https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78655
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Richard Biener from comment #1) > Of course I wonder why the check is here in the first place... Is placement > new valid for nullptr? It used to be, but is now UB, since http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1748 (There's more background in the PR Marc mentioned, PR 35878).
