* flow.c (clear_log_links): Use free_INSN_LIST_list, not

[pf3gnuchains/gcc-fork.git] / gcc / tree.def

diff --git a/gcc/tree.def b/gcc/tree.def
index fe1fddb..8a02e5b 100644 (file)
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -3,22 +3,22 @@
    Copyright (C) 1987, 1988, 1993, 1995, 1997, 1998, 2000, 2001
    Free Software Foundation, Inc.
 
-This file is part of GNU CC.
+This file is part of GCC.
 
-GNU CC 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 2, or (at your option)
-any later version.
+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 2, or (at your option) any later
+version.
 
-GNU CC 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.
+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 GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
 
  
 /* The third argument can be:
@@ -51,11 +51,6 @@ DEFTREECODE (ERROR_MARK, "error_mark", 'x', 0)
    Use `get_identifier' to get it (or create it, the first time).  */
 DEFTREECODE (IDENTIFIER_NODE, "identifier_node", 'x', -1)
 
-/* Used to hold information to identify an operator (or combination
-   of two operators) considered as a `noun' rather than a `verb'.
-   The first operand is encoded in the TREE_TYPE field.  */
-DEFTREECODE (OP_IDENTIFIER, "op_identifier", 'x', 2)
-
 /* Has the TREE_VALUE and TREE_PURPOSE fields.  */
 /* These nodes are made into lists by chaining through the
    TREE_CHAIN field.  The elements of the list live in the
@@ -374,11 +369,18 @@ DEFTREECODE (BUFFER_REF, "buffer_ref", 'r', 1)
    Operand 0 is the array; operand 1 is a (single) array index. */
 DEFTREECODE (ARRAY_REF, "array_ref", 'r', 2)
 
-/* Likewise, except that the result is a range of the array.  The starting
-   index of the array is taken from operand 0 and the size of the range
-   is taken from the type of the expression.  */
+/* Likewise, except that the result is a range ("slice") of the array.  The
+   starting index of the resulting array is taken from operand 1 and the size
+   of the range is taken from the type of the expression.  */
 DEFTREECODE (ARRAY_RANGE_REF, "array_range_ref", 'r', 2)
 
+/* Vtable indexing.  Carries data useful for emitting information
+   for vtable garbage collection.
+   Operand 0: an array_ref (or equivalent expression)
+   Operand 1: the vtable base (must be a var_decl)
+   Operand 2: index into vtable (must be an integer_cst).  */
+DEFTREECODE (VTABLE_REF, "vtable_ref", 'r', 3)
+
 /* Constructor: return an aggregate value made from specified components.
    In C, this is used only for structure and array initializers.
    Also used for SET_TYPE in Chill (and potentially Pascal).
@@ -472,8 +474,8 @@ DEFTREECODE (METHOD_CALL_EXPR, "method_call_expr", 'e', 4)
 
 /* Specify a value to compute along with its corresponding cleanup.
    Operand 0 argument is an expression whose value needs a cleanup.
-   Operand 1 is an RTL_EXPR which will eventually represent that value.
-   Operand 2 is the cleanup expression for the object.
+   Operand 1 is the cleanup expression for the object.
+   Operand 2 is an RTL_EXPR which will eventually represent that value.
      The RTL_EXPR is used in this expression, which is how the expression
      manages to act on the proper value.
    The cleanup is executed by the first enclosing CLEANUP_POINT_EXPR, if
@@ -599,10 +601,6 @@ DEFTREECODE (FIX_ROUND_EXPR, "fix_round_expr", '1', 1)
 /* Conversion of an integer to a real.  */
 DEFTREECODE (FLOAT_EXPR, "float_expr", '1', 1)
 
-/* Exponentiation.  Operands may have any types;
-   constraints on value type are not known yet.  */
-DEFTREECODE (EXPON_EXPR, "expon_expr", '2', 2)
-
 /* Unary negation.  */
 DEFTREECODE (NEGATE_EXPR, "negate_expr", '1', 1)
 
@@ -621,7 +619,9 @@ DEFTREECODE (FFS_EXPR, "ffs_expr", '1', 1)
    Shift means logical shift if done on an
    unsigned type, arithmetic shift if done on a signed type.
    The second operand is the number of bits to
-   shift by; it need not be the same type as the first operand and result.  */
+   shift by; it need not be the same type as the first operand and result.
+   Note that the result is undefined if the second operand is larger
+   than the first operand's type size.  */
 DEFTREECODE (LSHIFT_EXPR, "lshift_expr", '2', 2)
 DEFTREECODE (RSHIFT_EXPR, "rshift_expr", '2', 2)
 DEFTREECODE (LROTATE_EXPR, "lrotate_expr", '2', 2)
@@ -723,9 +723,13 @@ DEFTREECODE (ADDR_EXPR, "addr_expr", 'e', 1)
 DEFTREECODE (REFERENCE_EXPR, "reference_expr", 'e', 1)
 
 /* Operand is a function constant; result is a function variable value
-   of typeEPmode.  Used only for languages that need static chains.  */
+   of type EPmode.  Used only for languages that need static chains.  */
 DEFTREECODE (ENTRY_VALUE_EXPR, "entry_value_expr", 'e', 1)
 
+/* Operand0 is a function constant; result is part N of a function 
+   descriptor of type ptr_mode.  */
+DEFTREECODE (FDESC_EXPR, "fdesc_expr", 'e', 2)
+
 /* Given two real or integer operands of the same type,
    returns a complex value of the corresponding complex type.  */
 DEFTREECODE (COMPLEX_EXPR, "complex_expr", '2', 2)