test/tint/builtins/textureGather/i32/alpha.wgsl

@group(1) @binding(0) var t : texture_2d<i32>;
@group(1) @binding(1) var s : sampler;

@stage(fragment)
fn main() {
  var res : vec4<i32> = textureGather(3, t, s, vec2<f32>());
}