hotspot/test/compiler/arraycopy/TestEliminatedArrayCopyPhi.java
changeset 32402 a20f90d1f364
child 40059 c2304140ed64
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/arraycopy/TestEliminatedArrayCopyPhi.java	Wed Aug 26 09:49:37 2015 +0200
@@ -0,0 +1,55 @@
+/*
+ * 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 8134321
+ * @summary Code that capture field values of eliminated allocation at a safepoint when there's an arraycopy behind a Phi is broken
+ * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestEliminatedArrayCopyPhi
+ *
+ */
+
+public class TestEliminatedArrayCopyPhi {
+
+    static int[] escaped;
+
+    static void test(int[] src, boolean flag1, boolean flag2) {
+        int[] array = new int[10];
+        if (flag1) {
+            System.arraycopy(src, 0, array, 0, src.length);
+        } else {
+        }
+
+        if (flag2) {
+            // never taken
+            escaped = array;
+        }
+    }
+
+    public static void main(String[] args) {
+        int[] src = new int[10];
+        for (int i = 0; i < 20000; i++) {
+            test(src, (i % 2) == 0, false);
+        }
+    }
+}