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Add specialization stats for FOR_ITER. (GH-31079)

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Mark Shannon 2022-02-02 15:56:47 +00:00 • committed by GitHub
parent f66c857572
commit 0d05da1fbf
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3 changed files with 74 additions and 1 deletions
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Python/ceval.c
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@ -4212,6 +4212,11 @@ handle_eval_breaker:
PREDICTED(FOR_ITER);
/* before: [iter]; after: [iter, iter()] *or* [] */
PyObject *iter = TOP();
#ifdef Py_STATS
extern int _PySpecialization_ClassifyIterator(PyObject *);
_py_stats.opcode_stats[FOR_ITER].specialization.failure++;
_py_stats.opcode_stats[FOR_ITER].specialization.failure_kinds[_PySpecialization_ClassifyIterator(iter)]++;
#endif
PyObject *next = (*Py_TYPE(iter)->tp_iternext)(iter);
if (next != NULL) {
PUSH(next);