diff test/compiler/6877254/Test.java @ 985:685e959d09ea

6877254: Server vm crashes with no branches off of store slice" when run with CMS and UseSuperWord(default) Summary: design StoreCMNode::Ideal to promote its oopStore input if the input is a MergeMem node Reviewed-by: kvn, never
author cfang
date Mon, 14 Sep 2009 09:49:54 -0700
parents
children 648fe315b257
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/6877254/Test.java	Mon Sep 14 09:49:54 2009 -0700
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug 6877254
+ * @summary Implement StoreCMNode::Ideal to promote its OopStore above the MergeMem
+ *
+ * @run main/othervm -server -Xcomp -XX:+UseConcMarkSweepGC Test
+ */
+
+public class Test {
+    static byte var_1;
+    static String var_2 = "";
+    static byte var_3;
+    static float var_4 = 0;
+
+    public static void main(String[] args) {
+        int i = 0;
+
+        for (String var_tmp = var_2; i < 11; var_1 = 0, i++) {
+            var_2 = var_2;
+            var_4 *= (var_4 *= (var_3 = 0));
+        }
+
+        System.out.println("var_1 = " + var_1);
+        System.out.println("var_2 = " + var_2);
+        System.out.println("var_3 = " + var_3);
+        System.out.println("var_4 = " + var_4);
+    }
+}