[Bug target/120870] [16/17 regression] CPython miscompiled with preserve_none and CFLAGS="-O2 -march=znver2 -ggdb3"

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120870

--- Comment #26 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to H.J. Lu from comment #25)
> Created attachment 64373 [details]
> A patch to implement TARGET_FNTYPE_ABI
> 
> Please try this.

It doesn't work.