@group(0) @binding(1) var t : texture_2d<f32>;
@group(0) @binding(2) var s : sampler;

@fragment
fn main(@location(0) x : f32) {
  @diagnostic(warning, derivative_uniformity)
  switch (i32(x == 0.0 && dpdx(1.0) == 0.0)) {
    default {
    }
  }
}