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gh-100239: specialize BINARY_OP/SUBSCR for list-slice (#132626)

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Irit Katriel 2025-05-01 11:28:52 +01:00 • committed by GitHub
parent 3831752689
commit 5529213d4e
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15 changed files with 552 additions and 354 deletions
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46
Python/executor_cases.c.h generated
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@ -740,6 +740,17 @@
break;
}
case _GUARD_TOS_SLICE: {
_PyStackRef tos;
tos = stack_pointer[-1];
PyObject *o = PyStackRef_AsPyObjectBorrow(tos);
if (!PySlice_Check(o)) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
break;
}
case _TO_BOOL_LIST: {
_PyStackRef value;
_PyStackRef res;
@ -1324,6 +1335,41 @@
break;
}
case _BINARY_OP_SUBSCR_LIST_SLICE: {
_PyStackRef sub_st;
_PyStackRef list_st;
_PyStackRef res;
sub_st = stack_pointer[-1];
list_st = stack_pointer[-2];
PyObject *sub = PyStackRef_AsPyObjectBorrow(sub_st);
PyObject *list = PyStackRef_AsPyObjectBorrow(list_st);
assert(PySlice_Check(sub));
assert(PyList_CheckExact(list));
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = _PyList_SliceSubscript(list, sub);
stack_pointer = _PyFrame_GetStackPointer(frame);
if (res_o == NULL) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
STAT_INC(BINARY_OP, hit);
res = PyStackRef_FromPyObjectSteal(res_o);
STAT_INC(BINARY_OP, hit);
_PyFrame_SetStackPointer(frame, stack_pointer);
_PyStackRef tmp = list_st;
list_st = res;
stack_pointer[-2] = list_st;
PyStackRef_CLOSE(tmp);
tmp = sub_st;
sub_st = PyStackRef_NULL;
stack_pointer[-1] = sub_st;
PyStackRef_CLOSE(tmp);
stack_pointer = _PyFrame_GetStackPointer(frame);
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
break;
}
case _BINARY_OP_SUBSCR_STR_INT: {
_PyStackRef sub_st;
_PyStackRef str_st;