jdk8-mips64-public/hotspot: test/compiler/5057225/Test5057225.java@dbb05f6d93c4 (annotated)

test/compiler/5057225/Test5057225.java@dbb05f6d93c4 (annotated)

test/compiler/5057225/Test5057225.java

Mon, 28 Jul 2014 15:06:38 -0700

author: fzhinkin
date: Mon, 28 Jul 2014 15:06:38 -0700
changeset 6997: dbb05f6d93c4
parent 1907: c18cbe5936b8
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

 /*
  * Copyright (c) 2009, 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 5057225
  * @summary Remove useless I2L conversions
  *
  * @run main/othervm -Xcomp -XX:CompileOnly=Test5057225.doload Test5057225
  */
 import java.net.URLClassLoader;
 public class Test5057225 {
     static byte[]  ba = new byte[]  { -1 };
     static short[] sa = new short[] { -1 };
     static int[]   ia = new int[]   { -1 };
     static final long[] BYTE_MASKS = {
 x0FL,
 x7FL,  // 7-bit
 xFFL,
     };
     static final long[] SHORT_MASKS = {
 x000FL,
 x007FL,  // 7-bit
 x00FFL,
 x0FFFL,
 x3FFFL,  // 14-bit
 x7FFFL,  // 15-bit
 xFFFFL,
     };
     static final long[] INT_MASKS = {
 x0000000FL,
 x0000007FL,  // 7-bit
 x000000FFL,
 x00000FFFL,
 x00003FFFL,  // 14-bit
 x00007FFFL,  // 15-bit
 x0000FFFFL,
 x00FFFFFFL,
 x7FFFFFFFL,  // 31-bit
 xFFFFFFFFL,
     };
     public static void main(String[] args) throws Exception {
         for (int i = 0; i < BYTE_MASKS.length; i++) {
             System.setProperty("value", "" + BYTE_MASKS[i]);
             loadAndRunClass("Test5057225$loadUB2L");
         }
         for (int i = 0; i < SHORT_MASKS.length; i++) {
             System.setProperty("value", "" + SHORT_MASKS[i]);
             loadAndRunClass("Test5057225$loadUS2L");
         }
         for (int i = 0; i < INT_MASKS.length; i++) {
             System.setProperty("value", "" + INT_MASKS[i]);
             loadAndRunClass("Test5057225$loadUI2L");
         }
     }
     static void check(long result, long expected) {
         if (result != expected)
             throw new InternalError(result + " != " + expected);
     }
     static void loadAndRunClass(String classname) throws Exception {
         Class cl = Class.forName(classname);
         URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
         ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
         Class c = loader.loadClass(classname);
         Runnable r = (Runnable) c.newInstance();
         r.run();
     }
     public static class loadUB2L implements Runnable {
         static final long MASK;
         static {
             long value = 0;
             try {
                 value = Long.decode(System.getProperty("value"));
             } catch (Throwable e) {}
             MASK = value;
         }
         public void run() { check(doload(ba), MASK); }
         static long doload(byte[] ba) { return ba[0] & MASK; }
     }
     public static class loadUS2L implements Runnable {
         static final long MASK;
         static {
             long value = 0;
             try {
                 value = Long.decode(System.getProperty("value"));
             } catch (Throwable e) {}
             MASK = value;
         }
         public void run() { check(doload(sa), MASK); }
         static long doload(short[] sa) { return sa[0] & MASK; }
     }
     public static class loadUI2L implements Runnable {
         static final long MASK;
         static {
             long value = 0;
             try {
                 value = Long.decode(System.getProperty("value"));
             } catch (Throwable e) {}
             MASK = value;
         }
         public void run() { check(doload(ia), MASK); }
         static long doload(int[] ia) { return ia[0] & MASK; }
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/5057225/Test5057225.java@dbb05f6d93c4 (annotated)

test/compiler/5057225/Test5057225.java