gcc/print-rtl.c

   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                 {
 287                   const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
 288                   if (label)
 289                     fprintf (outfile, " (\"%s\")", label);
 290                   else
 291                     fprintf (outfile, " \"\"");
 292                 }
 293                 break;
 294
 295               case NOTE_INSN_SWITCH_TEXT_SECTIONS:
 296                 {
 297 #ifndef GENERATOR_FILE
 298                   basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
 299                   if (bb != 0)
 300                     fprintf (outfile, " [bb %d]", bb->index);
 301 #endif
 302                   break;
 303                 }
 304
 305               case NOTE_INSN_VAR_LOCATION:
 306               case NOTE_INSN_CALL_ARG_LOCATION:
 307 #ifndef GENERATOR_FILE
 308                 fputc (' ', outfile);
 309                 print_rtx (NOTE_VAR_LOCATION (in_rtx));
 310 #endif
 311                 break;
 312
 313               case NOTE_INSN_CFI:
 314 #ifndef GENERATOR_FILE
 315                 fputc ('\n', outfile);
 316                 output_cfi_directive (outfile, NOTE_CFI (in_rtx));
 317                 fputc ('\t', outfile);
 318 #endif
 319                 break;
 320
 321               default:
 322                 break;
 323               }
 324           }
 325         else if (i == 8 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL)
 326           {
 327             /* Output the JUMP_LABEL reference.  */
 328             fprintf (outfile, "\n%s%*s -> ", print_rtx_head, indent * 2, "");
 329             if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN)
 330               fprintf (outfile, "return");
 331             else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN)
 332               fprintf (outfile, "simple_return");
 333             else
 334               fprintf (outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx)));
 335           }
 336         else if (i == 0 && GET_CODE (in_rtx) == VALUE)
 337           {
 338 #ifndef GENERATOR_FILE
 339             cselib_val *val = CSELIB_VAL_PTR (in_rtx);
 340
 341             fprintf (outfile, " %u:%u", val->uid, val->hash);
 342             dump_addr (outfile, " @", in_rtx);
 343             dump_addr (outfile, "/", (void*)val);
 344 #endif
 345           }
 346         else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
 347           {
 348 #ifndef GENERATOR_FILE
 349             fprintf (outfile, " D#%i",
 350                      DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
 351 #endif
 352           }
 353         else if (i == 0 && GET_CODE (in_rtx) == ENTRY_VALUE)
 354           {
 355             indent += 2;
 356             if (!sawclose)
 357               fprintf (outfile, " ");
 358             print_rtx (ENTRY_VALUE_EXP (in_rtx));
 359             indent -= 2;
 360           }
 361         break;
 362
 363       case 'e':
 364       do_e:
 365         indent += 2;
 366         if (i == 7 && INSN_P (in_rtx))
 367           /* Put REG_NOTES on their own line.  */
 368           fprintf (outfile, "\n%s%*s",
 369                    print_rtx_head, indent * 2, "");
 370         if (!sawclose)
 371           fprintf (outfile, " ");
 372         print_rtx (XEXP (in_rtx, i));
 373         indent -= 2;
 374         break;
 375
 376       case 'E':
 377       case 'V':
 378         indent += 2;
 379         if (sawclose)
 380           {
 381             fprintf (outfile, "\n%s%*s",
 382                      print_rtx_head, indent * 2, "");
 383             sawclose = 0;
 384           }
 385         fputs (" [", outfile);
 386         if (NULL != XVEC (in_rtx, i))
 387           {
 388             indent += 2;
 389             if (XVECLEN (in_rtx, i))
 390               sawclose = 1;
 391
 392             for (j = 0; j < XVECLEN (in_rtx, i); j++)
 393               print_rtx (XVECEXP (in_rtx, i, j));
 394
 395             indent -= 2;
 396           }
 397         if (sawclose)
 398           fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
 399
 400         fputs ("]", outfile);
 401         sawclose = 1;
 402         indent -= 2;
 403         break;
 404
 405       case 'w':
 406         if (! flag_simple)
 407           fprintf (outfile, " ");
 408         fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
 409         if (! flag_simple)
 410           fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
 411                    (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
 412         break;
 413
 414       case 'i':
 415         if (i == 5 && INSN_P (in_rtx))
 416           {
 417 #ifndef GENERATOR_FILE
 418             /*  Pretty-print insn locators.  Ignore scoping as it is mostly
 419                 redundant with line number information and do not print anything
 420                 when there is no location information available.  */
 421             if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
 422               fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
 423 #endif
 424           }
 425         else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
 426           {
 427 #ifndef GENERATOR_FILE
 428             fprintf (outfile, " %s:%i",
 429                      locator_file (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
 430                      locator_line (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
 431 #endif
 432           }
 433         else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT)
 434           {
 435 #ifndef GENERATOR_FILE
 436             fprintf (outfile, " %s:%i",
 437                      locator_file (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
 438                      locator_line (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
 439 #endif
 440           }
 441         else if (i == 6 && NOTE_P (in_rtx))
 442           {
 443             /* This field is only used for NOTE_INSN_DELETED_LABEL, and
 444                other times often contains garbage from INSN->NOTE death.  */
 445             if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL)
 446               fprintf (outfile, " %d",  XINT (in_rtx, i));
 447           }
 448 #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0
 449         else if (i == 1
 450                  && GET_CODE (in_rtx) == UNSPEC_VOLATILE
 451                  && XINT (in_rtx, 1) >= 0
 452                  && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES)
 453           fprintf (outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]);
 454 #endif
 455 #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0
 456         else if (i == 1
 457                  && (GET_CODE (in_rtx) == UNSPEC
 458                      || GET_CODE (in_rtx) == UNSPEC_VOLATILE)
 459                  && XINT (in_rtx, 1) >= 0
 460                  && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES)
 461           fprintf (outfile, " %s", unspec_strings[XINT (in_rtx, 1)]);
 462 #endif
 463         else
 464           {
 465             int value = XINT (in_rtx, i);
 466             const char *name;
 467
 468 #ifndef GENERATOR_FILE
 469             if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
 470               fprintf (outfile, " %d %s", REGNO (in_rtx),
 471                        reg_names[REGNO (in_rtx)]);
 472             else if (REG_P (in_rtx)
 473                      && value <= LAST_VIRTUAL_REGISTER)
 474               {
 475                 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
 476                   fprintf (outfile, " %d virtual-incoming-args", value);
 477                 else if (value == VIRTUAL_STACK_VARS_REGNUM)
 478                   fprintf (outfile, " %d virtual-stack-vars", value);
 479                 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
 480                   fprintf (outfile, " %d virtual-stack-dynamic", value);
 481                 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
 482                   fprintf (outfile, " %d virtual-outgoing-args", value);
 483                 else if (value == VIRTUAL_CFA_REGNUM)
 484                   fprintf (outfile, " %d virtual-cfa", value);
 485                 else if (value == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM)
 486                   fprintf (outfile, " %d virtual-preferred-stack-boundary",
 487                            value);
 488                 else
 489                   fprintf (outfile, " %d virtual-reg-%d", value,
 490                            value-FIRST_VIRTUAL_REGISTER);
 491               }
 492             else
 493 #endif
 494               if (flag_dump_unnumbered
 495                      && (is_insn || NOTE_P (in_rtx)))
 496               fputc ('#', outfile);
 497             else
 498               fprintf (outfile, " %d", value);
 499
 500 #ifndef GENERATOR_FILE
 501             if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
 502               {
 503                 fputs (" [", outfile);
 504                 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
 505                   fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
 506                 if (REG_EXPR (in_rtx))
 507                   print_mem_expr (outfile, REG_EXPR (in_rtx));
 508
 509                 if (REG_OFFSET (in_rtx))
 510                   fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
 511                            REG_OFFSET (in_rtx));
 512                 fputs (" ]", outfile);
 513               }
 514 #endif
 515
 516             if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
 517                 && XINT (in_rtx, i) >= 0
 518                 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
 519               fprintf (outfile, " {%s}", name);
 520             sawclose = 0;
 521           }
 522         break;
 523
 524       /* Print NOTE_INSN names rather than integer codes.  */
 525
 526       case 'n':
 527         fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
 528         sawclose = 0;
 529         break;
 530
 531       case 'u':
 532         if (XEXP (in_rtx, i) != NULL)
 533           {
 534             rtx sub = XEXP (in_rtx, i);
 535             enum rtx_code subc = GET_CODE (sub);
 536
 537             if (GET_CODE (in_rtx) == LABEL_REF)
 538               {
 539                 if (subc == NOTE
 540                     && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
 541                   {
 542                     if (flag_dump_unnumbered)
 543                       fprintf (outfile, " [# deleted]");
 544                     else
 545                       fprintf (outfile, " [%d deleted]", INSN_UID (sub));
 546                     sawclose = 0;
 547                     break;
 548                   }
 549
 550                 if (subc != CODE_LABEL)
 551                   goto do_e;
 552               }
 553
 554             if (flag_dump_unnumbered
 555                 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
 556                     && (INSN_P (in_rtx) || NOTE_P (in_rtx)
 557                         || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
 558               fputs (" #", outfile);
 559             else
 560               fprintf (outfile, " %d", INSN_UID (sub));
 561           }
 562         else
 563           fputs (" 0", outfile);
 564         sawclose = 0;
 565         break;
 566
 567       case 't':
 568 #ifndef GENERATOR_FILE
 569         if (i == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR)
 570           print_mem_expr (outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx));
 571         else if (i == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF)
 572           print_mem_expr (outfile, DEBUG_PARAMETER_REF_DECL (in_rtx));
 573         else
 574           dump_addr (outfile, " ", XTREE (in_rtx, i));
 575 #endif
 576         break;
 577
 578       case '*':
 579         fputs (" Unknown", outfile);
 580         sawclose = 0;
 581         break;
 582
 583       case 'B':
 584 #ifndef GENERATOR_FILE
 585         if (XBBDEF (in_rtx, i))
 586           fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
 587 #endif
 588         break;
 589
 590       default:
 591         gcc_unreachable ();
 592       }
 593
 594   switch (GET_CODE (in_rtx))
 595     {
 596 #ifndef GENERATOR_FILE
 597     case MEM:
 598       if (__builtin_expect (final_insns_dump_p, false))
 599         fprintf (outfile, " [");
 600       else
 601         fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
 602                  (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
 603
 604       if (MEM_EXPR (in_rtx))
 605         print_mem_expr (outfile, MEM_EXPR (in_rtx));
 606
 607       if (MEM_OFFSET_KNOWN_P (in_rtx))
 608         fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, MEM_OFFSET (in_rtx));
 609
 610       if (MEM_SIZE_KNOWN_P (in_rtx))
 611         fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC, MEM_SIZE (in_rtx));
 612
 613       if (MEM_ALIGN (in_rtx) != 1)
 614         fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
 615
 616       if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
 617         fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
 618
 619       fputc (']', outfile);
 620       break;
 621
 622     case CONST_DOUBLE:
 623       if (FLOAT_MODE_P (GET_MODE (in_rtx)))
 624         {
 625           char s[60];
 626
 627           real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 628                            sizeof (s), 0, 1);
 629           fprintf (outfile, " %s", s);
 630
 631           real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 632                                sizeof (s), 0, 1);
 633           fprintf (outfile, " [%s]", s);
 634         }
 635       break;
 636 #endif
 637
 638     case CODE_LABEL:
 639       fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
 640       switch (LABEL_KIND (in_rtx))
 641         {
 642           case LABEL_NORMAL: break;
 643           case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
 644           case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
 645           case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
 646           default: gcc_unreachable ();
 647         }
 648       break;
 649
 650     default:
 651       break;
 652     }
 653
 654   if (dump_for_graph
 655       && (is_insn || NOTE_P (in_rtx)
 656           || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
 657     sawclose = 0;
 658   else
 659     {
 660       fputc (')', outfile);
 661       sawclose = 1;
 662     }
 663 }
 664
 665 /* Print an rtx on the current line of FILE.  Initially indent IND
 666    characters.  */
 667
 668 void
 669 print_inline_rtx (FILE *outf, const_rtx x, int ind)
 670 {
 671   int oldsaw = sawclose;
 672   int oldindent = indent;
 673
 674   sawclose = 0;
 675   indent = ind;
 676   outfile = outf;
 677   print_rtx (x);
 678   sawclose = oldsaw;
 679   indent = oldindent;
 680 }
 681
 682 /* Call this function from the debugger to see what X looks like.  */
 683
 684 DEBUG_FUNCTION void
 685 debug_rtx (const_rtx x)
 686 {
 687   outfile = stderr;
 688   sawclose = 0;
 689   print_rtx (x);
 690   fprintf (stderr, "\n");
 691 }
 692
 693 /* Count of rtx's to print with debug_rtx_list.
 694    This global exists because gdb user defined commands have no arguments.  */
 695
 696 DEBUG_VARIABLE int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
 697
 698 /* Call this function to print list from X on.
 699
 700    N is a count of the rtx's to print. Positive values print from the specified
 701    rtx on.  Negative values print a window around the rtx.
 702    EG: -5 prints 2 rtx's on either side (in addition to the specified rtx).  */
 703
 704 DEBUG_FUNCTION void
 705 debug_rtx_list (const_rtx x, int n)
 706 {
 707   int i,count;
 708   const_rtx insn;
 709
 710   count = n == 0 ? 1 : n < 0 ? -n : n;
 711
 712   /* If we are printing a window, back up to the start.  */
 713
 714   if (n < 0)
 715     for (i = count / 2; i > 0; i--)
 716       {
 717         if (PREV_INSN (x) == 0)
 718           break;
 719         x = PREV_INSN (x);
 720       }
 721
 722   for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
 723     {
 724       debug_rtx (insn);
 725       fprintf (stderr, "\n");
 726     }
 727 }
 728
 729 /* Call this function to print an rtx list from START to END inclusive.  */
 730
 731 DEBUG_FUNCTION void
 732 debug_rtx_range (const_rtx start, const_rtx end)
 733 {
 734   while (1)
 735     {
 736       debug_rtx (start);
 737       fprintf (stderr, "\n");
 738       if (!start || start == end)
 739         break;
 740       start = NEXT_INSN (start);
 741     }
 742 }
 743
 744 /* Call this function to search an rtx list to find one with insn uid UID,
 745    and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
 746    The found insn is returned to enable further debugging analysis.  */
 747
 748 DEBUG_FUNCTION const_rtx
 749 debug_rtx_find (const_rtx x, int uid)
 750 {
 751   while (x != 0 && INSN_UID (x) != uid)
 752     x = NEXT_INSN (x);
 753   if (x != 0)
 754     {
 755       debug_rtx_list (x, debug_rtx_count);
 756       return x;
 757     }
 758   else
 759     {
 760       fprintf (stderr, "insn uid %d not found\n", uid);
 761       return 0;
 762     }
 763 }
 764
 765 /* External entry point for printing a chain of insns
 766    starting with RTX_FIRST onto file OUTF.
 767    A blank line separates insns.
 768
 769    If RTX_FIRST is not an insn, then it alone is printed, with no newline.  */
 770
 771 void
 772 print_rtl (FILE *outf, const_rtx rtx_first)
 773 {
 774   const_rtx tmp_rtx;
 775
 776   outfile = outf;
 777   sawclose = 0;
 778
 779   if (rtx_first == 0)
 780     {
 781       fputs (print_rtx_head, outf);
 782       fputs ("(nil)\n", outf);
 783     }
 784   else
 785     switch (GET_CODE (rtx_first))
 786       {
 787       case INSN:
 788       case JUMP_INSN:
 789       case CALL_INSN:
 790       case NOTE:
 791       case CODE_LABEL:
 792       case BARRIER:
 793         for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
 794           {
 795             fputs (print_rtx_head, outfile);
 796             print_rtx (tmp_rtx);
 797             fprintf (outfile, "\n");
 798           }
 799         break;
 800
 801       default:
 802         fputs (print_rtx_head, outfile);
 803         print_rtx (rtx_first);
 804       }
 805 }
 806
 807 /* Like print_rtx, except specify a file.  */
 808 /* Return nonzero if we actually printed anything.  */
 809
 810 int
 811 print_rtl_single (FILE *outf, const_rtx x)
 812 {
 813   outfile = outf;
 814   sawclose = 0;
 815   fputs (print_rtx_head, outfile);
 816   print_rtx (x);
 817   putc ('\n', outf);
 818   return 1;
 819 }
 820
 821
 822 /* Like print_rtl except without all the detail; for example,
 823    if RTX is a CONST_INT then print in decimal format.  */
 824
 825 void
 826 print_simple_rtl (FILE *outf, const_rtx x)
 827 {
 828   flag_simple = 1;
 829   print_rtl (outf, x);
 830   flag_simple = 0;
 831 }