--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/rtm/locking/TestRTMDeoptOnLowAbortRatio.java	Fri Apr 11 00:35:23 2014 +0400
@@ -0,0 +1,167 @@
+/*
+ * 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 &lt;inflate monitor&gt;
+         */
+        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();
+    }
+}