[Python-Dev] Re: opcode performance measurements (original) (raw)

Skip Montanaro skip@pobox.com
Fri, 1 Feb 2002 08:51:25 -0600

It just occurred to me that my LOAD_GLOBAL/LOAD_ATTR eliding scheme can't work, since LOAD_ATTR calls PyObject_GetAttr, which can wind up calling getattr, which is free to inflict all sorts of side effects on the attribute lookup. PEP 267 doesn't appear to be similarly affected, assuming it can conclude that LOAD_GLOBAL is actually loading a module object. (Can it?) LOAD_GLOBAL alone shouldn't be a problem, since all that does is call PyDict_GetItem for globals and builtins.

damn...

Skip