Specialize FOR_ITER opcode #142
Description
Currently we make an indirect call to iter->ob_type->tp_iternext, we should
specialize this for lists and tuples (and maybe dicts and sets, those would
need extensive benchmarking).
Eventually we'll want to make it so iterating over a known type for loop
doesn't even allocate an iterator, since it never under any circumstances
escapes the frame, for now a good start would be just inlining the body of
{list, tuple}iter_next
Original issue reported on code.google.com by alex.gay...@gmail.com on 22 Feb 2010 at 6:20