def S32.mul_ov.go
import bend-kit-int@0.2.0.0/int.bend as Intimport Base
649def S32.mul_ov.go(+a: U32, +b: U32, +r: U32) -> Bool & U32:
650 (Bool.or(Bool.and(Bool.not(U32.is_zero(b)),
651 Bool.not(U32.is_eq(S32.div(r, b), a))), S32.min_neg1(a, b)), r)