[Bug tree-optimization/120080] [16 regression] ICE when building llvm-20.1.3 (find_bit_tests, at tree-switch-conversion.cc:1799) since r16-347-g1381a5114788a2

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120080

--- Comment #7 from Sam James <sjames at gcc dot gnu.org> ---
pipewire and a few other things hit this too, but I'll test any patch against
this rather than filing dupes for now.