[Bug c/88481] -O1 causes optimizer to drop 'then' clause in conditional

[heinrich.seebauer at swistec dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88481

--- Comment #3 from Heinrich Seebauer <heinrich.seebauer at swistec dot de> ---
Thanks, Alexander, for your advice, I will try to isolate this symptom further.
Added the attachment ...