https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98130
--- Comment #9 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #8) > Oops, yes, dunno why it didn't work for me before, confirmed now that it > works with the patch and fails without. > > I think we want it even for the operator delete case, I believe the C++ > standard only constraints how the replaceable operators work, not arbitrary > user operator new/delete/new[]/delete[] operators. I bet it's pretty similar to what we have for -fallocation-dce: valid_new_delete_pair_p?