layout(set = 0, binding = 0) sampler2D aSampler;
layout(set = 0, binding = 1) sampler2D aSecondSampler;

noinline half4 bar(sampler2D s) {
    return sample(s, float2(0));
}

noinline half4 foo() {
    half4 a = bar(aSampler);
    half4 b = bar(aSecondSampler);
    return a + b;
}

void main() {
    foo();
}