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gh-122974: Suppress GCC array bound warnings in free-threaded build #123071

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Merged
merged 1 commit into from
Aug 17, 2024
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gh-122974: Suppress GCC array bound warnings in free-threaded build #123071

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12 changes: 12 additions & 0 deletions Include/internal/pycore_object.h
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Original file line number Diff line number Diff line change
Expand Up @@ -301,6 +301,14 @@ _Py_INCREF_TYPE(PyTypeObject *type)
return;
}

// gh-122974: GCC 11 warns about the access to PyHeapTypeObject fields when
// _Py_INCREF_TYPE() is called on a statically allocated type. The
// _PyType_HasFeature check above ensures that the type is a heap type.
#if defined(__GNUC__) && __GNUC__ >= 11
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Warray-bounds"
#endif

_PyThreadStateImpl *tstate = (_PyThreadStateImpl *)_PyThreadState_GET();
PyHeapTypeObject *ht = (PyHeapTypeObject *)type;

Expand All @@ -319,6 +327,10 @@ _Py_INCREF_TYPE(PyTypeObject *type)
// It handles the unique_id=-1 case to keep the inlinable function smaller.
_PyType_IncrefSlow(ht);
}

#if defined(__GNUC__) && __GNUC__ >= 11
# pragma GCC diagnostic pop
#endif
}

static inline void
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