[PATCH] Use __builtin_memmove for trivially copy assignable types

[Jonathan Wakely]

On 19/07/18 10:32 -0400, Glen Fernandes wrote:
>On Thu, Jul 19, 2018 at 10:01 AM Glen Fernandes wrote:
>>
>> I was still unclear about that, but I forwarded you an e-mail from
>> Marshall with his answer when I asked whether libc++'s use of
>> TriviallyCopyAssignable here was incorrect. Let me know if it applies
>> here, and if not (and that interpretation of the standard is
>> incorrect), I'll update the patch to do as you suggest and run the
>> tests again.
>>
>> Glen
>
>Attached: patch.txt
>
>Use __builtin_memmove for trivially copyable types
>
>2018-07-19  Glen Joseph Fernandes  <glenjofe@gmail.com>
>
>    * include/bits/stl_algobase.h
>    (__copy_move_a): Used __is_trivially_copyable.
>    (__copy_move_backward_a): Likewise.
>
>Tested x86_64-pc-linux-gnu.

Ah, that was quick :-)

Can we keep the new test you added in the previous patch? It seems
useful to add anyway.