1 /* 2 * Copyright (c) 2015, 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 package org.graalvm.compiler.replacements.aarch64; 24 25 import org.graalvm.compiler.bytecode.BytecodeProvider; 26 import org.graalvm.compiler.core.common.spi.ForeignCallsProvider; 27 import org.graalvm.compiler.nodes.ValueNode; 28 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins; 29 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext; 30 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin; 31 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins; 32 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration; 33 import org.graalvm.compiler.replacements.nodes.BitScanForwardNode; 34 35 import jdk.vm.ci.meta.JavaKind; 36 import jdk.vm.ci.meta.ResolvedJavaMethod; 37 38 public class AArch64GraphBuilderPlugins { 39 40 public static void register(Plugins plugins, ForeignCallsProvider foreignCalls, BytecodeProvider bytecodeProvider) { 41 InvocationPlugins invocationPlugins = plugins.getInvocationPlugins(); 42 invocationPlugins.defer(new Runnable() { 43 @Override 44 public void run() { 45 registerIntegerLongPlugins(invocationPlugins, AArch64IntegerSubstitutions.class, JavaKind.Int, bytecodeProvider); 46 registerIntegerLongPlugins(invocationPlugins, AArch64LongSubstitutions.class, JavaKind.Long, bytecodeProvider); 47 registerMathPlugins(invocationPlugins, foreignCalls); 48 } 49 }); 50 } 51 52 private static void registerIntegerLongPlugins(InvocationPlugins plugins, Class<?> substituteDeclaringClass, JavaKind kind, BytecodeProvider bytecodeProvider) { 53 Class<?> declaringClass = kind.toBoxedJavaClass(); 54 Class<?> type = kind.toJavaClass(); 55 Registration r = new Registration(plugins, declaringClass, bytecodeProvider); 56 r.register1("numberOfLeadingZeros", type, new InvocationPlugin() { 57 @Override 58 public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode value) { 59 ValueNode folded = AArch64CountLeadingZerosNode.tryFold(value); 60 if (folded != null) { 61 b.addPush(JavaKind.Int, folded); 62 } else { 63 b.addPush(JavaKind.Int, new AArch64CountLeadingZerosNode(value)); 64 } 65 return true; 66 } 67 }); 68 r.register1("numberOfTrailingZeros", type, new InvocationPlugin() { 69 @Override 70 public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode value) { 71 ValueNode folded = BitScanForwardNode.tryFold(value); 72 if (folded != null) { 73 b.addPush(JavaKind.Int, folded); 74 } else { 75 b.addPush(JavaKind.Int, new BitScanForwardNode(value)); 76 } 77 return true; 78 } 79 }); 80 r.registerMethodSubstitution(substituteDeclaringClass, "bitCount", type); 81 } 82 83 @SuppressWarnings("unused") 84 private static void registerMathPlugins(InvocationPlugins plugins, ForeignCallsProvider foreignCalls) { 85 // Registration r = new Registration(plugins, Math.class); 86 // r.register1("sin", Double.TYPE, new ForeignCallPlugin(foreignCalls, ARITHMETIC_SIN)); 87 // r.register1("cos", Double.TYPE, new ForeignCallPlugin(foreignCalls, ARITHMETIC_COS)); 88 // r.register1("tan", Double.TYPE, new ForeignCallPlugin(foreignCalls, ARITHMETIC_TAN)); 89 // r.register1("exp", Double.TYPE, new ForeignCallPlugin(foreignCalls, ARITHMETIC_EXP)); 90 // r.register1("log", Double.TYPE, new ForeignCallPlugin(foreignCalls, ARITHMETIC_LOG)); 91 // r.register1("log10", Double.TYPE, new ForeignCallPlugin(foreignCalls, ARITHMETIC_LOG10)); 92 // r.register2("pow", Double.TYPE, Double.TYPE, new ForeignCallPlugin(foreignCalls, 93 // ARITHMETIC_POW)); 94 } 95 }