#include <metal_stdlib>
#include <simd/simd.h>

using namespace metal;

struct foo
{
    int a;
};

struct bar
{
    int b;
};

kernel void main0(device foo& x [[buffer(0)]], device bar& y [[buffer(1)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
{
    y.b = x.a + x.a;
}