Mon, 28 Jul 2014 15:06:38 -0700
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
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | /** |
aoqi@0 | 26 | * @test |
aoqi@0 | 27 | * @bug 8031321 |
aoqi@0 | 28 | * @summary Verify that results of computations are the same w/ |
aoqi@0 | 29 | * and w/o usage of intrinsic |
aoqi@0 | 30 | * @library /testlibrary /testlibrary/whitebox |
aoqi@0 | 31 | * @build TestLzcntL BMITestRunner Expr |
aoqi@0 | 32 | * @run main ClassFileInstaller sun.hotspot.WhiteBox |
aoqi@0 | 33 | * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
aoqi@0 | 34 | * -XX:+WhiteBoxAPI TestLzcntL |
aoqi@0 | 35 | */ |
aoqi@0 | 36 | |
aoqi@0 | 37 | import sun.hotspot.cpuinfo.CPUInfo; |
aoqi@0 | 38 | |
aoqi@0 | 39 | public class TestLzcntL { |
aoqi@0 | 40 | |
aoqi@0 | 41 | public static void main(String args[]) throws Throwable { |
aoqi@0 | 42 | if (!CPUInfo.hasFeature("lzcnt")) { |
aoqi@0 | 43 | System.out.println("CPU does not support lzcnt feature. " + |
aoqi@0 | 44 | "Test skipped."); |
aoqi@0 | 45 | return; |
aoqi@0 | 46 | } |
aoqi@0 | 47 | |
aoqi@0 | 48 | BMITestRunner.runTests(LzcntLExpr.class, args, |
aoqi@0 | 49 | "-XX:+UseCountLeadingZerosInstruction"); |
aoqi@0 | 50 | } |
aoqi@0 | 51 | |
aoqi@0 | 52 | public static class LzcntLExpr extends Expr.BitCountingLongExpr { |
aoqi@0 | 53 | |
aoqi@0 | 54 | public long longExpr(long src) { |
aoqi@0 | 55 | return Long.numberOfLeadingZeros(src); |
aoqi@0 | 56 | } |
aoqi@0 | 57 | |
aoqi@0 | 58 | } |
aoqi@0 | 59 | |
aoqi@0 | 60 | } |