[Bug tree-optimization/125641] `a>>signbit | a` is just `max<a, -1>`

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125641

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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   Target Milestone|---                         |17.0