[Python-Dev] Re: Optimizing literal comparisons and contains

2021年11月30日 00:52:37 -0800

If someone wants to experiment such optimization, there is no need to
modify the Python internal optimizer, it can be done externally:
https://faster-cpython.readthedocs.io/ast_optimizer.html 
For example, I implemented many optimizations like constant
propagation and loop unrolling in my old AST fatoptimizer project:
https://github.com/vstinner/fatoptimizer/blob/master/doc/optimizations.rst
Optimizing "2 < 3" becomes more interesting when other optimizations
are implemented, like constant propagation or loop unrolling. So "x=2;
if x < 10: ..." can be optimized for example.
Victor
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