/*
 * Copyright (c) 2014, 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
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 */
package org.graalvm.compiler.nodes.calc;

/**
 * Marker interface for nodes where it is valid to apply a {@link NarrowNode} to its inputs and do a
 * narrow operation instead of doing the wide operation and applying the {@link NarrowNode} to the
 * result.
 */
public interface NarrowableArithmeticNode {

    /**
     * Check whether this operation can be narrowed to {@code resultBits} bit without loss of
     * precision.
     *
     * @param resultBits
     */
    default boolean isNarrowable(int resultBits) {
        return true;
    }
}