85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/* Definitions for code generation pass of GNU compiler.
|
|
Copyright (C) 2001-2020 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_LIBFUNCS_H
|
|
#define GCC_LIBFUNCS_H
|
|
|
|
|
|
/* Enumeration of indexes into libfunc_table. */
|
|
enum libfunc_index
|
|
{
|
|
LTI_unwind_sjlj_register,
|
|
LTI_unwind_sjlj_unregister,
|
|
LTI_synchronize,
|
|
LTI_MAX
|
|
};
|
|
|
|
/* Information about an optab-related libfunc. The op field is logically
|
|
an enum optab_d, and the mode fields are logically machine_mode.
|
|
However, in the absence of forward-declared enums, there's no practical
|
|
benefit of pulling in the defining headers.
|
|
|
|
We use the same hashtable for normal optabs and conversion optabs. In
|
|
the first case mode2 is forced to VOIDmode. */
|
|
|
|
struct GTY((for_user)) libfunc_entry {
|
|
int op, mode1, mode2;
|
|
rtx libfunc;
|
|
};
|
|
|
|
/* Descriptor for libfunc_entry. */
|
|
|
|
struct libfunc_hasher : ggc_ptr_hash<libfunc_entry>
|
|
{
|
|
static hashval_t hash (libfunc_entry *);
|
|
static bool equal (libfunc_entry *, libfunc_entry *);
|
|
};
|
|
|
|
/* Target-dependent globals. */
|
|
struct GTY(()) target_libfuncs {
|
|
/* SYMBOL_REF rtx's for the library functions that are called
|
|
implicitly and not via optabs. */
|
|
rtx x_libfunc_table[LTI_MAX];
|
|
|
|
/* Hash table used to convert declarations into nodes. */
|
|
hash_table<libfunc_hasher> *GTY(()) x_libfunc_hash;
|
|
};
|
|
|
|
extern GTY(()) struct target_libfuncs default_target_libfuncs;
|
|
#if SWITCHABLE_TARGET
|
|
extern struct target_libfuncs *this_target_libfuncs;
|
|
#else
|
|
#define this_target_libfuncs (&default_target_libfuncs)
|
|
#endif
|
|
|
|
#define libfunc_table \
|
|
(this_target_libfuncs->x_libfunc_table)
|
|
|
|
/* Accessor macros for libfunc_table. */
|
|
|
|
#define unwind_sjlj_register_libfunc (libfunc_table[LTI_unwind_sjlj_register])
|
|
#define unwind_sjlj_unregister_libfunc \
|
|
(libfunc_table[LTI_unwind_sjlj_unregister])
|
|
#define synchronize_libfunc (libfunc_table[LTI_synchronize])
|
|
|
|
/* In explow.c */
|
|
extern void set_stack_check_libfunc (const char *);
|
|
|
|
#endif /* GCC_LIBFUNCS_H */
|