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test/compiler/rtm/locking/TestRTMAfterNonRTMDeopt.java@dbb05f6d93c4 (annotated)

test/compiler/rtm/locking/TestRTMAfterNonRTMDeopt.java

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

author

fzhinkin

date

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

changeset 6997

dbb05f6d93c4

parent 0

f90c822e73f8

child 7798

9041e030d11f

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

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 8031320
aoqi@0	28	* @summary Verify that if we use RTMDeopt, then deoptimization
aoqi@0	29	* caused by reason other then rtm_state_change will reset
aoqi@0	30	* method's RTM state. And if we don't use RTMDeopt, then
aoqi@0	31	* RTM state remain the same after such deoptimization.
aoqi@0	32	* @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
aoqi@0	33	* @build TestRTMAfterNonRTMDeopt
aoqi@0	34	* @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0	35	* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
aoqi@0	36	* -XX:+WhiteBoxAPI TestRTMAfterNonRTMDeopt
aoqi@0	37	*/
aoqi@0	38
aoqi@0	39	import java.util.List;
aoqi@0	40	import com.oracle.java.testlibrary.*;
aoqi@0	41	import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
aoqi@0	42	import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
aoqi@0	43	import rtm.*;
aoqi@0	44	import rtm.predicate.SupportedCPU;
aoqi@0	45	import rtm.predicate.SupportedVM;
aoqi@0	46	import sun.misc.Unsafe;
aoqi@0	47
aoqi@0	48	/**
aoqi@0	49	* To verify that with +UseRTMDeopt method's RTM state will be
aoqi@0	50	* changed to ProfileRTM on deoptimization unrelated to
aoqi@0	51	* rtm_state_change following sequence of events is used:
aoqi@0	52	* <pre>
aoqi@0	53	*
aoqi@0	54	* rtm state ^
aoqi@0	55	* |
aoqi@0	56	* UseRTM | ******| ******
aoqi@0	57	* | |
aoqi@0	58	* ProfileRTM |******| |*****|
aoqi@0	59	* | | | |
aoqi@0	60	* 0-------|-----|-----|---------------------&gt; time
aoqi@0	61	* | | \ force abort
aoqi@0	62	* | |
aoqi@0	63	* | \ force deoptimization
aoqi@0	64	* |
aoqi@0	65	* \ force xabort
aoqi@0	66	* </pre>
aoqi@0	67	* When xabort is forced by native method call method should
aoqi@0	68	* change it's state to UseRTM, because we use RTMAbortRatio=100
aoqi@0	69	* and low RTMLockingThreshold, so at this point actual abort
aoqi@0	70	* ratio will be below 100% and there should be enough lock
aoqi@0	71	* attempts to recompile method without RTM profiling.
aoqi@0	72	*/
aoqi@0	73	public class TestRTMAfterNonRTMDeopt extends CommandLineOptionTest {
aoqi@0	74	private static final int ABORT_THRESHOLD = 1000;
aoqi@0	75	private static final String RANGE_CHECK = "range_check";
aoqi@0	76
aoqi@0	77	private TestRTMAfterNonRTMDeopt() {
aoqi@0	78	super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
aoqi@0	79	}
aoqi@0	80
aoqi@0	81	@Override
aoqi@0	82	protected void runTestCases() throws Throwable {
aoqi@0	83	verifyRTMAfterDeopt(false, false);
aoqi@0	84	verifyRTMAfterDeopt(true, false);
aoqi@0	85
aoqi@0	86	verifyRTMAfterDeopt(false, true);
aoqi@0	87	verifyRTMAfterDeopt(true, true);
aoqi@0	88	}
aoqi@0	89
aoqi@0	90	private void verifyRTMAfterDeopt(boolean useStackLock,
aoqi@0	91	boolean useRTMDeopt) throws Throwable {
aoqi@0	92	CompilableTest test = new Test();
aoqi@0	93	String logFile = String.format("rtm_%s_stack_lock_%s_deopt.xml",
aoqi@0	94	(useStackLock ? "use" : "no"), (useRTMDeopt ? "use" : "no"));
aoqi@0	95
aoqi@0	96	OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
aoqi@0	97	logFile,
aoqi@0	98	test,
aoqi@0	99	"-XX:CompileThreshold=1",
aoqi@0	100	CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
aoqi@0	101	useStackLock),
aoqi@0	102	CommandLineOptionTest.prepareBooleanFlag("UseRTMDeopt",
aoqi@0	103	useRTMDeopt),
aoqi@0	104	"-XX:RTMAbortRatio=100",
aoqi@0	105	CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold",
aoqi@0	106	TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD),
aoqi@0	107	CommandLineOptionTest.prepareNumericFlag("RTMLockingThreshold",
aoqi@0	108	TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD / 2L),
aoqi@0	109	"-XX:RTMTotalCountIncrRate=1",
aoqi@0	110	"-XX:+PrintPreciseRTMLockingStatistics",
aoqi@0	111	Test.class.getName(),
aoqi@0	112	Boolean.toString(!useStackLock)
aoqi@0	113	);
aoqi@0	114
aoqi@0	115	outputAnalyzer.shouldHaveExitValue(0);
aoqi@0	116
aoqi@0	117	int traps = RTMTestBase.firedRTMStateChangeTraps(logFile);
aoqi@0	118
aoqi@0	119	if (useRTMDeopt) {
aoqi@0	120	Asserts.assertEQ(traps, 2, "Two uncommon traps with "
aoqi@0	121	+ "reason rtm_state_change should be fired.");
aoqi@0	122	} else {
aoqi@0	123	Asserts.assertEQ(traps, 0, "No uncommon traps with "
aoqi@0	124	+ "reason rtm_state_change should be fired.");
aoqi@0	125	}
aoqi@0	126
aoqi@0	127	int rangeCheckTraps = RTMTestBase.firedUncommonTraps(logFile,
aoqi@0	128	TestRTMAfterNonRTMDeopt.RANGE_CHECK);
aoqi@0	129
aoqi@0	130	Asserts.assertEQ(rangeCheckTraps, 1,
aoqi@0	131	"One range_check uncommon trap should be fired.");
aoqi@0	132
aoqi@0	133	List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
aoqi@0	134	test.getMethodWithLockName(), outputAnalyzer.getOutput());
aoqi@0	135
aoqi@0	136	int expectedStatEntries = (useRTMDeopt ? 4 : 2);
aoqi@0	137
aoqi@0	138	Asserts.assertEQ(statistics.size(), expectedStatEntries,
aoqi@0	139	String.format("VM output should contain %d RTM locking "
aoqi@0	140	+ "statistics entries.", expectedStatEntries));
aoqi@0	141	}
aoqi@0	142
aoqi@0	143	public static class Test implements CompilableTest {
aoqi@0	144	// Following field have to be static in order to avoid escape analysis.
aoqi@0	145	@SuppressWarnings("UnsuedDeclaration")
aoqi@0	146	private static int field = 0;
aoqi@0	147	private static final int ITERATIONS = 10000;
aoqi@0	148	private static final int RANGE_CHECK_AT = ITERATIONS / 2;
aoqi@0	149	private static final Unsafe UNSAFE = Utils.getUnsafe();
aoqi@0	150	private final Object monitor = new Object();
aoqi@0	151
aoqi@0	152	@Override
aoqi@0	153	public String getMethodWithLockName() {
aoqi@0	154	return this.getClass().getName() + "::forceAbort";
aoqi@0	155	}
aoqi@0	156
aoqi@0	157	@Override
aoqi@0	158	public String[] getMethodsToCompileNames() {
aoqi@0	159	return new String[] {
aoqi@0	160	getMethodWithLockName(),
aoqi@0	161	sun.misc.Unsafe.class.getName() + "::forceAbort"
aoqi@0	162	};
aoqi@0	163	}
aoqi@0	164
aoqi@0	165	public void forceAbort(int a[], boolean abort) {
aoqi@0	166	try {
aoqi@0	167	synchronized(monitor) {
aoqi@0	168	a[0]++;
aoqi@0	169	if (abort) {
aoqi@0	170	Test.field = Test.UNSAFE.addressSize();
aoqi@0	171	}
aoqi@0	172	}
aoqi@0	173	} catch (Throwable t) {
aoqi@0	174	// suppress any throwables
aoqi@0	175	}
aoqi@0	176	}
aoqi@0	177
aoqi@0	178	/**
aoqi@0	179	* Usage:
aoqi@0	180	* Test &lt;inflate monitor&gt;
aoqi@0	181	*/
aoqi@0	182	public static void main(String args[]) throws Throwable {
aoqi@0	183	Test t = new Test();
aoqi@0	184
aoqi@0	185	if (Boolean.valueOf(args[0])) {
aoqi@0	186	AbortProvoker.inflateMonitor(t.monitor);
aoqi@0	187	}
aoqi@0	188
aoqi@0	189	int tmp[] = new int[1];
aoqi@0	190
aoqi@0	191	for (int i = 0; i < Test.ITERATIONS; i++ ) {
aoqi@0	192	if (i == Test.RANGE_CHECK_AT) {
aoqi@0	193	t.forceAbort(new int[0], false);
aoqi@0	194	} else {
aoqi@0	195	boolean isThreshold
aoqi@0	196	= (i == TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD);
aoqi@0	197	boolean isThresholdPlusRange
aoqi@0	198	= (i == TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD
aoqi@0	199	+ Test.RANGE_CHECK_AT);
aoqi@0	200	t.forceAbort(tmp, isThreshold || isThresholdPlusRange);
aoqi@0	201	}
aoqi@0	202	}
aoqi@0	203	}
aoqi@0	204	}
aoqi@0	205
aoqi@0	206	public static void main(String args[]) throws Throwable {
aoqi@0	207	new TestRTMAfterNonRTMDeopt().test();
aoqi@0	208	}
aoqi@0	209	}
aoqi@0	210