hotspot/test/compiler/arraycopy/TestMissingControl.java
changeset 26180 2fbed11af70e
child 40059 c2304140ed64
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/arraycopy/TestMissingControl.java	Tue Aug 19 17:23:38 2014 +0200
@@ -0,0 +1,106 @@
+/*
+ * 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 8055153
+ * @summary missing control on LoadRange and LoadKlass when array copy macro node is expanded
+ * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation TestMissingControl
+ *
+ */
+public class TestMissingControl {
+
+    static int[] m1(int[] a2) {
+        int[] a1 = new int[10];
+        System.arraycopy(a1, 0, a2, 0, 10);
+        return a1;
+    }
+
+    static class A {
+    }
+
+    static Object m2(Object[] a2) {
+        A[] a1 = new A[10];
+        System.arraycopy(a1, 0, a2, 0, 10);
+        return a1;
+    }
+
+    static void test1() {
+        int[] a2 = new int[10];
+        int[] a3 = new int[5];
+
+        // compile m1 with arraycopy intrinsified
+        for (int i = 0; i < 20000; i++) {
+            m1(a2);
+        }
+
+        // make m1 trap
+        for (int i = 0; i < 10; i++) {
+            try {
+                m1(a3);
+            } catch(IndexOutOfBoundsException ioobe) {
+            }
+        }
+
+        // recompile m1
+        for (int i = 0; i < 20000; i++) {
+            m1(a2);
+        }
+
+        try {
+            m1(null);
+        } catch(NullPointerException npe) {}
+    }
+
+    static void test2() {
+        A[] a2 = new A[10];
+        A[] a3 = new A[5];
+
+        // compile m2 with arraycopy intrinsified
+        for (int i = 0; i < 20000; i++) {
+            m2(a2);
+        }
+
+        // make m2 trap
+        for (int i = 0; i < 10; i++) {
+            try {
+                m2(a3);
+            } catch(IndexOutOfBoundsException ioobe) {
+            }
+        }
+
+        // recompile m2
+        for (int i = 0; i < 20000; i++) {
+            m2(a2);
+        }
+
+        try {
+            m2(null);
+        } catch(NullPointerException npe) {}
+    }
+
+    static public void main(String[] args) {
+        test1();
+        test2();
+    }
+}