#include <metal_stdlib>

using namespace metal;
struct tint_array_wrapper {
  uint arr[2];
};
struct S {
  uint field0;
  float field1;
  tint_array_wrapper field2;
};

void main_1() {
  int2 x_200 = 0;
  if (true) {
    x_200 = int2(0, 0);
    x_200[1] = 3;
  } else {
    return;
  }
  int2 const x_201 = x_200;
  return;
}

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

