hotspot/test/compiler/dependencies/MonomorphicObjectCall/TestMonomorphicObjectCall.java
changeset 27700 a402738ebfcf
child 28040 e68bdf210a7e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/dependencies/MonomorphicObjectCall/TestMonomorphicObjectCall.java	Thu Nov 20 11:06:26 2014 +0100
@@ -0,0 +1,73 @@
+/*
+ * 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.
+ */
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collections;
+
+import com.oracle.java.testlibrary.*;
+
+/*
+ * @test
+ * @bug 8050079
+ * @summary Compiles a monomorphic call to finalizeObject() on a modified java.lang.Object to test C1 CHA.
+ * @library /testlibrary
+ * @compile -XDignore.symbol.file java/lang/Object.java TestMonomorphicObjectCall.java
+ * @run main TestMonomorphicObjectCall
+ */
+public class TestMonomorphicObjectCall {
+    final static String testClasses = System.getProperty("test.classes") + File.separator;
+
+    private static void callFinalize(Object object) throws Throwable {
+        // Call modified version of java.lang.Object::finalize() that is
+        // not overridden by any subclass. C1 CHA should mark the call site
+        // as monomorphic and inline the method.
+        object.finalizeObject();
+    }
+
+    public static void main(String[] args) throws Throwable {
+        if (args.length == 0) {
+            // Execute new instance with modified java.lang.Object
+            executeTestJvm();
+        } else {
+            // Trigger compilation of 'callFinalize'
+            callFinalize(new Object());
+        }
+    }
+
+    public static void executeTestJvm() throws Throwable {
+        // Execute test with modified version of java.lang.Object
+        // in -Xbootclasspath.
+        String[] vmOpts = new String[] {
+                "-Xbootclasspath/p:" + testClasses,
+                "-Xcomp",
+                "-XX:-VerifyDependencies",
+                "-XX:CompileOnly=TestMonomorphicObjectCall::callFinalize",
+                "-XX:CompileOnly=Object::finalizeObject",
+                "-XX:TieredStopAtLevel=1",
+                TestMonomorphicObjectCall.class.getName(),
+                "true"};
+        OutputAnalyzer output = ProcessTools.executeTestJvm(vmOpts);
+        output.shouldHaveExitValue(0);
+    }
+}