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GH-102300: Reuse objects with refcount == 1 in float specialized binary ops. (GH-102301)

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Mark Shannon 2023-03-13 10:34:54 +00:00 • committed by GitHub
parent 78e4e6c3d7
commit 233e32f936
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4 changed files with 27 additions and 24 deletions
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20
Python/ceval_macros.h
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@ -350,3 +350,23 @@ GETITEM(PyObject *v, Py_ssize_t i) {
#define KWNAMES_LEN() \
(kwnames == NULL ? 0 : ((int)PyTuple_GET_SIZE(kwnames)))
#define DECREF_INPUTS_AND_REUSE_FLOAT(left, right, dval, result) \
do { \
if (Py_REFCNT(left) == 1) { \
((PyFloatObject *)left)->ob_fval = (dval); \
_Py_DECREF_SPECIALIZED(right, _PyFloat_ExactDealloc);\
result = (left); \
} \
else if (Py_REFCNT(right) == 1) {\
((PyFloatObject *)right)->ob_fval = (dval); \
_Py_DECREF_NO_DEALLOC(left); \
result = (right); \
}\
else { \
result = PyFloat_FromDouble(dval); \
if ((result) == NULL) goto error; \
_Py_DECREF_NO_DEALLOC(left); \
_Py_DECREF_NO_DEALLOC(right); \
} \
} while (0)