From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/gensupport.h | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 gcc/gensupport.h (limited to 'gcc/gensupport.h') diff --git a/gcc/gensupport.h b/gcc/gensupport.h new file mode 100644 index 000000000..999c2222e --- /dev/null +++ b/gcc/gensupport.h @@ -0,0 +1,86 @@ +/* Declarations for rtx-reader support for gen* routines. + Copyright (C) 2000, 2002, 2003, 2004, 2007, 2008, 2010 + 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 +. */ + +#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) + +#endif /* GCC_GENSUPPORT_H */ -- cgit v1.2.3