https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98299
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2021-01-04
Ever confirmed|0 |1
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Btw for the similar division pattern kernel folks once complained ;) But yes,
confirmed. SCCP is doing such transform usually but we don't do it because
we consider the replacement
(n_2(D) + -45) + (int) (((unsigned int) n_2(D) + 4294967251) / 45) * -45
too expensive (guess the cast makes recognizing this as modulo not valid).
