Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/expression/SLDivNode.java @ 21615:838f005f9aec
handle service filtering that returns an empty result
author | Doug Simon <doug.simon@oracle.com> |
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date | Sun, 31 May 2015 14:30:13 +0200 |
parents | b625b459cf45 |
children |
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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.truffle.sl.nodes.expression; import java.math.*; import com.oracle.truffle.api.dsl.*; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.api.source.*; import com.oracle.truffle.sl.nodes.*; /** * This class is similar to the extensively documented {@link SLAddNode}. Divisions by 0 throw the * same {@link ArithmeticException exception} as in Java, SL has no special handling for it to keep * the code simple. */ @NodeInfo(shortName = "/") public abstract class SLDivNode extends SLBinaryNode { public SLDivNode(SourceSection src) { super(src); } @Specialization(rewriteOn = ArithmeticException.class) protected long div(long left, long right) throws ArithmeticException { long result = left / right; /* * The division overflows if left is Long.MIN_VALUE and right is -1. */ if ((left & right & result) < 0) { throw new ArithmeticException("long overflow"); } return result; } @Specialization protected BigInteger div(BigInteger left, BigInteger right) { return left.divide(right); } }