#version 450
layout(local_size_x = 4, local_size_y = 4, local_size_z = 1) in;

const int indexable[4] = int[](0, 1, 2, 3);
const int indexable_1[4] = int[](4, 5, 6, 7);

layout(binding = 0, std430) buffer SSBO
{
    int values[];
} _8;

void main()
{
    _8.values[gl_GlobalInvocationID.x] = indexable[gl_LocalInvocationID.x] + indexable_1[gl_LocalInvocationID.y];
}