/* * Copyright (c) 2013, 2016, 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 * or visit www.oracle.com if you need additional information or have any * questions. */ package org.graalvm.compiler.hotspot.nodes; import jdk.vm.ci.meta.JavaKind; import org.graalvm.compiler.core.common.LocationIdentity; import org.graalvm.compiler.core.common.type.StampFactory; import org.graalvm.compiler.graph.NodeClass; import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; import org.graalvm.compiler.lir.StandardOp.SaveRegistersOp; import org.graalvm.compiler.nodeinfo.InputType; import org.graalvm.compiler.nodeinfo.NodeInfo; import org.graalvm.compiler.nodes.FixedWithNextNode; import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; import org.graalvm.compiler.nodes.spi.LIRLowerable; import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; /** * Saves all allocatable registers. */ @NodeInfo(allowedUsageTypes = {InputType.Memory}) public final class SaveAllRegistersNode extends FixedWithNextNode implements LIRLowerable, MemoryCheckpoint.Single { public static final NodeClass TYPE = NodeClass.create(SaveAllRegistersNode.class); protected SaveRegistersOp saveRegistersOp; public SaveAllRegistersNode() { super(TYPE, StampFactory.forKind(JavaKind.Long)); } @Override public void generate(NodeLIRBuilderTool gen) { saveRegistersOp = ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitSaveAllRegisters(); } /** * @return the map from registers to the stack locations in they are saved */ public SaveRegistersOp getSaveRegistersOp() { assert saveRegistersOp != null : "saved registers op has not yet been created"; return saveRegistersOp; } /** * @return a token that couples this node to an {@link UncommonTrapCallNode} so that the latter * has access to the {@linkplain SaveRegistersOp#getMap register save map} */ @NodeIntrinsic public static native long saveAllRegisters(); @Override public LocationIdentity getLocationIdentity() { return LocationIdentity.any(); } }