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 2, 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 COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 /* This file is compiled twice: once for the generator programs,
24 once for the compiler. */
32 #include "coretypes.h"
36 /* These headers all define things which are not available in
37 generator programs. */
38 #ifndef GENERATOR_FILE
42 #include "hard-reg-set.h"
43 #include "basic-block.h"
48 static int sawclose = 0;
52 static void print_rtx (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 and line number
60 notes in debugging dumps.
61 This must be defined here so that programs like gencodes can be linked. */
62 int flag_dump_unnumbered = 0;
64 /* Nonzero means use simplified format without flags, modes, etc. */
67 /* Nonzero if we are dumping graphical description. */
70 #ifndef GENERATOR_FILE
72 print_decl_name (FILE *outfile, tree node)
75 fputs (IDENTIFIER_POINTER (DECL_NAME (node)), outfile);
78 if (TREE_CODE (node) == LABEL_DECL && LABEL_DECL_UID (node) != -1)
79 fprintf (outfile, "L." HOST_WIDE_INT_PRINT_DEC, LABEL_DECL_UID (node));
82 char c = TREE_CODE (node) == CONST_DECL ? 'C' : 'D';
83 fprintf (outfile, "%c.%u", c, DECL_UID (node));
89 print_mem_expr (FILE *outfile, tree expr)
91 if (TREE_CODE (expr) == COMPONENT_REF)
93 if (TREE_OPERAND (expr, 0))
94 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
96 fputs (" <variable>", outfile);
98 print_decl_name (outfile, TREE_OPERAND (expr, 1));
100 else if (TREE_CODE (expr) == INDIRECT_REF)
102 fputs (" (*", outfile);
103 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
104 fputs (")", outfile);
106 else if (TREE_CODE (expr) == ALIGN_INDIRECT_REF)
108 fputs (" (A*", outfile);
109 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
110 fputs (")", outfile);
112 else if (TREE_CODE (expr) == MISALIGNED_INDIRECT_REF)
114 fputs (" (M*", outfile);
115 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
116 fputs (")", outfile);
118 else if (TREE_CODE (expr) == RESULT_DECL)
119 fputs (" <result>", outfile);
122 fputc (' ', outfile);
123 print_decl_name (outfile, expr);
128 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
131 print_rtx (rtx in_rtx)
135 const char *format_ptr;
141 fputc (' ', outfile);
143 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
149 fputs ("(nil)", outfile);
153 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
155 fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
160 is_insn = INSN_P (in_rtx);
162 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
163 in separate nodes and therefore have to handle them special here. */
165 && (is_insn || NOTE_P (in_rtx)
166 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
173 /* Print name of expression code. */
174 if (flag_simple && GET_CODE (in_rtx) == CONST_INT)
175 fputc ('(', outfile);
177 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
181 if (RTX_FLAG (in_rtx, in_struct))
182 fputs ("/s", outfile);
184 if (RTX_FLAG (in_rtx, volatil))
185 fputs ("/v", outfile);
187 if (RTX_FLAG (in_rtx, unchanging))
188 fputs ("/u", outfile);
190 if (RTX_FLAG (in_rtx, frame_related))
191 fputs ("/f", outfile);
193 if (RTX_FLAG (in_rtx, jump))
194 fputs ("/j", outfile);
196 if (RTX_FLAG (in_rtx, call))
197 fputs ("/c", outfile);
199 if (RTX_FLAG (in_rtx, return_val))
200 fputs ("/i", outfile);
202 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
203 if (GET_CODE (in_rtx) == EXPR_LIST
204 || GET_CODE (in_rtx) == INSN_LIST)
205 fprintf (outfile, ":%s",
206 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
208 /* For other rtl, print the mode if it's not VOID. */
209 else if (GET_MODE (in_rtx) != VOIDmode)
210 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
214 #ifndef GENERATOR_FILE
215 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
219 /* Get the format string and skip the first elements if we have handled
221 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
222 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
223 switch (*format_ptr++)
228 str = XTMPL (in_rtx, i);
233 str = XSTR (in_rtx, i);
237 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
241 fprintf (outfile, " (\\\"%s\\\")", str);
243 fprintf (outfile, " (\"%s\")", str);
248 /* 0 indicates a field for internal use that should not be printed.
249 An exception is the third field of a NOTE, where it indicates
250 that the field has several different valid contents. */
252 if (i == 1 && REG_P (in_rtx))
254 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
255 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
257 #ifndef GENERATOR_FILE
258 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
260 int flags = SYMBOL_REF_FLAGS (in_rtx);
262 fprintf (outfile, " [flags 0x%x]", flags);
264 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
266 tree decl = SYMBOL_REF_DECL (in_rtx);
268 print_node_brief (outfile, "", decl, 0);
271 else if (i == 4 && NOTE_P (in_rtx))
273 switch (NOTE_LINE_NUMBER (in_rtx))
275 case NOTE_INSN_EH_REGION_BEG:
276 case NOTE_INSN_EH_REGION_END:
277 if (flag_dump_unnumbered)
278 fprintf (outfile, " #");
280 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
284 case NOTE_INSN_BLOCK_BEG:
285 case NOTE_INSN_BLOCK_END:
286 fprintf (outfile, " ");
287 if (flag_dump_unnumbered)
288 fprintf (outfile, "#");
290 fprintf (outfile, "%p",
291 (char *) NOTE_BLOCK (in_rtx));
295 case NOTE_INSN_BASIC_BLOCK:
297 #ifndef GENERATOR_FILE
298 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
300 fprintf (outfile, " [bb %d]", bb->index);
305 case NOTE_INSN_EXPECTED_VALUE:
308 fprintf (outfile, " ");
309 print_rtx (NOTE_EXPECTED_VALUE (in_rtx));
313 case NOTE_INSN_DELETED_LABEL:
315 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
317 fprintf (outfile, " (\"%s\")", label);
319 fprintf (outfile, " \"\"");
323 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
325 #ifndef GENERATOR_FILE
326 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
328 fprintf (outfile, " [bb %d]", bb->index);
333 case NOTE_INSN_VAR_LOCATION:
334 #ifndef GENERATOR_FILE
335 fprintf (outfile, " (");
336 print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
337 fprintf (outfile, " ");
338 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
339 fprintf (outfile, ")");
345 const char * const str = X0STR (in_rtx, i);
347 if (NOTE_LINE_NUMBER (in_rtx) < 0)
350 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
354 fprintf (outfile, " (\\\"%s\\\")", str);
356 fprintf (outfile, " (\"%s\")", str);
368 fprintf (outfile, " ");
369 print_rtx (XEXP (in_rtx, i));
378 fprintf (outfile, "\n%s%*s",
379 print_rtx_head, indent * 2, "");
382 fputs (" [", outfile);
383 if (NULL != XVEC (in_rtx, i))
386 if (XVECLEN (in_rtx, i))
389 for (j = 0; j < XVECLEN (in_rtx, i); j++)
390 print_rtx (XVECEXP (in_rtx, i, j));
395 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
397 fputs ("]", outfile);
404 fprintf (outfile, " ");
405 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
407 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
412 if (i == 4 && INSN_P (in_rtx))
414 #ifndef GENERATOR_FILE
415 /* Pretty-print insn locators. Ignore scoping as it is mostly
416 redundant with line number information and do not print anything
417 when there is no location information available. */
418 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
419 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
422 else if (i == 6 && NOTE_P (in_rtx))
424 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
425 other times often contains garbage from INSN->NOTE death. */
426 if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)
427 fprintf (outfile, " %d", XINT (in_rtx, i));
431 int value = XINT (in_rtx, i);
434 #ifndef GENERATOR_FILE
435 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
436 fprintf (outfile, " %d %s", REGNO (in_rtx),
437 reg_names[REGNO (in_rtx)]);
438 else if (REG_P (in_rtx)
439 && value <= LAST_VIRTUAL_REGISTER)
441 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
442 fprintf (outfile, " %d virtual-incoming-args", value);
443 else if (value == VIRTUAL_STACK_VARS_REGNUM)
444 fprintf (outfile, " %d virtual-stack-vars", value);
445 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
446 fprintf (outfile, " %d virtual-stack-dynamic", value);
447 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
448 fprintf (outfile, " %d virtual-outgoing-args", value);
449 else if (value == VIRTUAL_CFA_REGNUM)
450 fprintf (outfile, " %d virtual-cfa", value);
452 fprintf (outfile, " %d virtual-reg-%d", value,
453 value-FIRST_VIRTUAL_REGISTER);
457 if (flag_dump_unnumbered
458 && (is_insn || NOTE_P (in_rtx)))
459 fputc ('#', outfile);
461 fprintf (outfile, " %d", value);
463 #ifndef GENERATOR_FILE
464 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
466 fputs (" [", outfile);
467 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
468 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
469 if (REG_EXPR (in_rtx))
470 print_mem_expr (outfile, REG_EXPR (in_rtx));
472 if (REG_OFFSET (in_rtx))
473 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
474 REG_OFFSET (in_rtx));
475 fputs (" ]", outfile);
479 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
480 && XINT (in_rtx, i) >= 0
481 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
482 fprintf (outfile, " {%s}", name);
487 /* Print NOTE_INSN names rather than integer codes. */
490 if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS
491 && XINT (in_rtx, i) < (int) NOTE_INSN_MAX)
492 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
494 fprintf (outfile, " %d", XINT (in_rtx, i));
499 if (XEXP (in_rtx, i) != NULL)
501 rtx sub = XEXP (in_rtx, i);
502 enum rtx_code subc = GET_CODE (sub);
504 if (GET_CODE (in_rtx) == LABEL_REF)
507 && NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)
509 if (flag_dump_unnumbered)
510 fprintf (outfile, " [# deleted]");
512 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
517 if (subc != CODE_LABEL)
521 if (flag_dump_unnumbered)
522 fputs (" #", outfile);
524 fprintf (outfile, " %d", INSN_UID (sub));
527 fputs (" 0", outfile);
532 #ifndef GENERATOR_FILE
533 if (XBITMAP (in_rtx, i) == NULL)
534 fputs (" {null}", outfile);
536 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
542 fprintf (outfile, " %p", (void *) XTREE (in_rtx, i));
546 fputs (" Unknown", outfile);
551 #ifndef GENERATOR_FILE
552 if (XBBDEF (in_rtx, i))
553 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
561 switch (GET_CODE (in_rtx))
563 #ifndef GENERATOR_FILE
565 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));
567 if (MEM_EXPR (in_rtx))
568 print_mem_expr (outfile, MEM_EXPR (in_rtx));
570 if (MEM_OFFSET (in_rtx))
571 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
572 INTVAL (MEM_OFFSET (in_rtx)));
574 if (MEM_SIZE (in_rtx))
575 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
576 INTVAL (MEM_SIZE (in_rtx)));
578 if (MEM_ALIGN (in_rtx) != 1)
579 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
581 fputc (']', outfile);
585 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
589 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
591 fprintf (outfile, " %s", s);
593 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
595 fprintf (outfile, " [%s]", s);
601 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
602 switch (LABEL_KIND (in_rtx))
604 case LABEL_NORMAL: break;
605 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
606 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
607 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
608 default: gcc_unreachable ();
617 && (is_insn || NOTE_P (in_rtx)
618 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
622 fputc (')', outfile);
627 /* Print an rtx on the current line of FILE. Initially indent IND
631 print_inline_rtx (FILE *outf, rtx x, int ind)
633 int oldsaw = sawclose;
634 int oldindent = indent;
644 /* Call this function from the debugger to see what X looks like. */
652 fprintf (stderr, "\n");
655 /* Count of rtx's to print with debug_rtx_list.
656 This global exists because gdb user defined commands have no arguments. */
658 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
660 /* Call this function to print list from X on.
662 N is a count of the rtx's to print. Positive values print from the specified
663 rtx on. Negative values print a window around the rtx.
664 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
667 debug_rtx_list (rtx x, int n)
672 count = n == 0 ? 1 : n < 0 ? -n : n;
674 /* If we are printing a window, back up to the start. */
677 for (i = count / 2; i > 0; i--)
679 if (PREV_INSN (x) == 0)
684 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
687 fprintf (stderr, "\n");
691 /* Call this function to print an rtx list from START to END inclusive. */
694 debug_rtx_range (rtx start, rtx end)
699 fprintf (stderr, "\n");
700 if (!start || start == end)
702 start = NEXT_INSN (start);
706 /* Call this function to search an rtx list to find one with insn uid UID,
707 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
708 The found insn is returned to enable further debugging analysis. */
711 debug_rtx_find (rtx x, int uid)
713 while (x != 0 && INSN_UID (x) != uid)
717 debug_rtx_list (x, debug_rtx_count);
722 fprintf (stderr, "insn uid %d not found\n", uid);
727 /* External entry point for printing a chain of insns
728 starting with RTX_FIRST onto file OUTF.
729 A blank line separates insns.
731 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
734 print_rtl (FILE *outf, rtx rtx_first)
743 fputs (print_rtx_head, outf);
744 fputs ("(nil)\n", outf);
747 switch (GET_CODE (rtx_first))
755 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
756 if (! flag_dump_unnumbered
757 || !NOTE_P (tmp_rtx) || NOTE_LINE_NUMBER (tmp_rtx) < 0)
759 fputs (print_rtx_head, outfile);
761 fprintf (outfile, "\n");
766 fputs (print_rtx_head, outfile);
767 print_rtx (rtx_first);
771 /* Like print_rtx, except specify a file. */
772 /* Return nonzero if we actually printed anything. */
775 print_rtl_single (FILE *outf, rtx x)
779 if (! flag_dump_unnumbered
780 || !NOTE_P (x) || NOTE_LINE_NUMBER (x) < 0)
782 fputs (print_rtx_head, outfile);
791 /* Like print_rtl except without all the detail; for example,
792 if RTX is a CONST_INT then print in decimal format. */
795 print_simple_rtl (FILE *outf, rtx x)