1 /* 2 * Copyright (c) 2013, 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.amd64; 26 27 import static org.graalvm.compiler.replacements.SnippetTemplate.DEFAULT_REPLACER; 28 29 import org.graalvm.compiler.api.replacements.Snippet; 30 import org.graalvm.compiler.api.replacements.SnippetReflectionProvider; 31 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; 32 import org.graalvm.compiler.debug.DebugHandlersFactory; 33 import org.graalvm.compiler.debug.GraalError; 34 import org.graalvm.compiler.graph.Node.ConstantNodeParameter; 35 import org.graalvm.compiler.graph.Node.NodeIntrinsic; 36 import org.graalvm.compiler.nodes.extended.ForeignCallNode; 37 import org.graalvm.compiler.nodes.spi.LoweringTool; 38 import org.graalvm.compiler.options.OptionValues; 39 import org.graalvm.compiler.phases.util.Providers; 40 import org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates; 41 import org.graalvm.compiler.replacements.SnippetTemplate.Arguments; 42 import org.graalvm.compiler.replacements.SnippetTemplate.SnippetInfo; 43 import org.graalvm.compiler.replacements.Snippets; 44 import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode; 45 import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode.UnaryOperation; 46 47 import jdk.vm.ci.code.TargetDescription; 48 49 public class AMD64X87MathSnippets implements Snippets { 50 51 private static final double PI_4 = Math.PI / 4; 52 53 @Snippet 54 public static double sin(double input) { 55 if (Math.abs(input) < PI_4) { 56 return AMD64X87MathIntrinsicNode.compute(input, UnaryOperation.SIN); 57 } 58 return callDouble1(UnaryOperation.SIN.foreignCallDescriptor, input); 59 } 60 61 @Snippet 62 public static double cos(double input) { 63 if (Math.abs(input) < PI_4) { 64 return AMD64X87MathIntrinsicNode.compute(input, UnaryOperation.COS); 65 } 66 return callDouble1(UnaryOperation.COS.foreignCallDescriptor, input); 67 } 68 69 @Snippet 70 public static double tan(double input) { 71 if (Math.abs(input) < PI_4) { 72 return AMD64X87MathIntrinsicNode.compute(input, UnaryOperation.TAN); 73 } 74 return callDouble1(UnaryOperation.TAN.foreignCallDescriptor, input); 75 } 76 77 @NodeIntrinsic(value = ForeignCallNode.class) 78 private static native double callDouble1(@ConstantNodeParameter ForeignCallDescriptor descriptor, double value); 79 80 public static class Templates extends AbstractTemplates { 81 82 private final SnippetInfo sin; 83 private final SnippetInfo cos; 84 private final SnippetInfo tan; 85 86 public Templates(OptionValues options, Iterable<DebugHandlersFactory> factories, Providers providers, SnippetReflectionProvider snippetReflection, TargetDescription target) { 87 super(options, factories, providers, snippetReflection, target); 88 89 sin = snippet(AMD64X87MathSnippets.class, "sin"); 90 cos = snippet(AMD64X87MathSnippets.class, "cos"); 91 tan = snippet(AMD64X87MathSnippets.class, "tan"); 92 } 93 94 public void lower(UnaryMathIntrinsicNode mathIntrinsicNode, LoweringTool tool) { 95 SnippetInfo info; 96 97 switch (mathIntrinsicNode.getOperation()) { 98 case SIN: 99 info = sin; 100 break; 101 case COS: 102 info = cos; 103 break; 104 case TAN: 105 info = tan; 106 break; 107 default: 108 throw GraalError.shouldNotReachHere("Snippet not found for math intrinsic " + mathIntrinsicNode.getOperation().name()); 109 } 110 111 Arguments args = new Arguments(info, mathIntrinsicNode.graph().getGuardsStage(), tool.getLoweringStage()); 112 args.add("input", mathIntrinsicNode.getValue()); 113 template(mathIntrinsicNode, args).instantiate(providers.getMetaAccess(), mathIntrinsicNode, DEFAULT_REPLACER, tool, args); 114 mathIntrinsicNode.safeDelete(); 115 } 116 } 117 }