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gh-99300: Use Py_NewRef() in Python/ceval.c (#99318)
Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in Python/ceval.c and related files.
This commit is contained in:
Victor Stinner
GitHub
parent
231d83b724
commit
2e343fc465
3 changed files with 68 additions and 128 deletions
86
Python/generated_cases.c.h
generated
86
Python/generated_cases.c.h
generated
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@ -932,10 +932,9 @@
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PUSH(value);
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DISPATCH();
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}
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Py_INCREF(exc_value);
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PyObject *exc_type = Py_NewRef(Py_TYPE(exc_value));
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PyObject *exc_traceback = PyException_GetTraceback(exc_value);
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_PyErr_Restore(tstate, exc_type, exc_value, exc_traceback);
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_PyErr_Restore(tstate, exc_type, Py_NewRef(exc_value), exc_traceback);
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goto exception_unwind;
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}
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@ -973,8 +972,8 @@
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}
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assert(PyExceptionInstance_Check(error));
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SET_TOP(error);
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PyException_SetCause(error, exc);
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Py_INCREF(exc);
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PyException_SetCause(error, Py_NewRef(exc));
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// Steal exc reference, rather than Py_NewRef+Py_DECREF
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PyException_SetContext(error, exc);
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Py_DECREF(message);
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}
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@ -983,8 +982,7 @@
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TARGET(LOAD_ASSERTION_ERROR) {
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PyObject *value = PyExc_AssertionError;
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Py_INCREF(value);
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PUSH(value);
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PUSH(Py_NewRef(value));
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DISPATCH();
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}
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@ -1343,8 +1341,7 @@
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JUMPBY(INLINE_CACHE_ENTRIES_LOAD_GLOBAL);
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STAT_INC(LOAD_GLOBAL, hit);
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STACK_GROW(push_null+1);
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Py_INCREF(res);
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SET_TOP(res);
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SET_TOP(Py_NewRef(res));
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DISPATCH();
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}
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@ -1368,8 +1365,7 @@
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JUMPBY(INLINE_CACHE_ENTRIES_LOAD_GLOBAL);
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STAT_INC(LOAD_GLOBAL, hit);
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STACK_GROW(push_null+1);
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Py_INCREF(res);
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SET_TOP(res);
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SET_TOP(Py_NewRef(res));
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DISPATCH();
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}
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@ -1449,8 +1445,7 @@
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format_exc_unbound(tstate, frame->f_code, oparg);
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goto error;
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}
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Py_INCREF(value);
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PUSH(value);
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PUSH(Py_NewRef(value));
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DISPATCH();
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}
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@ -1472,8 +1467,7 @@
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assert(oparg == co->co_nfreevars);
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for (int i = 0; i < oparg; ++i) {
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PyObject *o = PyTuple_GET_ITEM(closure, i);
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Py_INCREF(o);
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frame->localsplus[offset + i] = o;
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frame->localsplus[offset + i] = Py_NewRef(o);
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}
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DISPATCH();
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}
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@ -1977,9 +1971,8 @@
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SET_TOP(NULL);
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int shrink_stack = !(oparg & 1);
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STACK_SHRINK(shrink_stack);
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Py_INCREF(name);
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new_frame->localsplus[0] = owner;
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new_frame->localsplus[1] = name;
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new_frame->localsplus[1] = Py_NewRef(name);
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for (int i = 2; i < code->co_nlocalsplus; i++) {
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new_frame->localsplus[i] = NULL;
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}
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@ -2223,8 +2216,7 @@
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PyObject *left = TOP();
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int res = Py_Is(left, right) ^ oparg;
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PyObject *b = res ? Py_True : Py_False;
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Py_INCREF(b);
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SET_TOP(b);
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SET_TOP(Py_NewRef(b));
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Py_DECREF(left);
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Py_DECREF(right);
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DISPATCH();
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@ -2240,8 +2232,7 @@
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goto error;
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}
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PyObject *b = (res^oparg) ? Py_True : Py_False;
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Py_INCREF(b);
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PUSH(b);
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PUSH(Py_NewRef(b));
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DISPATCH();
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}
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@ -2524,8 +2515,7 @@
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}
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else {
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// Failure!
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Py_INCREF(Py_None);
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SET_TOP(Py_None);
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SET_TOP(Py_NewRef(Py_None));
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}
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Py_DECREF(subject);
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DISPATCH();
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@ -2535,8 +2525,7 @@
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PyObject *subject = TOP();
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int match = Py_TYPE(subject)->tp_flags & Py_TPFLAGS_MAPPING;
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PyObject *res = match ? Py_True : Py_False;
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Py_INCREF(res);
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PUSH(res);
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PUSH(Py_NewRef(res));
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PREDICT(POP_JUMP_IF_FALSE);
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DISPATCH();
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}
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@ -2545,8 +2534,7 @@
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PyObject *subject = TOP();
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int match = Py_TYPE(subject)->tp_flags & Py_TPFLAGS_SEQUENCE;
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PyObject *res = match ? Py_True : Py_False;
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Py_INCREF(res);
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PUSH(res);
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PUSH(Py_NewRef(res));
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PREDICT(POP_JUMP_IF_FALSE);
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DISPATCH();
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}
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@ -2649,8 +2637,7 @@
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if (seq) {
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if (it->it_index < PyList_GET_SIZE(seq)) {
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PyObject *next = PyList_GET_ITEM(seq, it->it_index++);
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Py_INCREF(next);
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PUSH(next);
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PUSH(Py_NewRef(next));
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JUMPBY(INLINE_CACHE_ENTRIES_FOR_ITER);
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DISPATCH();
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}
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@ -2698,8 +2685,7 @@
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JUMPBY(INLINE_CACHE_ENTRIES_FOR_ITER + oparg);
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assert(_Py_OPCODE(*next_instr) == END_FOR);
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frame->prev_instr = next_instr - 1;
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Py_INCREF(Py_None);
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_PyFrame_StackPush(gen_frame, Py_None);
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_PyFrame_StackPush(gen_frame, Py_NewRef(Py_None));
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gen->gi_frame_state = FRAME_EXECUTING;
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gen->gi_exc_state.previous_item = tstate->exc_info;
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tstate->exc_info = &gen->gi_exc_state;
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@ -2818,12 +2804,10 @@
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SET_TOP(exc_info->exc_value);
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}
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else {
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Py_INCREF(Py_None);
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SET_TOP(Py_None);
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SET_TOP(Py_NewRef(Py_None));
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}
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Py_INCREF(value);
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PUSH(value);
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PUSH(Py_NewRef(value));
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assert(PyExceptionInstance_Check(value));
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exc_info->exc_value = value;
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DISPATCH();
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@ -2848,8 +2832,7 @@
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PyObject *res = read_obj(cache->descr);
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assert(res != NULL);
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assert(_PyType_HasFeature(Py_TYPE(res), Py_TPFLAGS_METHOD_DESCRIPTOR));
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Py_INCREF(res);
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SET_TOP(res);
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SET_TOP(Py_NewRef(res));
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PUSH(self);
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JUMPBY(INLINE_CACHE_ENTRIES_LOAD_ATTR);
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DISPATCH();
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@ -2876,8 +2859,7 @@
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PyObject *res = read_obj(cache->descr);
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assert(res != NULL);
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assert(_PyType_HasFeature(Py_TYPE(res), Py_TPFLAGS_METHOD_DESCRIPTOR));
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Py_INCREF(res);
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SET_TOP(res);
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SET_TOP(Py_NewRef(res));
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PUSH(self);
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JUMPBY(INLINE_CACHE_ENTRIES_LOAD_ATTR);
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DISPATCH();
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@ -2895,8 +2877,7 @@
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PyObject *res = read_obj(cache->descr);
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assert(res != NULL);
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assert(_PyType_HasFeature(Py_TYPE(res), Py_TPFLAGS_METHOD_DESCRIPTOR));
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Py_INCREF(res);
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SET_TOP(res);
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SET_TOP(Py_NewRef(res));
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PUSH(self);
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JUMPBY(INLINE_CACHE_ENTRIES_LOAD_ATTR);
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DISPATCH();
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@ -2918,8 +2899,7 @@
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PyObject *res = read_obj(cache->descr);
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assert(res != NULL);
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assert(_PyType_HasFeature(Py_TYPE(res), Py_TPFLAGS_METHOD_DESCRIPTOR));
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Py_INCREF(res);
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SET_TOP(res);
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SET_TOP(Py_NewRef(res));
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PUSH(self);
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JUMPBY(INLINE_CACHE_ENTRIES_LOAD_ATTR);
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DISPATCH();
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@ -2930,12 +2910,10 @@
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PyObject *function = PEEK(oparg + 1);
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DEOPT_IF(Py_TYPE(function) != &PyMethod_Type, CALL);
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STAT_INC(CALL, hit);
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PyObject *meth = ((PyMethodObject *)function)->im_func;
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PyObject *self = ((PyMethodObject *)function)->im_self;
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Py_INCREF(meth);
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Py_INCREF(self);
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PEEK(oparg + 1) = self;
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PEEK(oparg + 2) = meth;
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PEEK(oparg + 1) = Py_NewRef(self);
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PyObject *meth = ((PyMethodObject *)function)->im_func;
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PEEK(oparg + 2) = Py_NewRef(meth);
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Py_DECREF(function);
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GO_TO_INSTRUCTION(CALL_PY_EXACT_ARGS);
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}
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@ -2965,12 +2943,10 @@
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is_meth = is_method(stack_pointer, oparg);
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PyObject *function = PEEK(oparg + 1);
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if (!is_meth && Py_TYPE(function) == &PyMethod_Type) {
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PyObject *meth = ((PyMethodObject *)function)->im_func;
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PyObject *self = ((PyMethodObject *)function)->im_self;
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Py_INCREF(meth);
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Py_INCREF(self);
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PEEK(oparg+1) = self;
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PEEK(oparg+2) = meth;
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PEEK(oparg+1) = Py_NewRef(self);
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PyObject *meth = ((PyMethodObject *)function)->im_func;
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PEEK(oparg+2) = Py_NewRef(meth);
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Py_DECREF(function);
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is_meth = 1;
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}
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@ -3093,8 +3069,7 @@
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for (int i = argcount; i < code->co_argcount; i++) {
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PyObject *def = PyTuple_GET_ITEM(func->func_defaults,
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i - minargs);
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Py_INCREF(def);
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new_frame->localsplus[i] = def;
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new_frame->localsplus[i] = Py_NewRef(def);
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}
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for (int i = code->co_argcount; i < code->co_nlocalsplus; i++) {
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new_frame->localsplus[i] = NULL;
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@ -3724,8 +3699,7 @@
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TARGET(COPY) {
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assert(oparg != 0);
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PyObject *peek = PEEK(oparg);
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Py_INCREF(peek);
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PUSH(peek);
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PUSH(Py_NewRef(peek));
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DISPATCH();
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}
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