--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/compiler/gcbarriers/EqvUncastStepOverBarrier.java	Thu Nov 08 10:08:52 2018 +0100
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2018, Red Hat, 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 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 8212673
+ * @summary Node::eqv_uncast() shouldn't step over load barriers unconditionally
+ * @library /test/lib /
+ * @modules java.base/jdk.internal.misc
+ *
+ * @build sun.hotspot.WhiteBox
+ * @run driver ClassFileInstaller sun.hotspot.WhiteBox
+ *                                sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:-UseOnStackReplacement -XX:-TieredCompilation -XX:-BackgroundCompilation EqvUncastStepOverBarrier
+ */
+
+import sun.hotspot.WhiteBox;
+import java.lang.reflect.Method;
+
+public class EqvUncastStepOverBarrier {
+    static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
+
+    private static Object field = new A();
+
+    public static void main(String[] args) throws Exception {
+        for (int i = 0; i < 20_000; i++) {
+            test();
+            test();
+            test_helper(null, 0);
+        }
+        Method m = EqvUncastStepOverBarrier.class.getDeclaredMethod("test");
+        WHITE_BOX.enqueueMethodForCompilation(m, 4);
+        if (!WHITE_BOX.isMethodCompiled(m, false)) {
+            throw new RuntimeException("Method compilation failed");
+        }
+    }
+
+    private static Object test() {
+        Object o = field;
+        if (o == null) {}
+        for (int i = 1; i < 100; i *= 2) {
+            int j = 0;
+            for (; j < 4; j++) ;
+            o = test_helper(o, j);
+        }
+        return o;
+    }
+
+    private static Object test_helper(Object o, int j) {
+        if (j == 4) {
+            A a = (A) o;
+            o = a;
+        } else {
+            o = new Object();
+        }
+        return o;
+    }
+
+    private static class A {
+    }
+}