Sat, 07 Nov 2020 10:30:02 +0800
Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f
1 /*
2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 /**
26 * @test
27 * @bug 8081778
28 * @summary Add C2 x86 intrinsic for BigInteger::mulAdd() method
29 *
30 * @run main/othervm/timeout=600 -XX:-TieredCompilation -Xbatch
31 * -XX:+IgnoreUnrecognizedVMOptions -XX:-UseSquareToLenIntrinsic -XX:-UseMultiplyToLenIntrinsic
32 * -XX:+UseMulAddIntrinsic
33 * -XX:CompileCommand=dontinline,TestMulAdd::main
34 * -XX:CompileCommand=option,TestMulAdd::base_multiply,ccstr,DisableIntrinsic,_mulAdd
35 * -XX:CompileCommand=option,java.math.BigInteger::multiply,ccstr,DisableIntrinsic,_mulAdd
36 * -XX:CompileCommand=option,java.math.BigInteger::square,ccstr,DisableIntrinsic,_mulAdd
37 * -XX:CompileCommand=option,java.math.BigInteger::squareToLen,ccstr,DisableIntrinsic,_mulAdd
38 * -XX:CompileCommand=option,java.math.BigInteger::mulAdd,ccstr,DisableIntrinsic,_mulAdd
39 * -XX:CompileCommand=inline,java.math.BigInteger::multiply
40 * -XX:CompileCommand=inline,java.math.BigInteger::square
41 * -XX:CompileCommand=inline,java.math.BigInteger::squareToLen
42 * -XX:CompileCommand=inline,java.math.BigInteger::mulAdd TestMulAdd
43 */
45 import java.util.Random;
46 import java.math.*;
48 public class TestMulAdd {
50 // Avoid intrinsic by preventing inlining multiply() and mulAdd().
51 public static BigInteger base_multiply(BigInteger op1) {
52 return op1.multiply(op1);
53 }
55 // Generate mulAdd() intrinsic by inlining multiply().
56 public static BigInteger new_multiply(BigInteger op1) {
57 return op1.multiply(op1);
58 }
60 public static boolean bytecompare(BigInteger b1, BigInteger b2) {
61 byte[] data1 = b1.toByteArray();
62 byte[] data2 = b2.toByteArray();
63 if (data1.length != data2.length)
64 return false;
65 for (int i = 0; i < data1.length; i++) {
66 if (data1[i] != data2[i])
67 return false;
68 }
69 return true;
70 }
72 public static String stringify(BigInteger b) {
73 String strout= "";
74 byte [] data = b.toByteArray();
75 for (int i = 0; i < data.length; i++) {
76 strout += (String.format("%02x",data[i]) + " ");
77 }
78 return strout;
79 }
81 public static void main(String args[]) throws Exception {
83 BigInteger oldsum = new BigInteger("0");
84 BigInteger newsum = new BigInteger("0");
86 BigInteger b1, b2, oldres, newres;
88 Random rand = new Random();
89 long seed = System.nanoTime();
90 Random rand1 = new Random();
91 long seed1 = System.nanoTime();
92 rand.setSeed(seed);
93 rand1.setSeed(seed1);
95 for (int j = 0; j < 100000; j++) {
96 int rand_int = rand1.nextInt(3136)+32;
97 b1 = new BigInteger(rand_int, rand);
99 oldres = base_multiply(b1);
100 newres = new_multiply(b1);
102 oldsum = oldsum.add(oldres);
103 newsum = newsum.add(newres);
105 if (!bytecompare(oldres,newres)) {
106 System.out.print("mismatch for:b1:" + stringify(b1) + " :oldres:" + stringify(oldres) + " :newres:" + stringify(newres));
107 System.out.println(b1);
108 throw new Exception("Failed");
109 }
110 }
111 if (!bytecompare(oldsum,newsum)) {
112 System.out.println("Failure: oldsum:" + stringify(oldsum) + " newsum:" + stringify(newsum));
113 throw new Exception("Failed");
114 } else {
115 System.out.println("Success");
116 }
117 }
118 }