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c62c2659 BS |
1 | /* Instruction scheduling pass. |
2 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, | |
5fd9b178 | 3 | 1999, 2000, 2002, 2003, 2004 Free Software Foundation, Inc. |
c62c2659 BS |
4 | Contributed by Michael Tiemann (tiemann@cygnus.com) Enhanced by, |
5 | and currently maintained by, Jim Wilson (wilson@cygnus.com) | |
6 | ||
1322177d | 7 | This file is part of GCC. |
c62c2659 | 8 | |
1322177d LB |
9 | GCC is free software; you can redistribute it and/or modify it under |
10 | the terms of the GNU General Public License as published by the Free | |
11 | Software Foundation; either version 2, or (at your option) any later | |
12 | version. | |
c62c2659 | 13 | |
1322177d LB |
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
c62c2659 BS |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
17 | for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
47a1bd82 NC |
20 | along with GCC; see the file COPYING. If not, write to the Free |
21 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
c62c2659 BS |
22 | 02111-1307, USA. */ |
23 | \f | |
24 | #include "config.h" | |
25 | #include "system.h" | |
4977bab6 ZW |
26 | #include "coretypes.h" |
27 | #include "tm.h" | |
c62c2659 BS |
28 | #include "toplev.h" |
29 | #include "rtl.h" | |
30 | #include "tm_p.h" | |
31 | #include "regs.h" | |
18e720b3 BS |
32 | #include "hard-reg-set.h" |
33 | #include "basic-block.h" | |
c62c2659 | 34 | #include "insn-attr.h" |
b3ae1ccd | 35 | #include "real.h" |
c62c2659 | 36 | #include "sched-int.h" |
fae15c93 | 37 | #include "target.h" |
c62c2659 | 38 | |
f56887a7 | 39 | #ifdef INSN_SCHEDULING |
c62c2659 | 40 | |
46c5ad27 | 41 | static char *safe_concat (char *, char *, const char *); |
46c5ad27 AJ |
42 | static void print_exp (char *, rtx, int); |
43 | static void print_value (char *, rtx, int); | |
44 | static void print_pattern (char *, rtx, int); | |
c62c2659 | 45 | |
c62c2659 BS |
46 | #define BUF_LEN 2048 |
47 | ||
48 | static char * | |
46c5ad27 | 49 | safe_concat (char *buf, char *cur, const char *str) |
c62c2659 BS |
50 | { |
51 | char *end = buf + BUF_LEN - 2; /* Leave room for null. */ | |
52 | int c; | |
53 | ||
54 | if (cur > end) | |
55 | { | |
56 | *end = '\0'; | |
57 | return end; | |
58 | } | |
59 | ||
60 | while (cur < end && (c = *str++) != '\0') | |
61 | *cur++ = c; | |
62 | ||
63 | *cur = '\0'; | |
64 | return cur; | |
65 | } | |
66 | ||
67 | /* This recognizes rtx, I classified as expressions. These are always | |
68 | represent some action on values or results of other expression, that | |
69 | may be stored in objects representing values. */ | |
70 | ||
71 | static void | |
46c5ad27 | 72 | print_exp (char *buf, rtx x, int verbose) |
c62c2659 BS |
73 | { |
74 | char tmp[BUF_LEN]; | |
75 | const char *st[4]; | |
76 | char *cur = buf; | |
77 | const char *fun = (char *) 0; | |
78 | const char *sep; | |
79 | rtx op[4]; | |
80 | int i; | |
81 | ||
82 | for (i = 0; i < 4; i++) | |
83 | { | |
84 | st[i] = (char *) 0; | |
85 | op[i] = NULL_RTX; | |
86 | } | |
87 | ||
88 | switch (GET_CODE (x)) | |
89 | { | |
90 | case PLUS: | |
91 | op[0] = XEXP (x, 0); | |
92 | if (GET_CODE (XEXP (x, 1)) == CONST_INT | |
93 | && INTVAL (XEXP (x, 1)) < 0) | |
94 | { | |
95 | st[1] = "-"; | |
96 | op[1] = GEN_INT (-INTVAL (XEXP (x, 1))); | |
97 | } | |
98 | else | |
99 | { | |
100 | st[1] = "+"; | |
101 | op[1] = XEXP (x, 1); | |
102 | } | |
103 | break; | |
104 | case LO_SUM: | |
105 | op[0] = XEXP (x, 0); | |
106 | st[1] = "+low("; | |
107 | op[1] = XEXP (x, 1); | |
108 | st[2] = ")"; | |
109 | break; | |
110 | case MINUS: | |
111 | op[0] = XEXP (x, 0); | |
112 | st[1] = "-"; | |
113 | op[1] = XEXP (x, 1); | |
114 | break; | |
115 | case COMPARE: | |
116 | fun = "cmp"; | |
117 | op[0] = XEXP (x, 0); | |
118 | op[1] = XEXP (x, 1); | |
119 | break; | |
120 | case NEG: | |
121 | st[0] = "-"; | |
122 | op[0] = XEXP (x, 0); | |
123 | break; | |
124 | case MULT: | |
125 | op[0] = XEXP (x, 0); | |
126 | st[1] = "*"; | |
127 | op[1] = XEXP (x, 1); | |
128 | break; | |
129 | case DIV: | |
130 | op[0] = XEXP (x, 0); | |
131 | st[1] = "/"; | |
132 | op[1] = XEXP (x, 1); | |
133 | break; | |
134 | case UDIV: | |
135 | fun = "udiv"; | |
136 | op[0] = XEXP (x, 0); | |
137 | op[1] = XEXP (x, 1); | |
138 | break; | |
139 | case MOD: | |
140 | op[0] = XEXP (x, 0); | |
141 | st[1] = "%"; | |
142 | op[1] = XEXP (x, 1); | |
143 | break; | |
144 | case UMOD: | |
145 | fun = "umod"; | |
146 | op[0] = XEXP (x, 0); | |
147 | op[1] = XEXP (x, 1); | |
148 | break; | |
149 | case SMIN: | |
150 | fun = "smin"; | |
151 | op[0] = XEXP (x, 0); | |
152 | op[1] = XEXP (x, 1); | |
153 | break; | |
154 | case SMAX: | |
155 | fun = "smax"; | |
156 | op[0] = XEXP (x, 0); | |
157 | op[1] = XEXP (x, 1); | |
158 | break; | |
159 | case UMIN: | |
160 | fun = "umin"; | |
161 | op[0] = XEXP (x, 0); | |
162 | op[1] = XEXP (x, 1); | |
163 | break; | |
164 | case UMAX: | |
165 | fun = "umax"; | |
166 | op[0] = XEXP (x, 0); | |
167 | op[1] = XEXP (x, 1); | |
168 | break; | |
169 | case NOT: | |
170 | st[0] = "!"; | |
171 | op[0] = XEXP (x, 0); | |
172 | break; | |
173 | case AND: | |
174 | op[0] = XEXP (x, 0); | |
175 | st[1] = "&"; | |
176 | op[1] = XEXP (x, 1); | |
177 | break; | |
178 | case IOR: | |
179 | op[0] = XEXP (x, 0); | |
180 | st[1] = "|"; | |
181 | op[1] = XEXP (x, 1); | |
182 | break; | |
183 | case XOR: | |
184 | op[0] = XEXP (x, 0); | |
185 | st[1] = "^"; | |
186 | op[1] = XEXP (x, 1); | |
187 | break; | |
188 | case ASHIFT: | |
189 | op[0] = XEXP (x, 0); | |
190 | st[1] = "<<"; | |
191 | op[1] = XEXP (x, 1); | |
192 | break; | |
193 | case LSHIFTRT: | |
194 | op[0] = XEXP (x, 0); | |
195 | st[1] = " 0>>"; | |
196 | op[1] = XEXP (x, 1); | |
197 | break; | |
198 | case ASHIFTRT: | |
199 | op[0] = XEXP (x, 0); | |
200 | st[1] = ">>"; | |
201 | op[1] = XEXP (x, 1); | |
202 | break; | |
203 | case ROTATE: | |
204 | op[0] = XEXP (x, 0); | |
205 | st[1] = "<-<"; | |
206 | op[1] = XEXP (x, 1); | |
207 | break; | |
208 | case ROTATERT: | |
209 | op[0] = XEXP (x, 0); | |
210 | st[1] = ">->"; | |
211 | op[1] = XEXP (x, 1); | |
212 | break; | |
213 | case ABS: | |
214 | fun = "abs"; | |
215 | op[0] = XEXP (x, 0); | |
216 | break; | |
217 | case SQRT: | |
218 | fun = "sqrt"; | |
219 | op[0] = XEXP (x, 0); | |
220 | break; | |
221 | case FFS: | |
222 | fun = "ffs"; | |
223 | op[0] = XEXP (x, 0); | |
224 | break; | |
225 | case EQ: | |
226 | op[0] = XEXP (x, 0); | |
227 | st[1] = "=="; | |
228 | op[1] = XEXP (x, 1); | |
229 | break; | |
230 | case NE: | |
231 | op[0] = XEXP (x, 0); | |
232 | st[1] = "!="; | |
233 | op[1] = XEXP (x, 1); | |
234 | break; | |
235 | case GT: | |
236 | op[0] = XEXP (x, 0); | |
237 | st[1] = ">"; | |
238 | op[1] = XEXP (x, 1); | |
239 | break; | |
240 | case GTU: | |
241 | fun = "gtu"; | |
242 | op[0] = XEXP (x, 0); | |
243 | op[1] = XEXP (x, 1); | |
244 | break; | |
245 | case LT: | |
246 | op[0] = XEXP (x, 0); | |
247 | st[1] = "<"; | |
248 | op[1] = XEXP (x, 1); | |
249 | break; | |
250 | case LTU: | |
251 | fun = "ltu"; | |
252 | op[0] = XEXP (x, 0); | |
253 | op[1] = XEXP (x, 1); | |
254 | break; | |
255 | case GE: | |
256 | op[0] = XEXP (x, 0); | |
257 | st[1] = ">="; | |
258 | op[1] = XEXP (x, 1); | |
259 | break; | |
260 | case GEU: | |
261 | fun = "geu"; | |
262 | op[0] = XEXP (x, 0); | |
263 | op[1] = XEXP (x, 1); | |
264 | break; | |
265 | case LE: | |
266 | op[0] = XEXP (x, 0); | |
267 | st[1] = "<="; | |
268 | op[1] = XEXP (x, 1); | |
269 | break; | |
270 | case LEU: | |
271 | fun = "leu"; | |
272 | op[0] = XEXP (x, 0); | |
273 | op[1] = XEXP (x, 1); | |
274 | break; | |
275 | case SIGN_EXTRACT: | |
276 | fun = (verbose) ? "sign_extract" : "sxt"; | |
277 | op[0] = XEXP (x, 0); | |
278 | op[1] = XEXP (x, 1); | |
279 | op[2] = XEXP (x, 2); | |
280 | break; | |
281 | case ZERO_EXTRACT: | |
282 | fun = (verbose) ? "zero_extract" : "zxt"; | |
283 | op[0] = XEXP (x, 0); | |
284 | op[1] = XEXP (x, 1); | |
285 | op[2] = XEXP (x, 2); | |
286 | break; | |
287 | case SIGN_EXTEND: | |
288 | fun = (verbose) ? "sign_extend" : "sxn"; | |
289 | op[0] = XEXP (x, 0); | |
290 | break; | |
291 | case ZERO_EXTEND: | |
292 | fun = (verbose) ? "zero_extend" : "zxn"; | |
293 | op[0] = XEXP (x, 0); | |
294 | break; | |
295 | case FLOAT_EXTEND: | |
296 | fun = (verbose) ? "float_extend" : "fxn"; | |
297 | op[0] = XEXP (x, 0); | |
298 | break; | |
299 | case TRUNCATE: | |
300 | fun = (verbose) ? "trunc" : "trn"; | |
301 | op[0] = XEXP (x, 0); | |
302 | break; | |
303 | case FLOAT_TRUNCATE: | |
304 | fun = (verbose) ? "float_trunc" : "ftr"; | |
305 | op[0] = XEXP (x, 0); | |
306 | break; | |
307 | case FLOAT: | |
308 | fun = (verbose) ? "float" : "flt"; | |
309 | op[0] = XEXP (x, 0); | |
310 | break; | |
311 | case UNSIGNED_FLOAT: | |
312 | fun = (verbose) ? "uns_float" : "ufl"; | |
313 | op[0] = XEXP (x, 0); | |
314 | break; | |
315 | case FIX: | |
316 | fun = "fix"; | |
317 | op[0] = XEXP (x, 0); | |
318 | break; | |
319 | case UNSIGNED_FIX: | |
320 | fun = (verbose) ? "uns_fix" : "ufx"; | |
321 | op[0] = XEXP (x, 0); | |
322 | break; | |
323 | case PRE_DEC: | |
324 | st[0] = "--"; | |
325 | op[0] = XEXP (x, 0); | |
326 | break; | |
327 | case PRE_INC: | |
328 | st[0] = "++"; | |
329 | op[0] = XEXP (x, 0); | |
330 | break; | |
331 | case POST_DEC: | |
332 | op[0] = XEXP (x, 0); | |
333 | st[1] = "--"; | |
334 | break; | |
335 | case POST_INC: | |
336 | op[0] = XEXP (x, 0); | |
337 | st[1] = "++"; | |
338 | break; | |
339 | case CALL: | |
340 | st[0] = "call "; | |
341 | op[0] = XEXP (x, 0); | |
342 | if (verbose) | |
343 | { | |
344 | st[1] = " argc:"; | |
345 | op[1] = XEXP (x, 1); | |
346 | } | |
347 | break; | |
348 | case IF_THEN_ELSE: | |
349 | st[0] = "{("; | |
350 | op[0] = XEXP (x, 0); | |
351 | st[1] = ")?"; | |
352 | op[1] = XEXP (x, 1); | |
353 | st[2] = ":"; | |
354 | op[2] = XEXP (x, 2); | |
355 | st[3] = "}"; | |
356 | break; | |
357 | case TRAP_IF: | |
358 | fun = "trap_if"; | |
359 | op[0] = TRAP_CONDITION (x); | |
360 | break; | |
21b8482a JJ |
361 | case PREFETCH: |
362 | fun = "prefetch"; | |
363 | op[0] = XEXP (x, 0); | |
364 | op[1] = XEXP (x, 1); | |
365 | op[2] = XEXP (x, 2); | |
366 | break; | |
c62c2659 BS |
367 | case UNSPEC: |
368 | case UNSPEC_VOLATILE: | |
369 | { | |
370 | cur = safe_concat (buf, cur, "unspec"); | |
371 | if (GET_CODE (x) == UNSPEC_VOLATILE) | |
372 | cur = safe_concat (buf, cur, "/v"); | |
373 | cur = safe_concat (buf, cur, "["); | |
374 | sep = ""; | |
375 | for (i = 0; i < XVECLEN (x, 0); i++) | |
376 | { | |
377 | print_pattern (tmp, XVECEXP (x, 0, i), verbose); | |
378 | cur = safe_concat (buf, cur, sep); | |
379 | cur = safe_concat (buf, cur, tmp); | |
380 | sep = ","; | |
381 | } | |
382 | cur = safe_concat (buf, cur, "] "); | |
383 | sprintf (tmp, "%d", XINT (x, 1)); | |
384 | cur = safe_concat (buf, cur, tmp); | |
385 | } | |
386 | break; | |
387 | default: | |
388 | /* If (verbose) debug_rtx (x); */ | |
389 | st[0] = GET_RTX_NAME (GET_CODE (x)); | |
390 | break; | |
391 | } | |
392 | ||
393 | /* Print this as a function? */ | |
394 | if (fun) | |
395 | { | |
396 | cur = safe_concat (buf, cur, fun); | |
397 | cur = safe_concat (buf, cur, "("); | |
398 | } | |
399 | ||
400 | for (i = 0; i < 4; i++) | |
401 | { | |
402 | if (st[i]) | |
403 | cur = safe_concat (buf, cur, st[i]); | |
404 | ||
405 | if (op[i]) | |
406 | { | |
407 | if (fun && i != 0) | |
408 | cur = safe_concat (buf, cur, ","); | |
409 | ||
410 | print_value (tmp, op[i], verbose); | |
411 | cur = safe_concat (buf, cur, tmp); | |
412 | } | |
413 | } | |
414 | ||
415 | if (fun) | |
416 | cur = safe_concat (buf, cur, ")"); | |
417 | } /* print_exp */ | |
418 | ||
e0bb17a8 | 419 | /* Prints rtxes, I customarily classified as values. They're constants, |
c62c2659 BS |
420 | registers, labels, symbols and memory accesses. */ |
421 | ||
422 | static void | |
46c5ad27 | 423 | print_value (char *buf, rtx x, int verbose) |
c62c2659 BS |
424 | { |
425 | char t[BUF_LEN]; | |
426 | char *cur = buf; | |
427 | ||
428 | switch (GET_CODE (x)) | |
429 | { | |
430 | case CONST_INT: | |
431 | sprintf (t, HOST_WIDE_INT_PRINT_HEX, INTVAL (x)); | |
432 | cur = safe_concat (buf, cur, t); | |
433 | break; | |
434 | case CONST_DOUBLE: | |
b3ae1ccd | 435 | if (FLOAT_MODE_P (GET_MODE (x))) |
da6eec72 | 436 | real_to_decimal (t, CONST_DOUBLE_REAL_VALUE (x), sizeof (t), 0, 1); |
b3ae1ccd RH |
437 | else |
438 | sprintf (t, "<0x%lx,0x%lx>", (long) XWINT (x, 2), (long) XWINT (x, 3)); | |
c62c2659 BS |
439 | cur = safe_concat (buf, cur, t); |
440 | break; | |
441 | case CONST_STRING: | |
442 | cur = safe_concat (buf, cur, "\""); | |
443 | cur = safe_concat (buf, cur, XSTR (x, 0)); | |
444 | cur = safe_concat (buf, cur, "\""); | |
445 | break; | |
446 | case SYMBOL_REF: | |
447 | cur = safe_concat (buf, cur, "`"); | |
448 | cur = safe_concat (buf, cur, XSTR (x, 0)); | |
449 | cur = safe_concat (buf, cur, "'"); | |
450 | break; | |
451 | case LABEL_REF: | |
452 | sprintf (t, "L%d", INSN_UID (XEXP (x, 0))); | |
453 | cur = safe_concat (buf, cur, t); | |
454 | break; | |
455 | case CONST: | |
456 | print_value (t, XEXP (x, 0), verbose); | |
457 | cur = safe_concat (buf, cur, "const("); | |
458 | cur = safe_concat (buf, cur, t); | |
459 | cur = safe_concat (buf, cur, ")"); | |
460 | break; | |
461 | case HIGH: | |
462 | print_value (t, XEXP (x, 0), verbose); | |
463 | cur = safe_concat (buf, cur, "high("); | |
464 | cur = safe_concat (buf, cur, t); | |
465 | cur = safe_concat (buf, cur, ")"); | |
466 | break; | |
467 | case REG: | |
468 | if (REGNO (x) < FIRST_PSEUDO_REGISTER) | |
469 | { | |
470 | int c = reg_names[REGNO (x)][0]; | |
0df6c2c7 | 471 | if (ISDIGIT (c)) |
c62c2659 BS |
472 | cur = safe_concat (buf, cur, "%"); |
473 | ||
474 | cur = safe_concat (buf, cur, reg_names[REGNO (x)]); | |
475 | } | |
476 | else | |
477 | { | |
478 | sprintf (t, "r%d", REGNO (x)); | |
479 | cur = safe_concat (buf, cur, t); | |
480 | } | |
481 | break; | |
482 | case SUBREG: | |
483 | print_value (t, SUBREG_REG (x), verbose); | |
484 | cur = safe_concat (buf, cur, t); | |
ddef6bc7 | 485 | sprintf (t, "#%d", SUBREG_BYTE (x)); |
c62c2659 BS |
486 | cur = safe_concat (buf, cur, t); |
487 | break; | |
488 | case SCRATCH: | |
489 | cur = safe_concat (buf, cur, "scratch"); | |
490 | break; | |
491 | case CC0: | |
492 | cur = safe_concat (buf, cur, "cc0"); | |
493 | break; | |
494 | case PC: | |
495 | cur = safe_concat (buf, cur, "pc"); | |
496 | break; | |
497 | case MEM: | |
498 | print_value (t, XEXP (x, 0), verbose); | |
499 | cur = safe_concat (buf, cur, "["); | |
500 | cur = safe_concat (buf, cur, t); | |
501 | cur = safe_concat (buf, cur, "]"); | |
502 | break; | |
503 | default: | |
504 | print_exp (t, x, verbose); | |
505 | cur = safe_concat (buf, cur, t); | |
506 | break; | |
507 | } | |
508 | } /* print_value */ | |
509 | ||
510 | /* The next step in insn detalization, its pattern recognition. */ | |
511 | ||
512 | static void | |
46c5ad27 | 513 | print_pattern (char *buf, rtx x, int verbose) |
c62c2659 BS |
514 | { |
515 | char t1[BUF_LEN], t2[BUF_LEN], t3[BUF_LEN]; | |
516 | ||
517 | switch (GET_CODE (x)) | |
518 | { | |
519 | case SET: | |
520 | print_value (t1, SET_DEST (x), verbose); | |
521 | print_value (t2, SET_SRC (x), verbose); | |
522 | sprintf (buf, "%s=%s", t1, t2); | |
523 | break; | |
524 | case RETURN: | |
525 | sprintf (buf, "return"); | |
526 | break; | |
527 | case CALL: | |
528 | print_exp (buf, x, verbose); | |
529 | break; | |
530 | case CLOBBER: | |
531 | print_value (t1, XEXP (x, 0), verbose); | |
532 | sprintf (buf, "clobber %s", t1); | |
533 | break; | |
534 | case USE: | |
535 | print_value (t1, XEXP (x, 0), verbose); | |
536 | sprintf (buf, "use %s", t1); | |
537 | break; | |
538 | case COND_EXEC: | |
539 | if (GET_CODE (COND_EXEC_TEST (x)) == NE | |
540 | && XEXP (COND_EXEC_TEST (x), 1) == const0_rtx) | |
541 | print_value (t1, XEXP (COND_EXEC_TEST (x), 0), verbose); | |
542 | else if (GET_CODE (COND_EXEC_TEST (x)) == EQ | |
786de7eb KH |
543 | && XEXP (COND_EXEC_TEST (x), 1) == const0_rtx) |
544 | { | |
c62c2659 BS |
545 | t1[0] = '!'; |
546 | print_value (t1 + 1, XEXP (COND_EXEC_TEST (x), 0), verbose); | |
547 | } | |
548 | else | |
786de7eb | 549 | print_value (t1, COND_EXEC_TEST (x), verbose); |
c62c2659 BS |
550 | print_pattern (t2, COND_EXEC_CODE (x), verbose); |
551 | sprintf (buf, "(%s) %s", t1, t2); | |
552 | break; | |
553 | case PARALLEL: | |
554 | { | |
555 | int i; | |
556 | ||
557 | sprintf (t1, "{"); | |
558 | for (i = 0; i < XVECLEN (x, 0); i++) | |
559 | { | |
560 | print_pattern (t2, XVECEXP (x, 0, i), verbose); | |
561 | sprintf (t3, "%s%s;", t1, t2); | |
562 | strcpy (t1, t3); | |
563 | } | |
564 | sprintf (buf, "%s}", t1); | |
565 | } | |
566 | break; | |
567 | case SEQUENCE: | |
2f937369 DM |
568 | /* Should never see SEQUENCE codes until after reorg. */ |
569 | abort (); | |
c62c2659 BS |
570 | break; |
571 | case ASM_INPUT: | |
572 | sprintf (buf, "asm {%s}", XSTR (x, 0)); | |
573 | break; | |
574 | case ADDR_VEC: | |
575 | break; | |
576 | case ADDR_DIFF_VEC: | |
577 | print_value (buf, XEXP (x, 0), verbose); | |
578 | break; | |
579 | case TRAP_IF: | |
580 | print_value (t1, TRAP_CONDITION (x), verbose); | |
581 | sprintf (buf, "trap_if %s", t1); | |
582 | break; | |
583 | case UNSPEC: | |
584 | { | |
585 | int i; | |
586 | ||
587 | sprintf (t1, "unspec{"); | |
588 | for (i = 0; i < XVECLEN (x, 0); i++) | |
589 | { | |
590 | print_pattern (t2, XVECEXP (x, 0, i), verbose); | |
591 | sprintf (t3, "%s%s;", t1, t2); | |
592 | strcpy (t1, t3); | |
593 | } | |
594 | sprintf (buf, "%s}", t1); | |
595 | } | |
596 | break; | |
597 | case UNSPEC_VOLATILE: | |
598 | { | |
599 | int i; | |
600 | ||
601 | sprintf (t1, "unspec/v{"); | |
602 | for (i = 0; i < XVECLEN (x, 0); i++) | |
603 | { | |
604 | print_pattern (t2, XVECEXP (x, 0, i), verbose); | |
605 | sprintf (t3, "%s%s;", t1, t2); | |
606 | strcpy (t1, t3); | |
607 | } | |
608 | sprintf (buf, "%s}", t1); | |
609 | } | |
610 | break; | |
611 | default: | |
612 | print_value (buf, x, verbose); | |
613 | } | |
614 | } /* print_pattern */ | |
615 | ||
616 | /* This is the main function in rtl visualization mechanism. It | |
617 | accepts an rtx and tries to recognize it as an insn, then prints it | |
618 | properly in human readable form, resembling assembler mnemonics. | |
619 | For every insn it prints its UID and BB the insn belongs too. | |
620 | (Probably the last "option" should be extended somehow, since it | |
621 | depends now on sched.c inner variables ...) */ | |
622 | ||
6d0de005 | 623 | void |
46c5ad27 | 624 | print_insn (char *buf, rtx x, int verbose) |
c62c2659 BS |
625 | { |
626 | char t[BUF_LEN]; | |
627 | rtx insn = x; | |
628 | ||
629 | switch (GET_CODE (x)) | |
630 | { | |
631 | case INSN: | |
632 | print_pattern (t, PATTERN (x), verbose); | |
633 | if (verbose) | |
634 | sprintf (buf, "%s: %s", (*current_sched_info->print_insn) (x, 1), | |
635 | t); | |
636 | else | |
637 | sprintf (buf, "%-4d %s", INSN_UID (x), t); | |
638 | break; | |
639 | case JUMP_INSN: | |
640 | print_pattern (t, PATTERN (x), verbose); | |
641 | if (verbose) | |
642 | sprintf (buf, "%s: jump %s", (*current_sched_info->print_insn) (x, 1), | |
643 | t); | |
644 | else | |
645 | sprintf (buf, "%-4d %s", INSN_UID (x), t); | |
646 | break; | |
647 | case CALL_INSN: | |
648 | x = PATTERN (insn); | |
649 | if (GET_CODE (x) == PARALLEL) | |
650 | { | |
651 | x = XVECEXP (x, 0, 0); | |
652 | print_pattern (t, x, verbose); | |
653 | } | |
654 | else | |
655 | strcpy (t, "call <...>"); | |
656 | if (verbose) | |
657 | sprintf (buf, "%s: %s", (*current_sched_info->print_insn) (x, 1), t); | |
658 | else | |
659 | sprintf (buf, "%-4d %s", INSN_UID (insn), t); | |
660 | break; | |
661 | case CODE_LABEL: | |
662 | sprintf (buf, "L%d:", INSN_UID (x)); | |
663 | break; | |
664 | case BARRIER: | |
665 | sprintf (buf, "i% 4d: barrier", INSN_UID (x)); | |
666 | break; | |
667 | case NOTE: | |
668 | if (NOTE_LINE_NUMBER (x) > 0) | |
9506ac2b PB |
669 | { |
670 | expanded_location xloc; | |
671 | NOTE_EXPANDED_LOCATION (xloc, x); | |
672 | sprintf (buf, "%4d note \"%s\" %d", INSN_UID (x), | |
673 | xloc.file, xloc.line); | |
674 | } | |
c62c2659 BS |
675 | else |
676 | sprintf (buf, "%4d %s", INSN_UID (x), | |
677 | GET_NOTE_INSN_NAME (NOTE_LINE_NUMBER (x))); | |
678 | break; | |
679 | default: | |
680 | if (verbose) | |
681 | { | |
682 | sprintf (buf, "Not an INSN at all\n"); | |
683 | debug_rtx (x); | |
684 | } | |
685 | else | |
686 | sprintf (buf, "i%-4d <What?>", INSN_UID (x)); | |
687 | } | |
688 | } /* print_insn */ | |
689 | ||
f56887a7 | 690 | #endif |