gcc/print-rtl.c

   1 /* Print RTL for GCC.
   2    Copyright (C) 1987-2014 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 /* This file is compiled twice: once for the generator programs,
  21    once for the compiler.  */
  22 #ifdef GENERATOR_FILE
  23 #include "bconfig.h"
  24 #else
  25 #include "config.h"
  26 #endif
  27
  28 #include "system.h"
  29 #include "coretypes.h"
  30 #include "tm.h"
  31 #include "rtl.h"
  32
  33 /* These headers all define things which are not available in
  34    generator programs.  */
  35 #ifndef GENERATOR_FILE
  36 #include "tree.h"
  37 #include "print-tree.h"
  38 #include "flags.h"
  39 #include "hard-reg-set.h"
  40 #include "basic-block.h"
  41 #include "diagnostic.h"
  42 #include "tree-pretty-print.h"
  43 #include "cselib.h"
  44 #include "dumpfile.h"   /* for dump_flags */
  45 #include "dwarf2out.h"
  46 #endif
  47
  48 static FILE *outfile;
  49
  50 static int sawclose = 0;
  51
  52 static int indent;
  53
  54 static bool in_call_function_usage;
  55
  56 static void print_rtx (const_rtx);
  57
  58 /* String printed at beginning of each RTL when it is dumped.
  59    This string is set to ASM_COMMENT_START when the RTL is dumped in
  60    the assembly output file.  */
  61 const char *print_rtx_head = "";
  62
  63 #ifdef GENERATOR_FILE
  64 /* These are defined from the .opt file when not used in generator
  65    programs.  */
  66
  67 /* Nonzero means suppress output of instruction numbers
  68    in debugging dumps.
  69    This must be defined here so that programs like gencodes can be linked.  */
  70 int flag_dump_unnumbered = 0;
  71
  72 /* Nonzero means suppress output of instruction numbers for previous
  73    and next insns in debugging dumps.
  74    This must be defined here so that programs like gencodes can be linked.  */
  75 int flag_dump_unnumbered_links = 0;
  76 #endif
  77
  78 /* Nonzero means use simplified format without flags, modes, etc.  */
  79 int flag_simple = 0;
  80
  81 #ifndef GENERATOR_FILE
  82 void
  83 print_mem_expr (FILE *outfile, const_tree expr)
  84 {
  85   fputc (' ', outfile);
  86   print_generic_expr (outfile, CONST_CAST_TREE (expr), dump_flags);
  87 }
  88 #endif
  89
  90 /* Print IN_RTX onto OUTFILE.  This is the recursive part of printing.  */
  91
  92 static void
  93 print_rtx (const_rtx in_rtx)
  94 {
  95   int i = 0;
  96   int j;
  97   const char *format_ptr;
  98   int is_insn;
  99
 100   if (sawclose)
 101     {
 102       if (flag_simple)
 103         fputc (' ', outfile);
 104       else
 105         fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
 106       sawclose = 0;
 107     }
 108
 109   if (in_rtx == 0)
 110     {
 111       fputs ("(nil)", outfile);
 112       sawclose = 1;
 113       return;
 114     }
 115   else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
 116     {
 117        fprintf (outfile, "(??? bad code %d\n%s%*s)", GET_CODE (in_rtx),
 118                 print_rtx_head, indent * 2, "");
 119        sawclose = 1;
 120        return;
 121     }
 122
 123   is_insn = INSN_P (in_rtx);
 124
 125   /* Print name of expression code.  */
 126   if (flag_simple && CONST_INT_P (in_rtx))
 127     fputc ('(', outfile);
 128   else
 129     fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
 130
 131   if (! flag_simple)
 132     {
 133       if (RTX_FLAG (in_rtx, in_struct))
 134         fputs ("/s", outfile);
 135
 136       if (RTX_FLAG (in_rtx, volatil))
 137         fputs ("/v", outfile);
 138
 139       if (RTX_FLAG (in_rtx, unchanging))
 140         fputs ("/u", outfile);
 141
 142       if (RTX_FLAG (in_rtx, frame_related))
 143         fputs ("/f", outfile);
 144
 145       if (RTX_FLAG (in_rtx, jump))
 146         fputs ("/j", outfile);
 147
 148       if (RTX_FLAG (in_rtx, call))
 149         fputs ("/c", outfile);
 150
 151       if (RTX_FLAG (in_rtx, return_val))
 152         fputs ("/i", outfile);
 153
 154       /* Print REG_NOTE names for EXPR_LIST and INSN_LIST.  */
 155       if ((GET_CODE (in_rtx) == EXPR_LIST
 156            || GET_CODE (in_rtx) == INSN_LIST
 157            || GET_CODE (in_rtx) == INT_LIST)
 158           && (int)GET_MODE (in_rtx) < REG_NOTE_MAX
 159           && !in_call_function_usage)
 160         fprintf (outfile, ":%s",
 161                  GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
 162
 163       /* For other rtl, print the mode if it's not VOID.  */
 164       else if (GET_MODE (in_rtx) != VOIDmode)
 165         fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
 166
 167 #ifndef GENERATOR_FILE
 168       if (GET_CODE (in_rtx) == VAR_LOCATION)
 169         {
 170           if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST)
 171             fputs (" <debug string placeholder>", outfile);
 172           else
 173             print_mem_expr (outfile, PAT_VAR_LOCATION_DECL (in_rtx));
 174           fputc (' ', outfile);
 175           print_rtx (PAT_VAR_LOCATION_LOC (in_rtx));
 176           if (PAT_VAR_LOCATION_STATUS (in_rtx)
 177               == VAR_INIT_STATUS_UNINITIALIZED)
 178             fprintf (outfile, " [uninit]");
 179           sawclose = 1;
 180           i = GET_RTX_LENGTH (VAR_LOCATION);
 181         }
 182 #endif
 183     }
 184
 185 #ifndef GENERATOR_FILE
 186   if (CONST_DOUBLE_AS_FLOAT_P (in_rtx))
 187     i = 5;
 188 #endif
 189
 190   if (INSN_CHAIN_CODE_P (GET_CODE (in_rtx)))
 191     {
 192       if (flag_dump_unnumbered)
 193         fprintf (outfile, " #");
 194       else
 195         fprintf (outfile, " %d", INSN_UID (in_rtx));
 196     }
 197
 198   /* Get the format string and skip the first elements if we have handled
 199      them already.  */
 200   format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
 201   for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
 202     switch (*format_ptr++)
 203       {
 204         const char *str;
 205
 206       case 'T':
 207         str = XTMPL (in_rtx, i);
 208         goto string;
 209
 210       case 'S':
 211       case 's':
 212         str = XSTR (in_rtx, i);
 213       string:
 214
 215         if (str == 0)
 216           fputs (" \"\"", outfile);
 217         else
 218           fprintf (outfile, " (\"%s\")", str);
 219         sawclose = 1;
 220         break;
 221
 222         /* 0 indicates a field for internal use that should not be printed.
 223            An exception is the third field of a NOTE, where it indicates
 224            that the field has several different valid contents.  */
 225       case '0':
 226 #ifndef GENERATOR_FILE
 227         if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
 228           {
 229             int flags = SYMBOL_REF_FLAGS (in_rtx);
 230             if (flags)
 231               fprintf (outfile, " [flags %#x]", flags);
 232             tree decl = SYMBOL_REF_DECL (in_rtx);
 233             if (decl)
 234               print_node_brief (outfile, "", decl, dump_flags);
 235           }
 236         else if (i == 3 && NOTE_P (in_rtx))
 237           {
 238             switch (NOTE_KIND (in_rtx))
 239               {
 240               case NOTE_INSN_EH_REGION_BEG:
 241               case NOTE_INSN_EH_REGION_END:
 242                 if (flag_dump_unnumbered)
 243                   fprintf (outfile, " #");
 244                 else
 245                   fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
 246                 sawclose = 1;
 247                 break;
 248
 249               case NOTE_INSN_BLOCK_BEG:
 250               case NOTE_INSN_BLOCK_END:
 251                 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
 252                 sawclose = 1;
 253                 break;
 254
 255               case NOTE_INSN_BASIC_BLOCK:
 256                 {
 257                   basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
 258                   if (bb != 0)
 259                     fprintf (outfile, " [bb %d]", bb->index);
 260                   break;
 261                 }
 262
 263               case NOTE_INSN_DELETED_LABEL:
 264               case NOTE_INSN_DELETED_DEBUG_LABEL:
 265                 {
 266                   const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
 267                   if (label)
 268                     fprintf (outfile, " (\"%s\")", label);
 269                   else
 270                     fprintf (outfile, " \"\"");
 271                 }
 272                 break;
 273
 274               case NOTE_INSN_SWITCH_TEXT_SECTIONS:
 275                 {
 276                   basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
 277                   if (bb != 0)
 278                     fprintf (outfile, " [bb %d]", bb->index);
 279                   break;
 280                 }
 281
 282               case NOTE_INSN_VAR_LOCATION:
 283               case NOTE_INSN_CALL_ARG_LOCATION:
 284                 fputc (' ', outfile);
 285                 print_rtx (NOTE_VAR_LOCATION (in_rtx));
 286                 break;
 287
 288               case NOTE_INSN_CFI:
 289                 fputc ('\n', outfile);
 290                 output_cfi_directive (outfile, NOTE_CFI (in_rtx));
 291                 fputc ('\t', outfile);
 292                 break;
 293
 294               default:
 295                 break;
 296               }
 297           }
 298         else if (i == 7 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL)
 299           {
 300             /* Output the JUMP_LABEL reference.  */
 301             fprintf (outfile, "\n%s%*s -> ", print_rtx_head, indent * 2, "");
 302             if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN)
 303               fprintf (outfile, "return");
 304             else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN)
 305               fprintf (outfile, "simple_return");
 306             else
 307               fprintf (outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx)));
 308           }
 309         else if (i == 0 && GET_CODE (in_rtx) == VALUE)
 310           {
 311             cselib_val *val = CSELIB_VAL_PTR (in_rtx);
 312
 313             fprintf (outfile, " %u:%u", val->uid, val->hash);
 314             dump_addr (outfile, " @", in_rtx);
 315             dump_addr (outfile, "/", (void*)val);
 316           }
 317         else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
 318           {
 319             fprintf (outfile, " D#%i",
 320                      DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
 321           }
 322         else if (i == 0 && GET_CODE (in_rtx) == ENTRY_VALUE)
 323           {
 324             indent += 2;
 325             if (!sawclose)
 326               fprintf (outfile, " ");
 327             print_rtx (ENTRY_VALUE_EXP (in_rtx));
 328             indent -= 2;
 329           }
 330 #endif
 331         break;
 332
 333       case 'e':
 334       do_e:
 335         indent += 2;
 336         if (i == 6 && INSN_P (in_rtx))
 337           /* Put REG_NOTES on their own line.  */
 338           fprintf (outfile, "\n%s%*s",
 339                    print_rtx_head, indent * 2, "");
 340         if (!sawclose)
 341           fprintf (outfile, " ");
 342         if (i == 7 && CALL_P (in_rtx))
 343           {
 344             in_call_function_usage = true;
 345             print_rtx (XEXP (in_rtx, i));
 346             in_call_function_usage = false;
 347           }
 348         else
 349           print_rtx (XEXP (in_rtx, i));
 350         indent -= 2;
 351         break;
 352
 353       case 'E':
 354       case 'V':
 355         indent += 2;
 356         if (sawclose)
 357           {
 358             fprintf (outfile, "\n%s%*s",
 359                      print_rtx_head, indent * 2, "");
 360             sawclose = 0;
 361           }
 362         fputs (" [", outfile);
 363         if (NULL != XVEC (in_rtx, i))
 364           {
 365             indent += 2;
 366             if (XVECLEN (in_rtx, i))
 367               sawclose = 1;
 368
 369             for (j = 0; j < XVECLEN (in_rtx, i); j++)
 370               print_rtx (XVECEXP (in_rtx, i, j));
 371
 372             indent -= 2;
 373           }
 374         if (sawclose)
 375           fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
 376
 377         fputs ("]", outfile);
 378         sawclose = 1;
 379         indent -= 2;
 380         break;
 381
 382       case 'w':
 383         if (! flag_simple)
 384           fprintf (outfile, " ");
 385         fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
 386         if (! flag_simple)
 387           fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
 388                    (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
 389         break;
 390
 391       case 'i':
 392         if (i == 4 && INSN_P (in_rtx))
 393           {
 394 #ifndef GENERATOR_FILE
 395             /*  Pretty-print insn locations.  Ignore scoping as it is mostly
 396                 redundant with line number information and do not print anything
 397                 when there is no location information available.  */
 398             if (INSN_HAS_LOCATION (in_rtx))
 399               {
 400                 expanded_location xloc = insn_location (in_rtx);
 401                 fprintf (outfile, " %s:%i", xloc.file, xloc.line);
 402               }
 403 #endif
 404           }
 405         else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
 406           {
 407 #ifndef GENERATOR_FILE
 408             if (ASM_OPERANDS_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
 409               fprintf (outfile, " %s:%i",
 410                        LOCATION_FILE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
 411                        LOCATION_LINE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
 412 #endif
 413           }
 414         else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT)
 415           {
 416 #ifndef GENERATOR_FILE
 417             if (ASM_INPUT_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
 418               fprintf (outfile, " %s:%i",
 419                        LOCATION_FILE (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
 420                        LOCATION_LINE (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
 421 #endif
 422           }
 423         else if (i == 5 && NOTE_P (in_rtx))
 424           {
 425             /* This field is only used for NOTE_INSN_DELETED_LABEL, and
 426                other times often contains garbage from INSN->NOTE death.  */
 427             if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL
 428                 || NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_DEBUG_LABEL)
 429               fprintf (outfile, " %d",  XINT (in_rtx, i));
 430           }
 431 #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0
 432         else if (i == 1
 433                  && GET_CODE (in_rtx) == UNSPEC_VOLATILE
 434                  && XINT (in_rtx, 1) >= 0
 435                  && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES)
 436           fprintf (outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]);
 437 #endif
 438 #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0
 439         else if (i == 1
 440                  && (GET_CODE (in_rtx) == UNSPEC
 441                      || GET_CODE (in_rtx) == UNSPEC_VOLATILE)
 442                  && XINT (in_rtx, 1) >= 0
 443                  && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES)
 444           fprintf (outfile, " %s", unspec_strings[XINT (in_rtx, 1)]);
 445 #endif
 446         else
 447           {
 448             int value = XINT (in_rtx, i);
 449             const char *name;
 450
 451 #ifndef GENERATOR_FILE
 452             if (REG_P (in_rtx) && (unsigned) value < FIRST_PSEUDO_REGISTER)
 453               fprintf (outfile, " %d %s", value, reg_names[value]);
 454             else if (REG_P (in_rtx)
 455                      && (unsigned) value <= LAST_VIRTUAL_REGISTER)
 456               {
 457                 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
 458                   fprintf (outfile, " %d virtual-incoming-args", value);
 459                 else if (value == VIRTUAL_STACK_VARS_REGNUM)
 460                   fprintf (outfile, " %d virtual-stack-vars", value);
 461                 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
 462                   fprintf (outfile, " %d virtual-stack-dynamic", value);
 463                 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
 464                   fprintf (outfile, " %d virtual-outgoing-args", value);
 465                 else if (value == VIRTUAL_CFA_REGNUM)
 466                   fprintf (outfile, " %d virtual-cfa", value);
 467                 else if (value == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM)
 468                   fprintf (outfile, " %d virtual-preferred-stack-boundary",
 469                            value);
 470                 else
 471                   fprintf (outfile, " %d virtual-reg-%d", value,
 472                            value-FIRST_VIRTUAL_REGISTER);
 473               }
 474             else
 475 #endif
 476               if (flag_dump_unnumbered
 477                      && (is_insn || NOTE_P (in_rtx)))
 478               fputc ('#', outfile);
 479             else
 480               fprintf (outfile, " %d", value);
 481
 482 #ifndef GENERATOR_FILE
 483             if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
 484               {
 485                 fputs (" [", outfile);
 486                 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
 487                   fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
 488                 if (REG_EXPR (in_rtx))
 489                   print_mem_expr (outfile, REG_EXPR (in_rtx));
 490
 491                 if (REG_OFFSET (in_rtx))
 492                   fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
 493                            REG_OFFSET (in_rtx));
 494                 fputs (" ]", outfile);
 495               }
 496             if (REG_P (in_rtx) && REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
 497               fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
 498 #endif
 499
 500             if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
 501                 && XINT (in_rtx, i) >= 0
 502                 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
 503               fprintf (outfile, " {%s}", name);
 504             sawclose = 0;
 505           }
 506         break;
 507
 508       /* Print NOTE_INSN names rather than integer codes.  */
 509
 510       case 'n':
 511         fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
 512         sawclose = 0;
 513         break;
 514
 515       case 'u':
 516         if (XEXP (in_rtx, i) != NULL)
 517           {
 518             rtx sub = XEXP (in_rtx, i);
 519             enum rtx_code subc = GET_CODE (sub);
 520
 521             if (GET_CODE (in_rtx) == LABEL_REF)
 522               {
 523                 if (subc == NOTE
 524                     && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
 525                   {
 526                     if (flag_dump_unnumbered)
 527                       fprintf (outfile, " [# deleted]");
 528                     else
 529                       fprintf (outfile, " [%d deleted]", INSN_UID (sub));
 530                     sawclose = 0;
 531                     break;
 532                   }
 533
 534                 if (subc != CODE_LABEL)
 535                   goto do_e;
 536               }
 537
 538             if (flag_dump_unnumbered
 539                 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
 540                     && (INSN_P (in_rtx) || NOTE_P (in_rtx)
 541                         || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
 542               fputs (" #", outfile);
 543             else
 544               fprintf (outfile, " %d", INSN_UID (sub));
 545           }
 546         else
 547           fputs (" 0", outfile);
 548         sawclose = 0;
 549         break;
 550
 551       case 't':
 552 #ifndef GENERATOR_FILE
 553         if (i == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR)
 554           print_mem_expr (outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx));
 555         else if (i == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF)
 556           print_mem_expr (outfile, DEBUG_PARAMETER_REF_DECL (in_rtx));
 557         else
 558           dump_addr (outfile, " ", XTREE (in_rtx, i));
 559 #endif
 560         break;
 561
 562       case '*':
 563         fputs (" Unknown", outfile);
 564         sawclose = 0;
 565         break;
 566
 567       case 'B':
 568 #ifndef GENERATOR_FILE
 569         if (XBBDEF (in_rtx, i))
 570           fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
 571 #endif
 572         break;
 573
 574       default:
 575         gcc_unreachable ();
 576       }
 577
 578   switch (GET_CODE (in_rtx))
 579     {
 580 #ifndef GENERATOR_FILE
 581     case MEM:
 582       if (__builtin_expect (final_insns_dump_p, false))
 583         fprintf (outfile, " [");
 584       else
 585         fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
 586                  (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
 587
 588       if (MEM_EXPR (in_rtx))
 589         print_mem_expr (outfile, MEM_EXPR (in_rtx));
 590       else
 591         fputc (' ', outfile);
 592
 593       if (MEM_OFFSET_KNOWN_P (in_rtx))
 594         fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, MEM_OFFSET (in_rtx));
 595
 596       if (MEM_SIZE_KNOWN_P (in_rtx))
 597         fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC, MEM_SIZE (in_rtx));
 598
 599       if (MEM_ALIGN (in_rtx) != 1)
 600         fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
 601
 602       if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
 603         fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
 604
 605       fputc (']', outfile);
 606       break;
 607
 608     case CONST_DOUBLE:
 609       if (FLOAT_MODE_P (GET_MODE (in_rtx)))
 610         {
 611           char s[60];
 612
 613           real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 614                            sizeof (s), 0, 1);
 615           fprintf (outfile, " %s", s);
 616
 617           real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 618                                sizeof (s), 0, 1);
 619           fprintf (outfile, " [%s]", s);
 620         }
 621       break;
 622
 623     case CONST_WIDE_INT:
 624       fprintf (outfile, " ");
 625       cwi_output_hex (outfile, in_rtx);
 626       break;
 627 #endif
 628
 629     case CODE_LABEL:
 630       fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
 631       switch (LABEL_KIND (in_rtx))
 632         {
 633           case LABEL_NORMAL: break;
 634           case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
 635           case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
 636           case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
 637           default: gcc_unreachable ();
 638         }
 639       break;
 640
 641     default:
 642       break;
 643     }
 644
 645   fputc (')', outfile);
 646   sawclose = 1;
 647 }
 648
 649 /* Print an rtx on the current line of FILE.  Initially indent IND
 650    characters.  */
 651
 652 void
 653 print_inline_rtx (FILE *outf, const_rtx x, int ind)
 654 {
 655   int oldsaw = sawclose;
 656   int oldindent = indent;
 657
 658   sawclose = 0;
 659   indent = ind;
 660   outfile = outf;
 661   print_rtx (x);
 662   sawclose = oldsaw;
 663   indent = oldindent;
 664 }
 665
 666 /* Call this function from the debugger to see what X looks like.  */
 667
 668 DEBUG_FUNCTION void
 669 debug_rtx (const_rtx x)
 670 {
 671   outfile = stderr;
 672   sawclose = 0;
 673   print_rtx (x);
 674   fprintf (stderr, "\n");
 675 }
 676
 677 /* Dump rtx REF.  */
 678
 679 DEBUG_FUNCTION void
 680 debug (const rtx_def &ref)
 681 {
 682   debug_rtx (&ref);
 683 }
 684
 685 DEBUG_FUNCTION void
 686 debug (const rtx_def *ptr)
 687 {
 688   if (ptr)
 689     debug (*ptr);
 690   else
 691     fprintf (stderr, "<nil>\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 JUMP_TABLE_DATA:
 794       case BARRIER:
 795         for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
 796           {
 797             fputs (print_rtx_head, outfile);
 798             print_rtx (tmp_rtx);
 799             fprintf (outfile, "\n");
 800           }
 801         break;
 802
 803       default:
 804         fputs (print_rtx_head, outfile);
 805         print_rtx (rtx_first);
 806       }
 807 }
 808
 809 /* Like print_rtx, except specify a file.  */
 810 /* Return nonzero if we actually printed anything.  */
 811
 812 int
 813 print_rtl_single (FILE *outf, const_rtx x)
 814 {
 815   return print_rtl_single_with_indent (outf, x, 0);
 816 }
 817
 818 /* Like print_rtl_single, except specify a file and indentation.  */
 819
 820 int
 821 print_rtl_single_with_indent (FILE *outf, const_rtx x, int ind)
 822 {
 823   int old_indent = indent;
 824   char *s_indent = (char *) alloca ((size_t) ind + 1);
 825   memset ((void *) s_indent, ' ', (size_t) ind);
 826   s_indent[ind] = '\0';
 827
 828   indent = ind;
 829   outfile = outf;
 830   sawclose = 0;
 831   fputs (s_indent, outfile);
 832   fputs (print_rtx_head, outfile);
 833   print_rtx (x);
 834   putc ('\n', outf);
 835   indent = old_indent;
 836   return 1;
 837 }
 838
 839
 840 /* Like print_rtl except without all the detail; for example,
 841    if RTX is a CONST_INT then print in decimal format.  */
 842
 843 void
 844 print_simple_rtl (FILE *outf, const_rtx x)
 845 {
 846   flag_simple = 1;
 847   print_rtl (outf, x);
 848   flag_simple = 0;
 849 }