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gh-134584: Eliminate redundant refcounting from _STORE_SUBSCR_DICT (GH-142712)

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Co-authored-by: Ken Jin <kenjin4096@gmail.com>
This commit is contained in:
Donghee Na 2025-12-16 01:42:32 +09:00 • committed by GitHub
parent 872ab51f32
commit abaaeee6a0
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GPG key ID: B5690EEEBB952194
9 changed files with 74 additions and 23 deletions
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20
Python/executor_cases.c.h generated
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@ -5765,12 +5765,13 @@
break;
}
case _STORE_SUBSCR_DICT_r30: {
case _STORE_SUBSCR_DICT_r31: {
CHECK_CURRENT_CACHED_VALUES(3);
assert(WITHIN_STACK_BOUNDS_WITH_CACHE());
_PyStackRef sub;
_PyStackRef dict_st;
_PyStackRef value;
_PyStackRef st;
_PyStackRef _stack_item_0 = _tos_cache0;
_PyStackRef _stack_item_1 = _tos_cache1;
_PyStackRef _stack_item_2 = _tos_cache2;
@ -5790,19 +5791,22 @@
PyStackRef_AsPyObjectSteal(sub),
PyStackRef_AsPyObjectSteal(value));
stack_pointer = _PyFrame_GetStackPointer(frame);
stack_pointer += -3;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyStackRef_CLOSE(dict_st);
stack_pointer = _PyFrame_GetStackPointer(frame);
if (err) {
stack_pointer += -3;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyStackRef_CLOSE(dict_st);
stack_pointer = _PyFrame_GetStackPointer(frame);
SET_CURRENT_CACHED_VALUES(0);
JUMP_TO_ERROR();
}
_tos_cache0 = PyStackRef_ZERO_BITS;
st = dict_st;
_tos_cache0 = st;
_tos_cache1 = PyStackRef_ZERO_BITS;
_tos_cache2 = PyStackRef_ZERO_BITS;
SET_CURRENT_CACHED_VALUES(0);
SET_CURRENT_CACHED_VALUES(1);
stack_pointer += -3;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
assert(WITHIN_STACK_BOUNDS_WITH_CACHE());
break;
}