[Bug rtl-optimization/90378] [9/10 regression] -Os -flto miscompiles 454.calculix after r266385 on Arm

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90378

--- Comment #4 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
> Miscompilation occurs in same configuration: arm-linux-gnueabihf at -O2
> -flto.
> 

I don't see how these two patches *directly* resulted in miscompilation. 
Although it might trigger some latent bug.


> I'll try to narrow this down to a single object.

Thank you, Maxim.  Unfortunately I have no arm machine with spec2006 to
reproduce it by myself. You help here would be much appreciated.