[Bug c++/82021] Unnecessary null pointer check in global placement new (and also in any class-specific placement new operator declared as noexcept)

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82021

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
Did you try with -std=c++1z? (if that solves your issue, this is a DUP, it
should be enabled in all mode, but it isn't yet)