[Bug rtl-optimization/67145] [6 Regression] associativity from pseudo-reg ordering

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67145

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I'm with rth here, I think we should apply his patch.