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             const rtx_insn *in_insn = as_a <const rtx_insn *> (in_rtx);
 396
 397             /*  Pretty-print insn locations.  Ignore scoping as it is mostly
 398                 redundant with line number information and do not print anything
 399                 when there is no location information available.  */
 400             if (INSN_HAS_LOCATION (in_insn))
 401               {
 402                 expanded_location xloc = insn_location (in_insn);
 403                 fprintf (outfile, " %s:%i", xloc.file, xloc.line);
 404               }
 405 #endif
 406           }
 407         else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
 408           {
 409 #ifndef GENERATOR_FILE
 410             if (ASM_OPERANDS_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
 411               fprintf (outfile, " %s:%i",
 412                        LOCATION_FILE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
 413                        LOCATION_LINE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
 414 #endif
 415           }
 416         else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT)
 417           {
 418 #ifndef GENERATOR_FILE
 419             if (ASM_INPUT_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
 420               fprintf (outfile, " %s:%i",
 421                        LOCATION_FILE (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
 422                        LOCATION_LINE (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
 423 #endif
 424           }
 425         else if (i == 5 && NOTE_P (in_rtx))
 426           {
 427             /* This field is only used for NOTE_INSN_DELETED_LABEL, and
 428                other times often contains garbage from INSN->NOTE death.  */
 429             if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL
 430                 || NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_DEBUG_LABEL)
 431               fprintf (outfile, " %d",  XINT (in_rtx, i));
 432           }
 433 #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0
 434         else if (i == 1
 435                  && GET_CODE (in_rtx) == UNSPEC_VOLATILE
 436                  && XINT (in_rtx, 1) >= 0
 437                  && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES)
 438           fprintf (outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]);
 439 #endif
 440 #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0
 441         else if (i == 1
 442                  && (GET_CODE (in_rtx) == UNSPEC
 443                      || GET_CODE (in_rtx) == UNSPEC_VOLATILE)
 444                  && XINT (in_rtx, 1) >= 0
 445                  && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES)
 446           fprintf (outfile, " %s", unspec_strings[XINT (in_rtx, 1)]);
 447 #endif
 448         else
 449           {
 450             int value = XINT (in_rtx, i);
 451             const char *name;
 452
 453 #ifndef GENERATOR_FILE
 454             if (REG_P (in_rtx) && (unsigned) value < FIRST_PSEUDO_REGISTER)
 455               fprintf (outfile, " %d %s", value, reg_names[value]);
 456             else if (REG_P (in_rtx)
 457                      && (unsigned) value <= LAST_VIRTUAL_REGISTER)
 458               {
 459                 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
 460                   fprintf (outfile, " %d virtual-incoming-args", value);
 461                 else if (value == VIRTUAL_STACK_VARS_REGNUM)
 462                   fprintf (outfile, " %d virtual-stack-vars", value);
 463                 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
 464                   fprintf (outfile, " %d virtual-stack-dynamic", value);
 465                 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
 466                   fprintf (outfile, " %d virtual-outgoing-args", value);
 467                 else if (value == VIRTUAL_CFA_REGNUM)
 468                   fprintf (outfile, " %d virtual-cfa", value);
 469                 else if (value == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM)
 470                   fprintf (outfile, " %d virtual-preferred-stack-boundary",
 471                            value);
 472                 else
 473                   fprintf (outfile, " %d virtual-reg-%d", value,
 474                            value-FIRST_VIRTUAL_REGISTER);
 475               }
 476             else
 477 #endif
 478               if (flag_dump_unnumbered
 479                      && (is_insn || NOTE_P (in_rtx)))
 480               fputc ('#', outfile);
 481             else
 482               fprintf (outfile, " %d", value);
 483
 484 #ifndef GENERATOR_FILE
 485             if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
 486               {
 487                 fputs (" [", outfile);
 488                 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
 489                   fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
 490                 if (REG_EXPR (in_rtx))
 491                   print_mem_expr (outfile, REG_EXPR (in_rtx));
 492
 493                 if (REG_OFFSET (in_rtx))
 494                   fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
 495                            REG_OFFSET (in_rtx));
 496                 fputs (" ]", outfile);
 497               }
 498             if (REG_P (in_rtx) && REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
 499               fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
 500 #endif
 501
 502             if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
 503                 && XINT (in_rtx, i) >= 0
 504                 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
 505               fprintf (outfile, " {%s}", name);
 506             sawclose = 0;
 507           }
 508         break;
 509
 510       /* Print NOTE_INSN names rather than integer codes.  */
 511
 512       case 'n':
 513         fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
 514         sawclose = 0;
 515         break;
 516
 517       case 'u':
 518         if (XEXP (in_rtx, i) != NULL)
 519           {
 520             rtx sub = XEXP (in_rtx, i);
 521             enum rtx_code subc = GET_CODE (sub);
 522
 523             if (GET_CODE (in_rtx) == LABEL_REF)
 524               {
 525                 if (subc == NOTE
 526                     && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
 527                   {
 528                     if (flag_dump_unnumbered)
 529                       fprintf (outfile, " [# deleted]");
 530                     else
 531                       fprintf (outfile, " [%d deleted]", INSN_UID (sub));
 532                     sawclose = 0;
 533                     break;
 534                   }
 535
 536                 if (subc != CODE_LABEL)
 537                   goto do_e;
 538               }
 539
 540             if (flag_dump_unnumbered
 541                 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
 542                     && (INSN_P (in_rtx) || NOTE_P (in_rtx)
 543                         || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
 544               fputs (" #", outfile);
 545             else
 546               fprintf (outfile, " %d", INSN_UID (sub));
 547           }
 548         else
 549           fputs (" 0", outfile);
 550         sawclose = 0;
 551         break;
 552
 553       case 't':
 554 #ifndef GENERATOR_FILE
 555         if (i == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR)
 556           print_mem_expr (outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx));
 557         else if (i == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF)
 558           print_mem_expr (outfile, DEBUG_PARAMETER_REF_DECL (in_rtx));
 559         else
 560           dump_addr (outfile, " ", XTREE (in_rtx, i));
 561 #endif
 562         break;
 563
 564       case '*':
 565         fputs (" Unknown", outfile);
 566         sawclose = 0;
 567         break;
 568
 569       case 'B':
 570 #ifndef GENERATOR_FILE
 571         if (XBBDEF (in_rtx, i))
 572           fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
 573 #endif
 574         break;
 575
 576       default:
 577         gcc_unreachable ();
 578       }
 579
 580   switch (GET_CODE (in_rtx))
 581     {
 582 #ifndef GENERATOR_FILE
 583     case MEM:
 584       if (__builtin_expect (final_insns_dump_p, false))
 585         fprintf (outfile, " [");
 586       else
 587         fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
 588                  (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
 589
 590       if (MEM_EXPR (in_rtx))
 591         print_mem_expr (outfile, MEM_EXPR (in_rtx));
 592       else
 593         fputc (' ', outfile);
 594
 595       if (MEM_OFFSET_KNOWN_P (in_rtx))
 596         fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, MEM_OFFSET (in_rtx));
 597
 598       if (MEM_SIZE_KNOWN_P (in_rtx))
 599         fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC, MEM_SIZE (in_rtx));
 600
 601       if (MEM_ALIGN (in_rtx) != 1)
 602         fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
 603
 604       if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
 605         fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
 606
 607       fputc (']', outfile);
 608       break;
 609
 610     case CONST_DOUBLE:
 611       if (FLOAT_MODE_P (GET_MODE (in_rtx)))
 612         {
 613           char s[60];
 614
 615           real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 616                            sizeof (s), 0, 1);
 617           fprintf (outfile, " %s", s);
 618
 619           real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 620                                sizeof (s), 0, 1);
 621           fprintf (outfile, " [%s]", s);
 622         }
 623       break;
 624
 625     case CONST_WIDE_INT:
 626       fprintf (outfile, " ");
 627       cwi_output_hex (outfile, in_rtx);
 628       break;
 629 #endif
 630
 631     case CODE_LABEL:
 632       fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
 633       switch (LABEL_KIND (in_rtx))
 634         {
 635           case LABEL_NORMAL: break;
 636           case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
 637           case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
 638           case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
 639           default: gcc_unreachable ();
 640         }
 641       break;
 642
 643     default:
 644       break;
 645     }
 646
 647   fputc (')', outfile);
 648   sawclose = 1;
 649 }
 650
 651 /* Print an rtx on the current line of FILE.  Initially indent IND
 652    characters.  */
 653
 654 void
 655 print_inline_rtx (FILE *outf, const_rtx x, int ind)
 656 {
 657   int oldsaw = sawclose;
 658   int oldindent = indent;
 659
 660   sawclose = 0;
 661   indent = ind;
 662   outfile = outf;
 663   print_rtx (x);
 664   sawclose = oldsaw;
 665   indent = oldindent;
 666 }
 667
 668 /* Call this function from the debugger to see what X looks like.  */
 669
 670 DEBUG_FUNCTION void
 671 debug_rtx (const_rtx x)
 672 {
 673   outfile = stderr;
 674   sawclose = 0;
 675   print_rtx (x);
 676   fprintf (stderr, "\n");
 677 }
 678
 679 /* Dump rtx REF.  */
 680
 681 DEBUG_FUNCTION void
 682 debug (const rtx_def &ref)
 683 {
 684   debug_rtx (&ref);
 685 }
 686
 687 DEBUG_FUNCTION void
 688 debug (const rtx_def *ptr)
 689 {
 690   if (ptr)
 691     debug (*ptr);
 692   else
 693     fprintf (stderr, "<nil>\n");
 694 }
 695
 696 /* Count of rtx's to print with debug_rtx_list.
 697    This global exists because gdb user defined commands have no arguments.  */
 698
 699 DEBUG_VARIABLE int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
 700
 701 /* Call this function to print list from X on.
 702
 703    N is a count of the rtx's to print. Positive values print from the specified
 704    rtx_insn on.  Negative values print a window around the rtx_insn.
 705    EG: -5 prints 2 rtx_insn's on either side (in addition to the specified
 706    rtx_insn).  */
 707
 708 DEBUG_FUNCTION void
 709 debug_rtx_list (const rtx_insn *x, int n)
 710 {
 711   int i,count;
 712   const rtx_insn *insn;
 713
 714   count = n == 0 ? 1 : n < 0 ? -n : n;
 715
 716   /* If we are printing a window, back up to the start.  */
 717
 718   if (n < 0)
 719     for (i = count / 2; i > 0; i--)
 720       {
 721         if (PREV_INSN (x) == 0)
 722           break;
 723         x = PREV_INSN (x);
 724       }
 725
 726   for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
 727     {
 728       debug_rtx (insn);
 729       fprintf (stderr, "\n");
 730     }
 731 }
 732
 733 /* Call this function to print an rtx_insn list from START to END
 734    inclusive.  */
 735
 736 DEBUG_FUNCTION void
 737 debug_rtx_range (const rtx_insn *start, const rtx_insn *end)
 738 {
 739   while (1)
 740     {
 741       debug_rtx (start);
 742       fprintf (stderr, "\n");
 743       if (!start || start == end)
 744         break;
 745       start = NEXT_INSN (start);
 746     }
 747 }
 748
 749 /* Call this function to search an rtx_insn list to find one with insn uid UID,
 750    and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
 751    The found insn is returned to enable further debugging analysis.  */
 752
 753 DEBUG_FUNCTION const_rtx
 754 debug_rtx_find (const rtx_insn *x, int uid)
 755 {
 756   while (x != 0 && INSN_UID (x) != uid)
 757     x = NEXT_INSN (x);
 758   if (x != 0)
 759     {
 760       debug_rtx_list (x, debug_rtx_count);
 761       return x;
 762     }
 763   else
 764     {
 765       fprintf (stderr, "insn uid %d not found\n", uid);
 766       return 0;
 767     }
 768 }
 769
 770 /* External entry point for printing a chain of insns
 771    starting with RTX_FIRST onto file OUTF.
 772    A blank line separates insns.
 773
 774    If RTX_FIRST is not an insn, then it alone is printed, with no newline.  */
 775
 776 void
 777 print_rtl (FILE *outf, const_rtx rtx_first)
 778 {
 779   const rtx_insn *tmp_rtx;
 780
 781   outfile = outf;
 782   sawclose = 0;
 783
 784   if (rtx_first == 0)
 785     {
 786       fputs (print_rtx_head, outf);
 787       fputs ("(nil)\n", outf);
 788     }
 789   else
 790     switch (GET_CODE (rtx_first))
 791       {
 792       case INSN:
 793       case JUMP_INSN:
 794       case CALL_INSN:
 795       case NOTE:
 796       case CODE_LABEL:
 797       case JUMP_TABLE_DATA:
 798       case BARRIER:
 799         for (tmp_rtx = as_a <const rtx_insn *> (rtx_first);
 800              tmp_rtx != 0;
 801              tmp_rtx = NEXT_INSN (tmp_rtx))
 802           {
 803             fputs (print_rtx_head, outfile);
 804             print_rtx (tmp_rtx);
 805             fprintf (outfile, "\n");
 806           }
 807         break;
 808
 809       default:
 810         fputs (print_rtx_head, outfile);
 811         print_rtx (rtx_first);
 812       }
 813 }
 814
 815 /* Like print_rtx, except specify a file.  */
 816 /* Return nonzero if we actually printed anything.  */
 817
 818 int
 819 print_rtl_single (FILE *outf, const_rtx x)
 820 {
 821   return print_rtl_single_with_indent (outf, x, 0);
 822 }
 823
 824 /* Like print_rtl_single, except specify a file and indentation.  */
 825
 826 int
 827 print_rtl_single_with_indent (FILE *outf, const_rtx x, int ind)
 828 {
 829   int old_indent = indent;
 830   char *s_indent = (char *) alloca ((size_t) ind + 1);
 831   memset ((void *) s_indent, ' ', (size_t) ind);
 832   s_indent[ind] = '\0';
 833
 834   indent = ind;
 835   outfile = outf;
 836   sawclose = 0;
 837   fputs (s_indent, outfile);
 838   fputs (print_rtx_head, outfile);
 839   print_rtx (x);
 840   putc ('\n', outf);
 841   indent = old_indent;
 842   return 1;
 843 }
 844
 845
 846 /* Like print_rtl except without all the detail; for example,
 847    if RTX is a CONST_INT then print in decimal format.  */
 848
 849 void
 850 print_simple_rtl (FILE *outf, const_rtx x)
 851 {
 852   flag_simple = 1;
 853   print_rtl (outf, x);
 854   flag_simple = 0;
 855 }