[Bug middle-end/87869] Unrolled loop leads to excessive code bloat with -Os on ARC EM.

[nbowler at draconx dot ca]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87869

--- Comment #5 from Nick Bowler <nbowler at draconx dot ca> ---
Looking at some of my other code output, it looks that these long encodings are
emitted a lot more frequently than it would seem they are needed.

If shorter store encodings were used more generally then I'd expect to see
significant size improvements not just to the test case under discussion here
but to that other code as well.