2 Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003,
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"
47 static int sawclose
= 0;
51 static void print_rtx (const_rtx
);
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
= "";
58 /* Nonzero means suppress output of instruction numbers
60 This must be defined here so that programs like gencodes can be linked. */
61 int flag_dump_unnumbered
= 0;
64 /* Nonzero means use simplified format without flags, modes, etc. */
65 int flag_dump_simple_rtl
= 0;
68 /* Nonzero if we are dumping graphical description. */
71 #ifndef GENERATOR_FILE
73 print_decl_name (FILE *outfile
, const_tree node
)
76 fputs (IDENTIFIER_POINTER (DECL_NAME (node
)), outfile
);
79 if (TREE_CODE (node
) == LABEL_DECL
&& LABEL_DECL_UID (node
) != -1)
80 fprintf (outfile
, "L." HOST_WIDE_INT_PRINT_DEC
, LABEL_DECL_UID (node
));
83 char c
= TREE_CODE (node
) == CONST_DECL
? 'C' : 'D';
84 fprintf (outfile
, "%c.%u", c
, DECL_UID (node
));
90 print_mem_expr (FILE *outfile
, const_tree expr
)
92 if (TREE_CODE (expr
) == COMPONENT_REF
)
94 if (TREE_OPERAND (expr
, 0))
95 print_mem_expr (outfile
, TREE_OPERAND (expr
, 0));
97 fputs (" <variable>", outfile
);
99 print_decl_name (outfile
, TREE_OPERAND (expr
, 1));
101 else if (TREE_CODE (expr
) == INDIRECT_REF
)
103 fputs (" (*", outfile
);
104 print_mem_expr (outfile
, TREE_OPERAND (expr
, 0));
105 fputs (")", outfile
);
107 else if (TREE_CODE (expr
) == ALIGN_INDIRECT_REF
)
109 fputs (" (A*", outfile
);
110 print_mem_expr (outfile
, TREE_OPERAND (expr
, 0));
111 fputs (")", outfile
);
113 else if (TREE_CODE (expr
) == MISALIGNED_INDIRECT_REF
)
115 fputs (" (M*", outfile
);
116 print_mem_expr (outfile
, TREE_OPERAND (expr
, 0));
117 fputs (")", outfile
);
119 else if (TREE_CODE (expr
) == RESULT_DECL
)
120 fputs (" <result>", outfile
);
123 fputc (' ', outfile
);
124 print_decl_name (outfile
, expr
);
129 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
132 print_rtx (const_rtx in_rtx
)
136 const char *format_ptr
;
141 if (flag_dump_simple_rtl
)
142 fputc (' ', outfile
);
144 fprintf (outfile
, "\n%s%*s", print_rtx_head
, indent
* 2, "");
150 fputs ("(nil)", outfile
);
154 else if (GET_CODE (in_rtx
) > NUM_RTX_CODE
)
156 fprintf (outfile
, "(??? bad code %d\n)", GET_CODE (in_rtx
));
161 is_insn
= INSN_P (in_rtx
);
163 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
164 in separate nodes and therefore have to handle them special here. */
166 && (is_insn
|| NOTE_P (in_rtx
)
167 || LABEL_P (in_rtx
) || BARRIER_P (in_rtx
)))
174 /* Print name of expression code. */
175 if (flag_dump_simple_rtl
&& GET_CODE (in_rtx
) == CONST_INT
)
176 fputc ('(', outfile
);
178 fprintf (outfile
, "(%s", GET_RTX_NAME (GET_CODE (in_rtx
)));
180 if (! flag_dump_simple_rtl
)
182 if (RTX_FLAG (in_rtx
, in_struct
))
183 fputs ("/s", outfile
);
185 if (RTX_FLAG (in_rtx
, volatil
))
186 fputs ("/v", outfile
);
188 if (RTX_FLAG (in_rtx
, unchanging
))
189 fputs ("/u", outfile
);
191 if (RTX_FLAG (in_rtx
, frame_related
))
192 fputs ("/f", outfile
);
194 if (RTX_FLAG (in_rtx
, jump
))
195 fputs ("/j", outfile
);
197 if (RTX_FLAG (in_rtx
, call
))
198 fputs ("/c", outfile
);
200 if (RTX_FLAG (in_rtx
, return_val
))
201 fputs ("/i", outfile
);
203 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
204 if (GET_CODE (in_rtx
) == EXPR_LIST
205 || GET_CODE (in_rtx
) == INSN_LIST
)
206 fprintf (outfile
, ":%s",
207 GET_REG_NOTE_NAME (GET_MODE (in_rtx
)));
209 /* For other rtl, print the mode if it's not VOID. */
210 else if (GET_MODE (in_rtx
) != VOIDmode
)
211 fprintf (outfile
, ":%s", GET_MODE_NAME (GET_MODE (in_rtx
)));
215 #ifndef GENERATOR_FILE
216 if (GET_CODE (in_rtx
) == CONST_DOUBLE
&& FLOAT_MODE_P (GET_MODE (in_rtx
)))
220 /* Get the format string and skip the first elements if we have handled
222 format_ptr
= GET_RTX_FORMAT (GET_CODE (in_rtx
)) + i
;
223 for (; i
< GET_RTX_LENGTH (GET_CODE (in_rtx
)); i
++)
224 switch (*format_ptr
++)
229 str
= XTMPL (in_rtx
, i
);
234 str
= XSTR (in_rtx
, i
);
238 fputs (dump_for_graph
? " \\\"\\\"" : " \"\"", outfile
);
242 fprintf (outfile
, " (\\\"%s\\\")", str
);
244 fprintf (outfile
, " (\"%s\")", str
);
249 /* 0 indicates a field for internal use that should not be printed.
250 An exception is the third field of a NOTE, where it indicates
251 that the field has several different valid contents. */
253 if (i
== 1 && REG_P (in_rtx
))
255 if (REGNO (in_rtx
) != ORIGINAL_REGNO (in_rtx
))
256 fprintf (outfile
, " [%d]", ORIGINAL_REGNO (in_rtx
));
258 #ifndef GENERATOR_FILE
259 else if (i
== 1 && GET_CODE (in_rtx
) == SYMBOL_REF
)
261 int flags
= SYMBOL_REF_FLAGS (in_rtx
);
263 fprintf (outfile
, " [flags 0x%x]", flags
);
265 else if (i
== 2 && GET_CODE (in_rtx
) == SYMBOL_REF
)
267 tree decl
= SYMBOL_REF_DECL (in_rtx
);
269 print_node_brief (outfile
, "", decl
, 0);
272 else if (i
== 4 && NOTE_P (in_rtx
))
274 switch (NOTE_KIND (in_rtx
))
276 case NOTE_INSN_EH_REGION_BEG
:
277 case NOTE_INSN_EH_REGION_END
:
278 if (flag_dump_unnumbered
)
279 fprintf (outfile
, " #");
281 fprintf (outfile
, " %d", NOTE_EH_HANDLER (in_rtx
));
285 case NOTE_INSN_BLOCK_BEG
:
286 case NOTE_INSN_BLOCK_END
:
287 #ifndef GENERATOR_FILE
288 dump_addr (outfile
, " ", NOTE_BLOCK (in_rtx
));
293 case NOTE_INSN_BASIC_BLOCK
:
295 #ifndef GENERATOR_FILE
296 basic_block bb
= NOTE_BASIC_BLOCK (in_rtx
);
298 fprintf (outfile
, " [bb %d]", bb
->index
);
303 case NOTE_INSN_DELETED_LABEL
:
305 const char *label
= NOTE_DELETED_LABEL_NAME (in_rtx
);
307 fprintf (outfile
, " (\"%s\")", label
);
309 fprintf (outfile
, " \"\"");
313 case NOTE_INSN_SWITCH_TEXT_SECTIONS
:
315 #ifndef GENERATOR_FILE
316 basic_block bb
= NOTE_BASIC_BLOCK (in_rtx
);
318 fprintf (outfile
, " [bb %d]", bb
->index
);
323 case NOTE_INSN_VAR_LOCATION
:
324 #ifndef GENERATOR_FILE
325 fprintf (outfile
, " (");
326 print_mem_expr (outfile
, NOTE_VAR_LOCATION_DECL (in_rtx
));
327 fprintf (outfile
, " ");
328 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx
));
329 if (NOTE_VAR_LOCATION_STATUS (in_rtx
) ==
330 VAR_INIT_STATUS_UNINITIALIZED
)
331 fprintf (outfile
, " [uninit]");
332 fprintf (outfile
, ")");
346 fprintf (outfile
, " ");
347 print_rtx (XEXP (in_rtx
, i
));
356 fprintf (outfile
, "\n%s%*s",
357 print_rtx_head
, indent
* 2, "");
360 fputs (" [", outfile
);
361 if (NULL
!= XVEC (in_rtx
, i
))
364 if (XVECLEN (in_rtx
, i
))
367 for (j
= 0; j
< XVECLEN (in_rtx
, i
); j
++)
368 print_rtx (XVECEXP (in_rtx
, i
, j
));
373 fprintf (outfile
, "\n%s%*s", print_rtx_head
, indent
* 2, "");
375 fputs ("]", outfile
);
381 if (! flag_dump_simple_rtl
)
382 fprintf (outfile
, " ");
383 fprintf (outfile
, HOST_WIDE_INT_PRINT_DEC
, XWINT (in_rtx
, i
));
384 if (! flag_dump_simple_rtl
)
385 fprintf (outfile
, " [" HOST_WIDE_INT_PRINT_HEX
"]",
390 if (i
== 4 && INSN_P (in_rtx
))
392 #ifndef GENERATOR_FILE
393 /* Pretty-print insn locators. Ignore scoping as it is mostly
394 redundant with line number information and do not print anything
395 when there is no location information available. */
396 if (INSN_LOCATOR (in_rtx
) && insn_file (in_rtx
))
397 fprintf(outfile
, " %s:%i", insn_file (in_rtx
), insn_line (in_rtx
));
400 else if (i
== 6 && NOTE_P (in_rtx
))
402 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
403 other times often contains garbage from INSN->NOTE death. */
404 if (NOTE_KIND (in_rtx
) == NOTE_INSN_DELETED_LABEL
)
405 fprintf (outfile
, " %d", XINT (in_rtx
, i
));
409 int value
= XINT (in_rtx
, i
);
412 #ifndef GENERATOR_FILE
413 if (REG_P (in_rtx
) && value
< FIRST_PSEUDO_REGISTER
)
414 fprintf (outfile
, " %d %s", REGNO (in_rtx
),
415 reg_names
[REGNO (in_rtx
)]);
416 else if (REG_P (in_rtx
)
417 && value
<= LAST_VIRTUAL_REGISTER
)
419 if (value
== VIRTUAL_INCOMING_ARGS_REGNUM
)
420 fprintf (outfile
, " %d virtual-incoming-args", value
);
421 else if (value
== VIRTUAL_STACK_VARS_REGNUM
)
422 fprintf (outfile
, " %d virtual-stack-vars", value
);
423 else if (value
== VIRTUAL_STACK_DYNAMIC_REGNUM
)
424 fprintf (outfile
, " %d virtual-stack-dynamic", value
);
425 else if (value
== VIRTUAL_OUTGOING_ARGS_REGNUM
)
426 fprintf (outfile
, " %d virtual-outgoing-args", value
);
427 else if (value
== VIRTUAL_CFA_REGNUM
)
428 fprintf (outfile
, " %d virtual-cfa", value
);
430 fprintf (outfile
, " %d virtual-reg-%d", value
,
431 value
-FIRST_VIRTUAL_REGISTER
);
435 if (flag_dump_unnumbered
436 && (is_insn
|| NOTE_P (in_rtx
)))
437 fputc ('#', outfile
);
439 fprintf (outfile
, " %d", value
);
441 #ifndef GENERATOR_FILE
442 if (REG_P (in_rtx
) && REG_ATTRS (in_rtx
))
444 fputs (" [", outfile
);
445 if (ORIGINAL_REGNO (in_rtx
) != REGNO (in_rtx
))
446 fprintf (outfile
, "orig:%i", ORIGINAL_REGNO (in_rtx
));
447 if (REG_EXPR (in_rtx
))
448 print_mem_expr (outfile
, REG_EXPR (in_rtx
));
450 if (REG_OFFSET (in_rtx
))
451 fprintf (outfile
, "+" HOST_WIDE_INT_PRINT_DEC
,
452 REG_OFFSET (in_rtx
));
453 fputs (" ]", outfile
);
457 if (is_insn
&& &INSN_CODE (in_rtx
) == &XINT (in_rtx
, i
)
458 && XINT (in_rtx
, i
) >= 0
459 && (name
= get_insn_name (XINT (in_rtx
, i
))) != NULL
)
460 fprintf (outfile
, " {%s}", name
);
465 /* Print NOTE_INSN names rather than integer codes. */
468 fprintf (outfile
, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx
, i
)));
473 if (XEXP (in_rtx
, i
) != NULL
)
475 rtx sub
= XEXP (in_rtx
, i
);
476 enum rtx_code subc
= GET_CODE (sub
);
478 if (GET_CODE (in_rtx
) == LABEL_REF
)
481 && NOTE_KIND (sub
) == NOTE_INSN_DELETED_LABEL
)
483 if (flag_dump_unnumbered
)
484 fprintf (outfile
, " [# deleted]");
486 fprintf (outfile
, " [%d deleted]", INSN_UID (sub
));
491 if (subc
!= CODE_LABEL
)
495 if (flag_dump_unnumbered
)
496 fputs (" #", outfile
);
498 fprintf (outfile
, " %d", INSN_UID (sub
));
501 fputs (" 0", outfile
);
506 #ifndef GENERATOR_FILE
507 if (XBITMAP (in_rtx
, i
) == NULL
)
508 fputs (" {null}", outfile
);
510 bitmap_print (outfile
, XBITMAP (in_rtx
, i
), " {", "}");
516 #ifndef GENERATOR_FILE
517 dump_addr (outfile
, " ", XTREE (in_rtx
, i
));
522 fputs (" Unknown", outfile
);
527 #ifndef GENERATOR_FILE
528 if (XBBDEF (in_rtx
, i
))
529 fprintf (outfile
, " %i", XBBDEF (in_rtx
, i
)->index
);
537 switch (GET_CODE (in_rtx
))
539 #ifndef GENERATOR_FILE
541 fprintf (outfile
, " [" HOST_WIDE_INT_PRINT_DEC
,
542 (HOST_WIDE_INT
) MEM_ALIAS_SET (in_rtx
));
544 if (MEM_EXPR (in_rtx
))
545 print_mem_expr (outfile
, MEM_EXPR (in_rtx
));
547 if (MEM_OFFSET (in_rtx
))
548 fprintf (outfile
, "+" HOST_WIDE_INT_PRINT_DEC
,
549 INTVAL (MEM_OFFSET (in_rtx
)));
551 if (MEM_SIZE (in_rtx
))
552 fprintf (outfile
, " S" HOST_WIDE_INT_PRINT_DEC
,
553 INTVAL (MEM_SIZE (in_rtx
)));
555 if (MEM_ALIGN (in_rtx
) != 1)
556 fprintf (outfile
, " A%u", MEM_ALIGN (in_rtx
));
558 fputc (']', outfile
);
562 if (FLOAT_MODE_P (GET_MODE (in_rtx
)))
566 real_to_decimal (s
, CONST_DOUBLE_REAL_VALUE (in_rtx
),
568 fprintf (outfile
, " %s", s
);
570 real_to_hexadecimal (s
, CONST_DOUBLE_REAL_VALUE (in_rtx
),
572 fprintf (outfile
, " [%s]", s
);
578 fprintf (outfile
, " [%d uses]", LABEL_NUSES (in_rtx
));
579 switch (LABEL_KIND (in_rtx
))
581 case LABEL_NORMAL
: break;
582 case LABEL_STATIC_ENTRY
: fputs (" [entry]", outfile
); break;
583 case LABEL_GLOBAL_ENTRY
: fputs (" [global entry]", outfile
); break;
584 case LABEL_WEAK_ENTRY
: fputs (" [weak entry]", outfile
); break;
585 default: gcc_unreachable ();
594 && (is_insn
|| NOTE_P (in_rtx
)
595 || LABEL_P (in_rtx
) || BARRIER_P (in_rtx
)))
599 fputc (')', outfile
);
604 /* Print an rtx on the current line of FILE. Initially indent IND
608 print_inline_rtx (FILE *outf
, const_rtx x
, int ind
)
610 int oldsaw
= sawclose
;
611 int oldindent
= indent
;
621 /* Call this function from the debugger to see what X looks like. */
624 debug_rtx (const_rtx x
)
629 fprintf (stderr
, "\n");
632 /* Count of rtx's to print with debug_rtx_list.
633 This global exists because gdb user defined commands have no arguments. */
635 int debug_rtx_count
= 0; /* 0 is treated as equivalent to 1 */
637 /* Call this function to print list from X on.
639 N is a count of the rtx's to print. Positive values print from the specified
640 rtx on. Negative values print a window around the rtx.
641 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
644 debug_rtx_list (const_rtx x
, int n
)
649 count
= n
== 0 ? 1 : n
< 0 ? -n
: n
;
651 /* If we are printing a window, back up to the start. */
654 for (i
= count
/ 2; i
> 0; i
--)
656 if (PREV_INSN (x
) == 0)
661 for (i
= count
, insn
= x
; i
> 0 && insn
!= 0; i
--, insn
= NEXT_INSN (insn
))
664 fprintf (stderr
, "\n");
668 /* Call this function to print an rtx list from START to END inclusive. */
671 debug_rtx_range (const_rtx start
, const_rtx end
)
676 fprintf (stderr
, "\n");
677 if (!start
|| start
== end
)
679 start
= NEXT_INSN (start
);
683 /* Call this function to search an rtx list to find one with insn uid UID,
684 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
685 The found insn is returned to enable further debugging analysis. */
688 debug_rtx_find (const_rtx x
, int uid
)
690 while (x
!= 0 && INSN_UID (x
) != uid
)
694 debug_rtx_list (x
, debug_rtx_count
);
699 fprintf (stderr
, "insn uid %d not found\n", uid
);
704 /* External entry point for printing a chain of insns
705 starting with RTX_FIRST onto file OUTF.
706 A blank line separates insns.
708 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
711 print_rtl (FILE *outf
, const_rtx rtx_first
)
720 fputs (print_rtx_head
, outf
);
721 fputs ("(nil)\n", outf
);
724 switch (GET_CODE (rtx_first
))
732 for (tmp_rtx
= rtx_first
; tmp_rtx
!= 0; tmp_rtx
= NEXT_INSN (tmp_rtx
))
734 fputs (print_rtx_head
, outfile
);
736 fprintf (outfile
, "\n");
741 fputs (print_rtx_head
, outfile
);
742 print_rtx (rtx_first
);
746 /* Like print_rtx, except specify a file. */
747 /* Return nonzero if we actually printed anything. */
750 print_rtl_single (FILE *outf
, const_rtx x
)
754 if (! flag_dump_unnumbered
)
756 fputs (print_rtx_head
, outfile
);
765 /* Like print_rtl except without all the detail; for example,
766 if RTX is a CONST_INT then print in decimal format. */
769 print_simple_rtl (FILE *outf
, const_rtx x
)
771 int save
= flag_dump_simple_rtl
;
773 flag_dump_simple_rtl
= 1;
775 flag_dump_simple_rtl
= save
;