[Bug target/46209] pmovmskb, useless sign extension

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46209

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |66369
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-07-26
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
foo64:
.LFB533:
        .cfi_startproc
        pmovmskb        %xmm0, %eax
        movzbl  %al, %eax
        ret

The 128 one was fixed with PR 66369.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66369
[Bug 66369] gcc 4.8.3/5.1.0 miss optimisation with vpmovmskb