SPIRV-Cross/reference/shaders-msl-no-opt/packing/struct-size-padding-array-of-array.comp

#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 A
{
    float v;
    char _m0_final_padding[12];
};

struct B
{
    float2 v;
    char _m0_final_padding[8];
};

struct C
{
    float3 v;
};

struct D
{
    float4 v;
};

struct E
{
    float4 a;
    float2 b;
    char _m0_final_padding[8];
};

struct SSBO
{
    spvUnsafeArray<spvUnsafeArray<A, 2>, 4> a;
    spvUnsafeArray<spvUnsafeArray<B, 2>, 4> b;
    spvUnsafeArray<spvUnsafeArray<C, 2>, 4> c;
    spvUnsafeArray<spvUnsafeArray<D, 2>, 4> d;
    spvUnsafeArray<spvUnsafeArray<float2x4, 2>, 4> e;
    spvUnsafeArray<E, 1> f;
};

constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(1u);

kernel void main0(device SSBO& _32 [[buffer(0)]])
{
    _32.f[0].a = float4(2.0);
    float2x2 tmp = float2x2(_32.e[0][1][0].xy, _32.e[0][1][1].xy);
    _32.e[1][2][0].xy = tmp[0];
    _32.e[1][2][1].xy = tmp[1];
}