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[official-gcc.git] / gcc / libfuncs.h
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1 /* Definitions for code generation pass of GNU compiler.
2 Copyright (C) 2001, 2004, 2007, 2008, 2010 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_LIBFUNCS_H
21 #define GCC_LIBFUNCS_H
23 #include "hashtab.h"
25 /* Enumeration of indexes into libfunc_table. */
26 enum libfunc_index
28 LTI_abort,
29 LTI_memcpy,
30 LTI_memmove,
31 LTI_memcmp,
32 LTI_memset,
33 LTI_setbits,
35 LTI_setjmp,
36 LTI_longjmp,
37 LTI_unwind_sjlj_register,
38 LTI_unwind_sjlj_unregister,
40 LTI_profile_function_entry,
41 LTI_profile_function_exit,
43 LTI_synchronize,
45 LTI_gcov_flush,
47 LTI_MAX
50 /* Information about an optab-related libfunc. We use the same hashtable
51 for normal optabs and conversion optabs. In the first case mode2
52 is unused. */
53 struct GTY(()) libfunc_entry {
54 size_t optab;
55 enum machine_mode mode1, mode2;
56 rtx libfunc;
59 /* Target-dependent globals. */
60 struct GTY(()) target_libfuncs {
61 /* SYMBOL_REF rtx's for the library functions that are called
62 implicitly and not via optabs. */
63 rtx x_libfunc_table[LTI_MAX];
65 /* Hash table used to convert declarations into nodes. */
66 htab_t GTY((param_is (struct libfunc_entry))) x_libfunc_hash;
69 extern GTY(()) struct target_libfuncs default_target_libfuncs;
70 #if SWITCHABLE_TARGET
71 extern struct target_libfuncs *this_target_libfuncs;
72 #else
73 #define this_target_libfuncs (&default_target_libfuncs)
74 #endif
76 #define libfunc_table \
77 (this_target_libfuncs->x_libfunc_table)
79 /* Accessor macros for libfunc_table. */
81 #define abort_libfunc (libfunc_table[LTI_abort])
82 #define memcpy_libfunc (libfunc_table[LTI_memcpy])
83 #define memmove_libfunc (libfunc_table[LTI_memmove])
84 #define memcmp_libfunc (libfunc_table[LTI_memcmp])
85 #define memset_libfunc (libfunc_table[LTI_memset])
86 #define setbits_libfunc (libfunc_table[LTI_setbits])
88 #define setjmp_libfunc (libfunc_table[LTI_setjmp])
89 #define longjmp_libfunc (libfunc_table[LTI_longjmp])
90 #define unwind_sjlj_register_libfunc (libfunc_table[LTI_unwind_sjlj_register])
91 #define unwind_sjlj_unregister_libfunc \
92 (libfunc_table[LTI_unwind_sjlj_unregister])
94 #define profile_function_entry_libfunc (libfunc_table[LTI_profile_function_entry])
95 #define profile_function_exit_libfunc (libfunc_table[LTI_profile_function_exit])
97 #define synchronize_libfunc (libfunc_table[LTI_synchronize])
99 #define gcov_flush_libfunc (libfunc_table[LTI_gcov_flush])
101 /* In explow.c */
102 extern void set_stack_check_libfunc (const char *);
104 #endif /* GCC_LIBFUNCS_H */