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Diffstat (limited to 'gcc/c-family/c-common.def')
| -rw-r--r-- | gcc/c-family/c-common.def | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/c-family/c-common.def b/gcc/c-family/c-common.def new file mode 100644 index 00000000000..1c593633e12 --- /dev/null +++ b/gcc/c-family/c-common.def @@ -0,0 +1,53 @@ +/* This file contains the definitions and documentation for the + additional tree codes used in the GNU C compiler (see tree.def + for the standard codes). + Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998, + 1999, 2000, 2001, 2004, 2005, 2007, 2009 Free Software Foundation, Inc. + Written by Benjamin Chelf <chelf@codesourcery.com> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +/* Tree nodes used in the C frontend. These are also shared with the + C++ and Objective C frontends. */ + +/* A C_MAYBE_CONST_EXPR, currently only used for C and Objective C, + tracks information about constancy of an expression and VLA type + sizes or VM expressions from typeof that need to be evaluated + before the main expression. It is used during parsing and removed + in c_fully_fold. C_MAYBE_CONST_EXPR_PRE is the expression to + evaluate first, if not NULL; C_MAYBE_CONST_EXPR_EXPR is the main + expression. If C_MAYBE_CONST_EXPR_INT_OPERANDS is set then the + expression may be used in an unevaluated part of an integer + constant expression, but not in an evaluated part. If + C_MAYBE_CONST_EXPR_NON_CONST is set then the expression contains + something that cannot occur in an evaluated part of a constant + expression (or outside of sizeof in C90 mode); otherwise it does + not. */ +DEFTREECODE (C_MAYBE_CONST_EXPR, "c_maybe_const_expr", tcc_expression, 2) + +/* An EXCESS_PRECISION_EXPR, currently only used for C and Objective + C, represents an expression evaluated in greater range or precision + than its type. The type of the EXCESS_PRECISION_EXPR is the + semantic type while the operand represents what is actually being + evaluated. */ +DEFTREECODE (EXCESS_PRECISION_EXPR, "excess_precision_expr", tcc_expression, 1) + +/* +Local variables: +mode:c +End: +*/ |