Guido van Rossum wrote:
> What's exasperating to me about this whole discussion is that nobody has
> shown any reason why this kind of code would be occurring in user code.
> STORE_FAST x LOAD_FAST x seems that it must come from a user writing
> x = x
I think that would be LOAD_FAST(x) STORE_FAST(x). STORE_FAST(x) LOAD_FAST(x)
could be caused by something like this:
def f():
x = …
y = x
Presumably this could be replaced with DUP_TOP() STORE_FAST(x)? But I don’t
know if that’s any faster. It does require more stack space…
> Are we just a solution (a clever peephole
> trick) looking for a problem?
It seems so.
Brandt
_______________________________________________
Python-Dev mailing list -- python-dev@python.org
To unsubscribe send an email to python-dev-le...@python.org
https://mail.python.org/mailman3/lists/python-dev.python.org/
Message archived at
https://mail.python.org/archives/list/python-dev@python.org/message/XGFBCVDIEXEBKFGUOHSXJD3GKO7IAYLM/
Code of Conduct: http://python.org/psf/codeofconduct/
