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%s%*s)", GET_CODE (in_rtx),
113 print_rtx_head, indent * 2, "");
118 is_insn = INSN_P (in_rtx);
120 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
121 in separate nodes and therefore have to handle them special here. */
123 && (is_insn || NOTE_P (in_rtx)
124 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
131 /* Print name of expression code. */
132 if (flag_simple && CONST_INT_P (in_rtx))
133 fputc ('(', outfile);
135 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
139 if (RTX_FLAG (in_rtx, in_struct))
140 fputs ("/s", outfile);
142 if (RTX_FLAG (in_rtx, volatil))
143 fputs ("/v", outfile);
145 if (RTX_FLAG (in_rtx, unchanging))
146 fputs ("/u", outfile);
148 if (RTX_FLAG (in_rtx, frame_related))
149 fputs ("/f", outfile);
151 if (RTX_FLAG (in_rtx, jump))
152 fputs ("/j", outfile);
154 if (RTX_FLAG (in_rtx, call))
155 fputs ("/c", outfile);
157 if (RTX_FLAG (in_rtx, return_val))
158 fputs ("/i", outfile);
160 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
161 if ((GET_CODE (in_rtx) == EXPR_LIST
162 || GET_CODE (in_rtx) == INSN_LIST)
163 && (int)GET_MODE (in_rtx) < REG_NOTE_MAX)
164 fprintf (outfile, ":%s",
165 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
167 /* For other rtl, print the mode if it's not VOID. */
168 else if (GET_MODE (in_rtx) != VOIDmode)
169 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
171 #ifndef GENERATOR_FILE
172 if (GET_CODE (in_rtx) == VAR_LOCATION)
174 if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST)
175 fputs (" <debug string placeholder>", outfile);
177 print_mem_expr (outfile, PAT_VAR_LOCATION_DECL (in_rtx));
178 fputc (' ', outfile);
179 print_rtx (PAT_VAR_LOCATION_LOC (in_rtx));
180 if (PAT_VAR_LOCATION_STATUS (in_rtx)
181 == VAR_INIT_STATUS_UNINITIALIZED)
182 fprintf (outfile, " [uninit]");
184 i = GET_RTX_LENGTH (VAR_LOCATION);
190 #ifndef GENERATOR_FILE
191 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
195 /* Get the format string and skip the first elements if we have handled
197 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
198 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
199 switch (*format_ptr++)
204 str = XTMPL (in_rtx, i);
209 str = XSTR (in_rtx, i);
213 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
217 fprintf (outfile, " (\\\"%s\\\")", str);
219 fprintf (outfile, " (\"%s\")", str);
224 /* 0 indicates a field for internal use that should not be printed.
225 An exception is the third field of a NOTE, where it indicates
226 that the field has several different valid contents. */
228 if (i == 1 && REG_P (in_rtx))
230 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
231 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
233 #ifndef GENERATOR_FILE
234 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
236 int flags = SYMBOL_REF_FLAGS (in_rtx);
238 fprintf (outfile, " [flags 0x%x]", flags);
240 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
242 tree decl = SYMBOL_REF_DECL (in_rtx);
244 print_node_brief (outfile, "", decl, 0);
247 else if (i == 4 && NOTE_P (in_rtx))
249 switch (NOTE_KIND (in_rtx))
251 case NOTE_INSN_EH_REGION_BEG:
252 case NOTE_INSN_EH_REGION_END:
253 if (flag_dump_unnumbered)
254 fprintf (outfile, " #");
256 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
260 case NOTE_INSN_BLOCK_BEG:
261 case NOTE_INSN_BLOCK_END:
262 #ifndef GENERATOR_FILE
263 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
268 case NOTE_INSN_BASIC_BLOCK:
270 #ifndef GENERATOR_FILE
271 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
273 fprintf (outfile, " [bb %d]", bb->index);
278 case NOTE_INSN_DELETED_LABEL:
280 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
282 fprintf (outfile, " (\"%s\")", label);
284 fprintf (outfile, " \"\"");
288 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
290 #ifndef GENERATOR_FILE
291 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
293 fprintf (outfile, " [bb %d]", bb->index);
298 case NOTE_INSN_VAR_LOCATION:
299 #ifndef GENERATOR_FILE
300 fputc (' ', outfile);
301 print_rtx (NOTE_VAR_LOCATION (in_rtx));
309 else if (i == 8 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL)
310 /* Output the JUMP_LABEL reference. */
311 fprintf (outfile, "\n%s%*s -> %d", print_rtx_head, indent * 2, "",
312 INSN_UID (JUMP_LABEL (in_rtx)));
313 else if (i == 0 && GET_CODE (in_rtx) == VALUE)
315 #ifndef GENERATOR_FILE
316 cselib_val *val = CSELIB_VAL_PTR (in_rtx);
318 fprintf (outfile, " %i", val->value);
319 dump_addr (outfile, " @", in_rtx);
320 dump_addr (outfile, "/", (void*)val);
323 else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
325 #ifndef GENERATOR_FILE
326 fprintf (outfile, " D#%i",
327 DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
336 fprintf (outfile, " ");
337 print_rtx (XEXP (in_rtx, i));
346 fprintf (outfile, "\n%s%*s",
347 print_rtx_head, indent * 2, "");
350 fputs (" [", outfile);
351 if (NULL != XVEC (in_rtx, i))
354 if (XVECLEN (in_rtx, i))
357 for (j = 0; j < XVECLEN (in_rtx, i); j++)
358 print_rtx (XVECEXP (in_rtx, i, j));
363 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
365 fputs ("]", outfile);
372 fprintf (outfile, " ");
373 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
375 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
376 (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
380 if (i == 4 && INSN_P (in_rtx))
382 #ifndef GENERATOR_FILE
383 /* Pretty-print insn locators. Ignore scoping as it is mostly
384 redundant with line number information and do not print anything
385 when there is no location information available. */
386 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
387 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
390 else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
392 #ifndef GENERATOR_FILE
393 fprintf (outfile, " %s:%i",
394 locator_file (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
395 locator_line (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
398 else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT)
400 #ifndef GENERATOR_FILE
401 fprintf (outfile, " %s:%i",
402 locator_file (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
403 locator_line (ASM_INPUT_SOURCE_LOCATION (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 if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
568 fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
570 fputc (']', outfile);
574 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
578 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
580 fprintf (outfile, " %s", s);
582 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
584 fprintf (outfile, " [%s]", s);
590 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
591 switch (LABEL_KIND (in_rtx))
593 case LABEL_NORMAL: break;
594 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
595 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
596 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
597 default: gcc_unreachable ();
606 && (is_insn || NOTE_P (in_rtx)
607 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
611 fputc (')', outfile);
616 /* Print an rtx on the current line of FILE. Initially indent IND
620 print_inline_rtx (FILE *outf, const_rtx x, int ind)
622 int oldsaw = sawclose;
623 int oldindent = indent;
633 /* Call this function from the debugger to see what X looks like. */
636 debug_rtx (const_rtx x)
641 fprintf (stderr, "\n");
644 /* Count of rtx's to print with debug_rtx_list.
645 This global exists because gdb user defined commands have no arguments. */
647 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
649 /* Call this function to print list from X on.
651 N is a count of the rtx's to print. Positive values print from the specified
652 rtx on. Negative values print a window around the rtx.
653 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
656 debug_rtx_list (const_rtx x, int n)
661 count = n == 0 ? 1 : n < 0 ? -n : n;
663 /* If we are printing a window, back up to the start. */
666 for (i = count / 2; i > 0; i--)
668 if (PREV_INSN (x) == 0)
673 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
676 fprintf (stderr, "\n");
680 /* Call this function to print an rtx list from START to END inclusive. */
683 debug_rtx_range (const_rtx start, const_rtx end)
688 fprintf (stderr, "\n");
689 if (!start || start == end)
691 start = NEXT_INSN (start);
695 /* Call this function to search an rtx list to find one with insn uid UID,
696 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
697 The found insn is returned to enable further debugging analysis. */
700 debug_rtx_find (const_rtx x, int uid)
702 while (x != 0 && INSN_UID (x) != uid)
706 debug_rtx_list (x, debug_rtx_count);
711 fprintf (stderr, "insn uid %d not found\n", uid);
716 /* External entry point for printing a chain of insns
717 starting with RTX_FIRST onto file OUTF.
718 A blank line separates insns.
720 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
723 print_rtl (FILE *outf, const_rtx rtx_first)
732 fputs (print_rtx_head, outf);
733 fputs ("(nil)\n", outf);
736 switch (GET_CODE (rtx_first))
744 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
746 fputs (print_rtx_head, outfile);
748 fprintf (outfile, "\n");
753 fputs (print_rtx_head, outfile);
754 print_rtx (rtx_first);
758 /* Like print_rtx, except specify a file. */
759 /* Return nonzero if we actually printed anything. */
762 print_rtl_single (FILE *outf, const_rtx x)
766 fputs (print_rtx_head, outfile);
773 /* Like print_rtl except without all the detail; for example,
774 if RTX is a CONST_INT then print in decimal format. */
777 print_simple_rtl (FILE *outf, const_rtx x)