uniform half4 colorGreen;

void original_fuzzer_output() {
    float y[8],z;
    z,y[3 .1L[y[7]=y[3],4]]+=0;
}

half4 main(float2 coords) {
    int x[1], y=0, z=0;

    // This line triggers two optimizations:
    // 1 - No-op arithmetic simplification removes the `+= 0` and changes the ref-kind of `x` from
    //     "write" to "read". Crucially, the ref-kind of `y` must remain "write."
    // 2 - Comma-operator simplification detects that the leftmost `0, ` has no side effect and
    //     eliminates it. This is done by returning a clone of the right-side expression. The act of
    //     cloning the right-side expression can lead to an assertion if `y` has the wrong ref-kind.
    0, x[y=z] += 0;

    return colorGreen;
}