comparison gcc/c-family/c-common.def @ 68:561a7518be6b

update gcc-4.6
author Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date Sun, 21 Aug 2011 07:07:55 +0900
parents
children 04ced10e8804
comparison
equal deleted inserted replaced
67:f6334be47118 68:561a7518be6b
1 /* This file contains the definitions and documentation for the
2 additional tree codes used in the GNU C compiler (see tree.def
3 for the standard codes).
4 Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998,
5 1999, 2000, 2001, 2004, 2005, 2007, 2009, 2010
6 Free Software Foundation, Inc.
7 Written by Benjamin Chelf <chelf@codesourcery.com>
8
9 This file is part of GCC.
10
11 GCC is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free
13 Software Foundation; either version 3, or (at your option) any later
14 version.
15
16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GCC; see the file COPYING3. If not see
23 <http://www.gnu.org/licenses/>. */
24
25 /* Tree nodes used in the C frontend. These are also shared with the
26 C++ and Objective C frontends. */
27
28 /* A C_MAYBE_CONST_EXPR, currently only used for C and Objective C,
29 tracks information about constancy of an expression and VLA type
30 sizes or VM expressions from typeof that need to be evaluated
31 before the main expression. It is used during parsing and removed
32 in c_fully_fold. C_MAYBE_CONST_EXPR_PRE is the expression to
33 evaluate first, if not NULL; C_MAYBE_CONST_EXPR_EXPR is the main
34 expression. If C_MAYBE_CONST_EXPR_INT_OPERANDS is set then the
35 expression may be used in an unevaluated part of an integer
36 constant expression, but not in an evaluated part. If
37 C_MAYBE_CONST_EXPR_NON_CONST is set then the expression contains
38 something that cannot occur in an evaluated part of a constant
39 expression (or outside of sizeof in C90 mode); otherwise it does
40 not. */
41 DEFTREECODE (C_MAYBE_CONST_EXPR, "c_maybe_const_expr", tcc_expression, 2)
42
43 /* An EXCESS_PRECISION_EXPR, currently only used for C and Objective
44 C, represents an expression evaluated in greater range or precision
45 than its type. The type of the EXCESS_PRECISION_EXPR is the
46 semantic type while the operand represents what is actually being
47 evaluated. */
48 DEFTREECODE (EXCESS_PRECISION_EXPR, "excess_precision_expr", tcc_expression, 1)
49
50 /*
51 Local variables:
52 mode:c
53 End:
54 */