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"
43 #include "diagnostic.h"
49 static int sawclose = 0;
53 static void print_rtx (const_rtx);
55 /* String printed at beginning of each RTL when it is dumped.
56 This string is set to ASM_COMMENT_START when the RTL is dumped in
57 the assembly output file. */
58 const char *print_rtx_head = "";
60 /* Nonzero means suppress output of instruction numbers
62 This must be defined here so that programs like gencodes can be linked. */
63 int flag_dump_unnumbered = 0;
65 /* Nonzero means suppress output of instruction numbers for previous
66 and next insns in debugging dumps.
67 This must be defined here so that programs like gencodes can be linked. */
68 int flag_dump_unnumbered_links = 0;
70 /* Nonzero means use simplified format without flags, modes, etc. */
73 /* Nonzero if we are dumping graphical description. */
76 #ifndef GENERATOR_FILE
78 print_mem_expr (FILE *outfile, const_tree expr)
81 print_generic_expr (outfile, CONST_CAST_TREE (expr), 0);
85 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
88 print_rtx (const_rtx in_rtx)
92 const char *format_ptr;
100 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
106 fputs ("(nil)", outfile);
110 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
112 fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
117 is_insn = INSN_P (in_rtx);
119 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
120 in separate nodes and therefore have to handle them special here. */
122 && (is_insn || NOTE_P (in_rtx)
123 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
130 /* Print name of expression code. */
131 if (flag_simple && CONST_INT_P (in_rtx))
132 fputc ('(', outfile);
134 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
138 if (RTX_FLAG (in_rtx, in_struct))
139 fputs ("/s", outfile);
141 if (RTX_FLAG (in_rtx, volatil))
142 fputs ("/v", outfile);
144 if (RTX_FLAG (in_rtx, unchanging))
145 fputs ("/u", outfile);
147 if (RTX_FLAG (in_rtx, frame_related))
148 fputs ("/f", outfile);
150 if (RTX_FLAG (in_rtx, jump))
151 fputs ("/j", outfile);
153 if (RTX_FLAG (in_rtx, call))
154 fputs ("/c", outfile);
156 if (RTX_FLAG (in_rtx, return_val))
157 fputs ("/i", outfile);
159 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
160 if ((GET_CODE (in_rtx) == EXPR_LIST
161 || GET_CODE (in_rtx) == INSN_LIST)
162 && (int)GET_MODE (in_rtx) < REG_NOTE_MAX)
163 fprintf (outfile, ":%s",
164 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
166 /* For other rtl, print the mode if it's not VOID. */
167 else if (GET_MODE (in_rtx) != VOIDmode)
168 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
170 #ifndef GENERATOR_FILE
171 if (GET_CODE (in_rtx) == VAR_LOCATION)
173 if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST)
174 fputs (" <debug string placeholder>", outfile);
176 print_mem_expr (outfile, PAT_VAR_LOCATION_DECL (in_rtx));
177 fputc (' ', outfile);
178 print_rtx (PAT_VAR_LOCATION_LOC (in_rtx));
179 if (PAT_VAR_LOCATION_STATUS (in_rtx)
180 == VAR_INIT_STATUS_UNINITIALIZED)
181 fprintf (outfile, " [uninit]");
183 i = GET_RTX_LENGTH (VAR_LOCATION);
189 #ifndef GENERATOR_FILE
190 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
194 /* Get the format string and skip the first elements if we have handled
196 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
197 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
198 switch (*format_ptr++)
203 str = XTMPL (in_rtx, i);
208 str = XSTR (in_rtx, i);
212 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
216 fprintf (outfile, " (\\\"%s\\\")", str);
218 fprintf (outfile, " (\"%s\")", str);
223 /* 0 indicates a field for internal use that should not be printed.
224 An exception is the third field of a NOTE, where it indicates
225 that the field has several different valid contents. */
227 if (i == 1 && REG_P (in_rtx))
229 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
230 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
232 #ifndef GENERATOR_FILE
233 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
235 int flags = SYMBOL_REF_FLAGS (in_rtx);
237 fprintf (outfile, " [flags 0x%x]", flags);
239 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
241 tree decl = SYMBOL_REF_DECL (in_rtx);
243 print_node_brief (outfile, "", decl, 0);
246 else if (i == 4 && NOTE_P (in_rtx))
248 switch (NOTE_KIND (in_rtx))
250 case NOTE_INSN_EH_REGION_BEG:
251 case NOTE_INSN_EH_REGION_END:
252 if (flag_dump_unnumbered)
253 fprintf (outfile, " #");
255 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
259 case NOTE_INSN_BLOCK_BEG:
260 case NOTE_INSN_BLOCK_END:
261 #ifndef GENERATOR_FILE
262 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
267 case NOTE_INSN_BASIC_BLOCK:
269 #ifndef GENERATOR_FILE
270 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
272 fprintf (outfile, " [bb %d]", bb->index);
277 case NOTE_INSN_DELETED_LABEL:
279 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
281 fprintf (outfile, " (\"%s\")", label);
283 fprintf (outfile, " \"\"");
287 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
289 #ifndef GENERATOR_FILE
290 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
292 fprintf (outfile, " [bb %d]", bb->index);
297 case NOTE_INSN_VAR_LOCATION:
298 #ifndef GENERATOR_FILE
299 fputc (' ', outfile);
300 print_rtx (NOTE_VAR_LOCATION (in_rtx));
308 else if (i == 8 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL)
309 /* Output the JUMP_LABEL reference. */
310 fprintf (outfile, "\n -> %d", INSN_UID (JUMP_LABEL (in_rtx)));
311 else if (i == 0 && GET_CODE (in_rtx) == VALUE)
313 #ifndef GENERATOR_FILE
314 cselib_val *val = CSELIB_VAL_PTR (in_rtx);
316 fprintf (outfile, " %i", val->value);
317 dump_addr (outfile, " @", in_rtx);
318 dump_addr (outfile, "/", (void*)val);
321 else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
323 #ifndef GENERATOR_FILE
324 fprintf (outfile, " D#%i",
325 DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
334 fprintf (outfile, " ");
335 print_rtx (XEXP (in_rtx, i));
344 fprintf (outfile, "\n%s%*s",
345 print_rtx_head, indent * 2, "");
348 fputs (" [", outfile);
349 if (NULL != XVEC (in_rtx, i))
352 if (XVECLEN (in_rtx, i))
355 for (j = 0; j < XVECLEN (in_rtx, i); j++)
356 print_rtx (XVECEXP (in_rtx, i, j));
361 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
363 fputs ("]", outfile);
370 fprintf (outfile, " ");
371 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
373 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
374 (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
378 if (i == 4 && INSN_P (in_rtx))
380 #ifndef GENERATOR_FILE
381 /* Pretty-print insn locators. Ignore scoping as it is mostly
382 redundant with line number information and do not print anything
383 when there is no location information available. */
384 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
385 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
388 else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
390 #ifndef GENERATOR_FILE
391 fprintf (outfile, " %s:%i",
392 locator_file (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
393 locator_line (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
396 else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT)
398 #ifndef GENERATOR_FILE
399 fprintf (outfile, " %s:%i",
400 locator_file (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
401 locator_line (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
404 else if (i == 6 && NOTE_P (in_rtx))
406 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
407 other times often contains garbage from INSN->NOTE death. */
408 if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL)
409 fprintf (outfile, " %d", XINT (in_rtx, i));
413 int value = XINT (in_rtx, i);
416 #ifndef GENERATOR_FILE
417 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
418 fprintf (outfile, " %d %s", REGNO (in_rtx),
419 reg_names[REGNO (in_rtx)]);
420 else if (REG_P (in_rtx)
421 && value <= LAST_VIRTUAL_REGISTER)
423 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
424 fprintf (outfile, " %d virtual-incoming-args", value);
425 else if (value == VIRTUAL_STACK_VARS_REGNUM)
426 fprintf (outfile, " %d virtual-stack-vars", value);
427 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
428 fprintf (outfile, " %d virtual-stack-dynamic", value);
429 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
430 fprintf (outfile, " %d virtual-outgoing-args", value);
431 else if (value == VIRTUAL_CFA_REGNUM)
432 fprintf (outfile, " %d virtual-cfa", value);
434 fprintf (outfile, " %d virtual-reg-%d", value,
435 value-FIRST_VIRTUAL_REGISTER);
439 if (flag_dump_unnumbered
440 && (is_insn || NOTE_P (in_rtx)))
441 fputc ('#', outfile);
443 fprintf (outfile, " %d", value);
445 #ifndef GENERATOR_FILE
446 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
448 fputs (" [", outfile);
449 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
450 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
451 if (REG_EXPR (in_rtx))
452 print_mem_expr (outfile, REG_EXPR (in_rtx));
454 if (REG_OFFSET (in_rtx))
455 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
456 REG_OFFSET (in_rtx));
457 fputs (" ]", outfile);
461 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
462 && XINT (in_rtx, i) >= 0
463 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
464 fprintf (outfile, " {%s}", name);
469 /* Print NOTE_INSN names rather than integer codes. */
472 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
477 if (XEXP (in_rtx, i) != NULL)
479 rtx sub = XEXP (in_rtx, i);
480 enum rtx_code subc = GET_CODE (sub);
482 if (GET_CODE (in_rtx) == LABEL_REF)
485 && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
487 if (flag_dump_unnumbered)
488 fprintf (outfile, " [# deleted]");
490 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
495 if (subc != CODE_LABEL)
499 if (flag_dump_unnumbered
500 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
501 && (INSN_P (in_rtx) || NOTE_P (in_rtx)
502 || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
503 fputs (" #", outfile);
505 fprintf (outfile, " %d", INSN_UID (sub));
508 fputs (" 0", outfile);
513 #ifndef GENERATOR_FILE
514 if (XBITMAP (in_rtx, i) == NULL)
515 fputs (" {null}", outfile);
517 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
523 #ifndef GENERATOR_FILE
524 dump_addr (outfile, " ", XTREE (in_rtx, i));
529 fputs (" Unknown", outfile);
534 #ifndef GENERATOR_FILE
535 if (XBBDEF (in_rtx, i))
536 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
544 switch (GET_CODE (in_rtx))
546 #ifndef GENERATOR_FILE
548 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
549 (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
551 if (MEM_EXPR (in_rtx))
552 print_mem_expr (outfile, MEM_EXPR (in_rtx));
554 if (MEM_OFFSET (in_rtx))
555 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
556 INTVAL (MEM_OFFSET (in_rtx)));
558 if (MEM_SIZE (in_rtx))
559 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
560 INTVAL (MEM_SIZE (in_rtx)));
562 if (MEM_ALIGN (in_rtx) != 1)
563 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
565 fputc (']', outfile);
569 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
573 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
575 fprintf (outfile, " %s", s);
577 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
579 fprintf (outfile, " [%s]", s);
585 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
586 switch (LABEL_KIND (in_rtx))
588 case LABEL_NORMAL: break;
589 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
590 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
591 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
592 default: gcc_unreachable ();
601 && (is_insn || NOTE_P (in_rtx)
602 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
606 fputc (')', outfile);
611 /* Print an rtx on the current line of FILE. Initially indent IND
615 print_inline_rtx (FILE *outf, const_rtx x, int ind)
617 int oldsaw = sawclose;
618 int oldindent = indent;
628 /* Call this function from the debugger to see what X looks like. */
631 debug_rtx (const_rtx x)
636 fprintf (stderr, "\n");
639 /* Count of rtx's to print with debug_rtx_list.
640 This global exists because gdb user defined commands have no arguments. */
642 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
644 /* Call this function to print list from X on.
646 N is a count of the rtx's to print. Positive values print from the specified
647 rtx on. Negative values print a window around the rtx.
648 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
651 debug_rtx_list (const_rtx x, int n)
656 count = n == 0 ? 1 : n < 0 ? -n : n;
658 /* If we are printing a window, back up to the start. */
661 for (i = count / 2; i > 0; i--)
663 if (PREV_INSN (x) == 0)
668 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
671 fprintf (stderr, "\n");
675 /* Call this function to print an rtx list from START to END inclusive. */
678 debug_rtx_range (const_rtx start, const_rtx end)
683 fprintf (stderr, "\n");
684 if (!start || start == end)
686 start = NEXT_INSN (start);
690 /* Call this function to search an rtx list to find one with insn uid UID,
691 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
692 The found insn is returned to enable further debugging analysis. */
695 debug_rtx_find (const_rtx x, int uid)
697 while (x != 0 && INSN_UID (x) != uid)
701 debug_rtx_list (x, debug_rtx_count);
706 fprintf (stderr, "insn uid %d not found\n", uid);
711 /* External entry point for printing a chain of insns
712 starting with RTX_FIRST onto file OUTF.
713 A blank line separates insns.
715 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
718 print_rtl (FILE *outf, const_rtx rtx_first)
727 fputs (print_rtx_head, outf);
728 fputs ("(nil)\n", outf);
731 switch (GET_CODE (rtx_first))
739 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
741 fputs (print_rtx_head, outfile);
743 fprintf (outfile, "\n");
748 fputs (print_rtx_head, outfile);
749 print_rtx (rtx_first);
753 /* Like print_rtx, except specify a file. */
754 /* Return nonzero if we actually printed anything. */
757 print_rtl_single (FILE *outf, const_rtx x)
761 fputs (print_rtx_head, outfile);
768 /* Like print_rtl except without all the detail; for example,
769 if RTX is a CONST_INT then print in decimal format. */
772 print_simple_rtl (FILE *outf, const_rtx x)