[Bug target/100378] [9/10/11/12 Regression] arm64: lsl + asr used instead of sxth

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100378

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[Regression 9/10/11/12]     |[9/10/11/12 Regression]
                   |arm64: lsl + asr used       |arm64: lsl + asr used
                   |instead of sxth             |instead of sxth
   Target Milestone|---                         |12.0
           Keywords|                            |missed-optimization