80 lines
4.7 KiB
Modula-2
80 lines
4.7 KiB
Modula-2
|
/****************************************************************************
|
||
|
|
* *
|
||
|
|
* GNAT COMPILER COMPONENTS *
|
||
|
|
* *
|
||
|
|
* GNAT-SPECIFIC GCC TREE CODES *
|
||
|
|
* *
|
||
|
|
* Specification *
|
||
|
|
* *
|
||
|
|
* Copyright (C) 1992-2009, Free Software Foundation, Inc. *
|
||
|
|
* *
|
||
|
|
* GNAT is free software; you can redistribute it and/or modify it under *
|
||
|
|
* terms of the GNU General Public License as published by the Free Soft- *
|
||
|
|
* ware Foundation; either version 3, or (at your option) any later ver- *
|
||
|
|
* sion. GNAT is distributed in the hope that it will be useful, but WITH- *
|
||
|
|
* OUT 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/>. *
|
||
|
|
* *
|
||
|
|
* GNAT was originally developed by the GNAT team at New York University. *
|
||
|
|
* Extensive contributions were provided by Ada Core Technologies Inc. *
|
||
|
|
* *
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/* A type that is an unconstrained array. This node is never passed to GCC.
|
||
|
|
TREE_TYPE is the type of the fat pointer and TYPE_OBJECT_RECORD_TYPE is
|
||
|
|
the type of a record containing the template and data. */
|
||
|
|
DEFTREECODE (UNCONSTRAINED_ARRAY_TYPE, "unconstrained_array_type", tcc_type, 0)
|
||
|
|
|
||
|
|
/* A reference to an unconstrained array. This node only exists as an
|
||
|
|
intermediate node during the translation of a GNAT tree to a GCC tree;
|
||
|
|
it is never passed to GCC. The only field used is operand 0, which
|
||
|
|
is the fat pointer object. */
|
||
|
|
DEFTREECODE (UNCONSTRAINED_ARRAY_REF, "unconstrained_array_ref",
|
||
|
|
tcc_reference, 1)
|
||
|
|
|
||
|
|
/* An expression that returns an RTL suitable for its type. Operand 0
|
||
|
|
is an expression to be evaluated for side effects only. */
|
||
|
|
DEFTREECODE (NULL_EXPR, "null_expr", tcc_expression, 1)
|
||
|
|
|
||
|
|
/* Same as PLUS_EXPR, except that no modulo reduction is applied.
|
||
|
|
This is used for loops and never shows up in the tree. */
|
||
|
|
DEFTREECODE (PLUS_NOMOD_EXPR, "plus_nomod_expr", tcc_binary, 2)
|
||
|
|
|
||
|
|
/* Same as MINUS_EXPR, except that no modulo reduction is applied.
|
||
|
|
This is used for loops and never shows up in the tree. */
|
||
|
|
DEFTREECODE (MINUS_NOMOD_EXPR, "minus_nomod_expr", tcc_binary, 2)
|
||
|
|
|
||
|
|
/* An expression that computes an exponentiation. Operand 0 is the base and
|
||
|
|
Operand 1 is the exponent. This node is never passed to GCC: it is only
|
||
|
|
used internally to describe fixed point types scale factors. */
|
||
|
|
DEFTREECODE (POWER_EXPR, "power_expr", tcc_binary, 2)
|
||
|
|
|
||
|
|
/* Same as ADDR_EXPR, except that if the operand represents a bit field,
|
||
|
|
return the address of the byte containing the bit. This is used
|
||
|
|
for the Address attribute and never shows up in the tree. */
|
||
|
|
DEFTREECODE (ATTR_ADDR_EXPR, "attr_addr_expr", tcc_reference, 1)
|
||
|
|
|
||
|
|
/* Here are the tree codes for the statement types known to Ada. These
|
||
|
|
must be at the end of this file to allow IS_ADA_STMT to work. */
|
||
|
|
|
||
|
|
/* This is how record_code_position and insert_code_for work. The former
|
||
|
|
makes this tree node, whose operand is a statement. The latter inserts
|
||
|
|
the actual statements into this node. Gimplification consists of
|
||
|
|
just returning the inner statement. */
|
||
|
|
DEFTREECODE (STMT_STMT, "stmt_stmt", tcc_statement, 1)
|
||
|
|
|
||
|
|
/* A loop. LOOP_STMT_COND is the test to exit the loop. LOOP_STMT_UPDATE
|
||
|
|
is the statement to update the loop iteration variable at the continue
|
||
|
|
point. LOOP_STMT_BODY are the statements in the body of the loop. And
|
||
|
|
LOOP_STMT_LABEL points to the LABEL_DECL of the end label of the loop. */
|
||
|
|
DEFTREECODE (LOOP_STMT, "loop_stmt", tcc_statement, 4)
|
||
|
|
|
||
|
|
/* Conditionally exit a loop. EXIT_STMT_COND is the condition, which, if
|
||
|
|
true, will cause the loop to be exited. If no condition is specified,
|
||
|
|
the loop is unconditionally exited. EXIT_STMT_LABEL is the end label
|
||
|
|
corresponding to the loop to exit. */
|
||
|
|
DEFTREECODE (EXIT_STMT, "exit_stmt", tcc_statement, 2)
|