[Bug target/48510] Does not vectorize loops involving casts from floating point to unsigned integer types

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48510

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-*-*, i?86-*-*
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |missed-optimization
   Last reconfirmed|                            |2011.04.08 10:02:15
          Component|c                           |target
     Ever Confirmed|0                           |1
            Summary|Does not vectorize loops    |Does not vectorize loops
                   |involving casts from        |involving casts from
                   |floating point to integer   |floating point to unsigned
                   |types                       |integer types
           Severity|normal                      |enhancement

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-04-08 10:02:15 UTC ---
There are no conversions to unsigned.  For scalar code we work around this
by biasing the input/output, but there is no vectorized version for this
available (yet).