OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [cp/] [cp-objcp-common.c] - Blame information for rev 318

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 283 jeremybenn
/* Some code common to C++ and ObjC++ front ends.
2
   Copyright (C) 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
3
   Contributed by Ziemowit Laski  <zlaski@apple.com>
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
#include "config.h"
22
#include "system.h"
23
#include "coretypes.h"
24
#include "tm.h"
25
#include "tree.h"
26
#include "cp-tree.h"
27
#include "c-common.h"
28
#include "toplev.h"
29
#include "langhooks.h"
30
#include "langhooks-def.h"
31
#include "diagnostic.h"
32
#include "debug.h"
33
#include "cxx-pretty-print.h"
34
#include "cp-objcp-common.h"
35
 
36
/* Special routine to get the alias set for C++.  */
37
 
38
alias_set_type
39
cxx_get_alias_set (tree t)
40
{
41
  if (IS_FAKE_BASE_TYPE (t))
42
    /* The base variant of a type must be in the same alias set as the
43
       complete type.  */
44
    return get_alias_set (TYPE_CONTEXT (t));
45
 
46
  /* Punt on PMFs until we canonicalize functions properly.  */
47
  if (TYPE_PTRMEMFUNC_P (t)
48
      || (POINTER_TYPE_P (t)
49
          && TYPE_PTRMEMFUNC_P (TREE_TYPE (t))))
50
    return 0;
51
 
52
  return c_common_get_alias_set (t);
53
}
54
 
55
/* Called from check_global_declarations.  */
56
 
57
bool
58
cxx_warn_unused_global_decl (const_tree decl)
59
{
60
  if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
61
    return false;
62
  if (DECL_IN_SYSTEM_HEADER (decl))
63
    return false;
64
 
65
  /* Const variables take the place of #defines in C++.  */
66
  if (TREE_CODE (decl) == VAR_DECL && TREE_READONLY (decl))
67
    return false;
68
 
69
  return true;
70
}
71
 
72
/* Langhook for tree_size: determine size of our 'x' and 'c' nodes.  */
73
size_t
74
cp_tree_size (enum tree_code code)
75
{
76
  switch (code)
77
    {
78
    case PTRMEM_CST:            return sizeof (struct ptrmem_cst);
79
    case BASELINK:              return sizeof (struct tree_baselink);
80
    case TEMPLATE_PARM_INDEX:   return sizeof (template_parm_index);
81
    case DEFAULT_ARG:           return sizeof (struct tree_default_arg);
82
    case OVERLOAD:              return sizeof (struct tree_overload);
83
    case STATIC_ASSERT:         return sizeof (struct tree_static_assert);
84
    case TYPE_ARGUMENT_PACK:
85
    case TYPE_PACK_EXPANSION:
86
      return sizeof (struct tree_common);
87
 
88
    case NONTYPE_ARGUMENT_PACK:
89
    case EXPR_PACK_EXPANSION:
90
      return sizeof (struct tree_exp);
91
 
92
    case ARGUMENT_PACK_SELECT:
93
      return sizeof (struct tree_argument_pack_select);
94
 
95
    case TRAIT_EXPR:
96
      return sizeof (struct tree_trait_expr);
97
 
98
    case LAMBDA_EXPR:           return sizeof (struct tree_lambda_expr);
99
 
100
    case TEMPLATE_INFO:         return sizeof (struct tree_template_info);
101
 
102
    default:
103
      gcc_unreachable ();
104
    }
105
  /* NOTREACHED */
106
}
107
 
108
/* Returns true if T is a variably modified type, in the sense of C99.
109
   FN is as passed to variably_modified_p.
110
   This routine needs only check cases that cannot be handled by the
111
   language-independent logic in tree.c.  */
112
 
113
bool
114
cp_var_mod_type_p (tree type, tree fn)
115
{
116
  /* If TYPE is a pointer-to-member, it is variably modified if either
117
     the class or the member are variably modified.  */
118
  if (TYPE_PTR_TO_MEMBER_P (type))
119
    return (variably_modified_type_p (TYPE_PTRMEM_CLASS_TYPE (type), fn)
120
            || variably_modified_type_p (TYPE_PTRMEM_POINTED_TO_TYPE (type),
121
                                         fn));
122
 
123
  /* All other types are not variably modified.  */
124
  return false;
125
}
126
 
127
/* Construct a C++-aware pretty-printer for CONTEXT.  It is assumed
128
   that CONTEXT->printer is an already constructed basic pretty_printer.  */
129
void
130
cxx_initialize_diagnostics (diagnostic_context *context)
131
{
132
  pretty_printer *base = context->printer;
133
  cxx_pretty_printer *pp = XNEW (cxx_pretty_printer);
134
  memcpy (pp_base (pp), base, sizeof (pretty_printer));
135
  pp_cxx_pretty_printer_init (pp);
136
  context->printer = (pretty_printer *) pp;
137
 
138
  /* It is safe to free this object because it was previously malloc()'d.  */
139
  free (base);
140
}
141
 
142
/* This compares two types for equivalence ("compatible" in C-based languages).
143
   This routine should only return 1 if it is sure.  It should not be used
144
   in contexts where erroneously returning 0 causes problems.  */
145
 
146
int
147
cxx_types_compatible_p (tree x, tree y)
148
{
149
  return same_type_ignoring_top_level_qualifiers_p (x, y);
150
}
151
 
152
/* Return true if DECL is explicit member function.  */
153
 
154
bool
155
cp_function_decl_explicit_p (tree decl)
156
{
157
  return (decl
158
          && FUNCTION_FIRST_USER_PARMTYPE (decl) != void_list_node
159
          && DECL_NONCONVERTING_P (decl));
160
}
161
 
162
/* Stubs to keep c-opts.c happy.  */
163
void
164
push_file_scope (void)
165
{
166
}
167
 
168
void
169
pop_file_scope (void)
170
{
171
}
172
 
173
/* c-pragma.c needs to query whether a decl has extern "C" linkage.  */
174
bool
175
has_c_linkage (const_tree decl)
176
{
177
  return DECL_EXTERN_C_P (decl);
178
}
179
 
180
static GTY ((if_marked ("tree_map_marked_p"), param_is (struct tree_map)))
181
     htab_t shadowed_var_for_decl;
182
 
183
/* Lookup a shadowed var for FROM, and return it if we find one.  */
184
 
185
tree
186
decl_shadowed_for_var_lookup (tree from)
187
{
188
  struct tree_map *h, in;
189
  in.base.from = from;
190
 
191
  h = (struct tree_map *) htab_find_with_hash (shadowed_var_for_decl, &in,
192
                                               htab_hash_pointer (from));
193
  if (h)
194
    return h->to;
195
  return NULL_TREE;
196
}
197
 
198
/* Insert a mapping FROM->TO in the shadowed var hashtable.  */
199
 
200
void
201
decl_shadowed_for_var_insert (tree from, tree to)
202
{
203
  struct tree_map *h;
204
  void **loc;
205
 
206
  h = GGC_NEW (struct tree_map);
207
  h->hash = htab_hash_pointer (from);
208
  h->base.from = from;
209
  h->to = to;
210
  loc = htab_find_slot_with_hash (shadowed_var_for_decl, h, h->hash, INSERT);
211
  *(struct tree_map **) loc = h;
212
}
213
 
214
void
215
init_shadowed_var_for_decl (void)
216
{
217
  shadowed_var_for_decl = htab_create_ggc (512, tree_map_hash,
218
                                           tree_map_eq, 0);
219
}
220
 
221
 
222
#include "gt-cp-cp-objcp-common.h"

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.