package org.graalvm.compiler.nodes.java;
import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_8;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_8;
import org.graalvm.compiler.core.common.LIRKind;
import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.lir.gen.LIRGeneratorTool;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.NodeView;
import org.graalvm.compiler.nodes.ValueNode;
import org.graalvm.compiler.nodes.memory.address.AddressNode;
import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
import jdk.internal.vm.compiler.word.LocationIdentity;
import jdk.vm.ci.meta.JavaConstant;
import jdk.vm.ci.meta.JavaKind;
import jdk.vm.ci.meta.Value;
@NodeInfo(cycles = CYCLES_8, size = SIZE_8)
public final class LogicCompareAndSwapNode extends AbstractCompareAndSwapNode {
public static final NodeClass<LogicCompareAndSwapNode> TYPE = NodeClass.create(LogicCompareAndSwapNode.class);
public LogicCompareAndSwapNode(ValueNode address, ValueNode expectedValue, ValueNode newValue, LocationIdentity location) {
this((AddressNode) address, location, expectedValue, newValue, BarrierType.NONE);
}
public LogicCompareAndSwapNode(AddressNode address, LocationIdentity location, ValueNode expectedValue, ValueNode newValue, BarrierType barrierType) {
super(TYPE, address, location, expectedValue, newValue, barrierType, StampFactory.forKind(JavaKind.Boolean.getStackKind()));
}
@Override
public void generate(NodeLIRBuilderTool gen) {
assert getNewValue().stamp(NodeView.DEFAULT).isCompatible(getExpectedValue().stamp(NodeView.DEFAULT));
assert !this.canDeoptimize();
LIRGeneratorTool tool = gen.getLIRGeneratorTool();
LIRKind resultKind = tool.getLIRKind(stamp(NodeView.DEFAULT));
Value trueResult = tool.emitConstant(resultKind, JavaConstant.TRUE);
Value falseResult = tool.emitConstant(resultKind, JavaConstant.FALSE);
Value result = tool.emitLogicCompareAndSwap(tool.getLIRKind(getAccessStamp()), gen.operand(getAddress()), gen.operand(getExpectedValue()), gen.operand(getNewValue()), trueResult, falseResult);
gen.setResult(this, result);
}
}