#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 P
{
    float a;
    float b;
};

struct C
{
    float a;
    float b;
};

struct main0_out
{
    float c_b;
    float4 gl_Position;
};

struct main0_patchOut
{
    float m_11_a;
    float m_11_b;
};

static inline __attribute__((always_inline))
void write_in_function(device main0_patchOut& patchOut, threadgroup spvUnsafeArray<C, 4>& c, device main0_out* thread & gl_out, thread uint& gl_InvocationID)
{
    patchOut.m_11_a = 1.0;
    patchOut.m_11_b = 2.0;
    c[gl_InvocationID].a = 3.0;
    gl_out[gl_InvocationID].c_b = 4.0;
    gl_out[gl_InvocationID].gl_Position = float4(1.0);
}

kernel void main0(uint3 gl_GlobalInvocationID [[thread_position_in_grid]], device main0_out* spvOut [[buffer(28)]], constant uint* spvIndirectParams [[buffer(29)]], device main0_patchOut* spvPatchOut [[buffer(27)]], device MTLQuadTessellationFactorsHalf* spvTessLevel [[buffer(26)]])
{
    device main0_out* gl_out = &spvOut[gl_GlobalInvocationID.x - gl_GlobalInvocationID.x % 4];
    threadgroup spvUnsafeArray<C, 4> spvStoragec[8];
    threadgroup auto &c = spvStoragec[(gl_GlobalInvocationID.x / 4) % 8];
    device main0_patchOut& patchOut = spvPatchOut[gl_GlobalInvocationID.x / 4];
    uint gl_InvocationID = gl_GlobalInvocationID.x % 4;
    uint gl_PrimitiveID = min(gl_GlobalInvocationID.x / 4, spvIndirectParams[1] - 1);
    write_in_function(patchOut, c, gl_out, gl_InvocationID);
}

