[Bug middle-end/82694] [8 regression] Linux kernel miscompiled since r250765

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82694

--- Comment #9 from amker at gcc dot gnu.org ---
(In reply to Markus Trippelsdorf from comment #8)
> I think -fno-strict-overflow/-fwrapv should use the old behavior.
> The kernel really needs a flag to control pointer wrapping.

Well, GCC doesn't provide such a flag now.  Before the change, it was
-fno-strict-overflow/-fwrapv.  And the support for wrapping pointer is far from
complete, that's one point of the change.