#version 450
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;

layout(binding = 0, std430) buffer SSBO
{
    uint a;
    uint b;
} _5;

void main()
{
    uint _20 = atomicAdd(_5.b, 0u);
    uint c = _20;
    atomicExchange(_5.a, c);
}