dawn-cmake/test/shader_io/fragment_input_builtins.wgs...

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#include <metal_stdlib>
using namespace metal;
struct tint_symbol_2 {
float4 position [[position]];
bool front_facing [[front_facing]];
uint sample_index [[sample_id]];
uint sample_mask [[sample_mask]];
};
fragment void tint_symbol(tint_symbol_2 tint_symbol_1 [[stage_in]]) {
float4 const position = tint_symbol_1.position;
bool const front_facing = tint_symbol_1.front_facing;
uint const sample_index = tint_symbol_1.sample_index;
uint const sample_mask = tint_symbol_1.sample_mask;
if (front_facing) {
float4 const foo = position;
uint const bar = (sample_index + sample_mask);
}
return;
}