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 "predict.h"
  41 #include "vec.h"
  42 #include "hashtab.h"
  43 #include "hash-set.h"
  44 #include "machmode.h"
  45 #include "input.h"
  46 #include "function.h"
  47 #include "basic-block.h"
  48 #include "diagnostic.h"
  49 #include "tree-pretty-print.h"
  50 #include "cselib.h"
  51 #include "dumpfile.h"   /* for dump_flags */
  52 #include "dwarf2out.h"
  53 #endif
  54
  55 static FILE *outfile;
  56
  57 static int sawclose = 0;
  58
  59 static int indent;
  60
  61 static bool in_call_function_usage;
  62
  63 static void print_rtx (const_rtx);
  64
  65 /* String printed at beginning of each RTL when it is dumped.
  66    This string is set to ASM_COMMENT_START when the RTL is dumped in
  67    the assembly output file.  */
  68 const char *print_rtx_head = "";
  69
  70 #ifdef GENERATOR_FILE
  71 /* These are defined from the .opt file when not used in generator
  72    programs.  */
  73
  74 /* Nonzero means suppress output of instruction numbers
  75    in debugging dumps.
  76    This must be defined here so that programs like gencodes can be linked.  */
  77 int flag_dump_unnumbered = 0;
  78
  79 /* Nonzero means suppress output of instruction numbers for previous
  80    and next insns in debugging dumps.
  81    This must be defined here so that programs like gencodes can be linked.  */
  82 int flag_dump_unnumbered_links = 0;
  83 #endif
  84
  85 /* Nonzero means use simplified format without flags, modes, etc.  */
  86 int flag_simple = 0;
  87
  88 #ifndef GENERATOR_FILE
  89 void
  90 print_mem_expr (FILE *outfile, const_tree expr)
  91 {
  92   fputc (' ', outfile);
  93   print_generic_expr (outfile, CONST_CAST_TREE (expr), dump_flags);
  94 }
  95 #endif
  96
  97 /* Print IN_RTX onto OUTFILE.  This is the recursive part of printing.  */
  98
  99 static void
 100 print_rtx (const_rtx in_rtx)
 101 {
 102   int i = 0;
 103   int j;
 104   const char *format_ptr;
 105   int is_insn;
 106
 107   if (sawclose)
 108     {
 109       if (flag_simple)
 110         fputc (' ', outfile);
 111       else
 112         fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
 113       sawclose = 0;
 114     }
 115
 116   if (in_rtx == 0)
 117     {
 118       fputs ("(nil)", outfile);
 119       sawclose = 1;
 120       return;
 121     }
 122   else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
 123     {
 124        fprintf (outfile, "(??? bad code %d\n%s%*s)", GET_CODE (in_rtx),
 125                 print_rtx_head, indent * 2, "");
 126        sawclose = 1;
 127        return;
 128     }
 129
 130   is_insn = INSN_P (in_rtx);
 131
 132   /* Print name of expression code.  */
 133   if (flag_simple && CONST_INT_P (in_rtx))
 134     fputc ('(', outfile);
 135   else
 136     fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
 137
 138   if (! flag_simple)
 139     {
 140       if (RTX_FLAG (in_rtx, in_struct))
 141         fputs ("/s", outfile);
 142
 143       if (RTX_FLAG (in_rtx, volatil))
 144         fputs ("/v", outfile);
 145
 146       if (RTX_FLAG (in_rtx, unchanging))
 147         fputs ("/u", outfile);
 148
 149       if (RTX_FLAG (in_rtx, frame_related))
 150         fputs ("/f", outfile);
 151
 152       if (RTX_FLAG (in_rtx, jump))
 153         fputs ("/j", outfile);
 154
 155       if (RTX_FLAG (in_rtx, call))
 156         fputs ("/c", outfile);
 157
 158       if (RTX_FLAG (in_rtx, return_val))
 159         fputs ("/i", outfile);
 160
 161       /* Print REG_NOTE names for EXPR_LIST and INSN_LIST.  */
 162       if ((GET_CODE (in_rtx) == EXPR_LIST
 163            || GET_CODE (in_rtx) == INSN_LIST
 164            || GET_CODE (in_rtx) == INT_LIST)
 165           && (int)GET_MODE (in_rtx) < REG_NOTE_MAX
 166           && !in_call_function_usage)
 167         fprintf (outfile, ":%s",
 168                  GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
 169
 170       /* For other rtl, print the mode if it's not VOID.  */
 171       else if (GET_MODE (in_rtx) != VOIDmode)
 172         fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
 173
 174 #ifndef GENERATOR_FILE
 175       if (GET_CODE (in_rtx) == VAR_LOCATION)
 176         {
 177           if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST)
 178             fputs (" <debug string placeholder>", outfile);
 179           else
 180             print_mem_expr (outfile, PAT_VAR_LOCATION_DECL (in_rtx));
 181           fputc (' ', outfile);
 182           print_rtx (PAT_VAR_LOCATION_LOC (in_rtx));
 183           if (PAT_VAR_LOCATION_STATUS (in_rtx)
 184               == VAR_INIT_STATUS_UNINITIALIZED)
 185             fprintf (outfile, " [uninit]");
 186           sawclose = 1;
 187           i = GET_RTX_LENGTH (VAR_LOCATION);
 188         }
 189 #endif
 190     }
 191
 192 #ifndef GENERATOR_FILE
 193   if (CONST_DOUBLE_AS_FLOAT_P (in_rtx))
 194     i = 5;
 195 #endif
 196
 197   if (INSN_CHAIN_CODE_P (GET_CODE (in_rtx)))
 198     {
 199       if (flag_dump_unnumbered)
 200         fprintf (outfile, " #");
 201       else
 202         fprintf (outfile, " %d", INSN_UID (in_rtx));
 203     }
 204
 205   /* Get the format string and skip the first elements if we have handled
 206      them already.  */
 207   format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
 208   for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
 209     switch (*format_ptr++)
 210       {
 211         const char *str;
 212
 213       case 'T':
 214         str = XTMPL (in_rtx, i);
 215         goto string;
 216
 217       case 'S':
 218       case 's':
 219         str = XSTR (in_rtx, i);
 220       string:
 221
 222         if (str == 0)
 223           fputs (" \"\"", outfile);
 224         else
 225           fprintf (outfile, " (\"%s\")", str);
 226         sawclose = 1;
 227         break;
 228
 229         /* 0 indicates a field for internal use that should not be printed.
 230            An exception is the third field of a NOTE, where it indicates
 231            that the field has several different valid contents.  */
 232       case '0':
 233 #ifndef GENERATOR_FILE
 234         if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
 235           {
 236             int flags = SYMBOL_REF_FLAGS (in_rtx);
 237             if (flags)
 238               fprintf (outfile, " [flags %#x]", flags);
 239             tree decl = SYMBOL_REF_DECL (in_rtx);
 240             if (decl)
 241               print_node_brief (outfile, "", decl, dump_flags);
 242           }
 243         else if (i == 3 && NOTE_P (in_rtx))
 244           {
 245             switch (NOTE_KIND (in_rtx))
 246               {
 247               case NOTE_INSN_EH_REGION_BEG:
 248               case NOTE_INSN_EH_REGION_END:
 249                 if (flag_dump_unnumbered)
 250                   fprintf (outfile, " #");
 251                 else
 252                   fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
 253                 sawclose = 1;
 254                 break;
 255
 256               case NOTE_INSN_BLOCK_BEG:
 257               case NOTE_INSN_BLOCK_END:
 258                 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
 259                 sawclose = 1;
 260                 break;
 261
 262               case NOTE_INSN_BASIC_BLOCK:
 263                 {
 264                   basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
 265                   if (bb != 0)
 266                     fprintf (outfile, " [bb %d]", bb->index);
 267                   break;
 268                 }
 269
 270               case NOTE_INSN_DELETED_LABEL:
 271               case NOTE_INSN_DELETED_DEBUG_LABEL:
 272                 {
 273                   const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
 274                   if (label)
 275                     fprintf (outfile, " (\"%s\")", label);
 276                   else
 277                     fprintf (outfile, " \"\"");
 278                 }
 279                 break;
 280
 281               case NOTE_INSN_SWITCH_TEXT_SECTIONS:
 282                 {
 283                   basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
 284                   if (bb != 0)
 285                     fprintf (outfile, " [bb %d]", bb->index);
 286                   break;
 287                 }
 288
 289               case NOTE_INSN_VAR_LOCATION:
 290               case NOTE_INSN_CALL_ARG_LOCATION:
 291                 fputc (' ', outfile);
 292                 print_rtx (NOTE_VAR_LOCATION (in_rtx));
 293                 break;
 294
 295               case NOTE_INSN_CFI:
 296                 fputc ('\n', outfile);
 297                 output_cfi_directive (outfile, NOTE_CFI (in_rtx));
 298                 fputc ('\t', outfile);
 299                 break;
 300
 301               default:
 302                 break;
 303               }
 304           }
 305         else if (i == 7 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL)
 306           {
 307             /* Output the JUMP_LABEL reference.  */
 308             fprintf (outfile, "\n%s%*s -> ", print_rtx_head, indent * 2, "");
 309             if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN)
 310               fprintf (outfile, "return");
 311             else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN)
 312               fprintf (outfile, "simple_return");
 313             else
 314               fprintf (outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx)));
 315           }
 316         else if (i == 0 && GET_CODE (in_rtx) == VALUE)
 317           {
 318             cselib_val *val = CSELIB_VAL_PTR (in_rtx);
 319
 320             fprintf (outfile, " %u:%u", val->uid, val->hash);
 321             dump_addr (outfile, " @", in_rtx);
 322             dump_addr (outfile, "/", (void*)val);
 323           }
 324         else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
 325           {
 326             fprintf (outfile, " D#%i",
 327                      DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
 328           }
 329         else if (i == 0 && GET_CODE (in_rtx) == ENTRY_VALUE)
 330           {
 331             indent += 2;
 332             if (!sawclose)
 333               fprintf (outfile, " ");
 334             print_rtx (ENTRY_VALUE_EXP (in_rtx));
 335             indent -= 2;
 336           }
 337 #endif
 338         break;
 339
 340       case 'e':
 341       do_e:
 342         indent += 2;
 343         if (i == 6 && INSN_P (in_rtx))
 344           /* Put REG_NOTES on their own line.  */
 345           fprintf (outfile, "\n%s%*s",
 346                    print_rtx_head, indent * 2, "");
 347         if (!sawclose)
 348           fprintf (outfile, " ");
 349         if (i == 7 && CALL_P (in_rtx))
 350           {
 351             in_call_function_usage = true;
 352             print_rtx (XEXP (in_rtx, i));
 353             in_call_function_usage = false;
 354           }
 355         else
 356           print_rtx (XEXP (in_rtx, i));
 357         indent -= 2;
 358         break;
 359
 360       case 'E':
 361       case 'V':
 362         indent += 2;
 363         if (sawclose)
 364           {
 365             fprintf (outfile, "\n%s%*s",
 366                      print_rtx_head, indent * 2, "");
 367             sawclose = 0;
 368           }
 369         fputs (" [", outfile);
 370         if (NULL != XVEC (in_rtx, i))
 371           {
 372             indent += 2;
 373             if (XVECLEN (in_rtx, i))
 374               sawclose = 1;
 375
 376             for (j = 0; j < XVECLEN (in_rtx, i); j++)
 377               print_rtx (XVECEXP (in_rtx, i, j));
 378
 379             indent -= 2;
 380           }
 381         if (sawclose)
 382           fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
 383
 384         fputs ("]", outfile);
 385         sawclose = 1;
 386         indent -= 2;
 387         break;
 388
 389       case 'w':
 390         if (! flag_simple)
 391           fprintf (outfile, " ");
 392         fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
 393         if (! flag_simple)
 394           fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
 395                    (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
 396         break;
 397
 398       case 'i':
 399         if (i == 4 && INSN_P (in_rtx))
 400           {
 401 #ifndef GENERATOR_FILE
 402             const rtx_insn *in_insn = as_a <const rtx_insn *> (in_rtx);
 403
 404             /*  Pretty-print insn locations.  Ignore scoping as it is mostly
 405                 redundant with line number information and do not print anything
 406                 when there is no location information available.  */
 407             if (INSN_HAS_LOCATION (in_insn))
 408               {
 409                 expanded_location xloc = insn_location (in_insn);
 410                 fprintf (outfile, " %s:%i", xloc.file, xloc.line);
 411               }
 412 #endif
 413           }
 414         else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
 415           {
 416 #ifndef GENERATOR_FILE
 417             if (ASM_OPERANDS_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
 418               fprintf (outfile, " %s:%i",
 419                        LOCATION_FILE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
 420                        LOCATION_LINE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
 421 #endif
 422           }
 423         else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT)
 424           {
 425 #ifndef GENERATOR_FILE
 426             if (ASM_INPUT_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
 427               fprintf (outfile, " %s:%i",
 428                        LOCATION_FILE (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
 429                        LOCATION_LINE (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
 430 #endif
 431           }
 432         else if (i == 5 && NOTE_P (in_rtx))
 433           {
 434             /* This field is only used for NOTE_INSN_DELETED_LABEL, and
 435                other times often contains garbage from INSN->NOTE death.  */
 436             if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL
 437                 || NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_DEBUG_LABEL)
 438               fprintf (outfile, " %d",  XINT (in_rtx, i));
 439           }
 440 #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0
 441         else if (i == 1
 442                  && GET_CODE (in_rtx) == UNSPEC_VOLATILE
 443                  && XINT (in_rtx, 1) >= 0
 444                  && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES)
 445           fprintf (outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]);
 446 #endif
 447 #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0
 448         else if (i == 1
 449                  && (GET_CODE (in_rtx) == UNSPEC
 450                      || GET_CODE (in_rtx) == UNSPEC_VOLATILE)
 451                  && XINT (in_rtx, 1) >= 0
 452                  && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES)
 453           fprintf (outfile, " %s", unspec_strings[XINT (in_rtx, 1)]);
 454 #endif
 455         else
 456           {
 457             int value = XINT (in_rtx, i);
 458             const char *name;
 459
 460 #ifndef GENERATOR_FILE
 461             if (REG_P (in_rtx) && (unsigned) value < FIRST_PSEUDO_REGISTER)
 462               fprintf (outfile, " %d %s", value, reg_names[value]);
 463             else if (REG_P (in_rtx)
 464                      && (unsigned) value <= LAST_VIRTUAL_REGISTER)
 465               {
 466                 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
 467                   fprintf (outfile, " %d virtual-incoming-args", value);
 468                 else if (value == VIRTUAL_STACK_VARS_REGNUM)
 469                   fprintf (outfile, " %d virtual-stack-vars", value);
 470                 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
 471                   fprintf (outfile, " %d virtual-stack-dynamic", value);
 472                 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
 473                   fprintf (outfile, " %d virtual-outgoing-args", value);
 474                 else if (value == VIRTUAL_CFA_REGNUM)
 475                   fprintf (outfile, " %d virtual-cfa", value);
 476                 else if (value == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM)
 477                   fprintf (outfile, " %d virtual-preferred-stack-boundary",
 478                            value);
 479                 else
 480                   fprintf (outfile, " %d virtual-reg-%d", value,
 481                            value-FIRST_VIRTUAL_REGISTER);
 482               }
 483             else
 484 #endif
 485               if (flag_dump_unnumbered
 486                      && (is_insn || NOTE_P (in_rtx)))
 487               fputc ('#', outfile);
 488             else
 489               fprintf (outfile, " %d", value);
 490
 491 #ifndef GENERATOR_FILE
 492             if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
 493               {
 494                 fputs (" [", outfile);
 495                 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
 496                   fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
 497                 if (REG_EXPR (in_rtx))
 498                   print_mem_expr (outfile, REG_EXPR (in_rtx));
 499
 500                 if (REG_OFFSET (in_rtx))
 501                   fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
 502                            REG_OFFSET (in_rtx));
 503                 fputs (" ]", outfile);
 504               }
 505             if (REG_P (in_rtx) && REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
 506               fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
 507 #endif
 508
 509             if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
 510                 && XINT (in_rtx, i) >= 0
 511                 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
 512               fprintf (outfile, " {%s}", name);
 513             sawclose = 0;
 514           }
 515         break;
 516
 517       /* Print NOTE_INSN names rather than integer codes.  */
 518
 519       case 'n':
 520         fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
 521         sawclose = 0;
 522         break;
 523
 524       case 'u':
 525         if (XEXP (in_rtx, i) != NULL)
 526           {
 527             rtx sub = XEXP (in_rtx, i);
 528             enum rtx_code subc = GET_CODE (sub);
 529
 530             if (GET_CODE (in_rtx) == LABEL_REF)
 531               {
 532                 if (subc == NOTE
 533                     && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
 534                   {
 535                     if (flag_dump_unnumbered)
 536                       fprintf (outfile, " [# deleted]");
 537                     else
 538                       fprintf (outfile, " [%d deleted]", INSN_UID (sub));
 539                     sawclose = 0;
 540                     break;
 541                   }
 542
 543                 if (subc != CODE_LABEL)
 544                   goto do_e;
 545               }
 546
 547             if (flag_dump_unnumbered
 548                 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
 549                     && (INSN_P (in_rtx) || NOTE_P (in_rtx)
 550                         || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
 551               fputs (" #", outfile);
 552             else
 553               fprintf (outfile, " %d", INSN_UID (sub));
 554           }
 555         else
 556           fputs (" 0", outfile);
 557         sawclose = 0;
 558         break;
 559
 560       case 't':
 561 #ifndef GENERATOR_FILE
 562         if (i == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR)
 563           print_mem_expr (outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx));
 564         else if (i == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF)
 565           print_mem_expr (outfile, DEBUG_PARAMETER_REF_DECL (in_rtx));
 566         else
 567           dump_addr (outfile, " ", XTREE (in_rtx, i));
 568 #endif
 569         break;
 570
 571       case '*':
 572         fputs (" Unknown", outfile);
 573         sawclose = 0;
 574         break;
 575
 576       case 'B':
 577 #ifndef GENERATOR_FILE
 578         if (XBBDEF (in_rtx, i))
 579           fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
 580 #endif
 581         break;
 582
 583       default:
 584         gcc_unreachable ();
 585       }
 586
 587   switch (GET_CODE (in_rtx))
 588     {
 589 #ifndef GENERATOR_FILE
 590     case MEM:
 591       if (__builtin_expect (final_insns_dump_p, false))
 592         fprintf (outfile, " [");
 593       else
 594         fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
 595                  (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
 596
 597       if (MEM_EXPR (in_rtx))
 598         print_mem_expr (outfile, MEM_EXPR (in_rtx));
 599       else
 600         fputc (' ', outfile);
 601
 602       if (MEM_OFFSET_KNOWN_P (in_rtx))
 603         fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, MEM_OFFSET (in_rtx));
 604
 605       if (MEM_SIZE_KNOWN_P (in_rtx))
 606         fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC, MEM_SIZE (in_rtx));
 607
 608       if (MEM_ALIGN (in_rtx) != 1)
 609         fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
 610
 611       if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
 612         fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
 613
 614       fputc (']', outfile);
 615       break;
 616
 617     case CONST_DOUBLE:
 618       if (FLOAT_MODE_P (GET_MODE (in_rtx)))
 619         {
 620           char s[60];
 621
 622           real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 623                            sizeof (s), 0, 1);
 624           fprintf (outfile, " %s", s);
 625
 626           real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
 627                                sizeof (s), 0, 1);
 628           fprintf (outfile, " [%s]", s);
 629         }
 630       break;
 631
 632     case CONST_WIDE_INT:
 633       fprintf (outfile, " ");
 634       cwi_output_hex (outfile, in_rtx);
 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   fputc (')', outfile);
 655   sawclose = 1;
 656 }
 657
 658 /* Print an rtx on the current line of FILE.  Initially indent IND
 659    characters.  */
 660
 661 void
 662 print_inline_rtx (FILE *outf, const_rtx x, int ind)
 663 {
 664   int oldsaw = sawclose;
 665   int oldindent = indent;
 666
 667   sawclose = 0;
 668   indent = ind;
 669   outfile = outf;
 670   print_rtx (x);
 671   sawclose = oldsaw;
 672   indent = oldindent;
 673 }
 674
 675 /* Call this function from the debugger to see what X looks like.  */
 676
 677 DEBUG_FUNCTION void
 678 debug_rtx (const_rtx x)
 679 {
 680   outfile = stderr;
 681   sawclose = 0;
 682   print_rtx (x);
 683   fprintf (stderr, "\n");
 684 }
 685
 686 /* Dump rtx REF.  */
 687
 688 DEBUG_FUNCTION void
 689 debug (const rtx_def &ref)
 690 {
 691   debug_rtx (&ref);
 692 }
 693
 694 DEBUG_FUNCTION void
 695 debug (const rtx_def *ptr)
 696 {
 697   if (ptr)
 698     debug (*ptr);
 699   else
 700     fprintf (stderr, "<nil>\n");
 701 }
 702
 703 /* Count of rtx's to print with debug_rtx_list.
 704    This global exists because gdb user defined commands have no arguments.  */
 705
 706 DEBUG_VARIABLE int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
 707
 708 /* Call this function to print list from X on.
 709
 710    N is a count of the rtx's to print. Positive values print from the specified
 711    rtx_insn on.  Negative values print a window around the rtx_insn.
 712    EG: -5 prints 2 rtx_insn's on either side (in addition to the specified
 713    rtx_insn).  */
 714
 715 DEBUG_FUNCTION void
 716 debug_rtx_list (const rtx_insn *x, int n)
 717 {
 718   int i,count;
 719   const rtx_insn *insn;
 720
 721   count = n == 0 ? 1 : n < 0 ? -n : n;
 722
 723   /* If we are printing a window, back up to the start.  */
 724
 725   if (n < 0)
 726     for (i = count / 2; i > 0; i--)
 727       {
 728         if (PREV_INSN (x) == 0)
 729           break;
 730         x = PREV_INSN (x);
 731       }
 732
 733   for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
 734     {
 735       debug_rtx (insn);
 736       fprintf (stderr, "\n");
 737     }
 738 }
 739
 740 /* Call this function to print an rtx_insn list from START to END
 741    inclusive.  */
 742
 743 DEBUG_FUNCTION void
 744 debug_rtx_range (const rtx_insn *start, const rtx_insn *end)
 745 {
 746   while (1)
 747     {
 748       debug_rtx (start);
 749       fprintf (stderr, "\n");
 750       if (!start || start == end)
 751         break;
 752       start = NEXT_INSN (start);
 753     }
 754 }
 755
 756 /* Call this function to search an rtx_insn list to find one with insn uid UID,
 757    and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
 758    The found insn is returned to enable further debugging analysis.  */
 759
 760 DEBUG_FUNCTION const_rtx
 761 debug_rtx_find (const rtx_insn *x, int uid)
 762 {
 763   while (x != 0 && INSN_UID (x) != uid)
 764     x = NEXT_INSN (x);
 765   if (x != 0)
 766     {
 767       debug_rtx_list (x, debug_rtx_count);
 768       return x;
 769     }
 770   else
 771     {
 772       fprintf (stderr, "insn uid %d not found\n", uid);
 773       return 0;
 774     }
 775 }
 776
 777 /* External entry point for printing a chain of insns
 778    starting with RTX_FIRST onto file OUTF.
 779    A blank line separates insns.
 780
 781    If RTX_FIRST is not an insn, then it alone is printed, with no newline.  */
 782
 783 void
 784 print_rtl (FILE *outf, const_rtx rtx_first)
 785 {
 786   const rtx_insn *tmp_rtx;
 787
 788   outfile = outf;
 789   sawclose = 0;
 790
 791   if (rtx_first == 0)
 792     {
 793       fputs (print_rtx_head, outf);
 794       fputs ("(nil)\n", outf);
 795     }
 796   else
 797     switch (GET_CODE (rtx_first))
 798       {
 799       case INSN:
 800       case JUMP_INSN:
 801       case CALL_INSN:
 802       case NOTE:
 803       case CODE_LABEL:
 804       case JUMP_TABLE_DATA:
 805       case BARRIER:
 806         for (tmp_rtx = as_a <const rtx_insn *> (rtx_first);
 807              tmp_rtx != 0;
 808              tmp_rtx = NEXT_INSN (tmp_rtx))
 809           {
 810             fputs (print_rtx_head, outfile);
 811             print_rtx (tmp_rtx);
 812             fprintf (outfile, "\n");
 813           }
 814         break;
 815
 816       default:
 817         fputs (print_rtx_head, outfile);
 818         print_rtx (rtx_first);
 819       }
 820 }
 821
 822 /* Like print_rtx, except specify a file.  */
 823 /* Return nonzero if we actually printed anything.  */
 824
 825 int
 826 print_rtl_single (FILE *outf, const_rtx x)
 827 {
 828   return print_rtl_single_with_indent (outf, x, 0);
 829 }
 830
 831 /* Like print_rtl_single, except specify a file and indentation.  */
 832
 833 int
 834 print_rtl_single_with_indent (FILE *outf, const_rtx x, int ind)
 835 {
 836   int old_indent = indent;
 837   char *s_indent = (char *) alloca ((size_t) ind + 1);
 838   memset ((void *) s_indent, ' ', (size_t) ind);
 839   s_indent[ind] = '\0';
 840
 841   indent = ind;
 842   outfile = outf;
 843   sawclose = 0;
 844   fputs (s_indent, outfile);
 845   fputs (print_rtx_head, outfile);
 846   print_rtx (x);
 847   putc ('\n', outf);
 848   indent = old_indent;
 849   return 1;
 850 }
 851
 852
 853 /* Like print_rtl except without all the detail; for example,
 854    if RTX is a CONST_INT then print in decimal format.  */
 855
 856 void
 857 print_simple_rtl (FILE *outf, const_rtx x)
 858 {
 859   flag_simple = 1;
 860   print_rtl (outf, x);
 861   flag_simple = 0;
 862 }