https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109393
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to manolis.tsamis from comment #4) > Given the original transform it should be valid to propagate the constant > addition through the cast? Yes. Note doing so loses information, we know i + 1 doesn't overflow (undefined behavior). Widening preserves this knowledge I think, but if just an unsigned conversion would be propagated it would be lost.
