[Bug tree-optimization/123109] `a >> (bits-1) != 0` is not optimized to `a < 0` by match

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123109

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

           What    |Removed                     |Added
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           Assignee|pinskia at gcc dot gnu.org         |pzheng at gcc dot gnu.org

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Pengxuan is working on this one.