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

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

using namespace metal;

struct u0_counters
{
    uint c;
};

// Returns 2D texture coords corresponding to 1D texel buffer coords
uint2 spvTexelBufferCoord(uint tc)
{
    return uint2(tc % 4096, tc / 4096);
}

kernel void main0(device u0_counters& u0_counter [[buffer(0)]], texture2d<uint, access::write> u0 [[texture(0)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
{
    uint _29 = atomic_fetch_sub_explicit((volatile device atomic_uint*)&u0_counter.c, 1, memory_order_relaxed);
    u0.write(uint4(uint(int(gl_GlobalInvocationID.x))), spvTexelBufferCoord(as_type<int>(as_type<float>(_29))));
}