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      1 /* Language-dependent trees for LTO.
      2    Copyright (C) 2009-2022 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