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) == RESULT_DECL)
106 fputs (" <result>", outfile);
109 fputc (' ', outfile);
110 print_decl_name (outfile, expr);
115 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
118 print_rtx (rtx in_rtx)
122 const char *format_ptr;
128 fputc (' ', outfile);
130 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
136 fputs ("(nil)", outfile);
140 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
142 fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
147 is_insn = INSN_P (in_rtx);
149 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
150 in separate nodes and therefore have to handle them special here. */
152 && (is_insn || NOTE_P (in_rtx)
153 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
160 /* Print name of expression code. */
161 if (flag_simple && GET_CODE (in_rtx) == CONST_INT)
162 fputc ('(', outfile);
164 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
168 if (RTX_FLAG (in_rtx, in_struct))
169 fputs ("/s", outfile);
171 if (RTX_FLAG (in_rtx, volatil))
172 fputs ("/v", outfile);
174 if (RTX_FLAG (in_rtx, unchanging))
175 fputs ("/u", outfile);
177 if (RTX_FLAG (in_rtx, frame_related))
178 fputs ("/f", outfile);
180 if (RTX_FLAG (in_rtx, jump))
181 fputs ("/j", outfile);
183 if (RTX_FLAG (in_rtx, call))
184 fputs ("/c", outfile);
186 if (RTX_FLAG (in_rtx, return_val))
187 fputs ("/i", outfile);
189 if (GET_MODE (in_rtx) != VOIDmode)
191 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
192 if (GET_CODE (in_rtx) == EXPR_LIST
193 || GET_CODE (in_rtx) == INSN_LIST)
194 fprintf (outfile, ":%s",
195 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
197 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
202 #ifndef GENERATOR_FILE
203 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
207 /* Get the format string and skip the first elements if we have handled
209 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
210 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
211 switch (*format_ptr++)
216 str = XTMPL (in_rtx, i);
221 str = XSTR (in_rtx, i);
225 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
229 fprintf (outfile, " (\\\"%s\\\")", str);
231 fprintf (outfile, " (\"%s\")", str);
236 /* 0 indicates a field for internal use that should not be printed.
237 An exception is the third field of a NOTE, where it indicates
238 that the field has several different valid contents. */
240 if (i == 1 && REG_P (in_rtx))
242 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
243 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
245 #ifndef GENERATOR_FILE
246 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
248 int flags = SYMBOL_REF_FLAGS (in_rtx);
250 fprintf (outfile, " [flags 0x%x]", flags);
252 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
254 tree decl = SYMBOL_REF_DECL (in_rtx);
256 print_node_brief (outfile, "", decl, 0);
259 else if (i == 4 && NOTE_P (in_rtx))
261 switch (NOTE_LINE_NUMBER (in_rtx))
263 case NOTE_INSN_EH_REGION_BEG:
264 case NOTE_INSN_EH_REGION_END:
265 if (flag_dump_unnumbered)
266 fprintf (outfile, " #");
268 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
272 case NOTE_INSN_BLOCK_BEG:
273 case NOTE_INSN_BLOCK_END:
274 fprintf (outfile, " ");
275 if (flag_dump_unnumbered)
276 fprintf (outfile, "#");
278 fprintf (outfile, HOST_PTR_PRINTF,
279 (char *) NOTE_BLOCK (in_rtx));
283 case NOTE_INSN_BASIC_BLOCK:
285 #ifndef GENERATOR_FILE
286 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
288 fprintf (outfile, " [bb %d]", bb->index);
293 case NOTE_INSN_EXPECTED_VALUE:
296 fprintf (outfile, " ");
297 print_rtx (NOTE_EXPECTED_VALUE (in_rtx));
301 case NOTE_INSN_DELETED_LABEL:
303 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
305 fprintf (outfile, " (\"%s\")", label);
307 fprintf (outfile, " \"\"");
311 case NOTE_INSN_UNLIKELY_EXECUTED_CODE:
313 #ifndef GENERATOR_FILE
314 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
316 fprintf (outfile, " [bb %d]", bb->index);
321 case NOTE_INSN_VAR_LOCATION:
322 #ifndef GENERATOR_FILE
323 fprintf (outfile, " (");
324 print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
325 fprintf (outfile, " ");
326 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
327 fprintf (outfile, ")");
333 const char * const str = X0STR (in_rtx, i);
335 if (NOTE_LINE_NUMBER (in_rtx) < 0)
338 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
342 fprintf (outfile, " (\\\"%s\\\")", str);
344 fprintf (outfile, " (\"%s\")", str);
356 fprintf (outfile, " ");
357 print_rtx (XEXP (in_rtx, i));
366 fprintf (outfile, "\n%s%*s",
367 print_rtx_head, indent * 2, "");
370 fputs (" [", outfile);
371 if (NULL != XVEC (in_rtx, i))
374 if (XVECLEN (in_rtx, i))
377 for (j = 0; j < XVECLEN (in_rtx, i); j++)
378 print_rtx (XVECEXP (in_rtx, i, j));
383 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
385 fputs ("]", outfile);
392 fprintf (outfile, " ");
393 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
395 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
400 if (i == 4 && INSN_P (in_rtx))
402 #ifndef GENERATOR_FILE
403 /* Pretty-print insn locators. Ignore scoping as it is mostly
404 redundant with line number information and do not print anything
405 when there is no location information available. */
406 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
407 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
410 else if (i == 6 && NOTE_P (in_rtx))
412 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
413 other times often contains garbage from INSN->NOTE death. */
414 if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)
415 fprintf (outfile, " %d", XINT (in_rtx, i));
419 int value = XINT (in_rtx, i);
422 #ifndef GENERATOR_FILE
423 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
424 fprintf (outfile, " %d %s", REGNO (in_rtx),
425 reg_names[REGNO (in_rtx)]);
426 else if (REG_P (in_rtx)
427 && value <= LAST_VIRTUAL_REGISTER)
429 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
430 fprintf (outfile, " %d virtual-incoming-args", value);
431 else if (value == VIRTUAL_STACK_VARS_REGNUM)
432 fprintf (outfile, " %d virtual-stack-vars", value);
433 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
434 fprintf (outfile, " %d virtual-stack-dynamic", value);
435 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
436 fprintf (outfile, " %d virtual-outgoing-args", value);
437 else if (value == VIRTUAL_CFA_REGNUM)
438 fprintf (outfile, " %d virtual-cfa", value);
440 fprintf (outfile, " %d virtual-reg-%d", value,
441 value-FIRST_VIRTUAL_REGISTER);
445 if (flag_dump_unnumbered
446 && (is_insn || NOTE_P (in_rtx)))
447 fputc ('#', outfile);
449 fprintf (outfile, " %d", value);
451 #ifndef GENERATOR_FILE
452 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
454 fputs (" [", outfile);
455 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
456 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
457 if (REG_EXPR (in_rtx))
458 print_mem_expr (outfile, REG_EXPR (in_rtx));
460 if (REG_OFFSET (in_rtx))
461 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
462 REG_OFFSET (in_rtx));
463 fputs (" ]", outfile);
467 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
468 && XINT (in_rtx, i) >= 0
469 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
470 fprintf (outfile, " {%s}", name);
475 /* Print NOTE_INSN names rather than integer codes. */
478 if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS
479 && XINT (in_rtx, i) < (int) NOTE_INSN_MAX)
480 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
482 fprintf (outfile, " %d", XINT (in_rtx, i));
487 if (XEXP (in_rtx, i) != NULL)
489 rtx sub = XEXP (in_rtx, i);
490 enum rtx_code subc = GET_CODE (sub);
492 if (GET_CODE (in_rtx) == LABEL_REF)
495 && NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)
497 if (flag_dump_unnumbered)
498 fprintf (outfile, " [# deleted]");
500 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
505 if (subc != CODE_LABEL)
509 if (flag_dump_unnumbered)
510 fputs (" #", outfile);
512 fprintf (outfile, " %d", INSN_UID (sub));
515 fputs (" 0", outfile);
520 #ifndef GENERATOR_FILE
521 if (XBITMAP (in_rtx, i) == NULL)
522 fputs (" {null}", outfile);
524 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
530 fprintf (outfile, " " HOST_PTR_PRINTF, (void *) XTREE (in_rtx, i));
534 fputs (" Unknown", outfile);
539 #ifndef GENERATOR_FILE
540 if (XBBDEF (in_rtx, i))
541 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
547 "switch format wrong in rtl.print_rtx(). format was: %c.\n",
552 switch (GET_CODE (in_rtx))
554 #ifndef GENERATOR_FILE
556 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));
558 if (MEM_EXPR (in_rtx))
559 print_mem_expr (outfile, MEM_EXPR (in_rtx));
561 if (MEM_OFFSET (in_rtx))
562 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
563 INTVAL (MEM_OFFSET (in_rtx)));
565 if (MEM_SIZE (in_rtx))
566 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
567 INTVAL (MEM_SIZE (in_rtx)));
569 if (MEM_ALIGN (in_rtx) != 1)
570 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
572 fputc (']', outfile);
576 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
580 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
582 fprintf (outfile, " %s", s);
584 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
586 fprintf (outfile, " [%s]", s);
592 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
593 switch (LABEL_KIND (in_rtx))
595 case LABEL_NORMAL: break;
596 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
597 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
598 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
608 && (is_insn || NOTE_P (in_rtx)
609 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
613 fputc (')', outfile);
618 /* Print an rtx on the current line of FILE. Initially indent IND
622 print_inline_rtx (FILE *outf, rtx x, int ind)
624 int oldsaw = sawclose;
625 int oldindent = indent;
635 /* Call this function from the debugger to see what X looks like. */
643 fprintf (stderr, "\n");
646 /* Count of rtx's to print with debug_rtx_list.
647 This global exists because gdb user defined commands have no arguments. */
649 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
651 /* Call this function to print list from X on.
653 N is a count of the rtx's to print. Positive values print from the specified
654 rtx on. Negative values print a window around the rtx.
655 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
658 debug_rtx_list (rtx x, int n)
663 count = n == 0 ? 1 : n < 0 ? -n : n;
665 /* If we are printing a window, back up to the start. */
668 for (i = count / 2; i > 0; i--)
670 if (PREV_INSN (x) == 0)
675 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
678 fprintf (stderr, "\n");
682 /* Call this function to print an rtx list from START to END inclusive. */
685 debug_rtx_range (rtx start, rtx end)
690 fprintf (stderr, "\n");
691 if (!start || start == end)
693 start = NEXT_INSN (start);
697 /* Call this function to search an rtx list to find one with insn uid UID,
698 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
699 The found insn is returned to enable further debugging analysis. */
702 debug_rtx_find (rtx x, int uid)
704 while (x != 0 && INSN_UID (x) != uid)
708 debug_rtx_list (x, debug_rtx_count);
713 fprintf (stderr, "insn uid %d not found\n", uid);
718 /* External entry point for printing a chain of insns
719 starting with RTX_FIRST onto file OUTF.
720 A blank line separates insns.
722 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
725 print_rtl (FILE *outf, rtx rtx_first)
734 fputs (print_rtx_head, outf);
735 fputs ("(nil)\n", outf);
738 switch (GET_CODE (rtx_first))
746 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
747 if (! flag_dump_unnumbered
748 || !NOTE_P (tmp_rtx) || NOTE_LINE_NUMBER (tmp_rtx) < 0)
750 fputs (print_rtx_head, outfile);
752 fprintf (outfile, "\n");
757 fputs (print_rtx_head, outfile);
758 print_rtx (rtx_first);
762 /* Like print_rtx, except specify a file. */
763 /* Return nonzero if we actually printed anything. */
766 print_rtl_single (FILE *outf, rtx x)
770 if (! flag_dump_unnumbered
771 || !NOTE_P (x) || NOTE_LINE_NUMBER (x) < 0)
773 fputs (print_rtx_head, outfile);
782 /* Like print_rtl except without all the detail; for example,
783 if RTX is a CONST_INT then print in decimal format. */
786 print_simple_rtl (FILE *outf, rtx x)