70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/* Declarations for rtx-reader support for gen* routines.
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Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef GCC_GENSUPPORT_H
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#define GCC_GENSUPPORT_H
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struct obstack;
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extern struct obstack *rtl_obstack;
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extern int init_md_reader_args (int, char **);
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extern int init_md_reader (const char *);
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extern rtx read_md_rtx (int *, int *);
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extern void message_with_line (int, const char *, ...)
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ATTRIBUTE_PRINTF_2;
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/* Set this to 0 to disable automatic elision of insn patterns which
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can never be used in this configuration. See genconditions.c.
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Must be set before calling init_md_reader. */
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extern int insn_elision;
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/* If this is 1, the insn elision table doesn't even exist yet;
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maybe_eval_c_test will always return -1. This is distinct from
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insn_elision because genflags and gencodes need to see all the
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patterns, but treat elided patterns differently. */
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extern const int insn_elision_unavailable;
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/* If the C test passed as the argument can be evaluated at compile
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time, return its truth value; else return -1. The test must have
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appeared somewhere in the machine description when genconditions
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was run. */
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extern int maybe_eval_c_test (const char *);
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/* This table should not be accessed directly; use maybe_eval_c_test. */
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struct c_test
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{
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const char *expr;
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int value;
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};
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extern const struct c_test insn_conditions[];
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extern const size_t n_insn_conditions;
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#ifdef __HASHTAB_H__
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extern hashval_t hash_c_test (const void *);
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extern int cmp_c_test (const void *, const void *);
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#endif
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extern int n_comma_elts (const char *);
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extern const char *scan_comma_elt (const char **);
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#endif /* GCC_GENSUPPORT_H */
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