3e9c326a88
gcc/ * Makefile.in (LIBFUNCS_H): Add $(HASHTAB_H). (target-globals.o): Depend on $(LIBFUNCS_H). * libfuncs.h: Include hashtab.h. (libfunc_entry): Moved from optabs.c. (target_libfuncs): New structure. (default_target_libfuncs): Declare. (this_target_libfuncs): Declare as a variable or define as a macro. (libfunc_table): Redefine as a macro. * optabs.c (default_target_libfuncs): New variable. (this_target_libfuncs): New conditional variable. (libfunc_table): Delete. (libfunc_entry): Moved to optabs.h. (libfunc_hash): Redefine as a macro. (hash_libfunc, eq_libfunc): Fix comments. (init_optabs): Use libfunc_hash to detect cases where the function has already been called. Clear the hash table instead of recreating it. * target-globals.h (this_target_libfuncs): Declare. (target_globals): Add a libfuncs field. (restore_target_globals): Copy the libfuncs field to this_target_libfuncs. * target-globals.c: Include libfuncs.h. (default_target_globals): Initialize the libfuncs field. (save_target_globals): Likewise. From-SVN: r162099
105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/* Definitions for code generation pass of GNU compiler.
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Copyright (C) 2001, 2004, 2007, 2008 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_LIBFUNCS_H
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#define GCC_LIBFUNCS_H
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#include "hashtab.h"
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/* Enumeration of indexes into libfunc_table. */
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enum libfunc_index
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{
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LTI_abort,
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LTI_memcpy,
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LTI_memmove,
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LTI_memcmp,
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LTI_memset,
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LTI_setbits,
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LTI_setjmp,
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LTI_longjmp,
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LTI_unwind_sjlj_register,
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LTI_unwind_sjlj_unregister,
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LTI_profile_function_entry,
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LTI_profile_function_exit,
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LTI_synchronize,
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LTI_gcov_flush,
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LTI_MAX
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};
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/* Information about an optab-related libfunc. We use the same hashtable
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for normal optabs and conversion optabs. In the first case mode2
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is unused. */
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struct GTY(()) libfunc_entry {
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size_t optab;
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enum machine_mode mode1, mode2;
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rtx libfunc;
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};
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/* Target-dependent globals. */
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struct GTY(()) target_libfuncs {
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/* SYMBOL_REF rtx's for the library functions that are called
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implicitly and not via optabs. */
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rtx x_libfunc_table[LTI_MAX];
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/* Hash table used to convert declarations into nodes. */
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htab_t GTY((param_is (struct libfunc_entry))) x_libfunc_hash;
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};
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extern GTY(()) struct target_libfuncs default_target_libfuncs;
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#if SWITCHABLE_TARGET
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extern struct target_libfuncs *this_target_libfuncs;
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#else
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#define this_target_libfuncs (&default_target_libfuncs)
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#endif
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#define libfunc_table \
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(this_target_libfuncs->x_libfunc_table)
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/* Accessor macros for libfunc_table. */
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#define abort_libfunc (libfunc_table[LTI_abort])
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#define memcpy_libfunc (libfunc_table[LTI_memcpy])
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#define memmove_libfunc (libfunc_table[LTI_memmove])
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#define memcmp_libfunc (libfunc_table[LTI_memcmp])
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#define memset_libfunc (libfunc_table[LTI_memset])
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#define setbits_libfunc (libfunc_table[LTI_setbits])
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#define setjmp_libfunc (libfunc_table[LTI_setjmp])
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#define longjmp_libfunc (libfunc_table[LTI_longjmp])
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#define unwind_sjlj_register_libfunc (libfunc_table[LTI_unwind_sjlj_register])
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#define unwind_sjlj_unregister_libfunc \
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(libfunc_table[LTI_unwind_sjlj_unregister])
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#define profile_function_entry_libfunc (libfunc_table[LTI_profile_function_entry])
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#define profile_function_exit_libfunc (libfunc_table[LTI_profile_function_exit])
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#define synchronize_libfunc (libfunc_table[LTI_synchronize])
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#define gcov_flush_libfunc (libfunc_table[LTI_gcov_flush])
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/* In explow.c */
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extern void set_stack_check_libfunc (const char *);
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#endif /* GCC_LIBFUNCS_H */
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