On 24 Sep., 18:25, "D. S. McNeil" <dsm...@gmail.com> wrote: > Leif wrote: > > Any reasonable compiler does constant folding and loop-invariant code > > motion; even Python's byte-code compiler should do that. > > Almost none is done. Only the most trivial cases are handled. [...]
OMG. That's why I said "reasonable" and "should"... ;-) [Perhaps Python does some JIT peephole optimization, since dynamic binding of functions / methods (including operators) is always a problem, i.e., someone could actually redefine e.g. '/'. Although interestingly Python apparently breaks that in one of your examples, since it evaluates 2+3 at *compile* time.] -leif -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
