1 /* 2 * Copyright (c) 2011, 2019, 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.hotspot.nodes; 26 27 import static org.graalvm.compiler.nodeinfo.InputType.Memory; 28 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN; 29 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_UNKNOWN; 30 31 import java.util.Arrays; 32 33 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; 34 import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; 35 import org.graalvm.compiler.core.common.spi.ForeignCallsProvider; 36 import org.graalvm.compiler.core.common.type.Stamp; 37 import org.graalvm.compiler.graph.NodeClass; 38 import org.graalvm.compiler.graph.NodeInputList; 39 import org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil; 40 import org.graalvm.compiler.nodeinfo.NodeInfo; 41 import org.graalvm.compiler.nodeinfo.Verbosity; 42 import org.graalvm.compiler.nodes.FixedWithNextNode; 43 import org.graalvm.compiler.nodes.ValueNode; 44 import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; 45 import org.graalvm.compiler.nodes.spi.LIRLowerable; 46 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 47 import jdk.internal.vm.compiler.word.LocationIdentity; 48 49 import jdk.vm.ci.meta.Value; 50 51 /** 52 * Node for a {@linkplain ForeignCallDescriptor foreign} call from within a stub. 53 */ 54 @NodeInfo(nameTemplate = "StubForeignCall#{p#descriptor/s}", allowedUsageTypes = Memory, cycles = CYCLES_UNKNOWN, size = SIZE_UNKNOWN) 55 public final class StubForeignCallNode extends FixedWithNextNode implements LIRLowerable, MemoryCheckpoint.Multi { 56 57 public static final NodeClass<StubForeignCallNode> TYPE = NodeClass.create(StubForeignCallNode.class); 58 @Input NodeInputList<ValueNode> arguments; 59 protected final ForeignCallsProvider foreignCalls; 60 61 protected final ForeignCallDescriptor descriptor; 62 StubForeignCallNode(@njectedNodeParameter ForeignCallsProvider foreignCalls, @InjectedNodeParameter Stamp stamp, ForeignCallDescriptor descriptor, ValueNode... arguments)63 public StubForeignCallNode(@InjectedNodeParameter ForeignCallsProvider foreignCalls, @InjectedNodeParameter Stamp stamp, ForeignCallDescriptor descriptor, ValueNode... arguments) { 64 super(TYPE, stamp); 65 this.arguments = new NodeInputList<>(this, arguments); 66 this.descriptor = descriptor; 67 this.foreignCalls = foreignCalls; 68 } 69 getDescriptor()70 public ForeignCallDescriptor getDescriptor() { 71 return descriptor; 72 } 73 74 @Override getKilledLocationIdentities()75 public LocationIdentity[] getKilledLocationIdentities() { 76 LocationIdentity[] killedLocations = foreignCalls.getKilledLocations(descriptor); 77 killedLocations = Arrays.copyOf(killedLocations, killedLocations.length + 1); 78 killedLocations[killedLocations.length - 1] = HotSpotReplacementsUtil.PENDING_EXCEPTION_LOCATION; 79 return killedLocations; 80 } 81 operands(NodeLIRBuilderTool gen)82 protected Value[] operands(NodeLIRBuilderTool gen) { 83 Value[] operands = new Value[arguments.size()]; 84 for (int i = 0; i < operands.length; i++) { 85 operands[i] = gen.operand(arguments.get(i)); 86 } 87 return operands; 88 } 89 90 @Override generate(NodeLIRBuilderTool gen)91 public void generate(NodeLIRBuilderTool gen) { 92 assert graph().start() instanceof StubStartNode; 93 ForeignCallLinkage linkage = foreignCalls.lookupForeignCall(descriptor); 94 Value[] operands = operands(gen); 95 Value result = gen.getLIRGeneratorTool().emitForeignCall(linkage, null, operands); 96 if (result != null) { 97 gen.setResult(this, result); 98 } 99 } 100 101 @Override toString(Verbosity verbosity)102 public String toString(Verbosity verbosity) { 103 if (verbosity == Verbosity.Name) { 104 return super.toString(verbosity) + "#" + descriptor; 105 } 106 return super.toString(verbosity); 107 } 108 } 109