1 /* Print RTL for GCC. 2 Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003, 3 2004, 2005, 2007, 2008, 2009, 2010, 2011 4 Free Software Foundation, Inc. 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free 10 Software Foundation; either version 3, or (at your option) any later 11 version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16 for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 /* This file is compiled twice: once for the generator programs, 23 once for the compiler. */ 24 #ifdef GENERATOR_FILE 25 #include "bconfig.h" 26 #else 27 #include "config.h" 28 #endif 29 30 #include "system.h" 31 #include "coretypes.h" 32 #include "tm.h" 33 #include "rtl.h" 34 35 /* These headers all define things which are not available in 36 generator programs. */ 37 #ifndef GENERATOR_FILE 38 #include "tree.h" 39 #include "flags.h" 40 #include "hard-reg-set.h" 41 #include "basic-block.h" 42 #include "diagnostic.h" 43 #include "tree-pretty-print.h" 44 #include "cselib.h" 45 #include "tree-pass.h" 46 #include "dwarf2out.h" 47 #endif 48 49 static FILE *outfile; 50 51 static int sawclose = 0; 52 53 static int indent; 54 55 static void print_rtx (const_rtx); 56 57 /* String printed at beginning of each RTL when it is dumped. 58 This string is set to ASM_COMMENT_START when the RTL is dumped in 59 the assembly output file. */ 60 const char *print_rtx_head = ""; 61 62 #ifdef GENERATOR_FILE 63 /* These are defined from the .opt file when not used in generator 64 programs. */ 65 66 /* Nonzero means suppress output of instruction numbers 67 in debugging dumps. 68 This must be defined here so that programs like gencodes can be linked. */ 69 int flag_dump_unnumbered = 0; 70 71 /* Nonzero means suppress output of instruction numbers for previous 72 and next insns in debugging dumps. 73 This must be defined here so that programs like gencodes can be linked. */ 74 int flag_dump_unnumbered_links = 0; 75 #endif 76 77 /* Nonzero means use simplified format without flags, modes, etc. */ 78 int flag_simple = 0; 79 80 /* Nonzero if we are dumping graphical description. */ 81 int dump_for_graph; 82 83 #ifndef GENERATOR_FILE 84 void 85 print_mem_expr (FILE *outfile, const_tree expr) 86 { 87 fputc (' ', outfile); 88 print_generic_expr (outfile, CONST_CAST_TREE (expr), dump_flags); 89 } 90 #endif 91 92 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */ 93 94 static void 95 print_rtx (const_rtx in_rtx) 96 { 97 int i = 0; 98 int j; 99 const char *format_ptr; 100 int is_insn; 101 102 if (sawclose) 103 { 104 if (flag_simple) 105 fputc (' ', outfile); 106 else 107 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, ""); 108 sawclose = 0; 109 } 110 111 if (in_rtx == 0) 112 { 113 fputs ("(nil)", outfile); 114 sawclose = 1; 115 return; 116 } 117 else if (GET_CODE (in_rtx) > NUM_RTX_CODE) 118 { 119 fprintf (outfile, "(??? bad code %d\n%s%*s)", GET_CODE (in_rtx), 120 print_rtx_head, indent * 2, ""); 121 sawclose = 1; 122 return; 123 } 124 125 is_insn = INSN_P (in_rtx); 126 127 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER 128 in separate nodes and therefore have to handle them special here. */ 129 if (dump_for_graph 130 && (is_insn || NOTE_P (in_rtx) 131 || LABEL_P (in_rtx) || BARRIER_P (in_rtx))) 132 { 133 i = 3; 134 indent = 0; 135 } 136 else 137 { 138 /* Print name of expression code. */ 139 if (flag_simple && CONST_INT_P (in_rtx)) 140 fputc ('(', outfile); 141 else 142 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx))); 143 144 if (! flag_simple) 145 { 146 if (RTX_FLAG (in_rtx, in_struct)) 147 fputs ("/s", outfile); 148 149 if (RTX_FLAG (in_rtx, volatil)) 150 fputs ("/v", outfile); 151 152 if (RTX_FLAG (in_rtx, unchanging)) 153 fputs ("/u", outfile); 154 155 if (RTX_FLAG (in_rtx, frame_related)) 156 fputs ("/f", outfile); 157 158 if (RTX_FLAG (in_rtx, jump)) 159 fputs ("/j", outfile); 160 161 if (RTX_FLAG (in_rtx, call)) 162 fputs ("/c", outfile); 163 164 if (RTX_FLAG (in_rtx, return_val)) 165 fputs ("/i", outfile); 166 167 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */ 168 if ((GET_CODE (in_rtx) == EXPR_LIST 169 || GET_CODE (in_rtx) == INSN_LIST) 170 && (int)GET_MODE (in_rtx) < REG_NOTE_MAX) 171 fprintf (outfile, ":%s", 172 GET_REG_NOTE_NAME (GET_MODE (in_rtx))); 173 174 /* For other rtl, print the mode if it's not VOID. */ 175 else if (GET_MODE (in_rtx) != VOIDmode) 176 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx))); 177 178 #ifndef GENERATOR_FILE 179 if (GET_CODE (in_rtx) == VAR_LOCATION) 180 { 181 if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST) 182 fputs (" <debug string placeholder>", outfile); 183 else 184 print_mem_expr (outfile, PAT_VAR_LOCATION_DECL (in_rtx)); 185 fputc (' ', outfile); 186 print_rtx (PAT_VAR_LOCATION_LOC (in_rtx)); 187 if (PAT_VAR_LOCATION_STATUS (in_rtx) 188 == VAR_INIT_STATUS_UNINITIALIZED) 189 fprintf (outfile, " [uninit]"); 190 sawclose = 1; 191 i = GET_RTX_LENGTH (VAR_LOCATION); 192 } 193 #endif 194 } 195 } 196 197 #ifndef GENERATOR_FILE 198 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx))) 199 i = 5; 200 #endif 201 202 /* Get the format string and skip the first elements if we have handled 203 them already. */ 204 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i; 205 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++) 206 switch (*format_ptr++) 207 { 208 const char *str; 209 210 case 'T': 211 str = XTMPL (in_rtx, i); 212 goto string; 213 214 case 'S': 215 case 's': 216 str = XSTR (in_rtx, i); 217 string: 218 219 if (str == 0) 220 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile); 221 else 222 { 223 if (dump_for_graph) 224 fprintf (outfile, " (\\\"%s\\\")", str); 225 else 226 fprintf (outfile, " (\"%s\")", str); 227 } 228 sawclose = 1; 229 break; 230 231 /* 0 indicates a field for internal use that should not be printed. 232 An exception is the third field of a NOTE, where it indicates 233 that the field has several different valid contents. */ 234 case '0': 235 if (i == 1 && REG_P (in_rtx)) 236 { 237 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx)) 238 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx)); 239 } 240 #ifndef GENERATOR_FILE 241 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF) 242 { 243 int flags = SYMBOL_REF_FLAGS (in_rtx); 244 if (flags) 245 fprintf (outfile, " [flags %#x]", flags); 246 } 247 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF) 248 { 249 tree decl = SYMBOL_REF_DECL (in_rtx); 250 if (decl) 251 print_node_brief (outfile, "", decl, dump_flags); 252 } 253 #endif 254 else if (i == 4 && NOTE_P (in_rtx)) 255 { 256 switch (NOTE_KIND (in_rtx)) 257 { 258 case NOTE_INSN_EH_REGION_BEG: 259 case NOTE_INSN_EH_REGION_END: 260 if (flag_dump_unnumbered) 261 fprintf (outfile, " #"); 262 else 263 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx)); 264 sawclose = 1; 265 break; 266 267 case NOTE_INSN_BLOCK_BEG: 268 case NOTE_INSN_BLOCK_END: 269 #ifndef GENERATOR_FILE 270 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx)); 271 #endif 272 sawclose = 1; 273 break; 274 275 case NOTE_INSN_BASIC_BLOCK: 276 { 277 #ifndef GENERATOR_FILE 278 basic_block bb = NOTE_BASIC_BLOCK (in_rtx); 279 if (bb != 0) 280 fprintf (outfile, " [bb %d]", bb->index); 281 #endif 282 break; 283 } 284 285 case NOTE_INSN_DELETED_LABEL: 286 case NOTE_INSN_DELETED_DEBUG_LABEL: 287 { 288 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx); 289 if (label) 290 fprintf (outfile, " (\"%s\")", label); 291 else 292 fprintf (outfile, " \"\""); 293 } 294 break; 295 296 case NOTE_INSN_SWITCH_TEXT_SECTIONS: 297 { 298 #ifndef GENERATOR_FILE 299 basic_block bb = NOTE_BASIC_BLOCK (in_rtx); 300 if (bb != 0) 301 fprintf (outfile, " [bb %d]", bb->index); 302 #endif 303 break; 304 } 305 306 case NOTE_INSN_VAR_LOCATION: 307 case NOTE_INSN_CALL_ARG_LOCATION: 308 #ifndef GENERATOR_FILE 309 fputc (' ', outfile); 310 print_rtx (NOTE_VAR_LOCATION (in_rtx)); 311 #endif 312 break; 313 314 case NOTE_INSN_CFI: 315 #ifndef GENERATOR_FILE 316 fputc ('\n', outfile); 317 output_cfi_directive (outfile, NOTE_CFI (in_rtx)); 318 fputc ('\t', outfile); 319 #endif 320 break; 321 322 default: 323 break; 324 } 325 } 326 else if (i == 8 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL) 327 { 328 /* Output the JUMP_LABEL reference. */ 329 fprintf (outfile, "\n%s%*s -> ", print_rtx_head, indent * 2, ""); 330 if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN) 331 fprintf (outfile, "return"); 332 else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN) 333 fprintf (outfile, "simple_return"); 334 else 335 fprintf (outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx))); 336 } 337 else if (i == 0 && GET_CODE (in_rtx) == VALUE) 338 { 339 #ifndef GENERATOR_FILE 340 cselib_val *val = CSELIB_VAL_PTR (in_rtx); 341 342 fprintf (outfile, " %u:%u", val->uid, val->hash); 343 dump_addr (outfile, " @", in_rtx); 344 dump_addr (outfile, "/", (void*)val); 345 #endif 346 } 347 else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR) 348 { 349 #ifndef GENERATOR_FILE 350 fprintf (outfile, " D#%i", 351 DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx))); 352 #endif 353 } 354 else if (i == 0 && GET_CODE (in_rtx) == ENTRY_VALUE) 355 { 356 indent += 2; 357 if (!sawclose) 358 fprintf (outfile, " "); 359 print_rtx (ENTRY_VALUE_EXP (in_rtx)); 360 indent -= 2; 361 } 362 break; 363 364 case 'e': 365 do_e: 366 indent += 2; 367 if (i == 7 && INSN_P (in_rtx)) 368 /* Put REG_NOTES on their own line. */ 369 fprintf (outfile, "\n%s%*s", 370 print_rtx_head, indent * 2, ""); 371 if (!sawclose) 372 fprintf (outfile, " "); 373 print_rtx (XEXP (in_rtx, i)); 374 indent -= 2; 375 break; 376 377 case 'E': 378 case 'V': 379 indent += 2; 380 if (sawclose) 381 { 382 fprintf (outfile, "\n%s%*s", 383 print_rtx_head, indent * 2, ""); 384 sawclose = 0; 385 } 386 fputs (" [", outfile); 387 if (NULL != XVEC (in_rtx, i)) 388 { 389 indent += 2; 390 if (XVECLEN (in_rtx, i)) 391 sawclose = 1; 392 393 for (j = 0; j < XVECLEN (in_rtx, i); j++) 394 print_rtx (XVECEXP (in_rtx, i, j)); 395 396 indent -= 2; 397 } 398 if (sawclose) 399 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, ""); 400 401 fputs ("]", outfile); 402 sawclose = 1; 403 indent -= 2; 404 break; 405 406 case 'w': 407 if (! flag_simple) 408 fprintf (outfile, " "); 409 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i)); 410 if (! flag_simple) 411 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]", 412 (unsigned HOST_WIDE_INT) XWINT (in_rtx, i)); 413 break; 414 415 case 'i': 416 if (i == 5 && INSN_P (in_rtx)) 417 { 418 #ifndef GENERATOR_FILE 419 /* Pretty-print insn locators. Ignore scoping as it is mostly 420 redundant with line number information and do not print anything 421 when there is no location information available. */ 422 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx)) 423 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx)); 424 #endif 425 } 426 else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS) 427 { 428 #ifndef GENERATOR_FILE 429 fprintf (outfile, " %s:%i", 430 locator_file (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)), 431 locator_line (ASM_OPERANDS_SOURCE_LOCATION (in_rtx))); 432 #endif 433 } 434 else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT) 435 { 436 #ifndef GENERATOR_FILE 437 fprintf (outfile, " %s:%i", 438 locator_file (ASM_INPUT_SOURCE_LOCATION (in_rtx)), 439 locator_line (ASM_INPUT_SOURCE_LOCATION (in_rtx))); 440 #endif 441 } 442 else if (i == 6 && NOTE_P (in_rtx)) 443 { 444 /* This field is only used for NOTE_INSN_DELETED_LABEL, and 445 other times often contains garbage from INSN->NOTE death. */ 446 if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL 447 || NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_DEBUG_LABEL) 448 fprintf (outfile, " %d", XINT (in_rtx, i)); 449 } 450 #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0 451 else if (i == 1 452 && GET_CODE (in_rtx) == UNSPEC_VOLATILE 453 && XINT (in_rtx, 1) >= 0 454 && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES) 455 fprintf (outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]); 456 #endif 457 #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0 458 else if (i == 1 459 && (GET_CODE (in_rtx) == UNSPEC 460 || GET_CODE (in_rtx) == UNSPEC_VOLATILE) 461 && XINT (in_rtx, 1) >= 0 462 && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES) 463 fprintf (outfile, " %s", unspec_strings[XINT (in_rtx, 1)]); 464 #endif 465 else 466 { 467 int value = XINT (in_rtx, i); 468 const char *name; 469 470 #ifndef GENERATOR_FILE 471 if (REG_P (in_rtx) && (unsigned) value < FIRST_PSEUDO_REGISTER) 472 fprintf (outfile, " %d %s", value, reg_names[value]); 473 else if (REG_P (in_rtx) 474 && (unsigned) value <= LAST_VIRTUAL_REGISTER) 475 { 476 if (value == VIRTUAL_INCOMING_ARGS_REGNUM) 477 fprintf (outfile, " %d virtual-incoming-args", value); 478 else if (value == VIRTUAL_STACK_VARS_REGNUM) 479 fprintf (outfile, " %d virtual-stack-vars", value); 480 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM) 481 fprintf (outfile, " %d virtual-stack-dynamic", value); 482 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM) 483 fprintf (outfile, " %d virtual-outgoing-args", value); 484 else if (value == VIRTUAL_CFA_REGNUM) 485 fprintf (outfile, " %d virtual-cfa", value); 486 else if (value == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM) 487 fprintf (outfile, " %d virtual-preferred-stack-boundary", 488 value); 489 else 490 fprintf (outfile, " %d virtual-reg-%d", value, 491 value-FIRST_VIRTUAL_REGISTER); 492 } 493 else 494 #endif 495 if (flag_dump_unnumbered 496 && (is_insn || NOTE_P (in_rtx))) 497 fputc ('#', outfile); 498 else 499 fprintf (outfile, " %d", value); 500 501 #ifndef GENERATOR_FILE 502 if (REG_P (in_rtx) && REG_ATTRS (in_rtx)) 503 { 504 fputs (" [", outfile); 505 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx)) 506 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx)); 507 if (REG_EXPR (in_rtx)) 508 print_mem_expr (outfile, REG_EXPR (in_rtx)); 509 510 if (REG_OFFSET (in_rtx)) 511 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, 512 REG_OFFSET (in_rtx)); 513 fputs (" ]", outfile); 514 } 515 #endif 516 517 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i) 518 && XINT (in_rtx, i) >= 0 519 && (name = get_insn_name (XINT (in_rtx, i))) != NULL) 520 fprintf (outfile, " {%s}", name); 521 sawclose = 0; 522 } 523 break; 524 525 /* Print NOTE_INSN names rather than integer codes. */ 526 527 case 'n': 528 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i))); 529 sawclose = 0; 530 break; 531 532 case 'u': 533 if (XEXP (in_rtx, i) != NULL) 534 { 535 rtx sub = XEXP (in_rtx, i); 536 enum rtx_code subc = GET_CODE (sub); 537 538 if (GET_CODE (in_rtx) == LABEL_REF) 539 { 540 if (subc == NOTE 541 && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL) 542 { 543 if (flag_dump_unnumbered) 544 fprintf (outfile, " [# deleted]"); 545 else 546 fprintf (outfile, " [%d deleted]", INSN_UID (sub)); 547 sawclose = 0; 548 break; 549 } 550 551 if (subc != CODE_LABEL) 552 goto do_e; 553 } 554 555 if (flag_dump_unnumbered 556 || (flag_dump_unnumbered_links && (i == 1 || i == 2) 557 && (INSN_P (in_rtx) || NOTE_P (in_rtx) 558 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))) 559 fputs (" #", outfile); 560 else 561 fprintf (outfile, " %d", INSN_UID (sub)); 562 } 563 else 564 fputs (" 0", outfile); 565 sawclose = 0; 566 break; 567 568 case 't': 569 #ifndef GENERATOR_FILE 570 if (i == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR) 571 print_mem_expr (outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx)); 572 else if (i == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF) 573 print_mem_expr (outfile, DEBUG_PARAMETER_REF_DECL (in_rtx)); 574 else 575 dump_addr (outfile, " ", XTREE (in_rtx, i)); 576 #endif 577 break; 578 579 case '*': 580 fputs (" Unknown", outfile); 581 sawclose = 0; 582 break; 583 584 case 'B': 585 #ifndef GENERATOR_FILE 586 if (XBBDEF (in_rtx, i)) 587 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index); 588 #endif 589 break; 590 591 default: 592 gcc_unreachable (); 593 } 594 595 switch (GET_CODE (in_rtx)) 596 { 597 #ifndef GENERATOR_FILE 598 case MEM: 599 if (__builtin_expect (final_insns_dump_p, false)) 600 fprintf (outfile, " ["); 601 else 602 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, 603 (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx)); 604 605 if (MEM_EXPR (in_rtx)) 606 print_mem_expr (outfile, MEM_EXPR (in_rtx)); 607 608 if (MEM_OFFSET_KNOWN_P (in_rtx)) 609 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, MEM_OFFSET (in_rtx)); 610 611 if (MEM_SIZE_KNOWN_P (in_rtx)) 612 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC, MEM_SIZE (in_rtx)); 613 614 if (MEM_ALIGN (in_rtx) != 1) 615 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx)); 616 617 if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx))) 618 fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx)); 619 620 fputc (']', outfile); 621 break; 622 623 case CONST_DOUBLE: 624 if (FLOAT_MODE_P (GET_MODE (in_rtx))) 625 { 626 char s[60]; 627 628 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx), 629 sizeof (s), 0, 1); 630 fprintf (outfile, " %s", s); 631 632 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx), 633 sizeof (s), 0, 1); 634 fprintf (outfile, " [%s]", s); 635 } 636 break; 637 #endif 638 639 case CODE_LABEL: 640 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx)); 641 switch (LABEL_KIND (in_rtx)) 642 { 643 case LABEL_NORMAL: break; 644 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break; 645 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break; 646 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break; 647 default: gcc_unreachable (); 648 } 649 break; 650 651 default: 652 break; 653 } 654 655 if (dump_for_graph 656 && (is_insn || NOTE_P (in_rtx) 657 || LABEL_P (in_rtx) || BARRIER_P (in_rtx))) 658 sawclose = 0; 659 else 660 { 661 fputc (')', outfile); 662 sawclose = 1; 663 } 664 } 665 666 /* Print an rtx on the current line of FILE. Initially indent IND 667 characters. */ 668 669 void 670 print_inline_rtx (FILE *outf, const_rtx x, int ind) 671 { 672 int oldsaw = sawclose; 673 int oldindent = indent; 674 675 sawclose = 0; 676 indent = ind; 677 outfile = outf; 678 print_rtx (x); 679 sawclose = oldsaw; 680 indent = oldindent; 681 } 682 683 /* Call this function from the debugger to see what X looks like. */ 684 685 DEBUG_FUNCTION void 686 debug_rtx (const_rtx x) 687 { 688 outfile = stderr; 689 sawclose = 0; 690 print_rtx (x); 691 fprintf (stderr, "\n"); 692 } 693 694 /* Count of rtx's to print with debug_rtx_list. 695 This global exists because gdb user defined commands have no arguments. */ 696 697 DEBUG_VARIABLE int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */ 698 699 /* Call this function to print list from X on. 700 701 N is a count of the rtx's to print. Positive values print from the specified 702 rtx on. Negative values print a window around the rtx. 703 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */ 704 705 DEBUG_FUNCTION void 706 debug_rtx_list (const_rtx x, int n) 707 { 708 int i,count; 709 const_rtx insn; 710 711 count = n == 0 ? 1 : n < 0 ? -n : n; 712 713 /* If we are printing a window, back up to the start. */ 714 715 if (n < 0) 716 for (i = count / 2; i > 0; i--) 717 { 718 if (PREV_INSN (x) == 0) 719 break; 720 x = PREV_INSN (x); 721 } 722 723 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn)) 724 { 725 debug_rtx (insn); 726 fprintf (stderr, "\n"); 727 } 728 } 729 730 /* Call this function to print an rtx list from START to END inclusive. */ 731 732 DEBUG_FUNCTION void 733 debug_rtx_range (const_rtx start, const_rtx end) 734 { 735 while (1) 736 { 737 debug_rtx (start); 738 fprintf (stderr, "\n"); 739 if (!start || start == end) 740 break; 741 start = NEXT_INSN (start); 742 } 743 } 744 745 /* Call this function to search an rtx list to find one with insn uid UID, 746 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT. 747 The found insn is returned to enable further debugging analysis. */ 748 749 DEBUG_FUNCTION const_rtx 750 debug_rtx_find (const_rtx x, int uid) 751 { 752 while (x != 0 && INSN_UID (x) != uid) 753 x = NEXT_INSN (x); 754 if (x != 0) 755 { 756 debug_rtx_list (x, debug_rtx_count); 757 return x; 758 } 759 else 760 { 761 fprintf (stderr, "insn uid %d not found\n", uid); 762 return 0; 763 } 764 } 765 766 /* External entry point for printing a chain of insns 767 starting with RTX_FIRST onto file OUTF. 768 A blank line separates insns. 769 770 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */ 771 772 void 773 print_rtl (FILE *outf, const_rtx rtx_first) 774 { 775 const_rtx tmp_rtx; 776 777 outfile = outf; 778 sawclose = 0; 779 780 if (rtx_first == 0) 781 { 782 fputs (print_rtx_head, outf); 783 fputs ("(nil)\n", outf); 784 } 785 else 786 switch (GET_CODE (rtx_first)) 787 { 788 case INSN: 789 case JUMP_INSN: 790 case CALL_INSN: 791 case NOTE: 792 case CODE_LABEL: 793 case BARRIER: 794 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx)) 795 { 796 fputs (print_rtx_head, outfile); 797 print_rtx (tmp_rtx); 798 fprintf (outfile, "\n"); 799 } 800 break; 801 802 default: 803 fputs (print_rtx_head, outfile); 804 print_rtx (rtx_first); 805 } 806 } 807 808 /* Like print_rtx, except specify a file. */ 809 /* Return nonzero if we actually printed anything. */ 810 811 int 812 print_rtl_single (FILE *outf, const_rtx x) 813 { 814 outfile = outf; 815 sawclose = 0; 816 fputs (print_rtx_head, outfile); 817 print_rtx (x); 818 putc ('\n', outf); 819 return 1; 820 } 821 822 823 /* Like print_rtl except without all the detail; for example, 824 if RTX is a CONST_INT then print in decimal format. */ 825 826 void 827 print_simple_rtl (FILE *outf, const_rtx x) 828 { 829 flag_simple = 1; 830 print_rtl (outf, x); 831 flag_simple = 0; 832 } 833