1 /* Generate code from machine description to emit insns as rtl.
2 Copyright (C) 1987, 88, 91, 94, 95, 97, 98, 1999 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
28 static struct obstack obstack
;
29 struct obstack
*rtl_obstack
= &obstack
;
31 #define obstack_chunk_alloc xmalloc
32 #define obstack_chunk_free free
35 static int max_dup_opno
;
36 static int max_scratch_opno
;
37 static int register_constraints
;
38 static int insn_code_number
;
39 static int insn_index_number
;
41 /* Data structure for recording the patterns of insns that have CLOBBERs.
42 We use this to output a function that adds these CLOBBERs to a
43 previously-allocated PARALLEL expression. */
47 struct clobber_ent
*insns
;
50 struct clobber_pat
*next
;
53 /* Records one insn that uses the clobber list. */
57 int code_number
; /* Counts only insns. */
58 struct clobber_ent
*next
;
61 static void max_operand_1
PROTO((rtx
));
62 static int max_operand_vec
PROTO((rtx
, int));
63 static void print_code
PROTO((RTX_CODE
));
64 static void gen_exp
PROTO((rtx
, enum rtx_code
));
65 static void gen_insn
PROTO((rtx
));
66 static void gen_expand
PROTO((rtx
));
67 static void gen_split
PROTO((rtx
));
68 static void output_add_clobbers
PROTO((void));
69 static void gen_rtx_scratch
PROTO((rtx
, enum rtx_code
));
70 static void output_peephole2_scratches
PROTO((rtx
));
77 register RTX_CODE code
;
80 register const char *fmt
;
87 if (code
== MATCH_OPERAND
&& XSTR (x
, 2) != 0 && *XSTR (x
, 2) != '\0')
88 register_constraints
= 1;
89 if (code
== MATCH_SCRATCH
&& XSTR (x
, 1) != 0 && *XSTR (x
, 1) != '\0')
90 register_constraints
= 1;
91 if (code
== MATCH_OPERAND
|| code
== MATCH_OPERATOR
92 || code
== MATCH_PARALLEL
)
93 max_opno
= MAX (max_opno
, XINT (x
, 0));
94 if (code
== MATCH_DUP
|| code
== MATCH_OP_DUP
|| code
== MATCH_PAR_DUP
)
95 max_dup_opno
= MAX (max_dup_opno
, XINT (x
, 0));
96 if (code
== MATCH_SCRATCH
)
97 max_scratch_opno
= MAX (max_scratch_opno
, XINT (x
, 0));
99 fmt
= GET_RTX_FORMAT (code
);
100 len
= GET_RTX_LENGTH (code
);
101 for (i
= 0; i
< len
; i
++)
103 if (fmt
[i
] == 'e' || fmt
[i
] == 'u')
104 max_operand_1 (XEXP (x
, i
));
105 else if (fmt
[i
] == 'E')
108 for (j
= 0; j
< XVECLEN (x
, i
); j
++)
109 max_operand_1 (XVECEXP (x
, i
, j
));
115 max_operand_vec (insn
, arg
)
119 register int len
= XVECLEN (insn
, arg
);
124 max_scratch_opno
= -1;
126 for (i
= 0; i
< len
; i
++)
127 max_operand_1 (XVECEXP (insn
, arg
, i
));
136 register const char *p1
;
137 for (p1
= GET_RTX_NAME (code
); *p1
; p1
++)
140 putchar (toupper(*p1
));
147 gen_rtx_scratch (x
, subroutine_type
)
149 enum rtx_code subroutine_type
;
151 if (subroutine_type
== DEFINE_PEEPHOLE2
)
153 printf ("operand%d", XINT (x
, 0));
157 printf ("gen_rtx_SCRATCH (%smode)", GET_MODE_NAME (GET_MODE (x
)));
161 /* Print a C expression to construct an RTX just like X,
162 substituting any operand references appearing within. */
165 gen_exp (x
, subroutine_type
)
167 enum rtx_code subroutine_type
;
169 register RTX_CODE code
;
172 register const char *fmt
;
186 printf ("operand%d", XINT (x
, 0));
190 printf ("gen_rtx (GET_CODE (operand%d), ", XINT (x
, 0));
191 if (GET_MODE (x
) == VOIDmode
)
192 printf ("GET_MODE (operand%d)", XINT (x
, 0));
194 printf ("%smode", GET_MODE_NAME (GET_MODE (x
)));
195 for (i
= 0; i
< XVECLEN (x
, 1); i
++)
198 gen_exp (XVECEXP (x
, 1, i
), subroutine_type
);
204 printf ("gen_rtx (GET_CODE (operand%d)", XINT (x
, 0));
205 printf (", %smode", GET_MODE_NAME (GET_MODE (x
)));
206 for (i
= 0; i
< XVECLEN (x
, 2); i
++)
209 gen_exp (XVECEXP (x
, 2, i
), subroutine_type
);
216 printf ("operand%d", XINT (x
, 0));
220 gen_rtx_scratch (x
, subroutine_type
);
224 fatal ("ADDRESS expression code used in named instruction pattern");
236 printf ("const0_rtx");
237 else if (INTVAL (x
) == 1)
238 printf ("const1_rtx");
239 else if (INTVAL (x
) == -1)
240 printf ("constm1_rtx");
241 else if (INTVAL (x
) == STORE_FLAG_VALUE
)
242 printf ("const_true_rtx");
245 printf ("GEN_INT (");
246 printf (HOST_WIDE_INT_PRINT_DEC
, INTVAL (x
));
252 /* These shouldn't be written in MD files. Instead, the appropriate
253 routines in varasm.c should be called. */
262 printf (" (%smode", GET_MODE_NAME (GET_MODE (x
)));
264 fmt
= GET_RTX_FORMAT (code
);
265 len
= GET_RTX_LENGTH (code
);
266 for (i
= 0; i
< len
; i
++)
271 if (fmt
[i
] == 'e' || fmt
[i
] == 'u')
272 gen_exp (XEXP (x
, i
), subroutine_type
);
273 else if (fmt
[i
] == 'i')
274 printf ("%u", XINT (x
, i
));
275 else if (fmt
[i
] == 's')
276 printf ("\"%s\"", XSTR (x
, i
));
277 else if (fmt
[i
] == 'E')
280 printf ("gen_rtvec (%d", XVECLEN (x
, i
));
281 for (j
= 0; j
< XVECLEN (x
, i
); j
++)
284 gen_exp (XVECEXP (x
, i
, j
), subroutine_type
);
294 /* Generate the `gen_...' function for a DEFINE_INSN. */
303 /* See if the pattern for this insn ends with a group of CLOBBERs of (hard)
304 registers or MATCH_SCRATCHes. If so, store away the information for
309 for (i
= XVECLEN (insn
, 1) - 1; i
> 0; i
--)
310 if (GET_CODE (XVECEXP (insn
, 1, i
)) != CLOBBER
311 || (GET_CODE (XEXP (XVECEXP (insn
, 1, i
), 0)) != REG
312 && GET_CODE (XEXP (XVECEXP (insn
, 1, i
), 0)) != MATCH_SCRATCH
))
315 if (i
!= XVECLEN (insn
, 1) - 1)
317 register struct clobber_pat
*p
;
318 register 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
;
364 link
->next
= p
->insns
;
369 /* Don't mention instructions whose names are the null string
370 or begin with '*'. They are in the machine description just
372 if (XSTR (insn
, 0)[0] == 0 || XSTR (insn
, 0)[0] == '*')
375 /* Find out how many operands this function has,
376 and also whether any of them have register constraints. */
377 register_constraints
= 0;
378 operands
= max_operand_vec (insn
, 1);
379 if (max_dup_opno
>= operands
)
380 fatal ("match_dup operand number has no match_operand");
382 /* Output the function name and argument declarations. */
383 printf ("rtx\ngen_%s (", XSTR (insn
, 0));
384 for (i
= 0; i
< operands
; i
++)
385 printf (i
? ", operand%d" : "operand%d", i
);
387 for (i
= 0; i
< operands
; i
++)
388 printf (" rtx operand%d;\n", i
);
391 /* Output code to construct and return the rtl for the instruction body */
393 if (XVECLEN (insn
, 1) == 1)
396 gen_exp (XVECEXP (insn
, 1, 0), DEFINE_INSN
);
401 printf (" return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (%d",
404 for (i
= 0; i
< XVECLEN (insn
, 1); i
++)
407 gen_exp (XVECEXP (insn
, 1, i
), DEFINE_INSN
);
409 printf ("));\n}\n\n");
413 /* Generate the `gen_...' function for a DEFINE_EXPAND. */
422 if (strlen (XSTR (expand
, 0)) == 0)
423 fatal ("define_expand lacks a name");
424 if (XVEC (expand
, 1) == 0)
425 fatal ("define_expand for %s lacks a pattern", XSTR (expand
, 0));
427 /* Find out how many operands this function has,
428 and also whether any of them have register constraints. */
429 register_constraints
= 0;
431 operands
= max_operand_vec (expand
, 1);
433 /* Output the function name and argument declarations. */
434 printf ("rtx\ngen_%s (", XSTR (expand
, 0));
435 for (i
= 0; i
< operands
; i
++)
436 printf (i
? ", operand%d" : "operand%d", i
);
438 for (i
= 0; i
< operands
; i
++)
439 printf (" rtx operand%d;\n", i
);
442 /* If we don't have any C code to write, only one insn is being written,
443 and no MATCH_DUPs are present, we can just return the desired insn
444 like we do for a DEFINE_INSN. This saves memory. */
445 if ((XSTR (expand
, 3) == 0 || *XSTR (expand
, 3) == '\0')
446 && operands
> max_dup_opno
447 && XVECLEN (expand
, 1) == 1)
450 gen_exp (XVECEXP (expand
, 1, 0), DEFINE_EXPAND
);
455 /* For each operand referred to only with MATCH_DUPs,
456 make a local variable. */
457 for (i
= operands
; i
<= max_dup_opno
; i
++)
458 printf (" rtx operand%d;\n", i
);
459 for (; i
<= max_scratch_opno
; i
++)
460 printf (" rtx operand%d;\n", i
);
461 printf (" rtx _val = 0;\n");
462 printf (" start_sequence ();\n");
464 /* The fourth operand of DEFINE_EXPAND is some code to be executed
465 before the actual construction.
466 This code expects to refer to `operands'
467 just as the output-code in a DEFINE_INSN does,
468 but here `operands' is an automatic array.
469 So copy the operand values there before executing it. */
470 if (XSTR (expand
, 3) && *XSTR (expand
, 3))
473 if (operands
> 0 || max_dup_opno
>= 0 || max_scratch_opno
>= 0)
474 printf (" rtx operands[%d];\n",
475 MAX (operands
, MAX (max_scratch_opno
, max_dup_opno
) + 1));
476 /* Output code to copy the arguments into `operands'. */
477 for (i
= 0; i
< operands
; i
++)
478 printf (" operands[%d] = operand%d;\n", i
, i
);
480 /* Output the special code to be executed before the sequence
482 printf ("%s\n", XSTR (expand
, 3));
484 /* Output code to copy the arguments back out of `operands'
485 (unless we aren't going to use them at all). */
486 if (XVEC (expand
, 1) != 0)
488 for (i
= 0; i
< operands
; i
++)
489 printf (" operand%d = operands[%d];\n", i
, i
);
490 for (; i
<= max_dup_opno
; i
++)
491 printf (" operand%d = operands[%d];\n", i
, i
);
492 for (; i
<= max_scratch_opno
; i
++)
493 printf (" operand%d = operands[%d];\n", i
, i
);
498 /* Output code to construct the rtl for the instruction bodies.
499 Use emit_insn to add them to the sequence being accumulated.
500 But don't do this if the user's code has set `no_more' nonzero. */
502 for (i
= 0; i
< XVECLEN (expand
, 1); i
++)
504 rtx next
= XVECEXP (expand
, 1, i
);
505 if ((GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
)
506 || (GET_CODE (next
) == PARALLEL
507 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
508 && GET_CODE (SET_DEST (XVECEXP (next
, 0, 0))) == PC
)
509 || GET_CODE (next
) == RETURN
)
510 printf (" emit_jump_insn (");
511 else if ((GET_CODE (next
) == SET
&& GET_CODE (SET_SRC (next
)) == CALL
)
512 || GET_CODE (next
) == CALL
513 || (GET_CODE (next
) == PARALLEL
514 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
515 && GET_CODE (SET_SRC (XVECEXP (next
, 0, 0))) == CALL
)
516 || (GET_CODE (next
) == PARALLEL
517 && GET_CODE (XVECEXP (next
, 0, 0)) == CALL
))
518 printf (" emit_call_insn (");
519 else if (GET_CODE (next
) == CODE_LABEL
)
520 printf (" emit_label (");
521 else if (GET_CODE (next
) == MATCH_OPERAND
522 || GET_CODE (next
) == MATCH_DUP
523 || GET_CODE (next
) == MATCH_OPERATOR
524 || GET_CODE (next
) == MATCH_OP_DUP
525 || GET_CODE (next
) == MATCH_PARALLEL
526 || GET_CODE (next
) == MATCH_PAR_DUP
527 || GET_CODE (next
) == PARALLEL
)
530 printf (" emit_insn (");
531 gen_exp (next
, DEFINE_EXPAND
);
533 if (GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
534 && GET_CODE (SET_SRC (next
)) == LABEL_REF
)
535 printf (" emit_barrier ();");
538 /* Call `gen_sequence' to make a SEQUENCE out of all the
539 insns emitted within this gen_... function. */
541 printf (" _val = gen_sequence ();\n");
542 printf (" end_sequence ();\n");
543 printf (" return _val;\n}\n\n");
546 /* Like gen_expand, but generates a SEQUENCE. */
554 const char *name
= "split";
556 if (GET_CODE (split
) == DEFINE_PEEPHOLE2
)
559 if (XVEC (split
, 0) == 0)
560 fatal ("define_%s (definition %d) lacks a pattern", name
,
562 else if (XVEC (split
, 2) == 0)
563 fatal ("define_%s (definition %d) lacks a replacement pattern", name
,
566 /* Find out how many operands this function has. */
568 max_operand_vec (split
, 2);
569 operands
= MAX (max_opno
, MAX (max_dup_opno
, max_scratch_opno
)) + 1;
571 /* Output the prototype, function name and argument declarations. */
572 if (GET_CODE (split
) == DEFINE_PEEPHOLE2
)
574 printf ("extern rtx gen_%s_%d PROTO ((rtx, rtx *));\n",
575 name
, insn_code_number
);
576 printf ("rtx\ngen_%s_%d (curr_insn, operands)\n\
577 rtx curr_insn ATTRIBUTE_UNUSED;\n\
579 name
, insn_code_number
);
583 printf ("extern rtx gen_split_%d PROTO ((rtx *));\n", insn_code_number
);
584 printf ("rtx\ngen_%s_%d (operands)\n rtx *operands;\n", name
,
589 /* Declare all local variables. */
590 for (i
= 0; i
< operands
; i
++)
591 printf (" rtx operand%d;\n", i
);
592 printf (" rtx _val = 0;\n");
594 if (GET_CODE (split
) == DEFINE_PEEPHOLE2
)
595 output_peephole2_scratches (split
);
597 printf (" start_sequence ();\n");
599 /* The fourth operand of DEFINE_SPLIT is some code to be executed
600 before the actual construction. */
603 printf ("%s\n", XSTR (split
, 3));
605 /* Output code to copy the arguments back out of `operands' */
606 for (i
= 0; i
< operands
; i
++)
607 printf (" operand%d = operands[%d];\n", i
, i
);
609 /* Output code to construct the rtl for the instruction bodies.
610 Use emit_insn to add them to the sequence being accumulated.
611 But don't do this if the user's code has set `no_more' nonzero. */
613 for (i
= 0; i
< XVECLEN (split
, 2); i
++)
615 rtx next
= XVECEXP (split
, 2, i
);
616 if ((GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
)
617 || (GET_CODE (next
) == PARALLEL
618 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
619 && GET_CODE (SET_DEST (XVECEXP (next
, 0, 0))) == PC
)
620 || GET_CODE (next
) == RETURN
)
621 printf (" emit_jump_insn (");
622 else if ((GET_CODE (next
) == SET
&& GET_CODE (SET_SRC (next
)) == CALL
)
623 || GET_CODE (next
) == CALL
624 || (GET_CODE (next
) == PARALLEL
625 && GET_CODE (XVECEXP (next
, 0, 0)) == SET
626 && GET_CODE (SET_SRC (XVECEXP (next
, 0, 0))) == CALL
)
627 || (GET_CODE (next
) == PARALLEL
628 && GET_CODE (XVECEXP (next
, 0, 0)) == CALL
))
629 printf (" emit_call_insn (");
630 else if (GET_CODE (next
) == CODE_LABEL
)
631 printf (" emit_label (");
632 else if (GET_CODE (next
) == MATCH_OPERAND
633 || GET_CODE (next
) == MATCH_OPERATOR
634 || GET_CODE (next
) == MATCH_PARALLEL
635 || GET_CODE (next
) == MATCH_OP_DUP
636 || GET_CODE (next
) == MATCH_DUP
637 || GET_CODE (next
) == PARALLEL
)
640 printf (" emit_insn (");
641 gen_exp (next
, GET_CODE (split
));
643 if (GET_CODE (next
) == SET
&& GET_CODE (SET_DEST (next
)) == PC
644 && GET_CODE (SET_SRC (next
)) == LABEL_REF
)
645 printf (" emit_barrier ();");
648 /* Call `gen_sequence' to make a SEQUENCE out of all the
649 insns emitted within this gen_... function. */
651 printf (" _val = gen_sequence ();\n");
652 printf (" end_sequence ();\n");
653 printf (" return _val;\n}\n\n");
656 /* Write a function, `add_clobbers', that is given a PARALLEL of sufficient
657 size for the insn and an INSN_CODE, and inserts the required CLOBBERs at
658 the end of the vector. */
661 output_add_clobbers ()
663 struct clobber_pat
*clobber
;
664 struct clobber_ent
*ent
;
667 printf ("\n\nvoid\nadd_clobbers (pattern, insn_code_number)\n");
668 printf (" rtx pattern;\n int insn_code_number;\n");
670 printf (" switch (insn_code_number)\n");
673 for (clobber
= clobber_list
; clobber
; clobber
= clobber
->next
)
675 for (ent
= clobber
->insns
; ent
; ent
= ent
->next
)
676 printf (" case %d:\n", ent
->code_number
);
678 for (i
= clobber
->first_clobber
; i
< XVECLEN (clobber
->pattern
, 1); i
++)
680 printf (" XVECEXP (pattern, 0, %d) = ", i
);
681 gen_exp (XVECEXP (clobber
->pattern
, 1, i
),
682 GET_CODE (clobber
->pattern
));
686 printf (" break;\n\n");
689 printf (" default:\n");
690 printf (" abort ();\n");
695 /* Generate code to invoke find_free_register () as needed for the
696 scratch registers used by the peephole2 pattern in SPLIT. */
699 output_peephole2_scratches (split
)
705 printf (" rtx first_insn ATTRIBUTE_UNUSED;\n");
706 printf (" rtx last_insn ATTRIBUTE_UNUSED;\n");
707 printf (" HARD_REG_SET _regs_allocated;\n");
709 printf (" CLEAR_HARD_REG_SET (_regs_allocated);\n");
711 for (i
= 0; i
< XVECLEN (split
, 0); i
++)
713 rtx elt
= XVECEXP (split
, 0, i
);
714 if (GET_CODE (elt
) == MATCH_SCRATCH
)
716 int last_insn_nr
= insn_nr
;
717 int cur_insn_nr
= insn_nr
;
719 for (j
= i
+ 1; j
< XVECLEN (split
, 0); j
++)
720 if (GET_CODE (XVECEXP (split
, 0, j
)) == MATCH_DUP
)
722 if (XINT (XVECEXP (split
, 0, j
), 0) == XINT (elt
, 0))
723 last_insn_nr
= cur_insn_nr
;
725 else if (GET_CODE (XVECEXP (split
, 0, j
)) != MATCH_SCRATCH
)
727 printf (" first_insn = recog_next_insn (curr_insn, %d);\n", insn_nr
);
728 if (last_insn_nr
> insn_nr
)
729 printf (" last_insn = recog_next_insn (curr_insn, %d);\n",
732 printf (" last_insn = 0;\n");
733 printf (" if ((operands[%d] = find_free_register (first_insn, last_insn, \"%s\", %smode, &_regs_allocated)) == NULL_RTX)\n\
737 GET_MODE_NAME (GET_MODE (elt
)));
740 else if (GET_CODE (elt
) != MATCH_DUP
)
749 register PTR val
= (PTR
) malloc (size
);
752 fatal ("virtual memory exhausted");
764 ptr
= (PTR
) realloc (old
, size
);
766 ptr
= (PTR
) malloc (size
);
768 fatal ("virtual memory exhausted");
772 extern int main
PROTO ((int, char **));
783 progname
= "genemit";
784 obstack_init (rtl_obstack
);
787 fatal ("No input file name.");
789 infile
= fopen (argv
[1], "r");
793 return (FATAL_EXIT_CODE
);
796 /* Assign sequential codes to all entries in the machine description
797 in parallel with the tables in insn-output.c. */
799 insn_code_number
= 0;
800 insn_index_number
= 0;
802 printf ("/* Generated automatically by the program `genemit'\n\
803 from the machine description file `md'. */\n\n");
805 printf ("#include \"config.h\"\n");
806 printf ("#include \"system.h\"\n");
807 printf ("#include \"rtl.h\"\n");
808 printf ("#include \"function.h\"\n");
809 printf ("#include \"expr.h\"\n");
810 printf ("#include \"real.h\"\n");
811 printf ("#include \"flags.h\"\n");
812 printf ("#include \"output.h\"\n");
813 printf ("#include \"insn-config.h\"\n");
814 printf ("#include \"insn-flags.h\"\n");
815 printf ("#include \"insn-codes.h\"\n");
816 printf ("#include \"recog.h\"\n");
817 printf ("#include \"hard-reg-set.h\"\n");
818 printf ("#include \"resource.h\"\n");
819 printf ("#include \"reload.h\"\n\n");
820 printf ("#define FAIL return (end_sequence (), _val)\n");
821 printf ("#define DONE return (_val = gen_sequence (), end_sequence (), _val)\n");
823 /* Read the machine description. */
827 c
= read_skip_spaces (infile
);
832 desc
= read_rtx (infile
);
834 if (GET_CODE (desc
) == DEFINE_INSN
)
839 if (GET_CODE (desc
) == DEFINE_EXPAND
)
844 if (GET_CODE (desc
) == DEFINE_SPLIT
)
849 if (GET_CODE (desc
) == DEFINE_PEEPHOLE2
)
854 if (GET_CODE (desc
) == DEFINE_PEEPHOLE
)
861 /* Write out the routine to add CLOBBERs to a pattern. */
862 output_add_clobbers ();
865 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
868 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
871 int code ATTRIBUTE_UNUSED
;