Mercurial > hg > truffle
view graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/MathIntrinsicNode.java @ 18998:ec0733b5a90a
Allow final modifier on node subclasses and start adding the modifier to leaf classes.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 28 Jan 2015 02:34:14 +0100 |
parents | f57d86eb036f |
children | 7e2c87dae93e |
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/* * Copyright (c) 2012, 2014, 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.nodes; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.lir.gen.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.nodes.spi.*; @NodeInfo public class MathIntrinsicNode extends UnaryNode implements ArithmeticLIRLowerable { protected final Operation operation; public enum Operation { LOG, LOG10, SIN, COS, TAN } public Operation operation() { return operation; } public MathIntrinsicNode(ValueNode value, Operation op) { super(StampFactory.forKind(Kind.Double), value); assert value.stamp() instanceof FloatStamp && PrimitiveStamp.getBits(value.stamp()) == 64; this.operation = op; } @Override public void generate(NodeMappableLIRBuilder builder, ArithmeticLIRGenerator gen) { Value input = builder.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 GraalInternalError.shouldNotReachHere(); } builder.setResult(this, result); } @Override public ValueNode canonical(CanonicalizerTool tool, ValueNode forValue) { if (forValue.isConstant()) { double ret = doCompute(forValue.asJavaConstant().asDouble(), operation()); return ConstantNode.forDouble(ret); } return this; } @NodeIntrinsic public static double compute(double value, @ConstantNodeParameter Operation op) { return doCompute(value, 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 GraalInternalError("unknown op %s", op); } } }