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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/98130] [11 regression] placement new fails on
 webkit-gtk-2.28.4 since r11-4745-g58c9de46541ade79
Date: Fri, 04 Dec 2020 12:37:37 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98130

--- Comment #9 from Martin Li=C5=A1ka <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.
>=20
> I think we want it even for the operator delete case, I believe the C++
> standard only constraints how the replaceable operators work, not arbitra=
ry
> 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?=