ABI 

struct TriviallyCopyable {
  int x; int y;
};

__attribute__((noinline))
TriviallyCopyable Make(int a, int b) {
  return {a + 1, b + 2};
}
^ This is Faster?
struct NonTriviallyCopyable {
  int x; int y;
  ~NonTriviallyCopyable() {}
};

__attribute__((noinline))
NonTriviallyCopyable Make(int a, int b) {
  return {a + 1, b + 2};
}
^ This is Faster?

* The benchmark is run under AMD Ryzen 9.

* For the full benchmark code, please refer here.

* For illustration purposes only, see FAQ for more details.