1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/intrinsics/squaretolen/TestSquareToLen.java Wed Feb 17 13:40:12 2016 +0300
1.3 @@ -0,0 +1,114 @@
1.4 +/*
1.5 + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +/**
1.29 + * @test
1.30 + * @bug 8081778
1.31 + * @summary Add C2 x86 intrinsic for BigInteger::squareToLen() method
1.32 + *
1.33 + * @run main/othervm/timeout=600 -XX:-TieredCompilation -Xbatch
1.34 + * -XX:CompileCommand=exclude,TestSquareToLen::main
1.35 + * -XX:CompileCommand=option,TestSquareToLen::base_multiply,ccstr,DisableIntrinsic,_squareToLen
1.36 + * -XX:CompileCommand=option,java.math.BigInteger::multiply,ccstr,DisableIntrinsic,_squareToLen
1.37 + * -XX:CompileCommand=option,java.math.BigInteger::square,ccstr,DisableIntrinsic,_squareToLen
1.38 + * -XX:CompileCommand=option,java.math.BigInteger::squareToLen,ccstr,DisableIntrinsic,_squareToLen
1.39 + * -XX:CompileCommand=inline,java.math.BigInteger::multiply
1.40 + * -XX:CompileCommand=inline,java.math.BigInteger::square
1.41 + * -XX:CompileCommand=inline,java.math.BigInteger::squareToLen TestSquareToLen
1.42 + */
1.43 +
1.44 +import java.util.Random;
1.45 +import java.math.*;
1.46 +
1.47 +public class TestSquareToLen {
1.48 +
1.49 + // Avoid intrinsic by preventing inlining multiply() and squareToLen().
1.50 + public static BigInteger base_multiply(BigInteger op1) {
1.51 + return op1.multiply(op1);
1.52 + }
1.53 +
1.54 + // Generate squareToLen() intrinsic by inlining multiply().
1.55 + public static BigInteger new_multiply(BigInteger op1) {
1.56 + return op1.multiply(op1);
1.57 + }
1.58 +
1.59 + public static boolean bytecompare(BigInteger b1, BigInteger b2) {
1.60 + byte[] data1 = b1.toByteArray();
1.61 + byte[] data2 = b2.toByteArray();
1.62 + if (data1.length != data2.length)
1.63 + return false;
1.64 + for (int i = 0; i < data1.length; i++) {
1.65 + if (data1[i] != data2[i])
1.66 + return false;
1.67 + }
1.68 + return true;
1.69 + }
1.70 +
1.71 + public static String stringify(BigInteger b) {
1.72 + String strout= "";
1.73 + byte [] data = b.toByteArray();
1.74 + for (int i = 0; i < data.length; i++) {
1.75 + strout += (String.format("%02x",data[i]) + " ");
1.76 + }
1.77 + return strout;
1.78 + }
1.79 +
1.80 + public static void main(String args[]) throws Exception {
1.81 +
1.82 + BigInteger oldsum = new BigInteger("0");
1.83 + BigInteger newsum = new BigInteger("0");
1.84 +
1.85 + BigInteger b1, b2, oldres, newres;
1.86 +
1.87 + Random rand = new Random();
1.88 + long seed = System.nanoTime();
1.89 + Random rand1 = new Random();
1.90 + long seed1 = System.nanoTime();
1.91 + rand.setSeed(seed);
1.92 + rand1.setSeed(seed1);
1.93 +
1.94 + for (int j = 0; j < 100000; j++) {
1.95 + int rand_int = rand1.nextInt(3136)+32;
1.96 + b1 = new BigInteger(rand_int, rand);
1.97 +
1.98 + oldres = base_multiply(b1);
1.99 + newres = new_multiply(b1);
1.100 +
1.101 + oldsum = oldsum.add(oldres);
1.102 + newsum = newsum.add(newres);
1.103 +
1.104 + if (!bytecompare(oldres,newres)) {
1.105 + System.out.print("mismatch for:b1:" + stringify(b1) + " :oldres:" + stringify(oldres) + " :newres:" + stringify(newres));
1.106 + System.out.println(b1);
1.107 + throw new Exception("Failed");
1.108 + }
1.109 + }
1.110 + if (!bytecompare(oldsum,newsum)) {
1.111 + System.out.println("Failure: oldsum:" + stringify(oldsum) + " newsum:" + stringify(newsum));
1.112 + throw new Exception("Failed");
1.113 + } else {
1.114 + System.out.println("Success");
1.115 + }
1.116 + }
1.117 +}
