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bpo-44525: Copy free variables in bytecode to allow calls to inner functions to be specialized (GH-29595)

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* Make internal APIs that take PyFrameConstructor take a PyFunctionObject instead.

* Add reference to function to frame, borrow references to builtins and globals.

* Add COPY_FREE_VARS instruction to allow specialization of calls to inner functions.
This commit is contained in:
Mark Shannon
2021-11-23 09:53:24 +00:00
committed by GitHub
parent d82f2caf94
commit 135cabd328
25 changed files with 268 additions and 156 deletions
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6
Objects/call.c
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@@ -383,16 +383,16 @@ _PyFunction_Vectorcall(PyObject *func, PyObject* const* stack,
size_t nargsf, PyObject *kwnames)
{
assert(PyFunction_Check(func));
PyFrameConstructor *f = PyFunction_AS_FRAME_CONSTRUCTOR(func);
PyFunctionObject *f = (PyFunctionObject *)func;
Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
assert(nargs >= 0);
PyThreadState *tstate = _PyThreadState_GET();
assert(nargs == 0 || stack != NULL);
if (((PyCodeObject *)f->fc_code)->co_flags & CO_OPTIMIZED) {
if (((PyCodeObject *)f->func_code)->co_flags & CO_OPTIMIZED) {
return _PyEval_Vector(tstate, f, NULL, stack, nargs, kwnames);
}
else {
return _PyEval_Vector(tstate, f, f->fc_globals, stack, nargs, kwnames);
return _PyEval_Vector(tstate, f, f->func_globals, stack, nargs, kwnames);
}
}