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"
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;
63 /* Nonzero means suppress output of instruction numbers for previous
64 and next insns in debugging dumps.
65 This must be defined here so that programs like gencodes can be linked. */
66 int flag_dump_unnumbered_links = 0;
68 /* Nonzero means use simplified format without flags, modes, etc. */
71 /* Nonzero if we are dumping graphical description. */
74 #ifndef GENERATOR_FILE
76 print_decl_name (FILE *outfile, const_tree node)
79 fputs (IDENTIFIER_POINTER (DECL_NAME (node)), outfile);
82 if (TREE_CODE (node) == LABEL_DECL && LABEL_DECL_UID (node) != -1)
83 fprintf (outfile, "L.%d", (int) LABEL_DECL_UID (node));
86 char c = TREE_CODE (node) == CONST_DECL ? 'C' : 'D';
87 fprintf (outfile, "%c.%u", c, DECL_UID (node));
93 print_mem_expr (FILE *outfile, const_tree expr)
95 if (TREE_CODE (expr) == COMPONENT_REF)
97 if (TREE_OPERAND (expr, 0))
98 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
100 fputs (" <variable>", outfile);
101 fputc ('.', outfile);
102 print_decl_name (outfile, TREE_OPERAND (expr, 1));
104 else if (TREE_CODE (expr) == INDIRECT_REF)
106 fputs (" (*", outfile);
107 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
108 fputs (")", outfile);
110 else if (TREE_CODE (expr) == ALIGN_INDIRECT_REF)
112 fputs (" (A*", outfile);
113 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
114 fputs (")", outfile);
116 else if (TREE_CODE (expr) == MISALIGNED_INDIRECT_REF)
118 fputs (" (M*", outfile);
119 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
120 fputs (")", outfile);
122 else if (TREE_CODE (expr) == RESULT_DECL)
123 fputs (" <result>", outfile);
126 fputc (' ', outfile);
127 print_decl_name (outfile, expr);
132 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
135 print_rtx (const_rtx in_rtx)
139 const char *format_ptr;
145 fputc (' ', outfile);
147 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
153 fputs ("(nil)", outfile);
157 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
159 fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
164 is_insn = INSN_P (in_rtx);
166 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
167 in separate nodes and therefore have to handle them special here. */
169 && (is_insn || NOTE_P (in_rtx)
170 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
177 /* Print name of expression code. */
178 if (flag_simple && CONST_INT_P (in_rtx))
179 fputc ('(', outfile);
181 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
185 if (RTX_FLAG (in_rtx, in_struct))
186 fputs ("/s", outfile);
188 if (RTX_FLAG (in_rtx, volatil))
189 fputs ("/v", outfile);
191 if (RTX_FLAG (in_rtx, unchanging))
192 fputs ("/u", outfile);
194 if (RTX_FLAG (in_rtx, frame_related))
195 fputs ("/f", outfile);
197 if (RTX_FLAG (in_rtx, jump))
198 fputs ("/j", outfile);
200 if (RTX_FLAG (in_rtx, call))
201 fputs ("/c", outfile);
203 if (RTX_FLAG (in_rtx, return_val))
204 fputs ("/i", outfile);
206 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
207 if ((GET_CODE (in_rtx) == EXPR_LIST
208 || GET_CODE (in_rtx) == INSN_LIST)
209 && (int)GET_MODE (in_rtx) < REG_NOTE_MAX)
210 fprintf (outfile, ":%s",
211 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
213 /* For other rtl, print the mode if it's not VOID. */
214 else if (GET_MODE (in_rtx) != VOIDmode)
215 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
219 #ifndef GENERATOR_FILE
220 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
224 /* Get the format string and skip the first elements if we have handled
226 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
227 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
228 switch (*format_ptr++)
233 str = XTMPL (in_rtx, i);
238 str = XSTR (in_rtx, i);
242 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
246 fprintf (outfile, " (\\\"%s\\\")", str);
248 fprintf (outfile, " (\"%s\")", str);
253 /* 0 indicates a field for internal use that should not be printed.
254 An exception is the third field of a NOTE, where it indicates
255 that the field has several different valid contents. */
257 if (i == 1 && REG_P (in_rtx))
259 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
260 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
262 #ifndef GENERATOR_FILE
263 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
265 int flags = SYMBOL_REF_FLAGS (in_rtx);
267 fprintf (outfile, " [flags 0x%x]", flags);
269 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
271 tree decl = SYMBOL_REF_DECL (in_rtx);
273 print_node_brief (outfile, "", decl, 0);
276 else if (i == 4 && NOTE_P (in_rtx))
278 switch (NOTE_KIND (in_rtx))
280 case NOTE_INSN_EH_REGION_BEG:
281 case NOTE_INSN_EH_REGION_END:
282 if (flag_dump_unnumbered)
283 fprintf (outfile, " #");
285 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
289 case NOTE_INSN_BLOCK_BEG:
290 case NOTE_INSN_BLOCK_END:
291 #ifndef GENERATOR_FILE
292 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
297 case NOTE_INSN_BASIC_BLOCK:
299 #ifndef GENERATOR_FILE
300 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
302 fprintf (outfile, " [bb %d]", bb->index);
307 case NOTE_INSN_DELETED_LABEL:
309 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
311 fprintf (outfile, " (\"%s\")", label);
313 fprintf (outfile, " \"\"");
317 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
319 #ifndef GENERATOR_FILE
320 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
322 fprintf (outfile, " [bb %d]", bb->index);
327 case NOTE_INSN_VAR_LOCATION:
328 #ifndef GENERATOR_FILE
329 fprintf (outfile, " (");
330 print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
331 fprintf (outfile, " ");
332 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
333 if (NOTE_VAR_LOCATION_STATUS (in_rtx) ==
334 VAR_INIT_STATUS_UNINITIALIZED)
335 fprintf (outfile, " [uninit]");
336 fprintf (outfile, ")");
344 else if (i == 9 && JUMP_P (in_rtx) && XEXP (in_rtx, i) != NULL)
345 /* Output the JUMP_LABEL reference. */
346 fprintf (outfile, "\n -> %d", INSN_UID (XEXP (in_rtx, i)));
353 fprintf (outfile, " ");
354 print_rtx (XEXP (in_rtx, i));
363 fprintf (outfile, "\n%s%*s",
364 print_rtx_head, indent * 2, "");
367 fputs (" [", outfile);
368 if (NULL != XVEC (in_rtx, i))
371 if (XVECLEN (in_rtx, i))
374 for (j = 0; j < XVECLEN (in_rtx, i); j++)
375 print_rtx (XVECEXP (in_rtx, i, j));
380 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
382 fputs ("]", outfile);
389 fprintf (outfile, " ");
390 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
392 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
393 (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
397 if (i == 4 && INSN_P (in_rtx))
399 #ifndef GENERATOR_FILE
400 /* Pretty-print insn locators. Ignore scoping as it is mostly
401 redundant with line number information and do not print anything
402 when there is no location information available. */
403 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
404 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
407 else if (i == 6 && NOTE_P (in_rtx))
409 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
410 other times often contains garbage from INSN->NOTE death. */
411 if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL)
412 fprintf (outfile, " %d", XINT (in_rtx, i));
416 int value = XINT (in_rtx, i);
419 #ifndef GENERATOR_FILE
420 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
421 fprintf (outfile, " %d %s", REGNO (in_rtx),
422 reg_names[REGNO (in_rtx)]);
423 else if (REG_P (in_rtx)
424 && value <= LAST_VIRTUAL_REGISTER)
426 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
427 fprintf (outfile, " %d virtual-incoming-args", value);
428 else if (value == VIRTUAL_STACK_VARS_REGNUM)
429 fprintf (outfile, " %d virtual-stack-vars", value);
430 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
431 fprintf (outfile, " %d virtual-stack-dynamic", value);
432 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
433 fprintf (outfile, " %d virtual-outgoing-args", value);
434 else if (value == VIRTUAL_CFA_REGNUM)
435 fprintf (outfile, " %d virtual-cfa", value);
437 fprintf (outfile, " %d virtual-reg-%d", value,
438 value-FIRST_VIRTUAL_REGISTER);
442 if (flag_dump_unnumbered
443 && (is_insn || NOTE_P (in_rtx)))
444 fputc ('#', outfile);
446 fprintf (outfile, " %d", value);
448 #ifndef GENERATOR_FILE
449 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
451 fputs (" [", outfile);
452 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
453 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
454 if (REG_EXPR (in_rtx))
455 print_mem_expr (outfile, REG_EXPR (in_rtx));
457 if (REG_OFFSET (in_rtx))
458 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
459 REG_OFFSET (in_rtx));
460 fputs (" ]", outfile);
464 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
465 && XINT (in_rtx, i) >= 0
466 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
467 fprintf (outfile, " {%s}", name);
472 /* Print NOTE_INSN names rather than integer codes. */
475 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
480 if (XEXP (in_rtx, i) != NULL)
482 rtx sub = XEXP (in_rtx, i);
483 enum rtx_code subc = GET_CODE (sub);
485 if (GET_CODE (in_rtx) == LABEL_REF)
488 && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
490 if (flag_dump_unnumbered)
491 fprintf (outfile, " [# deleted]");
493 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
498 if (subc != CODE_LABEL)
502 if (flag_dump_unnumbered
503 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
504 && (INSN_P (in_rtx) || NOTE_P (in_rtx)
505 || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
506 fputs (" #", outfile);
508 fprintf (outfile, " %d", INSN_UID (sub));
511 fputs (" 0", outfile);
516 #ifndef GENERATOR_FILE
517 if (XBITMAP (in_rtx, i) == NULL)
518 fputs (" {null}", outfile);
520 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
526 #ifndef GENERATOR_FILE
527 dump_addr (outfile, " ", XTREE (in_rtx, i));
532 fputs (" Unknown", outfile);
537 #ifndef GENERATOR_FILE
538 if (XBBDEF (in_rtx, i))
539 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
547 switch (GET_CODE (in_rtx))
549 #ifndef GENERATOR_FILE
551 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
552 (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
554 if (MEM_EXPR (in_rtx))
555 print_mem_expr (outfile, MEM_EXPR (in_rtx));
557 if (MEM_OFFSET (in_rtx))
558 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
559 INTVAL (MEM_OFFSET (in_rtx)));
561 if (MEM_SIZE (in_rtx))
562 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
563 INTVAL (MEM_SIZE (in_rtx)));
565 if (MEM_ALIGN (in_rtx) != 1)
566 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
568 fputc (']', outfile);
572 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
576 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
578 fprintf (outfile, " %s", s);
580 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
582 fprintf (outfile, " [%s]", s);
588 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
589 switch (LABEL_KIND (in_rtx))
591 case LABEL_NORMAL: break;
592 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
593 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
594 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
595 default: gcc_unreachable ();
604 && (is_insn || NOTE_P (in_rtx)
605 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
609 fputc (')', outfile);
614 /* Print an rtx on the current line of FILE. Initially indent IND
618 print_inline_rtx (FILE *outf, const_rtx x, int ind)
620 int oldsaw = sawclose;
621 int oldindent = indent;
631 /* Call this function from the debugger to see what X looks like. */
634 debug_rtx (const_rtx x)
639 fprintf (stderr, "\n");
642 /* Count of rtx's to print with debug_rtx_list.
643 This global exists because gdb user defined commands have no arguments. */
645 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
647 /* Call this function to print list from X on.
649 N is a count of the rtx's to print. Positive values print from the specified
650 rtx on. Negative values print a window around the rtx.
651 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
654 debug_rtx_list (const_rtx x, int n)
659 count = n == 0 ? 1 : n < 0 ? -n : n;
661 /* If we are printing a window, back up to the start. */
664 for (i = count / 2; i > 0; i--)
666 if (PREV_INSN (x) == 0)
671 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
674 fprintf (stderr, "\n");
678 /* Call this function to print an rtx list from START to END inclusive. */
681 debug_rtx_range (const_rtx start, const_rtx end)
686 fprintf (stderr, "\n");
687 if (!start || start == end)
689 start = NEXT_INSN (start);
693 /* Call this function to search an rtx list to find one with insn uid UID,
694 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
695 The found insn is returned to enable further debugging analysis. */
698 debug_rtx_find (const_rtx x, int uid)
700 while (x != 0 && INSN_UID (x) != uid)
704 debug_rtx_list (x, debug_rtx_count);
709 fprintf (stderr, "insn uid %d not found\n", uid);
714 /* External entry point for printing a chain of insns
715 starting with RTX_FIRST onto file OUTF.
716 A blank line separates insns.
718 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
721 print_rtl (FILE *outf, const_rtx rtx_first)
730 fputs (print_rtx_head, outf);
731 fputs ("(nil)\n", outf);
734 switch (GET_CODE (rtx_first))
742 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
744 fputs (print_rtx_head, outfile);
746 fprintf (outfile, "\n");
751 fputs (print_rtx_head, outfile);
752 print_rtx (rtx_first);
756 /* Like print_rtx, except specify a file. */
757 /* Return nonzero if we actually printed anything. */
760 print_rtl_single (FILE *outf, const_rtx x)
764 fputs (print_rtx_head, outfile);
771 /* Like print_rtl except without all the detail; for example,
772 if RTX is a CONST_INT then print in decimal format. */
775 print_simple_rtl (FILE *outf, const_rtx x)