[Bug ipa/65028] [5 Regression] 450.soplex in SPEC CPU 2006 is miscompiled

[hubicka at ucw dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65028

--- Comment #14 from Jan Hubicka <hubicka at ucw dot cz> ---
Thanks for looking into that!
> 
> Why do we think rPrimary is 16-byte aligned when it is only 8-byte aligned?

ipa-cp newly does alignment propagation.  You may try to just disable it
by short cirucuiting ipcp_store_alignment_results
(also you ought to be able to find the wrong alignment upgrade in the ipa-cp
dumps)

Honza