2 Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003,
3 2004, 2005, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of GCC.
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
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
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/>. */
22 /* This file is compiled twice: once for the generator programs,
23 once for the compiler. */
31 #include "coretypes.h"
35 /* These headers all define things which are not available in
36 generator programs. */
37 #ifndef GENERATOR_FILE
41 #include "hard-reg-set.h"
42 #include "basic-block.h"
43 #include "diagnostic.h"
48 static int sawclose
= 0;
52 static void print_rtx (const_rtx
);
54 /* String printed at beginning of each RTL when it is dumped.
55 This string is set to ASM_COMMENT_START when the RTL is dumped in
56 the assembly output file. */
57 const char *print_rtx_head
= "";
59 /* Nonzero means suppress output of instruction numbers
61 This must be defined here so that programs like gencodes can be linked. */
62 int flag_dump_unnumbered
= 0;
64 /* Nonzero means suppress output of instruction numbers for previous
65 and next insns in debugging dumps.
66 This must be defined here so that programs like gencodes can be linked. */
67 int flag_dump_unnumbered_links
= 0;
69 /* Nonzero means use simplified format without flags, modes, etc. */
72 /* Nonzero if we are dumping graphical description. */
75 #ifndef GENERATOR_FILE
77 print_mem_expr (FILE *outfile
, const_tree expr
)
80 print_generic_expr (outfile
, CONST_CAST_TREE (expr
), 0);
84 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
87 print_rtx (const_rtx in_rtx
)
91 const char *format_ptr
;
99 fprintf (outfile
, "\n%s%*s", print_rtx_head
, indent
* 2, "");
105 fputs ("(nil)", outfile
);
109 else if (GET_CODE (in_rtx
) > NUM_RTX_CODE
)
111 fprintf (outfile
, "(??? bad code %d\n)", GET_CODE (in_rtx
));
116 is_insn
= INSN_P (in_rtx
);
118 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
119 in separate nodes and therefore have to handle them special here. */
121 && (is_insn
|| NOTE_P (in_rtx
)
122 || LABEL_P (in_rtx
) || BARRIER_P (in_rtx
)))
129 /* Print name of expression code. */
130 if (flag_simple
&& CONST_INT_P (in_rtx
))
131 fputc ('(', outfile
);
133 fprintf (outfile
, "(%s", GET_RTX_NAME (GET_CODE (in_rtx
)));
137 if (RTX_FLAG (in_rtx
, in_struct
))
138 fputs ("/s", outfile
);
140 if (RTX_FLAG (in_rtx
, volatil
))
141 fputs ("/v", outfile
);
143 if (RTX_FLAG (in_rtx
, unchanging
))
144 fputs ("/u", outfile
);
146 if (RTX_FLAG (in_rtx
, frame_related
))
147 fputs ("/f", outfile
);
149 if (RTX_FLAG (in_rtx
, jump
))
150 fputs ("/j", outfile
);
152 if (RTX_FLAG (in_rtx
, call
))
153 fputs ("/c", outfile
);
155 if (RTX_FLAG (in_rtx
, return_val
))
156 fputs ("/i", outfile
);
158 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
159 if ((GET_CODE (in_rtx
) == EXPR_LIST
160 || GET_CODE (in_rtx
) == INSN_LIST
)
161 && (int)GET_MODE (in_rtx
) < REG_NOTE_MAX
)
162 fprintf (outfile
, ":%s",
163 GET_REG_NOTE_NAME (GET_MODE (in_rtx
)));
165 /* For other rtl, print the mode if it's not VOID. */
166 else if (GET_MODE (in_rtx
) != VOIDmode
)
167 fprintf (outfile
, ":%s", GET_MODE_NAME (GET_MODE (in_rtx
)));
171 #ifndef GENERATOR_FILE
172 if (GET_CODE (in_rtx
) == CONST_DOUBLE
&& FLOAT_MODE_P (GET_MODE (in_rtx
)))
176 /* Get the format string and skip the first elements if we have handled
178 format_ptr
= GET_RTX_FORMAT (GET_CODE (in_rtx
)) + i
;
179 for (; i
< GET_RTX_LENGTH (GET_CODE (in_rtx
)); i
++)
180 switch (*format_ptr
++)
185 str
= XTMPL (in_rtx
, i
);
190 str
= XSTR (in_rtx
, i
);
194 fputs (dump_for_graph
? " \\\"\\\"" : " \"\"", outfile
);
198 fprintf (outfile
, " (\\\"%s\\\")", str
);
200 fprintf (outfile
, " (\"%s\")", str
);
205 /* 0 indicates a field for internal use that should not be printed.
206 An exception is the third field of a NOTE, where it indicates
207 that the field has several different valid contents. */
209 if (i
== 1 && REG_P (in_rtx
))
211 if (REGNO (in_rtx
) != ORIGINAL_REGNO (in_rtx
))
212 fprintf (outfile
, " [%d]", ORIGINAL_REGNO (in_rtx
));
214 #ifndef GENERATOR_FILE
215 else if (i
== 1 && GET_CODE (in_rtx
) == SYMBOL_REF
)
217 int flags
= SYMBOL_REF_FLAGS (in_rtx
);
219 fprintf (outfile
, " [flags 0x%x]", flags
);
221 else if (i
== 2 && GET_CODE (in_rtx
) == SYMBOL_REF
)
223 tree decl
= SYMBOL_REF_DECL (in_rtx
);
225 print_node_brief (outfile
, "", decl
, 0);
228 else if (i
== 4 && NOTE_P (in_rtx
))
230 switch (NOTE_KIND (in_rtx
))
232 case NOTE_INSN_EH_REGION_BEG
:
233 case NOTE_INSN_EH_REGION_END
:
234 if (flag_dump_unnumbered
)
235 fprintf (outfile
, " #");
237 fprintf (outfile
, " %d", NOTE_EH_HANDLER (in_rtx
));
241 case NOTE_INSN_BLOCK_BEG
:
242 case NOTE_INSN_BLOCK_END
:
243 #ifndef GENERATOR_FILE
244 dump_addr (outfile
, " ", NOTE_BLOCK (in_rtx
));
249 case NOTE_INSN_BASIC_BLOCK
:
251 #ifndef GENERATOR_FILE
252 basic_block bb
= NOTE_BASIC_BLOCK (in_rtx
);
254 fprintf (outfile
, " [bb %d]", bb
->index
);
259 case NOTE_INSN_DELETED_LABEL
:
261 const char *label
= NOTE_DELETED_LABEL_NAME (in_rtx
);
263 fprintf (outfile
, " (\"%s\")", label
);
265 fprintf (outfile
, " \"\"");
269 case NOTE_INSN_SWITCH_TEXT_SECTIONS
:
271 #ifndef GENERATOR_FILE
272 basic_block bb
= NOTE_BASIC_BLOCK (in_rtx
);
274 fprintf (outfile
, " [bb %d]", bb
->index
);
279 case NOTE_INSN_VAR_LOCATION
:
280 #ifndef GENERATOR_FILE
281 fprintf (outfile
, " (");
282 print_mem_expr (outfile
, NOTE_VAR_LOCATION_DECL (in_rtx
));
283 fprintf (outfile
, " ");
284 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx
));
285 if (NOTE_VAR_LOCATION_STATUS (in_rtx
) ==
286 VAR_INIT_STATUS_UNINITIALIZED
)
287 fprintf (outfile
, " [uninit]");
288 fprintf (outfile
, ")");
296 else if (i
== 9 && JUMP_P (in_rtx
) && XEXP (in_rtx
, i
) != NULL
)
297 /* Output the JUMP_LABEL reference. */
298 fprintf (outfile
, "\n -> %d", INSN_UID (XEXP (in_rtx
, i
)));
305 fprintf (outfile
, " ");
306 print_rtx (XEXP (in_rtx
, i
));
315 fprintf (outfile
, "\n%s%*s",
316 print_rtx_head
, indent
* 2, "");
319 fputs (" [", outfile
);
320 if (NULL
!= XVEC (in_rtx
, i
))
323 if (XVECLEN (in_rtx
, i
))
326 for (j
= 0; j
< XVECLEN (in_rtx
, i
); j
++)
327 print_rtx (XVECEXP (in_rtx
, i
, j
));
332 fprintf (outfile
, "\n%s%*s", print_rtx_head
, indent
* 2, "");
334 fputs ("]", outfile
);
341 fprintf (outfile
, " ");
342 fprintf (outfile
, HOST_WIDE_INT_PRINT_DEC
, XWINT (in_rtx
, i
));
344 fprintf (outfile
, " [" HOST_WIDE_INT_PRINT_HEX
"]",
345 (unsigned HOST_WIDE_INT
) XWINT (in_rtx
, i
));
349 if (i
== 4 && INSN_P (in_rtx
))
351 #ifndef GENERATOR_FILE
352 /* Pretty-print insn locators. Ignore scoping as it is mostly
353 redundant with line number information and do not print anything
354 when there is no location information available. */
355 if (INSN_LOCATOR (in_rtx
) && insn_file (in_rtx
))
356 fprintf(outfile
, " %s:%i", insn_file (in_rtx
), insn_line (in_rtx
));
359 else if (i
== 6 && NOTE_P (in_rtx
))
361 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
362 other times often contains garbage from INSN->NOTE death. */
363 if (NOTE_KIND (in_rtx
) == NOTE_INSN_DELETED_LABEL
)
364 fprintf (outfile
, " %d", XINT (in_rtx
, i
));
368 int value
= XINT (in_rtx
, i
);
371 #ifndef GENERATOR_FILE
372 if (REG_P (in_rtx
) && value
< FIRST_PSEUDO_REGISTER
)
373 fprintf (outfile
, " %d %s", REGNO (in_rtx
),
374 reg_names
[REGNO (in_rtx
)]);
375 else if (REG_P (in_rtx
)
376 && value
<= LAST_VIRTUAL_REGISTER
)
378 if (value
== VIRTUAL_INCOMING_ARGS_REGNUM
)
379 fprintf (outfile
, " %d virtual-incoming-args", value
);
380 else if (value
== VIRTUAL_STACK_VARS_REGNUM
)
381 fprintf (outfile
, " %d virtual-stack-vars", value
);
382 else if (value
== VIRTUAL_STACK_DYNAMIC_REGNUM
)
383 fprintf (outfile
, " %d virtual-stack-dynamic", value
);
384 else if (value
== VIRTUAL_OUTGOING_ARGS_REGNUM
)
385 fprintf (outfile
, " %d virtual-outgoing-args", value
);
386 else if (value
== VIRTUAL_CFA_REGNUM
)
387 fprintf (outfile
, " %d virtual-cfa", value
);
389 fprintf (outfile
, " %d virtual-reg-%d", value
,
390 value
-FIRST_VIRTUAL_REGISTER
);
394 if (flag_dump_unnumbered
395 && (is_insn
|| NOTE_P (in_rtx
)))
396 fputc ('#', outfile
);
398 fprintf (outfile
, " %d", value
);
400 #ifndef GENERATOR_FILE
401 if (REG_P (in_rtx
) && REG_ATTRS (in_rtx
))
403 fputs (" [", outfile
);
404 if (ORIGINAL_REGNO (in_rtx
) != REGNO (in_rtx
))
405 fprintf (outfile
, "orig:%i", ORIGINAL_REGNO (in_rtx
));
406 if (REG_EXPR (in_rtx
))
407 print_mem_expr (outfile
, REG_EXPR (in_rtx
));
409 if (REG_OFFSET (in_rtx
))
410 fprintf (outfile
, "+" HOST_WIDE_INT_PRINT_DEC
,
411 REG_OFFSET (in_rtx
));
412 fputs (" ]", outfile
);
416 if (is_insn
&& &INSN_CODE (in_rtx
) == &XINT (in_rtx
, i
)
417 && XINT (in_rtx
, i
) >= 0
418 && (name
= get_insn_name (XINT (in_rtx
, i
))) != NULL
)
419 fprintf (outfile
, " {%s}", name
);
424 /* Print NOTE_INSN names rather than integer codes. */
427 fprintf (outfile
, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx
, i
)));
432 if (XEXP (in_rtx
, i
) != NULL
)
434 rtx sub
= XEXP (in_rtx
, i
);
435 enum rtx_code subc
= GET_CODE (sub
);
437 if (GET_CODE (in_rtx
) == LABEL_REF
)
440 && NOTE_KIND (sub
) == NOTE_INSN_DELETED_LABEL
)
442 if (flag_dump_unnumbered
)
443 fprintf (outfile
, " [# deleted]");
445 fprintf (outfile
, " [%d deleted]", INSN_UID (sub
));
450 if (subc
!= CODE_LABEL
)
454 if (flag_dump_unnumbered
455 || (flag_dump_unnumbered_links
&& (i
== 1 || i
== 2)
456 && (INSN_P (in_rtx
) || NOTE_P (in_rtx
)
457 || LABEL_P (in_rtx
) || BARRIER_P (in_rtx
))))
458 fputs (" #", outfile
);
460 fprintf (outfile
, " %d", INSN_UID (sub
));
463 fputs (" 0", outfile
);
468 #ifndef GENERATOR_FILE
469 if (XBITMAP (in_rtx
, i
) == NULL
)
470 fputs (" {null}", outfile
);
472 bitmap_print (outfile
, XBITMAP (in_rtx
, i
), " {", "}");
478 #ifndef GENERATOR_FILE
479 dump_addr (outfile
, " ", XTREE (in_rtx
, i
));
484 fputs (" Unknown", outfile
);
489 #ifndef GENERATOR_FILE
490 if (XBBDEF (in_rtx
, i
))
491 fprintf (outfile
, " %i", XBBDEF (in_rtx
, i
)->index
);
499 switch (GET_CODE (in_rtx
))
501 #ifndef GENERATOR_FILE
503 fprintf (outfile
, " [" HOST_WIDE_INT_PRINT_DEC
,
504 (HOST_WIDE_INT
) MEM_ALIAS_SET (in_rtx
));
506 if (MEM_EXPR (in_rtx
))
507 print_mem_expr (outfile
, MEM_EXPR (in_rtx
));
509 if (MEM_OFFSET (in_rtx
))
510 fprintf (outfile
, "+" HOST_WIDE_INT_PRINT_DEC
,
511 INTVAL (MEM_OFFSET (in_rtx
)));
513 if (MEM_SIZE (in_rtx
))
514 fprintf (outfile
, " S" HOST_WIDE_INT_PRINT_DEC
,
515 INTVAL (MEM_SIZE (in_rtx
)));
517 if (MEM_ALIGN (in_rtx
) != 1)
518 fprintf (outfile
, " A%u", MEM_ALIGN (in_rtx
));
520 fputc (']', outfile
);
524 if (FLOAT_MODE_P (GET_MODE (in_rtx
)))
528 real_to_decimal (s
, CONST_DOUBLE_REAL_VALUE (in_rtx
),
530 fprintf (outfile
, " %s", s
);
532 real_to_hexadecimal (s
, CONST_DOUBLE_REAL_VALUE (in_rtx
),
534 fprintf (outfile
, " [%s]", s
);
540 fprintf (outfile
, " [%d uses]", LABEL_NUSES (in_rtx
));
541 switch (LABEL_KIND (in_rtx
))
543 case LABEL_NORMAL
: break;
544 case LABEL_STATIC_ENTRY
: fputs (" [entry]", outfile
); break;
545 case LABEL_GLOBAL_ENTRY
: fputs (" [global entry]", outfile
); break;
546 case LABEL_WEAK_ENTRY
: fputs (" [weak entry]", outfile
); break;
547 default: gcc_unreachable ();
556 && (is_insn
|| NOTE_P (in_rtx
)
557 || LABEL_P (in_rtx
) || BARRIER_P (in_rtx
)))
561 fputc (')', outfile
);
566 /* Print an rtx on the current line of FILE. Initially indent IND
570 print_inline_rtx (FILE *outf
, const_rtx x
, int ind
)
572 int oldsaw
= sawclose
;
573 int oldindent
= indent
;
583 /* Call this function from the debugger to see what X looks like. */
586 debug_rtx (const_rtx x
)
591 fprintf (stderr
, "\n");
594 /* Count of rtx's to print with debug_rtx_list.
595 This global exists because gdb user defined commands have no arguments. */
597 int debug_rtx_count
= 0; /* 0 is treated as equivalent to 1 */
599 /* Call this function to print list from X on.
601 N is a count of the rtx's to print. Positive values print from the specified
602 rtx on. Negative values print a window around the rtx.
603 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
606 debug_rtx_list (const_rtx x
, int n
)
611 count
= n
== 0 ? 1 : n
< 0 ? -n
: n
;
613 /* If we are printing a window, back up to the start. */
616 for (i
= count
/ 2; i
> 0; i
--)
618 if (PREV_INSN (x
) == 0)
623 for (i
= count
, insn
= x
; i
> 0 && insn
!= 0; i
--, insn
= NEXT_INSN (insn
))
626 fprintf (stderr
, "\n");
630 /* Call this function to print an rtx list from START to END inclusive. */
633 debug_rtx_range (const_rtx start
, const_rtx end
)
638 fprintf (stderr
, "\n");
639 if (!start
|| start
== end
)
641 start
= NEXT_INSN (start
);
645 /* Call this function to search an rtx list to find one with insn uid UID,
646 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
647 The found insn is returned to enable further debugging analysis. */
650 debug_rtx_find (const_rtx x
, int uid
)
652 while (x
!= 0 && INSN_UID (x
) != uid
)
656 debug_rtx_list (x
, debug_rtx_count
);
661 fprintf (stderr
, "insn uid %d not found\n", uid
);
666 /* External entry point for printing a chain of insns
667 starting with RTX_FIRST onto file OUTF.
668 A blank line separates insns.
670 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
673 print_rtl (FILE *outf
, const_rtx rtx_first
)
682 fputs (print_rtx_head
, outf
);
683 fputs ("(nil)\n", outf
);
686 switch (GET_CODE (rtx_first
))
694 for (tmp_rtx
= rtx_first
; tmp_rtx
!= 0; tmp_rtx
= NEXT_INSN (tmp_rtx
))
696 fputs (print_rtx_head
, outfile
);
698 fprintf (outfile
, "\n");
703 fputs (print_rtx_head
, outfile
);
704 print_rtx (rtx_first
);
708 /* Like print_rtx, except specify a file. */
709 /* Return nonzero if we actually printed anything. */
712 print_rtl_single (FILE *outf
, const_rtx x
)
716 fputs (print_rtx_head
, outfile
);
723 /* Like print_rtl except without all the detail; for example,
724 if RTX is a CONST_INT then print in decimal format. */
727 print_simple_rtl (FILE *outf
, const_rtx x
)