/*
 * Copyright (c) 2013, 2019, 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.
 *
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package org.graalvm.compiler.phases.common;

import org.graalvm.compiler.debug.DebugCloseable;
import org.graalvm.compiler.nodes.StructuredGraph;
import org.graalvm.compiler.nodes.gc.BarrierSet;
import org.graalvm.compiler.nodes.memory.FixedAccessNode;
import org.graalvm.compiler.phases.BasePhase;
import org.graalvm.compiler.phases.tiers.MidTierContext;

public class WriteBarrierAdditionPhase extends BasePhase<MidTierContext> {
    @SuppressWarnings("try")
    @Override
    protected void run(StructuredGraph graph, MidTierContext context) {
        BarrierSet barrierSet = context.getGC().getBarrierSet();
        for (FixedAccessNode n : graph.getNodes().filter(FixedAccessNode.class)) {
            try (DebugCloseable scope = n.graph().withNodeSourcePosition(n)) {
                barrierSet.addBarriers(n);
            }
        }
    }

    @Override
    public boolean checkContract() {
        return false;
    }
}