114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/* Declarations for rtx-reader support for gen* routines.
|
|
Copyright (C) 2000-2014 Free Software Foundation, Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
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 3, or (at your option) any later
|
|
version.
|
|
|
|
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 GCC; see the file COPYING3. If not see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef GCC_GENSUPPORT_H
|
|
#define GCC_GENSUPPORT_H
|
|
|
|
struct obstack;
|
|
extern struct obstack *rtl_obstack;
|
|
|
|
extern bool init_rtx_reader_args_cb (int, char **, bool (*)(const char *));
|
|
extern bool init_rtx_reader_args (int, char **);
|
|
extern rtx read_md_rtx (int *, int *);
|
|
|
|
/* 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 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 *);
|
|
|
|
/* Add an entry to the table of conditions. Used by genconditions and
|
|
by read-rtl.c. */
|
|
extern void add_c_test (const char *, int);
|
|
|
|
/* This structure is used internally by gensupport.c and genconditions.c. */
|
|
struct c_test
|
|
{
|
|
const char *expr;
|
|
int value;
|
|
};
|
|
|
|
#ifdef __HASHTAB_H__
|
|
extern hashval_t hash_c_test (const void *);
|
|
extern int cmp_c_test (const void *, const void *);
|
|
extern void traverse_c_tests (htab_trav, void *);
|
|
#endif
|
|
|
|
/* Predicate handling: helper functions and data structures. */
|
|
|
|
struct pred_data
|
|
{
|
|
struct pred_data *next; /* for iterating over the set of all preds */
|
|
const char *name; /* predicate name */
|
|
bool special; /* special handling of modes? */
|
|
|
|
/* data used primarily by genpreds.c */
|
|
const char *c_block; /* C test block */
|
|
rtx exp; /* RTL test expression */
|
|
|
|
/* data used primarily by genrecog.c */
|
|
enum rtx_code singleton; /* if pred takes only one code, that code */
|
|
int num_codes; /* number of codes accepted */
|
|
bool allows_non_lvalue; /* if pred allows non-lvalue expressions */
|
|
bool allows_non_const; /* if pred allows non-const expressions */
|
|
bool codes[NUM_RTX_CODE]; /* set of codes accepted */
|
|
};
|
|
|
|
extern struct pred_data *first_predicate;
|
|
extern struct pred_data *lookup_predicate (const char *);
|
|
extern void add_predicate_code (struct pred_data *, enum rtx_code);
|
|
extern void add_predicate (struct pred_data *);
|
|
|
|
#define FOR_ALL_PREDICATES(p) for (p = first_predicate; p; p = p->next)
|
|
|
|
struct pattern_stats
|
|
{
|
|
/* The largest match_operand, match_operator or match_parallel
|
|
number found. */
|
|
int max_opno;
|
|
|
|
/* The largest match_dup, match_op_dup or match_par_dup number found. */
|
|
int max_dup_opno;
|
|
|
|
/* The largest match_scratch number found. */
|
|
int max_scratch_opno;
|
|
|
|
/* The number of times match_dup, match_op_dup or match_par_dup appears
|
|
in the pattern. */
|
|
int num_dups;
|
|
|
|
/* The number of rtx arguments to the generator function. */
|
|
int num_generator_args;
|
|
|
|
/* The number of rtx operands in an insn. */
|
|
int num_insn_operands;
|
|
|
|
/* The number of operand variables that are needed. */
|
|
int num_operand_vars;
|
|
};
|
|
|
|
extern void get_pattern_stats (struct pattern_stats *ranges, rtvec vec);
|
|
|
|
#endif /* GCC_GENSUPPORT_H */
|