[Bug tree-optimization/47860] is vectorization of "condition in nested loop" supported

["vincenzo.innocente at cern dot ch" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47860

--- Comment #3 from vincenzo Innocente <vincenzo.innocente at cern dot ch> 2011-02-24 08:24:31 UTC ---
Thanks Ira for the quick answer.
For what concern 
if (N <= 0)
that was the reason to use "unsigned int" which apparently cause vectorization
not to work.

As we are on the subject:
do you plan to support autovectorization of idioms such "location of max"?
such as

float const * lmin2(float const * __restrict__ b, float const * __restrict__ e)
{
 float const * ret = b++;
 float amin = *(ret);
 for(;b!=e; ++b)
   if (amin>(*b)) {
     ret = b;
     amin = *ret;
 }
 return ret;
}

or equivalent.
It is used very often (for instance in pivoting code).

vincenzo