[Bug tree-optimization/49730] loop not vectorized if inside another loop

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49730

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |missed-optimization
   Last reconfirmed|                            |2011.07.13 11:23:16
                 CC|                            |irar at gcc dot gnu.org
     Ever Confirmed|0                           |1
           Severity|normal                      |enhancement

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-13 11:23:16 UTC ---
All inner loops are simply completely unrolled which eliminates the s array.

Then we end up with a loop with two reductions which cannot be vectorized
right now.