[Bug target/120830] [16 regression] ICE when building opencv-4.11.0 (as_a, at machmode.h:391)

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120830

--- Comment #6 from Sam James <sjames at gcc dot gnu.org> ---
I'm reducing it but it is pretty slow. I may include a partial reduction in a
bit.