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_mem_expr (FILE *outfile, tree expr)
73 if (TREE_CODE (expr) == COMPONENT_REF)
75 if (TREE_OPERAND (expr, 0))
76 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
78 fputs (" <variable>", outfile);
79 if (DECL_NAME (TREE_OPERAND (expr, 1)))
80 fprintf (outfile, ".%s",
81 IDENTIFIER_POINTER (DECL_NAME (TREE_OPERAND (expr, 1))));
83 else if (TREE_CODE (expr) == INDIRECT_REF)
85 fputs (" (*", outfile);
86 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
89 else if (DECL_NAME (expr))
90 fprintf (outfile, " %s", IDENTIFIER_POINTER (DECL_NAME (expr)));
91 else if (TREE_CODE (expr) == RESULT_DECL)
92 fputs (" <result>", outfile);
94 fputs (" <anonymous>", outfile);
98 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
101 print_rtx (rtx in_rtx)
105 const char *format_ptr;
111 fputc (' ', outfile);
113 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
119 fputs ("(nil)", outfile);
123 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
125 fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
130 is_insn = INSN_P (in_rtx);
132 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
133 in separate nodes and therefore have to handle them special here. */
135 && (is_insn || NOTE_P (in_rtx)
136 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
143 /* Print name of expression code. */
144 if (flag_simple && GET_CODE (in_rtx) == CONST_INT)
145 fputc ('(', outfile);
147 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
151 if (RTX_FLAG (in_rtx, in_struct))
152 fputs ("/s", outfile);
154 if (RTX_FLAG (in_rtx, volatil))
155 fputs ("/v", outfile);
157 if (RTX_FLAG (in_rtx, unchanging))
158 fputs ("/u", outfile);
160 if (RTX_FLAG (in_rtx, frame_related))
161 fputs ("/f", outfile);
163 if (RTX_FLAG (in_rtx, jump))
164 fputs ("/j", outfile);
166 if (RTX_FLAG (in_rtx, call))
167 fputs ("/c", outfile);
169 if (RTX_FLAG (in_rtx, return_val))
170 fputs ("/i", outfile);
172 if (GET_MODE (in_rtx) != VOIDmode)
174 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
175 if (GET_CODE (in_rtx) == EXPR_LIST
176 || GET_CODE (in_rtx) == INSN_LIST)
177 fprintf (outfile, ":%s",
178 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
180 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
185 #ifndef GENERATOR_FILE
186 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
190 /* Get the format string and skip the first elements if we have handled
192 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
193 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
194 switch (*format_ptr++)
199 str = XTMPL (in_rtx, i);
204 str = XSTR (in_rtx, i);
208 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
212 fprintf (outfile, " (\\\"%s\\\")", str);
214 fprintf (outfile, " (\"%s\")", str);
219 /* 0 indicates a field for internal use that should not be printed.
220 An exception is the third field of a NOTE, where it indicates
221 that the field has several different valid contents. */
223 if (i == 1 && REG_P (in_rtx))
225 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
226 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
228 #ifndef GENERATOR_FILE
229 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
231 int flags = SYMBOL_REF_FLAGS (in_rtx);
233 fprintf (outfile, " [flags 0x%x]", flags);
235 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
237 tree decl = SYMBOL_REF_DECL (in_rtx);
239 print_node_brief (outfile, "", decl, 0);
242 else if (i == 4 && NOTE_P (in_rtx))
244 switch (NOTE_LINE_NUMBER (in_rtx))
246 case NOTE_INSN_EH_REGION_BEG:
247 case NOTE_INSN_EH_REGION_END:
248 if (flag_dump_unnumbered)
249 fprintf (outfile, " #");
251 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
255 case NOTE_INSN_BLOCK_BEG:
256 case NOTE_INSN_BLOCK_END:
257 fprintf (outfile, " ");
258 if (flag_dump_unnumbered)
259 fprintf (outfile, "#");
261 fprintf (outfile, HOST_PTR_PRINTF,
262 (char *) NOTE_BLOCK (in_rtx));
266 case NOTE_INSN_BASIC_BLOCK:
268 #ifndef GENERATOR_FILE
269 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
271 fprintf (outfile, " [bb %d]", bb->index);
276 case NOTE_INSN_EXPECTED_VALUE:
279 fprintf (outfile, " ");
280 print_rtx (NOTE_EXPECTED_VALUE (in_rtx));
284 case NOTE_INSN_DELETED_LABEL:
286 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
288 fprintf (outfile, " (\"%s\")", label);
290 fprintf (outfile, " \"\"");
294 case NOTE_INSN_UNLIKELY_EXECUTED_CODE:
296 #ifndef GENERATOR_FILE
297 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
299 fprintf (outfile, " [bb %d]", bb->index);
304 case NOTE_INSN_VAR_LOCATION:
305 #ifndef GENERATOR_FILE
306 fprintf (outfile, " (");
307 print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
308 fprintf (outfile, " ");
309 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
310 fprintf (outfile, ")");
316 const char * const str = X0STR (in_rtx, i);
318 if (NOTE_LINE_NUMBER (in_rtx) < 0)
321 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
325 fprintf (outfile, " (\\\"%s\\\")", str);
327 fprintf (outfile, " (\"%s\")", str);
339 fprintf (outfile, " ");
340 print_rtx (XEXP (in_rtx, i));
349 fprintf (outfile, "\n%s%*s",
350 print_rtx_head, indent * 2, "");
353 fputs (" [", outfile);
354 if (NULL != XVEC (in_rtx, i))
357 if (XVECLEN (in_rtx, i))
360 for (j = 0; j < XVECLEN (in_rtx, i); j++)
361 print_rtx (XVECEXP (in_rtx, i, j));
366 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
368 fputs ("]", outfile);
375 fprintf (outfile, " ");
376 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
378 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
383 if (i == 4 && INSN_P (in_rtx))
385 #ifndef GENERATOR_FILE
386 /* Pretty-print insn locators. Ignore scoping as it is mostly
387 redundant with line number information and do not print anything
388 when there is no location information available. */
389 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
390 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
393 else if (i == 6 && NOTE_P (in_rtx))
395 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
396 other times often contains garbage from INSN->NOTE death. */
397 if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)
398 fprintf (outfile, " %d", XINT (in_rtx, i));
402 int value = XINT (in_rtx, i);
405 #ifndef GENERATOR_FILE
406 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
407 fprintf (outfile, " %d %s", REGNO (in_rtx),
408 reg_names[REGNO (in_rtx)]);
409 else if (REG_P (in_rtx)
410 && value <= LAST_VIRTUAL_REGISTER)
412 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
413 fprintf (outfile, " %d virtual-incoming-args", value);
414 else if (value == VIRTUAL_STACK_VARS_REGNUM)
415 fprintf (outfile, " %d virtual-stack-vars", value);
416 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
417 fprintf (outfile, " %d virtual-stack-dynamic", value);
418 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
419 fprintf (outfile, " %d virtual-outgoing-args", value);
420 else if (value == VIRTUAL_CFA_REGNUM)
421 fprintf (outfile, " %d virtual-cfa", value);
423 fprintf (outfile, " %d virtual-reg-%d", value,
424 value-FIRST_VIRTUAL_REGISTER);
428 if (flag_dump_unnumbered
429 && (is_insn || NOTE_P (in_rtx)))
430 fputc ('#', outfile);
432 fprintf (outfile, " %d", value);
434 #ifndef GENERATOR_FILE
435 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
437 fputs (" [", outfile);
438 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
439 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
440 if (REG_EXPR (in_rtx))
441 print_mem_expr (outfile, REG_EXPR (in_rtx));
443 if (REG_OFFSET (in_rtx))
444 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
445 REG_OFFSET (in_rtx));
446 fputs (" ]", outfile);
450 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
451 && XINT (in_rtx, i) >= 0
452 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
453 fprintf (outfile, " {%s}", name);
458 /* Print NOTE_INSN names rather than integer codes. */
461 if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS
462 && XINT (in_rtx, i) < (int) NOTE_INSN_MAX)
463 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
465 fprintf (outfile, " %d", XINT (in_rtx, i));
470 if (XEXP (in_rtx, i) != NULL)
472 rtx sub = XEXP (in_rtx, i);
473 enum rtx_code subc = GET_CODE (sub);
475 if (GET_CODE (in_rtx) == LABEL_REF)
478 && NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)
480 if (flag_dump_unnumbered)
481 fprintf (outfile, " [# deleted]");
483 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
488 if (subc != CODE_LABEL)
492 if (flag_dump_unnumbered)
493 fputs (" #", outfile);
495 fprintf (outfile, " %d", INSN_UID (sub));
498 fputs (" 0", outfile);
503 #ifndef GENERATOR_FILE
504 if (XBITMAP (in_rtx, i) == NULL)
505 fputs (" {null}", outfile);
507 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
513 fprintf (outfile, " " HOST_PTR_PRINTF, (void *) XTREE (in_rtx, i));
517 fputs (" Unknown", outfile);
522 #ifndef GENERATOR_FILE
523 if (XBBDEF (in_rtx, i))
524 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
530 "switch format wrong in rtl.print_rtx(). format was: %c.\n",
535 switch (GET_CODE (in_rtx))
537 #ifndef GENERATOR_FILE
539 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));
541 if (MEM_EXPR (in_rtx))
542 print_mem_expr (outfile, MEM_EXPR (in_rtx));
544 if (MEM_OFFSET (in_rtx))
545 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
546 INTVAL (MEM_OFFSET (in_rtx)));
548 if (MEM_SIZE (in_rtx))
549 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
550 INTVAL (MEM_SIZE (in_rtx)));
552 if (MEM_ALIGN (in_rtx) != 1)
553 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
555 fputc (']', outfile);
559 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
563 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
565 fprintf (outfile, " %s", s);
567 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
569 fprintf (outfile, " [%s]", s);
575 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
576 switch (LABEL_KIND (in_rtx))
578 case LABEL_NORMAL: break;
579 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
580 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
581 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
591 && (is_insn || NOTE_P (in_rtx)
592 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
596 fputc (')', outfile);
601 /* Print an rtx on the current line of FILE. Initially indent IND
605 print_inline_rtx (FILE *outf, rtx x, int ind)
607 int oldsaw = sawclose;
608 int oldindent = indent;
618 /* Call this function from the debugger to see what X looks like. */
626 fprintf (stderr, "\n");
629 /* Count of rtx's to print with debug_rtx_list.
630 This global exists because gdb user defined commands have no arguments. */
632 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
634 /* Call this function to print list from X on.
636 N is a count of the rtx's to print. Positive values print from the specified
637 rtx on. Negative values print a window around the rtx.
638 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
641 debug_rtx_list (rtx x, int n)
646 count = n == 0 ? 1 : n < 0 ? -n : n;
648 /* If we are printing a window, back up to the start. */
651 for (i = count / 2; i > 0; i--)
653 if (PREV_INSN (x) == 0)
658 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
661 fprintf (stderr, "\n");
665 /* Call this function to print an rtx list from START to END inclusive. */
668 debug_rtx_range (rtx start, rtx end)
673 fprintf (stderr, "\n");
674 if (!start || start == end)
676 start = NEXT_INSN (start);
680 /* Call this function to search an rtx list to find one with insn uid UID,
681 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
682 The found insn is returned to enable further debugging analysis. */
685 debug_rtx_find (rtx x, int uid)
687 while (x != 0 && INSN_UID (x) != uid)
691 debug_rtx_list (x, debug_rtx_count);
696 fprintf (stderr, "insn uid %d not found\n", uid);
701 /* External entry point for printing a chain of insns
702 starting with RTX_FIRST onto file OUTF.
703 A blank line separates insns.
705 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
708 print_rtl (FILE *outf, rtx rtx_first)
717 fputs (print_rtx_head, outf);
718 fputs ("(nil)\n", outf);
721 switch (GET_CODE (rtx_first))
729 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
730 if (! flag_dump_unnumbered
731 || !NOTE_P (tmp_rtx) || NOTE_LINE_NUMBER (tmp_rtx) < 0)
733 fputs (print_rtx_head, outfile);
735 fprintf (outfile, "\n");
740 fputs (print_rtx_head, outfile);
741 print_rtx (rtx_first);
745 /* Like print_rtx, except specify a file. */
746 /* Return nonzero if we actually printed anything. */
749 print_rtl_single (FILE *outf, rtx x)
753 if (! flag_dump_unnumbered
754 || !NOTE_P (x) || NOTE_LINE_NUMBER (x) < 0)
756 fputs (print_rtx_head, outfile);
765 /* Like print_rtl except without all the detail; for example,
766 if RTX is a CONST_INT then print in decimal format. */
769 print_simple_rtl (FILE *outf, rtx x)