[Python-Dev] Possible optimization for LOAD_FAST ?

Ethan Furman ethan at stoneleaf.us
Fri Dec 31 16:55:36 CET 2010


Cesare Di Mauro wrote:
 >
> 2010/12/29 "Martin v. Löwis" wrote:
 >>
>> Am 28.12.2010 18:08, schrieb Lukas Lueg:
>>> Also, the load_fast in lne 22 to reference x could be taken out of the
 >>> loop as x will always point to the same object....
>> 
>>  That's not true; a debugger may change the value of x.
> 
> Another example. I can totally remove the variable i, just using the 
> stack, so a debugger (or, in general, having the tracing enabled) cannot 
> even find something to change about it.

-1

Debugging is challenging enough as it is -- why would you want to make 
it even more difficult?

~Ethan~


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