[Bug target/33049] [avr] bit extraction non optimal, inversing logic solves problem

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33049

Georg-Johann Lay <gjl at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot       |gjl at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #17 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-06-20 10:58:59 UTC ---
Created attachment 24563
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24563
pr33049.diff

Patch also covering PR49446.

Tested without regression against SVN 175201

    PR target/33049
    * config/avr/avr.md (extzv): New expander.
    (*extzv, *extzv.qihi1, *extzv.qihi2): New insn-and-split.