[Bug rtl-optimization/119681] extraneous move instructions when unrolling core_list_reverse () with -O3 -funroll-all-loops; not copying the return block

[artemiy at synopsys dot com via Gcc-bugs]

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

--- Comment #4 from Artemiy Volkov <artemiy at synopsys dot com> ---
Created attachment 61036
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61036&action=edit
patch v0.1