[Bug tree-optimization/127080] optimize `a % b` into `a - b` if it is known that a >= b && a <= b*2; (there is a selection case too)

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127080

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

           What    |Removed                     |Added
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           Severity|normal                      |enhancement
           Keywords|                            |missed-optimization