[Bug libstdc++/113835] [13/14 Regression] compiling std::vector with const size in C++20 is slow

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113835

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> GCC 12 was fast (possibly std::vector wasn't constexpr there?)

It was constexpr since 12.1.0

So this might be related to Jason's implicit constexpr changes instead.