jtreg -javaoption:-XX:+EnableValhallaC1 -javaoption:-XX:TieredStopAtLevel=1 Ifacmp.java

http://hg.openjdk.java.net/valhalla/valhalla/file/2b098533f1e5/test/hotspot/jtreg/runtime/valhalla/valuetypes/Ifacmp.java

The following test case fails:

    public void testLocalValues() {
        // "aload + ifacmp" should be same as "aaload + ifamcp"
        // but let's be paranoid...
        MyValue a = new MyValue(11);
        MyValue b = new MyValue(11);
        MyValue c = a;
        MyValue a1 = new MyValue(7);
        MyValue2 a2 = new MyValue2(13);

        if (acmpModeInlineAlwaysFalse) {
            if (a == b) throw new RuntimeException("Always false fail " + a + " == " + b);
            if (a == c) throw new RuntimeException("Always false fail " + a + " == " + c);
        } else {
FAIL>> if (a != b) throw new RuntimeException("Substitutability test failed" + a + " != " + b);
            if (a != c) throw new RuntimeException("Substitutability test failed");
        }
        if (a == a1) throw new RuntimeException();
        checkEqual(a, a2, false);
    }