@fragment fn main(@location(0) @interpolate(flat) loc0 : i32, @location(1) @interpolate(flat) loc1 : u32, @location(2) loc2 : f32, @location(3) loc3 : vec4<f32>) { let i : i32 = loc0; let u : u32 = loc1; let f : f32 = loc2; let v : vec4<f32> = loc3; }