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GH-139922: Tail calling for MSVC (VS 2026) (GH-143068)

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Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Brandt Bucher <brandt@python.org>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
This commit is contained in:
Chris Eibl 2025-12-23 00:01:34 +01:00 • committed by GitHub
parent 665d2807a0
commit be3c131640
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GPG key ID: B5690EEEBB952194
12 changed files with 528 additions and 683 deletions
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57
Python/executor_cases.c.h generated
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@ -5965,9 +5965,9 @@
CHECK_CURRENT_CACHED_VALUES(0);
assert(WITHIN_STACK_BOUNDS_IGNORING_CACHE());
_PyStackRef bc;
PyObject *bc_o;
int err;
_PyFrame_SetStackPointer(frame, stack_pointer);
int err = PyMapping_GetOptionalItem(BUILTINS(), &_Py_ID(__build_class__), &bc_o);
PyObject *bc_o = _PyMapping_GetOptionalItem2(BUILTINS(), &_Py_ID(__build_class__), &err);
stack_pointer = _PyFrame_GetStackPointer(frame);
if (err < 0) {
SET_CURRENT_CACHED_VALUES(0);
@ -6812,17 +6812,17 @@
_PyStackRef _stack_item_0 = _tos_cache0;
oparg = CURRENT_OPARG();
class_dict_st = _stack_item_0;
PyObject *value_o;
PyObject *name;
PyObject *class_dict = PyStackRef_AsPyObjectBorrow(class_dict_st);
assert(class_dict);
assert(oparg >= 0 && oparg < _PyFrame_GetCode(frame)->co_nlocalsplus);
name = PyTuple_GET_ITEM(_PyFrame_GetCode(frame)->co_localsplusnames, oparg);
int err;
stack_pointer[0] = class_dict_st;
stack_pointer += 1;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
int err = PyMapping_GetOptionalItem(class_dict, name, &value_o);
PyObject* value_o = _PyMapping_GetOptionalItem2(class_dict, name, &err);
stack_pointer = _PyFrame_GetStackPointer(frame);
if (err < 0) {
SET_CURRENT_CACHED_VALUES(0);
@ -7339,7 +7339,6 @@
case _SETUP_ANNOTATIONS_r00: {
CHECK_CURRENT_CACHED_VALUES(0);
assert(WITHIN_STACK_BOUNDS_IGNORING_CACHE());
PyObject *ann_dict;
if (LOCALS() == NULL) {
_PyFrame_SetStackPointer(frame, stack_pointer);
_PyErr_Format(tstate, PyExc_SystemError,
@ -7348,8 +7347,9 @@
SET_CURRENT_CACHED_VALUES(0);
JUMP_TO_ERROR();
}
int err;
_PyFrame_SetStackPointer(frame, stack_pointer);
int err = PyMapping_GetOptionalItem(LOCALS(), &_Py_ID(__annotations__), &ann_dict);
PyObject* ann_dict = _PyMapping_GetOptionalItem2(LOCALS(), &_Py_ID(__annotations__), &err);
stack_pointer = _PyFrame_GetStackPointer(frame);
if (err < 0) {
SET_CURRENT_CACHED_VALUES(0);
@ -7631,15 +7631,19 @@
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg >> 2);
PyTypeObject *cls = (PyTypeObject *)class;
int method_found = 0;
stack_pointer[0] = global_super_st;
stack_pointer[1] = class_st;
stack_pointer[2] = self_st;
stack_pointer += 3;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *attr_o = _PySuper_Lookup(cls, self, name,
Py_TYPE(self)->tp_getattro == PyObject_GenericGetAttr ? &method_found : NULL);
stack_pointer = _PyFrame_GetStackPointer(frame);
PyObject *attr_o;
{
int *method_found_ptr = &method_found;
stack_pointer[0] = global_super_st;
stack_pointer[1] = class_st;
stack_pointer[2] = self_st;
stack_pointer += 3;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
attr_o = _PySuper_Lookup(cls, self, name,
Py_TYPE(self)->tp_getattro == PyObject_GenericGetAttr ? method_found_ptr : NULL);
stack_pointer = _PyFrame_GetStackPointer(frame);
}
if (attr_o == NULL) {
SET_CURRENT_CACHED_VALUES(0);
JUMP_TO_ERROR();
@ -11052,16 +11056,21 @@
}
assert(PyStackRef_IsTaggedInt(lasti));
(void)lasti;
PyObject *stack[5] = {NULL, PyStackRef_AsPyObjectBorrow(exit_self), exc, val_o, tb};
int has_self = !PyStackRef_IsNull(exit_self);
stack_pointer[0] = lasti;
stack_pointer[1] = _stack_item_1;
stack_pointer[2] = val;
stack_pointer += 3;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
PyObject* res_o;
{
PyObject *stack[5] = {NULL, PyStackRef_AsPyObjectBorrow(exit_self), exc, val_o, tb};
int has_self = !PyStackRef_IsNull(exit_self);
stack_pointer[0] = lasti;
stack_pointer[1] = _stack_item_1;
stack_pointer[2] = val;
stack_pointer += 3;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
res_o = PyObject_Vectorcall(exit_func_o, stack + 2 - has_self,
(3 + has_self) | PY_VECTORCALL_ARGUMENTS_OFFSET, NULL);
stack_pointer = _PyFrame_GetStackPointer(frame);
}
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = PyObject_Vectorcall(exit_func_o, stack + 2 - has_self,
(3 + has_self) | PY_VECTORCALL_ARGUMENTS_OFFSET, NULL);
Py_XDECREF(original_tb);
stack_pointer = _PyFrame_GetStackPointer(frame);
if (res_o == NULL) {