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1 /* GCC core type declarations.
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2 Copyright (C) 2002, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 Under Section 7 of GPL version 3, you are granted additional
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17 permissions described in the GCC Runtime Library Exception, version
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18 3.1, as published by the Free Software Foundation.
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19
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20 You should have received a copy of the GNU General Public License and
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21 a copy of the GCC Runtime Library Exception along with this program;
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22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 <http://www.gnu.org/licenses/>. */
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24
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25 /* Provide forward declarations of core types which are referred to by
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26 most of the compiler. This allows header files to use these types
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27 (e.g. in function prototypes) without concern for whether the full
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28 definitions are visible. Some other declarations that need to be
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29 universally visible are here, too.
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30
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31 In the context of tconfig.h, most of these have special definitions
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32 which prevent them from being used except in further type
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33 declarations. This is a kludge; the right thing is to avoid
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34 including the "tm.h" header set in the context of tconfig.h, but
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35 we're not there yet. */
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36
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37 #ifndef GCC_CORETYPES_H
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38 #define GCC_CORETYPES_H
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39
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40 #define GTY(x) /* nothing - marker for gengtype */
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41
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42 #ifndef USED_FOR_TARGET
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43
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44 struct bitmap_head_def;
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45 typedef struct bitmap_head_def *bitmap;
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46 typedef const struct bitmap_head_def *const_bitmap;
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47 struct rtx_def;
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48 typedef struct rtx_def *rtx;
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49 typedef const struct rtx_def *const_rtx;
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50 struct rtvec_def;
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51 typedef struct rtvec_def *rtvec;
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52 typedef const struct rtvec_def *const_rtvec;
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53 union tree_node;
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54 typedef union tree_node *tree;
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55 union gimple_statement_d;
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56 typedef union gimple_statement_d *gimple;
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57 typedef const union tree_node *const_tree;
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58 typedef const union gimple_statement_d *const_gimple;
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59 union section;
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60 typedef union section section;
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61 struct cl_target_option;
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62 struct cl_optimization;
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63 struct gimple_seq_d;
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64 typedef struct gimple_seq_d *gimple_seq;
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65 typedef const struct gimple_seq_d *const_gimple_seq;
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66 struct gimple_seq_node_d;
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67 typedef struct gimple_seq_node_d *gimple_seq_node;
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68 typedef const struct gimple_seq_node_d *const_gimple_seq_node;
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69
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70 /* The major intermediate representations of GCC. */
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71 enum ir_type {
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72 IR_GIMPLE,
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73 IR_RTL_CFGRTL,
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74 IR_RTL_CFGLAYOUT
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75 };
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76
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77 /* Provide forward struct declaration so that we don't have to include
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78 all of cpplib.h whenever a random prototype includes a pointer.
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79 Note that the cpp_reader and cpp_token typedefs remain part of
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80 cpplib.h. */
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81
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82 struct cpp_reader;
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83 struct cpp_token;
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84
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85 /* The thread-local storage model associated with a given VAR_DECL
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86 or SYMBOL_REF. This isn't used much, but both trees and RTL refer
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87 to it, so it's here. */
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88 enum tls_model {
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89 TLS_MODEL_NONE,
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90 TLS_MODEL_EMULATED,
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91 TLS_MODEL_REAL,
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92 TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL,
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93 TLS_MODEL_LOCAL_DYNAMIC,
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94 TLS_MODEL_INITIAL_EXEC,
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95 TLS_MODEL_LOCAL_EXEC
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96 };
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97
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98 #else
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99
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100 struct _dont_use_rtx_here_;
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101 struct _dont_use_rtvec_here_;
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102 union _dont_use_tree_here_;
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103 #define rtx struct _dont_use_rtx_here_ *
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104 #define const_rtx struct _dont_use_rtx_here_ *
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105 #define rtvec struct _dont_use_rtvec_here *
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106 #define const_rtvec struct _dont_use_rtvec_here *
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107 #define tree union _dont_use_tree_here_ *
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108 #define const_tree union _dont_use_tree_here_ *
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109
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110 #endif
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111
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112 #endif /* coretypes.h */
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113
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