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

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