--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/rtm/locking/TestUseRTMForInflatedLocks.java Fri Apr 11 00:35:23 2014 +0400
@@ -0,0 +1,92 @@
+/*
+ * 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 rtm locking is used for inflated locks.
+ * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
+ * @build TestUseRTMForInflatedLocks
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
+ * -XX:+WhiteBoxAPI TestUseRTMForInflatedLocks
+ */
+
+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;
+
+/**
+ * Test verifies that RTM-based lock elision could be used for inflated locks
+ * by calling compiled method that use RTM-based lock elision and using
+ * manually inflated lock.
+ * Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times,
+ * so total locks count should be the same.
+ * This test could also be affected by retriable aborts, so -XX:RTMRetryCount=0
+ * is used. For more information abort that issue see
+ * {@link TestUseRTMAfterLockInflation}.
+ */
+public class TestUseRTMForInflatedLocks extends CommandLineOptionTest {
+ private TestUseRTMForInflatedLocks() {
+ super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
+ }
+
+ @Override
+ protected void runTestCases() throws Throwable {
+ AbortProvoker provoker = AbortType.XABORT.provoker();
+ RTMLockingStatistics lock;
+
+ OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
+ provoker,
+ "-XX:-UseRTMForStackLocks",
+ "-XX:RTMTotalCountIncrRate=1",
+ "-XX:RTMRetryCount=0",
+ "-XX:+PrintPreciseRTMLockingStatistics",
+ AbortProvoker.class.getName(),
+ AbortType.XABORT.toString());
+
+ outputAnalyzer.shouldHaveExitValue(0);
+
+ List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
+ provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
+
+ Asserts.assertEQ(statistics.size(), 1,
+ "VM output should contain exactly one rtm locking statistics "
+ + "entry for method " + provoker.getMethodWithLockName());
+
+ lock = statistics.get(0);
+ Asserts.assertEQ(lock.getTotalLocks(), AbortProvoker.DEFAULT_ITERATIONS,
+ "Total lock count should be greater or equal to "
+ + AbortProvoker.DEFAULT_ITERATIONS);
+ }
+
+ public static void main(String args[]) throws Throwable {
+ new TestUseRTMForInflatedLocks().test();
+ }
+}