1 /* Language-dependent trees for LTO. 2 Copyright (C) 2009-2021 Free Software Foundation, Inc. 3 Contributed by CodeSourcery, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GCC_LTO_TREE_H 22 #define GCC_LTO_TREE_H 23 24 struct GTY(()) lang_identifier 25 { 26 struct tree_identifier base; 27 }; 28 29 struct GTY(()) lang_decl 30 { 31 int dummy; /* Added because ggc does not like empty structs. */ 32 }; 33 34 struct GTY(()) lang_type 35 { 36 int dummy; /* Added because ggc does not like empty structs. */ 37 }; 38 39 struct GTY(()) language_function 40 { 41 int dummy; /* Added because ggc does not like empty structs. */ 42 }; 43 44 enum lto_tree_node_structure_enum { 45 TS_LTO_GENERIC 46 }; 47 48 union GTY((desc ("lto_tree_node_structure (&%h)"), 49 chain_next ("CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_TYPE_COMMON) ? ((union lang_tree_node *) %h.generic.type_common.next_variant) : CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_COMMON) ? ((union lang_tree_node *) %h.generic.common.chain) : NULL"))) 50 lang_tree_node 51 { 52 union tree_node GTY ((tag ("TS_LTO_GENERIC"), 53 desc ("tree_node_structure (&%h)"))) generic; 54 }; 55 56 #endif /* GCC_LTO_TREE_H */ 57