https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102131
--- Comment #4 from bin cheng <amker at gcc dot gnu.org> --- (In reply to Jiu Fu Guo from comment #3) > The issue may come from 'iv0 cmp iv1' transform: > > if (c<b) exit-loop > -->if (c>=b) in-loop > -->if (b<=c) in-loop > > c: {4, +, 3} > b: {1, +, 1} > > if ({1, +, 1} <= {4, +, 3}) > ==> if ({1,+,-2} <= {4,+,0}) //// here, error occur > ==> if ({1,+,-2} < {5,+,0}) le-->lt So this duplicates to PR100740? Thanks