[thirdparty/gcc.git] / gcc / print-rtl.c

/* Print RTL for GNU C Compiler.
   Copyright (C) 1987, 1988, 1992, 1997 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC 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 2, or (at your option)
any later version.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */


#include "config.h"
#include "system.h"
#include "rtl.h"
#include "bitmap.h"


/* How to print out a register name.
   We don't use PRINT_REG because some definitions of PRINT_REG
   don't work here.  */
#ifndef DEBUG_PRINT_REG
#define DEBUG_PRINT_REG(RTX, CODE, FILE) \
  fprintf ((FILE), "%d %s", REGNO (RTX), reg_names[REGNO (RTX)])
#endif

/* Array containing all of the register names */

#ifdef DEBUG_REGISTER_NAMES
static char *reg_names[] = DEBUG_REGISTER_NAMES;
#else
static char *reg_names[] = REGISTER_NAMES;
#endif

static FILE *outfile;

char spaces[] = "                                                                                                                                                                ";

static int sawclose = 0;

static int indent;

/* Names for patterns.  Non-zero only when linked with insn-output.c.  */

extern char **insn_name_ptr;

/* Print IN_RTX onto OUTFILE.  This is the recursive part of printing.  */

static void
print_rtx (in_rtx)
     register rtx in_rtx;
{
  register int i, j;
  register char *format_ptr;
  register int is_insn;

  if (sawclose)
    {
      fprintf (outfile, "\n%s",
	       (spaces + (sizeof spaces - 1 - indent * 2)));
      sawclose = 0;
    }

  if (in_rtx == 0)
    {
      fprintf (outfile, "(nil)");
      sawclose = 1;
      return;
    }

  /* print name of expression code */
  fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));

  if (in_rtx->in_struct)
    fprintf (outfile, "/s");

  if (in_rtx->volatil)
    fprintf (outfile, "/v");

  if (in_rtx->unchanging)
    fprintf (outfile, "/u");

  if (in_rtx->integrated)
    fprintf (outfile, "/i");

  if (GET_MODE (in_rtx) != VOIDmode)
    {
      /* 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)));
      else
	fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
    }

  is_insn = (GET_RTX_CLASS (GET_CODE (in_rtx)) == 'i');
  format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));

  for (i = 0; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
    switch (*format_ptr++)
      {
      case 'S':
      case 's':
	if (i == 3 && GET_CODE (in_rtx) == NOTE
	    && (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_BEG
		|| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_END
		|| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_BEG
		|| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_END))
	  {
	    fprintf (outfile, " %d", NOTE_BLOCK_NUMBER (in_rtx));
	    sawclose = 1;
	    break;
	  }

	if (i == 3 && GET_CODE (in_rtx) == NOTE
	    && (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_START
		|| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_END))
	  {
	    indent += 2;
	    if (!sawclose)
	      fprintf (outfile, " ");
	    print_rtx (NOTE_RANGE_INFO (in_rtx));
	    indent -= 2;
	    break;
	  }

	if (i == 3 && GET_CODE (in_rtx) == NOTE
	    && NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_LIVE)
	  {
	    if (XBITMAP (in_rtx, i) == NULL)
	      fprintf (outfile, " {null}");
	    else
	      bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
	    sawclose = 0;
	  }

	if (XSTR (in_rtx, i) == 0)
	  fprintf (outfile, " \"\"");
	else
	  fprintf (outfile, " (\"%s\")", XSTR (in_rtx, i));
	sawclose = 1;
	break;

	/* 0 indicates a field for internal use that should not be printed.  */
      case '0':
	break;

      case '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",
		     (spaces + (sizeof spaces - 1 - indent * 2)));
	    sawclose = 0;
	  }
	fprintf (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",
		   (spaces + (sizeof spaces - 1 - indent * 2)));

	fprintf (outfile, "] ");
	sawclose = 1;
	indent -= 2;
	break;

      case 'w':
	fprintf (outfile, " ");
	fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
	break;

      case 'i':
	{
	  register int value = XINT (in_rtx, i);

	  if (GET_CODE (in_rtx) == REG && value < FIRST_PSEUDO_REGISTER)
	    {
	      fputc (' ', outfile);
	      DEBUG_PRINT_REG (in_rtx, 0, outfile);
	    }
	  else
	    fprintf (outfile, " %d", value);
	}
	if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
	    && insn_name_ptr
	    && XINT (in_rtx, i) >= 0)
	  fprintf (outfile, " {%s}", insn_name_ptr[XINT (in_rtx, i)]);
	sawclose = 0;
	break;

      /* Print NOTE_INSN names rather than integer codes.  */

      case 'n':
	if (XINT (in_rtx, i) <= 0)
	  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)
	  fprintf (outfile, " %d", INSN_UID (XEXP (in_rtx, i)));
	else
	  fprintf (outfile, " 0");
	sawclose = 0;
	break;

      case 'b':
	if (XBITMAP (in_rtx, i) == NULL)
	  fprintf (outfile, " {null}");
	else
	  bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
	sawclose = 0;
	break;

      case 't':
	putc (' ', outfile);
	fprintf (outfile, HOST_WIDE_INT_PRINT_HEX,
		 (HOST_WIDE_INT) XTREE (in_rtx, i));
	break;

      case '*':
	fprintf (outfile, " Unknown");
	sawclose = 0;
	break;

      default:
	fprintf (stderr,
		 "switch format wrong in rtl.print_rtx(). format was: %c.\n",
		 format_ptr[-1]);
	abort ();
      }

  fprintf (outfile, ")");
  sawclose = 1;
}

/* Print an rtx on the current line of FILE.  Initially indent IND
   characters.  */

void
print_inline_rtx (outf, x, ind)
     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 (x)
     rtx x;
{
  outfile = stderr;
  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 (x, n)
     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);
}

/* 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 (x, uid)
     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 (outf, rtx_first)
     FILE *outf;
     rtx rtx_first;
{
  register rtx tmp_rtx;

  outfile = outf;
  sawclose = 0;

  if (rtx_first == 0)
    fprintf (outf, "(nil)\n");
  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; NULL != tmp_rtx; tmp_rtx = NEXT_INSN (tmp_rtx))
	  {
	    print_rtx (tmp_rtx);
	    fprintf (outfile, "\n");
	  }
	break;

      default:
	print_rtx (rtx_first);
      }
}

/* Like print_rtx, except specify a file.  */

void
print_rtl_single (outf, x)
     FILE *outf;
     rtx x;
{
  outfile = outf;
  sawclose = 0;
  print_rtx (x);
  putc ('\n', outf);
}
Commit	Line	Data
e1a79915	1	/* Print RTL for GNU C Compiler.
1d79197a	2	Copyright (C) 1987, 1988, 1992, 1997 Free Software Foundation, Inc.
e1a79915 RS	3
	4	This file is part of GNU CC.
	5
	6	GNU CC is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2, or (at your option)
	9	any later version.
	10
	11	GNU CC is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GNU CC; see the file COPYING. If not, write to
e99215a3 RK	18	the Free Software Foundation, 59 Temple Place - Suite 330,
e99215a3 RK	19	Boston, MA 02111-1307, USA. */
e1a79915 RS	20
	21
	22	#include "config.h"
670ee920	23	#include "system.h"
e1a79915	24	#include "rtl.h"
487a6e06	25	#include "bitmap.h"
e1a79915 RS	26
e1a79915 RS	27
cf99a734 RS	28	/* How to print out a register name.
	29	We don't use PRINT_REG because some definitions of PRINT_REG
	30	don't work here. */
	31	#ifndef DEBUG_PRINT_REG
	32	#define DEBUG_PRINT_REG(RTX, CODE, FILE) \
	33	fprintf ((FILE), "%d %s", REGNO (RTX), reg_names[REGNO (RTX)])
	34	#endif
	35
	36	/* Array containing all of the register names */
	37
	38	#ifdef DEBUG_REGISTER_NAMES
	39	static char *reg_names[] = DEBUG_REGISTER_NAMES;
	40	#else
	41	static char *reg_names[] = REGISTER_NAMES;
	42	#endif
	43
e1a79915 RS	44	static FILE *outfile;
	45
	46	char spaces[] = " ";
	47
	48	static int sawclose = 0;
	49
1d79197a RK	50	static int indent;
1d79197a RK	51
e1a79915 RS	52	/* Names for patterns. Non-zero only when linked with insn-output.c. */
	53
	54	extern char **insn_name_ptr;
	55
	56	/* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
	57
	58	static void
	59	print_rtx (in_rtx)
	60	register rtx in_rtx;
	61	{
e1a79915 RS	62	register int i, j;
	63	register char *format_ptr;
	64	register int is_insn;
	65
	66	if (sawclose)
	67	{
	68	fprintf (outfile, "\n%s",
bcd4420d	69	(spaces + (sizeof spaces - 1 - indent * 2)));
e1a79915 RS	70	sawclose = 0;
	71	}
	72
	73	if (in_rtx == 0)
	74	{
	75	fprintf (outfile, "(nil)");
	76	sawclose = 1;
	77	return;
	78	}
	79
	80	/* print name of expression code */
	81	fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
	82
	83	if (in_rtx->in_struct)
	84	fprintf (outfile, "/s");
	85
	86	if (in_rtx->volatil)
	87	fprintf (outfile, "/v");
	88
	89	if (in_rtx->unchanging)
	90	fprintf (outfile, "/u");
	91
	92	if (in_rtx->integrated)
	93	fprintf (outfile, "/i");
	94
	95	if (GET_MODE (in_rtx) != VOIDmode)
	96	{
	97	/* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
	98	if (GET_CODE (in_rtx) == EXPR_LIST \|\| GET_CODE (in_rtx) == INSN_LIST)
	99	fprintf (outfile, ":%s", GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
	100	else
	101	fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
	102	}
	103
	104	is_insn = (GET_RTX_CLASS (GET_CODE (in_rtx)) == 'i');
	105	format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));
	106
	107	for (i = 0; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
	108	switch (*format_ptr++)
	109	{
	110	case 'S':
	111	case 's':
6adb4e3a MS	112	if (i == 3 && GET_CODE (in_rtx) == NOTE
6adb4e3a MS	113	&& (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_BEG
0dfa1860 MM	114	\|\| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_END
	115	\|\| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_BEG
	116	\|\| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_END))
6adb4e3a MS	117	{
	118	fprintf (outfile, " %d", NOTE_BLOCK_NUMBER (in_rtx));
	119	sawclose = 1;
	120	break;
	121	}
0dfa1860 MM	122
	123	if (i == 3 && GET_CODE (in_rtx) == NOTE
	124	&& (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_START
	125	\|\| NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_END))
	126	{
	127	indent += 2;
	128	if (!sawclose)
	129	fprintf (outfile, " ");
	130	print_rtx (NOTE_RANGE_INFO (in_rtx));
	131	indent -= 2;
	132	break;
	133	}
	134
	135	if (i == 3 && GET_CODE (in_rtx) == NOTE
	136	&& NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_LIVE)
	137	{
	138	if (XBITMAP (in_rtx, i) == NULL)
	139	fprintf (outfile, " {null}");
	140	else
	141	bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
	142	sawclose = 0;
	143	}
	144
e1a79915 RS	145	if (XSTR (in_rtx, i) == 0)
	146	fprintf (outfile, " \"\"");
	147	else
	148	fprintf (outfile, " (\"%s\")", XSTR (in_rtx, i));
	149	sawclose = 1;
	150	break;
	151
	152	/* 0 indicates a field for internal use that should not be printed. */
	153	case '0':
	154	break;
	155
	156	case 'e':
	157	indent += 2;
	158	if (!sawclose)
	159	fprintf (outfile, " ");
	160	print_rtx (XEXP (in_rtx, i));
	161	indent -= 2;
	162	break;
	163
	164	case 'E':
	165	case 'V':
	166	indent += 2;
	167	if (sawclose)
	168	{
	169	fprintf (outfile, "\n%s",
bcd4420d	170	(spaces + (sizeof spaces - 1 - indent * 2)));
e1a79915 RS	171	sawclose = 0;
	172	}
	173	fprintf (outfile, "[ ");
	174	if (NULL != XVEC (in_rtx, i))
	175	{
	176	indent += 2;
	177	if (XVECLEN (in_rtx, i))
	178	sawclose = 1;
	179
	180	for (j = 0; j < XVECLEN (in_rtx, i); j++)
	181	print_rtx (XVECEXP (in_rtx, i, j));
	182
	183	indent -= 2;
	184	}
	185	if (sawclose)
	186	fprintf (outfile, "\n%s",
bcd4420d	187	(spaces + (sizeof spaces - 1 - indent * 2)));
e1a79915 RS	188
	189	fprintf (outfile, "] ");
	190	sawclose = 1;
	191	indent -= 2;
	192	break;
	193
5bf665df	194	case 'w':
734de8c8 RK	195	fprintf (outfile, " ");
734de8c8 RK	196	fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
5bf665df RK	197	break;
5bf665df RK	198
e1a79915	199	case 'i':
cf99a734 RS	200	{
	201	register int value = XINT (in_rtx, i);
	202
	203	if (GET_CODE (in_rtx) == REG && value < FIRST_PSEUDO_REGISTER)
	204	{
	205	fputc (' ', outfile);
	206	DEBUG_PRINT_REG (in_rtx, 0, outfile);
	207	}
	208	else
	209	fprintf (outfile, " %d", value);
	210	}
e1a79915 RS	211	if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
	212	&& insn_name_ptr
	213	&& XINT (in_rtx, i) >= 0)
cf99a734	214	fprintf (outfile, " {%s}", insn_name_ptr[XINT (in_rtx, i)]);
e1a79915 RS	215	sawclose = 0;
	216	break;
	217
	218	/* Print NOTE_INSN names rather than integer codes. */
	219
	220	case 'n':
	221	if (XINT (in_rtx, i) <= 0)
	222	fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
	223	else
	224	fprintf (outfile, " %d", XINT (in_rtx, i));
	225	sawclose = 0;
	226	break;
	227
	228	case 'u':
	229	if (XEXP (in_rtx, i) != NULL)
d64be5ec	230	fprintf (outfile, " %d", INSN_UID (XEXP (in_rtx, i)));
e1a79915	231	else
d64be5ec CH	232	fprintf (outfile, " 0");
	233	sawclose = 0;
	234	break;
	235
0dfa1860 MM	236	case 'b':
	237	if (XBITMAP (in_rtx, i) == NULL)
	238	fprintf (outfile, " {null}");
	239	else
	240	bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
	241	sawclose = 0;
	242	break;
	243
	244	case 't':
	245	putc (' ', outfile);
	246	fprintf (outfile, HOST_WIDE_INT_PRINT_HEX,
	247	(HOST_WIDE_INT) XTREE (in_rtx, i));
	248	break;
	249
d64be5ec CH	250	case '*':
d64be5ec CH	251	fprintf (outfile, " Unknown");
e1a79915 RS	252	sawclose = 0;
	253	break;
	254
	255	default:
	256	fprintf (stderr,
	257	"switch format wrong in rtl.print_rtx(). format was: %c.\n",
	258	format_ptr[-1]);
	259	abort ();
	260	}
	261
	262	fprintf (outfile, ")");
	263	sawclose = 1;
	264	}
	265
1d79197a RK	266	/* Print an rtx on the current line of FILE. Initially indent IND
	267	characters. */
	268
	269	void
	270	print_inline_rtx (outf, x, ind)
	271	FILE *outf;
	272	rtx x;
9870475c	273	int ind;
1d79197a	274	{
956d6950 JL	275	int oldsaw = sawclose;
	276	int oldindent = indent;
	277
1d79197a RK	278	sawclose = 0;
	279	indent = ind;
	280	outfile = outf;
	281	print_rtx (x);
956d6950 JL	282	sawclose = oldsaw;
956d6950 JL	283	indent = oldindent;
1d79197a RK	284	}
1d79197a RK	285
e1a79915 RS	286	/* Call this function from the debugger to see what X looks like. */
	287
	288	void
	289	debug_rtx (x)
	290	rtx x;
	291	{
	292	outfile = stderr;
	293	print_rtx (x);
	294	fprintf (stderr, "\n");
	295	}
	296
716f003f DE	297	/* Count of rtx's to print with debug_rtx_list.
	298	This global exists because gdb user defined commands have no arguments. */
	299
	300	int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
	301
	302	/* Call this function to print list from X on.
	303
	304	N is a count of the rtx's to print. Positive values print from the specified
	305	rtx on. Negative values print a window around the rtx.
	306	EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
	307
	308	void
	309	debug_rtx_list (x, n)
	310	rtx x;
	311	int n;
	312	{
	313	int i,count;
	314	rtx insn;
	315
	316	count = n == 0 ? 1 : n < 0 ? -n : n;
	317
	318	/* If we are printing a window, back up to the start. */
	319
	320	if (n < 0)
	321	for (i = count / 2; i > 0; i--)
	322	{
	323	if (PREV_INSN (x) == 0)
	324	break;
	325	x = PREV_INSN (x);
	326	}
	327
	328	for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
	329	debug_rtx (insn);
	330	}
	331
	332	/* Call this function to search an rtx list to find one with insn uid UID,
	333	and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
	334	The found insn is returned to enable further debugging analysis. */
	335
	336	rtx
1d79197a	337	debug_rtx_find (x, uid)
716f003f DE	338	rtx x;
	339	int uid;
	340	{
	341	while (x != 0 && INSN_UID (x) != uid)
	342	x = NEXT_INSN (x);
	343	if (x != 0)
	344	{
	345	debug_rtx_list (x, debug_rtx_count);
	346	return x;
	347	}
	348	else
	349	{
	350	fprintf (stderr, "insn uid %d not found\n", uid);
	351	return 0;
	352	}
	353	}
	354
e1a79915 RS	355	/* External entry point for printing a chain of insns
	356	starting with RTX_FIRST onto file OUTF.
	357	A blank line separates insns.
	358
	359	If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
	360
	361	void
	362	print_rtl (outf, rtx_first)
	363	FILE *outf;
	364	rtx rtx_first;
	365	{
	366	register rtx tmp_rtx;
	367
	368	outfile = outf;
	369	sawclose = 0;
	370
	371	if (rtx_first == 0)
	372	fprintf (outf, "(nil)\n");
	373	else
	374	switch (GET_CODE (rtx_first))
	375	{
	376	case INSN:
	377	case JUMP_INSN:
	378	case CALL_INSN:
	379	case NOTE:
	380	case CODE_LABEL:
	381	case BARRIER:
	382	for (tmp_rtx = rtx_first; NULL != tmp_rtx; tmp_rtx = NEXT_INSN (tmp_rtx))
	383	{
	384	print_rtx (tmp_rtx);
	385	fprintf (outfile, "\n");
	386	}
	387	break;
	388
	389	default:
	390	print_rtx (rtx_first);
	391	}
	392	}
3e28fe44 MM	393
	394	/* Like print_rtx, except specify a file. */
	395
	396	void
	397	print_rtl_single (outf, x)
	398	FILE *outf;
	399	rtx x;
	400	{
	401	outfile = outf;
	402	sawclose = 0;
	403	print_rtx (x);
	404	putc ('\n', outf);
	405	}