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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * accompanied this code).
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package org.graalvm.compiler.nodes.calc;

import org.graalvm.compiler.core.common.type.ArithmeticOpTable;
import org.graalvm.compiler.core.common.type.ArithmeticOpTable.BinaryOp;
import org.graalvm.compiler.core.common.type.ArithmeticOpTable.BinaryOp.Max;
import org.graalvm.compiler.core.common.type.FloatStamp;
import org.graalvm.compiler.core.common.type.Stamp;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.ConstantNode;
import org.graalvm.compiler.nodes.NodeView;
import org.graalvm.compiler.nodes.ValueNode;

@NodeInfo(shortName = "MAX")
public class MaxNode extends MinMaxNode<Max> {

    public static final NodeClass<MaxNode> TYPE = NodeClass.create(MaxNode.class);

    protected MaxNode(ValueNode x, ValueNode y) {
        super(TYPE, getArithmeticOpTable(x).getMax(), x, y);
    }

    @Override
    protected BinaryOp<Max> getOp(ArithmeticOpTable table) {
        return table.getMax();
    }

    public static ValueNode create(ValueNode x, ValueNode y, NodeView view) {
        BinaryOp<Max> op = ArithmeticOpTable.forStamp(x.stamp(view)).getMax();
        Stamp stamp = op.foldStamp(x.stamp(view), y.stamp(view));
        assert stamp instanceof FloatStamp;
        ConstantNode tryConstantFold = tryConstantFold(op, x, y, stamp, view);
        if (tryConstantFold != null) {
            return tryConstantFold;
        }
        return new MaxNode(x, y).maybeCommuteInputs();
    }
}