greg/cpython
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

gh-132643: use atomic load for dict in specializer (#132653)

Browse Source
This commit is contained in:
Kumar Aditya
2025-04-18 15:06:27 +05:30
committed by GitHub
parent 80295a8f9b
commit f3d877a27a
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
Python/specialize.c
View File

@@ -1641,7 +1641,8 @@ specialize_attr_loadclassattr(PyObject *owner, _Py_CODEUNIT *instr,
specialize(instr, is_method ? LOAD_ATTR_METHOD_NO_DICT : LOAD_ATTR_NONDESCRIPTOR_NO_DICT);
}
else if (is_method) {
PyObject *dict = *(PyObject **) ((char *)owner + dictoffset);
PyObject **addr = (PyObject **)((char *)owner + dictoffset);
PyObject *dict = FT_ATOMIC_LOAD_PTR_ACQUIRE(*addr);
if (dict) {
SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_NOT_MANAGED_DICT);
return 0;