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 2003, 2004, 2005, 2007, 2008, 2009, 2010 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 3, 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 COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
24 #include "coretypes.h"
29 #include "gensupport.h"
33 static int max_dup_opno;
34 static int max_scratch_opno;
35 static int insn_code_number;
36 static int insn_index_number;
38 /* Data structure for recording the patterns of insns that have CLOBBERs.
39 We use this to output a function that adds these CLOBBERs to a
40 previously-allocated PARALLEL expression. */
44 struct clobber_ent *insns;
47 struct clobber_pat *next;
51 /* Records one insn that uses the clobber list. */
55 int code_number; /* Counts only insns. */
56 struct clobber_ent *next;
59 static void max_operand_1 (rtx);
60 static int max_operand_vec (rtx, int);
61 static void print_code (RTX_CODE);
62 static void gen_exp (rtx, enum rtx_code, char *);
63 static void gen_insn (rtx, int);
64 static void gen_expand (rtx);
65 static void gen_split (rtx);
66 static void output_add_clobbers (void);
67 static void output_added_clobbers_hard_reg_p (void);
68 static void gen_rtx_scratch (rtx, enum rtx_code);
69 static void output_peephole2_scratches (rtx);
85 if (code == MATCH_OPERAND || code == MATCH_OPERATOR
86 || code == MATCH_PARALLEL)
87 max_opno = MAX (max_opno, XINT (x, 0));
88 if (code == MATCH_DUP || code == MATCH_OP_DUP || code == MATCH_PAR_DUP)
89 max_dup_opno = MAX (max_dup_opno, XINT (x, 0));
90 if (code == MATCH_SCRATCH)
91 max_scratch_opno = MAX (max_scratch_opno, XINT (x, 0));
93 fmt = GET_RTX_FORMAT (code);
94 len = GET_RTX_LENGTH (code);
95 for (i = 0; i < len; i++)
97 if (fmt[i] == 'e' || fmt[i] == 'u')
98 max_operand_1 (XEXP (x, i));
99 else if (fmt[i] == 'E')
102 for (j = 0; j < XVECLEN (x, i); j++)
103 max_operand_1 (XVECEXP (x, i, j));
109 max_operand_vec (rtx insn, int arg)
111 int len = XVECLEN (insn, arg);
116 max_scratch_opno = -1;
118 for (i = 0; i < len; i++)
119 max_operand_1 (XVECEXP (insn, arg, i));
125 print_code (RTX_CODE code)
128 for (p1 = GET_RTX_NAME (code); *p1; p1++)
129 putchar (TOUPPER(*p1));
133 gen_rtx_scratch (rtx x, enum rtx_code subroutine_type)
135 if (subroutine_type == DEFINE_PEEPHOLE2)
137 printf ("operand%d", XINT (x, 0));
141 printf ("gen_rtx_SCRATCH (%smode)", GET_MODE_NAME (GET_MODE (x)));
145 /* Print a C expression to construct an RTX just like X,
146 substituting any operand references appearing within. */
149 gen_exp (rtx x, enum rtx_code subroutine_type, char *used)
170 if (used[XINT (x, 0)])
172 printf ("copy_rtx (operand%d)", XINT (x, 0));
175 used[XINT (x, 0)] = 1;
177 printf ("operand%d", XINT (x, 0));
181 printf ("gen_rtx_fmt_");
182 for (i = 0; i < XVECLEN (x, 1); i++)
184 printf (" (GET_CODE (operand%d), ", XINT (x, 0));
185 if (GET_MODE (x) == VOIDmode)
186 printf ("GET_MODE (operand%d)", XINT (x, 0));
188 printf ("%smode", GET_MODE_NAME (GET_MODE (x)));
189 for (i = 0; i < XVECLEN (x, 1); i++)
192 gen_exp (XVECEXP (x, 1, i), subroutine_type, used);
198 printf ("gen_rtx_fmt_");
199 for (i = 0; i < XVECLEN (x, 2); i++)
201 printf (" (GET_CODE (operand%d)", XINT (x, 0));
202 printf (", %smode", GET_MODE_NAME (GET_MODE (x)));
203 for (i = 0; i < XVECLEN (x, 2); i++)
206 gen_exp (XVECEXP (x, 2, i), subroutine_type, used);
213 printf ("operand%d", XINT (x, 0));
217 gen_rtx_scratch (x, subroutine_type);
221 fatal ("ADDRESS expression code used in named instruction pattern");
227 if (REG_P (XEXP (x, 0)))
229 printf ("gen_hard_reg_clobber (%smode, %i)", GET_MODE_NAME (GET_MODE (XEXP (x, 0))),
230 REGNO (XEXP (x, 0)));
241 printf ("const0_rtx");
242 else if (INTVAL (x) == 1)
243 printf ("const1_rtx");
244 else if (INTVAL (x) == -1)
245 printf ("constm1_rtx");
246 else if (-MAX_SAVED_CONST_INT <= INTVAL (x)
247 && INTVAL (x) <= MAX_SAVED_CONST_INT)
248 printf ("const_int_rtx[MAX_SAVED_CONST_INT + (%d)]",
250 else if (INTVAL (x) == STORE_FLAG_VALUE)
251 printf ("const_true_rtx");
254 printf ("GEN_INT (");
255 printf (HOST_WIDE_INT_PRINT_DEC_C, INTVAL (x));
262 /* These shouldn't be written in MD files. Instead, the appropriate
263 routines in varasm.c should be called. */
272 printf (" (%smode", GET_MODE_NAME (GET_MODE (x)));
274 fmt = GET_RTX_FORMAT (code);
275 len = GET_RTX_LENGTH (code);
276 for (i = 0; i < len; i++)
284 gen_exp (XEXP (x, i), subroutine_type, used);
288 printf ("%u", XINT (x, i));
292 printf ("\"%s\"", XSTR (x, i));
298 printf ("gen_rtvec (%d", XVECLEN (x, i));
299 for (j = 0; j < XVECLEN (x, i); j++)
302 gen_exp (XVECEXP (x, i, j), subroutine_type, used);
315 /* Generate the `gen_...' function for a DEFINE_INSN. */
318 gen_insn (rtx insn, int lineno)
323 /* See if the pattern for this insn ends with a group of CLOBBERs of (hard)
324 registers or MATCH_SCRATCHes. If so, store away the information for
329 int has_hard_reg = 0;
331 for (i = XVECLEN (insn, 1) - 1; i > 0; i--)
333 if (GET_CODE (XVECEXP (insn, 1, i)) != CLOBBER)
336 if (REG_P (XEXP (XVECEXP (insn, 1, i), 0)))
338 else if (GET_CODE (XEXP (XVECEXP (insn, 1, i), 0)) != MATCH_SCRATCH)
342 if (i != XVECLEN (insn, 1) - 1)
344 struct clobber_pat *p;
345 struct clobber_ent *link = XNEW (struct clobber_ent);
348 link->code_number = insn_code_number;
350 /* See if any previous CLOBBER_LIST entry is the same as this
353 for (p = clobber_list; p; p = p->next)
355 if (p->first_clobber != i + 1
356 || XVECLEN (p->pattern, 1) != XVECLEN (insn, 1))
359 for (j = i + 1; j < XVECLEN (insn, 1); j++)
361 rtx old_rtx = XEXP (XVECEXP (p->pattern, 1, j), 0);
362 rtx new_rtx = XEXP (XVECEXP (insn, 1, j), 0);
364 /* OLD and NEW_INSN are the same if both are to be a SCRATCH
366 or if both are registers of the same mode and number. */
367 if (! (GET_MODE (old_rtx) == GET_MODE (new_rtx)
368 && ((GET_CODE (old_rtx) == MATCH_SCRATCH
369 && GET_CODE (new_rtx) == MATCH_SCRATCH)
370 || (REG_P (old_rtx) && REG_P (new_rtx)
371 && REGNO (old_rtx) == REGNO (new_rtx)))))
375 if (j == XVECLEN (insn, 1))
381 p = XNEW (struct clobber_pat);
385 p->first_clobber = i + 1;
386 p->next = clobber_list;
387 p->has_hard_reg = has_hard_reg;
391 link->next = p->insns;
396 /* Don't mention instructions whose names are the null string
397 or begin with '*'. They are in the machine description just
399 if (XSTR (insn, 0)[0] == 0 || XSTR (insn, 0)[0] == '*')
402 printf ("/* %s:%d */\n", read_md_filename, lineno);
404 /* Find out how many operands this function has. */
405 operands = max_operand_vec (insn, 1);
406 if (max_dup_opno >= operands)
407 fatal ("match_dup operand number has no match_operand");
409 /* Output the function name and argument declarations. */
410 printf ("rtx\ngen_%s (", XSTR (insn, 0));
412 for (i = 0; i < operands; i++)
414 printf (",\n\trtx operand%d ATTRIBUTE_UNUSED", i);
416 printf ("rtx operand%d ATTRIBUTE_UNUSED", i);
422 /* Output code to construct and return the rtl for the instruction body. */
424 if (XVECLEN (insn, 1) == 1)
427 gen_exp (XVECEXP (insn, 1, 0), DEFINE_INSN, NULL);
432 char *used = XCNEWVEC (char, operands);
434 printf (" return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (%d",
437 for (i = 0; i < XVECLEN (insn, 1); i++)
440 gen_exp (XVECEXP (insn, 1, i), DEFINE_INSN, used);
442 printf ("));\n}\n\n");
447 /* Generate the `gen_...' function for a DEFINE_EXPAND. */
450 gen_expand (rtx expand)
456 if (strlen (XSTR (expand, 0)) == 0)
457 fatal ("define_expand lacks a name");
458 if (XVEC (expand, 1) == 0)
459 fatal ("define_expand for %s lacks a pattern", XSTR (expand, 0));
461 /* Find out how many operands this function has. */
462 operands = max_operand_vec (expand, 1);
464 /* Output the function name and argument declarations. */
465 printf ("rtx\ngen_%s (", XSTR (expand, 0));
467 for (i = 0; i < operands; i++)
469 printf (",\n\trtx operand%d", i);
471 printf ("rtx operand%d", i);
477 /* If we don't have any C code to write, only one insn is being written,
478 and no MATCH_DUPs are present, we can just return the desired insn
479 like we do for a DEFINE_INSN. This saves memory. */
480 if ((XSTR (expand, 3) == 0 || *XSTR (expand, 3) == '\0')
481 && operands > max_dup_opno
482 && XVECLEN (expand, 1) == 1)
485 gen_exp (XVECEXP (expand, 1, 0), DEFINE_EXPAND, NULL);
490 /* For each operand referred to only with MATCH_DUPs,
491 make a local variable. */
492 for (i = operands; i <= max_dup_opno; i++)
493 printf (" rtx operand%d;\n", i);
494 for (; i <= max_scratch_opno; i++)
495 printf (" rtx operand%d ATTRIBUTE_UNUSED;\n", i);
496 printf (" rtx _val = 0;\n");
497 printf (" start_sequence ();\n");
499 /* The fourth operand of DEFINE_EXPAND is some code to be executed
500 before the actual construction.
501 This code expects to refer to `operands'
502 just as the output-code in a DEFINE_INSN does,
503 but here `operands' is an automatic array.
504 So copy the operand values there before executing it. */
505 if (XSTR (expand, 3) && *XSTR (expand, 3))
508 if (operands > 0 || max_dup_opno >= 0 || max_scratch_opno >= 0)
509 printf (" rtx operands[%d];\n",
510 MAX (operands, MAX (max_scratch_opno, max_dup_opno) + 1));
511 /* Output code to copy the arguments into `operands'. */
512 for (i = 0; i < operands; i++)
513 printf (" operands[%d] = operand%d;\n", i, i);
515 /* Output the special code to be executed before the sequence
517 print_md_ptr_loc (XSTR (expand, 3));
518 printf ("%s\n", XSTR (expand, 3));
520 /* Output code to copy the arguments back out of `operands'
521 (unless we aren't going to use them at all). */
522 if (XVEC (expand, 1) != 0)
525 i < MAX (operands, MAX (max_scratch_opno, max_dup_opno) + 1);
528 printf (" operand%d = operands[%d];\n", i, i);
529 printf (" (void) operand%d;\n", i);
535 /* Output code to construct the rtl for the instruction bodies.
536 Use emit_insn to add them to the sequence being accumulated.
537 But don't do this if the user's code has set `no_more' nonzero. */
539 used = XCNEWVEC (char,
540 MAX (operands, MAX (max_scratch_opno, max_dup_opno) + 1));
542 for (i = 0; i < XVECLEN (expand, 1); i++)
544 rtx next = XVECEXP (expand, 1, i);
545 if ((GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC)
546 || (GET_CODE (next) == PARALLEL
547 && ((GET_CODE (XVECEXP (next, 0, 0)) == SET
548 && GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC)
549 || GET_CODE (XVECEXP (next, 0, 0)) == RETURN))
550 || GET_CODE (next) == RETURN)
551 printf (" emit_jump_insn (");
552 else if ((GET_CODE (next) == SET && GET_CODE (SET_SRC (next)) == CALL)
553 || GET_CODE (next) == CALL
554 || (GET_CODE (next) == PARALLEL
555 && GET_CODE (XVECEXP (next, 0, 0)) == SET
556 && GET_CODE (SET_SRC (XVECEXP (next, 0, 0))) == CALL)
557 || (GET_CODE (next) == PARALLEL
558 && GET_CODE (XVECEXP (next, 0, 0)) == CALL))
559 printf (" emit_call_insn (");
560 else if (LABEL_P (next))
561 printf (" emit_label (");
562 else if (GET_CODE (next) == MATCH_OPERAND
563 || GET_CODE (next) == MATCH_DUP
564 || GET_CODE (next) == MATCH_OPERATOR
565 || GET_CODE (next) == MATCH_OP_DUP
566 || GET_CODE (next) == MATCH_PARALLEL
567 || GET_CODE (next) == MATCH_PAR_DUP
568 || GET_CODE (next) == PARALLEL)
571 printf (" emit_insn (");
572 gen_exp (next, DEFINE_EXPAND, used);
574 if (GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC
575 && GET_CODE (SET_SRC (next)) == LABEL_REF)
576 printf (" emit_barrier ();");
581 /* Call `get_insns' to extract the list of all the
582 insns emitted within this gen_... function. */
584 printf (" _val = get_insns ();\n");
585 printf (" end_sequence ();\n");
586 printf (" return _val;\n}\n\n");
589 /* Like gen_expand, but generates insns resulting from splitting SPLIT. */
592 gen_split (rtx split)
596 const char *const name =
597 ((GET_CODE (split) == DEFINE_PEEPHOLE2) ? "peephole2" : "split");
601 if (XVEC (split, 0) == 0)
602 fatal ("define_%s (definition %d) lacks a pattern", name,
604 else if (XVEC (split, 2) == 0)
605 fatal ("define_%s (definition %d) lacks a replacement pattern", name,
608 /* Find out how many operands this function has. */
610 max_operand_vec (split, 2);
611 operands = MAX (max_opno, MAX (max_dup_opno, max_scratch_opno)) + 1;
612 unused = (operands == 0 ? " ATTRIBUTE_UNUSED" : "");
613 used = XCNEWVEC (char, operands);
615 /* Output the prototype, function name and argument declarations. */
616 if (GET_CODE (split) == DEFINE_PEEPHOLE2)
618 printf ("extern rtx gen_%s_%d (rtx, rtx *);\n",
619 name, insn_code_number);
620 printf ("rtx\ngen_%s_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n",
621 name, insn_code_number, unused);
625 printf ("extern rtx gen_split_%d (rtx, rtx *);\n", insn_code_number);
626 printf ("rtx\ngen_split_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n",
627 insn_code_number, unused);
631 /* Declare all local variables. */
632 for (i = 0; i < operands; i++)
633 printf (" rtx operand%d;\n", i);
634 printf (" rtx _val = 0;\n");
636 if (GET_CODE (split) == DEFINE_PEEPHOLE2)
637 output_peephole2_scratches (split);
639 printf (" start_sequence ();\n");
641 /* The fourth operand of DEFINE_SPLIT is some code to be executed
642 before the actual construction. */
646 print_md_ptr_loc (XSTR (split, 3));
647 printf ("%s\n", XSTR (split, 3));
650 /* Output code to copy the arguments back out of `operands' */
651 for (i = 0; i < operands; i++)
653 printf (" operand%d = operands[%d];\n", i, i);
654 printf (" (void) operand%d;\n", i);
657 /* Output code to construct the rtl for the instruction bodies.
658 Use emit_insn to add them to the sequence being accumulated.
659 But don't do this if the user's code has set `no_more' nonzero. */
661 for (i = 0; i < XVECLEN (split, 2); i++)
663 rtx next = XVECEXP (split, 2, i);
664 if ((GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC)
665 || (GET_CODE (next) == PARALLEL
666 && GET_CODE (XVECEXP (next, 0, 0)) == SET
667 && GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC)
668 || GET_CODE (next) == RETURN)
669 printf (" emit_jump_insn (");
670 else if ((GET_CODE (next) == SET && GET_CODE (SET_SRC (next)) == CALL)
671 || GET_CODE (next) == CALL
672 || (GET_CODE (next) == PARALLEL
673 && GET_CODE (XVECEXP (next, 0, 0)) == SET
674 && GET_CODE (SET_SRC (XVECEXP (next, 0, 0))) == CALL)
675 || (GET_CODE (next) == PARALLEL
676 && GET_CODE (XVECEXP (next, 0, 0)) == CALL))
677 printf (" emit_call_insn (");
678 else if (LABEL_P (next))
679 printf (" emit_label (");
680 else if (GET_CODE (next) == MATCH_OPERAND
681 || GET_CODE (next) == MATCH_OPERATOR
682 || GET_CODE (next) == MATCH_PARALLEL
683 || GET_CODE (next) == MATCH_OP_DUP
684 || GET_CODE (next) == MATCH_DUP
685 || GET_CODE (next) == PARALLEL)
688 printf (" emit_insn (");
689 gen_exp (next, GET_CODE (split), used);
691 if (GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC
692 && GET_CODE (SET_SRC (next)) == LABEL_REF)
693 printf (" emit_barrier ();");
696 /* Call `get_insns' to make a list of all the
697 insns emitted within this gen_... function. */
699 printf (" _val = get_insns ();\n");
700 printf (" end_sequence ();\n");
701 printf (" return _val;\n}\n\n");
706 /* Write a function, `add_clobbers', that is given a PARALLEL of sufficient
707 size for the insn and an INSN_CODE, and inserts the required CLOBBERs at
708 the end of the vector. */
711 output_add_clobbers (void)
713 struct clobber_pat *clobber;
714 struct clobber_ent *ent;
717 printf ("\n\nvoid\nadd_clobbers (rtx pattern ATTRIBUTE_UNUSED, int insn_code_number)\n");
719 printf (" switch (insn_code_number)\n");
722 for (clobber = clobber_list; clobber; clobber = clobber->next)
724 for (ent = clobber->insns; ent; ent = ent->next)
725 printf (" case %d:\n", ent->code_number);
727 for (i = clobber->first_clobber; i < XVECLEN (clobber->pattern, 1); i++)
729 printf (" XVECEXP (pattern, 0, %d) = ", i);
730 gen_exp (XVECEXP (clobber->pattern, 1, i),
731 GET_CODE (clobber->pattern), NULL);
735 printf (" break;\n\n");
738 printf (" default:\n");
739 printf (" gcc_unreachable ();\n");
744 /* Write a function, `added_clobbers_hard_reg_p' that is given an insn_code
745 number that will have clobbers added (as indicated by `recog') and returns
746 1 if those include a clobber of a hard reg or 0 if all of them just clobber
750 output_added_clobbers_hard_reg_p (void)
752 struct clobber_pat *clobber;
753 struct clobber_ent *ent;
756 printf ("\n\nint\nadded_clobbers_hard_reg_p (int insn_code_number)\n");
758 printf (" switch (insn_code_number)\n");
761 for (clobber_p = 0; clobber_p <= 1; clobber_p++)
764 for (clobber = clobber_list; clobber; clobber = clobber->next)
765 if (clobber->has_hard_reg == clobber_p)
766 for (ent = clobber->insns; ent; ent = ent->next)
768 printf (" case %d:\n", ent->code_number);
773 printf (" return %d;\n\n", clobber_p);
776 printf (" default:\n");
777 printf (" gcc_unreachable ();\n");
782 /* Generate code to invoke find_free_register () as needed for the
783 scratch registers used by the peephole2 pattern in SPLIT. */
786 output_peephole2_scratches (rtx split)
792 for (i = 0; i < XVECLEN (split, 0); i++)
794 rtx elt = XVECEXP (split, 0, i);
795 if (GET_CODE (elt) == MATCH_SCRATCH)
797 int last_insn_nr = insn_nr;
798 int cur_insn_nr = insn_nr;
800 for (j = i + 1; j < XVECLEN (split, 0); j++)
801 if (GET_CODE (XVECEXP (split, 0, j)) == MATCH_DUP)
803 if (XINT (XVECEXP (split, 0, j), 0) == XINT (elt, 0))
804 last_insn_nr = cur_insn_nr;
806 else if (GET_CODE (XVECEXP (split, 0, j)) != MATCH_SCRATCH)
811 printf (" HARD_REG_SET _regs_allocated;\n");
812 printf (" CLEAR_HARD_REG_SET (_regs_allocated);\n");
816 printf (" if ((operands[%d] = peep2_find_free_register (%d, %d, \"%s\", %smode, &_regs_allocated)) == NULL_RTX)\n\
819 insn_nr, last_insn_nr,
821 GET_MODE_NAME (GET_MODE (elt)));
824 else if (GET_CODE (elt) != MATCH_DUP)
830 main (int argc, char **argv)
834 progname = "genemit";
836 if (!init_rtx_reader_args (argc, argv))
837 return (FATAL_EXIT_CODE);
839 /* Assign sequential codes to all entries in the machine description
840 in parallel with the tables in insn-output.c. */
842 insn_code_number = 0;
843 insn_index_number = 0;
845 printf ("/* Generated automatically by the program `genemit'\n\
846 from the machine description file `md'. */\n\n");
848 printf ("#include \"config.h\"\n");
849 printf ("#include \"system.h\"\n");
850 printf ("#include \"coretypes.h\"\n");
851 printf ("#include \"tm.h\"\n");
852 printf ("#include \"rtl.h\"\n");
853 printf ("#include \"tm_p.h\"\n");
854 printf ("#include \"function.h\"\n");
855 printf ("#include \"expr.h\"\n");
856 printf ("#include \"optabs.h\"\n");
857 printf ("#include \"dfp.h\"\n");
858 printf ("#include \"flags.h\"\n");
859 printf ("#include \"output.h\"\n");
860 printf ("#include \"insn-config.h\"\n");
861 printf ("#include \"hard-reg-set.h\"\n");
862 printf ("#include \"recog.h\"\n");
863 printf ("#include \"resource.h\"\n");
864 printf ("#include \"reload.h\"\n");
865 printf ("#include \"diagnostic-core.h\"\n");
866 printf ("#include \"regs.h\"\n");
867 printf ("#include \"tm-constrs.h\"\n");
868 printf ("#include \"ggc.h\"\n");
869 printf ("#include \"basic-block.h\"\n");
870 printf ("#include \"integrate.h\"\n\n");
871 printf ("#define FAIL return (end_sequence (), _val)\n");
872 printf ("#define DONE return (_val = get_insns (), end_sequence (), _val)\n\n");
874 /* Read the machine description. */
880 desc = read_md_rtx (&line_no, &insn_code_number);
884 switch (GET_CODE (desc))
887 gen_insn (desc, line_no);
891 printf ("/* %s:%d */\n", read_md_filename, line_no);
896 printf ("/* %s:%d */\n", read_md_filename, line_no);
900 case DEFINE_PEEPHOLE2:
901 printf ("/* %s:%d */\n", read_md_filename, line_no);
911 /* Write out the routines to add CLOBBERs to a pattern and say whether they
912 clobber a hard reg. */
913 output_add_clobbers ();
914 output_added_clobbers_hard_reg_p ();
917 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);