jdk8-mips64-public/hotspot: test/compiler/6942326/Test.java@f90c822e73f8 (annotated)

test/compiler/6942326/Test.java@f90c822e73f8 (annotated)

test/compiler/6942326/Test.java

Wed, 27 Apr 2016 01:25:04 +0800

author: aoqi
date: Wed, 27 Apr 2016 01:25:04 +0800
changeset 0: f90c822e73f8
permissions: -rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

 /*
  * Copyright (c) 2011, 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 6942326
  * @summary x86 code in string_indexof() could read beyond reserved heap space
  *
  * @run main/othervm/timeout=300 -Xmx32m -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:CompileCommand=exclude,Test,main -XX:CompileCommand=exclude,Test,test_varsub_indexof -XX:CompileCommand=exclude,Test,test_varstr_indexof -XX:CompileCommand=exclude,Test,test_missub_indexof -XX:CompileCommand=exclude,Test,test_consub_indexof -XX:CompileCommand=exclude,Test,test_conmis_indexof -XX:CompileCommand=exclude,Test,test_subcon Test
  *
  */
 public class Test {
     static String[] strings = new String[1024];
     private static final int ITERATIONS = 100000;
     public static void main(String[] args) {
         long start_total = System.currentTimeMillis();
         // search variable size substring in string (33 chars).
         String a = " 1111111111111xx1111111111111xx11y"; // +1 to execute a.substring(1) first
         String b =  "1111111111111xx1111111111111xx11y";
         test_varsub_indexof(a, b);
         // search variable size substring in string (32 chars).
         a = " 1111111111111xx1111111111111xx1y";
         b =  "1111111111111xx1111111111111xx1y";
         test_varsub_indexof(a, b);
         // search variable size substring in string (17 chars).
         a = " 1111111111111xx1y";
         b =  "1111111111111xx1y";
         test_varsub_indexof(a, b);
         // search variable size substring in string (16 chars).
         a = " 111111111111xx1y";
         b =  "111111111111xx1y";
         test_varsub_indexof(a, b);
         // search variable size substring in string (8 chars).
         a = " 1111xx1y";
         b =  "1111xx1y";
         test_varsub_indexof(a, b);
         // search variable size substring in string (7 chars).
         a = " 111xx1y";
         b =  "111xx1y";
         test_varsub_indexof(a, b);
         // search substring (17 chars) in variable size string.
         a =                 "1111111111111xx1x";
         b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
         test_varstr_indexof(a, b);
         // search substring (16 chars) in variable size string.
         a =                  "111111111111xx1x";
         b = " 1111111111111xx1111111111111xx1x";
         test_varstr_indexof(a, b);
         // search substring (9 chars) in variable size string.
         a =                         "11111xx1x";
         b = " 1111111111111xx1111111111111xx1x";
         test_varstr_indexof(a, b);
         // search substring (8 chars) in variable size string.
         a =                          "1111xx1x";
         b = " 1111111111111xx1111111111111xx1x";
         test_varstr_indexof(a, b);
         // search substring (4 chars) in variable size string.
         a =                              "xx1x";
         b = " 1111111111111xx1111111111111xx1x";
         test_varstr_indexof(a, b);
         // search substring (3 chars) in variable size string.
         a =                               "x1x";
         b = " 1111111111111xx1111111111111xx1x";
         test_varstr_indexof(a, b);
         // search substring (2 chars) in variable size string.
         a =                                "1y";
         b = " 1111111111111xx1111111111111xx1y";
         test_varstr_indexof(a, b);
         // search non matching variable size substring in string (33 chars).
         a = " 1111111111111xx1111111111111xx11z"; // +1 to execute a.substring(1) first
         b =  "1111111111111xx1111111111111xx11y";
         test_missub_indexof(a, b);
         // search non matching variable size substring in string (32 chars).
         a = " 1111111111111xx1111111111111xx1z";
         b =  "1111111111111xx1111111111111xx1y";
         test_missub_indexof(a, b);
         // search non matching variable size substring in string (17 chars).
         a = " 1111111111111xx1z";
         b =  "1111111111111xx1y";
         test_missub_indexof(a, b);
         // search non matching variable size substring in string (16 chars).
         a = " 111111111111xx1z";
         b =  "111111111111xx1y";
         test_missub_indexof(a, b);
         // search non matching variable size substring in string (8 chars).
         a = " 1111xx1z";
         b =  "1111xx1y";
         test_missub_indexof(a, b);
         // search non matching variable size substring in string (7 chars).
         a = " 111xx1z";
         b =  "111xx1y";
         test_missub_indexof(a, b);
         // Testing constant substring search in variable size string.
         // search constant substring (17 chars).
         b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
         TestCon tc = new TestCon17();
         test_consub_indexof(tc, b);
         // search constant substring (16 chars).
         b = " 1111111111111xx1111111111111xx1x";
         tc = new TestCon16();
         test_consub_indexof(tc, b);
         // search constant substring (9 chars).
         b = " 1111111111111xx1111111111111xx1x";
         tc = new TestCon9();
         test_consub_indexof(tc, b);
         // search constant substring (8 chars).
         b = " 1111111111111xx1111111111111xx1x";
         tc = new TestCon8();
         test_consub_indexof(tc, b);
         // search constant substring (4 chars).
         b = " 1111111111111xx1111111111111xx1x";
         tc = new TestCon4();
         test_consub_indexof(tc, b);
         // search constant substring (3 chars).
         b = " 1111111111111xx1111111111111xx1x";
         tc = new TestCon3();
         test_consub_indexof(tc, b);
         // search constant substring (2 chars).
         b = " 1111111111111xx1111111111111xx1y";
         tc = new TestCon2();
         test_consub_indexof(tc, b);
         // search constant substring (1 chars).
         b = " 1111111111111xx1111111111111xx1y";
         tc = new TestCon1();
         test_consub_indexof(tc, b);
         // search non matching constant substring (17 chars).
         b = " 1111111111111xx1111111111111xx1z"; // +1 to execute b.substring(1) first
         tc = new TestCon17();
         test_conmis_indexof(tc, b);
         // search non matching constant substring (16 chars).
         b = " 1111111111111xx1111111111111xx1z";
         tc = new TestCon16();
         test_conmis_indexof(tc, b);
         // search non matching constant substring (9 chars).
         b = " 1111111111111xx1111111111111xx1z";
         tc = new TestCon9();
         test_conmis_indexof(tc, b);
         // search non matching constant substring (8 chars).
         b = " 1111111111111xx1111111111111xx1z";
         tc = new TestCon8();
         test_conmis_indexof(tc, b);
         // search non matching constant substring (4 chars).
         b = " 1111111111111xx1111111111111xx1z";
         tc = new TestCon4();
         test_conmis_indexof(tc, b);
         // search non matching constant substring (3 chars).
         b = " 1111111111111xx1111111111111xx1z";
         tc = new TestCon3();
         test_conmis_indexof(tc, b);
         // search non matching constant substring (2 chars).
         b = " 1111111111111xx1111111111111xx1z";
         tc = new TestCon2();
         test_conmis_indexof(tc, b);
         // search non matching constant substring (1 chars).
         b = " 1111111111111xx1111111111111xx1z";
         tc = new TestCon1();
         test_conmis_indexof(tc, b);
         long end_total = System.currentTimeMillis();
         System.out.println("End run time: " + (end_total - start_total));
     }
     public static long test_init(String a, String b) {
         for (int i = 0; i < 512; i++) {
             strings[i * 2] = new String(b.toCharArray());
             strings[i * 2 + 1] = new String(a.toCharArray());
         }
         System.out.print(a.length() + " " + b.length() + " ");
         return System.currentTimeMillis();
     }
     public static void test_end(String a, String b, int v, int expected, long start) {
         long end = System.currentTimeMillis();
         int res = (v/ITERATIONS);
         System.out.print(" " + res);
         System.out.println(" time:" + (end - start));
         if (res != expected) {
             System.out.println("wrong indexOf result: " + res + ", expected " + expected);
             System.out.println("\"" + b + "\".indexOf(\"" + a + "\")");
             System.exit(97);
         }
     }
     public static int test_subvar() {
         int s = 0;
         int v = 0;
         for (int i = 0; i < ITERATIONS; i++) {
             v += strings[s].indexOf(strings[s + 1]);
             s += 2;
             if (s >= strings.length) s = 0;
         }
         return v;
     }
     public static void test_varsub_indexof(String a, String b) {
         System.out.println("Start search variable size substring in string (" + b.length() + " chars)");
         long start_it = System.currentTimeMillis();
         int limit = 1; // last a.length() == 1
         while (a.length() > limit) {
             a = a.substring(1);
             long start = test_init(a, b);
             int v = test_subvar();
             test_end(a, b, v, (b.length() - a.length()), start);
         }
         long end_it = System.currentTimeMillis();
         System.out.println("End search variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
     }
     public static void test_varstr_indexof(String a, String b) {
         System.out.println("Start search substring (" + a.length() + " chars) in variable size string");
         long start_it = System.currentTimeMillis();
         int limit = a.length();
         while (b.length() > limit) {
             b = b.substring(1);
             long start = test_init(a, b);
             int v = test_subvar();
             test_end(a, b, v, (b.length() - a.length()), start);
         }
         long end_it = System.currentTimeMillis();
         System.out.println("End search substring (" + a.length() + " chars) in variable size string, time: " + (end_it - start_it));
     }
     public static void test_missub_indexof(String a, String b) {
         System.out.println("Start search non matching variable size substring in string (" + b.length() + " chars)");
         long start_it = System.currentTimeMillis();
         int limit = 1; // last a.length() == 1
         while (a.length() > limit) {
             a = a.substring(1);
             long start = test_init(a, b);
             int v = test_subvar();
             test_end(a, b, v, (-1), start);
         }
         long end_it = System.currentTimeMillis();
         System.out.println("End search non matching variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
     }
     public static void test_consub_indexof(TestCon tc, String b) {
         System.out.println("Start search constant substring (" + tc.constr().length() + " chars)");
         long start_it = System.currentTimeMillis();
         int limit = tc.constr().length();
         while (b.length() > limit) {
             b = b.substring(1);
             long start = test_init(tc.constr(), b);
             int v = test_subcon(tc);
             test_end(tc.constr(), b, v, (b.length() - tc.constr().length()), start);
         }
         long end_it = System.currentTimeMillis();
         System.out.println("End search constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
     }
     public static void test_conmis_indexof(TestCon tc, String b) {
         System.out.println("Start search non matching constant substring (" + tc.constr().length() + " chars)");
         long start_it = System.currentTimeMillis();
         int limit = tc.constr().length();
         while (b.length() > limit) {
             b = b.substring(1);
             long start = test_init(tc.constr(), b);
             int v = test_subcon(tc);
             test_end(tc.constr(), b, v, (-1), start);
         }
         long end_it = System.currentTimeMillis();
         System.out.println("End search non matching constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
     }
     public static int test_subcon(TestCon tc) {
         int s = 0;
         int v = 0;
         for (int i = 0; i < ITERATIONS; i++) {
             v += tc.indexOf(strings[s]);
             s += 2;
             if (s >= strings.length) s = 0;
         }
         return v;
     }
     private interface TestCon {
         public String constr();
         public int indexOf(String str);
     }
     // search constant substring (17 chars).
     private final static class TestCon17 implements TestCon {
         private static final String constr = "1111111111111xx1x";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
     // search constant substring (16 chars).
     private final static class TestCon16 implements TestCon {
         private static final String constr = "111111111111xx1x";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
     // search constant substring (9 chars).
     private final static class TestCon9 implements TestCon {
         private static final String constr = "11111xx1x";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
     // search constant substring (8 chars).
     private final static class TestCon8 implements TestCon {
         private static final String constr = "1111xx1x";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
     // search constant substring (4 chars).
     private final static class TestCon4 implements TestCon {
         private static final String constr = "xx1x";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
     // search constant substring (3 chars).
     private final static class TestCon3 implements TestCon {
         private static final String constr = "x1x";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
     // search constant substring (2 chars).
     private final static class TestCon2 implements TestCon {
         private static final String constr = "1y";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
     // search constant substring (1 chars).
     private final static class TestCon1 implements TestCon {
         private static final String constr = "y";
         public String constr() { return constr; }
         public int indexOf(String str) { return str.indexOf(constr); }
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/6942326/Test.java@f90c822e73f8 (annotated)

test/compiler/6942326/Test.java