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