Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/ops/MulOp.java @ 7292:213c1297a814
Simple Language: A simple dynamic programming language to demonstrate Truffle features
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Fri, 21 Dec 2012 10:45:37 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/ops/MulOp.java Fri Dec 21 10:45:37 2012 -0800 @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2012, 2012, 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.ops; + +import java.math.*; + +import com.oracle.truffle.api.codegen.*; +import com.oracle.truffle.api.intrinsics.*; +import com.oracle.truffle.sl.types.*; + +@Operation(typeSystem = Types.class, values = {"left", "right"}) +public class MulOp { + + @Specialization + @SpecializationThrows(javaClass = ArithmeticException.class, transitionTo = "doBigInteger") + public int doInteger(int left, int right) { + return ExactMath.multiplyExact(left, right); + } + + @Specialization + public BigInteger doBigInteger(BigInteger left, BigInteger right) { + return left.multiply(right); + } + + @Generic + public Object doGeneric(Object left, Object right) { + throw new RuntimeException("multiplication not defined for types " + left.getClass().getSimpleName() + ", " + right.getClass().getSimpleName()); + } +}