00001 /* Exported functions from alias.c 00002 Copyright (C) 2004 Free Software Foundation, Inc. 00003 00004 This file is part of GCC. 00005 00006 GCC is free software; you can redistribute it and/or modify it under 00007 the terms of the GNU General Public License as published by the Free 00008 Software Foundation; either version 2, or (at your option) any later 00009 version. 00010 00011 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 00012 WARRANTY; without even the implied warranty of MERCHANTABILITY or 00013 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00014 for more details. 00015 00016 You should have received a copy of the GNU General Public License 00017 along with GCC; see the file COPYING. If not, write to the Free 00018 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 00019 02110-1301, USA. */ 00020 00021 #ifndef GCC_ALIAS_H 00022 #define GCC_ALIAS_H 00023 00024 extern HOST_WIDE_INT new_alias_set (void); 00025 extern HOST_WIDE_INT get_varargs_alias_set (void); 00026 extern HOST_WIDE_INT get_frame_alias_set (void); 00027 extern bool component_uses_parent_alias_set (tree); 00028 00029 /* This alias set can be used to force a memory to conflict with all 00030 other memories, creating a barrier across which no memory reference 00031 can move. Note that there are other legacy ways to create such 00032 memory barriers, including an address of SCRATCH. */ 00033 #define ALIAS_SET_MEMORY_BARRIER ((HOST_WIDE_INT) -1) 00034 00035 #endif /* GCC_ALIAS_H */
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