2 Copyright (C) 1987-2014 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This file is compiled twice: once for the generator programs,
21 once for the compiler. */
29 #include "coretypes.h"
33 /* These headers all define things which are not available in
34 generator programs. */
35 #ifndef GENERATOR_FILE
37 #include "print-tree.h"
39 #include "hard-reg-set.h"
40 #include "basic-block.h"
41 #include "diagnostic.h"
42 #include "tree-pretty-print.h"
44 #include "dumpfile.h" /* for dump_flags */
45 #include "dwarf2out.h"
50 static int sawclose = 0;
54 static bool in_call_function_usage;
56 static void print_rtx (const_rtx);
58 /* String printed at beginning of each RTL when it is dumped.
59 This string is set to ASM_COMMENT_START when the RTL is dumped in
60 the assembly output file. */
61 const char *print_rtx_head = "";
64 /* These are defined from the .opt file when not used in generator
67 /* Nonzero means suppress output of instruction numbers
69 This must be defined here so that programs like gencodes can be linked. */
70 int flag_dump_unnumbered = 0;
72 /* Nonzero means suppress output of instruction numbers for previous
73 and next insns in debugging dumps.
74 This must be defined here so that programs like gencodes can be linked. */
75 int flag_dump_unnumbered_links = 0;
78 /* Nonzero means use simplified format without flags, modes, etc. */
81 #ifndef GENERATOR_FILE
83 print_mem_expr (FILE *outfile, const_tree expr)
86 print_generic_expr (outfile, CONST_CAST_TREE (expr), dump_flags);
90 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
93 print_rtx (const_rtx in_rtx)
97 const char *format_ptr;
103 fputc (' ', outfile);
105 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
111 fputs ("(nil)", outfile);
115 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
117 fprintf (outfile, "(??? bad code %d\n%s%*s)", GET_CODE (in_rtx),
118 print_rtx_head, indent * 2, "");
123 is_insn = INSN_P (in_rtx);
125 /* Print name of expression code. */
126 if (flag_simple && CONST_INT_P (in_rtx))
127 fputc ('(', outfile);
129 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
133 if (RTX_FLAG (in_rtx, in_struct))
134 fputs ("/s", outfile);
136 if (RTX_FLAG (in_rtx, volatil))
137 fputs ("/v", outfile);
139 if (RTX_FLAG (in_rtx, unchanging))
140 fputs ("/u", outfile);
142 if (RTX_FLAG (in_rtx, frame_related))
143 fputs ("/f", outfile);
145 if (RTX_FLAG (in_rtx, jump))
146 fputs ("/j", outfile);
148 if (RTX_FLAG (in_rtx, call))
149 fputs ("/c", outfile);
151 if (RTX_FLAG (in_rtx, return_val))
152 fputs ("/i", outfile);
154 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
155 if ((GET_CODE (in_rtx) == EXPR_LIST
156 || GET_CODE (in_rtx) == INSN_LIST
157 || GET_CODE (in_rtx) == INT_LIST)
158 && (int)GET_MODE (in_rtx) < REG_NOTE_MAX
159 && !in_call_function_usage)
160 fprintf (outfile, ":%s",
161 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
163 /* For other rtl, print the mode if it's not VOID. */
164 else if (GET_MODE (in_rtx) != VOIDmode)
165 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
167 #ifndef GENERATOR_FILE
168 if (GET_CODE (in_rtx) == VAR_LOCATION)
170 if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST)
171 fputs (" <debug string placeholder>", outfile);
173 print_mem_expr (outfile, PAT_VAR_LOCATION_DECL (in_rtx));
174 fputc (' ', outfile);
175 print_rtx (PAT_VAR_LOCATION_LOC (in_rtx));
176 if (PAT_VAR_LOCATION_STATUS (in_rtx)
177 == VAR_INIT_STATUS_UNINITIALIZED)
178 fprintf (outfile, " [uninit]");
180 i = GET_RTX_LENGTH (VAR_LOCATION);
185 #ifndef GENERATOR_FILE
186 if (CONST_DOUBLE_AS_FLOAT_P (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 (" \"\"", outfile);
210 fprintf (outfile, " (\"%s\")", str);
214 /* 0 indicates a field for internal use that should not be printed.
215 An exception is the third field of a NOTE, where it indicates
216 that the field has several different valid contents. */
218 if (i == 1 && REG_P (in_rtx))
220 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
221 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
223 #ifndef GENERATOR_FILE
224 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
226 int flags = SYMBOL_REF_FLAGS (in_rtx);
228 fprintf (outfile, " [flags %#x]", flags);
230 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
232 tree decl = SYMBOL_REF_DECL (in_rtx);
234 print_node_brief (outfile, "", decl, dump_flags);
237 else if (i == 4 && NOTE_P (in_rtx))
239 switch (NOTE_KIND (in_rtx))
241 case NOTE_INSN_EH_REGION_BEG:
242 case NOTE_INSN_EH_REGION_END:
243 if (flag_dump_unnumbered)
244 fprintf (outfile, " #");
246 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
250 case NOTE_INSN_BLOCK_BEG:
251 case NOTE_INSN_BLOCK_END:
252 #ifndef GENERATOR_FILE
253 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
258 case NOTE_INSN_BASIC_BLOCK:
260 #ifndef GENERATOR_FILE
261 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
263 fprintf (outfile, " [bb %d]", bb->index);
268 case NOTE_INSN_DELETED_LABEL:
269 case NOTE_INSN_DELETED_DEBUG_LABEL:
271 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
273 fprintf (outfile, " (\"%s\")", label);
275 fprintf (outfile, " \"\"");
279 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
281 #ifndef GENERATOR_FILE
282 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
284 fprintf (outfile, " [bb %d]", bb->index);
289 case NOTE_INSN_VAR_LOCATION:
290 case NOTE_INSN_CALL_ARG_LOCATION:
291 #ifndef GENERATOR_FILE
292 fputc (' ', outfile);
293 print_rtx (NOTE_VAR_LOCATION (in_rtx));
298 #ifndef GENERATOR_FILE
299 fputc ('\n', outfile);
300 output_cfi_directive (outfile, NOTE_CFI (in_rtx));
301 fputc ('\t', outfile);
309 else if (i == 8 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL)
311 /* Output the JUMP_LABEL reference. */
312 fprintf (outfile, "\n%s%*s -> ", print_rtx_head, indent * 2, "");
313 if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN)
314 fprintf (outfile, "return");
315 else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN)
316 fprintf (outfile, "simple_return");
318 fprintf (outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx)));
320 else if (i == 0 && GET_CODE (in_rtx) == VALUE)
322 #ifndef GENERATOR_FILE
323 cselib_val *val = CSELIB_VAL_PTR (in_rtx);
325 fprintf (outfile, " %u:%u", val->uid, val->hash);
326 dump_addr (outfile, " @", in_rtx);
327 dump_addr (outfile, "/", (void*)val);
330 else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
332 #ifndef GENERATOR_FILE
333 fprintf (outfile, " D#%i",
334 DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
337 else if (i == 0 && GET_CODE (in_rtx) == ENTRY_VALUE)
341 fprintf (outfile, " ");
342 print_rtx (ENTRY_VALUE_EXP (in_rtx));
350 if (i == 7 && INSN_P (in_rtx))
351 /* Put REG_NOTES on their own line. */
352 fprintf (outfile, "\n%s%*s",
353 print_rtx_head, indent * 2, "");
355 fprintf (outfile, " ");
356 if (i == 8 && CALL_P (in_rtx))
358 in_call_function_usage = true;
359 print_rtx (XEXP (in_rtx, i));
360 in_call_function_usage = false;
363 print_rtx (XEXP (in_rtx, i));
372 fprintf (outfile, "\n%s%*s",
373 print_rtx_head, indent * 2, "");
376 fputs (" [", outfile);
377 if (NULL != XVEC (in_rtx, i))
380 if (XVECLEN (in_rtx, i))
383 for (j = 0; j < XVECLEN (in_rtx, i); j++)
384 print_rtx (XVECEXP (in_rtx, i, j));
389 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
391 fputs ("]", outfile);
398 fprintf (outfile, " ");
399 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
401 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
402 (unsigned HOST_WIDE_INT) XWINT (in_rtx, i));
406 if (i == 5 && INSN_P (in_rtx))
408 #ifndef GENERATOR_FILE
409 /* Pretty-print insn locations. Ignore scoping as it is mostly
410 redundant with line number information and do not print anything
411 when there is no location information available. */
412 if (INSN_LOCATION (in_rtx) && insn_file (in_rtx))
413 fprintf (outfile, " %s:%i", insn_file (in_rtx),
417 else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
419 #ifndef GENERATOR_FILE
420 if (ASM_OPERANDS_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
421 fprintf (outfile, " %s:%i",
422 LOCATION_FILE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
423 LOCATION_LINE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
426 else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT)
428 #ifndef GENERATOR_FILE
429 if (ASM_INPUT_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
430 fprintf (outfile, " %s:%i",
431 LOCATION_FILE (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
432 LOCATION_LINE (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
435 else if (i == 6 && NOTE_P (in_rtx))
437 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
438 other times often contains garbage from INSN->NOTE death. */
439 if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL
440 || NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_DEBUG_LABEL)
441 fprintf (outfile, " %d", XINT (in_rtx, i));
443 #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0
445 && GET_CODE (in_rtx) == UNSPEC_VOLATILE
446 && XINT (in_rtx, 1) >= 0
447 && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES)
448 fprintf (outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]);
450 #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0
452 && (GET_CODE (in_rtx) == UNSPEC
453 || GET_CODE (in_rtx) == UNSPEC_VOLATILE)
454 && XINT (in_rtx, 1) >= 0
455 && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES)
456 fprintf (outfile, " %s", unspec_strings[XINT (in_rtx, 1)]);
460 int value = XINT (in_rtx, i);
463 #ifndef GENERATOR_FILE
464 if (REG_P (in_rtx) && (unsigned) value < FIRST_PSEUDO_REGISTER)
465 fprintf (outfile, " %d %s", value, reg_names[value]);
466 else if (REG_P (in_rtx)
467 && (unsigned) value <= LAST_VIRTUAL_REGISTER)
469 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
470 fprintf (outfile, " %d virtual-incoming-args", value);
471 else if (value == VIRTUAL_STACK_VARS_REGNUM)
472 fprintf (outfile, " %d virtual-stack-vars", value);
473 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
474 fprintf (outfile, " %d virtual-stack-dynamic", value);
475 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
476 fprintf (outfile, " %d virtual-outgoing-args", value);
477 else if (value == VIRTUAL_CFA_REGNUM)
478 fprintf (outfile, " %d virtual-cfa", value);
479 else if (value == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM)
480 fprintf (outfile, " %d virtual-preferred-stack-boundary",
483 fprintf (outfile, " %d virtual-reg-%d", value,
484 value-FIRST_VIRTUAL_REGISTER);
488 if (flag_dump_unnumbered
489 && (is_insn || NOTE_P (in_rtx)))
490 fputc ('#', outfile);
492 fprintf (outfile, " %d", value);
494 #ifndef GENERATOR_FILE
495 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
497 fputs (" [", outfile);
498 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
499 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
500 if (REG_EXPR (in_rtx))
501 print_mem_expr (outfile, REG_EXPR (in_rtx));
503 if (REG_OFFSET (in_rtx))
504 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
505 REG_OFFSET (in_rtx));
506 fputs (" ]", outfile);
510 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
511 && XINT (in_rtx, i) >= 0
512 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
513 fprintf (outfile, " {%s}", name);
518 /* Print NOTE_INSN names rather than integer codes. */
521 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
526 if (XEXP (in_rtx, i) != NULL)
528 rtx sub = XEXP (in_rtx, i);
529 enum rtx_code subc = GET_CODE (sub);
531 if (GET_CODE (in_rtx) == LABEL_REF)
534 && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
536 if (flag_dump_unnumbered)
537 fprintf (outfile, " [# deleted]");
539 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
544 if (subc != CODE_LABEL)
548 if (flag_dump_unnumbered
549 || (flag_dump_unnumbered_links && (i == 1 || i == 2)
550 && (INSN_P (in_rtx) || NOTE_P (in_rtx)
551 || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
552 fputs (" #", outfile);
554 fprintf (outfile, " %d", INSN_UID (sub));
557 fputs (" 0", outfile);
562 #ifndef GENERATOR_FILE
563 if (i == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR)
564 print_mem_expr (outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx));
565 else if (i == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF)
566 print_mem_expr (outfile, DEBUG_PARAMETER_REF_DECL (in_rtx));
568 dump_addr (outfile, " ", XTREE (in_rtx, i));
573 fputs (" Unknown", outfile);
578 #ifndef GENERATOR_FILE
579 if (XBBDEF (in_rtx, i))
580 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
588 switch (GET_CODE (in_rtx))
590 #ifndef GENERATOR_FILE
592 if (__builtin_expect (final_insns_dump_p, false))
593 fprintf (outfile, " [");
595 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC,
596 (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
598 if (MEM_EXPR (in_rtx))
599 print_mem_expr (outfile, MEM_EXPR (in_rtx));
601 fputc (' ', outfile);
603 if (MEM_OFFSET_KNOWN_P (in_rtx))
604 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, MEM_OFFSET (in_rtx));
606 if (MEM_SIZE_KNOWN_P (in_rtx))
607 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC, MEM_SIZE (in_rtx));
609 if (MEM_ALIGN (in_rtx) != 1)
610 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
612 if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
613 fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
615 fputc (']', outfile);
619 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
623 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
625 fprintf (outfile, " %s", s);
627 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
629 fprintf (outfile, " [%s]", s);
635 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
636 switch (LABEL_KIND (in_rtx))
638 case LABEL_NORMAL: break;
639 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
640 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
641 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
642 default: gcc_unreachable ();
650 fputc (')', outfile);
654 /* Print an rtx on the current line of FILE. Initially indent IND
658 print_inline_rtx (FILE *outf, const_rtx x, int ind)
660 int oldsaw = sawclose;
661 int oldindent = indent;
671 /* Call this function from the debugger to see what X looks like. */
674 debug_rtx (const_rtx x)
679 fprintf (stderr, "\n");
685 debug (const rtx_def &ref)
691 debug (const rtx_def *ptr)
696 fprintf (stderr, "<nil>\n");
699 /* Count of rtx's to print with debug_rtx_list.
700 This global exists because gdb user defined commands have no arguments. */
702 DEBUG_VARIABLE int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
704 /* Call this function to print list from X on.
706 N is a count of the rtx's to print. Positive values print from the specified
707 rtx on. Negative values print a window around the rtx.
708 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
711 debug_rtx_list (const_rtx x, int n)
716 count = n == 0 ? 1 : n < 0 ? -n : n;
718 /* If we are printing a window, back up to the start. */
721 for (i = count / 2; i > 0; i--)
723 if (PREV_INSN (x) == 0)
728 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
731 fprintf (stderr, "\n");
735 /* Call this function to print an rtx list from START to END inclusive. */
738 debug_rtx_range (const_rtx start, const_rtx end)
743 fprintf (stderr, "\n");
744 if (!start || start == end)
746 start = NEXT_INSN (start);
750 /* Call this function to search an rtx list to find one with insn uid UID,
751 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
752 The found insn is returned to enable further debugging analysis. */
754 DEBUG_FUNCTION const_rtx
755 debug_rtx_find (const_rtx x, int uid)
757 while (x != 0 && INSN_UID (x) != uid)
761 debug_rtx_list (x, debug_rtx_count);
766 fprintf (stderr, "insn uid %d not found\n", uid);
771 /* External entry point for printing a chain of insns
772 starting with RTX_FIRST onto file OUTF.
773 A blank line separates insns.
775 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
778 print_rtl (FILE *outf, const_rtx rtx_first)
787 fputs (print_rtx_head, outf);
788 fputs ("(nil)\n", outf);
791 switch (GET_CODE (rtx_first))
798 case JUMP_TABLE_DATA:
800 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
802 fputs (print_rtx_head, outfile);
804 fprintf (outfile, "\n");
809 fputs (print_rtx_head, outfile);
810 print_rtx (rtx_first);
814 /* Like print_rtx, except specify a file. */
815 /* Return nonzero if we actually printed anything. */
818 print_rtl_single (FILE *outf, const_rtx x)
820 return print_rtl_single_with_indent (outf, x, 0);
823 /* Like print_rtl_single, except specify a file and indentation. */
826 print_rtl_single_with_indent (FILE *outf, const_rtx x, int ind)
828 int old_indent = indent;
829 char *s_indent = (char *) alloca ((size_t) ind + 1);
830 memset ((void *) s_indent, ' ', (size_t) ind);
831 s_indent[ind] = '\0';
836 fputs (s_indent, outfile);
837 fputs (print_rtx_head, outfile);
845 /* Like print_rtl except without all the detail; for example,
846 if RTX is a CONST_INT then print in decimal format. */
849 print_simple_rtl (FILE *outf, const_rtx x)