/**************************************************************************** * * * GNAT COMPILER COMPONENTS * * * * GNAT-SPECIFIC GCC TREE CODES * * * * Specification * * * * Copyright (C) 1992-2004 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 2, 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 distributed with GNAT; see file COPYING. If not, write * * to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, * * MA 02111-1307, USA. * * * * 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 itself. 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 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_TOP_COND and LOOP_STMT_BOT_COND are the tests to exit a loop at the top and bottom, respectively. LOOP_STMT_UPDATE is the statement to update the loop iterator at the continue point. LOOP_STMT_BODY are the statements in the body of the loop. LOOP_STMT_LABEL points to the LABEL_DECL of the end label of the loop. */ DEFTREECODE (LOOP_STMT, "loop_stmt", tcc_statement, 5) /* 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) /* A exception region. REGION_STMT_BODY is the statement to be executed inside the region. REGION_STMT_HANDLE is a statement that represents the exception handlers (usually a BLOCK_STMT of HANDLE_STMTs). REGION_STMT_BLOCK is the BLOCK node for the declarative region, if any. */ DEFTREECODE (REGION_STMT, "region_stmt", tcc_statement, 3) /* An exception handler. HANDLER_STMT_ARG is the value to pass to expand_start_catch, HANDLER_STMT_LIST is the list of statements for the handler itself, and HANDLER_STMT_BLOCK is the BLOCK node for this binding. */ DEFTREECODE (HANDLER_STMT, "handler_stmt", tcc_statement, 3) /* A statement that emits a USE for its single operand. */ DEFTREECODE (USE_STMT, "use_expr", tcc_statement, 1)