Mercurial > hg > truffle
view test/compiler/intrinsics/multiplytolen/TestMultiplyToLen.java @ 20828:89eabd695957
Disable new graph partial evaluator by default
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Wed, 08 Apr 2015 23:07:55 -0700 |
parents | 166d744df0de |
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/* * Copyright (c) 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. * */ /** * @test * @bug 8055494 * @summary Add C2 x86 intrinsic for BigInteger::multiplyToLen() method * * @run main/othervm/timeout=600 -XX:-TieredCompilation -Xbatch * -XX:CompileCommand=exclude,TestMultiplyToLen::main * -XX:CompileCommand=option,TestMultiplyToLen::base_multiply,ccstr,DisableIntrinsic,_multiplyToLen * -XX:CompileCommand=option,java.math.BigInteger::multiply,ccstr,DisableIntrinsic,_multiplyToLen * -XX:CompileCommand=inline,java.math.BigInteger::multiply TestMultiplyToLen */ import java.util.Random; import java.math.*; public class TestMultiplyToLen { // Avoid intrinsic by preventing inlining multiply() and multiplyToLen(). public static BigInteger base_multiply(BigInteger op1, BigInteger op2) { return op1.multiply(op2); } // Generate multiplyToLen() intrinsic by inlining multiply(). public static BigInteger new_multiply(BigInteger op1, BigInteger op2) { return op1.multiply(op2); } public static boolean bytecompare(BigInteger b1, BigInteger b2) { byte[] data1 = b1.toByteArray(); byte[] data2 = b2.toByteArray(); if (data1.length != data2.length) return false; for (int i = 0; i < data1.length; i++) { if (data1[i] != data2[i]) return false; } return true; } public static String stringify(BigInteger b) { String strout= ""; byte [] data = b.toByteArray(); for (int i = 0; i < data.length; i++) { strout += (String.format("%02x",data[i]) + " "); } return strout; } public static void main(String args[]) throws Exception { BigInteger oldsum = new BigInteger("0"); BigInteger newsum = new BigInteger("0"); BigInteger b1, b2, oldres, newres; Random rand = new Random(); long seed = System.nanoTime(); Random rand1 = new Random(); long seed1 = System.nanoTime(); rand.setSeed(seed); rand1.setSeed(seed1); for (int j = 0; j < 1000000; j++) { int rand_int = rand1.nextInt(3136)+32; int rand_int1 = rand1.nextInt(3136)+32; b1 = new BigInteger(rand_int, rand); b2 = new BigInteger(rand_int1, rand); oldres = base_multiply(b1,b2); newres = new_multiply(b1,b2); oldsum = oldsum.add(oldres); newsum = newsum.add(newres); if (!bytecompare(oldres,newres)) { System.out.print("mismatch for:b1:" + stringify(b1) + " :b2:" + stringify(b2) + " :oldres:" + stringify(oldres) + " :newres:" + stringify(newres)); System.out.println(b1); System.out.println(b2); throw new Exception("Failed"); } } if (!bytecompare(oldsum,newsum)) { System.out.println("Failure: oldsum:" + stringify(oldsum) + " newsum:" + stringify(newsum)); throw new Exception("Failed"); } else { System.out.println("Success"); } } }