1 /* Print RTL for GNU C Compiler.
2 Copyright (C) 1987, 1988, 1992, 1997 Free Software Foundation, Inc.
4 This file is part of GNU CC.
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)
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.
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
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
29 /* How to print out a register name.
30 We don't use PRINT_REG because some definitions of PRINT_REG
32 #ifndef DEBUG_PRINT_REG
33 #define DEBUG_PRINT_REG(RTX, CODE, FILE) \
34 fprintf ((FILE), "%d %s", REGNO (RTX), reg_names[REGNO (RTX)])
37 /* Array containing all of the register names */
39 #ifdef DEBUG_REGISTER_NAMES
40 static char *reg_names[] = DEBUG_REGISTER_NAMES;
42 static char *reg_names[] = REGISTER_NAMES;
49 static int sawclose = 0;
53 /* Names for patterns. Non-zero only when linked with insn-output.c. */
55 extern char **insn_name_ptr;
57 int flag_dump_unnumbered = 0;
58 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
65 register char *format_ptr;
70 fprintf (outfile, "\n%s",
71 (spaces + (sizeof spaces - 1 - indent * 2)));
77 fprintf (outfile, "(nil)");
82 /* print name of expression code */
83 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
85 if (in_rtx->in_struct)
86 fprintf (outfile, "/s");
89 fprintf (outfile, "/v");
91 if (in_rtx->unchanging)
92 fprintf (outfile, "/u");
94 if (in_rtx->integrated)
95 fprintf (outfile, "/i");
97 if (GET_MODE (in_rtx) != VOIDmode)
99 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
100 if (GET_CODE (in_rtx) == EXPR_LIST || GET_CODE (in_rtx) == INSN_LIST)
101 fprintf (outfile, ":%s", GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
103 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
106 is_insn = (GET_RTX_CLASS (GET_CODE (in_rtx)) == 'i');
107 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));
109 for (i = 0; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
110 switch (*format_ptr++)
114 if (i == 3 && GET_CODE (in_rtx) == NOTE
115 && (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_BEG
116 || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_END
117 || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_BEG
118 || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_END))
120 fprintf (outfile, " %d", NOTE_BLOCK_NUMBER (in_rtx));
125 if (i == 3 && GET_CODE (in_rtx) == NOTE
126 && (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_START
127 || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_END))
131 fprintf (outfile, " ");
132 print_rtx (NOTE_RANGE_INFO (in_rtx));
137 if (i == 3 && GET_CODE (in_rtx) == NOTE
138 && NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_LIVE)
140 if (XBITMAP (in_rtx, i) == NULL)
141 fprintf (outfile, " {null}");
143 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
147 if (XSTR (in_rtx, i) == 0)
148 fprintf (outfile, " \"\"");
150 fprintf (outfile, " (\"%s\")", XSTR (in_rtx, i));
154 /* 0 indicates a field for internal use that should not be printed. */
161 fprintf (outfile, " ");
162 print_rtx (XEXP (in_rtx, i));
171 fprintf (outfile, "\n%s",
172 (spaces + (sizeof spaces - 1 - indent * 2)));
175 fprintf (outfile, "[ ");
176 if (NULL != XVEC (in_rtx, i))
179 if (XVECLEN (in_rtx, i))
182 for (j = 0; j < XVECLEN (in_rtx, i); j++)
183 print_rtx (XVECEXP (in_rtx, i, j));
188 fprintf (outfile, "\n%s",
189 (spaces + (sizeof spaces - 1 - indent * 2)));
191 fprintf (outfile, "] ");
197 fprintf (outfile, " ");
198 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
203 register int value = XINT (in_rtx, i);
205 if (GET_CODE (in_rtx) == REG && value < FIRST_PSEUDO_REGISTER)
207 fputc (' ', outfile);
208 DEBUG_PRINT_REG (in_rtx, 0, outfile);
210 else if (flag_dump_unnumbered
211 && (is_insn || GET_CODE (in_rtx) == NOTE))
212 fprintf (outfile, "#");
214 fprintf (outfile, " %d", value);
216 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
218 && XINT (in_rtx, i) >= 0)
219 fprintf (outfile, " {%s}", insn_name_ptr[XINT (in_rtx, i)]);
223 /* Print NOTE_INSN names rather than integer codes. */
226 if (XINT (in_rtx, i) <= 0)
227 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
229 fprintf (outfile, " %d", XINT (in_rtx, i));
234 if (XEXP (in_rtx, i) != NULL)
236 if (flag_dump_unnumbered)
237 fprintf (outfile, "#");
239 fprintf (outfile, " %d", INSN_UID (XEXP (in_rtx, i)));
242 fprintf (outfile, " 0");
247 if (XBITMAP (in_rtx, i) == NULL)
248 fprintf (outfile, " {null}");
250 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
256 fprintf (outfile, HOST_WIDE_INT_PRINT_HEX,
257 (HOST_WIDE_INT) XTREE (in_rtx, i));
261 fprintf (outfile, " Unknown");
267 "switch format wrong in rtl.print_rtx(). format was: %c.\n",
272 #if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT && LONG_DOUBLE_TYPE_SIZE == 64
273 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
276 REAL_VALUE_FROM_CONST_DOUBLE (val, in_rtx);
277 fprintf (outfile, " [%.16g]", val);
281 fprintf (outfile, ")");
285 /* Print an rtx on the current line of FILE. Initially indent IND
289 print_inline_rtx (outf, x, ind)
294 int oldsaw = sawclose;
295 int oldindent = indent;
305 /* Call this function from the debugger to see what X looks like. */
313 fprintf (stderr, "\n");
316 /* Count of rtx's to print with debug_rtx_list.
317 This global exists because gdb user defined commands have no arguments. */
319 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
321 /* Call this function to print list from X on.
323 N is a count of the rtx's to print. Positive values print from the specified
324 rtx on. Negative values print a window around the rtx.
325 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
328 debug_rtx_list (x, n)
335 count = n == 0 ? 1 : n < 0 ? -n : n;
337 /* If we are printing a window, back up to the start. */
340 for (i = count / 2; i > 0; i--)
342 if (PREV_INSN (x) == 0)
347 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
351 /* Call this function to search an rtx list to find one with insn uid UID,
352 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
353 The found insn is returned to enable further debugging analysis. */
356 debug_rtx_find (x, uid)
360 while (x != 0 && INSN_UID (x) != uid)
364 debug_rtx_list (x, debug_rtx_count);
369 fprintf (stderr, "insn uid %d not found\n", uid);
374 /* External entry point for printing a chain of insns
375 starting with RTX_FIRST onto file OUTF.
376 A blank line separates insns.
378 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
381 print_rtl (outf, rtx_first)
385 register rtx tmp_rtx;
391 fprintf (outf, "(nil)\n");
393 switch (GET_CODE (rtx_first))
401 for (tmp_rtx = rtx_first; NULL != tmp_rtx; tmp_rtx = NEXT_INSN (tmp_rtx))
403 if (! flag_dump_unnumbered
404 || GET_CODE (tmp_rtx) != NOTE
405 || NOTE_LINE_NUMBER (tmp_rtx) < 0)
408 fprintf (outfile, "\n");
414 print_rtx (rtx_first);
418 /* Like print_rtx, except specify a file. */
421 print_rtl_single (outf, x)
427 if (! flag_dump_unnumbered
428 || GET_CODE (x) != NOTE || NOTE_LINE_NUMBER (x) < 0)