[Bug rtl-optimization/78085] extra sign extend if used to store in 32bit and return 64bit and the upper bits are known to be zeroed.

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78085

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |rtl-optimization
   Last reconfirmed|                            |2021-08-07
     Ever confirmed|0                           |1
            Summary|Unexpected cltq instruction |extra sign extend if used
                   |on Linux x86-64 for         |to store in 32bit and
                   |conversion of positive int  |return 64bit and the upper
                   |to long                     |bits are known to be
                   |                            |zeroed.
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |missed-optimization
           Severity|normal                      |enhancement

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.