#version 310 es
precision mediump float;

layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void unused_entry_point() {
  return;
}
void main() {
  unused_entry_point();
}



int i(int x) {
  return ~(x);
}

uint u(uint x) {
  return ~(x);
}

ivec4 vi(ivec4 x) {
  return ~(x);
}

uvec4 vu(uvec4 x) {
  return ~(x);
}
