Mercurial > hg > graal-compiler
view test/compiler/rtm/locking/TestRTMDeoptOnLowAbortRatio.java @ 21485:b6ebdfc9f611
[SPARC] Use SPARCAddressValue in NullCheckOp
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Fri, 22 May 2015 11:29:13 +0200 |
parents | ba8268c23fa2 |
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/* * 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 8031320 * @summary Verify that on low abort ratio method will be recompiled. * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary * @build TestRTMDeoptOnLowAbortRatio * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions * -XX:+WhiteBoxAPI TestRTMDeoptOnLowAbortRatio */ import java.util.List; import com.oracle.java.testlibrary.*; import com.oracle.java.testlibrary.cli.CommandLineOptionTest; import com.oracle.java.testlibrary.cli.predicate.AndPredicate; import rtm.*; import rtm.predicate.SupportedCPU; import rtm.predicate.SupportedVM; import sun.misc.Unsafe; /** * Test verifies that low abort ratio method will be deoptimized with * <i>rtm_state_change</i> reason and will continue to use RTM-based lock * elision after that. * This test make asserts on total locks count done by compiled method, * so in order to avoid issue with retriable locks -XX:RTMRetryCount=0 is used. * For more details on that issue see {@link TestUseRTMAfterLockInflation}. */ public class TestRTMDeoptOnLowAbortRatio extends CommandLineOptionTest { private static final long LOCKING_THRESHOLD = 100L; private TestRTMDeoptOnLowAbortRatio() { super(new AndPredicate(new SupportedCPU(), new SupportedVM())); } @Override protected void runTestCases() throws Throwable { verifyRTMDeopt(false); verifyRTMDeopt(true); } private void verifyRTMDeopt(boolean useStackLock) throws Throwable { CompilableTest test = new Test(); String logFileName = String.format("rtm_deopt_%s_stack_lock.xml", useStackLock ? "use" : "no"); OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( logFileName, test, "-XX:+UseRTMDeopt", CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", useStackLock), CommandLineOptionTest.prepareNumericFlag("RTMLockingThreshold", TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD), "-XX:RTMAbortThreshold=1", "-XX:RTMAbortRatio=100", "-XX:CompileThreshold=1", "-XX:RTMRetryCount=0", "-XX:RTMTotalCountIncrRate=1", "-XX:+PrintPreciseRTMLockingStatistics", Test.class.getName(), Boolean.toString(!useStackLock) ); outputAnalyzer.shouldHaveExitValue(0); int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName); Asserts.assertEQ(firedTraps, 1, "Expected to get only one deoptimization due to rtm" + " state change"); List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( test.getMethodWithLockName(), outputAnalyzer.getOutput()); Asserts.assertEQ(statistics.size(), 2, "VM output should contain two RTM locking " + "statistics entries for method " + test.getMethodWithLockName()); RTMLockingStatistics statisticsBeforeDeopt = null; for (RTMLockingStatistics s : statistics) { if (s.getTotalLocks() == TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD + 1L) { Asserts.assertNull(statisticsBeforeDeopt, "Only one abort was expected during test run"); statisticsBeforeDeopt = s; } } Asserts.assertNotNull(statisticsBeforeDeopt, "After LockThreshold was reached, method should be recompiled " + "with rtm lock eliding."); } public static class Test implements CompilableTest { private static final Unsafe UNSAFE = Utils.getUnsafe(); private final Object monitor = new Object(); @Override public String getMethodWithLockName() { return this.getClass().getName() + "::forceAbort"; } @Override public String[] getMethodsToCompileNames() { return new String[] { getMethodWithLockName(), sun.misc.Unsafe.class.getName() + "::addressSize" }; } public void forceAbort(boolean abort) { synchronized(monitor) { if (abort) { Test.UNSAFE.addressSize(); } } } /** * Usage: * Test <inflate monitor> */ public static void main(String args[]) throws Throwable { Asserts.assertGTE(args.length, 1, "One argument required."); Test t = new Test(); if (Boolean.valueOf(args[0])) { AbortProvoker.inflateMonitor(t.monitor); } for (int i = 0; i < AbortProvoker.DEFAULT_ITERATIONS; i++) { t.forceAbort( i == TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD); } } } public static void main(String args[]) throws Throwable { new TestRTMDeoptOnLowAbortRatio().test(); } }