Well, loops in general will be unrolled and vectorized by CLANG, so that's just what you would expect to happen. In order to get it to that with memcpy, you would have to first make sure it was going to use a builtin version of that, so it knew what it was - which honestly I thought it did by default, but maybe I am wrong about that? The…
Well, loops in general will be unrolled and vectorized by CLANG, so that's just what you would expect to happen. In order to get it to that with memcpy, you would have to first make sure it was going to use a builtin version of that, so it knew what it was - which honestly I thought it did by default, but maybe I am wrong about that? There may be some additional compiler switches you could add to make it do that... since I never rely on builtin memcpy/memset I am not sure what they would be.
Well, loops in general will be unrolled and vectorized by CLANG, so that's just what you would expect to happen. In order to get it to that with memcpy, you would have to first make sure it was going to use a builtin version of that, so it knew what it was - which honestly I thought it did by default, but maybe I am wrong about that? There may be some additional compiler switches you could add to make it do that... since I never rely on builtin memcpy/memset I am not sure what they would be.
- Casey