typeck.c (cp_truthvalue_conversion): Add tsubst_flags_t parameter and use it in calls...
[official-gcc.git] / gcc / print-rtl.c
blobb0ee30010b22f183149016e42c95117129fc46b1
1 /* Print RTL for GCC.
2 Copyright (C) 1987-2019 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
9 version.
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
14 for more details.
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. */
22 #ifdef GENERATOR_FILE
23 #include "bconfig.h"
24 #else
25 #include "config.h"
26 #endif
28 #include "system.h"
29 #include "coretypes.h"
30 #include "tm.h"
31 #include "rtl.h"
33 /* These headers all define things which are not available in
34 generator programs. */
35 #ifndef GENERATOR_FILE
36 #include "alias.h"
37 #include "tree.h"
38 #include "basic-block.h"
39 #include "print-tree.h"
40 #include "flags.h"
41 #include "predict.h"
42 #include "function.h"
43 #include "cfg.h"
44 #include "basic-block.h"
45 #include "diagnostic.h"
46 #include "tree-pretty-print.h"
47 #include "alloc-pool.h"
48 #include "cselib.h"
49 #include "dumpfile.h" /* for dump_flags */
50 #include "dwarf2out.h"
51 #include "pretty-print.h"
52 #endif
54 #include "print-rtl.h"
55 #include "rtl-iter.h"
57 /* Disable warnings about quoting issues in the pp_xxx calls below
58 that (intentionally) don't follow GCC diagnostic conventions. */
59 #if __GNUC__ >= 10
60 # pragma GCC diagnostic push
61 # pragma GCC diagnostic ignored "-Wformat-diag"
62 #endif
64 /* String printed at beginning of each RTL when it is dumped.
65 This string is set to ASM_COMMENT_START when the RTL is dumped in
66 the assembly output file. */
67 const char *print_rtx_head = "";
69 #ifdef GENERATOR_FILE
70 /* These are defined from the .opt file when not used in generator
71 programs. */
73 /* Nonzero means suppress output of instruction numbers
74 in debugging dumps.
75 This must be defined here so that programs like gencodes can be linked. */
76 int flag_dump_unnumbered = 0;
78 /* Nonzero means suppress output of instruction numbers for previous
79 and next insns in debugging dumps.
80 This must be defined here so that programs like gencodes can be linked. */
81 int flag_dump_unnumbered_links = 0;
82 #endif
84 /* Constructor for rtx_writer. */
86 rtx_writer::rtx_writer (FILE *outf, int ind, bool simple, bool compact,
87 rtx_reuse_manager *reuse_manager)
88 : m_outfile (outf), m_sawclose (0), m_indent (ind),
89 m_in_call_function_usage (false), m_simple (simple), m_compact (compact),
90 m_rtx_reuse_manager (reuse_manager)
94 #ifndef GENERATOR_FILE
96 /* rtx_reuse_manager's ctor. */
98 rtx_reuse_manager::rtx_reuse_manager ()
99 : m_next_id (0)
103 /* Determine if X is of a kind suitable for dumping via reuse_rtx. */
105 static bool
106 uses_rtx_reuse_p (const_rtx x)
108 if (x == NULL)
109 return false;
111 switch (GET_CODE (x))
113 case DEBUG_EXPR:
114 case VALUE:
115 case SCRATCH:
116 return true;
118 /* We don't use reuse_rtx for consts. */
119 CASE_CONST_UNIQUE:
120 default:
121 return false;
125 /* Traverse X and its descendents, determining if we see any rtx more than
126 once. Any rtx suitable for "reuse_rtx" that is seen more than once is
127 assigned an ID. */
129 void
130 rtx_reuse_manager::preprocess (const_rtx x)
132 subrtx_iterator::array_type array;
133 FOR_EACH_SUBRTX (iter, array, x, NONCONST)
134 if (uses_rtx_reuse_p (*iter))
136 if (int *count = m_rtx_occurrence_count.get (*iter))
138 if (*(count++) == 1)
139 m_rtx_reuse_ids.put (*iter, m_next_id++);
141 else
142 m_rtx_occurrence_count.put (*iter, 1);
146 /* Return true iff X has been assigned a reuse ID. If it has,
147 and OUT is non-NULL, then write the reuse ID to *OUT. */
149 bool
150 rtx_reuse_manager::has_reuse_id (const_rtx x, int *out)
152 int *id = m_rtx_reuse_ids.get (x);
153 if (id)
155 if (out)
156 *out = *id;
157 return true;
159 else
160 return false;
163 /* Determine if set_seen_def has been called for the given reuse ID. */
165 bool
166 rtx_reuse_manager::seen_def_p (int reuse_id)
168 return bitmap_bit_p (m_defs_seen, reuse_id);
171 /* Record that the definition of the given reuse ID has been seen. */
173 void
174 rtx_reuse_manager::set_seen_def (int reuse_id)
176 bitmap_set_bit (m_defs_seen, reuse_id);
179 #endif /* #ifndef GENERATOR_FILE */
181 #ifndef GENERATOR_FILE
182 void
183 print_mem_expr (FILE *outfile, const_tree expr)
185 fputc (' ', outfile);
186 print_generic_expr (outfile, CONST_CAST_TREE (expr), dump_flags);
188 #endif
190 /* Print X to FILE. */
192 static void
193 print_poly_int (FILE *file, poly_int64 x)
195 HOST_WIDE_INT const_x;
196 if (x.is_constant (&const_x))
197 fprintf (file, HOST_WIDE_INT_PRINT_DEC, const_x);
198 else
200 fprintf (file, "[" HOST_WIDE_INT_PRINT_DEC, x.coeffs[0]);
201 for (int i = 1; i < NUM_POLY_INT_COEFFS; ++i)
202 fprintf (file, ", " HOST_WIDE_INT_PRINT_DEC, x.coeffs[i]);
203 fprintf (file, "]");
207 /* Subroutine of print_rtx_operand for handling code '0'.
208 0 indicates a field for internal use that should not be printed.
209 However there are various special cases, such as the third field
210 of a NOTE, where it indicates that the field has several different
211 valid contents. */
213 void
214 rtx_writer::print_rtx_operand_code_0 (const_rtx in_rtx ATTRIBUTE_UNUSED,
215 int idx ATTRIBUTE_UNUSED)
217 #ifndef GENERATOR_FILE
218 if (idx == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
220 int flags = SYMBOL_REF_FLAGS (in_rtx);
221 if (flags)
222 fprintf (m_outfile, " [flags %#x]", flags);
223 tree decl = SYMBOL_REF_DECL (in_rtx);
224 if (decl)
225 print_node_brief (m_outfile, "", decl, dump_flags);
227 else if (idx == 3 && NOTE_P (in_rtx))
229 switch (NOTE_KIND (in_rtx))
231 case NOTE_INSN_EH_REGION_BEG:
232 case NOTE_INSN_EH_REGION_END:
233 if (flag_dump_unnumbered)
234 fprintf (m_outfile, " #");
235 else
236 fprintf (m_outfile, " %d", NOTE_EH_HANDLER (in_rtx));
237 m_sawclose = 1;
238 break;
240 case NOTE_INSN_BLOCK_BEG:
241 case NOTE_INSN_BLOCK_END:
242 dump_addr (m_outfile, " ", NOTE_BLOCK (in_rtx));
243 m_sawclose = 1;
244 break;
246 case NOTE_INSN_BASIC_BLOCK:
248 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
249 if (bb != 0)
250 fprintf (m_outfile, " [bb %d]", bb->index);
251 break;
254 case NOTE_INSN_DELETED_LABEL:
255 case NOTE_INSN_DELETED_DEBUG_LABEL:
257 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
258 if (label)
259 fprintf (m_outfile, " (\"%s\")", label);
260 else
261 fprintf (m_outfile, " \"\"");
263 break;
265 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
267 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
268 if (bb != 0)
269 fprintf (m_outfile, " [bb %d]", bb->index);
270 break;
273 case NOTE_INSN_VAR_LOCATION:
274 fputc (' ', m_outfile);
275 print_rtx (NOTE_VAR_LOCATION (in_rtx));
276 break;
278 case NOTE_INSN_CFI:
279 fputc ('\n', m_outfile);
280 output_cfi_directive (m_outfile, NOTE_CFI (in_rtx));
281 fputc ('\t', m_outfile);
282 break;
284 case NOTE_INSN_BEGIN_STMT:
285 case NOTE_INSN_INLINE_ENTRY:
286 #ifndef GENERATOR_FILE
288 expanded_location xloc
289 = expand_location (NOTE_MARKER_LOCATION (in_rtx));
290 fprintf (m_outfile, " %s:%i", xloc.file, xloc.line);
292 #endif
293 break;
295 default:
296 break;
299 else if (idx == 7 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL
300 && !m_compact)
302 /* Output the JUMP_LABEL reference. */
303 fprintf (m_outfile, "\n%s%*s -> ", print_rtx_head, m_indent * 2, "");
304 if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN)
305 fprintf (m_outfile, "return");
306 else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN)
307 fprintf (m_outfile, "simple_return");
308 else
309 fprintf (m_outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx)));
311 else if (idx == 0 && GET_CODE (in_rtx) == VALUE)
313 cselib_val *val = CSELIB_VAL_PTR (in_rtx);
315 fprintf (m_outfile, " %u:%u", val->uid, val->hash);
316 dump_addr (m_outfile, " @", in_rtx);
317 dump_addr (m_outfile, "/", (void*)val);
319 else if (idx == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
321 fprintf (m_outfile, " D#%i",
322 DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
324 else if (idx == 0 && GET_CODE (in_rtx) == ENTRY_VALUE)
326 m_indent += 2;
327 if (!m_sawclose)
328 fprintf (m_outfile, " ");
329 print_rtx (ENTRY_VALUE_EXP (in_rtx));
330 m_indent -= 2;
332 #endif
335 /* Subroutine of print_rtx_operand for handling code 'e'.
336 Also called by print_rtx_operand_code_u for handling code 'u'
337 for LABEL_REFs when they don't reference a CODE_LABEL. */
339 void
340 rtx_writer::print_rtx_operand_code_e (const_rtx in_rtx, int idx)
342 m_indent += 2;
343 if (idx == 6 && INSN_P (in_rtx))
344 /* Put REG_NOTES on their own line. */
345 fprintf (m_outfile, "\n%s%*s",
346 print_rtx_head, m_indent * 2, "");
347 if (!m_sawclose)
348 fprintf (m_outfile, " ");
349 if (idx == 7 && CALL_P (in_rtx))
351 m_in_call_function_usage = true;
352 print_rtx (XEXP (in_rtx, idx));
353 m_in_call_function_usage = false;
355 else
356 print_rtx (XEXP (in_rtx, idx));
357 m_indent -= 2;
360 /* Subroutine of print_rtx_operand for handling codes 'E' and 'V'. */
362 void
363 rtx_writer::print_rtx_operand_codes_E_and_V (const_rtx in_rtx, int idx)
365 m_indent += 2;
366 if (m_sawclose)
368 fprintf (m_outfile, "\n%s%*s",
369 print_rtx_head, m_indent * 2, "");
370 m_sawclose = 0;
372 fputs (" [", m_outfile);
373 if (XVEC (in_rtx, idx) != NULL)
375 m_indent += 2;
376 if (XVECLEN (in_rtx, idx))
377 m_sawclose = 1;
379 for (int j = 0; j < XVECLEN (in_rtx, idx); j++)
381 int j1;
383 print_rtx (XVECEXP (in_rtx, idx, j));
384 for (j1 = j + 1; j1 < XVECLEN (in_rtx, idx); j1++)
385 if (XVECEXP (in_rtx, idx, j) != XVECEXP (in_rtx, idx, j1))
386 break;
388 if (j1 != j + 1)
390 fprintf (m_outfile, " repeated x%i", j1 - j);
391 j = j1 - 1;
395 m_indent -= 2;
397 if (m_sawclose)
398 fprintf (m_outfile, "\n%s%*s", print_rtx_head, m_indent * 2, "");
400 fputs ("]", m_outfile);
401 m_sawclose = 1;
402 m_indent -= 2;
405 /* Subroutine of print_rtx_operand for handling code 'i'. */
407 void
408 rtx_writer::print_rtx_operand_code_i (const_rtx in_rtx, int idx)
410 if (idx == 4 && INSN_P (in_rtx))
412 #ifndef GENERATOR_FILE
413 const rtx_insn *in_insn = as_a <const rtx_insn *> (in_rtx);
415 /* Pretty-print insn locations. Ignore scoping as it is mostly
416 redundant with line number information and do not print anything
417 when there is no location information available. */
418 if (INSN_HAS_LOCATION (in_insn))
420 expanded_location xloc = insn_location (in_insn);
421 fprintf (m_outfile, " \"%s\":%i:%i", xloc.file, xloc.line,
422 xloc.column);
424 #endif
426 else if (idx == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
428 #ifndef GENERATOR_FILE
429 if (ASM_OPERANDS_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
430 fprintf (m_outfile, " %s:%i",
431 LOCATION_FILE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
432 LOCATION_LINE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
433 #endif
435 else if (idx == 1 && GET_CODE (in_rtx) == ASM_INPUT)
437 #ifndef GENERATOR_FILE
438 if (ASM_INPUT_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
439 fprintf (m_outfile, " %s:%i",
440 LOCATION_FILE (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
441 LOCATION_LINE (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
442 #endif
444 else if (idx == 5 && NOTE_P (in_rtx))
446 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
447 other times often contains garbage from INSN->NOTE death. */
448 if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL
449 || NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_DEBUG_LABEL)
450 fprintf (m_outfile, " %d", XINT (in_rtx, idx));
452 #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0
453 else if (idx == 1
454 && GET_CODE (in_rtx) == UNSPEC_VOLATILE
455 && XINT (in_rtx, 1) >= 0
456 && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES)
457 fprintf (m_outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]);
458 #endif
459 #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0
460 else if (idx == 1
461 && (GET_CODE (in_rtx) == UNSPEC
462 || GET_CODE (in_rtx) == UNSPEC_VOLATILE)
463 && XINT (in_rtx, 1) >= 0
464 && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES)
465 fprintf (m_outfile, " %s", unspec_strings[XINT (in_rtx, 1)]);
466 #endif
467 else
469 int value = XINT (in_rtx, idx);
470 const char *name;
471 int is_insn = INSN_P (in_rtx);
473 /* Don't print INSN_CODEs in compact mode. */
474 if (m_compact && is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, idx))
476 m_sawclose = 0;
477 return;
480 if (flag_dump_unnumbered
481 && (is_insn || NOTE_P (in_rtx)))
482 fputc ('#', m_outfile);
483 else
484 fprintf (m_outfile, " %d", value);
486 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, idx)
487 && XINT (in_rtx, idx) >= 0
488 && (name = get_insn_name (XINT (in_rtx, idx))) != NULL)
489 fprintf (m_outfile, " {%s}", name);
490 m_sawclose = 0;
494 /* Subroutine of print_rtx_operand for handling code 'r'. */
496 void
497 rtx_writer::print_rtx_operand_code_r (const_rtx in_rtx)
499 int is_insn = INSN_P (in_rtx);
500 unsigned int regno = REGNO (in_rtx);
502 #ifndef GENERATOR_FILE
503 /* For hard registers and virtuals, always print the
504 regno, except in compact mode. */
505 if (regno <= LAST_VIRTUAL_REGISTER && !m_compact)
506 fprintf (m_outfile, " %d", regno);
507 if (regno < FIRST_PSEUDO_REGISTER)
508 fprintf (m_outfile, " %s", reg_names[regno]);
509 else if (regno <= LAST_VIRTUAL_REGISTER)
511 if (regno == VIRTUAL_INCOMING_ARGS_REGNUM)
512 fprintf (m_outfile, " virtual-incoming-args");
513 else if (regno == VIRTUAL_STACK_VARS_REGNUM)
514 fprintf (m_outfile, " virtual-stack-vars");
515 else if (regno == VIRTUAL_STACK_DYNAMIC_REGNUM)
516 fprintf (m_outfile, " virtual-stack-dynamic");
517 else if (regno == VIRTUAL_OUTGOING_ARGS_REGNUM)
518 fprintf (m_outfile, " virtual-outgoing-args");
519 else if (regno == VIRTUAL_CFA_REGNUM)
520 fprintf (m_outfile, " virtual-cfa");
521 else if (regno == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM)
522 fprintf (m_outfile, " virtual-preferred-stack-boundary");
523 else
524 fprintf (m_outfile, " virtual-reg-%d", regno-FIRST_VIRTUAL_REGISTER);
526 else
527 #endif
528 if (flag_dump_unnumbered && is_insn)
529 fputc ('#', m_outfile);
530 else if (m_compact)
532 /* In compact mode, print pseudos with '< and '>' wrapping the regno,
533 offseting it by (LAST_VIRTUAL_REGISTER + 1), so that the
534 first non-virtual pseudo is dumped as "<0>". */
535 gcc_assert (regno > LAST_VIRTUAL_REGISTER);
536 fprintf (m_outfile, " <%d>", regno - (LAST_VIRTUAL_REGISTER + 1));
538 else
539 fprintf (m_outfile, " %d", regno);
541 #ifndef GENERATOR_FILE
542 if (REG_ATTRS (in_rtx))
544 fputs (" [", m_outfile);
545 if (regno != ORIGINAL_REGNO (in_rtx))
546 fprintf (m_outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
547 if (REG_EXPR (in_rtx))
548 print_mem_expr (m_outfile, REG_EXPR (in_rtx));
550 if (maybe_ne (REG_OFFSET (in_rtx), 0))
552 fprintf (m_outfile, "+");
553 print_poly_int (m_outfile, REG_OFFSET (in_rtx));
555 fputs (" ]", m_outfile);
557 if (regno != ORIGINAL_REGNO (in_rtx))
558 fprintf (m_outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
559 #endif
562 /* Subroutine of print_rtx_operand for handling code 'u'. */
564 void
565 rtx_writer::print_rtx_operand_code_u (const_rtx in_rtx, int idx)
567 /* Don't print insn UIDs for PREV/NEXT_INSN in compact mode. */
568 if (m_compact && INSN_CHAIN_CODE_P (GET_CODE (in_rtx)) && idx < 2)
569 return;
571 if (XEXP (in_rtx, idx) != NULL)
573 rtx sub = XEXP (in_rtx, idx);
574 enum rtx_code subc = GET_CODE (sub);
576 if (GET_CODE (in_rtx) == LABEL_REF)
578 if (subc == NOTE
579 && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL)
581 if (flag_dump_unnumbered)
582 fprintf (m_outfile, " [# deleted]");
583 else
584 fprintf (m_outfile, " [%d deleted]", INSN_UID (sub));
585 m_sawclose = 0;
586 return;
589 if (subc != CODE_LABEL)
591 print_rtx_operand_code_e (in_rtx, idx);
592 return;
596 if (flag_dump_unnumbered
597 || (flag_dump_unnumbered_links && idx <= 1
598 && (INSN_P (in_rtx) || NOTE_P (in_rtx)
599 || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
600 fputs (" #", m_outfile);
601 else
602 fprintf (m_outfile, " %d", INSN_UID (sub));
604 else
605 fputs (" 0", m_outfile);
606 m_sawclose = 0;
609 /* Subroutine of print_rtx. Print operand IDX of IN_RTX. */
611 void
612 rtx_writer::print_rtx_operand (const_rtx in_rtx, int idx)
614 const char *format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));
616 switch (format_ptr[idx])
618 const char *str;
620 case 'T':
621 str = XTMPL (in_rtx, idx);
622 goto string;
624 case 'S':
625 case 's':
626 str = XSTR (in_rtx, idx);
627 string:
629 if (str == 0)
630 fputs (" (nil)", m_outfile);
631 else
632 fprintf (m_outfile, " (\"%s\")", str);
633 m_sawclose = 1;
634 break;
636 case '0':
637 print_rtx_operand_code_0 (in_rtx, idx);
638 break;
640 case 'e':
641 print_rtx_operand_code_e (in_rtx, idx);
642 break;
644 case 'E':
645 case 'V':
646 print_rtx_operand_codes_E_and_V (in_rtx, idx);
647 break;
649 case 'w':
650 if (! m_simple)
651 fprintf (m_outfile, " ");
652 fprintf (m_outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, idx));
653 if (! m_simple && !m_compact)
654 fprintf (m_outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
655 (unsigned HOST_WIDE_INT) XWINT (in_rtx, idx));
656 break;
658 case 'i':
659 print_rtx_operand_code_i (in_rtx, idx);
660 break;
662 case 'p':
663 fprintf (m_outfile, " ");
664 print_poly_int (m_outfile, SUBREG_BYTE (in_rtx));
665 break;
667 case 'r':
668 print_rtx_operand_code_r (in_rtx);
669 break;
671 /* Print NOTE_INSN names rather than integer codes. */
673 case 'n':
674 fprintf (m_outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, idx)));
675 m_sawclose = 0;
676 break;
678 case 'u':
679 print_rtx_operand_code_u (in_rtx, idx);
680 break;
682 case 't':
683 #ifndef GENERATOR_FILE
684 if (idx == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR)
685 print_mem_expr (m_outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx));
686 else if (idx == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF)
687 print_mem_expr (m_outfile, DEBUG_PARAMETER_REF_DECL (in_rtx));
688 else
689 dump_addr (m_outfile, " ", XTREE (in_rtx, idx));
690 #endif
691 break;
693 case '*':
694 fputs (" Unknown", m_outfile);
695 m_sawclose = 0;
696 break;
698 case 'B':
699 /* Don't print basic block ids in compact mode. */
700 if (m_compact)
701 break;
702 #ifndef GENERATOR_FILE
703 if (XBBDEF (in_rtx, idx))
704 fprintf (m_outfile, " %i", XBBDEF (in_rtx, idx)->index);
705 #endif
706 break;
708 default:
709 gcc_unreachable ();
713 /* Subroutine of rtx_writer::print_rtx.
714 In compact mode, determine if operand IDX of IN_RTX is interesting
715 to dump, or (if in a trailing position) it can be omitted. */
717 bool
718 rtx_writer::operand_has_default_value_p (const_rtx in_rtx, int idx)
720 const char *format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));
722 switch (format_ptr[idx])
724 case 'e':
725 case 'u':
726 return XEXP (in_rtx, idx) == NULL_RTX;
728 case 's':
729 return XSTR (in_rtx, idx) == NULL;
731 case '0':
732 switch (GET_CODE (in_rtx))
734 case JUMP_INSN:
735 /* JUMP_LABELs are always omitted in compact mode, so treat
736 any value here as omittable, so that earlier operands can
737 potentially be omitted also. */
738 return m_compact;
740 default:
741 return false;
745 default:
746 return false;
750 /* Print IN_RTX onto m_outfile. This is the recursive part of printing. */
752 void
753 rtx_writer::print_rtx (const_rtx in_rtx)
755 int idx = 0;
757 if (m_sawclose)
759 if (m_simple)
760 fputc (' ', m_outfile);
761 else
762 fprintf (m_outfile, "\n%s%*s", print_rtx_head, m_indent * 2, "");
763 m_sawclose = 0;
766 if (in_rtx == 0)
768 fputs ("(nil)", m_outfile);
769 m_sawclose = 1;
770 return;
772 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
774 fprintf (m_outfile, "(??? bad code %d\n%s%*s)", GET_CODE (in_rtx),
775 print_rtx_head, m_indent * 2, "");
776 m_sawclose = 1;
777 return;
780 fputc ('(', m_outfile);
782 /* Print name of expression code. */
784 /* Handle reuse. */
785 #ifndef GENERATOR_FILE
786 if (m_rtx_reuse_manager)
788 int reuse_id;
789 if (m_rtx_reuse_manager->has_reuse_id (in_rtx, &reuse_id))
791 /* Have we already seen the defn of this rtx? */
792 if (m_rtx_reuse_manager->seen_def_p (reuse_id))
794 fprintf (m_outfile, "reuse_rtx %i)", reuse_id);
795 m_sawclose = 1;
796 return;
798 else
800 /* First time we've seen this reused-rtx. */
801 fprintf (m_outfile, "%i|", reuse_id);
802 m_rtx_reuse_manager->set_seen_def (reuse_id);
806 #endif /* #ifndef GENERATOR_FILE */
808 /* In compact mode, prefix the code of insns with "c",
809 giving "cinsn", "cnote" etc. */
810 if (m_compact && is_a <const rtx_insn *, const struct rtx_def> (in_rtx))
812 /* "ccode_label" is slightly awkward, so special-case it as
813 just "clabel". */
814 rtx_code code = GET_CODE (in_rtx);
815 if (code == CODE_LABEL)
816 fprintf (m_outfile, "clabel");
817 else
818 fprintf (m_outfile, "c%s", GET_RTX_NAME (code));
820 else if (m_simple && CONST_INT_P (in_rtx))
821 ; /* no code. */
822 else
823 fprintf (m_outfile, "%s", GET_RTX_NAME (GET_CODE (in_rtx)));
825 if (! m_simple)
827 if (RTX_FLAG (in_rtx, in_struct))
828 fputs ("/s", m_outfile);
830 if (RTX_FLAG (in_rtx, volatil))
831 fputs ("/v", m_outfile);
833 if (RTX_FLAG (in_rtx, unchanging))
834 fputs ("/u", m_outfile);
836 if (RTX_FLAG (in_rtx, frame_related))
837 fputs ("/f", m_outfile);
839 if (RTX_FLAG (in_rtx, jump))
840 fputs ("/j", m_outfile);
842 if (RTX_FLAG (in_rtx, call))
843 fputs ("/c", m_outfile);
845 if (RTX_FLAG (in_rtx, return_val))
846 fputs ("/i", m_outfile);
848 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
849 if ((GET_CODE (in_rtx) == EXPR_LIST
850 || GET_CODE (in_rtx) == INSN_LIST
851 || GET_CODE (in_rtx) == INT_LIST)
852 && (int)GET_MODE (in_rtx) < REG_NOTE_MAX
853 && !m_in_call_function_usage)
854 fprintf (m_outfile, ":%s",
855 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
857 /* For other rtl, print the mode if it's not VOID. */
858 else if (GET_MODE (in_rtx) != VOIDmode)
859 fprintf (m_outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
861 #ifndef GENERATOR_FILE
862 if (GET_CODE (in_rtx) == VAR_LOCATION)
864 if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST)
865 fputs (" <debug string placeholder>", m_outfile);
866 else
867 print_mem_expr (m_outfile, PAT_VAR_LOCATION_DECL (in_rtx));
868 fputc (' ', m_outfile);
869 print_rtx (PAT_VAR_LOCATION_LOC (in_rtx));
870 if (PAT_VAR_LOCATION_STATUS (in_rtx)
871 == VAR_INIT_STATUS_UNINITIALIZED)
872 fprintf (m_outfile, " [uninit]");
873 m_sawclose = 1;
874 idx = GET_RTX_LENGTH (VAR_LOCATION);
876 #endif
879 #ifndef GENERATOR_FILE
880 if (CONST_DOUBLE_AS_FLOAT_P (in_rtx))
881 idx = 5;
882 #endif
884 /* For insns, print the INSN_UID. */
885 if (INSN_CHAIN_CODE_P (GET_CODE (in_rtx)))
887 if (flag_dump_unnumbered)
888 fprintf (m_outfile, " #");
889 else
890 fprintf (m_outfile, " %d", INSN_UID (in_rtx));
893 /* Determine which is the final operand to print.
894 In compact mode, skip trailing operands that have the default values
895 e.g. trailing "(nil)" values. */
896 int limit = GET_RTX_LENGTH (GET_CODE (in_rtx));
897 if (m_compact)
898 while (limit > idx && operand_has_default_value_p (in_rtx, limit - 1))
899 limit--;
901 /* Get the format string and skip the first elements if we have handled
902 them already. */
904 for (; idx < limit; idx++)
905 print_rtx_operand (in_rtx, idx);
907 switch (GET_CODE (in_rtx))
909 #ifndef GENERATOR_FILE
910 case MEM:
911 if (__builtin_expect (final_insns_dump_p, false))
912 fprintf (m_outfile, " [");
913 else
914 fprintf (m_outfile, " [" HOST_WIDE_INT_PRINT_DEC,
915 (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
917 if (MEM_EXPR (in_rtx))
918 print_mem_expr (m_outfile, MEM_EXPR (in_rtx));
919 else
920 fputc (' ', m_outfile);
922 if (MEM_OFFSET_KNOWN_P (in_rtx))
924 fprintf (m_outfile, "+");
925 print_poly_int (m_outfile, MEM_OFFSET (in_rtx));
928 if (MEM_SIZE_KNOWN_P (in_rtx))
930 fprintf (m_outfile, " S");
931 print_poly_int (m_outfile, MEM_SIZE (in_rtx));
934 if (MEM_ALIGN (in_rtx) != 1)
935 fprintf (m_outfile, " A%u", MEM_ALIGN (in_rtx));
937 if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
938 fprintf (m_outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
940 fputc (']', m_outfile);
941 break;
943 case CONST_DOUBLE:
944 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
946 char s[60];
948 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
949 sizeof (s), 0, 1);
950 fprintf (m_outfile, " %s", s);
952 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
953 sizeof (s), 0, 1);
954 fprintf (m_outfile, " [%s]", s);
956 break;
958 case CONST_WIDE_INT:
959 fprintf (m_outfile, " ");
960 cwi_output_hex (m_outfile, in_rtx);
961 break;
963 case CONST_POLY_INT:
964 fprintf (m_outfile, " [");
965 print_dec (CONST_POLY_INT_COEFFS (in_rtx)[0], m_outfile, SIGNED);
966 for (unsigned int i = 1; i < NUM_POLY_INT_COEFFS; ++i)
968 fprintf (m_outfile, ", ");
969 print_dec (CONST_POLY_INT_COEFFS (in_rtx)[i], m_outfile, SIGNED);
971 fprintf (m_outfile, "]");
972 break;
973 #endif
975 case CODE_LABEL:
976 if (!m_compact)
977 fprintf (m_outfile, " [%d uses]", LABEL_NUSES (in_rtx));
978 switch (LABEL_KIND (in_rtx))
980 case LABEL_NORMAL: break;
981 case LABEL_STATIC_ENTRY: fputs (" [entry]", m_outfile); break;
982 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", m_outfile); break;
983 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", m_outfile); break;
984 default: gcc_unreachable ();
986 break;
988 default:
989 break;
992 fputc (')', m_outfile);
993 m_sawclose = 1;
996 /* Emit a closing parenthesis and newline. */
998 void
999 rtx_writer::finish_directive ()
1001 fprintf (m_outfile, ")\n");
1002 m_sawclose = 0;
1005 /* Print an rtx on the current line of FILE. Initially indent IND
1006 characters. */
1008 void
1009 print_inline_rtx (FILE *outf, const_rtx x, int ind)
1011 rtx_writer w (outf, ind, false, false, NULL);
1012 w.print_rtx (x);
1015 /* Call this function from the debugger to see what X looks like. */
1017 DEBUG_FUNCTION void
1018 debug_rtx (const_rtx x)
1020 rtx_writer w (stderr, 0, false, false, NULL);
1021 w.print_rtx (x);
1022 fprintf (stderr, "\n");
1025 /* Dump rtx REF. */
1027 DEBUG_FUNCTION void
1028 debug (const rtx_def &ref)
1030 debug_rtx (&ref);
1033 DEBUG_FUNCTION void
1034 debug (const rtx_def *ptr)
1036 if (ptr)
1037 debug (*ptr);
1038 else
1039 fprintf (stderr, "<nil>\n");
1042 /* Like debug_rtx but with no newline, as debug_helper will add one.
1044 Note: No debug_slim(rtx_insn *) variant implemented, as this
1045 function can serve for both rtx and rtx_insn. */
1047 static void
1048 debug_slim (const_rtx x)
1050 rtx_writer w (stderr, 0, false, false, NULL);
1051 w.print_rtx (x);
1054 DEFINE_DEBUG_VEC (rtx_def *)
1055 DEFINE_DEBUG_VEC (rtx_insn *)
1056 DEFINE_DEBUG_HASH_SET (rtx_def *)
1057 DEFINE_DEBUG_HASH_SET (rtx_insn *)
1059 /* Count of rtx's to print with debug_rtx_list.
1060 This global exists because gdb user defined commands have no arguments. */
1062 DEBUG_VARIABLE int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
1064 /* Call this function to print list from X on.
1066 N is a count of the rtx's to print. Positive values print from the specified
1067 rtx_insn on. Negative values print a window around the rtx_insn.
1068 EG: -5 prints 2 rtx_insn's on either side (in addition to the specified
1069 rtx_insn). */
1071 DEBUG_FUNCTION void
1072 debug_rtx_list (const rtx_insn *x, int n)
1074 int i,count;
1075 const rtx_insn *insn;
1077 count = n == 0 ? 1 : n < 0 ? -n : n;
1079 /* If we are printing a window, back up to the start. */
1081 if (n < 0)
1082 for (i = count / 2; i > 0; i--)
1084 if (PREV_INSN (x) == 0)
1085 break;
1086 x = PREV_INSN (x);
1089 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
1091 debug_rtx (insn);
1092 fprintf (stderr, "\n");
1096 /* Call this function to print an rtx_insn list from START to END
1097 inclusive. */
1099 DEBUG_FUNCTION void
1100 debug_rtx_range (const rtx_insn *start, const rtx_insn *end)
1102 while (1)
1104 debug_rtx (start);
1105 fprintf (stderr, "\n");
1106 if (!start || start == end)
1107 break;
1108 start = NEXT_INSN (start);
1112 /* Call this function to search an rtx_insn list to find one with insn uid UID,
1113 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
1114 The found insn is returned to enable further debugging analysis. */
1116 DEBUG_FUNCTION const rtx_insn *
1117 debug_rtx_find (const rtx_insn *x, int uid)
1119 while (x != 0 && INSN_UID (x) != uid)
1120 x = NEXT_INSN (x);
1121 if (x != 0)
1123 debug_rtx_list (x, debug_rtx_count);
1124 return x;
1126 else
1128 fprintf (stderr, "insn uid %d not found\n", uid);
1129 return 0;
1133 /* External entry point for printing a chain of insns
1134 starting with RTX_FIRST.
1135 A blank line separates insns.
1137 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
1139 void
1140 rtx_writer::print_rtl (const_rtx rtx_first)
1142 const rtx_insn *tmp_rtx;
1144 if (rtx_first == 0)
1146 fputs (print_rtx_head, m_outfile);
1147 fputs ("(nil)\n", m_outfile);
1149 else
1150 switch (GET_CODE (rtx_first))
1152 case INSN:
1153 case JUMP_INSN:
1154 case CALL_INSN:
1155 case NOTE:
1156 case CODE_LABEL:
1157 case JUMP_TABLE_DATA:
1158 case BARRIER:
1159 for (tmp_rtx = as_a <const rtx_insn *> (rtx_first);
1160 tmp_rtx != 0;
1161 tmp_rtx = NEXT_INSN (tmp_rtx))
1163 fputs (print_rtx_head, m_outfile);
1164 print_rtx (tmp_rtx);
1165 fprintf (m_outfile, "\n");
1167 break;
1169 default:
1170 fputs (print_rtx_head, m_outfile);
1171 print_rtx (rtx_first);
1175 /* External entry point for printing a chain of insns
1176 starting with RTX_FIRST onto file OUTF.
1177 A blank line separates insns.
1179 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
1181 void
1182 print_rtl (FILE *outf, const_rtx rtx_first)
1184 rtx_writer w (outf, 0, false, false, NULL);
1185 w.print_rtl (rtx_first);
1188 /* Like print_rtx, except specify a file. */
1189 /* Return nonzero if we actually printed anything. */
1192 print_rtl_single (FILE *outf, const_rtx x)
1194 rtx_writer w (outf, 0, false, false, NULL);
1195 return w.print_rtl_single_with_indent (x, 0);
1198 /* Like print_rtl_single, except specify an indentation. */
1201 rtx_writer::print_rtl_single_with_indent (const_rtx x, int ind)
1203 char *s_indent = (char *) alloca ((size_t) ind + 1);
1204 memset ((void *) s_indent, ' ', (size_t) ind);
1205 s_indent[ind] = '\0';
1206 fputs (s_indent, m_outfile);
1207 fputs (print_rtx_head, m_outfile);
1209 int old_indent = m_indent;
1210 m_indent = ind;
1211 m_sawclose = 0;
1212 print_rtx (x);
1213 putc ('\n', m_outfile);
1214 m_indent = old_indent;
1215 return 1;
1219 /* Like print_rtl except without all the detail; for example,
1220 if RTX is a CONST_INT then print in decimal format. */
1222 void
1223 print_simple_rtl (FILE *outf, const_rtx x)
1225 rtx_writer w (outf, 0, true, false, NULL);
1226 w.print_rtl (x);
1229 /* Print the elements of VEC to FILE. */
1231 void
1232 print_rtx_insn_vec (FILE *file, const vec<rtx_insn *> &vec)
1234 fputc('{', file);
1236 unsigned int len = vec.length ();
1237 for (unsigned int i = 0; i < len; i++)
1239 print_rtl (file, vec[i]);
1240 if (i < len - 1)
1241 fputs (", ", file);
1244 fputc ('}', file);
1247 #ifndef GENERATOR_FILE
1248 /* The functions below try to print RTL in a form resembling assembler
1249 mnemonics. Because this form is more concise than the "traditional" form
1250 of RTL printing in Lisp-style, the form printed by this file is called
1251 "slim". RTL dumps in slim format can be obtained by appending the "-slim"
1252 option to -fdump-rtl-<pass>. Control flow graph output as a DOT file is
1253 always printed in slim form.
1255 The normal interface to the functionality provided in this pretty-printer
1256 is through the dump_*_slim functions to print to a stream, or via the
1257 print_*_slim functions to print into a user's pretty-printer.
1259 It is also possible to obtain a string for a single pattern as a string
1260 pointer, via str_pattern_slim, but this usage is discouraged. */
1262 /* For insns we print patterns, and for some patterns we print insns... */
1263 static void print_insn_with_notes (pretty_printer *, const rtx_insn *);
1265 /* This recognizes rtx'en classified as expressions. These are always
1266 represent some action on values or results of other expression, that
1267 may be stored in objects representing values. */
1269 static void
1270 print_exp (pretty_printer *pp, const_rtx x, int verbose)
1272 const char *st[4];
1273 const char *fun;
1274 rtx op[4];
1275 int i;
1277 fun = (char *) 0;
1278 for (i = 0; i < 4; i++)
1280 st[i] = (char *) 0;
1281 op[i] = NULL_RTX;
1284 switch (GET_CODE (x))
1286 case PLUS:
1287 op[0] = XEXP (x, 0);
1288 if (CONST_INT_P (XEXP (x, 1))
1289 && INTVAL (XEXP (x, 1)) < 0)
1291 st[1] = "-";
1292 op[1] = GEN_INT (-INTVAL (XEXP (x, 1)));
1294 else
1296 st[1] = "+";
1297 op[1] = XEXP (x, 1);
1299 break;
1300 case LO_SUM:
1301 op[0] = XEXP (x, 0);
1302 st[1] = "+low(";
1303 op[1] = XEXP (x, 1);
1304 st[2] = ")";
1305 break;
1306 case MINUS:
1307 op[0] = XEXP (x, 0);
1308 st[1] = "-";
1309 op[1] = XEXP (x, 1);
1310 break;
1311 case COMPARE:
1312 fun = "cmp";
1313 op[0] = XEXP (x, 0);
1314 op[1] = XEXP (x, 1);
1315 break;
1316 case NEG:
1317 st[0] = "-";
1318 op[0] = XEXP (x, 0);
1319 break;
1320 case FMA:
1321 st[0] = "{";
1322 op[0] = XEXP (x, 0);
1323 st[1] = "*";
1324 op[1] = XEXP (x, 1);
1325 st[2] = "+";
1326 op[2] = XEXP (x, 2);
1327 st[3] = "}";
1328 break;
1329 case MULT:
1330 op[0] = XEXP (x, 0);
1331 st[1] = "*";
1332 op[1] = XEXP (x, 1);
1333 break;
1334 case DIV:
1335 op[0] = XEXP (x, 0);
1336 st[1] = "/";
1337 op[1] = XEXP (x, 1);
1338 break;
1339 case UDIV:
1340 fun = "udiv";
1341 op[0] = XEXP (x, 0);
1342 op[1] = XEXP (x, 1);
1343 break;
1344 case MOD:
1345 op[0] = XEXP (x, 0);
1346 st[1] = "%";
1347 op[1] = XEXP (x, 1);
1348 break;
1349 case UMOD:
1350 fun = "umod";
1351 op[0] = XEXP (x, 0);
1352 op[1] = XEXP (x, 1);
1353 break;
1354 case SMIN:
1355 fun = "smin";
1356 op[0] = XEXP (x, 0);
1357 op[1] = XEXP (x, 1);
1358 break;
1359 case SMAX:
1360 fun = "smax";
1361 op[0] = XEXP (x, 0);
1362 op[1] = XEXP (x, 1);
1363 break;
1364 case UMIN:
1365 fun = "umin";
1366 op[0] = XEXP (x, 0);
1367 op[1] = XEXP (x, 1);
1368 break;
1369 case UMAX:
1370 fun = "umax";
1371 op[0] = XEXP (x, 0);
1372 op[1] = XEXP (x, 1);
1373 break;
1374 case NOT:
1375 st[0] = "~";
1376 op[0] = XEXP (x, 0);
1377 break;
1378 case AND:
1379 op[0] = XEXP (x, 0);
1380 st[1] = "&";
1381 op[1] = XEXP (x, 1);
1382 break;
1383 case IOR:
1384 op[0] = XEXP (x, 0);
1385 st[1] = "|";
1386 op[1] = XEXP (x, 1);
1387 break;
1388 case XOR:
1389 op[0] = XEXP (x, 0);
1390 st[1] = "^";
1391 op[1] = XEXP (x, 1);
1392 break;
1393 case ASHIFT:
1394 op[0] = XEXP (x, 0);
1395 st[1] = "<<";
1396 op[1] = XEXP (x, 1);
1397 break;
1398 case LSHIFTRT:
1399 op[0] = XEXP (x, 0);
1400 st[1] = " 0>>";
1401 op[1] = XEXP (x, 1);
1402 break;
1403 case ASHIFTRT:
1404 op[0] = XEXP (x, 0);
1405 st[1] = ">>";
1406 op[1] = XEXP (x, 1);
1407 break;
1408 case ROTATE:
1409 op[0] = XEXP (x, 0);
1410 st[1] = "<-<";
1411 op[1] = XEXP (x, 1);
1412 break;
1413 case ROTATERT:
1414 op[0] = XEXP (x, 0);
1415 st[1] = ">->";
1416 op[1] = XEXP (x, 1);
1417 break;
1418 case NE:
1419 op[0] = XEXP (x, 0);
1420 st[1] = "!=";
1421 op[1] = XEXP (x, 1);
1422 break;
1423 case EQ:
1424 op[0] = XEXP (x, 0);
1425 st[1] = "==";
1426 op[1] = XEXP (x, 1);
1427 break;
1428 case GE:
1429 op[0] = XEXP (x, 0);
1430 st[1] = ">=";
1431 op[1] = XEXP (x, 1);
1432 break;
1433 case GT:
1434 op[0] = XEXP (x, 0);
1435 st[1] = ">";
1436 op[1] = XEXP (x, 1);
1437 break;
1438 case LE:
1439 op[0] = XEXP (x, 0);
1440 st[1] = "<=";
1441 op[1] = XEXP (x, 1);
1442 break;
1443 case LT:
1444 op[0] = XEXP (x, 0);
1445 st[1] = "<";
1446 op[1] = XEXP (x, 1);
1447 break;
1448 case SIGN_EXTRACT:
1449 fun = (verbose) ? "sign_extract" : "sxt";
1450 op[0] = XEXP (x, 0);
1451 op[1] = XEXP (x, 1);
1452 op[2] = XEXP (x, 2);
1453 break;
1454 case ZERO_EXTRACT:
1455 fun = (verbose) ? "zero_extract" : "zxt";
1456 op[0] = XEXP (x, 0);
1457 op[1] = XEXP (x, 1);
1458 op[2] = XEXP (x, 2);
1459 break;
1460 case SIGN_EXTEND:
1461 fun = (verbose) ? "sign_extend" : "sxn";
1462 op[0] = XEXP (x, 0);
1463 break;
1464 case ZERO_EXTEND:
1465 fun = (verbose) ? "zero_extend" : "zxn";
1466 op[0] = XEXP (x, 0);
1467 break;
1468 case FLOAT_EXTEND:
1469 fun = (verbose) ? "float_extend" : "fxn";
1470 op[0] = XEXP (x, 0);
1471 break;
1472 case TRUNCATE:
1473 fun = (verbose) ? "trunc" : "trn";
1474 op[0] = XEXP (x, 0);
1475 break;
1476 case FLOAT_TRUNCATE:
1477 fun = (verbose) ? "float_trunc" : "ftr";
1478 op[0] = XEXP (x, 0);
1479 break;
1480 case FLOAT:
1481 fun = (verbose) ? "float" : "flt";
1482 op[0] = XEXP (x, 0);
1483 break;
1484 case UNSIGNED_FLOAT:
1485 fun = (verbose) ? "uns_float" : "ufl";
1486 op[0] = XEXP (x, 0);
1487 break;
1488 case FIX:
1489 fun = "fix";
1490 op[0] = XEXP (x, 0);
1491 break;
1492 case UNSIGNED_FIX:
1493 fun = (verbose) ? "uns_fix" : "ufx";
1494 op[0] = XEXP (x, 0);
1495 break;
1496 case PRE_DEC:
1497 st[0] = "--";
1498 op[0] = XEXP (x, 0);
1499 break;
1500 case PRE_INC:
1501 st[0] = "++";
1502 op[0] = XEXP (x, 0);
1503 break;
1504 case POST_DEC:
1505 op[0] = XEXP (x, 0);
1506 st[1] = "--";
1507 break;
1508 case POST_INC:
1509 op[0] = XEXP (x, 0);
1510 st[1] = "++";
1511 break;
1512 case PRE_MODIFY:
1513 st[0] = "pre ";
1514 op[0] = XEXP (XEXP (x, 1), 0);
1515 st[1] = "+=";
1516 op[1] = XEXP (XEXP (x, 1), 1);
1517 break;
1518 case POST_MODIFY:
1519 st[0] = "post ";
1520 op[0] = XEXP (XEXP (x, 1), 0);
1521 st[1] = "+=";
1522 op[1] = XEXP (XEXP (x, 1), 1);
1523 break;
1524 case CALL:
1525 st[0] = "call ";
1526 op[0] = XEXP (x, 0);
1527 if (verbose)
1529 st[1] = " argc:";
1530 op[1] = XEXP (x, 1);
1532 break;
1533 case IF_THEN_ELSE:
1534 st[0] = "{(";
1535 op[0] = XEXP (x, 0);
1536 st[1] = ")?";
1537 op[1] = XEXP (x, 1);
1538 st[2] = ":";
1539 op[2] = XEXP (x, 2);
1540 st[3] = "}";
1541 break;
1542 case TRAP_IF:
1543 fun = "trap_if";
1544 op[0] = TRAP_CONDITION (x);
1545 break;
1546 case PREFETCH:
1547 fun = "prefetch";
1548 op[0] = XEXP (x, 0);
1549 op[1] = XEXP (x, 1);
1550 op[2] = XEXP (x, 2);
1551 break;
1552 case UNSPEC:
1553 case UNSPEC_VOLATILE:
1555 pp_string (pp, "unspec");
1556 if (GET_CODE (x) == UNSPEC_VOLATILE)
1557 pp_string (pp, "/v");
1558 pp_left_bracket (pp);
1559 for (i = 0; i < XVECLEN (x, 0); i++)
1561 if (i != 0)
1562 pp_comma (pp);
1563 print_pattern (pp, XVECEXP (x, 0, i), verbose);
1565 pp_string (pp, "] ");
1566 pp_decimal_int (pp, XINT (x, 1));
1568 break;
1569 default:
1571 /* Most unhandled codes can be printed as pseudo-functions. */
1572 if (GET_RTX_CLASS (GET_CODE (x)) == RTX_UNARY)
1574 fun = GET_RTX_NAME (GET_CODE (x));
1575 op[0] = XEXP (x, 0);
1577 else if (GET_RTX_CLASS (GET_CODE (x)) == RTX_COMPARE
1578 || GET_RTX_CLASS (GET_CODE (x)) == RTX_COMM_COMPARE
1579 || GET_RTX_CLASS (GET_CODE (x)) == RTX_BIN_ARITH
1580 || GET_RTX_CLASS (GET_CODE (x)) == RTX_COMM_ARITH)
1582 fun = GET_RTX_NAME (GET_CODE (x));
1583 op[0] = XEXP (x, 0);
1584 op[1] = XEXP (x, 1);
1586 else if (GET_RTX_CLASS (GET_CODE (x)) == RTX_TERNARY)
1588 fun = GET_RTX_NAME (GET_CODE (x));
1589 op[0] = XEXP (x, 0);
1590 op[1] = XEXP (x, 1);
1591 op[2] = XEXP (x, 2);
1593 else
1594 /* Give up, just print the RTX name. */
1595 st[0] = GET_RTX_NAME (GET_CODE (x));
1597 break;
1600 /* Print this as a function? */
1601 if (fun)
1603 pp_string (pp, fun);
1604 pp_left_paren (pp);
1607 for (i = 0; i < 4; i++)
1609 if (st[i])
1610 pp_string (pp, st[i]);
1612 if (op[i])
1614 if (fun && i != 0)
1615 pp_comma (pp);
1616 print_value (pp, op[i], verbose);
1620 if (fun)
1621 pp_right_paren (pp);
1622 } /* print_exp */
1624 /* Prints rtxes, I customarily classified as values. They're constants,
1625 registers, labels, symbols and memory accesses. */
1627 void
1628 print_value (pretty_printer *pp, const_rtx x, int verbose)
1630 char tmp[1024];
1632 if (!x)
1634 pp_string (pp, "(nil)");
1635 return;
1637 switch (GET_CODE (x))
1639 case CONST_INT:
1640 pp_scalar (pp, HOST_WIDE_INT_PRINT_HEX,
1641 (unsigned HOST_WIDE_INT) INTVAL (x));
1642 break;
1644 case CONST_WIDE_INT:
1646 const char *sep = "<";
1647 int i;
1648 for (i = CONST_WIDE_INT_NUNITS (x) - 1; i >= 0; i--)
1650 pp_string (pp, sep);
1651 sep = ",";
1652 sprintf (tmp, HOST_WIDE_INT_PRINT_HEX,
1653 (unsigned HOST_WIDE_INT) CONST_WIDE_INT_ELT (x, i));
1654 pp_string (pp, tmp);
1656 pp_greater (pp);
1658 break;
1660 case CONST_POLY_INT:
1661 pp_left_bracket (pp);
1662 pp_wide_int (pp, CONST_POLY_INT_COEFFS (x)[0], SIGNED);
1663 for (unsigned int i = 1; i < NUM_POLY_INT_COEFFS; ++i)
1665 pp_string (pp, ", ");
1666 pp_wide_int (pp, CONST_POLY_INT_COEFFS (x)[i], SIGNED);
1668 pp_right_bracket (pp);
1669 break;
1671 case CONST_DOUBLE:
1672 if (FLOAT_MODE_P (GET_MODE (x)))
1674 real_to_decimal (tmp, CONST_DOUBLE_REAL_VALUE (x),
1675 sizeof (tmp), 0, 1);
1676 pp_string (pp, tmp);
1678 else
1679 pp_printf (pp, "<%wx,%wx>",
1680 (unsigned HOST_WIDE_INT) CONST_DOUBLE_LOW (x),
1681 (unsigned HOST_WIDE_INT) CONST_DOUBLE_HIGH (x));
1682 break;
1683 case CONST_FIXED:
1684 fixed_to_decimal (tmp, CONST_FIXED_VALUE (x), sizeof (tmp));
1685 pp_string (pp, tmp);
1686 break;
1687 case CONST_STRING:
1688 pp_printf (pp, "\"%s\"", XSTR (x, 0));
1689 break;
1690 case SYMBOL_REF:
1691 pp_printf (pp, "`%s'", XSTR (x, 0));
1692 break;
1693 case LABEL_REF:
1694 pp_printf (pp, "L%d", INSN_UID (label_ref_label (x)));
1695 break;
1696 case CONST:
1697 case HIGH:
1698 case STRICT_LOW_PART:
1699 pp_printf (pp, "%s(", GET_RTX_NAME (GET_CODE (x)));
1700 print_value (pp, XEXP (x, 0), verbose);
1701 pp_right_paren (pp);
1702 break;
1703 case REG:
1704 if (REGNO (x) < FIRST_PSEUDO_REGISTER)
1706 if (ISDIGIT (reg_names[REGNO (x)][0]))
1707 pp_modulo (pp);
1708 pp_string (pp, reg_names[REGNO (x)]);
1710 else
1711 pp_printf (pp, "r%d", REGNO (x));
1712 if (verbose)
1713 pp_printf (pp, ":%s", GET_MODE_NAME (GET_MODE (x)));
1714 break;
1715 case SUBREG:
1716 print_value (pp, SUBREG_REG (x), verbose);
1717 pp_printf (pp, "#");
1718 pp_wide_integer (pp, SUBREG_BYTE (x));
1719 break;
1720 case SCRATCH:
1721 case CC0:
1722 case PC:
1723 pp_string (pp, GET_RTX_NAME (GET_CODE (x)));
1724 break;
1725 case MEM:
1726 pp_left_bracket (pp);
1727 print_value (pp, XEXP (x, 0), verbose);
1728 pp_right_bracket (pp);
1729 break;
1730 case DEBUG_EXPR:
1731 pp_printf (pp, "D#%i", DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (x)));
1732 break;
1733 default:
1734 print_exp (pp, x, verbose);
1735 break;
1737 } /* print_value */
1739 /* The next step in insn detalization, its pattern recognition. */
1741 void
1742 print_pattern (pretty_printer *pp, const_rtx x, int verbose)
1744 if (! x)
1746 pp_string (pp, "(nil)");
1747 return;
1750 switch (GET_CODE (x))
1752 case SET:
1753 print_value (pp, SET_DEST (x), verbose);
1754 pp_equal (pp);
1755 print_value (pp, SET_SRC (x), verbose);
1756 break;
1757 case RETURN:
1758 case SIMPLE_RETURN:
1759 case EH_RETURN:
1760 pp_string (pp, GET_RTX_NAME (GET_CODE (x)));
1761 break;
1762 case CALL:
1763 print_exp (pp, x, verbose);
1764 break;
1765 case CLOBBER:
1766 case USE:
1767 pp_printf (pp, "%s ", GET_RTX_NAME (GET_CODE (x)));
1768 print_value (pp, XEXP (x, 0), verbose);
1769 break;
1770 case VAR_LOCATION:
1771 pp_string (pp, "loc ");
1772 print_value (pp, PAT_VAR_LOCATION_LOC (x), verbose);
1773 break;
1774 case COND_EXEC:
1775 pp_left_paren (pp);
1776 if (GET_CODE (COND_EXEC_TEST (x)) == NE
1777 && XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
1778 print_value (pp, XEXP (COND_EXEC_TEST (x), 0), verbose);
1779 else if (GET_CODE (COND_EXEC_TEST (x)) == EQ
1780 && XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
1782 pp_exclamation (pp);
1783 print_value (pp, XEXP (COND_EXEC_TEST (x), 0), verbose);
1785 else
1786 print_value (pp, COND_EXEC_TEST (x), verbose);
1787 pp_string (pp, ") ");
1788 print_pattern (pp, COND_EXEC_CODE (x), verbose);
1789 break;
1790 case PARALLEL:
1792 int i;
1794 pp_left_brace (pp);
1795 for (i = 0; i < XVECLEN (x, 0); i++)
1797 print_pattern (pp, XVECEXP (x, 0, i), verbose);
1798 pp_semicolon (pp);
1800 pp_right_brace (pp);
1802 break;
1803 case SEQUENCE:
1805 const rtx_sequence *seq = as_a <const rtx_sequence *> (x);
1806 pp_string (pp, "sequence{");
1807 if (INSN_P (seq->element (0)))
1809 /* Print the sequence insns indented. */
1810 const char * save_print_rtx_head = print_rtx_head;
1811 char indented_print_rtx_head[32];
1813 pp_newline (pp);
1814 gcc_assert (strlen (print_rtx_head) < sizeof (indented_print_rtx_head) - 4);
1815 snprintf (indented_print_rtx_head,
1816 sizeof (indented_print_rtx_head),
1817 "%s ", print_rtx_head);
1818 print_rtx_head = indented_print_rtx_head;
1819 for (int i = 0; i < seq->len (); i++)
1820 print_insn_with_notes (pp, seq->insn (i));
1821 pp_printf (pp, "%s ", save_print_rtx_head);
1822 print_rtx_head = save_print_rtx_head;
1824 else
1826 for (int i = 0; i < seq->len (); i++)
1828 print_pattern (pp, seq->element (i), verbose);
1829 pp_semicolon (pp);
1832 pp_right_brace (pp);
1834 break;
1835 case ASM_INPUT:
1836 pp_printf (pp, "asm {%s}", XSTR (x, 0));
1837 break;
1838 case ADDR_VEC:
1839 for (int i = 0; i < XVECLEN (x, 0); i++)
1841 print_value (pp, XVECEXP (x, 0, i), verbose);
1842 pp_semicolon (pp);
1844 break;
1845 case ADDR_DIFF_VEC:
1846 for (int i = 0; i < XVECLEN (x, 1); i++)
1848 print_value (pp, XVECEXP (x, 1, i), verbose);
1849 pp_semicolon (pp);
1851 break;
1852 case TRAP_IF:
1853 pp_string (pp, "trap_if ");
1854 print_value (pp, TRAP_CONDITION (x), verbose);
1855 break;
1856 case UNSPEC:
1857 case UNSPEC_VOLATILE:
1858 /* Fallthru -- leave UNSPECs to print_exp. */
1859 default:
1860 print_value (pp, x, verbose);
1862 } /* print_pattern */
1864 /* This is the main function in slim rtl visualization mechanism.
1866 X is an insn, to be printed into PP.
1868 This function tries to print it properly in human-readable form,
1869 resembling assembler mnemonics (instead of the older Lisp-style
1870 form).
1872 If VERBOSE is TRUE, insns are printed with more complete (but
1873 longer) pattern names and with extra information, and prefixed
1874 with their INSN_UIDs. */
1876 void
1877 print_insn (pretty_printer *pp, const rtx_insn *x, int verbose)
1879 if (verbose)
1881 /* Blech, pretty-print can't print integers with a specified width. */
1882 char uid_prefix[32];
1883 snprintf (uid_prefix, sizeof uid_prefix, " %4d: ", INSN_UID (x));
1884 pp_string (pp, uid_prefix);
1887 switch (GET_CODE (x))
1889 case INSN:
1890 print_pattern (pp, PATTERN (x), verbose);
1891 break;
1893 case DEBUG_INSN:
1895 if (DEBUG_MARKER_INSN_P (x))
1897 switch (INSN_DEBUG_MARKER_KIND (x))
1899 case NOTE_INSN_BEGIN_STMT:
1900 pp_string (pp, "debug begin stmt marker");
1901 break;
1903 case NOTE_INSN_INLINE_ENTRY:
1904 pp_string (pp, "debug inline entry marker");
1905 break;
1907 default:
1908 gcc_unreachable ();
1910 break;
1913 const char *name = "?";
1914 char idbuf[32];
1916 if (DECL_P (INSN_VAR_LOCATION_DECL (x)))
1918 tree id = DECL_NAME (INSN_VAR_LOCATION_DECL (x));
1919 if (id)
1920 name = IDENTIFIER_POINTER (id);
1921 else if (TREE_CODE (INSN_VAR_LOCATION_DECL (x))
1922 == DEBUG_EXPR_DECL)
1924 sprintf (idbuf, "D#%i",
1925 DEBUG_TEMP_UID (INSN_VAR_LOCATION_DECL (x)));
1926 name = idbuf;
1928 else
1930 sprintf (idbuf, "D.%i",
1931 DECL_UID (INSN_VAR_LOCATION_DECL (x)));
1932 name = idbuf;
1935 pp_printf (pp, "debug %s => ", name);
1936 if (VAR_LOC_UNKNOWN_P (INSN_VAR_LOCATION_LOC (x)))
1937 pp_string (pp, "optimized away");
1938 else
1939 print_pattern (pp, INSN_VAR_LOCATION_LOC (x), verbose);
1941 break;
1943 case JUMP_INSN:
1944 print_pattern (pp, PATTERN (x), verbose);
1945 break;
1946 case CALL_INSN:
1947 if (GET_CODE (PATTERN (x)) == PARALLEL)
1948 print_pattern (pp, XVECEXP (PATTERN (x), 0, 0), verbose);
1949 else
1950 print_pattern (pp, PATTERN (x), verbose);
1951 break;
1952 case CODE_LABEL:
1953 pp_printf (pp, "L%d:", INSN_UID (x));
1954 break;
1955 case JUMP_TABLE_DATA:
1956 pp_string (pp, "jump_table_data{\n");
1957 print_pattern (pp, PATTERN (x), verbose);
1958 pp_right_brace (pp);
1959 break;
1960 case BARRIER:
1961 pp_string (pp, "barrier");
1962 break;
1963 case NOTE:
1965 pp_string (pp, GET_NOTE_INSN_NAME (NOTE_KIND (x)));
1966 switch (NOTE_KIND (x))
1968 case NOTE_INSN_EH_REGION_BEG:
1969 case NOTE_INSN_EH_REGION_END:
1970 pp_printf (pp, " %d", NOTE_EH_HANDLER (x));
1971 break;
1973 case NOTE_INSN_BLOCK_BEG:
1974 case NOTE_INSN_BLOCK_END:
1975 pp_printf (pp, " %d", BLOCK_NUMBER (NOTE_BLOCK (x)));
1976 break;
1978 case NOTE_INSN_BASIC_BLOCK:
1979 pp_printf (pp, " %d", NOTE_BASIC_BLOCK (x)->index);
1980 break;
1982 case NOTE_INSN_DELETED_LABEL:
1983 case NOTE_INSN_DELETED_DEBUG_LABEL:
1985 const char *label = NOTE_DELETED_LABEL_NAME (x);
1986 if (label == NULL)
1987 label = "";
1988 pp_printf (pp, " (\"%s\")", label);
1990 break;
1992 case NOTE_INSN_VAR_LOCATION:
1993 pp_left_brace (pp);
1994 print_pattern (pp, NOTE_VAR_LOCATION (x), verbose);
1995 pp_right_brace (pp);
1996 break;
1998 default:
1999 break;
2001 break;
2003 default:
2004 gcc_unreachable ();
2006 } /* print_insn */
2008 /* Pretty-print a slim dump of X (an insn) to PP, including any register
2009 note attached to the instruction. */
2011 static void
2012 print_insn_with_notes (pretty_printer *pp, const rtx_insn *x)
2014 pp_string (pp, print_rtx_head);
2015 print_insn (pp, x, 1);
2016 pp_newline (pp);
2017 if (INSN_P (x) && REG_NOTES (x))
2018 for (rtx note = REG_NOTES (x); note; note = XEXP (note, 1))
2020 pp_printf (pp, "%s %s ", print_rtx_head,
2021 GET_REG_NOTE_NAME (REG_NOTE_KIND (note)));
2022 if (GET_CODE (note) == INT_LIST)
2023 pp_printf (pp, "%d", XINT (note, 0));
2024 else
2025 print_pattern (pp, XEXP (note, 0), 1);
2026 pp_newline (pp);
2030 /* Print X, an RTL value node, to file F in slim format. Include
2031 additional information if VERBOSE is nonzero.
2033 Value nodes are constants, registers, labels, symbols and
2034 memory. */
2036 void
2037 dump_value_slim (FILE *f, const_rtx x, int verbose)
2039 pretty_printer rtl_slim_pp;
2040 rtl_slim_pp.buffer->stream = f;
2041 print_value (&rtl_slim_pp, x, verbose);
2042 pp_flush (&rtl_slim_pp);
2045 /* Emit a slim dump of X (an insn) to the file F, including any register
2046 note attached to the instruction. */
2047 void
2048 dump_insn_slim (FILE *f, const rtx_insn *x)
2050 pretty_printer rtl_slim_pp;
2051 rtl_slim_pp.buffer->stream = f;
2052 print_insn_with_notes (&rtl_slim_pp, x);
2053 pp_flush (&rtl_slim_pp);
2056 /* Same as above, but stop at LAST or when COUNT == 0.
2057 If COUNT < 0 it will stop only at LAST or NULL rtx. */
2059 void
2060 dump_rtl_slim (FILE *f, const rtx_insn *first, const rtx_insn *last,
2061 int count, int flags ATTRIBUTE_UNUSED)
2063 const rtx_insn *insn, *tail;
2064 pretty_printer rtl_slim_pp;
2065 rtl_slim_pp.buffer->stream = f;
2067 tail = last ? NEXT_INSN (last) : NULL;
2068 for (insn = first;
2069 (insn != NULL) && (insn != tail) && (count != 0);
2070 insn = NEXT_INSN (insn))
2072 print_insn_with_notes (&rtl_slim_pp, insn);
2073 if (count > 0)
2074 count--;
2077 pp_flush (&rtl_slim_pp);
2080 /* Dumps basic block BB to pretty-printer PP in slim form and without and
2081 no indentation, for use as a label of a DOT graph record-node. */
2083 void
2084 rtl_dump_bb_for_graph (pretty_printer *pp, basic_block bb)
2086 rtx_insn *insn;
2087 bool first = true;
2089 /* TODO: inter-bb stuff. */
2090 FOR_BB_INSNS (bb, insn)
2092 if (! first)
2094 pp_bar (pp);
2095 pp_write_text_to_stream (pp);
2097 first = false;
2098 print_insn_with_notes (pp, insn);
2099 pp_write_text_as_dot_label_to_stream (pp, /*for_record=*/true);
2103 /* Pretty-print pattern X of some insn in non-verbose mode.
2104 Return a string pointer to the pretty-printer buffer.
2106 This function is only exported exists only to accommodate some older users
2107 of the slim RTL pretty printers. Please do not use it for new code. */
2109 const char *
2110 str_pattern_slim (const_rtx x)
2112 pretty_printer rtl_slim_pp;
2113 print_pattern (&rtl_slim_pp, x, 0);
2114 return ggc_strdup (pp_formatted_text (&rtl_slim_pp));
2117 /* Emit a slim dump of X (an insn) to stderr. */
2118 extern void debug_insn_slim (const rtx_insn *);
2119 DEBUG_FUNCTION void
2120 debug_insn_slim (const rtx_insn *x)
2122 dump_insn_slim (stderr, x);
2125 /* Same as above, but using dump_rtl_slim. */
2126 extern void debug_rtl_slim (FILE *, const rtx_insn *, const rtx_insn *,
2127 int, int);
2128 DEBUG_FUNCTION void
2129 debug_rtl_slim (const rtx_insn *first, const rtx_insn *last, int count,
2130 int flags)
2132 dump_rtl_slim (stderr, first, last, count, flags);
2135 extern void debug_bb_slim (basic_block);
2136 DEBUG_FUNCTION void
2137 debug_bb_slim (basic_block bb)
2139 dump_bb (stderr, bb, 0, TDF_SLIM | TDF_BLOCKS);
2142 extern void debug_bb_n_slim (int);
2143 DEBUG_FUNCTION void
2144 debug_bb_n_slim (int n)
2146 basic_block bb = BASIC_BLOCK_FOR_FN (cfun, n);
2147 debug_bb_slim (bb);
2150 #endif
2152 #if __GNUC__ >= 10
2153 # pragma GCC diagnostic pop
2154 #endif