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/* Print RTL for GCC.
   Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003,
   2004, 2005, 2007
   Free Software Foundation, Inc.
 
This file is part of GCC.
 
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
 
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.
 
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */
 
/* This file is compiled twice: once for the generator programs,
   once for the compiler.  */
#ifdef GENERATOR_FILE
#include "bconfig.h"
#else
#include "config.h"
#endif
 
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "rtl.h"
 
/* These headers all define things which are not available in
   generator programs.  */
#ifndef GENERATOR_FILE
#include "tree.h"
#include "real.h"
#include "flags.h"
#include "hard-reg-set.h"
#include "basic-block.h"
#endif
 
static FILE *outfile;
 
static int sawclose = 0;
 
static int indent;
 
static void print_rtx (rtx);
 
/* String printed at beginning of each RTL when it is dumped.
   This string is set to ASM_COMMENT_START when the RTL is dumped in
   the assembly output file.  */
const char *print_rtx_head = "";
 
/* Nonzero means suppress output of instruction numbers and line number
   notes in debugging dumps.
   This must be defined here so that programs like gencodes can be linked.  */
int flag_dump_unnumbered = 0;
 
/* Nonzero means use simplified format without flags, modes, etc.  */
int flag_simple = 0;
 
/* Nonzero if we are dumping graphical description.  */
int dump_for_graph;
 
#ifndef GENERATOR_FILE
static void
print_decl_name (FILE *outfile, tree node)
{
  if (DECL_NAME (node))
    fputs (IDENTIFIER_POINTER (DECL_NAME (node)), outfile);
  else
    {
      if (TREE_CODE (node) == LABEL_DECL && LABEL_DECL_UID (node) != -1)
        fprintf (outfile, "L." HOST_WIDE_INT_PRINT_DEC, LABEL_DECL_UID (node));
      else
        {
          char c = TREE_CODE (node) == CONST_DECL ? 'C' : 'D';
          fprintf (outfile, "%c.%u", c, DECL_UID (node));
        }
    }
}
 
void
print_mem_expr (FILE *outfile, tree expr)
{
  if (TREE_CODE (expr) == COMPONENT_REF)
    {
      if (TREE_OPERAND (expr, 0))
        print_mem_expr (outfile, TREE_OPERAND (expr, 0));
      else
        fputs (" <variable>", outfile);
      fputc ('.', outfile);
      print_decl_name (outfile, TREE_OPERAND (expr, 1));
    }
  else if (TREE_CODE (expr) == INDIRECT_REF)
    {
      fputs (" (*", outfile);
      print_mem_expr (outfile, TREE_OPERAND (expr, 0));
      fputs (")", outfile);
    }
  else if (TREE_CODE (expr) == ALIGN_INDIRECT_REF)
    {
      fputs (" (A*", outfile);
      print_mem_expr (outfile, TREE_OPERAND (expr, 0));
      fputs (")", outfile);
    }
  else if (TREE_CODE (expr) == MISALIGNED_INDIRECT_REF)
    {
      fputs (" (M*", outfile);
      print_mem_expr (outfile, TREE_OPERAND (expr, 0));
      fputs (")", outfile);
    }
  else if (TREE_CODE (expr) == RESULT_DECL)
    fputs (" <result>", outfile);
  else
    {
      fputc (' ', outfile);
      print_decl_name (outfile, expr);
    }
}
#endif
 
/* Print IN_RTX onto OUTFILE.  This is the recursive part of printing.  */
 
static void
print_rtx (rtx in_rtx)
{
  int i = 0;
  int j;
  const char *format_ptr;
  int is_insn;
 
  if (sawclose)
    {
      if (flag_simple)
        fputc (' ', outfile);
      else
        fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
      sawclose = 0;
    }
 
  if (in_rtx == 0)
    {
      fputs ("(nil)", outfile);
      sawclose = 1;
      return;
    }
  else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
    {
       fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
       sawclose = 1;
       return;
    }
 
  is_insn = INSN_P (in_rtx);
 
  /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
     in separate nodes and therefore have to handle them special here.  */
  if (dump_for_graph
      && (is_insn || NOTE_P (in_rtx)
          || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
    {
      i = 3;
      indent = 0;
    }
  else
    {
      /* Print name of expression code.  */
      if (flag_simple && GET_CODE (in_rtx) == CONST_INT)
        fputc ('(', outfile);
      else
        fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
 
      if (! flag_simple)
        {
          if (RTX_FLAG (in_rtx, in_struct))
            fputs ("/s", outfile);
 
          if (RTX_FLAG (in_rtx, volatil))
            fputs ("/v", outfile);
 
          if (RTX_FLAG (in_rtx, unchanging))
            fputs ("/u", outfile);
 
          if (RTX_FLAG (in_rtx, frame_related))
            fputs ("/f", outfile);
 
          if (RTX_FLAG (in_rtx, jump))
            fputs ("/j", outfile);
 
          if (RTX_FLAG (in_rtx, call))
            fputs ("/c", outfile);
 
          if (RTX_FLAG (in_rtx, return_val))
            fputs ("/i", outfile);
 
          /* Print REG_NOTE names for EXPR_LIST and INSN_LIST.  */
          if (GET_CODE (in_rtx) == EXPR_LIST
              || GET_CODE (in_rtx) == INSN_LIST)
            fprintf (outfile, ":%s",
                     GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
 
          /* For other rtl, print the mode if it's not VOID.  */
          else if (GET_MODE (in_rtx) != VOIDmode)
            fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
        }
    }
 
#ifndef GENERATOR_FILE
  if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
    i = 5;
#endif
 
  /* Get the format string and skip the first elements if we have handled
     them already.  */
  format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
  for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
    switch (*format_ptr++)
      {
        const char *str;
 
      case 'T':
        str = XTMPL (in_rtx, i);
        goto string;
 
      case 'S':
      case 's':
        str = XSTR (in_rtx, i);
      string:
 
        if (str == 0)
          fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
        else
          {
            if (dump_for_graph)
              fprintf (outfile, " (\\\"%s\\\")", str);
            else
              fprintf (outfile, " (\"%s\")", str);
          }
        sawclose = 1;
        break;
 
        /* 0 indicates a field for internal use that should not be printed.
           An exception is the third field of a NOTE, where it indicates
           that the field has several different valid contents.  */
      case '0':
        if (i == 1 && REG_P (in_rtx))
          {
            if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
              fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
          }
#ifndef GENERATOR_FILE
        else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
          {
            int flags = SYMBOL_REF_FLAGS (in_rtx);
            if (flags)
              fprintf (outfile, " [flags 0x%x]", flags);
          }
        else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
          {
            tree decl = SYMBOL_REF_DECL (in_rtx);
            if (decl)
              print_node_brief (outfile, "", decl, 0);
          }
#endif
        else if (i == 4 && NOTE_P (in_rtx))
          {
            switch (NOTE_LINE_NUMBER (in_rtx))
              {
              case NOTE_INSN_EH_REGION_BEG:
              case NOTE_INSN_EH_REGION_END:
                if (flag_dump_unnumbered)
                  fprintf (outfile, " #");
                else
                  fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
                sawclose = 1;
                break;
 
              case NOTE_INSN_BLOCK_BEG:
              case NOTE_INSN_BLOCK_END:
#ifndef GENERATOR_FILE
                dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
#endif
                sawclose = 1;
                break;
 
              case NOTE_INSN_BASIC_BLOCK:
                {
#ifndef GENERATOR_FILE
                  basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
                  if (bb != 0)
                    fprintf (outfile, " [bb %d]", bb->index);
#endif
                  break;
                }
 
              case NOTE_INSN_EXPECTED_VALUE:
                indent += 2;
                if (!sawclose)
                  fprintf (outfile, " ");
                print_rtx (NOTE_EXPECTED_VALUE (in_rtx));
                indent -= 2;
                break;
 
              case NOTE_INSN_DELETED_LABEL:
                {
                  const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
                  if (label)
                    fprintf (outfile, " (\"%s\")", label);
                  else
                    fprintf (outfile, " \"\"");
                }
                break;
 
              case NOTE_INSN_SWITCH_TEXT_SECTIONS:
                {
#ifndef GENERATOR_FILE
                  basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
                  if (bb != 0)
                    fprintf (outfile, " [bb %d]", bb->index);
#endif
                  break;
                }
 
              case NOTE_INSN_VAR_LOCATION:
#ifndef GENERATOR_FILE
                fprintf (outfile, " (");
                print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
                fprintf (outfile, " ");
                print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
                fprintf (outfile, ")");
#endif
                break;
 
              default:
                {
                  const char * const str = X0STR (in_rtx, i);
 
                  if (NOTE_LINE_NUMBER (in_rtx) < 0)
                    ;
                  else if (str == 0)
                    fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
                  else
                    {
                      if (dump_for_graph)
                        fprintf (outfile, " (\\\"%s\\\")", str);
                      else
                        fprintf (outfile, " (\"%s\")", str);
                    }
                  break;
                }
              }
          }
        break;
 
      case 'e':
      do_e:
        indent += 2;
        if (!sawclose)
          fprintf (outfile, " ");
        print_rtx (XEXP (in_rtx, i));
        indent -= 2;
        break;
 
      case 'E':
      case 'V':
        indent += 2;
        if (sawclose)
          {
            fprintf (outfile, "\n%s%*s",
                     print_rtx_head, indent * 2, "");
            sawclose = 0;
          }
        fputs (" [", outfile);
        if (NULL != XVEC (in_rtx, i))
          {
            indent += 2;
            if (XVECLEN (in_rtx, i))
              sawclose = 1;
 
            for (j = 0; j < XVECLEN (in_rtx, i); j++)
              print_rtx (XVECEXP (in_rtx, i, j));
 
            indent -= 2;
          }
        if (sawclose)
          fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
 
        fputs ("]", outfile);
        sawclose = 1;
        indent -= 2;
        break;
 
      case 'w':
        if (! flag_simple)
          fprintf (outfile, " ");
        fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
        if (! flag_simple)
          fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
                   XWINT (in_rtx, i));
        break;
 
      case 'i':
        if (i == 4 && INSN_P (in_rtx))
          {
#ifndef GENERATOR_FILE
            /*  Pretty-print insn locators.  Ignore scoping as it is mostly
                redundant with line number information and do not print anything
                when there is no location information available.  */
            if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
              fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
#endif
          }
        else if (i == 6 && NOTE_P (in_rtx))
          {
            /* This field is only used for NOTE_INSN_DELETED_LABEL, and
               other times often contains garbage from INSN->NOTE death.  */
            if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)
              fprintf (outfile, " %d",  XINT (in_rtx, i));
          }
        else
          {
            int value = XINT (in_rtx, i);
            const char *name;
 
#ifndef GENERATOR_FILE
            if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
              fprintf (outfile, " %d %s", REGNO (in_rtx),
                       reg_names[REGNO (in_rtx)]);
            else if (REG_P (in_rtx)
                     && value <= LAST_VIRTUAL_REGISTER)
              {
                if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
                  fprintf (outfile, " %d virtual-incoming-args", value);
                else if (value == VIRTUAL_STACK_VARS_REGNUM)
                  fprintf (outfile, " %d virtual-stack-vars", value);
                else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
                  fprintf (outfile, " %d virtual-stack-dynamic", value);
                else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
                  fprintf (outfile, " %d virtual-outgoing-args", value);
                else if (value == VIRTUAL_CFA_REGNUM)
                  fprintf (outfile, " %d virtual-cfa", value);
                else
                  fprintf (outfile, " %d virtual-reg-%d", value,
                           value-FIRST_VIRTUAL_REGISTER);
              }
            else
#endif
              if (flag_dump_unnumbered
                     && (is_insn || NOTE_P (in_rtx)))
              fputc ('#', outfile);
            else
              fprintf (outfile, " %d", value);
 
#ifndef GENERATOR_FILE
            if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
              {
                fputs (" [", outfile);
                if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
                  fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
                if (REG_EXPR (in_rtx))
                  print_mem_expr (outfile, REG_EXPR (in_rtx));
 
                if (REG_OFFSET (in_rtx))
                  fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
                           REG_OFFSET (in_rtx));
                fputs (" ]", outfile);
              }
#endif
 
            if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
                && XINT (in_rtx, i) >= 0
                && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
              fprintf (outfile, " {%s}", name);
            sawclose = 0;
          }
        break;
 
      /* Print NOTE_INSN names rather than integer codes.  */
 
      case 'n':
        if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS
            && XINT (in_rtx, i) < (int) NOTE_INSN_MAX)
          fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
        else
          fprintf (outfile, " %d", XINT (in_rtx, i));
        sawclose = 0;
        break;
 
      case 'u':
        if (XEXP (in_rtx, i) != NULL)
          {
            rtx sub = XEXP (in_rtx, i);
            enum rtx_code subc = GET_CODE (sub);
 
            if (GET_CODE (in_rtx) == LABEL_REF)
              {
                if (subc == NOTE
                    && NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)
                  {
                    if (flag_dump_unnumbered)
                      fprintf (outfile, " [# deleted]");
                    else
                      fprintf (outfile, " [%d deleted]", INSN_UID (sub));
                    sawclose = 0;
                    break;
                  }
 
                if (subc != CODE_LABEL)
                  goto do_e;
              }
 
            if (flag_dump_unnumbered)
              fputs (" #", outfile);
            else
              fprintf (outfile, " %d", INSN_UID (sub));
          }
        else
          fputs (" 0", outfile);
        sawclose = 0;
        break;
 
      case 'b':
#ifndef GENERATOR_FILE
        if (XBITMAP (in_rtx, i) == NULL)
          fputs (" {null}", outfile);
        else
          bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
#endif
        sawclose = 0;
        break;
 
      case 't':
#ifndef GENERATOR_FILE
        dump_addr (outfile, " ", XTREE (in_rtx, i));
#endif
        break;
 
      case '*':
        fputs (" Unknown", outfile);
        sawclose = 0;
        break;
 
      case 'B':
#ifndef GENERATOR_FILE
        if (XBBDEF (in_rtx, i))
          fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
#endif
        break;
 
      default:
        gcc_unreachable ();
      }
 
  switch (GET_CODE (in_rtx))
    {
#ifndef GENERATOR_FILE
    case MEM:
      fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));
 
      if (MEM_EXPR (in_rtx))
        print_mem_expr (outfile, MEM_EXPR (in_rtx));
 
      if (MEM_OFFSET (in_rtx))
        fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
                 INTVAL (MEM_OFFSET (in_rtx)));
 
      if (MEM_SIZE (in_rtx))
        fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
                 INTVAL (MEM_SIZE (in_rtx)));
 
      if (MEM_ALIGN (in_rtx) != 1)
        fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
 
      fputc (']', outfile);
      break;
 
    case CONST_DOUBLE:
      if (FLOAT_MODE_P (GET_MODE (in_rtx)))
        {
          char s[60];
 
          real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
                           sizeof (s), 0, 1);
          fprintf (outfile, " %s", s);
 
          real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
                               sizeof (s), 0, 1);
          fprintf (outfile, " [%s]", s);
        }
      break;
#endif
 
    case CODE_LABEL:
      fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
      switch (LABEL_KIND (in_rtx))
        {
          case LABEL_NORMAL: break;
          case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
          case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
          case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
          default: gcc_unreachable ();
        }
      break;
 
    default:
      break;
    }
 
  if (dump_for_graph
      && (is_insn || NOTE_P (in_rtx)
          || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
    sawclose = 0;
  else
    {
      fputc (')', outfile);
      sawclose = 1;
    }
}
 
/* Print an rtx on the current line of FILE.  Initially indent IND
   characters.  */
 
void
print_inline_rtx (FILE *outf, rtx x, int ind)
{
  int oldsaw = sawclose;
  int oldindent = indent;
 
  sawclose = 0;
  indent = ind;
  outfile = outf;
  print_rtx (x);
  sawclose = oldsaw;
  indent = oldindent;
}
 
/* Call this function from the debugger to see what X looks like.  */
 
void
debug_rtx (rtx x)
{
  outfile = stderr;
  sawclose = 0;
  print_rtx (x);
  fprintf (stderr, "\n");
}
 
/* Count of rtx's to print with debug_rtx_list.
   This global exists because gdb user defined commands have no arguments.  */
 
int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
 
/* Call this function to print list from X on.
 
   N is a count of the rtx's to print. Positive values print from the specified
   rtx on.  Negative values print a window around the rtx.
   EG: -5 prints 2 rtx's on either side (in addition to the specified rtx).  */
 
void
debug_rtx_list (rtx x, int n)
{
  int i,count;
  rtx insn;
 
  count = n == 0 ? 1 : n < 0 ? -n : n;
 
  /* If we are printing a window, back up to the start.  */
 
  if (n < 0)
    for (i = count / 2; i > 0; i--)
      {
        if (PREV_INSN (x) == 0)
          break;
        x = PREV_INSN (x);
      }
 
  for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
    {
      debug_rtx (insn);
      fprintf (stderr, "\n");
    }
}
 
/* Call this function to print an rtx list from START to END inclusive.  */
 
void
debug_rtx_range (rtx start, rtx end)
{
  while (1)
    {
      debug_rtx (start);
      fprintf (stderr, "\n");
      if (!start || start == end)
        break;
      start = NEXT_INSN (start);
    }
}
 
/* Call this function to search an rtx list to find one with insn uid UID,
   and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
   The found insn is returned to enable further debugging analysis.  */
 
rtx
debug_rtx_find (rtx x, int uid)
{
  while (x != 0 && INSN_UID (x) != uid)
    x = NEXT_INSN (x);
  if (x != 0)
    {
      debug_rtx_list (x, debug_rtx_count);
      return x;
    }
  else
    {
      fprintf (stderr, "insn uid %d not found\n", uid);
      return 0;
    }
}
 
/* External entry point for printing a chain of insns
   starting with RTX_FIRST onto file OUTF.
   A blank line separates insns.
 
   If RTX_FIRST is not an insn, then it alone is printed, with no newline.  */
 
void
print_rtl (FILE *outf, rtx rtx_first)
{
  rtx tmp_rtx;
 
  outfile = outf;
  sawclose = 0;
 
  if (rtx_first == 0)
    {
      fputs (print_rtx_head, outf);
      fputs ("(nil)\n", outf);
    }
  else
    switch (GET_CODE (rtx_first))
      {
      case INSN:
      case JUMP_INSN:
      case CALL_INSN:
      case NOTE:
      case CODE_LABEL:
      case BARRIER:
        for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
          if (! flag_dump_unnumbered
              || !NOTE_P (tmp_rtx) || NOTE_LINE_NUMBER (tmp_rtx) < 0)
            {
              fputs (print_rtx_head, outfile);
              print_rtx (tmp_rtx);
              fprintf (outfile, "\n");
            }
        break;
 
      default:
        fputs (print_rtx_head, outfile);
        print_rtx (rtx_first);
      }
}
 
/* Like print_rtx, except specify a file.  */
/* Return nonzero if we actually printed anything.  */
 
int
print_rtl_single (FILE *outf, rtx x)
{
  outfile = outf;
  sawclose = 0;
  if (! flag_dump_unnumbered
      || !NOTE_P (x) || NOTE_LINE_NUMBER (x) < 0)
    {
      fputs (print_rtx_head, outfile);
      print_rtx (x);
      putc ('\n', outf);
      return 1;
    }
  return 0;
}
 
 
/* Like print_rtl except without all the detail; for example,
   if RTX is a CONST_INT then print in decimal format.  */
 
void
print_simple_rtl (FILE *outf, rtx x)
{
  flag_simple = 1;
  print_rtl (outf, x);
  flag_simple = 0;
}

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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [print-rtl.c] - Blame information for rev 258

Line No.	Rev	Author	Line
1	38	julius	`/* Print RTL for GCC.`
2			`Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003,`
3			`2004, 2005, 2007`
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 "real.h"`
40			`#include "flags.h"`
41			`#include "hard-reg-set.h"`
42			`#include "basic-block.h"`
43			`#endif`
44
45			`static FILE *outfile;`
46
47			`static int sawclose = 0;`
48
49			`static int indent;`
50
51			`static void print_rtx (rtx);`
52
53			`/* String printed at beginning of each RTL when it is dumped.`
54			`This string is set to ASM_COMMENT_START when the RTL is dumped in`
55			`the assembly output file. */`
56			`const char *print_rtx_head = "";`
57
58			`/* Nonzero means suppress output of instruction numbers and line number`
59			`notes in debugging dumps.`
60			`This must be defined here so that programs like gencodes can be linked. */`
61			`int flag_dump_unnumbered = 0;`
62
63			`/* Nonzero means use simplified format without flags, modes, etc. */`
64			`int flag_simple = 0;`
65
66			`/* Nonzero if we are dumping graphical description. */`
67			`int dump_for_graph;`
68
69			`#ifndef GENERATOR_FILE`
70			`static void`
71			`print_decl_name (FILE *outfile, tree node)`
72			`{`
73			`if (DECL_NAME (node))`
74			`fputs (IDENTIFIER_POINTER (DECL_NAME (node)), outfile);`
75			`else`
76			`{`
77			`if (TREE_CODE (node) == LABEL_DECL && LABEL_DECL_UID (node) != -1)`
78			`fprintf (outfile, "L." HOST_WIDE_INT_PRINT_DEC, LABEL_DECL_UID (node));`
79			`else`
80			`{`
81			`char c = TREE_CODE (node) == CONST_DECL ? 'C' : 'D';`
82			`fprintf (outfile, "%c.%u", c, DECL_UID (node));`
83			`}`
84			`}`
85			`}`
86
87			`void`
88			`print_mem_expr (FILE *outfile, tree expr)`
89			`{`
90			`if (TREE_CODE (expr) == COMPONENT_REF)`
91			`{`
92			`if (TREE_OPERAND (expr, 0))`
93			`print_mem_expr (outfile, TREE_OPERAND (expr, 0));`
94			`else`
95			`fputs (" <variable>", outfile);`
96			`fputc ('.', outfile);`
97			`print_decl_name (outfile, TREE_OPERAND (expr, 1));`
98			`}`
99			`else if (TREE_CODE (expr) == INDIRECT_REF)`
100			`{`
101			`fputs (" (*", outfile);`
102			`print_mem_expr (outfile, TREE_OPERAND (expr, 0));`
103			`fputs (")", outfile);`
104			`}`
105			`else if (TREE_CODE (expr) == ALIGN_INDIRECT_REF)`
106			`{`
107			`fputs (" (A*", outfile);`
108			`print_mem_expr (outfile, TREE_OPERAND (expr, 0));`
109			`fputs (")", outfile);`
110			`}`
111			`else if (TREE_CODE (expr) == MISALIGNED_INDIRECT_REF)`
112			`{`
113			`fputs (" (M*", outfile);`
114			`print_mem_expr (outfile, TREE_OPERAND (expr, 0));`
115			`fputs (")", outfile);`
116			`}`
117			`else if (TREE_CODE (expr) == RESULT_DECL)`
118			`fputs (" <result>", outfile);`
119			`else`
120			`{`
121			`fputc (' ', outfile);`
122			`print_decl_name (outfile, expr);`
123			`}`
124			`}`
125			`#endif`
126
127			`/* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */`
128
129			`static void`
130			`print_rtx (rtx in_rtx)`
131			`{`
132			`int i = 0;`
133			`int j;`
134			`const char *format_ptr;`
135			`int is_insn;`
136
137			`if (sawclose)`
138			`{`
139			`if (flag_simple)`
140			`fputc (' ', outfile);`
141			`else`
142			`fprintf (outfile, "\n%s%s", print_rtx_head, indent 2, "");`
143			`sawclose = 0;`
144			`}`
145
146			`if (in_rtx == 0)`
147			`{`
148			`fputs ("(nil)", outfile);`
149			`sawclose = 1;`
150			`return;`
151			`}`
152			`else if (GET_CODE (in_rtx) > NUM_RTX_CODE)`
153			`{`
154			`fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));`
155			`sawclose = 1;`
156			`return;`
157			`}`
158
159			`is_insn = INSN_P (in_rtx);`
160
161			`/* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER`
162			`in separate nodes and therefore have to handle them special here. */`
163			`if (dump_for_graph`
164			`&& (is_insn \|\| NOTE_P (in_rtx)`
165			`\|\| LABEL_P (in_rtx) \|\| BARRIER_P (in_rtx)))`
166			`{`
167			`i = 3;`
168			`indent = 0;`
169			`}`
170			`else`
171			`{`
172			`/* Print name of expression code. */`
173			`if (flag_simple && GET_CODE (in_rtx) == CONST_INT)`
174			`fputc ('(', outfile);`
175			`else`
176			`fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));`
177
178			`if (! flag_simple)`
179			`{`
180			`if (RTX_FLAG (in_rtx, in_struct))`
181			`fputs ("/s", outfile);`
182
183			`if (RTX_FLAG (in_rtx, volatil))`
184			`fputs ("/v", outfile);`
185
186			`if (RTX_FLAG (in_rtx, unchanging))`
187			`fputs ("/u", outfile);`
188
189			`if (RTX_FLAG (in_rtx, frame_related))`
190			`fputs ("/f", outfile);`
191
192			`if (RTX_FLAG (in_rtx, jump))`
193			`fputs ("/j", outfile);`
194
195			`if (RTX_FLAG (in_rtx, call))`
196			`fputs ("/c", outfile);`
197
198			`if (RTX_FLAG (in_rtx, return_val))`
199			`fputs ("/i", outfile);`
200
201			`/* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */`
202			`if (GET_CODE (in_rtx) == EXPR_LIST`
203			`\|\| GET_CODE (in_rtx) == INSN_LIST)`
204			`fprintf (outfile, ":%s",`
205			`GET_REG_NOTE_NAME (GET_MODE (in_rtx)));`
206
207			`/* For other rtl, print the mode if it's not VOID. */`
208			`else if (GET_MODE (in_rtx) != VOIDmode)`
209			`fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));`
210			`}`
211			`}`
212
213			`#ifndef GENERATOR_FILE`
214			`if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))`
215			`i = 5;`
216			`#endif`
217
218			`/* Get the format string and skip the first elements if we have handled`
219			`them already. */`
220			`format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;`
221			`for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)`
222			`switch (*format_ptr++)`
223			`{`
224			`const char *str;`
225
226			`case 'T':`
227			`str = XTMPL (in_rtx, i);`
228			`goto string;`
229
230			`case 'S':`
231			`case 's':`
232			`str = XSTR (in_rtx, i);`
233			`string:`
234
235			`if (str == 0)`
236			`fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);`
237			`else`
238			`{`
239			`if (dump_for_graph)`
240			`fprintf (outfile, " (\\\"%s\\\")", str);`
241			`else`
242			`fprintf (outfile, " (\"%s\")", str);`
243			`}`
244			`sawclose = 1;`
245			`break;`
246
247			`/* 0 indicates a field for internal use that should not be printed.`
248			`An exception is the third field of a NOTE, where it indicates`
249			`that the field has several different valid contents. */`
250			`case '0':`
251			`if (i == 1 && REG_P (in_rtx))`
252			`{`
253			`if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))`
254			`fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));`
255			`}`
256			`#ifndef GENERATOR_FILE`
257			`else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)`
258			`{`
259			`int flags = SYMBOL_REF_FLAGS (in_rtx);`
260			`if (flags)`
261			`fprintf (outfile, " [flags 0x%x]", flags);`
262			`}`
263			`else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)`
264			`{`
265			`tree decl = SYMBOL_REF_DECL (in_rtx);`
266			`if (decl)`
267			`print_node_brief (outfile, "", decl, 0);`
268			`}`
269			`#endif`
270			`else if (i == 4 && NOTE_P (in_rtx))`
271			`{`
272			`switch (NOTE_LINE_NUMBER (in_rtx))`
273			`{`
274			`case NOTE_INSN_EH_REGION_BEG:`
275			`case NOTE_INSN_EH_REGION_END:`
276			`if (flag_dump_unnumbered)`
277			`fprintf (outfile, " #");`
278			`else`
279			`fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));`
280			`sawclose = 1;`
281			`break;`
282
283			`case NOTE_INSN_BLOCK_BEG:`
284			`case NOTE_INSN_BLOCK_END:`
285			`#ifndef GENERATOR_FILE`
286			`dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));`
287			`#endif`
288			`sawclose = 1;`
289			`break;`
290
291			`case NOTE_INSN_BASIC_BLOCK:`
292			`{`
293			`#ifndef GENERATOR_FILE`
294			`basic_block bb = NOTE_BASIC_BLOCK (in_rtx);`
295			`if (bb != 0)`
296			`fprintf (outfile, " [bb %d]", bb->index);`
297			`#endif`
298			`break;`
299			`}`
300
301			`case NOTE_INSN_EXPECTED_VALUE:`
302			`indent += 2;`
303			`if (!sawclose)`
304			`fprintf (outfile, " ");`
305			`print_rtx (NOTE_EXPECTED_VALUE (in_rtx));`
306			`indent -= 2;`
307			`break;`
308
309			`case NOTE_INSN_DELETED_LABEL:`
310			`{`
311			`const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);`
312			`if (label)`
313			`fprintf (outfile, " (\"%s\")", label);`
314			`else`
315			`fprintf (outfile, " \"\"");`
316			`}`
317			`break;`
318
319			`case NOTE_INSN_SWITCH_TEXT_SECTIONS:`
320			`{`
321			`#ifndef GENERATOR_FILE`
322			`basic_block bb = NOTE_BASIC_BLOCK (in_rtx);`
323			`if (bb != 0)`
324			`fprintf (outfile, " [bb %d]", bb->index);`
325			`#endif`
326			`break;`
327			`}`
328
329			`case NOTE_INSN_VAR_LOCATION:`
330			`#ifndef GENERATOR_FILE`
331			`fprintf (outfile, " (");`
332			`print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));`
333			`fprintf (outfile, " ");`
334			`print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));`
335			`fprintf (outfile, ")");`
336			`#endif`
337			`break;`
338
339			`default:`
340			`{`
341			`const char * const str = X0STR (in_rtx, i);`
342
343			`if (NOTE_LINE_NUMBER (in_rtx) < 0)`
344			`;`
345			`else if (str == 0)`
346			`fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);`
347			`else`
348			`{`
349			`if (dump_for_graph)`
350			`fprintf (outfile, " (\\\"%s\\\")", str);`
351			`else`
352			`fprintf (outfile, " (\"%s\")", str);`
353			`}`
354			`break;`
355			`}`
356			`}`
357			`}`
358			`break;`
359
360			`case 'e':`
361			`do_e:`
362			`indent += 2;`
363			`if (!sawclose)`
364			`fprintf (outfile, " ");`
365			`print_rtx (XEXP (in_rtx, i));`
366			`indent -= 2;`
367			`break;`
368
369			`case 'E':`
370			`case 'V':`
371			`indent += 2;`
372			`if (sawclose)`
373			`{`
374			`fprintf (outfile, "\n%s%*s",`
375			`print_rtx_head, indent * 2, "");`
376			`sawclose = 0;`
377			`}`
378			`fputs (" [", outfile);`
379			`if (NULL != XVEC (in_rtx, i))`
380			`{`
381			`indent += 2;`
382			`if (XVECLEN (in_rtx, i))`
383			`sawclose = 1;`
384
385			`for (j = 0; j < XVECLEN (in_rtx, i); j++)`
386			`print_rtx (XVECEXP (in_rtx, i, j));`
387
388			`indent -= 2;`
389			`}`
390			`if (sawclose)`
391			`fprintf (outfile, "\n%s%s", print_rtx_head, indent 2, "");`
392
393			`fputs ("]", outfile);`
394			`sawclose = 1;`
395			`indent -= 2;`
396			`break;`
397
398			`case 'w':`
399			`if (! flag_simple)`
400			`fprintf (outfile, " ");`
401			`fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));`
402			`if (! flag_simple)`
403			`fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",`
404			`XWINT (in_rtx, i));`
405			`break;`
406
407			`case 'i':`
408			`if (i == 4 && INSN_P (in_rtx))`
409			`{`
410			`#ifndef GENERATOR_FILE`
411			`/* Pretty-print insn locators. Ignore scoping as it is mostly`
412			`redundant with line number information and do not print anything`
413			`when there is no location information available. */`
414			`if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))`
415			`fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));`
416			`#endif`
417			`}`
418			`else if (i == 6 && NOTE_P (in_rtx))`
419			`{`
420			`/* This field is only used for NOTE_INSN_DELETED_LABEL, and`
421			`other times often contains garbage from INSN->NOTE death. */`
422			`if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)`
423			`fprintf (outfile, " %d", XINT (in_rtx, i));`
424			`}`
425			`else`
426			`{`
427			`int value = XINT (in_rtx, i);`
428			`const char *name;`
429
430			`#ifndef GENERATOR_FILE`
431			`if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)`
432			`fprintf (outfile, " %d %s", REGNO (in_rtx),`
433			`reg_names[REGNO (in_rtx)]);`
434			`else if (REG_P (in_rtx)`
435			`&& value <= LAST_VIRTUAL_REGISTER)`
436			`{`
437			`if (value == VIRTUAL_INCOMING_ARGS_REGNUM)`
438			`fprintf (outfile, " %d virtual-incoming-args", value);`
439			`else if (value == VIRTUAL_STACK_VARS_REGNUM)`
440			`fprintf (outfile, " %d virtual-stack-vars", value);`
441			`else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)`
442			`fprintf (outfile, " %d virtual-stack-dynamic", value);`
443			`else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)`
444			`fprintf (outfile, " %d virtual-outgoing-args", value);`
445			`else if (value == VIRTUAL_CFA_REGNUM)`
446			`fprintf (outfile, " %d virtual-cfa", value);`
447			`else`
448			`fprintf (outfile, " %d virtual-reg-%d", value,`
449			`value-FIRST_VIRTUAL_REGISTER);`
450			`}`
451			`else`
452			`#endif`
453			`if (flag_dump_unnumbered`
454			`&& (is_insn \|\| NOTE_P (in_rtx)))`
455			`fputc ('#', outfile);`
456			`else`
457			`fprintf (outfile, " %d", value);`
458
459			`#ifndef GENERATOR_FILE`
460			`if (REG_P (in_rtx) && REG_ATTRS (in_rtx))`
461			`{`
462			`fputs (" [", outfile);`
463			`if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))`
464			`fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));`
465			`if (REG_EXPR (in_rtx))`
466			`print_mem_expr (outfile, REG_EXPR (in_rtx));`
467
468			`if (REG_OFFSET (in_rtx))`
469			`fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,`
470			`REG_OFFSET (in_rtx));`
471			`fputs (" ]", outfile);`
472			`}`
473			`#endif`
474
475			`if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)`
476			`&& XINT (in_rtx, i) >= 0`
477			`&& (name = get_insn_name (XINT (in_rtx, i))) != NULL)`
478			`fprintf (outfile, " {%s}", name);`
479			`sawclose = 0;`
480			`}`
481			`break;`
482
483			`/* Print NOTE_INSN names rather than integer codes. */`
484
485			`case 'n':`
486			`if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS`
487			`&& XINT (in_rtx, i) < (int) NOTE_INSN_MAX)`
488			`fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));`
489			`else`
490			`fprintf (outfile, " %d", XINT (in_rtx, i));`
491			`sawclose = 0;`
492			`break;`
493
494			`case 'u':`
495			`if (XEXP (in_rtx, i) != NULL)`
496			`{`
497			`rtx sub = XEXP (in_rtx, i);`
498			`enum rtx_code subc = GET_CODE (sub);`
499
500			`if (GET_CODE (in_rtx) == LABEL_REF)`
501			`{`
502			`if (subc == NOTE`
503			`&& NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)`
504			`{`
505			`if (flag_dump_unnumbered)`
506			`fprintf (outfile, " [# deleted]");`
507			`else`
508			`fprintf (outfile, " [%d deleted]", INSN_UID (sub));`
509			`sawclose = 0;`
510			`break;`
511			`}`
512
513			`if (subc != CODE_LABEL)`
514			`goto do_e;`
515			`}`
516
517			`if (flag_dump_unnumbered)`
518			`fputs (" #", outfile);`
519			`else`
520			`fprintf (outfile, " %d", INSN_UID (sub));`
521			`}`
522			`else`
523			`fputs (" 0", outfile);`
524			`sawclose = 0;`
525			`break;`
526
527			`case 'b':`
528			`#ifndef GENERATOR_FILE`
529			`if (XBITMAP (in_rtx, i) == NULL)`
530			`fputs (" {null}", outfile);`
531			`else`
532			`bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");`
533			`#endif`
534			`sawclose = 0;`
535			`break;`
536
537			`case 't':`
538			`#ifndef GENERATOR_FILE`
539			`dump_addr (outfile, " ", XTREE (in_rtx, i));`
540			`#endif`
541			`break;`
542
543			`case '*':`
544			`fputs (" Unknown", outfile);`
545			`sawclose = 0;`
546			`break;`
547
548			`case 'B':`
549			`#ifndef GENERATOR_FILE`
550			`if (XBBDEF (in_rtx, i))`
551			`fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);`
552			`#endif`
553			`break;`
554
555			`default:`
556			`gcc_unreachable ();`
557			`}`
558
559			`switch (GET_CODE (in_rtx))`
560			`{`
561			`#ifndef GENERATOR_FILE`
562			`case MEM:`
563			`fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));`
564
565			`if (MEM_EXPR (in_rtx))`
566			`print_mem_expr (outfile, MEM_EXPR (in_rtx));`
567
568			`if (MEM_OFFSET (in_rtx))`
569			`fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,`
570			`INTVAL (MEM_OFFSET (in_rtx)));`
571
572			`if (MEM_SIZE (in_rtx))`
573			`fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,`
574			`INTVAL (MEM_SIZE (in_rtx)));`
575
576			`if (MEM_ALIGN (in_rtx) != 1)`
577			`fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));`
578
579			`fputc (']', outfile);`
580			`break;`
581
582			`case CONST_DOUBLE:`
583			`if (FLOAT_MODE_P (GET_MODE (in_rtx)))`
584			`{`
585			`char s[60];`
586
587			`real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),`
588			`sizeof (s), 0, 1);`
589			`fprintf (outfile, " %s", s);`
590
591			`real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),`
592			`sizeof (s), 0, 1);`
593			`fprintf (outfile, " [%s]", s);`
594			`}`
595			`break;`
596			`#endif`
597
598			`case CODE_LABEL:`
599			`fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));`
600			`switch (LABEL_KIND (in_rtx))`
601			`{`
602			`case LABEL_NORMAL: break;`
603			`case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;`
604			`case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;`
605			`case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;`
606			`default: gcc_unreachable ();`
607			`}`
608			`break;`
609
610			`default:`
611			`break;`
612			`}`
613
614			`if (dump_for_graph`
615			`&& (is_insn \|\| NOTE_P (in_rtx)`
616			`\|\| LABEL_P (in_rtx) \|\| BARRIER_P (in_rtx)))`
617			`sawclose = 0;`
618			`else`
619			`{`
620			`fputc (')', outfile);`
621			`sawclose = 1;`
622			`}`
623			`}`
624
625			`/* Print an rtx on the current line of FILE. Initially indent IND`
626			`characters. */`
627
628			`void`
629			`print_inline_rtx (FILE *outf, rtx x, int ind)`
630			`{`
631			`int oldsaw = sawclose;`
632			`int oldindent = indent;`
633
634			`sawclose = 0;`
635			`indent = ind;`
636			`outfile = outf;`
637			`print_rtx (x);`
638			`sawclose = oldsaw;`
639			`indent = oldindent;`
640			`}`
641
642			`/* Call this function from the debugger to see what X looks like. */`
643
644			`void`
645			`debug_rtx (rtx x)`
646			`{`
647			`outfile = stderr;`
648			`sawclose = 0;`
649			`print_rtx (x);`
650			`fprintf (stderr, "\n");`
651			`}`
652
653			`/* Count of rtx's to print with debug_rtx_list.`
654			`This global exists because gdb user defined commands have no arguments. */`
655
656			`int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */`
657
658			`/* Call this function to print list from X on.`
659
660			`N is a count of the rtx's to print. Positive values print from the specified`
661			`rtx on. Negative values print a window around the rtx.`
662			`EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */`
663
664			`void`
665			`debug_rtx_list (rtx x, int n)`
666			`{`
667			`int i,count;`
668			`rtx insn;`
669
670			`count = n == 0 ? 1 : n < 0 ? -n : n;`
671
672			`/* If we are printing a window, back up to the start. */`
673
674			`if (n < 0)`
675			`for (i = count / 2; i > 0; i--)`
676			`{`
677			`if (PREV_INSN (x) == 0)`
678			`break;`
679			`x = PREV_INSN (x);`
680			`}`
681
682			`for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))`
683			`{`
684			`debug_rtx (insn);`
685			`fprintf (stderr, "\n");`
686			`}`
687			`}`
688
689			`/* Call this function to print an rtx list from START to END inclusive. */`
690
691			`void`
692			`debug_rtx_range (rtx start, rtx end)`
693			`{`
694			`while (1)`
695			`{`
696			`debug_rtx (start);`
697			`fprintf (stderr, "\n");`
698			`if (!start \|\| start == end)`
699			`break;`
700			`start = NEXT_INSN (start);`
701			`}`
702			`}`
703
704			`/* Call this function to search an rtx list to find one with insn uid UID,`
705			`and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.`
706			`The found insn is returned to enable further debugging analysis. */`
707
708			`rtx`
709			`debug_rtx_find (rtx x, int uid)`
710			`{`
711			`while (x != 0 && INSN_UID (x) != uid)`
712			`x = NEXT_INSN (x);`
713			`if (x != 0)`
714			`{`
715			`debug_rtx_list (x, debug_rtx_count);`
716			`return x;`
717			`}`
718			`else`
719			`{`
720			`fprintf (stderr, "insn uid %d not found\n", uid);`
721			`return 0;`
722			`}`
723			`}`
724
725			`/* External entry point for printing a chain of insns`
726			`starting with RTX_FIRST onto file OUTF.`
727			`A blank line separates insns.`
728
729			`If RTX_FIRST is not an insn, then it alone is printed, with no newline. */`
730
731			`void`
732			`print_rtl (FILE *outf, rtx rtx_first)`
733			`{`
734			`rtx tmp_rtx;`
735
736			`outfile = outf;`
737			`sawclose = 0;`
738
739			`if (rtx_first == 0)`
740			`{`
741			`fputs (print_rtx_head, outf);`
742			`fputs ("(nil)\n", outf);`
743			`}`
744			`else`
745			`switch (GET_CODE (rtx_first))`
746			`{`
747			`case INSN:`
748			`case JUMP_INSN:`
749			`case CALL_INSN:`
750			`case NOTE:`
751			`case CODE_LABEL:`
752			`case BARRIER:`
753			`for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))`
754			`if (! flag_dump_unnumbered`
755			`\|\| !NOTE_P (tmp_rtx) \|\| NOTE_LINE_NUMBER (tmp_rtx) < 0)`
756			`{`
757			`fputs (print_rtx_head, outfile);`
758			`print_rtx (tmp_rtx);`
759			`fprintf (outfile, "\n");`
760			`}`
761			`break;`
762
763			`default:`
764			`fputs (print_rtx_head, outfile);`
765			`print_rtx (rtx_first);`
766			`}`
767			`}`
768
769			`/* Like print_rtx, except specify a file. */`
770			`/* Return nonzero if we actually printed anything. */`
771
772			`int`
773			`print_rtl_single (FILE *outf, rtx x)`
774			`{`
775			`outfile = outf;`
776			`sawclose = 0;`
777			`if (! flag_dump_unnumbered`
778			`\|\| !NOTE_P (x) \|\| NOTE_LINE_NUMBER (x) < 0)`
779			`{`
780			`fputs (print_rtx_head, outfile);`
781			`print_rtx (x);`
782			`putc ('\n', outf);`
783			`return 1;`
784			`}`
785			`return 0;`
786			`}`
787
788
789			`/* Like print_rtl except without all the detail; for example,`
790			`if RTX is a CONST_INT then print in decimal format. */`
791
792			`void`
793			`print_simple_rtl (FILE *outf, rtx x)`
794			`{`
795			`flag_simple = 1;`
796			`print_rtl (outf, x);`
797			`flag_simple = 0;`
798			`}`