Wed, 09 Mar 2016 19:51:23 +0300
8151522: Disable 8130150 and 8081778 intrinsics by default
Reviewed-by: kvn
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
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23 */
25 /**
26 * @test
27 * @bug 8081778
28 * @summary Add C2 x86 intrinsic for BigInteger::squareToLen() method
29 *
30 * @run main/othervm/timeout=600 -XX:-TieredCompilation -Xbatch
31 * -XX:+UseSquareToLenIntrinsic
32 * -XX:CompileCommand=exclude,TestSquareToLen::main
33 * -XX:CompileCommand=option,TestSquareToLen::base_multiply,ccstr,DisableIntrinsic,_squareToLen
34 * -XX:CompileCommand=option,java.math.BigInteger::multiply,ccstr,DisableIntrinsic,_squareToLen
35 * -XX:CompileCommand=option,java.math.BigInteger::square,ccstr,DisableIntrinsic,_squareToLen
36 * -XX:CompileCommand=option,java.math.BigInteger::squareToLen,ccstr,DisableIntrinsic,_squareToLen
37 * -XX:CompileCommand=inline,java.math.BigInteger::multiply
38 * -XX:CompileCommand=inline,java.math.BigInteger::square
39 * -XX:CompileCommand=inline,java.math.BigInteger::squareToLen TestSquareToLen
40 */
42 import java.util.Random;
43 import java.math.*;
45 public class TestSquareToLen {
47 // Avoid intrinsic by preventing inlining multiply() and squareToLen().
48 public static BigInteger base_multiply(BigInteger op1) {
49 return op1.multiply(op1);
50 }
52 // Generate squareToLen() intrinsic by inlining multiply().
53 public static BigInteger new_multiply(BigInteger op1) {
54 return op1.multiply(op1);
55 }
57 public static boolean bytecompare(BigInteger b1, BigInteger b2) {
58 byte[] data1 = b1.toByteArray();
59 byte[] data2 = b2.toByteArray();
60 if (data1.length != data2.length)
61 return false;
62 for (int i = 0; i < data1.length; i++) {
63 if (data1[i] != data2[i])
64 return false;
65 }
66 return true;
67 }
69 public static String stringify(BigInteger b) {
70 String strout= "";
71 byte [] data = b.toByteArray();
72 for (int i = 0; i < data.length; i++) {
73 strout += (String.format("%02x",data[i]) + " ");
74 }
75 return strout;
76 }
78 public static void main(String args[]) throws Exception {
80 BigInteger oldsum = new BigInteger("0");
81 BigInteger newsum = new BigInteger("0");
83 BigInteger b1, b2, oldres, newres;
85 Random rand = new Random();
86 long seed = System.nanoTime();
87 Random rand1 = new Random();
88 long seed1 = System.nanoTime();
89 rand.setSeed(seed);
90 rand1.setSeed(seed1);
92 for (int j = 0; j < 100000; j++) {
93 int rand_int = rand1.nextInt(3136)+32;
94 b1 = new BigInteger(rand_int, rand);
96 oldres = base_multiply(b1);
97 newres = new_multiply(b1);
99 oldsum = oldsum.add(oldres);
100 newsum = newsum.add(newres);
102 if (!bytecompare(oldres,newres)) {
103 System.out.print("mismatch for:b1:" + stringify(b1) + " :oldres:" + stringify(oldres) + " :newres:" + stringify(newres));
104 System.out.println(b1);
105 throw new Exception("Failed");
106 }
107 }
108 if (!bytecompare(oldsum,newsum)) {
109 System.out.println("Failure: oldsum:" + stringify(oldsum) + " newsum:" + stringify(newsum));
110 throw new Exception("Failed");
111 } else {
112 System.out.println("Success");
113 }
114 }
115 }