[issue26219] implement per-opcode cache in ceval

[STINNER Victor]

STINNER Victor <victor.stinner at gmail.com> added the comment:

> Would it be OK if we add this to 3.7beta2?

IMHO we need more time than beta1=>beta2 window to review properly the design, test the implementation, fix any potential regression, etc.

Such change is perfect for the *start of a development cycle, but IMHO it's bad when are close to the *end*.

beta1=>final is supposed to only be made of bugfixes, not introducing new bugs... (I bet that adding any feature fatally introduces new bugs)

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<https://bugs.python.org/issue26219>
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