[Bug lto/107014] flatten+lto fails the kernel build

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107014

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The whole point of "flatten" is that there's _no_ limit.  Looking at the
function I don't see why you'd ever use that?

If the desire is to force inlining a specific call then I think there's
currently
no good way to get that.  It doesn't seem to be possible to use an
always-inline
alias to get this behavior at least.  Some not existing #pragma GCC inline
might be a better solution than "flatten".

But as said, I'd just remove "flatten" - is it known what it was added for?