[Bug rtl-optimization/42589] bswap optimization does not work for 32bit (but for 64bit) on 64bit registers

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2010-01-03 11:34 -------
Because with 32bit we do not have a 64bit bswap instruction and tmp is 64bit.
What would you expect here?


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
           Keywords|                            |missed-optimization
            Summary|bswap optimization does not |bswap optimization does not
                   |work for 32bit (but for     |work for 32bit (but for
                   |64bit)                      |64bit) on 64bit registers


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42589