Mercurial > hg > graal-compiler
view graal/com.oracle.graal.replacements.amd64/src/com/oracle/graal/replacements/amd64/AMD64MathIntrinsicNode.java @ 22758:5613c604c684
Avoid unnecessary compiler initialization in HotSpotTruffleRuntime.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Mon, 05 Oct 2015 14:55:24 +0200 |
parents | 05183a084a08 |
children | 26bbed810326 |
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/* * Copyright (c) 2012, 2015, 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 com.oracle.graal.replacements.amd64; import jdk.internal.jvmci.common.JVMCIError; import jdk.internal.jvmci.meta.JavaKind; import jdk.internal.jvmci.meta.Value; import com.oracle.graal.compiler.common.type.FloatStamp; import com.oracle.graal.compiler.common.type.PrimitiveStamp; import com.oracle.graal.compiler.common.type.StampFactory; import com.oracle.graal.graph.NodeClass; import com.oracle.graal.graph.spi.CanonicalizerTool; import com.oracle.graal.lir.amd64.AMD64ArithmeticLIRGenerator; import com.oracle.graal.lir.gen.ArithmeticLIRGenerator; import com.oracle.graal.nodeinfo.NodeInfo; import com.oracle.graal.nodes.ConstantNode; import com.oracle.graal.nodes.ValueNode; import com.oracle.graal.nodes.calc.UnaryNode; import com.oracle.graal.nodes.spi.ArithmeticLIRLowerable; import com.oracle.graal.nodes.spi.NodeValueMap; @NodeInfo public final class AMD64MathIntrinsicNode extends UnaryNode implements ArithmeticLIRLowerable { public static final NodeClass<AMD64MathIntrinsicNode> TYPE = NodeClass.create(AMD64MathIntrinsicNode.class); protected final Operation operation; public enum Operation { LOG, LOG10, SIN, COS, TAN } public Operation operation() { return operation; } public static ValueNode create(ValueNode value, Operation op) { ValueNode c = tryConstantFold(value, op); if (c != null) { return c; } return new AMD64MathIntrinsicNode(value, op); } protected static ValueNode tryConstantFold(ValueNode value, Operation op) { if (value.isConstant()) { double ret = doCompute(value.asJavaConstant().asDouble(), op); return ConstantNode.forDouble(ret); } return null; } protected AMD64MathIntrinsicNode(ValueNode value, Operation op) { super(TYPE, StampFactory.forKind(JavaKind.Double), value); assert value.stamp() instanceof FloatStamp && PrimitiveStamp.getBits(value.stamp()) == 64; this.operation = op; } @Override public void generate(NodeValueMap nodeValueMap, ArithmeticLIRGenerator lirGen) { AMD64ArithmeticLIRGenerator gen = (AMD64ArithmeticLIRGenerator) lirGen; Value input = nodeValueMap.operand(getValue()); Value result; switch (operation()) { case LOG: result = gen.emitMathLog(input, false); break; case LOG10: result = gen.emitMathLog(input, true); break; case SIN: result = gen.emitMathSin(input); break; case COS: result = gen.emitMathCos(input); break; case TAN: result = gen.emitMathTan(input); break; default: throw JVMCIError.shouldNotReachHere(); } nodeValueMap.setResult(this, result); } @Override public ValueNode canonical(CanonicalizerTool tool, ValueNode forValue) { ValueNode c = tryConstantFold(forValue, operation()); if (c != null) { return c; } return this; } @NodeIntrinsic public static native double compute(double value, @ConstantNodeParameter Operation op); private static double doCompute(double value, Operation op) { switch (op) { case LOG: return Math.log(value); case LOG10: return Math.log10(value); case SIN: return Math.sin(value); case COS: return Math.cos(value); case TAN: return Math.tan(value); default: throw new JVMCIError("unknown op %s", op); } } }