
348 dump_flags);
349 }
350
zend_dump_ssa_var(const zend_op_array * op_array,const zend_ssa * ssa,int ssa_var_num,zend_uchar var_type,int var_num,uint32_t dump_flags)351 ZEND_API void zend_dump_ssa_var(const zend_op_array *op_array, const zend_ssa *ssa, int ssa_var_num, zend_uchar var_type, int var_num, uint32_t dump_flags)
352 {
353 if (ssa_var_num >= 0) {
354 fprintf(stderr, "#%d.", ssa_var_num);
355 } else {
356 fprintf(stderr, "#?.");
357 }
358 zend_dump_var(op_array, (var_num < op_array->last_var ? IS_CV : var_type), var_num);
359
360 if (ssa_var_num >= 0 && ssa->vars) {
361 if (ssa->vars[ssa_var_num].no_val) {
362 fprintf(stderr, " NOVAL");
363 }
364 if (ssa->vars[ssa_var_num].escape_state == ESCAPE_STATE_NO_ESCAPE) {
365 fprintf(stderr, " NOESC");
366 }
367 if (ssa->var_info) {
368 zend_dump_ssa_var_info(ssa, ssa_var_num, dump_flags);
369 if (ssa->var_info[ssa_var_num].has_range) {
370 zend_dump_range(&ssa->var_info[ssa_var_num].range);
371 }
372 }
373 }
374 }
375
zend_dump_type_constraint(const zend_op_array * op_array,const zend_ssa * ssa,const zend_ssa_type_constraint * constraint,uint32_t dump_flags)376 static void zend_dump_type_constraint(const zend_op_array *op_array, const zend_ssa *ssa, const zend_ssa_type_constraint *constraint, uint32_t dump_flags)
377 {
378 fprintf(stderr, " TYPE");
379 zend_dump_type_info(constraint->type_mask, constraint->ce, 1, dump_flags);
380 }
381
zend_dump_range_constraint(const zend_op_array * op_array,const zend_ssa * ssa,const zend_ssa_range_constraint * r,uint32_t dump_flags)382 static void zend_dump_range_constraint(const zend_op_array *op_array, const zend_ssa *ssa, const zend_ssa_range_constraint *r, uint32_t dump_flags)
383 {
384 if (r->range.underflow && r->range.overflow) {
385 return;
386 }
387 fprintf(stderr, " RANGE");
388 if (r->negative) {
389 fprintf(stderr, "~");
390 }
391 fprintf(stderr, "[");
392 if (r->range.underflow) {
393 fprintf(stderr, "-- .. ");
394 } else {
395 if (r->min_ssa_var >= 0) {
396 zend_dump_ssa_var(op_array, ssa, r->min_ssa_var, (r->min_var < op_array->last_var ? IS_CV : 0), r->min_var, dump_flags);
397 if (r->range.min > 0) {
398 fprintf(stderr, " + " ZEND_LONG_FMT, r->range.min);
399 } else if (r->range.min < 0) {
400 fprintf(stderr, " - " ZEND_LONG_FMT, -r->range.min);
401 }
402 fprintf(stderr, " .. ");
403 } else {
404 fprintf(stderr, ZEND_LONG_FMT " .. ", r->range.min);
405 }
406 }
407 if (r->range.overflow) {
408 fprintf(stderr, "++]");
409 } else {
410 if (r->max_ssa_var >= 0) {
411 zend_dump_ssa_var(op_array, ssa, r->max_ssa_var, (r->max_var < op_array->last_var ? IS_CV : 0), r->max_var, dump_flags);
412 if (r->range.max > 0) {
413 fprintf(stderr, " + " ZEND_LONG_FMT, r->range.max);
414 } else if (r->range.max < 0) {
415 fprintf(stderr, " - " ZEND_LONG_FMT, -r->range.max);
416 }
417 fprintf(stderr, "]");
418 } else {
419 fprintf(stderr, ZEND_LONG_FMT "]", r->range.max);
420 }
421 }
422 }
423
zend_dump_op(const zend_op_array * op_array,const zend_basic_block * b,const zend_op * opline,uint32_t dump_flags,const zend_ssa * ssa,const zend_ssa_op * ssa_op)424 ZEND_API void zend_dump_op(const zend_op_array *op_array, const zend_basic_block *b, const zend_op *opline, uint32_t dump_flags, const zend_ssa *ssa, const zend_ssa_op *ssa_op)
425 {
426 const char *name = zend_get_opcode_name(opline->opcode);
427 uint32_t flags = zend_get_opcode_flags(opline->opcode);
428 uint32_t n = 0;
429
430 if (!ssa_op || ssa_op->result_use < 0) {
431 if (opline->result_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
432 if (ssa_op && ssa_op->result_def >= 0) {
433 int ssa_var_num = ssa_op->result_def;
434 zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->result_type, EX_VAR_TO_NUM(opline->result.var), dump_flags);
435 } else {
436 zend_dump_var(op_array, opline->result_type, EX_VAR_TO_NUM(opline->result.var));
437 }
438 fprintf(stderr, " = ");
439 }
440 }
441
442 if (name) {
443 fprintf(stderr, "%s", (name + 5));
444 } else {
445 fprintf(stderr, "OP_%d", (int)opline->opcode);
446 }
447
448 if (ZEND_VM_EXT_NUM == (flags & ZEND_VM_EXT_MASK)) {
449 fprintf(stderr, " %u", opline->extended_value);
450 } else if (ZEND_VM_EXT_OP == (flags & ZEND_VM_EXT_MASK)) {
451 fprintf(stderr, " (%s)", zend_get_opcode_name(opline->extended_value) + 5);
452 } else if (ZEND_VM_EXT_TYPE == (flags & ZEND_VM_EXT_MASK)) {
453 switch (opline->extended_value) {
454 case IS_NULL:
455 fprintf(stderr, " (null)");
456 break;
457 case IS_FALSE:
458 fprintf(stderr, " (false)");
459 break;
460 case IS_TRUE:
461 fprintf(stderr, " (true)");
462 break;
463 case IS_LONG:
464 fprintf(stderr, " (long)");
465 break;
466 case IS_DOUBLE:
467 fprintf(stderr, " (double)");
468 break;
469 case IS_STRING:
470 fprintf(stderr, " (string)");
471 break;
472 case IS_ARRAY:
473 fprintf(stderr, " (array)");
474 break;
475 case IS_OBJECT:
476 fprintf(stderr, " (object)");
477 break;
478 case IS_RESOURCE:
479 fprintf(stderr, " (resource)");
480 break;
481 case _IS_BOOL:
482 fprintf(stderr, " (bool)");
483 break;
484 case IS_CALLABLE:
485 fprintf(stderr, " (callable)");
486 break;
487 case IS_VOID:
488 fprintf(stderr, " (void)");
489 break;
490 case IS_NEVER:
491 fprintf(stderr, " (never)");
492 break;
493 default:
494 fprintf(stderr, " (\?\?\?)");
495 break;
496 }
497 } else if (ZEND_VM_EXT_TYPE_MASK == (flags & ZEND_VM_EXT_MASK)) {
498 switch (opline->extended_value) {
499 case (1<<IS_NULL):
500 fprintf(stderr, " (null)");
501 break;
502 case (1<<IS_FALSE):
503 fprintf(stderr, " (false)");
504 break;
505 case (1<<IS_TRUE):
506 fprintf(stderr, " (true)");
507 break;
508 case (1<<IS_LONG):
509 fprintf(stderr, " (long)");
510 break;
511 case (1<<IS_DOUBLE):
512 fprintf(stderr, " (double)");
513 break;
514 case (1<<IS_STRING):
515 fprintf(stderr, " (string)");
516 break;
517 case (1<<IS_ARRAY):
518 fprintf(stderr, " (array)");
519 break;
520 case (1<<IS_OBJECT):
521 fprintf(stderr, " (object)");
522 break;
523 case (1<<IS_RESOURCE):
524 fprintf(stderr, " (resource)");
525 break;
526 case ((1<<IS_FALSE)|(1<<IS_TRUE)):
527 fprintf(stderr, " (bool)");
528 break;
529 default:
530 fprintf(stderr, " TYPE");
531 zend_dump_type_info(opline->extended_value, NULL, 0, dump_flags);
532 break;
533 }
534 } else if (ZEND_VM_EXT_EVAL == (flags & ZEND_VM_EXT_MASK)) {
535 switch (opline->extended_value) {
536 case ZEND_EVAL:
537 fprintf(stderr, " (eval)");
538 break;
539 case ZEND_INCLUDE:
540 fprintf(stderr, " (include)");
541 break;
542 case ZEND_INCLUDE_ONCE:
543 fprintf(stderr, " (include_once)");
544 break;
545 case ZEND_REQUIRE:
546 fprintf(stderr, " (require)");
547 break;
548 case ZEND_REQUIRE_ONCE:
549 fprintf(stderr, " (require_once)");
550 break;
551 default:
552 fprintf(stderr, " (\?\?\?)");
553 break;
554 }
555 } else if (ZEND_VM_EXT_SRC == (flags & ZEND_VM_EXT_MASK)) {
556 if (opline->extended_value == ZEND_RETURNS_VALUE) {
557 fprintf(stderr, " (value)");
558 } else if (opline->extended_value & ZEND_RETURNS_FUNCTION) {
559 fprintf(stderr, " (function)");
560 }
561 } else {
562 if (ZEND_VM_EXT_VAR_FETCH & flags) {
563 if (opline->extended_value & ZEND_FETCH_GLOBAL) {
564 fprintf(stderr, " (global)");
565 } else if (opline->extended_value & ZEND_FETCH_LOCAL) {
566 fprintf(stderr, " (local)");
567 } else if (opline->extended_value & ZEND_FETCH_GLOBAL_LOCK) {
568 fprintf(stderr, " (global+lock)");
569 }
570 }
571 if (ZEND_VM_EXT_ISSET & flags) {
572 if (!(opline->extended_value & ZEND_ISEMPTY)) {
573 fprintf(stderr, " (isset)");
574 } else {
575 fprintf(stderr, " (empty)");
576 }
577 }
578 if (ZEND_VM_EXT_ARRAY_INIT & flags) {
579 fprintf(stderr, " %u", opline->extended_value >> ZEND_ARRAY_SIZE_SHIFT);
580 if (!(opline->extended_value & ZEND_ARRAY_NOT_PACKED)) {
581 fprintf(stderr, " (packed)");
582 }
583 }
584 if (ZEND_VM_EXT_REF & flags) {
585 if (opline->extended_value & ZEND_ARRAY_ELEMENT_REF) {
586 fprintf(stderr, " (ref)");
587 }
588 }
589 if ((ZEND_VM_EXT_DIM_WRITE|ZEND_VM_EXT_FETCH_REF) & flags) {
590 uint32_t obj_flags = opline->extended_value & ZEND_FETCH_OBJ_FLAGS;
591 if (obj_flags == ZEND_FETCH_REF) {
592 fprintf(stderr, " (ref)");
593 } else if (obj_flags == ZEND_FETCH_DIM_WRITE) {
594 fprintf(stderr, " (dim write)");
595 }
596 }
597 }
598
599 if (opline->op1_type == IS_CONST) {
600 zend_dump_const(CRT_CONSTANT(opline->op1));
601 } else if (opline->op1_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
602 if (ssa_op) {
603 int ssa_var_num = ssa_op->op1_use;
604 if (ssa_var_num >= 0) {
605 fprintf(stderr, " ");
606 zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var), dump_flags);
607 } else if (ssa_op->op1_def < 0) {
608 fprintf(stderr, " ");
609 zend_dump_var(op_array, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var));
610 }
611 } else {
612 fprintf(stderr, " ");
613 zend_dump_var(op_array, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var));
614 }
615 if (ssa_op) {
616 int ssa_var_num = ssa_op->op1_def;
617 if (ssa_var_num >= 0) {
618 fprintf(stderr, " -> ");
619 zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var), dump_flags);
620 }
621 }
622 } else {
623 uint32_t op1_flags = ZEND_VM_OP1_FLAGS(flags);
624 if (ZEND_VM_OP_JMP_ADDR == (op1_flags & ZEND_VM_OP_MASK)) {
625 if (b) {
626 fprintf(stderr, " BB%d", b->successors[n++]);
627 } else {
628 fprintf(stderr, " %04u", (uint32_t)(OP_JMP_ADDR(opline, opline->op1) - op_array->opcodes));
629 }
630 } else {
631 zend_dump_unused_op(opline, opline->op1, op1_flags);
632 }
633 }
634
635 if (opline->op2_type == IS_CONST) {
636 zval *op = CRT_CONSTANT(opline->op2);
637 if (
638 opline->opcode == ZEND_SWITCH_LONG
639 || opline->opcode == ZEND_SWITCH_STRING
640 || opline->opcode == ZEND_MATCH
641 ) {
642 HashTable *jumptable = Z_ARRVAL_P(op);
643 zend_string *key;
644 zend_ulong num_key;
645 zval *zv;
646 ZEND_HASH_FOREACH_KEY_VAL(jumptable, num_key, key, zv) {
647 if (key) {
648 fprintf(stderr, " \"%s\":", ZSTR_VAL(key));
649 } else {
650 fprintf(stderr, " " ZEND_LONG_FMT ":", num_key);
651 }
652 if (b) {
653 fprintf(stderr, " BB%d,", b->successors[n++]);
654 } else {
655 fprintf(stderr, " %04u,", (uint32_t)ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, Z_LVAL_P(zv)));
656 }
657 } ZEND_HASH_FOREACH_END();
658 fprintf(stderr, " default:");
659 } else {
660 zend_dump_const(op);
661 }
662 } else if (opline->op2_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
663 if (ssa_op) {
664 int ssa_var_num = ssa_op->op2_use;
665 if (ssa_var_num >= 0) {
666 fprintf(stderr, " ");
667 zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var), dump_flags);
668 } else if (ssa_op->op2_def < 0) {
669 fprintf(stderr, " ");
670 zend_dump_var(op_array, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var));
671 }
672 } else {
673 fprintf(stderr, " ");
674 zend_dump_var(op_array, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var));
675 }
676 if (ssa_op) {
677 int ssa_var_num = ssa_op->op2_def;
678 if (ssa_var_num >= 0) {
679 fprintf(stderr, " -> ");
680 zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var), dump_flags);
681 }
682 }
683 } else {
684 uint32_t op2_flags = ZEND_VM_OP2_FLAGS(flags);
685 if (ZEND_VM_OP_JMP_ADDR == (op2_flags & ZEND_VM_OP_MASK)) {
686 if (opline->opcode != ZEND_CATCH || !(opline->extended_value & ZEND_LAST_CATCH)) {
687 if (b) {
688 fprintf(stderr, " BB%d", b->successors[n++]);
689 } else {
690 fprintf(stderr, " %04u", (uint32_t)(OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes));
691 }
692 }
693 } else {
694 zend_dump_unused_op(opline, opline->op2, op2_flags);
695 }
696 }
697
698 if (ZEND_VM_EXT_JMP_ADDR == (flags & ZEND_VM_EXT_MASK)) {
699 if (b) {
700 fprintf(stderr, " BB%d", b->successors[n++]);
701 } else {
702 fprintf(stderr, " %04u", (uint32_t)ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value));
703 }
704 }
705 if (opline->result_type == IS_CONST) {
706 zend_dump_const(CRT_CONSTANT(opline->result));
707 #if 0
708 } else if (opline->result_type & IS_SMART_BRANCH_JMPZ) {
709 fprintf(stderr, " jmpz");
710 } else if (opline->result_type & IS_SMART_BRANCH_JMPNZ) {
711 fprintf(stderr, " jmpnz");
712 #endif
713 } else if (ssa_op && ssa_op->result_use >= 0) {
714 if (opline->result_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
715 if (ssa_op) {
716 int ssa_var_num = ssa_op->result_use;
717 if (ssa_var_num >= 0) {
718 fprintf(stderr, " ");
719 zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->result_type, EX_VAR_TO_NUM(opline->result.var), dump_flags);
720 }
721 } else {
722 fprintf(stderr, " ");
723 zend_dump_var(op_array, opline->result_type, EX_VAR_TO_NUM(opline->result.var));
724 }
725 if (ssa_op) {
726 int ssa_var_num = ssa_op->result_def;
727 if (ssa_var_num >= 0) {
728 fprintf(stderr, " -> ");
729 zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->result_type, EX_VAR_TO_NUM(opline->result.var), dump_flags);
730 }
731 }
732 }
733 }
734 }
735
zend_dump_op_line(const zend_op_array * op_array,const zend_basic_block * b,const zend_op * opline,uint32_t dump_flags,const void * data)736 ZEND_API void zend_dump_op_line(const zend_op_array *op_array, const zend_basic_block *b, const zend_op *opline, uint32_t dump_flags, const void *data)
737 {
738 int len = 0;
739 const zend_ssa *ssa = NULL;
740 zend_ssa_op *ssa_op = NULL;
741
742 if (dump_flags & ZEND_DUMP_LINE_NUMBERS) {
743 fprintf(stderr, "L%04u ", opline->lineno);
744 }
745
746 len = fprintf(stderr, "%04u", (uint32_t)(opline - op_array->opcodes));
747 fprintf(stderr, "%*c", 5-len, ' ');
748
749 if (dump_flags & ZEND_DUMP_SSA) {
750 ssa = (const zend_ssa*)data;
751 if (ssa && ssa->ops) {
752 ssa_op = &ssa->ops[opline - op_array->opcodes];
753 }
754 }
755
756 zend_dump_op(op_array, b, opline, dump_flags, ssa, ssa_op);
757 fprintf(stderr, "\n");
758 }
759
zend_dump_block_info(const zend_cfg * cfg,int n,uint32_t dump_flags)760 static void zend_dump_block_info(const zend_cfg *cfg, int n, uint32_t dump_flags)
761 {
762 zend_basic_block *b = cfg->blocks + n;
763
764 if (n > 0) {
765 fprintf(stderr, "\n");
766 }
767 fprintf(stderr, "BB%d:\n ;", n);
768 if (b->flags & ZEND_BB_START) {
769 fprintf(stderr, " start");
770 }
771 if (b->flags & ZEND_BB_RECV_ENTRY) {
772 fprintf(stderr, " recv");
773 }
774 if (b->flags & ZEND_BB_FOLLOW) {
775 fprintf(stderr, " follow");
776 }
777 if (b->flags & ZEND_BB_TARGET) {
778 fprintf(stderr, " target");
779 }
780 if (b->flags & ZEND_BB_EXIT) {
781 fprintf(stderr, " exit");
782 }
783 if (b->flags & (ZEND_BB_ENTRY|ZEND_BB_RECV_ENTRY)) {
784 fprintf(stderr, " entry");
785 }
786 if (b->flags & ZEND_BB_TRY) {
787 fprintf(stderr, " try");
788 }
789 if (b->flags & ZEND_BB_CATCH) {
790 fprintf(stderr, " catch");
791 }
792 if (b->flags & ZEND_BB_FINALLY) {
793 fprintf(stderr, " finally");
794 }
795 if (b->flags & ZEND_BB_FINALLY_END) {
796 fprintf(stderr, " finally_end");
797 }
798 if (!(dump_flags & ZEND_DUMP_HIDE_UNREACHABLE) && !(b->flags & ZEND_BB_REACHABLE)) {
799 fprintf(stderr, " unreachable");
800 }
801 if (b->flags & ZEND_BB_UNREACHABLE_FREE) {
802 fprintf(stderr, " unreachable_free");
803 }
804 if (b->flags & ZEND_BB_LOOP_HEADER) {
805 fprintf(stderr, " loop_header");
806 }
807 if (b->flags & ZEND_BB_IRREDUCIBLE_LOOP) {
808 fprintf(stderr, " irreducible");
809 }
810 if (b->len != 0) {
811 fprintf(stderr, " lines=[%d-%d]", b->start, b->start + b->len - 1);
812 } else {
813 fprintf(stderr, " empty");
814 }
815 fprintf(stderr, "\n");
816
817 if (b->predecessors_count) {
818 int *p = cfg->predecessors + b->predecessor_offset;
819 int *end = p + b->predecessors_count;
820
821 fprintf(stderr, " ; from=(BB%d", *p);
822 for (p++; p < end; p++) {
823 fprintf(stderr, ", BB%d", *p);
824 }
825 fprintf(stderr, ")\n");
826 }
827
828 if (b->successors_count > 0) {
829 int s;
830 fprintf(stderr, " ; to=(BB%d", b->successors[0]);
831 for (s = 1; s < b->successors_count; s++) {
832 fprintf(stderr, ", BB%d", b->successors[s]);
833 }
834 fprintf(stderr, ")\n");
835 }
836
837 if (b->idom >= 0) {
838 fprintf(stderr, " ; idom=BB%d\n", b->idom);
839 }
840 if (b->level >= 0) {
841 fprintf(stderr, " ; level=%d\n", b->level);
842 }
843 if (b->loop_header >= 0) {
844 fprintf(stderr, " ; loop_header=%d\n", b->loop_header);
845 }
846 if (b->children >= 0) {
847 int j = b->children;
848 fprintf(stderr, " ; children=(BB%d", j);
849 j = cfg->blocks[j].next_child;
850 while (j >= 0) {
851 fprintf(stderr, ", BB%d", j);
852 j = cfg->blocks[j].next_child;
853 }
854 fprintf(stderr, ")\n");
855 }
856 }
857
zend_dump_block_header(const zend_cfg * cfg,const zend_op_array * op_array,const zend_ssa * ssa,int n,uint32_t dump_flags)858 static void zend_dump_block_header(const zend_cfg *cfg, const zend_op_array *op_array, const zend_ssa *ssa, int n, uint32_t dump_flags)
859 {
860 zend_dump_block_info(cfg, n, dump_flags);
861 if (ssa && ssa->blocks && ssa->blocks[n].phis) {
862 zend_ssa_phi *p = ssa->blocks[n].phis;
863
864 do {
865 int j;
866
867 fprintf(stderr, " ");
868 zend_dump_ssa_var(op_array, ssa, p->ssa_var, 0, p->var, dump_flags);
869 if (p->pi < 0) {
870 fprintf(stderr, " = Phi(");
871 for (j = 0; j < cfg->blocks[n].predecessors_count; j++) {
872 if (j > 0) {
873 fprintf(stderr, ", ");
874 }
875 zend_dump_ssa_var(op_array, ssa, p->sources[j], 0, p->var, dump_flags);
876 }
877 fprintf(stderr, ")\n");
878 } else {
879 fprintf(stderr, " = Pi<BB%d>(", p->pi);
880 zend_dump_ssa_var(op_array, ssa, p->sources[0], 0, p->var, dump_flags);
881 fprintf(stderr, " &");
882 if (p->has_range_constraint) {
883 zend_dump_range_constraint(op_array, ssa, &p->constraint.range, dump_flags);
884 } else {
885 zend_dump_type_constraint(op_array, ssa, &p->constraint.type, dump_flags);
886 }
887 fprintf(stderr, ")\n");
888 }
889 p = p->next;
890 } while (p);
891 }
892 }
893
zend_dump_op_array_name(const zend_op_array * op_array)894 void zend_dump_op_array_name(const zend_op_array *op_array)
895 {
896 if (op_array->function_name) {
897 if (op_array->scope && op_array->scope->name) {
898 fprintf(stderr, "%s::%s", op_array->scope->name->val, op_array->function_name->val);
899 } else {
900 fprintf(stderr, "%s", op_array->function_name->val);
901 }
902 } else {
903 fprintf(stderr, "%s", "$_main");
904 }
905 }
906
zend_dump_op_array(const zend_op_array * op_array,uint32_t dump_flags,const char * msg,const void * data)907 ZEND_API void zend_dump_op_array(const zend_op_array *op_array, uint32_t dump_flags, const char *msg, const void *data)
908 {
909 int i;
910 const zend_cfg *cfg = NULL;
911 const zend_ssa *ssa = NULL;
912 zend_func_info *func_info = NULL;
913 uint32_t func_flags = 0;
914
915 if (dump_flags & (ZEND_DUMP_CFG|ZEND_DUMP_SSA)) {
916 cfg = (const zend_cfg*)data;
917 if (!cfg->blocks) {
918 cfg = data = NULL;
919 }
920 }
921 if (dump_flags & ZEND_DUMP_SSA) {
922 ssa = (const zend_ssa*)data;
923 }
924
925 func_info = ZEND_FUNC_INFO(op_array);
926 if (func_info) {
927 func_flags = func_info->flags;
928 }
929
930 fprintf(stderr, "\n");
931 zend_dump_op_array_name(op_array);
932 fprintf(stderr, ":\n ; (lines=%d, args=%d",
933 op_array->last,
934 op_array->num_args);
935 fprintf(stderr, ", vars=%d, tmps=%d", op_array->last_var, op_array->T);
936 if (ssa) {
937 fprintf(stderr, ", ssa_vars=%d", ssa->vars_count);
938 }
939 if (func_flags & ZEND_FUNC_INDIRECT_VAR_ACCESS) {
940 fprintf(stderr, ", dynamic");
941 }
942 if (func_flags & ZEND_FUNC_RECURSIVE) {
943 fprintf(stderr, ", recursive");
944 if (func_flags & ZEND_FUNC_RECURSIVE_DIRECTLY) {
945 fprintf(stderr, " directly");
946 }
947 if (func_flags & ZEND_FUNC_RECURSIVE_INDIRECTLY) {
948 fprintf(stderr, " indirectly");
949 }
950 }
951 if (func_flags & ZEND_FUNC_IRREDUCIBLE) {
952 fprintf(stderr, ", irreducible");
953 }
954 if (func_flags & ZEND_FUNC_NO_LOOPS) {
955 fprintf(stderr, ", no_loops");
956 }
957 if (func_flags & ZEND_FUNC_HAS_EXTENDED_STMT) {
958 fprintf(stderr, ", extended_stmt");
959 }
960 if (func_flags & ZEND_FUNC_HAS_EXTENDED_FCALL) {
961 fprintf(stderr, ", extended_fcall");
962 }
963 //TODO: this is useful only for JIT???
964 #if 0
965 if (info->flags & ZEND_JIT_FUNC_NO_IN_MEM_CVS) {
966 fprintf(stderr, ", no_in_mem_cvs");
967 }
968 if (info->flags & ZEND_JIT_FUNC_NO_USED_ARGS) {
969 fprintf(stderr, ", no_used_args");
970 }
971 if (info->flags & ZEND_JIT_FUNC_NO_SYMTAB) {
972 fprintf(stderr, ", no_symtab");
973 }
974 if (info->flags & ZEND_JIT_FUNC_NO_FRAME) {
975 fprintf(stderr, ", no_frame");
976 }
977 if (info->flags & ZEND_JIT_FUNC_INLINE) {
978 fprintf(stderr, ", inline");
979 }
980 #endif
981 fprintf(stderr, ")\n");
982 if (msg) {
983 fprintf(stderr, " ; (%s)\n", msg);
984 }
985 fprintf(stderr, " ; %s:%u-%u\n", op_array->filename->val, op_array->line_start, op_array->line_end);
986
987 if (func_info) {
988 fprintf(stderr, " ; return ");
989 zend_dump_type_info(func_info->return_info.type, func_info->return_info.ce, func_info->return_info.is_instanceof, dump_flags);
990 zend_dump_range(&func_info->return_info.range);
991 fprintf(stderr, "\n");
992 }
993
994 if (ssa && ssa->var_info) {
995 for (i = 0; i < op_array->last_var; i++) {
996 fprintf(stderr, " ; ");
997 zend_dump_ssa_var(op_array, ssa, i, IS_CV, i, dump_flags);
998 fprintf(stderr, "\n");
999 }
1000 }
1001
1002 if (cfg) {
1003 int n;
1004 zend_basic_block *b;
1005
1006 for (n = 0; n < cfg->blocks_count; n++) {
1007 b = cfg->blocks + n;
1008 if (!(dump_flags & ZEND_DUMP_HIDE_UNREACHABLE) || (b->flags & ZEND_BB_REACHABLE)) {
1009 const zend_op *opline;
1010 const zend_op *end;
1011
1012 zend_dump_block_header(cfg, op_array, ssa, n, dump_flags);
1013 opline = op_array->opcodes + b->start;
1014 end = opline + b->len;
1015 while (opline < end) {
1016 zend_dump_op_line(op_array, b, opline, dump_flags, data);
1017 opline++;
1018 }
1019 }
1020 }
1021 if (op_array->last_live_range && (dump_flags & ZEND_DUMP_LIVE_RANGES)) {
1022 fprintf(stderr, "LIVE RANGES:\n");
1023 for (i = 0; i < op_array->last_live_range; i++) {
1024 fprintf(stderr,
1025 " %u: %04u - %04u ",
1026 EX_VAR_TO_NUM(op_array->live_range[i].var & ~ZEND_LIVE_MASK),
1027 op_array->live_range[i].start,
1028 op_array->live_range[i].end);
1029 switch (op_array->live_range[i].var & ZEND_LIVE_MASK) {
1030 case ZEND_LIVE_TMPVAR:
1031 fprintf(stderr, "(tmp/var)\n");
1032 break;
1033 case ZEND_LIVE_LOOP:
1034 fprintf(stderr, "(loop)\n");
1035 break;
1036 case ZEND_LIVE_SILENCE:
1037 fprintf(stderr, "(silence)\n");
1038 break;
1039 case ZEND_LIVE_ROPE:
1040 fprintf(stderr, "(rope)\n");
1041 break;
1042 case ZEND_LIVE_NEW:
1043 fprintf(stderr, "(new)\n");
1044 break;
1045 }
1046 }
1047 }
1048 if (op_array->last_try_catch) {
1049 fprintf(stderr, "EXCEPTION TABLE:\n");
1050 for (i = 0; i < op_array->last_try_catch; i++) {
1051 fprintf(stderr, " BB%u",
1052 cfg->map[op_array->try_catch_array[i].try_op]);
1053 if (op_array->try_catch_array[i].catch_op) {
1054 fprintf(stderr, ", BB%u",
1055 cfg->map[op_array->try_catch_array[i].catch_op]);
1056 } else {
1057 fprintf(stderr, ", -");
1058 }
1059 if (op_array->try_catch_array[i].finally_op) {
1060 fprintf(stderr, ", BB%u",
1061 cfg->map[op_array->try_catch_array[i].finally_op]);
1062 } else {
1063 fprintf(stderr, ", -");
1064 }
1065 if (op_array->try_catch_array[i].finally_end) {
1066 fprintf(stderr, ", BB%u\n",
1067 cfg->map[op_array->try_catch_array[i].finally_end]);
1068 } else {
1069 fprintf(stderr, ", -\n");
1070 }
1071 }
1072 }
1073 } else {
1074 const zend_op *opline = op_array->opcodes;
1075 const zend_op *end = opline + op_array->last;
1076
1077 while (opline < end) {
1078 zend_dump_op_line(op_array, NULL, opline, dump_flags, data);
1079 opline++;
1080 }
1081 if (op_array->last_live_range && (dump_flags & ZEND_DUMP_LIVE_RANGES)) {
1082 fprintf(stderr, "LIVE RANGES:\n");
1083 for (i = 0; i < op_array->last_live_range; i++) {
1084 fprintf(stderr,
1085 " %u: %04u - %04u ",
1086 EX_VAR_TO_NUM(op_array->live_range[i].var & ~ZEND_LIVE_MASK),
1087 op_array->live_range[i].start,
1088 op_array->live_range[i].end);
1089 switch (op_array->live_range[i].var & ZEND_LIVE_MASK) {
1090 case ZEND_LIVE_TMPVAR:
1091 fprintf(stderr, "(tmp/var)\n");
1092 break;
1093 case ZEND_LIVE_LOOP:
1094 fprintf(stderr, "(loop)\n");
1095 break;
1096 case ZEND_LIVE_SILENCE:
1097 fprintf(stderr, "(silence)\n");
1098 break;
1099 case ZEND_LIVE_ROPE:
1100 fprintf(stderr, "(rope)\n");
1101 break;
1102 case ZEND_LIVE_NEW:
1103 fprintf(stderr, "(new)\n");
1104 break;
1105 }
1106 }
1107 }
1108 if (op_array->last_try_catch) {
1109 fprintf(stderr, "EXCEPTION TABLE:\n");
1110 for (i = 0; i < op_array->last_try_catch; i++) {
1111 fprintf(stderr,
1112 " %04u",
1113 op_array->try_catch_array[i].try_op);
1114
1115 if (op_array->try_catch_array[i].catch_op) {
1116 fprintf(stderr,
1117 ", %04u",
1118 op_array->try_catch_array[i].catch_op);
1119 } else {
1120 fprintf(stderr, ", -");
1121 }
1122 if (op_array->try_catch_array[i].finally_op) {
1123 fprintf(stderr,
1124 ", %04u",
1125 op_array->try_catch_array[i].finally_op);
1126 } else {
1127 fprintf(stderr, ", -");
1128 }
1129 if (op_array->try_catch_array[i].finally_end) {
1130 fprintf(stderr,
1131 ", %04u",
1132 op_array->try_catch_array[i].finally_end);
1133 } else {
1134 fprintf(stderr, ", -\n");
1135 }
1136 }
1137 }
1138 }
1139 }
1140
zend_dump_dominators(const zend_op_array * op_array,const zend_cfg * cfg)1141 void zend_dump_dominators(const zend_op_array *op_array, const zend_cfg *cfg)
1142 {
1143 int j;
1144
1145 fprintf(stderr, "\nDOMINATORS-TREE for \"");
1146 zend_dump_op_array_name(op_array);
1147 fprintf(stderr, "\"\n");
1148 for (j = 0; j < cfg->blocks_count; j++) {
1149 zend_basic_block *b = cfg->blocks + j;
1150 if (b->flags & ZEND_BB_REACHABLE) {
1151 zend_dump_block_info(cfg, j, 0);
1152 }
1153 }
1154 }
1155
zend_dump_variables(const zend_op_array * op_array)1156 void zend_dump_variables(const zend_op_array *op_array)
1157 {
1158 int j;
1159
1160 fprintf(stderr, "\nCV Variables for \"");
1161 zend_dump_op_array_name(op_array);
1162 fprintf(stderr, "\"\n");
1163 for (j = 0; j < op_array->last_var; j++) {
1164 fprintf(stderr, " ");
1165 zend_dump_var(op_array, IS_CV, j);
1166 fprintf(stderr, "\n");
1167 }
1168 }
1169
zend_dump_ssa_variables(const zend_op_array * op_array,const zend_ssa * ssa,uint32_t dump_flags)1170 void zend_dump_ssa_variables(const zend_op_array *op_array, const zend_ssa *ssa, uint32_t dump_flags)
1171 {
1172 int j;
1173
1174 if (ssa->vars) {
1175 fprintf(stderr, "\nSSA Variable for \"");
1176 zend_dump_op_array_name(op_array);
1177 fprintf(stderr, "\"\n");
1178
1179 for (j = 0; j < ssa->vars_count; j++) {
1180 fprintf(stderr, " ");
1181 zend_dump_ssa_var(op_array, ssa, j, IS_CV, ssa->vars[j].var, dump_flags);
1182 if (ssa->vars[j].scc >= 0) {
1183 if (ssa->vars[j].scc_entry) {
1184 fprintf(stderr, " *");
1185 } else {
1186 fprintf(stderr, " ");
1187 }
1188 fprintf(stderr, "SCC=%d", ssa->vars[j].scc);
1189 }
1190 fprintf(stderr, "\n");
1191 }
1192 }
1193 }
1194
zend_dump_var_set(const zend_op_array * op_array,const char * name,zend_bitset set)1195 static void zend_dump_var_set(const zend_op_array *op_array, const char *name, zend_bitset set)
1196 {
1197 int first = 1;
1198 uint32_t i;
1199
1200 fprintf(stderr, " ; %s = {", name);
1201 for (i = 0; i < op_array->last_var + op_array->T; i++) {
1202 if (zend_bitset_in(set, i)) {
1203 if (first) {
1204 first = 0;
1205 } else {
1206 fprintf(stderr, ", ");
1207 }
1208 zend_dump_var(op_array, IS_CV, i);
1209 }
1210 }
1211 fprintf(stderr, "}\n");
1212 }
1213
zend_dump_dfg(const zend_op_array * op_array,const zend_cfg * cfg,const zend_dfg * dfg)1214 void zend_dump_dfg(const zend_op_array *op_array, const zend_cfg *cfg, const zend_dfg *dfg)
1215 {
1216 int j;
1217 fprintf(stderr, "\nVariable Liveness for \"");
1218 zend_dump_op_array_name(op_array);
1219 fprintf(stderr, "\"\n");
1220
1221 for (j = 0; j < cfg->blocks_count; j++) {
1222 fprintf(stderr, " BB%d:\n", j);
1223 zend_dump_var_set(op_array, "def", DFG_BITSET(dfg->def, dfg->size, j));
1224 zend_dump_var_set(op_array, "use", DFG_BITSET(dfg->use, dfg->size, j));
1225 zend_dump_var_set(op_array, "in ", DFG_BITSET(dfg->in, dfg->size, j));
1226 zend_dump_var_set(op_array, "out", DFG_BITSET(dfg->out, dfg->size, j));
1227 }
1228 }
1229
zend_dump_phi_placement(const zend_op_array * op_array,const zend_ssa * ssa)1230 void zend_dump_phi_placement(const zend_op_array *op_array, const zend_ssa *ssa)
1231 {
1232 int j;
1233 zend_ssa_block *ssa_blocks = ssa->blocks;
1234 int blocks_count = ssa->cfg.blocks_count;
1235
1236 fprintf(stderr, "\nSSA Phi() Placement for \"");
1237 zend_dump_op_array_name(op_array);
1238 fprintf(stderr, "\"\n");
1239 for (j = 0; j < blocks_count; j++) {
1240 if (ssa_blocks && ssa_blocks[j].phis) {
1241 zend_ssa_phi *p = ssa_blocks[j].phis;
1242 int first = 1;
1243
1244 fprintf(stderr, " BB%d:\n", j);
1245 if (p->pi >= 0) {
1246 fprintf(stderr, " ; pi={");
1247 } else {
1248 fprintf(stderr, " ; phi={");
1249 }
1250 do {
1251 if (first) {
1252 first = 0;
1253 } else {
1254 fprintf(stderr, ", ");
1255 }
1256 zend_dump_var(op_array, IS_CV, p->var);
1257 p = p->next;
1258 } while (p);
1259 fprintf(stderr, "}\n");
1260 }
1261 }
1262 }
1263