[Bug tree-optimization/119977] [16 regression] Bootstrap comparison failure with -march=znver4 -ggdb3 and bootstrap-lto since r16-152-g4f7b3c24112016

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119977

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
> It also goes away if I apply -fchecking=1 to stage2.

Hmm, this could point to someone missing an update_stmt. Or something similar
as the verifiers cause updates when the pass didn't.