https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119106
--- Comment #1 from federico <federico.perini at gmail dot com> ---
The `-fdump-tree-original` seems to highlight that:
The `save`d variable data is accessed with unrolled indices
[...] = n[(integer(kind=8)) i[0] + -1][1]{lb: 1 sz: 1};
The `parameter` variable data is accessed also unrolled, but instead of the
unrolled indices (0, 1, 2, ...) there is `j`:
[...] = p[(integer(kind=8)) i[(integer(kind=8)) j + -1] + -1][1]{lb: 1 sz: 1};
but `j` is undefined! So it would seem like for some reason, `j` has not been
replaced by the unrolled index during the unrolling.
