https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89163
--- Comment #4 from Kang-Che Sung <Explorer09 at gmail dot com> --- (In reply to Xi Ruoyao from comment #2) > *** Bug 114406 has been marked as a duplicate of this bug. *** I can't say bug 114406 is an exact duplicate of this one. Although my report mainly addresses right shift, I also mentioned division, modulo and multiplication. These can also be optimized where the signedness of the operations do not matter.
