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GH-113464: Add a JIT backend for tier 2 (GH-113465)

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Add an option (--enable-experimental-jit for configure-based builds
or --experimental-jit for PCbuild-based ones) to build an
*experimental* just-in-time compiler, based on copy-and-patch (https://fredrikbk.com/publications/copy-and-patch.pdf).

See Tools/jit/README.md for more information on how to install the required build-time tooling.
This commit is contained in:
Brandt Bucher 2024-01-28 18:48:48 -08:00 • committed by GitHub
parent f7c05d7ad3
commit f6d9e5926b
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29 changed files with 1738 additions and 5 deletions
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4
Include/internal/pycore_object.h
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@ -178,7 +178,7 @@ _Py_DECREF_SPECIALIZED(PyObject *op, const destructor destruct)
}
_Py_DECREF_STAT_INC();
#ifdef Py_REF_DEBUG
_Py_DEC_REFTOTAL(_PyInterpreterState_GET());
_Py_DEC_REFTOTAL(PyInterpreterState_Get());
#endif
if (--op->ob_refcnt != 0) {
assert(op->ob_refcnt > 0);
@ -199,7 +199,7 @@ _Py_DECREF_NO_DEALLOC(PyObject *op)
}
_Py_DECREF_STAT_INC();
#ifdef Py_REF_DEBUG
_Py_DEC_REFTOTAL(_PyInterpreterState_GET());
_Py_DEC_REFTOTAL(PyInterpreterState_Get());
#endif
op->ob_refcnt--;
#ifdef Py_DEBUG