#version 450
#extension GL_EXT_buffer_reference : require
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;

layout(buffer_reference) buffer Block;
layout(buffer_reference, buffer_reference_align = 4, std430) buffer Block
{
    float v;
};

layout(set = 0, binding = 0, std140) uniform UBO
{
    Block blocks[4];
} ubo;

void main()
{
    Block blocks[4];
    blocks[0] = ubo.blocks[0];
    blocks[1] = ubo.blocks[1];
    blocks[2] = ubo.blocks[2];
    blocks[3] = ubo.blocks[3];
    blocks[gl_WorkGroupID.x].v = 20.0;
}