--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/CooperativePhaseTest.java	2016-12-09 00:47:31.721130088 -0800
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+package org.graalvm.compiler.core.test;
+
+import org.junit.Test;
+
+import org.graalvm.compiler.common.RetryableBailoutException;
+import org.graalvm.compiler.core.common.util.CompilationAlarm;
+import org.graalvm.compiler.debug.GraalError;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
+import org.graalvm.compiler.options.OptionValue;
+import org.graalvm.compiler.options.OptionValue.OverrideScope;
+import org.graalvm.compiler.phases.Phase;
+
+public class CooperativePhaseTest extends GraalCompilerTest {
+
+    public static void snippet() {
+        // dummy snippet
+    }
+
+    private static class CooperativePhase extends Phase {
+
+        @Override
+        protected void run(StructuredGraph graph) {
+            while (true) {
+                sleep(200);
+                if (CompilationAlarm.hasExpired()) {
+                    return;
+                }
+            }
+        }
+
+    }
+
+    private static class UnCooperativePhase extends Phase {
+
+        @Override
+        protected void run(StructuredGraph graph) {
+            while (true) {
+                sleep(200);
+                if (CompilationAlarm.hasExpired()) {
+                    throw new RetryableBailoutException("Expiring...");
+                }
+            }
+        }
+
+    }
+
+    private static class ParlyCooperativePhase extends Phase {
+
+        @Override
+        protected void run(StructuredGraph graph) {
+            for (int i = 0; i < 10; i++) {
+                sleep(200);
+                if (CompilationAlarm.hasExpired()) {
+                    throw new RuntimeException("Phase must not exit in the timeout path");
+                }
+            }
+        }
+    }
+
+    private static class CooperativePhaseWithoutAlarm extends Phase {
+
+        @Override
+        protected void run(StructuredGraph graph) {
+            if (CompilationAlarm.hasExpired()) {
+                throw new RuntimeException("Phase must not exit in the timeout path");
+            }
+        }
+    }
+
+    private static void sleep(long millis) {
+        try {
+            Thread.sleep(millis);
+        } catch (InterruptedException e) {
+            GraalError.shouldNotReachHere(e.getCause());
+        }
+    }
+
+    @Test(timeout = 60_000)
+    @SuppressWarnings("try")
+    public void test01() {
+        StructuredGraph g = parseEager("snippet", AllowAssumptions.NO);
+        try (OverrideScope o = OptionValue.override(CompilationAlarm.Options.CompilationExpirationPeriod, 1/* sec */);
+                        CompilationAlarm c1 = CompilationAlarm.trackCompilationPeriod()) {
+            new CooperativePhase().apply(g);
+        }
+    }
+
+    @Test(expected = RetryableBailoutException.class, timeout = 60_000)
+    @SuppressWarnings("try")
+    public void test02() {
+        StructuredGraph g = parseEager("snippet", AllowAssumptions.NO);
+        try (OverrideScope o = OptionValue.override(CompilationAlarm.Options.CompilationExpirationPeriod, 1/* sec */);
+                        CompilationAlarm c1 = CompilationAlarm.trackCompilationPeriod()) {
+            new UnCooperativePhase().apply(g);
+        }
+    }
+
+    @Test(timeout = 60_000)
+    @SuppressWarnings("try")
+    public void test03() {
+        StructuredGraph g = parseEager("snippet", AllowAssumptions.NO);
+        // 0 disables alarm utility
+        try (OverrideScope o = OptionValue.override(CompilationAlarm.Options.CompilationExpirationPeriod, 0);
+                        CompilationAlarm c1 = CompilationAlarm.trackCompilationPeriod()) {
+            new ParlyCooperativePhase().apply(g);
+        }
+    }
+
+    @Test(timeout = 60_000)
+    @SuppressWarnings("try")
+    public void test04() {
+        StructuredGraph g = parseEager("snippet", AllowAssumptions.NO);
+        new CooperativePhaseWithoutAlarm().apply(g);
+    }
+}