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gcc.gnu.org Git - gcc.git/blob - gcc/print-rtl.c
1 /* Print RTL for GNU C Compiler.
2 Copyright (C) 1987, 1991 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
31 static int sawclose
= 0;
33 /* Names for patterns. Non-zero only when linked with insn-output.c. */
35 extern char **insn_name_ptr
;
37 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
45 register char *format_ptr
;
50 fprintf (outfile
, "\n%s",
51 (spaces
+ (sizeof spaces
- indent
* 2)));
57 fprintf (outfile
, "(nil)");
62 /* print name of expression code */
63 fprintf (outfile
, "(%s", GET_RTX_NAME (GET_CODE (in_rtx
)));
65 if (in_rtx
->in_struct
)
66 fprintf (outfile
, "/s");
69 fprintf (outfile
, "/v");
71 if (in_rtx
->unchanging
)
72 fprintf (outfile
, "/u");
74 if (in_rtx
->integrated
)
75 fprintf (outfile
, "/i");
77 if (GET_MODE (in_rtx
) != VOIDmode
)
79 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
80 if (GET_CODE (in_rtx
) == EXPR_LIST
|| GET_CODE (in_rtx
) == INSN_LIST
)
81 fprintf (outfile
, ":%s", GET_REG_NOTE_NAME (GET_MODE (in_rtx
)));
83 fprintf (outfile
, ":%s", GET_MODE_NAME (GET_MODE (in_rtx
)));
86 is_insn
= (GET_RTX_CLASS (GET_CODE (in_rtx
)) == 'i');
87 format_ptr
= GET_RTX_FORMAT (GET_CODE (in_rtx
));
89 for (i
= 0; i
< GET_RTX_LENGTH (GET_CODE (in_rtx
)); i
++)
90 switch (*format_ptr
++)
94 if (XSTR (in_rtx
, i
) == 0)
95 fprintf (outfile
, " \"\"");
97 fprintf (outfile
, " (\"%s\")", XSTR (in_rtx
, i
));
101 /* 0 indicates a field for internal use that should not be printed. */
108 fprintf (outfile
, " ");
109 print_rtx (XEXP (in_rtx
, i
));
118 fprintf (outfile
, "\n%s",
119 (spaces
+ (sizeof spaces
- indent
* 2)));
122 fprintf (outfile
, "[ ");
123 if (NULL
!= XVEC (in_rtx
, i
))
126 if (XVECLEN (in_rtx
, i
))
129 for (j
= 0; j
< XVECLEN (in_rtx
, i
); j
++)
130 print_rtx (XVECEXP (in_rtx
, i
, j
));
135 fprintf (outfile
, "\n%s",
136 (spaces
+ (sizeof spaces
- indent
* 2)));
138 fprintf (outfile
, "] ");
144 fprintf (outfile
, " %d", XINT (in_rtx
, i
));
145 if (is_insn
&& &INSN_CODE (in_rtx
) == &XINT (in_rtx
, i
)
147 && XINT (in_rtx
, i
) >= 0)
148 fprintf (outfile
, " {%s}", insn_name_ptr
[XINT (in_rtx
, i
)]);
152 /* Print NOTE_INSN names rather than integer codes. */
155 if (XINT (in_rtx
, i
) <= 0)
156 fprintf (outfile
, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx
, i
)));
158 fprintf (outfile
, " %d", XINT (in_rtx
, i
));
163 if (XEXP (in_rtx
, i
) != NULL
)
164 fprintf(outfile
, " %d", INSN_UID (XEXP (in_rtx
, i
)));
166 fprintf(outfile
, " 0");
172 "switch format wrong in rtl.print_rtx(). format was: %c.\n",
177 fprintf (outfile
, ")");
181 /* Call this function from the debugger to see what X looks like. */
189 fprintf (stderr
, "\n");
192 /* External entry point for printing a chain of insns
193 starting with RTX_FIRST onto file OUTF.
194 A blank line separates insns.
196 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
199 print_rtl (outf
, rtx_first
)
203 register rtx tmp_rtx
;
209 fprintf (outf
, "(nil)\n");
211 switch (GET_CODE (rtx_first
))
219 for (tmp_rtx
= rtx_first
; NULL
!= tmp_rtx
; tmp_rtx
= NEXT_INSN (tmp_rtx
))
222 fprintf (outfile
, "\n");
227 print_rtx (rtx_first
);
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