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

#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 SSBO0
{
    spvUnsafeArray<float4, 1> as;
};

struct SSBO1
{
    spvUnsafeArray<float4, 1> bs;
};

struct Composite
{
    float4 a;
    float4 b;
};

constant spvUnsafeArray<float4, 2> _43 = spvUnsafeArray<float4, 2>({ float4(20.0), float4(40.0) });

kernel void main0(device SSBO0& _16 [[buffer(0)]], device SSBO1& _32 [[buffer(1)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]], uint gl_LocalInvocationIndex [[thread_index_in_threadgroup]])
{
    spvUnsafeArray<float4, 2> _37 = { _16.as[gl_GlobalInvocationID.x], _32.bs[gl_GlobalInvocationID.x] };
    spvUnsafeArray<float4, 2> values;
    values = _37;
    Composite c = Composite{ values[0], _43[1] };
    _16.as[0] = values[gl_LocalInvocationIndex];
    _32.bs[1] = c.b;
}