uniform shader shaderGreen, shaderRed;
uniform half4 colorGreen;

// This code generates a 2^n fan-out of specialized functions.

noinline half4 fn(shader a, shader b, shader c, shader d, shader e, shader f, shader g) {
    return colorGreen;
}

noinline half4 fn(shader a, shader b, shader c, shader d, shader e, shader f) {
    return fn(a, b, c, d, e, f, shaderGreen) * fn(a, b, c, d, e, f, shaderRed);
}

noinline half4 fn(shader a, shader b, shader c, shader d, shader e) {
    return fn(a, b, c, d, e, shaderGreen) * fn(a, b, c, d, e, shaderRed);
}

noinline half4 fn(shader a, shader b, shader c, shader d) {
    return fn(a, b, c, d, shaderGreen) * fn(a, b, c, d, shaderRed);
}

noinline half4 fn(shader a, shader b, shader c) {
    return fn(a, b, c, shaderGreen) * fn(a, b, c, shaderRed);
}

noinline half4 fn(shader a, shader b) {
    return fn(a, b, shaderGreen) * fn(a, b, shaderRed);
}

noinline half4 fn(shader a) {
    return fn(a, shaderGreen) * fn(a, shaderRed);
}

half4 main(float2) {
    return fn(shaderGreen) * fn(shaderRed);
}