1/* GCC core type declarations.
2   Copyright (C) 2002, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14for more details.
15
16Under Section 7 of GPL version 3, you are granted additional
17permissions described in the GCC Runtime Library Exception, version
183.1, as published by the Free Software Foundation.
19
20You should have received a copy of the GNU General Public License and
21a copy of the GCC Runtime Library Exception along with this program;
22see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23<http://www.gnu.org/licenses/>.  */
24
25/* Provide forward declarations of core types which are referred to by
26   most of the compiler.  This allows header files to use these types
27   (e.g. in function prototypes) without concern for whether the full
28   definitions are visible.  Some other declarations that need to be
29   universally visible are here, too.
30
31   In the context of tconfig.h, most of these have special definitions
32   which prevent them from being used except in further type
33   declarations.  This is a kludge; the right thing is to avoid
34   including the "tm.h" header set in the context of tconfig.h, but
35   we're not there yet.  */
36
37#ifndef GCC_CORETYPES_H
38#define GCC_CORETYPES_H
39
40#ifndef GTY
41#define GTY(x)  /* nothing - marker for gengtype */
42#endif
43
44#ifndef USED_FOR_TARGET
45
46struct bitmap_head_def;
47typedef struct bitmap_head_def *bitmap;
48typedef const struct bitmap_head_def *const_bitmap;
49struct rtx_def;
50typedef struct rtx_def *rtx;
51typedef const struct rtx_def *const_rtx;
52struct rtvec_def;
53typedef struct rtvec_def *rtvec;
54typedef const struct rtvec_def *const_rtvec;
55union tree_node;
56typedef union tree_node *tree;
57union gimple_statement_d;
58typedef union gimple_statement_d *gimple;
59typedef const union tree_node *const_tree;
60typedef const union gimple_statement_d *const_gimple;
61union section;
62typedef union section section;
63struct cl_target_option;
64struct cl_optimization;
65struct gimple_seq_d;
66typedef struct gimple_seq_d *gimple_seq;
67typedef const struct gimple_seq_d *const_gimple_seq;
68struct gimple_seq_node_d;
69typedef struct gimple_seq_node_d *gimple_seq_node;
70typedef const struct gimple_seq_node_d *const_gimple_seq_node;
71
72/* Address space number for named address space support.  */
73typedef unsigned char addr_space_t;
74
75/* The value of addr_space_t that represents the generic address space.  */
76#define ADDR_SPACE_GENERIC 0
77#define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC)
78
79/* The major intermediate representations of GCC.  */
80enum ir_type {
81  IR_GIMPLE,
82  IR_RTL_CFGRTL,
83  IR_RTL_CFGLAYOUT
84};
85
86/* Provide forward struct declaration so that we don't have to include
87   all of cpplib.h whenever a random prototype includes a pointer.
88   Note that the cpp_reader and cpp_token typedefs remain part of
89   cpplib.h.  */
90
91struct cpp_reader;
92struct cpp_token;
93
94/* The thread-local storage model associated with a given VAR_DECL
95   or SYMBOL_REF.  This isn't used much, but both trees and RTL refer
96   to it, so it's here.  */
97enum tls_model {
98  TLS_MODEL_NONE,
99  TLS_MODEL_EMULATED,
100  TLS_MODEL_REAL,
101  TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL,
102  TLS_MODEL_LOCAL_DYNAMIC,
103  TLS_MODEL_INITIAL_EXEC,
104  TLS_MODEL_LOCAL_EXEC
105};
106
107struct edge_def;
108typedef struct edge_def *edge;
109typedef const struct edge_def *const_edge;
110struct basic_block_def;
111typedef struct basic_block_def *basic_block;
112typedef const struct basic_block_def *const_basic_block;
113#else
114
115struct _dont_use_rtx_here_;
116struct _dont_use_rtvec_here_;
117union _dont_use_tree_here_;
118#define rtx struct _dont_use_rtx_here_ *
119#define const_rtx struct _dont_use_rtx_here_ *
120#define rtvec struct _dont_use_rtvec_here *
121#define const_rtvec struct _dont_use_rtvec_here *
122#define tree union _dont_use_tree_here_ *
123#define const_tree union _dont_use_tree_here_ *
124
125#endif
126
127#endif /* coretypes.h */
128
129