Mercurial > hg > truffle
view test/compiler/arguments/TestUseCountTrailingZerosInstructionOnUnsupportedCPU.java @ 20228:f72d8917322a
8050978: Fix bad field access check in C1 and C2
Summary: JCK8 test vm/constantpool/accessControl/accessControl004/accessControl00402m3/accessControl00402m3.html fails with -Xbatch -Xcomp due to bad field access check in C1 and C2. Fix: In ciField::ciField(), just before the canonical holder is stored into the _holder variable (and which is used by ciField::will_link()) perform an additional access check with the holder declared in the class file. If this check fails, store the declared holder instead and ciField::will_link() will bail out compilation for this field later on. Then, the interpreter will throw an PrivilegedAccessException at runtime.
Reviewed-by: kvn, vlivanov
Contributed-by: andreas.schoesser@sap.com
author | goetz |
---|---|
date | Fri, 18 Jul 2014 09:04:01 +0200 |
parents | 3829d0343db0 |
children |
line wrap: on
line source
/* * Copyright (c) 2014, 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 8031321 * @summary Verify processing of UseCountTrailingZerosInstruction option * on CPU without TZCNT instuction (BMI1 feature) support. * @library /testlibrary /testlibrary/whitebox * @build TestUseCountTrailingZerosInstructionOnUnsupportedCPU * BMIUnsupportedCPUTest * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions * -XX:+WhiteBoxAPI * TestUseCountTrailingZerosInstructionOnUnsupportedCPU */ import sun.hotspot.cpuinfo.CPUInfo; import com.oracle.java.testlibrary.*; import com.oracle.java.testlibrary.cli.*; public class TestUseCountTrailingZerosInstructionOnUnsupportedCPU extends BMIUnsupportedCPUTest { public TestUseCountTrailingZerosInstructionOnUnsupportedCPU() { super("UseCountTrailingZerosInstruction", TZCNT_WARNING, "bmi1"); } @Override public void unsupportedX86CPUTestCases() throws Throwable { super.unsupportedX86CPUTestCases(); // verify that option will not be turned on during // UseBMI1Instuctions processing CommandLineOptionTest. verifyOptionValue("UseCountTrailingZerosInstruction", "false", "-XX:+UseBMI1Instructions"); CommandLineOptionTest. verifyOptionValue("UseCountTrailingZerosInstruction", "false", "-XX:+UseCountTrailingZerosInstruction", "-XX:+UseBMI1Instructions"); } public static void main(String args[]) throws Throwable { new TestUseCountTrailingZerosInstructionOnUnsupportedCPU().test(); } }