[Bug rtl-optimization/119681] move instructions inside the unrolled loop of core_list_reverse () with -O3 -funroll-all-loops; not copying the return block

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119681

--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note I think the bigger issue is the RTL unroller does do introduce new pseudo
registers when it is copying basic blocks and does not do live range splitting
which is why you get the moves inside the loop. I think your hack might fix the
exit block, it does not fix the overall issue.