--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/ConditionalEliminationTest11.java	2017-02-15 16:57:27.120592340 -0800
@@ -0,0 +1,302 @@
+/*
+ * 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.
+ */
+package org.graalvm.compiler.core.test;
+
+import org.junit.Ignore;
+import org.junit.Test;
+
+import org.graalvm.compiler.api.directives.GraalDirectives;
+
+/**
+ * Collection of tests for
+ * {@link org.graalvm.compiler.phases.common.DominatorConditionalEliminationPhase} including those
+ * that triggered bugs in this phase.
+ */
+public class ConditionalEliminationTest11 extends ConditionalEliminationTestBase {
+    public ConditionalEliminationTest11() {
+        // Don't disable simplification
+        super(false);
+    }
+
+    @SuppressWarnings("all")
+    public static int referenceSnippet(int a) {
+        if ((a & 15) != 15) {
+            GraalDirectives.deoptimize();
+        }
+        return 0;
+    }
+
+    @Test
+    public void test1() {
+        testConditionalElimination("test1Snippet", "referenceSnippet");
+    }
+
+    @SuppressWarnings("all")
+    public static int test1Snippet(int a) {
+        if ((a & 8) != 8) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 15) != 15) {
+            GraalDirectives.deoptimize();
+        }
+        return 0;
+    }
+
+    @SuppressWarnings("all")
+    public static int test2Snippet(int a) {
+        if ((a & 8) == 0) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 15) != 15) {
+            GraalDirectives.deoptimize();
+        }
+        return 0;
+    }
+
+    @Test
+    public void test2() {
+        testConditionalElimination("test2Snippet", "referenceSnippet");
+    }
+
+    @SuppressWarnings("all")
+    public static int test3Snippet(int a) {
+        if ((a & 15) != 15) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 8) != 8) {
+            GraalDirectives.deoptimize();
+        }
+        return 0;
+    }
+
+    @Test
+    public void test3() {
+        // Test forward elimination of bitwise tests
+        testConditionalElimination("test3Snippet", "referenceSnippet");
+    }
+
+    @SuppressWarnings("all")
+    public static int test4Snippet(int a) {
+        if ((a & 15) != 15) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 8) == 0) {
+            GraalDirectives.deoptimize();
+        }
+        return 0;
+    }
+
+    @Test
+    public void test4() {
+        // Test forward elimination of bitwise tests
+        testConditionalElimination("test4Snippet", "referenceSnippet");
+    }
+
+    public static int test5Snippet(int a) {
+        if ((a & 5) == 5) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 7) != 0) {
+            return 0;
+        }
+        return 1;
+    }
+
+    @Test
+    public void test5() {
+        // Shouldn't be possible to optimize this
+        testConditionalElimination("test5Snippet", "test5Snippet");
+    }
+
+    public static int test6Snippet(int a) {
+        if ((a & 8) != 0) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 15) != 15) {
+            GraalDirectives.deoptimize();
+        }
+        return 0;
+    }
+
+    public static int reference6Snippet(int a) {
+        if ((a & 8) != 0) {
+            GraalDirectives.deoptimize();
+        }
+        GraalDirectives.deoptimize();
+        return 0;
+    }
+
+    @Test
+    public void test6() {
+        testConditionalElimination("test6Snippet", "reference6Snippet");
+    }
+
+    public static int test7Snippet(int a) {
+        if ((a & 15) == 15) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 8) == 8) {
+            GraalDirectives.deoptimize();
+        }
+        return a;
+    }
+
+    public static int reference7Snippet(int a) {
+        if ((a & 8) == 8) {
+            GraalDirectives.deoptimize();
+        }
+        return a;
+    }
+
+    @Test
+    public void test7() {
+        testConditionalElimination("test7Snippet", "reference7Snippet");
+    }
+
+    public static int test8Snippet(int a) {
+        if ((a & 16) == 16) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 8) != 8) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 44) != 44) {
+            GraalDirectives.deoptimize();
+        }
+        return a;
+    }
+
+    public static int reference8Snippet(int a) {
+        if ((a & 60) != 44) {
+            GraalDirectives.deoptimize();
+        }
+        return a;
+    }
+
+    @Ignore("requires merging of bit tests")
+    @Test
+    public void test8() {
+        testConditionalElimination("test8Snippet", "reference8Snippet");
+    }
+
+    public static int test9Snippet(int a) {
+        if ((a & 16) == 16) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 8) != 8) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 44) != 44) {
+            GraalDirectives.deoptimize();
+        }
+        if (a != 44) {
+            GraalDirectives.deoptimize();
+        }
+        return a;
+    }
+
+    public static int reference9Snippet(int a) {
+        if (a != 44) {
+            GraalDirectives.deoptimize();
+        }
+        return a;
+    }
+
+    @Test
+    public void test9() {
+        testConditionalElimination("test9Snippet", "reference9Snippet");
+    }
+
+    static class ByteHolder {
+        public byte b;
+
+        byte byteValue() {
+            return b;
+        }
+    }
+
+    public static int test10Snippet(ByteHolder b) {
+        int v = b.byteValue();
+        long a = v & 0xffffffff;
+        if (v != 44) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 16) == 16) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 8) != 8) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 44) != 44) {
+            GraalDirectives.deoptimize();
+        }
+
+        return v;
+    }
+
+    public static int reference10Snippet(ByteHolder b) {
+        byte v = b.byteValue();
+        if (v != 44) {
+            GraalDirectives.deoptimize();
+        }
+        return v;
+    }
+
+    @Test
+    public void test10() {
+        testConditionalElimination("test10Snippet", "reference10Snippet");
+    }
+
+    public static int test11Snippet(ByteHolder b) {
+        int v = b.byteValue();
+        long a = v & 0xffffffff;
+
+        if ((a & 16) == 16) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 8) != 8) {
+            GraalDirectives.deoptimize();
+        }
+        if ((a & 44) != 44) {
+            GraalDirectives.deoptimize();
+        }
+        if (v != 44) {
+            GraalDirectives.deoptimize();
+        }
+        return v;
+    }
+
+    public static int reference11Snippet(ByteHolder b) {
+        byte v = b.byteValue();
+        if (v != 44) {
+            GraalDirectives.deoptimize();
+        }
+        return v;
+    }
+
+    @Test
+    public void test11() {
+        testConditionalElimination("test11Snippet", "reference11Snippet");
+    }
+
+}