| /* |
| * Copyright (c) 2014, 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.amd64; |
| |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_20; |
| |
| import org.graalvm.compiler.core.amd64.AMD64NodeLIRBuilder; |
| import org.graalvm.compiler.core.common.type.RawPointerStamp; |
| import org.graalvm.compiler.core.common.type.Stamp; |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.graph.NodeInputList; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.FixedWithNextNode; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.spi.LIRLowerable; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| |
| import jdk.vm.ci.code.CallingConvention; |
| import jdk.vm.ci.hotspot.HotSpotCallingConventionType; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.JavaType; |
| import jdk.vm.ci.meta.MetaAccessProvider; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| import jdk.vm.ci.meta.Value; |
| |
| @NodeInfo(cycles = CYCLES_UNKNOWN, cyclesRationale = "Native call is a block hole", size = SIZE_20) |
| public final class AMD64RawNativeCallNode extends FixedWithNextNode implements LIRLowerable { |
| public static final NodeClass<AMD64RawNativeCallNode> TYPE = NodeClass.create(AMD64RawNativeCallNode.class); |
| |
| protected final JavaConstant functionPointer; |
| @Input NodeInputList<ValueNode> args; |
| |
| public AMD64RawNativeCallNode(JavaKind returnType, JavaConstant functionPointer, ValueNode[] args) { |
| super(TYPE, StampFactory.forKind(returnType)); |
| this.functionPointer = functionPointer; |
| this.args = new NodeInputList<>(this, args); |
| } |
| |
| private static class PointerType implements JavaType { |
| |
| @Override |
| public String getName() { |
| return "void*"; |
| } |
| |
| @Override |
| public JavaType getComponentType() { |
| return null; |
| } |
| |
| @Override |
| public JavaType getArrayClass() { |
| return null; |
| } |
| |
| @Override |
| public JavaKind getJavaKind() { |
| // native pointers and java objects use the same registers in the calling convention |
| return JavaKind.Object; |
| } |
| |
| @Override |
| public ResolvedJavaType resolve(ResolvedJavaType accessingClass) { |
| return null; |
| } |
| } |
| |
| private static JavaType toJavaType(Stamp stamp, MetaAccessProvider metaAccess) { |
| if (stamp instanceof RawPointerStamp) { |
| return new PointerType(); |
| } else { |
| return stamp.javaType(metaAccess); |
| } |
| } |
| |
| @Override |
| public void generate(NodeLIRBuilderTool generator) { |
| AMD64NodeLIRBuilder gen = (AMD64NodeLIRBuilder) generator; |
| Value[] parameter = new Value[args.count()]; |
| JavaType[] parameterTypes = new JavaType[args.count()]; |
| for (int i = 0; i < args.count(); i++) { |
| parameter[i] = generator.operand(args.get(i)); |
| parameterTypes[i] = toJavaType(args.get(i).stamp(), gen.getLIRGeneratorTool().getMetaAccess()); |
| } |
| JavaType returnType = toJavaType(stamp(), gen.getLIRGeneratorTool().getMetaAccess()); |
| CallingConvention cc = generator.getLIRGeneratorTool().getCodeCache().getRegisterConfig().getCallingConvention(HotSpotCallingConventionType.NativeCall, returnType, parameterTypes, |
| generator.getLIRGeneratorTool()); |
| gen.getLIRGeneratorTool().emitCCall(functionPointer.asLong(), cc, parameter, countFloatingTypeArguments(args)); |
| if (this.getStackKind() != JavaKind.Void) { |
| generator.setResult(this, gen.getLIRGeneratorTool().emitMove(cc.getReturn())); |
| } |
| } |
| |
| private static int countFloatingTypeArguments(NodeInputList<ValueNode> args) { |
| int count = 0; |
| for (ValueNode n : args) { |
| if (n.getStackKind() == JavaKind.Double || n.getStackKind() == JavaKind.Float) { |
| count++; |
| } |
| } |
| if (count > 8) { |
| return 8; |
| } |
| return count; |
| } |
| |
| } |