gcc loop unrolling problem ??

[Robert Dewar]

Jan Hubicka wrote:

> The bound on 8 unrollings is pretty artifical.  We do have other bound
> specifying the size of loop to reach.  Perhaps you can try benchmark on
> the code and tell us how it works when the loop is unrolled 9 times.

Sure, but it would be surprising on modern processor architectures to
find a case where unrolling more than 8 times helps. I suppose if
symbolic interpretation handles straightline code and not loops,
you could get an advantage :-)