tests/sksl/shared/DeadStripFunctions.sksl

/*#pragma settings NoInline*/

half4 dead_fn(half4 a, half4 b) {
    return a * b;
}

half4 live_fn(half4 a, half4 b) {
    return a + b;
}

void main() {
    @switch (999) {
        // Dead stripping a user function.
        case 0: sk_FragColor = dead_fn(half4(0.5), half4(2)); break;

        // A live user function.
        case 999: sk_FragColor = live_fn(half4(3), half4(-3)); break;
    }

    @switch (777) {
        // Dead stripping a built-in function.
        case 0: sk_FragColor = blend_modulate(half4(1), half4(-1)); break;

        // A live built-in function.
        case 777: sk_FragColor = blend_dst(half4(7), half4(-7)); break;
    }
}