[PATCH] PR libstdc++/87431 re-adjust never-valueless optimizations

[Jonathan Wakely]

On 03/04/19 23:27 +0100, Jonathan Wakely wrote:
>On 03/04/19 23:32 +0300, Antony Polukhin wrote:
>>Looks good. Covers most of the use cases.
>>
>>Please consider adding filesystem::path, pair, tuple, string_view?,
>
>string_view is trivially_copyable, and < 256 bytes, so works
>automatically.
>
>>error_code, list, deque (myabe all the other containers), optional, variant
>>itself (for cases when variant holds another variant).
>
>I hadn't thought about error_code and recursive variants, I'll check
>those can be made to work.

error_code is trivially copyasble and small, so handled automatically.