JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2009, 2018, 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
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package org.graalvm.compiler.hotspot.nodes;

import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_8;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_8;

import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.hotspot.HotSpotBackend;
import org.graalvm.compiler.hotspot.HotSpotNodeLIRBuilder;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.ControlSinkNode;
import org.graalvm.compiler.nodes.ValueNode;
import org.graalvm.compiler.nodes.spi.LIRLowerable;
import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
import org.graalvm.compiler.word.Word;

/**
 * Sets up the {@linkplain HotSpotBackend#EXCEPTION_HANDLER_IN_CALLER arguments} expected by an
 * exception handler in the caller's frame, removes the current frame and jumps to said handler.
 */
@NodeInfo(cycles = CYCLES_8, size = SIZE_8)
public final class JumpToExceptionHandlerInCallerNode extends ControlSinkNode implements LIRLowerable {

    public static final NodeClass<JumpToExceptionHandlerInCallerNode> TYPE = NodeClass.create(JumpToExceptionHandlerInCallerNode.class);
    @Input ValueNode handlerInCallerPc;
    @Input ValueNode exception;
    @Input ValueNode exceptionPc;

    public JumpToExceptionHandlerInCallerNode(ValueNode handlerInCallerPc, ValueNode exception, ValueNode exceptionPc) {
        super(TYPE, StampFactory.forVoid());
        this.handlerInCallerPc = handlerInCallerPc;
        this.exception = exception;
        this.exceptionPc = exceptionPc;
    }

    @Override

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