hotspot/test/compiler/jsr292/NonInlinedCall/GCTest.java
changeset 35086 bbf32241d851
child 35099 982950884444
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/jsr292/NonInlinedCall/GCTest.java	Fri Dec 04 23:46:19 2015 +0300
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2015, 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 8072008
+ * @library /testlibrary /../../test/lib
+ * @build GCTest NonInlinedReinvoker
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ *                              sun.hotspot.WhiteBox$WhiteBoxPermission
+ *                              java.lang.invoke.GCTest
+ *                              java.lang.invoke.GCTest$T
+ *                              java.lang.invoke.NonInlinedReinvoker
+ *                              jdk.test.lib.Asserts
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
+ *                   -Xbatch -XX:-TieredCompilation -XX:CICompilerCount=1
+ *                      java.lang.invoke.GCTest
+ */
+package java.lang.invoke;
+
+import sun.hotspot.WhiteBox;
+
+import java.lang.ref.*;
+import static jdk.test.lib.Asserts.*;
+
+public class GCTest {
+    static final MethodHandles.Lookup LOOKUP = MethodHandles.Lookup.IMPL_LOOKUP;
+
+    static class T {
+        static int f1() { return 0; }
+        static int f2() { return 1; }
+    }
+
+    static @Stable MethodHandle mh;
+    static PhantomReference<LambdaForm> lform;
+
+    static final ReferenceQueue<LambdaForm> rq = new ReferenceQueue<>();
+    static final WhiteBox WB = WhiteBox.getWhiteBox();
+
+    @DontInline
+    static int invokeBasic() {
+        try {
+            return (int) mh.invokeBasic();
+        } catch (Throwable e) {
+            throw new Error(e);
+        }
+    }
+
+    static void test(int expected) {
+        for (int i = 0; i < 20_000; i++) {
+            invokeBasic();
+        }
+        assertEquals(invokeBasic(), expected);
+    }
+
+    public static void main(String[] args) throws Exception {
+        mh = NonInlinedReinvoker.make(
+                LOOKUP.findStatic(T.class, "f1", MethodType.methodType(int.class)));
+
+        // Monitor LambdaForm GC
+        lform = new PhantomReference<>(mh.form, rq);
+
+        test(0);
+        WB.clearInlineCaches();
+        test(0);
+
+        mh = NonInlinedReinvoker.make(
+                LOOKUP.findStatic(T.class, "f2", MethodType.methodType(int.class)));
+
+        Reference<?> ref = null;
+        while (ref == null) {
+            WB.fullGC();
+            try {
+                ref = rq.remove(1000);
+            } catch (InterruptedException e) { /*ignore*/ }
+        }
+
+        test(1);
+        WB.clearInlineCaches();
+        test(1);
+
+        System.out.println("TEST PASSED");
+    }
+}