Florent DEFAY <spira.inhabitant@xxxxxxxxx> writes: > Then I sometimes get valid code like: > move r1,-(r0) > move r1,-2(r0) > move r2,r0 > > But only with optimization options. Auto-increment/decrement addressing is only introduced when optimizing. > Moreover, the previous example would be better coded with: > move r1,-(r0) > move r1,-(r0) > move r2,r0 Yeah, the auto-increment/decrement optimizations aren't all that good in gcc, because they don't much matter for most popular processors. The place to start looking is auto-inc-dec.c. Ian
