; RUN: llvm-upgrade < %s | llvm-as | llvm-dis | not grep { bitcast (}

%.Base64_1 = external constant [4 x sbyte] 

ubyte %test(sbyte %Y) {         ; No predecessors!
        %X = cast sbyte %Y to ubyte             ; <ubyte> [#uses=1]
        %tmp.13 = add ubyte %X, cast (sbyte sub (sbyte 0, sbyte cast ([4 x sbyte]* %.Base64_1 to sbyte)) to ubyte)              ; <ubyte> [#uses=1]
        ret ubyte %tmp.13
}