[Bug tree-optimization/86214] [8/9 Regression] Strongly increased stack usage

[steinar+gcc at gunderson dot no]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86214

--- Comment #6 from Steinar H. Gunderson <steinar+gcc at gunderson dot no> ---
I wouldn't be surprised if everything is really over-reduced, and that GCC 7
just happens not to hit this by luck.

I'll be making a checkout of the public git repository and try to reproduce
there, so that I can give you an unreduced version.