perl-5.26.1
==========
                     Rate copy_c_loop copy_c_loop_push copy_foreach copy_foreach_push copy_direct
copy_c_loop        6515/s          --              -4%         -24%              -38%        -64%
copy_c_loop_push   6761/s          4%               --         -21%              -35%        -63%
copy_foreach       8532/s         31%              26%           --              -18%        -53%
copy_foreach_push 10438/s         60%              54%          22%                --        -42%
copy_direct       18101/s        178%             168%         112%               73%          --