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

void main()
{
    float addInvocations = addInvocationsNonUniformAMD(0.0);
    int minInvocations = minInvocationsNonUniformAMD(1);
    uint maxInvocations = uint(maxInvocationsNonUniformAMD(4));
}