[issue14385] Support other types than dict for __builtins__

[STINNER Victor]

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

Oops, patch version 2 was not correct: I forgot a { ... } in ceval.c.

New patch fixing this issue but leaves also the LOAD_GLOBAL code unchanged : keep the goto and don't try to factorize the 3 last instructions. LOAD_GLOBAL is really critical in performance.

With patch version 3, the overall overhead is +0.4% according to pybench.

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Added file: http://bugs.python.org/file25230/builtins-3.patch

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