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;
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 && GET_CODE (in_rtx) == CONST_INT)
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 fprintf (outfile, ":%s",
210 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
212 /* For other rtl, print the mode if it's not VOID. */
213 else if (GET_MODE (in_rtx) != VOIDmode)
214 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
218 #ifndef GENERATOR_FILE
219 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
223 /* Get the format string and skip the first elements if we have handled
225 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
226 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
227 switch (*format_ptr++)
232 str = XTMPL (in_rtx, i);
237 str = XSTR (in_rtx, i);
241 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
245 fprintf (outfile, " (\\\"%s\\\")", str);
247 fprintf (outfile, " (\"%s\")", str);
252 /* 0 indicates a field for internal use that should not be printed.
253 An exception is the third field of a NOTE, where it indicates
254 that the field has several different valid contents. */
256 if (i == 1 && REG_P (in_rtx))
258 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
259 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
261 #ifndef GENERATOR_FILE
262 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
264 int flags = SYMBOL_REF_FLAGS (in_rtx);
266 fprintf (outfile, " [flags 0x%x]", flags);
268 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
270 tree decl = SYMBOL_REF_DECL (in_rtx);
272 print_node_brief (outfile, "", decl, 0);
275 else if (i == 4 && NOTE_P (in_rtx))
277 switch (NOTE_KIND (in_rtx))
279 case NOTE_INSN_EH_REGION_BEG:
280 case NOTE_INSN_EH_REGION_END:
281 if (flag_dump_unnumbered)
282 fprintf (outfile, " #");
284 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
288 case NOTE_INSN_BLOCK_BEG:
289 case NOTE_INSN_BLOCK_END:
290 #ifndef GENERATOR_FILE
291 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
296 case NOTE_INSN_BASIC_BLOCK:
298 #ifndef GENERATOR_FILE
299 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
301 fprintf (outfile, " [bb %d]", bb->index);
306 case NOTE_INSN_DELETED_LABEL:
308 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
310 fprintf (outfile, " (\"%s\")", label);
312 fprintf (outfile, " \"\"");
316 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
318 #ifndef GENERATOR_FILE
319 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
321 fprintf (outfile, " [bb %d]", bb->index);
326 case NOTE_INSN_VAR_LOCATION:
327 #ifndef GENERATOR_FILE
328 fprintf (outfile, " (");
329 print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
330 fprintf (outfile, " ");
331 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
332 if (NOTE_VAR_LOCATION_STATUS (in_rtx) ==
333 VAR_INIT_STATUS_UNINITIALIZED)
334 fprintf (outfile, " [uninit]");
335 fprintf (outfile, ")");
343 else if (i == 9 && JUMP_P (in_rtx) && XEXP (in_rtx, i) != NULL)
344 /* Output the JUMP_LABEL reference. */
345 fprintf (outfile, "\n -> %d", INSN_UID (XEXP (in_rtx, i)));
352 fprintf (outfile, " ");
353 print_rtx (XEXP (in_rtx, i));
362 fprintf (outfile, "\n%s%*s",
363 print_rtx_head, indent * 2, "");
366 fputs (" [", outfile);
367 if (NULL != XVEC (in_rtx, i))
370 if (XVECLEN (in_rtx, i))
373 for (j = 0; j < XVECLEN (in_rtx, i); j++)
374 print_rtx (XVECEXP (in_rtx, i, j));
379 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
381 fputs ("]", outfile);
388 fprintf (outfile, " ");
389 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
391 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
392 (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
396 if (i == 4 && INSN_P (in_rtx))
398 #ifndef GENERATOR_FILE
399 /* Pretty-print insn locators. Ignore scoping as it is mostly
400 redundant with line number information and do not print anything
401 when there is no location information available. */
402 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
403 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
406 else if (i == 6 && NOTE_P (in_rtx))
408 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
409 other times often contains garbage from INSN->NOTE death. */
410 if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL)
411 fprintf (outfile, " %d", XINT (in_rtx, i));
415 int value = XINT (in_rtx, i);
418 #ifndef GENERATOR_FILE
419 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
420 fprintf (outfile, " %d %s", REGNO (in_rtx),
421 reg_names[REGNO (in_rtx)]);
422 else if (REG_P (in_rtx)
423 && value <= LAST_VIRTUAL_REGISTER)
425 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
426 fprintf (outfile, " %d virtual-incoming-args", value);
427 else if (value == VIRTUAL_STACK_VARS_REGNUM)
428 fprintf (outfile, " %d virtual-stack-vars", value);
429 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
430 fprintf (outfile, " %d virtual-stack-dynamic", value);
431 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
432 fprintf (outfile, " %d virtual-outgoing-args", value);
433 else if (value == VIRTUAL_CFA_REGNUM)
434 fprintf (outfile, " %d virtual-cfa", value);
436 fprintf (outfile, " %d virtual-reg-%d", value,
437 value-FIRST_VIRTUAL_REGISTER);
441 if (flag_dump_unnumbered
442 && (is_insn || NOTE_P (in_rtx)))
443 fputc ('#', outfile);
445 fprintf (outfile, " %d", value);
447 #ifndef GENERATOR_FILE
448 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
450 fputs (" [", outfile);
451 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
452 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
453 if (REG_EXPR (in_rtx))
454 print_mem_expr (outfile, REG_EXPR (in_rtx));
456 if (REG_OFFSET (in_rtx))
457 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
458 REG_OFFSET (in_rtx));
459 fputs (" ]", outfile);
463 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
464 && XINT (in_rtx, i) >= 0
465 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
466 fprintf (outfile, " {%s}", name);
471 /* Print NOTE_INSN names rather than integer codes. */
474 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
479 if (XEXP (in_rtx, i) != NULL)
481 rtx sub = XEXP (in_rtx, i);
482 enum rtx_code subc = GET_CODE (sub);
484 if (GET_CODE (in_rtx) == LABEL_REF)
487 && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
489 if (flag_dump_unnumbered)
490 fprintf (outfile, " [# deleted]");
492 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
497 if (subc != CODE_LABEL)
501 if (flag_dump_unnumbered
502 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
503 && (INSN_P (in_rtx) || NOTE_P (in_rtx)
504 || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
505 fputs (" #", outfile);
507 fprintf (outfile, " %d", INSN_UID (sub));
510 fputs (" 0", outfile);
515 #ifndef GENERATOR_FILE
516 if (XBITMAP (in_rtx, i) == NULL)
517 fputs (" {null}", outfile);
519 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
525 #ifndef GENERATOR_FILE
526 dump_addr (outfile, " ", XTREE (in_rtx, i));
531 fputs (" Unknown", outfile);
536 #ifndef GENERATOR_FILE
537 if (XBBDEF (in_rtx, i))
538 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
546 switch (GET_CODE (in_rtx))
548 #ifndef GENERATOR_FILE
550 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
551 (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
553 if (MEM_EXPR (in_rtx))
554 print_mem_expr (outfile, MEM_EXPR (in_rtx));
556 if (MEM_OFFSET (in_rtx))
557 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
558 INTVAL (MEM_OFFSET (in_rtx)));
560 if (MEM_SIZE (in_rtx))
561 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
562 INTVAL (MEM_SIZE (in_rtx)));
564 if (MEM_ALIGN (in_rtx) != 1)
565 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
567 fputc (']', outfile);
571 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
575 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
577 fprintf (outfile, " %s", s);
579 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
581 fprintf (outfile, " [%s]", s);
587 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
588 switch (LABEL_KIND (in_rtx))
590 case LABEL_NORMAL: break;
591 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
592 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
593 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
594 default: gcc_unreachable ();
603 && (is_insn || NOTE_P (in_rtx)
604 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
608 fputc (')', outfile);
613 /* Print an rtx on the current line of FILE. Initially indent IND
617 print_inline_rtx (FILE *outf, const_rtx x, int ind)
619 int oldsaw = sawclose;
620 int oldindent = indent;
630 /* Call this function from the debugger to see what X looks like. */
633 debug_rtx (const_rtx x)
638 fprintf (stderr, "\n");
641 /* Count of rtx's to print with debug_rtx_list.
642 This global exists because gdb user defined commands have no arguments. */
644 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
646 /* Call this function to print list from X on.
648 N is a count of the rtx's to print. Positive values print from the specified
649 rtx on. Negative values print a window around the rtx.
650 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
653 debug_rtx_list (const_rtx x, int n)
658 count = n == 0 ? 1 : n < 0 ? -n : n;
660 /* If we are printing a window, back up to the start. */
663 for (i = count / 2; i > 0; i--)
665 if (PREV_INSN (x) == 0)
670 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
673 fprintf (stderr, "\n");
677 /* Call this function to print an rtx list from START to END inclusive. */
680 debug_rtx_range (const_rtx start, const_rtx end)
685 fprintf (stderr, "\n");
686 if (!start || start == end)
688 start = NEXT_INSN (start);
692 /* Call this function to search an rtx list to find one with insn uid UID,
693 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
694 The found insn is returned to enable further debugging analysis. */
697 debug_rtx_find (const_rtx x, int uid)
699 while (x != 0 && INSN_UID (x) != uid)
703 debug_rtx_list (x, debug_rtx_count);
708 fprintf (stderr, "insn uid %d not found\n", uid);
713 /* External entry point for printing a chain of insns
714 starting with RTX_FIRST onto file OUTF.
715 A blank line separates insns.
717 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
720 print_rtl (FILE *outf, const_rtx rtx_first)
729 fputs (print_rtx_head, outf);
730 fputs ("(nil)\n", outf);
733 switch (GET_CODE (rtx_first))
741 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
743 fputs (print_rtx_head, outfile);
745 fprintf (outfile, "\n");
750 fputs (print_rtx_head, outfile);
751 print_rtx (rtx_first);
755 /* Like print_rtx, except specify a file. */
756 /* Return nonzero if we actually printed anything. */
759 print_rtl_single (FILE *outf, const_rtx x)
763 fputs (print_rtx_head, outfile);
770 /* Like print_rtl except without all the detail; for example,
771 if RTX is a CONST_INT then print in decimal format. */
774 print_simple_rtl (FILE *outf, const_rtx x)