#pragma clang diagnostic ignored "-Wmissing-prototypes"
#pragma clang diagnostic ignored "-Wmissing-braces"
#pragma clang diagnostic ignored "-Wunused-variable"

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

using namespace metal;

template<typename T, size_t Num>
struct spvUnsafeArray
{
    T elements[Num ? Num : 1];
    
    thread T& operator [] (size_t pos) thread
    {
        return elements[pos];
    }
    constexpr const thread T& operator [] (size_t pos) const thread
    {
        return elements[pos];
    }
    
    device T& operator [] (size_t pos) device
    {
        return elements[pos];
    }
    constexpr const device T& operator [] (size_t pos) const device
    {
        return elements[pos];
    }
    
    constexpr const constant T& operator [] (size_t pos) const constant
    {
        return elements[pos];
    }
    
    threadgroup T& operator [] (size_t pos) threadgroup
    {
        return elements[pos];
    }
    constexpr const threadgroup T& operator [] (size_t pos) const threadgroup
    {
        return elements[pos];
    }
};

struct A
{
    int a;
    int b;
};

struct A_1
{
    spvUnsafeArray<A, 1> Data;
};

struct A_2
{
    int a;
    int b;
    char _m0_final_padding[8];
};

struct A_3
{
    spvUnsafeArray<A_2, 1024> Data;
};

struct B
{
    spvUnsafeArray<A, 1> Data;
};

struct B_1
{
    spvUnsafeArray<A_2, 1024> Data;
};

kernel void main0(device A_1& C1 [[buffer(0)]], constant A_3& C2 [[buffer(1)]], device B& C3 [[buffer(2)]], constant B_1& C4 [[buffer(3)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
{
    C1.Data[gl_GlobalInvocationID.x].a = C2.Data[gl_GlobalInvocationID.x].a;
    C1.Data[gl_GlobalInvocationID.x].b = C2.Data[gl_GlobalInvocationID.x].b;
    C3.Data[gl_GlobalInvocationID.x].a = C4.Data[gl_GlobalInvocationID.x].a;
    C3.Data[gl_GlobalInvocationID.x].b = C4.Data[gl_GlobalInvocationID.x].b;
}