1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/8005419/Test8005419.java Tue Jan 08 11:30:51 2013 -0800
1.3 @@ -0,0 +1,120 @@
1.4 +/*
1.5 + * Copyright (c) 2012, 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 + * @test
1.29 + * @bug 8005419
1.30 + * @summary Improve intrinsics code performance on x86 by using AVX2
1.31 + * @run main/othervm -Xbatch -Xmx64m Test8005419
1.32 + *
1.33 + */
1.34 +
1.35 +public class Test8005419 {
1.36 + public static int SIZE = 64;
1.37 +
1.38 + public static void main(String[] args) {
1.39 + char[] a = new char[SIZE];
1.40 + char[] b = new char[SIZE];
1.41 +
1.42 + for (int i = 16; i < SIZE; i++) {
1.43 + a[i] = (char)i;
1.44 + b[i] = (char)i;
1.45 + }
1.46 + String s1 = new String(a);
1.47 + String s2 = new String(b);
1.48 +
1.49 + // Warm up
1.50 + boolean failed = false;
1.51 + int result = 0;
1.52 + for (int i = 0; i < 10000; i++) {
1.53 + result += test(s1, s2);
1.54 + }
1.55 + for (int i = 0; i < 10000; i++) {
1.56 + result += test(s1, s2);
1.57 + }
1.58 + for (int i = 0; i < 10000; i++) {
1.59 + result += test(s1, s2);
1.60 + }
1.61 + if (result != 0) failed = true;
1.62 +
1.63 + System.out.println("Start testing");
1.64 + // Compare same string
1.65 + result = test(s1, s1);
1.66 + if (result != 0) {
1.67 + failed = true;
1.68 + System.out.println("Failed same: result = " + result + ", expected 0");
1.69 + }
1.70 + // Compare equal strings
1.71 + for (int i = 1; i <= SIZE; i++) {
1.72 + s1 = new String(a, 0, i);
1.73 + s2 = new String(b, 0, i);
1.74 + result = test(s1, s2);
1.75 + if (result != 0) {
1.76 + failed = true;
1.77 + System.out.println("Failed equals s1[" + i + "], s2[" + i + "]: result = " + result + ", expected 0");
1.78 + }
1.79 + }
1.80 + // Compare equal strings but different sizes
1.81 + for (int i = 1; i <= SIZE; i++) {
1.82 + s1 = new String(a, 0, i);
1.83 + for (int j = 1; j <= SIZE; j++) {
1.84 + s2 = new String(b, 0, j);
1.85 + result = test(s1, s2);
1.86 + if (result != (i-j)) {
1.87 + failed = true;
1.88 + System.out.println("Failed diff size s1[" + i + "], s2[" + j + "]: result = " + result + ", expected " + (i-j));
1.89 + }
1.90 + }
1.91 + }
1.92 + // Compare strings with one char different and different sizes
1.93 + for (int i = 1; i <= SIZE; i++) {
1.94 + s1 = new String(a, 0, i);
1.95 + for (int j = 0; j < i; j++) {
1.96 + b[j] -= 3; // change char
1.97 + s2 = new String(b, 0, i);
1.98 + result = test(s1, s2);
1.99 + int chdiff = a[j] - b[j];
1.100 + if (result != chdiff) {
1.101 + failed = true;
1.102 + System.out.println("Failed diff char s1[" + i + "], s2[" + i + "]: result = " + result + ", expected " + chdiff);
1.103 + }
1.104 + result = test(s2, s1);
1.105 + chdiff = b[j] - a[j];
1.106 + if (result != chdiff) {
1.107 + failed = true;
1.108 + System.out.println("Failed diff char s2[" + i + "], s1[" + i + "]: result = " + result + ", expected " + chdiff);
1.109 + }
1.110 + b[j] += 3; // restore
1.111 + }
1.112 + }
1.113 + if (failed) {
1.114 + System.out.println("FAILED");
1.115 + System.exit(97);
1.116 + }
1.117 + System.out.println("PASSED");
1.118 + }
1.119 +
1.120 + private static int test(String str1, String str2) {
1.121 + return str1.compareTo(str2);
1.122 + }
1.123 +}
