1 /* Generate code from machine description to emit insns as rtl.
2 Copyright (C) 1987, 1988, 1991, 1994, 1995, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
27 #include "gensupport.h"
31 static int max_dup_opno
;
32 static int max_scratch_opno
;
33 static int register_constraints
;
34 static int insn_code_number
;
35 static int insn_index_number
;
37 /* Data structure for recording the patterns of insns that have CLOBBERs.
38 We use this to output a function that adds these CLOBBERs to a
39 previously-allocated PARALLEL expression. */
43 struct clobber_ent
*insns
;
46 struct clobber_pat
*next
;
50 /* Records one insn that uses the clobber list. */
54 int code_number
; /* Counts only insns. */
55 struct clobber_ent
*next
;
58 static void max_operand_1
PARAMS ((rtx
));
59 static int max_operand_vec
PARAMS ((rtx
, int));
60 static void print_code
PARAMS ((RTX_CODE
));
61 static void gen_exp
PARAMS ((rtx
, enum rtx_code
));
62 static void gen_insn
PARAMS ((rtx
));
63 static void gen_expand
PARAMS ((rtx
));
64 static void gen_split
PARAMS ((rtx
));
65 static void output_add_clobbers
PARAMS ((void));
66 static void output_added_clobbers_hard_reg_p
PARAMS ((void));
67 static void gen_rtx_scratch
PARAMS ((rtx
, enum rtx_code
));
68 static void output_peephole2_scratches
PARAMS ((rtx
));
85 if (code
== MATCH_OPERAND
&& XSTR (x
, 2) != 0 && *XSTR (x
, 2) != '\0')
86 register_constraints
= 1;
87 if (code
== MATCH_SCRATCH
&& XSTR (x
, 1) != 0 && *XSTR (x
, 1) != '\0')
88 register_constraints
= 1;
89 if (code
== MATCH_OPERAND
|| code
== MATCH_OPERATOR
90 || code
== MATCH_PARALLEL
)
91 max_opno
= MAX (max_opno
, XINT (x
, 0));
92 if (code
== MATCH_DUP
|| code
== MATCH_OP_DUP
|| code
== MATCH_PAR_DUP
)
93 max_dup_opno
= MAX (max_dup_opno
, XINT (x
, 0));
94 if (code
== MATCH_SCRATCH
)
95 max_scratch_opno
= MAX (max_scratch_opno
, XINT (x
, 0));
97 fmt
= GET_RTX_FORMAT (code
);
98 len
= GET_RTX_LENGTH (code
);
99 for (i
= 0; i
< len
; i
++)
101 if (fmt
[i
] == 'e' || fmt
[i
] == 'u')
102 max_operand_1 (XEXP (x
, i
));
103 else if (fmt
[i
] == 'E')
106 for (j
= 0; j
< XVECLEN (x
, i
); j
++)
107 max_operand_1 (XVECEXP (x
, i
, j
));
113 max_operand_vec (insn
, arg
)
117 int len
= XVECLEN (insn
, arg
);
122 max_scratch_opno
= -1;
124 for (i
= 0; i
< len
; i
++)
125 max_operand_1 (XVECEXP (insn
, arg
, i
));
135 for (p1
= GET_RTX_NAME (code
); *p1
; p1
++)
136 putchar (TOUPPER(*p1
));
140 gen_rtx_scratch (x
, subroutine_type
)
142 enum rtx_code subroutine_type
;
144 if (subroutine_type
== DEFINE_PEEPHOLE2
)
146 printf ("operand%d", XINT (x
, 0));
150 printf ("gen_rtx_SCRATCH (%smode)", GET_MODE_NAME (GET_MODE (x
)));
154 /* Print a C expression to construct an RTX just like X,
155 substituting any operand references appearing within. */
158 gen_exp (x
, subroutine_type
)
160 enum rtx_code subroutine_type
;
179 printf ("operand%d", XINT (x
, 0));
183 printf ("gen_rtx (GET_CODE (operand%d), ", XINT (x
, 0));
184 if (GET_MODE (x
) == VOIDmode
)
185 printf ("GET_MODE (operand%d)", XINT (x
, 0));
187 printf ("%smode", GET_MODE_NAME (GET_MODE (x
)));
188 for (i
= 0; i
< XVECLEN (x
, 1); i
++)
191 gen_exp (XVECEXP (x
, 1, i
), subroutine_type
);
197 printf ("gen_rtx (GET_CODE (operand%d)", XINT (x
, 0));
198 printf (", %smode", GET_MODE_NAME (GET_MODE (x
)));
199 for (i
= 0; i
< XVECLEN (x
, 2); i
++)
202 gen_exp (XVECEXP (x
, 2, i
), subroutine_type
);
209 printf ("operand%d", XINT (x
, 0));
213 gen_rtx_scratch (x
, subroutine_type
);
217 fatal ("ADDRESS expression code used in named instruction pattern");
229 printf ("const0_rtx");
230 else if (INTVAL (x
) == 1)
231 printf ("const1_rtx");
232 else if (INTVAL (x
) == -1)
233 printf ("constm1_rtx");
234 else if (INTVAL (x
) == STORE_FLAG_VALUE
)
235 printf ("const_true_rtx");
238 printf ("GEN_INT (");
239 printf (HOST_WIDE_INT_PRINT_DEC
, INTVAL (x
));
245 /* These shouldn't be written in MD files. Instead, the appropriate
246 routines in varasm.c should be called. */
255 printf (" (%smode", GET_MODE_NAME (GET_MODE (x
)));
257 fmt
= GET_RTX_FORMAT (code
);
258 len
= GET_RTX_LENGTH (code
);
259 for (i
= 0; i
< len
; i
++)
264 if (fmt
[i
] == 'e' || fmt
[i
] == 'u')
265 gen_exp (XEXP (x
, i
), subroutine_type
);
266 else if (fmt
[i
] == 'i')
267 printf ("%u", XINT (x
, i
));
268 else if (fmt
[i
] == 's')
269 printf ("\"%s\"", XSTR (x
, i
));
270 else if (fmt
[i
] == 'E')
273 printf ("gen_rtvec (%d", XVECLEN (x
, i
));
274 for (j
= 0; j
< XVECLEN (x
, i
); j
++)
277 gen_exp (XVECEXP (x
, i
, j
), subroutine_type
);
287 /* Generate the `gen_...' function for a DEFINE_INSN. */
296 /* See if the pattern for this insn ends with a group of CLOBBERs of (hard)
297 registers or MATCH_SCRATCHes. If so, store away the information for
302 int has_hard_reg
= 0;
304 for (i
= XVECLEN (insn
, 1) - 1; i
> 0; i
--)
306 if (GET_CODE (XVECEXP (insn
, 1, i
)) != CLOBBER
)
309 if (GET_CODE (XEXP (XVECEXP (insn
, 1, i
), 0)) == REG
)
311 else if (GET_CODE (XEXP (XVECEXP (insn
, 1, i
), 0)) != MATCH_SCRATCH
)
315 if (i
!= XVECLEN (insn
, 1) - 1)
317 struct clobber_pat
*p
;
318 struct clobber_ent
*link
319 = (struct clobber_ent
*) xmalloc (sizeof (struct clobber_ent
));
322 link
->code_number
= insn_code_number
;
324 /* See if any previous CLOBBER_LIST entry is the same as this
327 for (p
= clobber_list
; p
; p
= p
->next
)
329 if (p
->first_clobber
!= i
+ 1
330 || XVECLEN (p
->pattern
, 1) != XVECLEN (insn
, 1))
333 for (j
= i
+ 1; j
< XVECLEN (insn
, 1); j
++)
335 rtx old
= XEXP (XVECEXP (p
->pattern
, 1, j
), 0);
336 rtx
new = XEXP (XVECEXP (insn
, 1, j
), 0);
338 /* OLD and NEW are the same if both are to be a SCRATCH
340 or if both are registers of the same mode and number. */
341 if (! (GET_MODE (old
) == GET_MODE (new)
342 && ((GET_CODE (old
) == MATCH_SCRATCH
343 && GET_CODE (new) == MATCH_SCRATCH
)
344 || (GET_CODE (old
) == REG
&& GET_CODE (new) == REG
345 && REGNO (old
) == REGNO (new)))))
349 if (j
== XVECLEN (insn
, 1))
355 p
= (struct clobber_pat
*) xmalloc (sizeof (struct clobber_pat
));
359 p
->first_clobber
= i
+ 1;
360 p
->next
= clobber_list
;
361 p
->has_hard_reg
= has_hard_reg
;
365 link
->next
= p
->insns
;
370 /* Don't mention instructions whose names are the null string
371 or begin with '*'. They are in the machine description just
373 if (XSTR (insn
, 0)[0] == 0 || XSTR (insn
, 0)[0] == '*')
376 /* Find out how many operands this function has,
377 and also whether any of them have register constraints. */
378 register_constraints
= 0;
379 operands
= max_operand_vec (insn
, 1);
380 if (max_dup_opno
>= operands
)
381 fatal ("match_dup operand number has no match_operand");
383 /* Output the function name and argument declarations. */
384 printf ("rtx\ngen_%s (", XSTR (insn
, 0));
385 for (i
= 0; i
< operands
; i
++)
387 printf (", operand%d", i
);
389 printf ("operand%d", i
);
391 for (i
= 0; i
< operands
; i
++)
392 printf (" rtx operand%d;\n", i
);
395 /* Output code to construct and return the rtl for the instruction body */
397 if (XVECLEN (insn
, 1) == 1)
400 gen_exp (XVECEXP (insn
, 1, 0), DEFINE_INSN
);
405 printf (" return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (%d",
408 for (i
= 0; i
< XVECLEN (insn
, 1); i
++)
411 gen_exp (XVECEXP (insn
, 1, i
), DEFINE_INSN
);
413 printf ("));\n}\n\n");
417 /* Generate the `gen_...' function for a DEFINE_EXPAND. */
426 if (strlen (XSTR (expand
, 0)) == 0)
427 fatal ("define_expand lacks a name");
428 if (XVEC (expand
, 1) == 0)
429 fatal ("define_expand for %s lacks a pattern", XSTR (expand
, 0));
431 /* Find out how many operands this function has,
432 and also whether any of them have register constraints. */
433 register_constraints
= 0;
435 operands
= max_operand_vec (expand
, 1);
437 /* Output the function name and argument declarations. */
438 printf ("rtx\ngen_%s (", XSTR (expand
, 0));
439 for (i
= 0; i
< operands
; i
++)
441 printf (", operand%d", i
);
443 printf ("operand%d", i
);
445 for (i
= 0; i
< operands
; i
++)
446 printf (" rtx operand%d;\n", i
);
449 /* If we don't have any C code to write, only one insn is being written,
450 and no MATCH_DUPs are present, we can just return the desired insn
451 like we do for a DEFINE_INSN. This saves memory. */
452 if ((XSTR (expand
, 3) == 0 || *XSTR (expand
, 3) == '\0')
453 && operands
> max_dup_opno
454 && XVECLEN (expand
, 1) == 1)
457 gen_exp (XVECEXP (expand
, 1, 0), DEFINE_EXPAND
);
462 /* For each operand referred to only with MATCH_DUPs,
463 make a local variable. */
464 for (i
= operands
; i
<= max_dup_opno
; i
++)
465 printf (" rtx operand%d;\n", i
);
466 for (; i
<= max_scratch_opno
; i
++)
467 printf (" rtx operand%d;\n", i
);
468 printf (" rtx _val = 0;\n");
469 printf (" start_sequence ();\n");
471 /* The fourth operand of DEFINE_EXPAND is some code to be executed
472 before the actual construction.
473 This code expects to refer to `operands'
474 just as the output-code in a DEFINE_INSN does,
475 but here `operands' is an automatic array.
476 So copy the operand values there before executing it. */
477 if (XSTR (expand
, 3) && *XSTR (expand
, 3))
480 if (operands
> 0 || max_dup_opno
>= 0 || max_scratch_opno
>= 0)
481 printf (" rtx operands[%d];\n",
482 MAX (operands
, MAX (max_scratch_opno
, max_dup_opno
) + 1));
483 /* Output code to copy the arguments into `operands'. */
484 for (i
= 0; i
< operands
; i
++)
485 printf (" operands[%d] = operand%d;\n", i
, i
);
487 /* Output the special code to be executed before the sequence
489 printf ("%s\n", XSTR (expand
, 3));
491 /* Output code to copy the arguments back out of `operands'
492 (unless we aren't going to use them at all). */
493 if (XVEC (expand
, 1) != 0)
495 for (i
= 0; i
< operands
; i
++)
496 printf (" operand%d = operands[%d];\n", i
, i
);
497 for (; i
<= max_dup_opno
; i
++)
498 printf (" operand%d = operands[%d];\n", i
, i
);
499 for (; i
<= max_scratch_opno
; i
++)
500 printf (" operand%d = operands[%d];\n", i
, i
);
505 /* Output code to construct the rtl for the instruction bodies.
506 Use emit_insn to add them to the sequence being accumulated.
507 But don't do this if the user's code has set `no_more' nonzero. */
509 for (i
= 0; i
< XVECLEN (expand
, 1); i
++)
511 rtx next
= XVECEXP (expand
, 1, i
);
512 if ((GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
)
513 || (GET_CODE (next
) == PARALLEL
514 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
515 && GET_CODE (SET_DEST (XVECEXP (next
, 0, 0))) == PC
)
516 || GET_CODE (next
) == RETURN
)
517 printf (" emit_jump_insn (");
518 else if ((GET_CODE (next
) == SET
&& GET_CODE (SET_SRC (next
)) == CALL
)
519 || GET_CODE (next
) == CALL
520 || (GET_CODE (next
) == PARALLEL
521 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
522 && GET_CODE (SET_SRC (XVECEXP (next
, 0, 0))) == CALL
)
523 || (GET_CODE (next
) == PARALLEL
524 && GET_CODE (XVECEXP (next
, 0, 0)) == CALL
))
525 printf (" emit_call_insn (");
526 else if (GET_CODE (next
) == CODE_LABEL
)
527 printf (" emit_label (");
528 else if (GET_CODE (next
) == MATCH_OPERAND
529 || GET_CODE (next
) == MATCH_DUP
530 || GET_CODE (next
) == MATCH_OPERATOR
531 || GET_CODE (next
) == MATCH_OP_DUP
532 || GET_CODE (next
) == MATCH_PARALLEL
533 || GET_CODE (next
) == MATCH_PAR_DUP
534 || GET_CODE (next
) == PARALLEL
)
537 printf (" emit_insn (");
538 gen_exp (next
, DEFINE_EXPAND
);
540 if (GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
541 && GET_CODE (SET_SRC (next
)) == LABEL_REF
)
542 printf (" emit_barrier ();");
545 /* Call `gen_sequence' to make a SEQUENCE out of all the
546 insns emitted within this gen_... function. */
548 printf (" _val = gen_sequence ();\n");
549 printf (" end_sequence ();\n");
550 printf (" return _val;\n}\n\n");
553 /* Like gen_expand, but generates a SEQUENCE. */
561 const char *const name
=
562 ((GET_CODE (split
) == DEFINE_PEEPHOLE2
) ? "peephole2" : "split");
565 if (XVEC (split
, 0) == 0)
566 fatal ("define_%s (definition %d) lacks a pattern", name
,
568 else if (XVEC (split
, 2) == 0)
569 fatal ("define_%s (definition %d) lacks a replacement pattern", name
,
572 /* Find out how many operands this function has. */
574 max_operand_vec (split
, 2);
575 operands
= MAX (max_opno
, MAX (max_dup_opno
, max_scratch_opno
)) + 1;
576 unused
= (operands
== 0 ? " ATTRIBUTE_UNUSED" : "");
578 /* Output the prototype, function name and argument declarations. */
579 if (GET_CODE (split
) == DEFINE_PEEPHOLE2
)
581 printf ("extern rtx gen_%s_%d PARAMS ((rtx, rtx *));\n",
582 name
, insn_code_number
);
583 printf ("rtx\ngen_%s_%d (curr_insn, operands)\n",
584 name
, insn_code_number
);
585 printf (" rtx curr_insn ATTRIBUTE_UNUSED;\n");
586 printf (" rtx *operands%s;\n", unused
);
590 printf ("extern rtx gen_split_%d PARAMS ((rtx *));\n", insn_code_number
);
591 printf ("rtx\ngen_%s_%d (operands)\n", name
, insn_code_number
);
592 printf (" rtx *operands%s;\n", unused
);
596 /* Declare all local variables. */
597 for (i
= 0; i
< operands
; i
++)
598 printf (" rtx operand%d;\n", i
);
599 printf (" rtx _val = 0;\n");
601 if (GET_CODE (split
) == DEFINE_PEEPHOLE2
)
602 output_peephole2_scratches (split
);
604 printf (" start_sequence ();\n");
606 /* The fourth operand of DEFINE_SPLIT is some code to be executed
607 before the actual construction. */
610 printf ("%s\n", XSTR (split
, 3));
612 /* Output code to copy the arguments back out of `operands' */
613 for (i
= 0; i
< operands
; i
++)
614 printf (" operand%d = operands[%d];\n", i
, i
);
616 /* Output code to construct the rtl for the instruction bodies.
617 Use emit_insn to add them to the sequence being accumulated.
618 But don't do this if the user's code has set `no_more' nonzero. */
620 for (i
= 0; i
< XVECLEN (split
, 2); i
++)
622 rtx next
= XVECEXP (split
, 2, i
);
623 if ((GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
)
624 || (GET_CODE (next
) == PARALLEL
625 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
626 && GET_CODE (SET_DEST (XVECEXP (next
, 0, 0))) == PC
)
627 || GET_CODE (next
) == RETURN
)
628 printf (" emit_jump_insn (");
629 else if ((GET_CODE (next
) == SET
&& GET_CODE (SET_SRC (next
)) == CALL
)
630 || GET_CODE (next
) == CALL
631 || (GET_CODE (next
) == PARALLEL
632 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
633 && GET_CODE (SET_SRC (XVECEXP (next
, 0, 0))) == CALL
)
634 || (GET_CODE (next
) == PARALLEL
635 && GET_CODE (XVECEXP (next
, 0, 0)) == CALL
))
636 printf (" emit_call_insn (");
637 else if (GET_CODE (next
) == CODE_LABEL
)
638 printf (" emit_label (");
639 else if (GET_CODE (next
) == MATCH_OPERAND
640 || GET_CODE (next
) == MATCH_OPERATOR
641 || GET_CODE (next
) == MATCH_PARALLEL
642 || GET_CODE (next
) == MATCH_OP_DUP
643 || GET_CODE (next
) == MATCH_DUP
644 || GET_CODE (next
) == PARALLEL
)
647 printf (" emit_insn (");
648 gen_exp (next
, GET_CODE (split
));
650 if (GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
651 && GET_CODE (SET_SRC (next
)) == LABEL_REF
)
652 printf (" emit_barrier ();");
655 /* Call `gen_sequence' to make a SEQUENCE out of all the
656 insns emitted within this gen_... function. */
658 printf (" _val = gen_sequence ();\n");
659 printf (" end_sequence ();\n");
660 printf (" return _val;\n}\n\n");
663 /* Write a function, `add_clobbers', that is given a PARALLEL of sufficient
664 size for the insn and an INSN_CODE, and inserts the required CLOBBERs at
665 the end of the vector. */
668 output_add_clobbers ()
670 struct clobber_pat
*clobber
;
671 struct clobber_ent
*ent
;
674 printf ("\n\nvoid\nadd_clobbers (pattern, insn_code_number)\n");
675 printf (" rtx pattern ATTRIBUTE_UNUSED;\n int insn_code_number;\n");
677 printf (" switch (insn_code_number)\n");
680 for (clobber
= clobber_list
; clobber
; clobber
= clobber
->next
)
682 for (ent
= clobber
->insns
; ent
; ent
= ent
->next
)
683 printf (" case %d:\n", ent
->code_number
);
685 for (i
= clobber
->first_clobber
; i
< XVECLEN (clobber
->pattern
, 1); i
++)
687 printf (" XVECEXP (pattern, 0, %d) = ", i
);
688 gen_exp (XVECEXP (clobber
->pattern
, 1, i
),
689 GET_CODE (clobber
->pattern
));
693 printf (" break;\n\n");
696 printf (" default:\n");
697 printf (" abort ();\n");
702 /* Write a function, `added_clobbers_hard_reg_p' this is given an insn_code
703 number that needs clobbers and returns 1 if they include a clobber of a
704 hard reg and 0 if they just clobber SCRATCH. */
707 output_added_clobbers_hard_reg_p ()
709 struct clobber_pat
*clobber
;
710 struct clobber_ent
*ent
;
713 printf ("\n\nint\nadded_clobbers_hard_reg_p (insn_code_number)\n");
714 printf (" int insn_code_number;\n");
716 printf (" switch (insn_code_number)\n");
719 for (clobber_p
= 0; clobber_p
<= 1; clobber_p
++)
721 for (clobber
= clobber_list
; clobber
; clobber
= clobber
->next
)
722 if (clobber
->has_hard_reg
== clobber_p
)
723 for (ent
= clobber
->insns
; ent
; ent
= ent
->next
)
724 printf (" case %d:\n", ent
->code_number
);
726 printf (" return %d;\n\n", clobber_p
);
729 printf (" default:\n");
730 printf (" abort ();\n");
735 /* Generate code to invoke find_free_register () as needed for the
736 scratch registers used by the peephole2 pattern in SPLIT. */
739 output_peephole2_scratches (split
)
745 printf (" HARD_REG_SET _regs_allocated;\n");
746 printf (" CLEAR_HARD_REG_SET (_regs_allocated);\n");
748 for (i
= 0; i
< XVECLEN (split
, 0); i
++)
750 rtx elt
= XVECEXP (split
, 0, i
);
751 if (GET_CODE (elt
) == MATCH_SCRATCH
)
753 int last_insn_nr
= insn_nr
;
754 int cur_insn_nr
= insn_nr
;
756 for (j
= i
+ 1; j
< XVECLEN (split
, 0); j
++)
757 if (GET_CODE (XVECEXP (split
, 0, j
)) == MATCH_DUP
)
759 if (XINT (XVECEXP (split
, 0, j
), 0) == XINT (elt
, 0))
760 last_insn_nr
= cur_insn_nr
;
762 else if (GET_CODE (XVECEXP (split
, 0, j
)) != MATCH_SCRATCH
)
765 printf (" if ((operands[%d] = peep2_find_free_register (%d, %d, \"%s\", %smode, &_regs_allocated)) == NULL_RTX)\n\
768 insn_nr
, last_insn_nr
,
770 GET_MODE_NAME (GET_MODE (elt
)));
773 else if (GET_CODE (elt
) != MATCH_DUP
)
778 extern int main
PARAMS ((int, char **));
787 progname
= "genemit";
790 fatal ("No input file name.");
792 if (init_md_reader_args (argc
, argv
) != SUCCESS_EXIT_CODE
)
793 return (FATAL_EXIT_CODE
);
795 /* Assign sequential codes to all entries in the machine description
796 in parallel with the tables in insn-output.c. */
798 insn_code_number
= 0;
799 insn_index_number
= 0;
801 printf ("/* Generated automatically by the program `genemit'\n\
802 from the machine description file `md'. */\n\n");
804 printf ("#include \"config.h\"\n");
805 printf ("#include \"system.h\"\n");
806 printf ("#include \"rtl.h\"\n");
807 printf ("#include \"tm_p.h\"\n");
808 printf ("#include \"function.h\"\n");
809 printf ("#include \"expr.h\"\n");
810 printf ("#include \"optabs.h\"\n");
811 printf ("#include \"real.h\"\n");
812 printf ("#include \"flags.h\"\n");
813 printf ("#include \"output.h\"\n");
814 printf ("#include \"insn-config.h\"\n");
815 printf ("#include \"hard-reg-set.h\"\n");
816 printf ("#include \"recog.h\"\n");
817 printf ("#include \"resource.h\"\n");
818 printf ("#include \"reload.h\"\n");
819 printf ("#include \"toplev.h\"\n");
820 printf ("#include \"ggc.h\"\n\n");
821 printf ("#define FAIL return (end_sequence (), _val)\n");
822 printf ("#define DONE return (_val = gen_sequence (), end_sequence (), _val)\n");
824 /* Read the machine description. */
830 desc
= read_md_rtx (&line_no
, &insn_code_number
);
834 switch (GET_CODE (desc
))
848 case DEFINE_PEEPHOLE2
:
858 /* Write out the routines to add CLOBBERs to a pattern and say whether they
859 clobber a hard reg. */
860 output_add_clobbers ();
861 output_added_clobbers_hard_reg_p ();
864 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
867 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
870 int code ATTRIBUTE_UNUSED
;