#include <metal_stdlib>

using namespace metal;
void main_1() {
  int2 const x_1 = as_type<int2>((as_type<uint2>(int2(30, 40)) << as_type<uint2>(int2(40, 30))));
  return;
}

fragment void tint_symbol() {
  main_1();
  return;
}

