tests/sksl/wgsl/UserDefinedPipelineIO.wgsl

struct FSIn {
    @builtin(front_facing) sk_Clockwise: bool,
    @location(1) input1: f32,
    @location(2) input2: f32,
    @location(3) input3: vec2<f32>,
    @location(4) @interpolate(flat) input4: i32,
    @location(5) @interpolate(flat) input5: vec2<i32>,
};
struct FSOut {
    @location(1) output1: f32,
    @location(2) output2: f32,
    @location(3) output3: vec2<f32>,
    @location(4) @interpolate(flat) output4: i32,
    @location(5) @interpolate(flat) output5: vec2<i32>,
};
fn main() {
}
@fragment fn fragmentMain(_stageIn: FSIn) -> FSOut {
    var _stageOut: FSOut;
    main();
    return _stageOut;
}