mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-07-25 20:24:11 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

GH-91095: Specialize calls to normal Python classes. (GH-99331)

Browse source
This commit is contained in:
Mark Shannon 2023-06-22 09:48:19 +01:00 • committed by GitHub
parent c01da2896a
commit 04492cbc9a
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
20 changed files with 511 additions and 189 deletions
Download patch file Download diff file Expand all files Collapse all files

63
Python/bytecodes.c
View file

@ -2685,6 +2685,7 @@ dummy_func(
CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS,
CALL_NO_KW_METHOD_DESCRIPTOR_NOARGS,
CALL_NO_KW_METHOD_DESCRIPTOR_FAST,
CALL_NO_KW_ALLOC_AND_ENTER_INIT,
};
// On entry, the stack is either
@ -2900,6 +2901,68 @@ dummy_func(
CHECK_EVAL_BREAKER();
}
inst(CALL_NO_KW_ALLOC_AND_ENTER_INIT, (unused/1, unused/2, null, callable, args[oparg] -- unused)) {
/* This instruction does the following:
* 1. Creates the object (by calling ``object.__new__``)
* 2. Pushes a shim frame to the frame stack (to cleanup after ``__init__``)
* 3. Pushes the frame for ``__init__`` to the frame stack
* */
assert(kwnames == NULL);
_PyCallCache *cache = (_PyCallCache *)next_instr;
DEOPT_IF(null != NULL, CALL);
DEOPT_IF(!PyType_Check(callable), CALL);
PyTypeObject *tp = (PyTypeObject *)callable;
DEOPT_IF(tp->tp_version_tag != read_u32(cache->func_version), CALL);
PyHeapTypeObject *cls = (PyHeapTypeObject *)callable;
PyFunctionObject *init = (PyFunctionObject *)cls->_spec_cache.init;
PyCodeObject *code = (PyCodeObject *)init->func_code;
DEOPT_IF(code->co_argcount != oparg+1, CALL);
DEOPT_IF(!_PyThreadState_HasStackSpace(tstate, code->co_framesize + _Py_InitCleanup.co_framesize), CALL);
STAT_INC(CALL, hit);
PyObject *self = _PyType_NewManagedObject(tp);
if (self == NULL) {
goto error;
}
Py_DECREF(tp);
if (_Py_EnterRecursivePy(tstate)) {
goto exit_unwind;
}
_PyInterpreterFrame *shim = _PyFrame_PushTrampolineUnchecked(
tstate, (PyCodeObject *)&_Py_InitCleanup, 1, 0);
assert(_PyCode_CODE((PyCodeObject *)shim->f_executable)[1].op.code == EXIT_INIT_CHECK);
/* Push self onto stack of shim */
Py_INCREF(self);
shim->localsplus[0] = self;
Py_INCREF(init);
_PyInterpreterFrame *init_frame = _PyFrame_PushUnchecked(tstate, init, oparg+1);
/* Copy self followed by args to __init__ frame */
init_frame->localsplus[0] = self;
for (int i = 0; i < oparg; i++) {
init_frame->localsplus[i+1] = args[i];
}
SKIP_OVER(INLINE_CACHE_ENTRIES_CALL);
frame->prev_instr = next_instr - 1;
frame->return_offset = 0;
STACK_SHRINK(oparg+2);
_PyFrame_SetStackPointer(frame, stack_pointer);
/* Link frames */
init_frame->previous = shim;
shim->previous = frame;
frame = cframe.current_frame = init_frame;
CALL_STAT_INC(inlined_py_calls);
goto start_frame;
}
inst(EXIT_INIT_CHECK, (should_be_none -- )) {
assert(STACK_LEVEL() == 2);
if (should_be_none != Py_None) {
PyErr_Format(PyExc_TypeError,
"__init__() should return None, not '%.200s'",
Py_TYPE(should_be_none)->tp_name);
goto error;
}
}
inst(CALL_BUILTIN_CLASS, (unused/1, unused/2, method, callable, args[oparg] -- res)) {
int is_meth = method != NULL;
int total_args = oparg;

4
Python/ceval.c
View file

@ -641,6 +641,8 @@ static const _Py_CODEUNIT _Py_INTERPRETER_TRAMPOLINE_INSTRUCTIONS[] = {
{ .op.code = RESUME, .op.arg = 0 }
};
extern const struct _PyCode_DEF(8) _Py_InitCleanup;
/* Disable unused label warnings. They are handy for debugging, even
if computed gotos aren't used. */
@ -746,7 +748,7 @@ resume_frame:
#ifdef LLTRACE
{
if (frame != &entry_frame) {
if (frame != &entry_frame && GLOBALS()) {
int r = PyDict_Contains(GLOBALS(), &_Py_ID(__lltrace__));
if (r < 0) {
goto exit_unwind;

3
Python/compile.c
View file

@ -825,6 +825,9 @@ stack_effect(int opcode, int oparg, int jump)
case JUMP_NO_INTERRUPT:
return 0;
case EXIT_INIT_CHECK:
return -1;
/* Exception handling pseudo-instructions */
case SETUP_FINALLY:
/* 0 in the normal flow.

230
Python/generated_cases.c.h generated
View file

@ -3765,7 +3765,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2698 "Python/bytecodes.c"
#line 2699 "Python/bytecodes.c"
int is_meth = method != NULL;
int total_args = oparg;
if (is_meth) {
@ -3859,7 +3859,7 @@
TARGET(CALL_BOUND_METHOD_EXACT_ARGS) {
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
#line 2786 "Python/bytecodes.c"
#line 2787 "Python/bytecodes.c"
DEOPT_IF(method != NULL, CALL);
DEOPT_IF(Py_TYPE(callable) != &PyMethod_Type, CALL);
STAT_INC(CALL, hit);
@ -3878,7 +3878,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
uint32_t func_version = read_u32(&next_instr[1].cache);
#line 2798 "Python/bytecodes.c"
#line 2799 "Python/bytecodes.c"
assert(kwnames == NULL);
DEOPT_IF(tstate->interp->eval_frame, CALL);
int is_meth = method != NULL;
@ -3912,7 +3912,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
uint32_t func_version = read_u32(&next_instr[1].cache);
#line 2826 "Python/bytecodes.c"
#line 2827 "Python/bytecodes.c"
assert(kwnames == NULL);
DEOPT_IF(tstate->interp->eval_frame, CALL);
int is_meth = method != NULL;
@ -3956,7 +3956,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *null = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2864 "Python/bytecodes.c"
#line 2865 "Python/bytecodes.c"
assert(kwnames == NULL);
assert(oparg == 1);
DEOPT_IF(null != NULL, CALL);
@ -3979,7 +3979,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *null = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2876 "Python/bytecodes.c"
#line 2877 "Python/bytecodes.c"
assert(kwnames == NULL);
assert(oparg == 1);
DEOPT_IF(null != NULL, CALL);
@ -4004,7 +4004,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *null = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2890 "Python/bytecodes.c"
#line 2891 "Python/bytecodes.c"
assert(kwnames == NULL);
assert(oparg == 1);
DEOPT_IF(null != NULL, CALL);
@ -4024,12 +4024,84 @@
DISPATCH();
}
TARGET(CALL_NO_KW_ALLOC_AND_ENTER_INIT) {
PyObject **args = (stack_pointer - oparg);
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *null = stack_pointer[-(2 + oparg)];
#line 2905 "Python/bytecodes.c"
/* This instruction does the following:
* 1. Creates the object (by calling ``object.__new__``)
* 2. Pushes a shim frame to the frame stack (to cleanup after ``__init__``)
* 3. Pushes the frame for ``__init__`` to the frame stack
* */
assert(kwnames == NULL);
_PyCallCache *cache = (_PyCallCache *)next_instr;
DEOPT_IF(null != NULL, CALL);
DEOPT_IF(!PyType_Check(callable), CALL);
PyTypeObject *tp = (PyTypeObject *)callable;
DEOPT_IF(tp->tp_version_tag != read_u32(cache->func_version), CALL);
PyHeapTypeObject *cls = (PyHeapTypeObject *)callable;
PyFunctionObject *init = (PyFunctionObject *)cls->_spec_cache.init;
PyCodeObject *code = (PyCodeObject *)init->func_code;
DEOPT_IF(code->co_argcount != oparg+1, CALL);
DEOPT_IF(!_PyThreadState_HasStackSpace(tstate, code->co_framesize + _Py_InitCleanup.co_framesize), CALL);
STAT_INC(CALL, hit);
PyObject *self = _PyType_NewManagedObject(tp);
if (self == NULL) {
goto error;
}
Py_DECREF(tp);
if (_Py_EnterRecursivePy(tstate)) {
goto exit_unwind;
}
_PyInterpreterFrame *shim = _PyFrame_PushTrampolineUnchecked(
tstate, (PyCodeObject *)&_Py_InitCleanup, 1, 0);
assert(_PyCode_CODE((PyCodeObject *)shim->f_executable)[1].op.code == EXIT_INIT_CHECK);
/* Push self onto stack of shim */
Py_INCREF(self);
shim->localsplus[0] = self;
Py_INCREF(init);
_PyInterpreterFrame *init_frame = _PyFrame_PushUnchecked(tstate, init, oparg+1);
/* Copy self followed by args to __init__ frame */
init_frame->localsplus[0] = self;
for (int i = 0; i < oparg; i++) {
init_frame->localsplus[i+1] = args[i];
}
SKIP_OVER(INLINE_CACHE_ENTRIES_CALL);
frame->prev_instr = next_instr - 1;
frame->return_offset = 0;
STACK_SHRINK(oparg+2);
_PyFrame_SetStackPointer(frame, stack_pointer);
/* Link frames */
init_frame->previous = shim;
shim->previous = frame;
frame = cframe.current_frame = init_frame;
CALL_STAT_INC(inlined_py_calls);
goto start_frame;
#line 4082 "Python/generated_cases.c.h"
}
TARGET(EXIT_INIT_CHECK) {
PyObject *should_be_none = stack_pointer[-1];
#line 2957 "Python/bytecodes.c"
assert(STACK_LEVEL() == 2);
if (should_be_none != Py_None) {
PyErr_Format(PyExc_TypeError,
"__init__() should return None, not '%.200s'",
Py_TYPE(should_be_none)->tp_name);
goto error;
}
#line 4095 "Python/generated_cases.c.h"
STACK_SHRINK(1);
DISPATCH();
}
TARGET(CALL_BUILTIN_CLASS) {
PyObject **args = (stack_pointer - oparg);
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2904 "Python/bytecodes.c"
#line 2967 "Python/bytecodes.c"
int is_meth = method != NULL;
int total_args = oparg;
if (is_meth) {
@ -4051,7 +4123,7 @@
}
Py_DECREF(tp);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4055 "Python/generated_cases.c.h"
#line 4127 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4065,7 +4137,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2929 "Python/bytecodes.c"
#line 2992 "Python/bytecodes.c"
/* Builtin METH_O functions */
assert(kwnames == NULL);
int is_meth = method != NULL;
@ -4093,7 +4165,7 @@
Py_DECREF(arg);
Py_DECREF(callable);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4097 "Python/generated_cases.c.h"
#line 4169 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4107,7 +4179,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2960 "Python/bytecodes.c"
#line 3023 "Python/bytecodes.c"
/* Builtin METH_FASTCALL functions, without keywords */
assert(kwnames == NULL);
int is_meth = method != NULL;
@ -4139,7 +4211,7 @@
'invalid'). In those cases an exception is set, so we must
handle it.
*/
#line 4143 "Python/generated_cases.c.h"
#line 4215 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4153,7 +4225,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 2995 "Python/bytecodes.c"
#line 3058 "Python/bytecodes.c"
/* Builtin METH_FASTCALL | METH_KEYWORDS functions */
int is_meth = method != NULL;
int total_args = oparg;
@ -4185,7 +4257,7 @@
}
Py_DECREF(callable);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4189 "Python/generated_cases.c.h"
#line 4261 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4199,7 +4271,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 3030 "Python/bytecodes.c"
#line 3093 "Python/bytecodes.c"
assert(kwnames == NULL);
/* len(o) */
int is_meth = method != NULL;
@ -4224,7 +4296,7 @@
Py_DECREF(callable);
Py_DECREF(arg);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4228 "Python/generated_cases.c.h"
#line 4300 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4237,7 +4309,7 @@
PyObject *callable = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 3057 "Python/bytecodes.c"
#line 3120 "Python/bytecodes.c"
assert(kwnames == NULL);
/* isinstance(o, o2) */
int is_meth = method != NULL;
@ -4264,7 +4336,7 @@
Py_DECREF(cls);
Py_DECREF(callable);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4268 "Python/generated_cases.c.h"
#line 4340 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4276,7 +4348,7 @@
PyObject **args = (stack_pointer - oparg);
PyObject *self = stack_pointer[-(1 + oparg)];
PyObject *method = stack_pointer[-(2 + oparg)];
#line 3087 "Python/bytecodes.c"
#line 3150 "Python/bytecodes.c"
assert(kwnames == NULL);
assert(oparg == 1);
assert(method != NULL);
@ -4294,14 +4366,14 @@
SKIP_OVER(INLINE_CACHE_ENTRIES_CALL + 1);
assert(next_instr[-1].op.code == POP_TOP);
DISPATCH();
#line 4298 "Python/generated_cases.c.h"
#line 4370 "Python/generated_cases.c.h"
}
TARGET(CALL_NO_KW_METHOD_DESCRIPTOR_O) {
PyObject **args = (stack_pointer - oparg);
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 3107 "Python/bytecodes.c"
#line 3170 "Python/bytecodes.c"
assert(kwnames == NULL);
int is_meth = method != NULL;
int total_args = oparg;
@ -4332,7 +4404,7 @@
Py_DECREF(arg);
Py_DECREF(callable);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4336 "Python/generated_cases.c.h"
#line 4408 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4345,7 +4417,7 @@
PyObject **args = (stack_pointer - oparg);
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 3141 "Python/bytecodes.c"
#line 3204 "Python/bytecodes.c"
int is_meth = method != NULL;
int total_args = oparg;
if (is_meth) {
@ -4374,7 +4446,7 @@
}
Py_DECREF(callable);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4378 "Python/generated_cases.c.h"
#line 4450 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4387,7 +4459,7 @@
PyObject **args = (stack_pointer - oparg);
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 3173 "Python/bytecodes.c"
#line 3236 "Python/bytecodes.c"
assert(kwnames == NULL);
assert(oparg == 0 || oparg == 1);
int is_meth = method != NULL;
@ -4416,7 +4488,7 @@
Py_DECREF(self);
Py_DECREF(callable);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4420 "Python/generated_cases.c.h"
#line 4492 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4429,7 +4501,7 @@
PyObject **args = (stack_pointer - oparg);
PyObject *method = stack_pointer[-(2 + oparg)];
PyObject *res;
#line 3205 "Python/bytecodes.c"
#line 3268 "Python/bytecodes.c"
assert(kwnames == NULL);
int is_meth = method != NULL;
int total_args = oparg;
@ -4457,7 +4529,7 @@
}
Py_DECREF(callable);
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
#line 4461 "Python/generated_cases.c.h"
#line 4533 "Python/generated_cases.c.h"
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -4467,9 +4539,9 @@
}
TARGET(INSTRUMENTED_CALL_FUNCTION_EX) {
#line 3236 "Python/bytecodes.c"
#line 3299 "Python/bytecodes.c"
GO_TO_INSTRUCTION(CALL_FUNCTION_EX);
#line 4473 "Python/generated_cases.c.h"
#line 4545 "Python/generated_cases.c.h"
}
TARGET(CALL_FUNCTION_EX) {
@ -4478,7 +4550,7 @@
PyObject *callargs = stack_pointer[-(1 + ((oparg & 1) ? 1 : 0))];
PyObject *func = stack_pointer[-(2 + ((oparg & 1) ? 1 : 0))];
PyObject *result;
#line 3240 "Python/bytecodes.c"
#line 3303 "Python/bytecodes.c"
// DICT_MERGE is called before this opcode if there are kwargs.
// It converts all dict subtypes in kwargs into regular dicts.
assert(kwargs == NULL || PyDict_CheckExact(kwargs));
@ -4540,14 +4612,14 @@
}
result = PyObject_Call(func, callargs, kwargs);
}
#line 4544 "Python/generated_cases.c.h"
#line 4616 "Python/generated_cases.c.h"
Py_DECREF(func);
Py_DECREF(callargs);
Py_XDECREF(kwargs);
#line 3302 "Python/bytecodes.c"
#line 3365 "Python/bytecodes.c"
assert(PEEK(3 + (oparg & 1)) == NULL);
if (result == NULL) { STACK_SHRINK(((oparg & 1) ? 1 : 0)); goto pop_3_error; }
#line 4551 "Python/generated_cases.c.h"
#line 4623 "Python/generated_cases.c.h"
STACK_SHRINK(((oparg & 1) ? 1 : 0));
STACK_SHRINK(2);
stack_pointer[-1] = result;
@ -4558,7 +4630,7 @@
TARGET(MAKE_FUNCTION) {
PyObject *codeobj = stack_pointer[-1];
PyObject *func;
#line 3308 "Python/bytecodes.c"
#line 3371 "Python/bytecodes.c"
PyFunctionObject *func_obj = (PyFunctionObject *)
PyFunction_New(codeobj, GLOBALS());
@ -4570,7 +4642,7 @@
func_obj->func_version = ((PyCodeObject *)codeobj)->co_version;
func = (PyObject *)func_obj;
#line 4574 "Python/generated_cases.c.h"
#line 4646 "Python/generated_cases.c.h"
stack_pointer[-1] = func;
DISPATCH();
}
@ -4578,7 +4650,7 @@
TARGET(SET_FUNCTION_ATTRIBUTE) {
PyObject *func = stack_pointer[-1];
PyObject *attr = stack_pointer[-2];
#line 3322 "Python/bytecodes.c"
#line 3385 "Python/bytecodes.c"
assert(PyFunction_Check(func));
PyFunctionObject *func_obj = (PyFunctionObject *)func;
switch(oparg) {
@ -4603,14 +4675,14 @@
default:
Py_UNREACHABLE();
}
#line 4607 "Python/generated_cases.c.h"
#line 4679 "Python/generated_cases.c.h"
STACK_SHRINK(1);
stack_pointer[-1] = func;
DISPATCH();
}
TARGET(RETURN_GENERATOR) {
#line 3349 "Python/bytecodes.c"
#line 3412 "Python/bytecodes.c"
assert(PyFunction_Check(frame->f_funcobj));
PyFunctionObject *func = (PyFunctionObject *)frame->f_funcobj;
PyGenObject *gen = (PyGenObject *)_Py_MakeCoro(func);
@ -4631,7 +4703,7 @@
frame = cframe.current_frame = prev;
_PyFrame_StackPush(frame, (PyObject *)gen);
goto resume_frame;
#line 4635 "Python/generated_cases.c.h"
#line 4707 "Python/generated_cases.c.h"
}
TARGET(BUILD_SLICE) {
@ -4639,15 +4711,15 @@
PyObject *stop = stack_pointer[-(1 + ((oparg == 3) ? 1 : 0))];
PyObject *start = stack_pointer[-(2 + ((oparg == 3) ? 1 : 0))];
PyObject *slice;
#line 3372 "Python/bytecodes.c"
#line 3435 "Python/bytecodes.c"
slice = PySlice_New(start, stop, step);
#line 4645 "Python/generated_cases.c.h"
#line 4717 "Python/generated_cases.c.h"
Py_DECREF(start);
Py_DECREF(stop);
Py_XDECREF(step);
#line 3374 "Python/bytecodes.c"
#line 3437 "Python/bytecodes.c"
if (slice == NULL) { STACK_SHRINK(((oparg == 3) ? 1 : 0)); goto pop_2_error; }
#line 4651 "Python/generated_cases.c.h"
#line 4723 "Python/generated_cases.c.h"
STACK_SHRINK(((oparg == 3) ? 1 : 0));
STACK_SHRINK(1);
stack_pointer[-1] = slice;
@ -4657,14 +4729,14 @@
TARGET(CONVERT_VALUE) {
PyObject *value = stack_pointer[-1];
PyObject *result;
#line 3378 "Python/bytecodes.c"
#line 3441 "Python/bytecodes.c"
convertion_func_ptr conv_fn;
assert(oparg >= FVC_STR && oparg <= FVC_ASCII);
conv_fn = CONVERSION_FUNCTIONS[oparg];
result = conv_fn(value);
Py_DECREF(value);
if (result == NULL) goto pop_1_error;
#line 4668 "Python/generated_cases.c.h"
#line 4740 "Python/generated_cases.c.h"
stack_pointer[-1] = result;
DISPATCH();
}
@ -4672,7 +4744,7 @@
TARGET(FORMAT_SIMPLE) {
PyObject *value = stack_pointer[-1];
PyObject *res;
#line 3387 "Python/bytecodes.c"
#line 3450 "Python/bytecodes.c"
/* If value is a unicode object, then we know the result
* of format(value) is value itself. */
if (!PyUnicode_CheckExact(value)) {
@ -4683,7 +4755,7 @@
else {
res = value;
}
#line 4687 "Python/generated_cases.c.h"
#line 4759 "Python/generated_cases.c.h"
stack_pointer[-1] = res;
DISPATCH();
}
@ -4692,12 +4764,12 @@
PyObject *fmt_spec = stack_pointer[-1];
PyObject *value = stack_pointer[-2];
PyObject *res;
#line 3400 "Python/bytecodes.c"
#line 3463 "Python/bytecodes.c"
res = PyObject_Format(value, fmt_spec);
Py_DECREF(value);
Py_DECREF(fmt_spec);
if (res == NULL) goto pop_2_error;
#line 4701 "Python/generated_cases.c.h"
#line 4773 "Python/generated_cases.c.h"
STACK_SHRINK(1);
stack_pointer[-1] = res;
DISPATCH();
@ -4706,10 +4778,10 @@
TARGET(COPY) {
PyObject *bottom = stack_pointer[-(1 + (oparg-1))];
PyObject *top;
#line 3407 "Python/bytecodes.c"
#line 3470 "Python/bytecodes.c"
assert(oparg > 0);
top = Py_NewRef(bottom);
#line 4713 "Python/generated_cases.c.h"
#line 4785 "Python/generated_cases.c.h"
STACK_GROW(1);
stack_pointer[-1] = top;
DISPATCH();
@ -4721,7 +4793,7 @@
PyObject *rhs = stack_pointer[-1];
PyObject *lhs = stack_pointer[-2];
PyObject *res;
#line 3412 "Python/bytecodes.c"
#line 3475 "Python/bytecodes.c"
#if ENABLE_SPECIALIZATION
_PyBinaryOpCache *cache = (_PyBinaryOpCache *)next_instr;
if (ADAPTIVE_COUNTER_IS_ZERO(cache->counter)) {
@ -4736,12 +4808,12 @@
assert((unsigned)oparg < Py_ARRAY_LENGTH(binary_ops));
assert(binary_ops[oparg]);
res = binary_ops[oparg](lhs, rhs);
#line 4740 "Python/generated_cases.c.h"
#line 4812 "Python/generated_cases.c.h"
Py_DECREF(lhs);
Py_DECREF(rhs);
#line 3427 "Python/bytecodes.c"
#line 3490 "Python/bytecodes.c"
if (res == NULL) goto pop_2_error;
#line 4745 "Python/generated_cases.c.h"
#line 4817 "Python/generated_cases.c.h"
STACK_SHRINK(1);
stack_pointer[-1] = res;
next_instr += 1;
@ -4751,16 +4823,16 @@
TARGET(SWAP) {
PyObject *top = stack_pointer[-1];
PyObject *bottom = stack_pointer[-(2 + (oparg-2))];
#line 3432 "Python/bytecodes.c"
#line 3495 "Python/bytecodes.c"
assert(oparg >= 2);
#line 4757 "Python/generated_cases.c.h"
#line 4829 "Python/generated_cases.c.h"
stack_pointer[-1] = bottom;
stack_pointer[-(2 + (oparg-2))] = top;
DISPATCH();
}
TARGET(INSTRUMENTED_INSTRUCTION) {
#line 3436 "Python/bytecodes.c"
#line 3499 "Python/bytecodes.c"
int next_opcode = _Py_call_instrumentation_instruction(
tstate, frame, next_instr-1);
if (next_opcode < 0) goto error;
@ -4772,26 +4844,26 @@
assert(next_opcode > 0 && next_opcode < 256);
opcode = next_opcode;
DISPATCH_GOTO();
#line 4776 "Python/generated_cases.c.h"
#line 4848 "Python/generated_cases.c.h"
}
TARGET(INSTRUMENTED_JUMP_FORWARD) {
#line 3450 "Python/bytecodes.c"
#line 3513 "Python/bytecodes.c"
INSTRUMENTED_JUMP(next_instr-1, next_instr+oparg, PY_MONITORING_EVENT_JUMP);
#line 4782 "Python/generated_cases.c.h"
#line 4854 "Python/generated_cases.c.h"
DISPATCH();
}
TARGET(INSTRUMENTED_JUMP_BACKWARD) {
#line 3454 "Python/bytecodes.c"
#line 3517 "Python/bytecodes.c"
INSTRUMENTED_JUMP(next_instr-1, next_instr+1-oparg, PY_MONITORING_EVENT_JUMP);
#line 4789 "Python/generated_cases.c.h"
#line 4861 "Python/generated_cases.c.h"
CHECK_EVAL_BREAKER();
DISPATCH();
}
TARGET(INSTRUMENTED_POP_JUMP_IF_TRUE) {
#line 3459 "Python/bytecodes.c"
#line 3522 "Python/bytecodes.c"
PyObject *cond = POP();
int err = PyObject_IsTrue(cond);
Py_DECREF(cond);
@ -4800,12 +4872,12 @@
assert(err == 0 || err == 1);
int offset = err*oparg;
INSTRUMENTED_JUMP(here, next_instr + offset, PY_MONITORING_EVENT_BRANCH);
#line 4804 "Python/generated_cases.c.h"
#line 4876 "Python/generated_cases.c.h"
DISPATCH();
}
TARGET(INSTRUMENTED_POP_JUMP_IF_FALSE) {
#line 3470 "Python/bytecodes.c"
#line 3533 "Python/bytecodes.c"
PyObject *cond = POP();
int err = PyObject_IsTrue(cond);
Py_DECREF(cond);
@ -4814,12 +4886,12 @@
assert(err == 0 || err == 1);
int offset = (1-err)*oparg;
INSTRUMENTED_JUMP(here, next_instr + offset, PY_MONITORING_EVENT_BRANCH);
#line 4818 "Python/generated_cases.c.h"
#line 4890 "Python/generated_cases.c.h"
DISPATCH();
}
TARGET(INSTRUMENTED_POP_JUMP_IF_NONE) {
#line 3481 "Python/bytecodes.c"
#line 3544 "Python/bytecodes.c"
PyObject *value = POP();
_Py_CODEUNIT *here = next_instr-1;
int offset;
@ -4831,12 +4903,12 @@
offset = 0;
}
INSTRUMENTED_JUMP(here, next_instr + offset, PY_MONITORING_EVENT_BRANCH);
#line 4835 "Python/generated_cases.c.h"
#line 4907 "Python/generated_cases.c.h"
DISPATCH();
}
TARGET(INSTRUMENTED_POP_JUMP_IF_NOT_NONE) {
#line 3495 "Python/bytecodes.c"
#line 3558 "Python/bytecodes.c"
PyObject *value = POP();
_Py_CODEUNIT *here = next_instr-1;
int offset;
@ -4848,30 +4920,30 @@
offset = oparg;
}
INSTRUMENTED_JUMP(here, next_instr + offset, PY_MONITORING_EVENT_BRANCH);
#line 4852 "Python/generated_cases.c.h"
#line 4924 "Python/generated_cases.c.h"
DISPATCH();
}
TARGET(EXTENDED_ARG) {
#line 3509 "Python/bytecodes.c"
#line 3572 "Python/bytecodes.c"
assert(oparg);
opcode = next_instr->op.code;
oparg = oparg << 8 | next_instr->op.arg;
PRE_DISPATCH_GOTO();
DISPATCH_GOTO();
#line 4863 "Python/generated_cases.c.h"
#line 4935 "Python/generated_cases.c.h"
}
TARGET(CACHE) {
#line 3517 "Python/bytecodes.c"
#line 3580 "Python/bytecodes.c"
assert(0 && "Executing a cache.");
Py_UNREACHABLE();
#line 4870 "Python/generated_cases.c.h"
#line 4942 "Python/generated_cases.c.h"
}
TARGET(RESERVED) {
#line 3522 "Python/bytecodes.c"
#line 3585 "Python/bytecodes.c"
assert(0 && "Executing RESERVED instruction.");
Py_UNREACHABLE();
#line 4877 "Python/generated_cases.c.h"
#line 4949 "Python/generated_cases.c.h"
}

2
Python/instrumentation.c
View file

@ -1526,7 +1526,7 @@ _Py_Instrument(PyCodeObject *code, PyInterpreterState *interp)
return 0;
}
/* Insert instrumentation */
for (int i = 0; i < code_len; i+= _PyInstruction_GetLength(code, i)) {
for (int i = code->_co_firsttraceable; i < code_len; i+= _PyInstruction_GetLength(code, i)) {
_Py_CODEUNIT *instr = &_PyCode_CODE(code)[i];
CHECK(instr->op.code != 0);
int base_opcode = _Py_GetBaseOpcode(code, i);

10
Python/opcode_metadata.h
View file

@ -368,6 +368,10 @@ _PyOpcode_num_popped(int opcode, int oparg, bool jump) {
return oparg + 2;
case CALL_NO_KW_TUPLE_1:
return oparg + 2;
case CALL_NO_KW_ALLOC_AND_ENTER_INIT:
return oparg + 2;
case EXIT_INIT_CHECK:
return 1;
case CALL_BUILTIN_CLASS:
return oparg + 2;
case CALL_NO_KW_BUILTIN_O:
@ -790,6 +794,10 @@ _PyOpcode_num_pushed(int opcode, int oparg, bool jump) {
return 1;
case CALL_NO_KW_TUPLE_1:
return 1;
case CALL_NO_KW_ALLOC_AND_ENTER_INIT:
return 1;
case EXIT_INIT_CHECK:
return 0;
case CALL_BUILTIN_CLASS:
return 1;
case CALL_NO_KW_BUILTIN_O:
@ -1057,6 +1065,8 @@ const struct opcode_metadata _PyOpcode_opcode_metadata[512] = {
[CALL_NO_KW_TYPE_1] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG },
[CALL_NO_KW_STR_1] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG },
[CALL_NO_KW_TUPLE_1] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG },
[CALL_NO_KW_ALLOC_AND_ENTER_INIT] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG },
[EXIT_INIT_CHECK] = { true, INSTR_FMT_IX, 0 },
[CALL_BUILTIN_CLASS] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG },
[CALL_NO_KW_BUILTIN_O] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG },
[CALL_NO_KW_BUILTIN_FAST] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG },

42
Python/opcode_targets.h generated
View file

@ -15,39 +15,39 @@ static void *opcode_targets[256] = {
&&TARGET_BINARY_OP_ADD_FLOAT,
&&TARGET_BINARY_OP_SUBTRACT_FLOAT,
&&TARGET_UNARY_INVERT,
&&TARGET_BINARY_OP_ADD_UNICODE,
&&TARGET_EXIT_INIT_CHECK,
&&TARGET_RESERVED,
&&TARGET_BINARY_OP_ADD_UNICODE,
&&TARGET_BINARY_OP_INPLACE_ADD_UNICODE,
&&TARGET_BINARY_SUBSCR_DICT,
&&TARGET_BINARY_SUBSCR_GETITEM,
&&TARGET_BINARY_SUBSCR_LIST_INT,
&&TARGET_BINARY_SUBSCR_TUPLE_INT,
&&TARGET_STORE_SUBSCR_DICT,
&&TARGET_MAKE_FUNCTION,
&&TARGET_BINARY_SUBSCR,
&&TARGET_BINARY_SLICE,
&&TARGET_STORE_SLICE,
&&TARGET_STORE_SUBSCR_DICT,
&&TARGET_STORE_SUBSCR_LIST_INT,
&&TARGET_SEND_GEN,
&&TARGET_GET_LEN,
&&TARGET_MATCH_MAPPING,
&&TARGET_MATCH_SEQUENCE,
&&TARGET_MATCH_KEYS,
&&TARGET_UNPACK_SEQUENCE_TWO_TUPLE,
&&TARGET_SEND_GEN,
&&TARGET_PUSH_EXC_INFO,
&&TARGET_CHECK_EXC_MATCH,
&&TARGET_CHECK_EG_MATCH,
&&TARGET_UNPACK_SEQUENCE_TWO_TUPLE,
&&TARGET_UNPACK_SEQUENCE_TUPLE,
&&TARGET_UNPACK_SEQUENCE_LIST,
&&TARGET_FORMAT_SIMPLE,
&&TARGET_FORMAT_WITH_SPEC,
&&TARGET_UNPACK_SEQUENCE_LIST,
&&TARGET_STORE_ATTR_INSTANCE_VALUE,
&&TARGET_STORE_ATTR_SLOT,
&&TARGET_STORE_ATTR_WITH_HINT,
&&TARGET_LOAD_GLOBAL_MODULE,
&&TARGET_LOAD_GLOBAL_BUILTIN,
&&TARGET_LOAD_SUPER_ATTR_ATTR,
&&TARGET_LOAD_SUPER_ATTR_METHOD,
&&TARGET_WITH_EXCEPT_START,
&&TARGET_GET_AITER,
&&TARGET_GET_ANEXT,
@ -55,39 +55,39 @@ static void *opcode_targets[256] = {
&&TARGET_BEFORE_WITH,
&&TARGET_END_ASYNC_FOR,
&&TARGET_CLEANUP_THROW,
&&TARGET_LOAD_SUPER_ATTR_METHOD,
&&TARGET_LOAD_ATTR_INSTANCE_VALUE,
&&TARGET_LOAD_ATTR_MODULE,
&&TARGET_LOAD_ATTR_WITH_HINT,
&&TARGET_LOAD_ATTR_SLOT,
&&TARGET_STORE_SUBSCR,
&&TARGET_DELETE_SUBSCR,
&&TARGET_LOAD_ATTR_SLOT,
&&TARGET_LOAD_ATTR_CLASS,
&&TARGET_LOAD_ATTR_PROPERTY,
&&TARGET_LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN,
&&TARGET_LOAD_ATTR_METHOD_WITH_VALUES,
&&TARGET_LOAD_ATTR_METHOD_NO_DICT,
&&TARGET_LOAD_ATTR_METHOD_LAZY_DICT,
&&TARGET_GET_ITER,
&&TARGET_GET_YIELD_FROM_ITER,
&&TARGET_COMPARE_OP_FLOAT,
&&TARGET_LOAD_ATTR_METHOD_LAZY_DICT,
&&TARGET_LOAD_BUILD_CLASS,
&&TARGET_COMPARE_OP_FLOAT,
&&TARGET_COMPARE_OP_INT,
&&TARGET_COMPARE_OP_STR,
&&TARGET_LOAD_ASSERTION_ERROR,
&&TARGET_RETURN_GENERATOR,
&&TARGET_COMPARE_OP_STR,
&&TARGET_FOR_ITER_LIST,
&&TARGET_FOR_ITER_TUPLE,
&&TARGET_FOR_ITER_RANGE,
&&TARGET_FOR_ITER_GEN,
&&TARGET_CALL_BOUND_METHOD_EXACT_ARGS,
&&TARGET_CALL_PY_EXACT_ARGS,
&&TARGET_CALL_PY_WITH_DEFAULTS,
&&TARGET_RETURN_VALUE,
&&TARGET_CALL_NO_KW_TYPE_1,
&&TARGET_CALL_PY_WITH_DEFAULTS,
&&TARGET_SETUP_ANNOTATIONS,
&&TARGET_CALL_NO_KW_STR_1,
&&TARGET_CALL_NO_KW_TYPE_1,
&&TARGET_LOAD_LOCALS,
&&TARGET_CALL_NO_KW_TUPLE_1,
&&TARGET_CALL_NO_KW_STR_1,
&&TARGET_POP_EXCEPT,
&&TARGET_STORE_NAME,
&&TARGET_DELETE_NAME,
@ -110,9 +110,9 @@ static void *opcode_targets[256] = {
&&TARGET_IMPORT_NAME,
&&TARGET_IMPORT_FROM,
&&TARGET_JUMP_FORWARD,
&&TARGET_CALL_NO_KW_TUPLE_1,
&&TARGET_CALL_BUILTIN_CLASS,
&&TARGET_CALL_NO_KW_BUILTIN_O,
&&TARGET_CALL_NO_KW_BUILTIN_FAST,
&&TARGET_POP_JUMP_IF_FALSE,
&&TARGET_POP_JUMP_IF_TRUE,
&&TARGET_LOAD_GLOBAL,
@ -131,7 +131,7 @@ static void *opcode_targets[256] = {
&&TARGET_POP_JUMP_IF_NONE,
&&TARGET_RAISE_VARARGS,
&&TARGET_GET_AWAITABLE,
&&TARGET_CALL_BUILTIN_FAST_WITH_KEYWORDS,
&&TARGET_CALL_NO_KW_BUILTIN_FAST,
&&TARGET_BUILD_SLICE,
&&TARGET_JUMP_BACKWARD_NO_INTERRUPT,
&&TARGET_MAKE_CELL,
@ -147,26 +147,26 @@ static void *opcode_targets[256] = {
&&TARGET_LIST_APPEND,
&&TARGET_SET_ADD,
&&TARGET_MAP_ADD,
&&TARGET_CALL_NO_KW_LEN,
&&TARGET_CALL_BUILTIN_FAST_WITH_KEYWORDS,
&&TARGET_COPY_FREE_VARS,
&&TARGET_YIELD_VALUE,
&&TARGET_RESUME,
&&TARGET_MATCH_CLASS,
&&TARGET_CALL_NO_KW_LEN,
&&TARGET_CALL_NO_KW_ISINSTANCE,
&&TARGET_CALL_NO_KW_LIST_APPEND,
&&TARGET_CALL_NO_KW_METHOD_DESCRIPTOR_O,
&&TARGET_BUILD_CONST_KEY_MAP,
&&TARGET_BUILD_STRING,
&&TARGET_CONVERT_VALUE,
&&TARGET_CALL_NO_KW_METHOD_DESCRIPTOR_O,
&&TARGET_CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS,
&&TARGET_CALL_NO_KW_METHOD_DESCRIPTOR_NOARGS,
&&TARGET_CALL_NO_KW_METHOD_DESCRIPTOR_FAST,
&&TARGET_LIST_EXTEND,
&&TARGET_SET_UPDATE,
&&TARGET_DICT_MERGE,
&&TARGET_DICT_UPDATE,
&&_unknown_opcode,
&&_unknown_opcode,
&&TARGET_CALL_NO_KW_METHOD_DESCRIPTOR_FAST,
&&TARGET_CALL_NO_KW_ALLOC_AND_ENTER_INIT,
&&TARGET_LOAD_FAST_LOAD_FAST,
&&TARGET_STORE_FAST_LOAD_FAST,
&&TARGET_STORE_FAST_STORE_FAST,

99
Python/specialize.c
View file

@ -391,7 +391,7 @@ _PyCode_Quicken(PyCodeObject *code)
#define SPEC_FAIL_CALL_METH_DESCR_VARARGS_KEYWORDS 18
#define SPEC_FAIL_CALL_METH_DESCR_METHOD_FASTCALL_KEYWORDS 19
#define SPEC_FAIL_CALL_BAD_CALL_FLAGS 20
#define SPEC_FAIL_CALL_PYTHON_CLASS 21
#define SPEC_FAIL_CALL_INIT_NOT_PYTHON 21
#define SPEC_FAIL_CALL_PEP_523 22
#define SPEC_FAIL_CALL_BOUND_METHOD 23
#define SPEC_FAIL_CALL_STR 24
@ -400,6 +400,7 @@ _PyCode_Quicken(PyCodeObject *code)
#define SPEC_FAIL_CALL_KWNAMES 27
#define SPEC_FAIL_CALL_METHOD_WRAPPER 28
#define SPEC_FAIL_CALL_OPERATOR_WRAPPER 29
#define SPEC_FAIL_CALL_INIT_NOT_SIMPLE 30
/* COMPARE_OP */
#define SPEC_FAIL_COMPARE_OP_DIFFERENT_TYPES 12
@ -1491,15 +1492,46 @@ success:
cache->counter = adaptive_counter_cooldown();
}
/* Returns a borrowed reference.
* The reference is only valid if guarded by a type version check.
*/
static PyFunctionObject *
get_init_for_simple_managed_python_class(PyTypeObject *tp)
{
assert(tp->tp_new == PyBaseObject_Type.tp_new);
if (tp->tp_alloc != PyType_GenericAlloc) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_OVERRIDDEN);
return NULL;
}
if ((tp->tp_flags & Py_TPFLAGS_MANAGED_DICT) == 0) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_NO_DICT);
return NULL;
}
if (!(tp->tp_flags & Py_TPFLAGS_HEAPTYPE)) {
/* Is this possible? */
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_EXPECTED_ERROR);
return NULL;
}
PyObject *init = _PyType_Lookup(tp, &_Py_ID(__init__));
if (init == NULL || !PyFunction_Check(init)) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_CALL_INIT_NOT_PYTHON);
return NULL;
}
int kind = function_kind((PyCodeObject *)PyFunction_GET_CODE(init));
if (kind != SIMPLE_FUNCTION) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_CALL_INIT_NOT_SIMPLE);
return NULL;
}
((PyHeapTypeObject *)tp)->_spec_cache.init = init;
return (PyFunctionObject *)init;
}
static int
specialize_class_call(PyObject *callable, _Py_CODEUNIT *instr, int nargs,
PyObject *kwnames)
{
assert(PyType_Check(callable));
PyTypeObject *tp = _PyType_CAST(callable);
if (tp->tp_new == PyBaseObject_Type.tp_new) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_CALL_PYTHON_CLASS);
return -1;
}
if (tp->tp_flags & Py_TPFLAGS_IMMUTABLETYPE) {
int oparg = instr->op.arg;
if (nargs == 1 && kwnames == NULL && oparg == 1) {
@ -1524,6 +1556,24 @@ specialize_class_call(PyObject *callable, _Py_CODEUNIT *instr, int nargs,
SPEC_FAIL_CALL_STR : SPEC_FAIL_CALL_CLASS_NO_VECTORCALL);
return -1;
}
if (tp->tp_new == PyBaseObject_Type.tp_new) {
PyFunctionObject *init = get_init_for_simple_managed_python_class(tp);
if (init != NULL) {
if (((PyCodeObject *)init->func_code)->co_argcount != nargs+1) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_WRONG_NUMBER_ARGUMENTS);
return -1;
}
if (kwnames) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_CALL_KWNAMES);
return -1;
}
_PyCallCache *cache = (_PyCallCache *)(instr + 1);
write_u32(cache->func_version, tp->tp_version_tag);
_Py_SET_OPCODE(*instr, CALL_NO_KW_ALLOC_AND_ENTER_INIT);
return 0;
}
return -1;
}
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_CALL_CLASS_MUTABLE);
return -1;
}
@ -2229,3 +2279,42 @@ success:
STAT_INC(SEND, success);
cache->counter = adaptive_counter_cooldown();
}
/* Code init cleanup.
* CALL_NO_KW_ALLOC_AND_ENTER_INIT will set up
* the frame to execute the EXIT_INIT_CHECK
* instruction.
* Ends with a RESUME so that it is not traced.
* This is used as a plain code object, not a function,
* so must not access globals or builtins.
*/
#define NO_LOC_4 (128 | (PY_CODE_LOCATION_INFO_NONE << 3) | 3)
static const PyBytesObject no_location = {
PyVarObject_HEAD_INIT(&PyBytes_Type, 1)
.ob_sval = { NO_LOC_4 }
};
const struct _PyCode_DEF(8) _Py_InitCleanup = {
_PyVarObject_HEAD_INIT(&PyCode_Type, 4)
.co_consts = (PyObject *)&_Py_SINGLETON(tuple_empty),
.co_names = (PyObject *)&_Py_SINGLETON(tuple_empty),
.co_exceptiontable = (PyObject *)&_Py_SINGLETON(bytes_empty),
.co_flags = CO_OPTIMIZED,
.co_localsplusnames = (PyObject *)&_Py_SINGLETON(tuple_empty),
.co_localspluskinds = (PyObject *)&_Py_SINGLETON(bytes_empty),
.co_filename = &_Py_ID(__init__),
.co_name = &_Py_ID(__init__),
.co_qualname = &_Py_ID(__init__),
.co_linetable = (PyObject *)&no_location,
._co_firsttraceable = 4,
.co_stacksize = 2,
.co_framesize = 2 + FRAME_SPECIALS_SIZE,
.co_code_adaptive = {
NOP, 0,
EXIT_INIT_CHECK, 0,
RETURN_VALUE, 0,
RESUME, 0,
}
};