Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:

Thank you Steve. Yes, this is what I meant. "if a and b" is so common that we 
sacrifice literal translation for the sake of performance.

"if" with an empty block looks pretty uncommon to me. It is not worth to 
optimize this case specially (especially if it changes semantic). What are real 
world examples for which it makes sense to replace POP_JUMP_IF_FALSE with 
POP_TOP?

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nosy: +gvanrossum

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<https://bugs.python.org/issue42899>
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