struct buf0 {
  three : f32;
};

[[group(0), binding(0)]] var<uniform> x_5 : buf0;

var<private> x_GLF_color : vec4<f32>;

fn main_1() {
  let x_26 : f32 = x_5.three;
  if ((dot(vec2<f32>(2.0, x_26), vec2<f32>(0.0, 2.0)) == 6.0)) {
    x_GLF_color = vec4<f32>(1.0, 0.0, 0.0, 1.0);
  } else {
    x_GLF_color = vec4<f32>(0.0, 0.0, 0.0, 0.0);
  }
  return;
}

struct main_out {
  [[location(0)]]
  x_GLF_color_1 : vec4<f32>;
};

[[stage(fragment)]]
fn main() -> main_out {
  main_1();
  return main_out(x_GLF_color);
}
