gcc/coretypes.h

   1 /* GCC core type declarations.
   2    Copyright (C) 2002, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 Under Section 7 of GPL version 3, you are granted additional
  17 permissions described in the GCC Runtime Library Exception, version
  18 3.1, as published by the Free Software Foundation.
  19
  20 You should have received a copy of the GNU General Public License and
  21 a copy of the GCC Runtime Library Exception along with this program;
  22 see 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
  46 struct bitmap_head_def;
  47 typedef struct bitmap_head_def *bitmap;
  48 typedef const struct bitmap_head_def *const_bitmap;
  49 struct rtx_def;
  50 typedef struct rtx_def *rtx;
  51 typedef const struct rtx_def *const_rtx;
  52 struct rtvec_def;
  53 typedef struct rtvec_def *rtvec;
  54 typedef const struct rtvec_def *const_rtvec;
  55 union tree_node;
  56 typedef union tree_node *tree;
  57 union gimple_statement_d;
  58 typedef union gimple_statement_d *gimple;
  59 typedef const union tree_node *const_tree;
  60 typedef const union gimple_statement_d *const_gimple;
  61 union section;
  62 typedef union section section;
  63 struct cl_target_option;
  64 struct cl_optimization;
  65 struct gimple_seq_d;
  66 typedef struct gimple_seq_d *gimple_seq;
  67 typedef const struct gimple_seq_d *const_gimple_seq;
  68 struct gimple_seq_node_d;
  69 typedef struct gimple_seq_node_d *gimple_seq_node;
  70 typedef const struct gimple_seq_node_d *const_gimple_seq_node;
  71
  72 /* Address space number for named address space support.  */
  73 typedef 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.  */
  80 enum 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
  91 struct cpp_reader;
  92 struct 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.  */
  97 enum 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
 107 struct edge_def;
 108 typedef struct edge_def *edge;
 109 typedef const struct edge_def *const_edge;
 110 struct basic_block_def;
 111 typedef struct basic_block_def *basic_block;
 112 typedef const struct basic_block_def *const_basic_block;
 113 #else
 114
 115 struct _dont_use_rtx_here_;
 116 struct _dont_use_rtvec_here_;
 117 union _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