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gh-115999: Use light-weight lock for UNPACK_SEQUENCE_LIST (gh-127514)

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Donghee Na 2024-12-03 00:14:40 +09:00 • committed by GitHub
parent 3e812253ab
commit 7c2bd9b226
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5 changed files with 14 additions and 44 deletions
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19
Python/generated_cases.c.h generated
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@ -8040,18 +8040,9 @@
values = &stack_pointer[-1];
PyObject *seq_o = PyStackRef_AsPyObjectBorrow(seq);
DEOPT_IF(!PyList_CheckExact(seq_o), UNPACK_SEQUENCE);
#ifdef Py_GIL_DISABLED
PyCriticalSection cs;
_PyFrame_SetStackPointer(frame, stack_pointer);
PyCriticalSection_Begin(&cs, seq_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
#endif
DEOPT_IF(!LOCK_OBJECT(seq_o), UNPACK_SEQUENCE);
if (PyList_GET_SIZE(seq_o) != oparg) {
#ifdef Py_GIL_DISABLED
_PyFrame_SetStackPointer(frame, stack_pointer);
PyCriticalSection_End(&cs);
stack_pointer = _PyFrame_GetStackPointer(frame);
#endif
UNLOCK_OBJECT(seq_o);
DEOPT_IF(true, UNPACK_SEQUENCE);
}
STAT_INC(UNPACK_SEQUENCE, hit);
@ -8059,11 +8050,7 @@
for (int i = oparg; --i >= 0; ) {
*values++ = PyStackRef_FromPyObjectNew(items[i]);
}
#ifdef Py_GIL_DISABLED
_PyFrame_SetStackPointer(frame, stack_pointer);
PyCriticalSection_End(&cs);
stack_pointer = _PyFrame_GetStackPointer(frame);
#endif
UNLOCK_OBJECT(seq_o);
PyStackRef_CLOSE(seq);
stack_pointer += -1 + oparg;
assert(WITHIN_STACK_BOUNDS());