view graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/ReplacementsUtil.java @ 21925:64475dbf6aec

Move instantiation checks from methods substitutions to the lowering of DynamicNewInstanceNode and DynamicNewArrayNode, so that Unsafe.allocateInstance and Array.newInstance can be intrinsified to a single node.
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 10 Jun 2015 17:23:19 -0700
parents 9d58a4cda922
children
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/*
 * Copyright (c) 2014, 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.replacements;

import com.oracle.graal.compiler.common.*;
import com.oracle.graal.replacements.nodes.*;

// JaCoCo Exclude
public final class ReplacementsUtil {
    private ReplacementsUtil() {
        // empty
    }

    private static final boolean REPLACEMENTS_ASSERTIONS_ENABLED;

    static {
        boolean assertionsEnabled = false;
        assert (assertionsEnabled = true) != false;
        REPLACEMENTS_ASSERTIONS_ENABLED = assertionsEnabled && GraalOptions.ImmutableCode.getValue() == null;
    }

    /**
     * Asserts that condition evaluates to true by the time compilation is finished. This is
     * intended to be used within snippets or stubs, and will lead to a compile error if the
     * assertion fails.
     */
    public static void staticAssert(boolean condition, String message) {
        if (REPLACEMENTS_ASSERTIONS_ENABLED) {
            AssertionNode.assertion(true, condition, message);
        }
    }

    /**
     * Asserts that condition evaluates to true at runtime. This is intended to be used within
     * snippets or stubs, and will lead to a VM error if it fails.
     */
    public static void runtimeAssert(boolean condition, String message) {
        if (REPLACEMENTS_ASSERTIONS_ENABLED) {
            AssertionNode.assertion(false, condition, message);
        }
    }
}