<dawn>/test/tint/diagnostic_filtering/switch_body_attribute.wgsl:5:11 warning: 'dpdx' must only be called from uniform control flow
      _ = dpdx(1.0);
          ^^^^^^^^^

<dawn>/test/tint/diagnostic_filtering/switch_body_attribute.wgsl:3:3 note: control flow depends on possibly non-uniform value
  switch (i32(x)) @diagnostic(warning, derivative_uniformity) {
  ^^^^^^

<dawn>/test/tint/diagnostic_filtering/switch_body_attribute.wgsl:3:15 note: user-defined input 'x' of 'main' may be non-uniform
  switch (i32(x)) @diagnostic(warning, derivative_uniformity) {
              ^

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