groupshared int arg_0;

void atomicMax_a89cc3() {
  int atomic_result = 0;
  InterlockedMax(arg_0, 1, atomic_result);
  int res = atomic_result;
}

struct tint_symbol_1 {
  uint local_invocation_index : SV_GroupIndex;
};

[numthreads(1, 1, 1)]
void compute_main(tint_symbol_1 tint_symbol) {
  const uint local_invocation_index = tint_symbol.local_invocation_index;
  {
    int atomic_result_1 = 0;
    InterlockedExchange(arg_0, 0, atomic_result_1);
  }
  GroupMemoryBarrierWithGroupSync();
  atomicMax_a89cc3();
  return;
}
