2 Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003, 2004
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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 (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 and line number
59 notes in debugging dumps.
60 This must be defined here so that programs like gencodes can be linked. */
61 int flag_dump_unnumbered = 0;
63 /* Nonzero means use simplified format without flags, modes, etc. */
66 /* Nonzero if we are dumping graphical description. */
69 #ifndef GENERATOR_FILE
71 print_decl_name (FILE *outfile, tree node)
74 fputs (IDENTIFIER_POINTER (DECL_NAME (node)), outfile);
77 if (TREE_CODE (node) == LABEL_DECL && LABEL_DECL_UID (node) != -1)
78 fprintf (outfile, "L." HOST_WIDE_INT_PRINT_DEC, LABEL_DECL_UID (node));
81 char c = TREE_CODE (node) == CONST_DECL ? 'C' : 'D';
82 fprintf (outfile, "%c.%u", c, DECL_UID (node));
88 print_mem_expr (FILE *outfile, tree expr)
90 if (TREE_CODE (expr) == COMPONENT_REF)
92 if (TREE_OPERAND (expr, 0))
93 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
95 fputs (" <variable>", outfile);
97 print_decl_name (outfile, TREE_OPERAND (expr, 1));
99 else if (TREE_CODE (expr) == INDIRECT_REF)
101 fputs (" (*", outfile);
102 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
103 fputs (")", outfile);
105 else if (TREE_CODE (expr) == ALIGN_INDIRECT_REF)
107 fputs (" (A*", outfile);
108 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
109 fputs (")", outfile);
111 else if (TREE_CODE (expr) == MISALIGNED_INDIRECT_REF)
113 fputs (" (M*", outfile);
114 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
115 fputs (")", outfile);
117 else if (TREE_CODE (expr) == RESULT_DECL)
118 fputs (" <result>", outfile);
121 fputc (' ', outfile);
122 print_decl_name (outfile, expr);
127 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
130 print_rtx (rtx in_rtx)
134 const char *format_ptr;
140 fputc (' ', outfile);
142 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
148 fputs ("(nil)", outfile);
152 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
154 fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
159 is_insn = INSN_P (in_rtx);
161 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
162 in separate nodes and therefore have to handle them special here. */
164 && (is_insn || NOTE_P (in_rtx)
165 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
172 /* Print name of expression code. */
173 if (flag_simple && GET_CODE (in_rtx) == CONST_INT)
174 fputc ('(', outfile);
176 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
180 if (RTX_FLAG (in_rtx, in_struct))
181 fputs ("/s", outfile);
183 if (RTX_FLAG (in_rtx, volatil))
184 fputs ("/v", outfile);
186 if (RTX_FLAG (in_rtx, unchanging))
187 fputs ("/u", outfile);
189 if (RTX_FLAG (in_rtx, frame_related))
190 fputs ("/f", outfile);
192 if (RTX_FLAG (in_rtx, jump))
193 fputs ("/j", outfile);
195 if (RTX_FLAG (in_rtx, call))
196 fputs ("/c", outfile);
198 if (RTX_FLAG (in_rtx, return_val))
199 fputs ("/i", outfile);
201 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
202 if (GET_CODE (in_rtx) == EXPR_LIST
203 || GET_CODE (in_rtx) == INSN_LIST)
204 fprintf (outfile, ":%s",
205 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
207 /* For other rtl, print the mode if it's not VOID. */
208 else if (GET_MODE (in_rtx) != VOIDmode)
209 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
213 #ifndef GENERATOR_FILE
214 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
218 /* Get the format string and skip the first elements if we have handled
220 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
221 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
222 switch (*format_ptr++)
227 str = XTMPL (in_rtx, i);
232 str = XSTR (in_rtx, i);
236 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
240 fprintf (outfile, " (\\\"%s\\\")", str);
242 fprintf (outfile, " (\"%s\")", str);
247 /* 0 indicates a field for internal use that should not be printed.
248 An exception is the third field of a NOTE, where it indicates
249 that the field has several different valid contents. */
251 if (i == 1 && REG_P (in_rtx))
253 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
254 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
256 #ifndef GENERATOR_FILE
257 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
259 int flags = SYMBOL_REF_FLAGS (in_rtx);
261 fprintf (outfile, " [flags 0x%x]", flags);
263 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
265 tree decl = SYMBOL_REF_DECL (in_rtx);
267 print_node_brief (outfile, "", decl, 0);
270 else if (i == 4 && NOTE_P (in_rtx))
272 switch (NOTE_LINE_NUMBER (in_rtx))
274 case NOTE_INSN_EH_REGION_BEG:
275 case NOTE_INSN_EH_REGION_END:
276 if (flag_dump_unnumbered)
277 fprintf (outfile, " #");
279 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
283 case NOTE_INSN_BLOCK_BEG:
284 case NOTE_INSN_BLOCK_END:
285 fprintf (outfile, " ");
286 if (flag_dump_unnumbered)
287 fprintf (outfile, "#");
289 fprintf (outfile, HOST_PTR_PRINTF,
290 (char *) NOTE_BLOCK (in_rtx));
294 case NOTE_INSN_BASIC_BLOCK:
296 #ifndef GENERATOR_FILE
297 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
299 fprintf (outfile, " [bb %d]", bb->index);
304 case NOTE_INSN_EXPECTED_VALUE:
307 fprintf (outfile, " ");
308 print_rtx (NOTE_EXPECTED_VALUE (in_rtx));
312 case NOTE_INSN_DELETED_LABEL:
314 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
316 fprintf (outfile, " (\"%s\")", label);
318 fprintf (outfile, " \"\"");
322 case NOTE_INSN_UNLIKELY_EXECUTED_CODE:
324 #ifndef GENERATOR_FILE
325 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
327 fprintf (outfile, " [bb %d]", bb->index);
332 case NOTE_INSN_VAR_LOCATION:
333 #ifndef GENERATOR_FILE
334 fprintf (outfile, " (");
335 print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
336 fprintf (outfile, " ");
337 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
338 fprintf (outfile, ")");
344 const char * const str = X0STR (in_rtx, i);
346 if (NOTE_LINE_NUMBER (in_rtx) < 0)
349 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
353 fprintf (outfile, " (\\\"%s\\\")", str);
355 fprintf (outfile, " (\"%s\")", str);
367 fprintf (outfile, " ");
368 print_rtx (XEXP (in_rtx, i));
377 fprintf (outfile, "\n%s%*s",
378 print_rtx_head, indent * 2, "");
381 fputs (" [", outfile);
382 if (NULL != XVEC (in_rtx, i))
385 if (XVECLEN (in_rtx, i))
388 for (j = 0; j < XVECLEN (in_rtx, i); j++)
389 print_rtx (XVECEXP (in_rtx, i, j));
394 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
396 fputs ("]", outfile);
403 fprintf (outfile, " ");
404 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
406 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
411 if (i == 4 && INSN_P (in_rtx))
413 #ifndef GENERATOR_FILE
414 /* Pretty-print insn locators. Ignore scoping as it is mostly
415 redundant with line number information and do not print anything
416 when there is no location information available. */
417 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
418 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
421 else if (i == 6 && NOTE_P (in_rtx))
423 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
424 other times often contains garbage from INSN->NOTE death. */
425 if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)
426 fprintf (outfile, " %d", XINT (in_rtx, i));
430 int value = XINT (in_rtx, i);
433 #ifndef GENERATOR_FILE
434 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
435 fprintf (outfile, " %d %s", REGNO (in_rtx),
436 reg_names[REGNO (in_rtx)]);
437 else if (REG_P (in_rtx)
438 && value <= LAST_VIRTUAL_REGISTER)
440 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
441 fprintf (outfile, " %d virtual-incoming-args", value);
442 else if (value == VIRTUAL_STACK_VARS_REGNUM)
443 fprintf (outfile, " %d virtual-stack-vars", value);
444 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
445 fprintf (outfile, " %d virtual-stack-dynamic", value);
446 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
447 fprintf (outfile, " %d virtual-outgoing-args", value);
448 else if (value == VIRTUAL_CFA_REGNUM)
449 fprintf (outfile, " %d virtual-cfa", value);
451 fprintf (outfile, " %d virtual-reg-%d", value,
452 value-FIRST_VIRTUAL_REGISTER);
456 if (flag_dump_unnumbered
457 && (is_insn || NOTE_P (in_rtx)))
458 fputc ('#', outfile);
460 fprintf (outfile, " %d", value);
462 #ifndef GENERATOR_FILE
463 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
465 fputs (" [", outfile);
466 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
467 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
468 if (REG_EXPR (in_rtx))
469 print_mem_expr (outfile, REG_EXPR (in_rtx));
471 if (REG_OFFSET (in_rtx))
472 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
473 REG_OFFSET (in_rtx));
474 fputs (" ]", outfile);
478 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
479 && XINT (in_rtx, i) >= 0
480 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
481 fprintf (outfile, " {%s}", name);
486 /* Print NOTE_INSN names rather than integer codes. */
489 if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS
490 && XINT (in_rtx, i) < (int) NOTE_INSN_MAX)
491 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
493 fprintf (outfile, " %d", XINT (in_rtx, i));
498 if (XEXP (in_rtx, i) != NULL)
500 rtx sub = XEXP (in_rtx, i);
501 enum rtx_code subc = GET_CODE (sub);
503 if (GET_CODE (in_rtx) == LABEL_REF)
506 && NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)
508 if (flag_dump_unnumbered)
509 fprintf (outfile, " [# deleted]");
511 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
516 if (subc != CODE_LABEL)
520 if (flag_dump_unnumbered)
521 fputs (" #", outfile);
523 fprintf (outfile, " %d", INSN_UID (sub));
526 fputs (" 0", outfile);
531 #ifndef GENERATOR_FILE
532 if (XBITMAP (in_rtx, i) == NULL)
533 fputs (" {null}", outfile);
535 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
541 fprintf (outfile, " " HOST_PTR_PRINTF, (void *) XTREE (in_rtx, i));
545 fputs (" Unknown", outfile);
550 #ifndef GENERATOR_FILE
551 if (XBBDEF (in_rtx, i))
552 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
558 "switch format wrong in rtl.print_rtx(). format was: %c.\n",
563 switch (GET_CODE (in_rtx))
565 #ifndef GENERATOR_FILE
567 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));
569 if (MEM_EXPR (in_rtx))
570 print_mem_expr (outfile, MEM_EXPR (in_rtx));
572 if (MEM_OFFSET (in_rtx))
573 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
574 INTVAL (MEM_OFFSET (in_rtx)));
576 if (MEM_SIZE (in_rtx))
577 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
578 INTVAL (MEM_SIZE (in_rtx)));
580 if (MEM_ALIGN (in_rtx) != 1)
581 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
583 fputc (']', outfile);
587 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
591 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
593 fprintf (outfile, " %s", s);
595 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
597 fprintf (outfile, " [%s]", s);
603 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
604 switch (LABEL_KIND (in_rtx))
606 case LABEL_NORMAL: break;
607 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
608 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
609 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
619 && (is_insn || NOTE_P (in_rtx)
620 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
624 fputc (')', outfile);
629 /* Print an rtx on the current line of FILE. Initially indent IND
633 print_inline_rtx (FILE *outf, rtx x, int ind)
635 int oldsaw = sawclose;
636 int oldindent = indent;
646 /* Call this function from the debugger to see what X looks like. */
654 fprintf (stderr, "\n");
657 /* Count of rtx's to print with debug_rtx_list.
658 This global exists because gdb user defined commands have no arguments. */
660 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
662 /* Call this function to print list from X on.
664 N is a count of the rtx's to print. Positive values print from the specified
665 rtx on. Negative values print a window around the rtx.
666 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
669 debug_rtx_list (rtx x, int n)
674 count = n == 0 ? 1 : n < 0 ? -n : n;
676 /* If we are printing a window, back up to the start. */
679 for (i = count / 2; i > 0; i--)
681 if (PREV_INSN (x) == 0)
686 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
689 fprintf (stderr, "\n");
693 /* Call this function to print an rtx list from START to END inclusive. */
696 debug_rtx_range (rtx start, rtx end)
701 fprintf (stderr, "\n");
702 if (!start || start == end)
704 start = NEXT_INSN (start);
708 /* Call this function to search an rtx list to find one with insn uid UID,
709 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
710 The found insn is returned to enable further debugging analysis. */
713 debug_rtx_find (rtx x, int uid)
715 while (x != 0 && INSN_UID (x) != uid)
719 debug_rtx_list (x, debug_rtx_count);
724 fprintf (stderr, "insn uid %d not found\n", uid);
729 /* External entry point for printing a chain of insns
730 starting with RTX_FIRST onto file OUTF.
731 A blank line separates insns.
733 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
736 print_rtl (FILE *outf, rtx rtx_first)
745 fputs (print_rtx_head, outf);
746 fputs ("(nil)\n", outf);
749 switch (GET_CODE (rtx_first))
757 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
758 if (! flag_dump_unnumbered
759 || !NOTE_P (tmp_rtx) || NOTE_LINE_NUMBER (tmp_rtx) < 0)
761 fputs (print_rtx_head, outfile);
763 fprintf (outfile, "\n");
768 fputs (print_rtx_head, outfile);
769 print_rtx (rtx_first);
773 /* Like print_rtx, except specify a file. */
774 /* Return nonzero if we actually printed anything. */
777 print_rtl_single (FILE *outf, rtx x)
781 if (! flag_dump_unnumbered
782 || !NOTE_P (x) || NOTE_LINE_NUMBER (x) < 0)
784 fputs (print_rtx_head, outfile);
793 /* Like print_rtl except without all the detail; for example,
794 if RTX is a CONST_INT then print in decimal format. */
797 print_simple_rtl (FILE *outf, rtx x)