view graal/com.oracle.graal.truffle.test/src/com/oracle/graal/truffle/test/nodes/RecursionTestNode.java @ 21930:b09503284ac8

Limit inlining depth during partial evaluation to avoid StackOverflowError, provide useful error message instead
author Christian Wimmer <christian.wimmer@oracle.com>
date Thu, 11 Jun 2015 16:20:13 -0700
parents
children
line wrap: on
line source

/*
 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.graal.truffle.test.nodes;

import com.oracle.truffle.api.frame.*;
import com.oracle.truffle.api.nodes.*;

@NodeInfo
public class RecursionTestNode extends AbstractTestNode {

    private final int depth;

    public RecursionTestNode(int depth) {
        this.depth = depth;
    }

    @Override
    public int execute(VirtualFrame frame) {
        return a(depth);
    }

    private static int a(int depth) {
        if (depth == 0) {
            return 42;
        } else {
            return a(depth - 1);
        }
    }
}