1 /*

     2  * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 

    25 package org.graalvm.compiler.replacements.nodes;

    26 

    27 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_2;

    28 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;

    29 

    30 import org.graalvm.compiler.core.common.LIRKind;

    31 import org.graalvm.compiler.core.common.type.StampFactory;

    32 import org.graalvm.compiler.graph.NodeClass;

    33 import org.graalvm.compiler.nodeinfo.NodeInfo;

    34 import org.graalvm.compiler.nodes.FixedWithNextNode;

    35 import org.graalvm.compiler.nodes.StateSplit;

    36 import org.graalvm.compiler.nodes.ValueNode;

    37 import org.graalvm.compiler.nodes.extended.RawStoreNode;

    38 import org.graalvm.compiler.nodes.spi.LIRLowerable;

    39 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;

    40 

    41 import jdk.vm.ci.meta.JavaKind;

    42 import jdk.vm.ci.meta.Value;

    43 

    44 /**

    45  * A special purpose store node that differs from {@link RawStoreNode} in that it is not a

    46  * {@link StateSplit} and takes a computed address instead of an object.

    47  */

    48 @NodeInfo(cycles = CYCLES_2, size = SIZE_1)

    49 public final class DirectStoreNode extends FixedWithNextNode implements LIRLowerable {

    50 

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

    52     @Input protected ValueNode address;

    53     @Input protected ValueNode value;

    54     protected final JavaKind kind;

    55 

    56     public DirectStoreNode(ValueNode address, ValueNode value, JavaKind kind) {

    57         super(TYPE, StampFactory.forVoid());

    58         this.address = address;

    59         this.value = value;

    60         this.kind = kind;

    61     }

    62 

    63     @Override

    64     public void generate(NodeLIRBuilderTool gen) {

    65         Value v = gen.operand(value);

    66         LIRKind lirKind = LIRKind.fromJavaKind(gen.getLIRGeneratorTool().target().arch, kind);

    67         gen.getLIRGeneratorTool().getArithmetic().emitStore(lirKind, gen.operand(address), v, null);

    68     }

    69 

    70     public ValueNode getAddress() {

    71         return address;

    72     }

    73 

    74     public ValueNode getValue() {

    75         return value;

    76     }

    77 

    78     @NodeIntrinsic

    79     public static native void storeBoolean(long address, boolean value, @ConstantNodeParameter JavaKind kind);

    80 }