[Bug tree-optimization/123372] [15/16 Regression] ICE in expand_fn_using_insn on .SAT_SUB while building OpenTTD with LTO since r15-1671

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123372

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Sam James from comment #1)
> Wonder why we didn't see it yet.

It was i686 and s390x only for us, and only reproduceable with LTO:
https://copr.fedorainfracloud.org/coprs/siddhesh/mbp-gcc-16/build/9957075/