[issue29464] Specialize FASTCALL for functions with positional-only parameters

[STINNER Victor]

STINNER Victor added the comment:

When I worked on FASTCALL, I wasn't sure that the whole project was worth
it. Now I am more confident that it makes function calls faster:
https://haypo.github.io/fastcall-microbenchmarks.html

Stefan, Serhiy: would it be a good idea to make _PyObject_FastCall() and
_PyObject_FastCallKeywords(), or also _PyObject_FastCallDict(), public? I
expect complains from PyPy who will have to support METH_FASTCALL as well
:-)

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29464>
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