uniform half4 colorGreen, colorRed;

inline half4 ifBody() {
    half4 x = colorGreen;
    return x;
}

inline half4 nestedIfBody() {
    return ifBody();
}

inline bool trueCondition() {
    return colorRed.r == 1;
}

inline bool falseCondition() {
    return colorGreen.r == 1;
}

half4 main(float2 coords) {
    half4 a = colorRed, b = colorRed, c = colorRed;

    if (colorGreen.g == 1)
        a = ifBody();

    if (trueCondition())
        b = nestedIfBody();

    if (falseCondition()) /* no-op */;
    else
        c = ifBody();

    return min(min(a, b), c);
}