[Bug target/65010] ppc backend generates unnecessary signed extension

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65010

David Edelsohn <dje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|powerpc64le                 |powerpc64-*-*
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-21
                 CC|                            |dje at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #4 from David Edelsohn <dje at gcc dot gnu.org> ---
GCC generates lots of extraneous sign-extensions and zero-extensions.  There
are ad-hoc passes in GCC that try to eliminate some.  Ken Zadeck has proposed a
general solution.