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GH-111485: Use micro-ops to split specialization code from base action (GH-111561)

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Mark Shannon 2023-11-01 10:53:27 +00:00 • committed by GitHub
parent eaf67e37a2
commit b14e882428
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9 changed files with 864 additions and 583 deletions
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804
Python/generated_cases.c.h generated
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@ -332,20 +332,28 @@
static_assert(INLINE_CACHE_ENTRIES_TO_BOOL == 3, "incorrect cache size");
PyObject *value;
PyObject *res;
// _SPECIALIZE_TO_BOOL
value = stack_pointer[-1];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_ToBool(value, next_instr);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_ToBool(value, next_instr);
DISPATCH_SAME_OPARG();
}
STAT_INC(TO_BOOL, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _TO_BOOL
{
int err = PyObject_IsTrue(value);
Py_DECREF(value);
if (err < 0) goto pop_1_error;
res = err ? Py_True : Py_False;
}
STAT_INC(TO_BOOL, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
int err = PyObject_IsTrue(value);
Py_DECREF(value);
if (err < 0) goto pop_1_error;
res = err ? Py_True : Py_False;
stack_pointer[-1] = res;
DISPATCH();
}
@ -708,21 +716,29 @@
PyObject *sub;
PyObject *container;
PyObject *res;
// _SPECIALIZE_BINARY_SUBSCR
sub = stack_pointer[-1];
container = stack_pointer[-2];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_BinarySubscr(container, sub, next_instr);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_BinarySubscr(container, sub, next_instr);
DISPATCH_SAME_OPARG();
}
STAT_INC(BINARY_SUBSCR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _BINARY_SUBSCR
{
res = PyObject_GetItem(container, sub);
Py_DECREF(container);
Py_DECREF(sub);
if (res == NULL) goto pop_2_error;
}
STAT_INC(BINARY_SUBSCR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
res = PyObject_GetItem(container, sub);
Py_DECREF(container);
Py_DECREF(sub);
if (res == NULL) goto pop_2_error;
STACK_SHRINK(1);
stack_pointer[-1] = res;
DISPATCH();
@ -962,24 +978,32 @@
PyObject *sub;
PyObject *container;
PyObject *v;
// _SPECIALIZE_STORE_SUBSCR
sub = stack_pointer[-1];
container = stack_pointer[-2];
v = stack_pointer[-3];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_StoreSubscr(container, sub, next_instr);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_StoreSubscr(container, sub, next_instr);
DISPATCH_SAME_OPARG();
}
STAT_INC(STORE_SUBSCR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _STORE_SUBSCR
v = stack_pointer[-3];
{
/* container[sub] = v */
int err = PyObject_SetItem(container, sub, v);
Py_DECREF(v);
Py_DECREF(container);
Py_DECREF(sub);
if (err) goto pop_3_error;
}
STAT_INC(STORE_SUBSCR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
/* container[sub] = v */
int err = PyObject_SetItem(container, sub, v);
Py_DECREF(v);
Py_DECREF(container);
Py_DECREF(sub);
if (err) goto pop_3_error;
STACK_SHRINK(3);
DISPATCH();
}
@ -1378,56 +1402,64 @@
PREDICTED(SEND);
_Py_CODEUNIT *this_instr = next_instr - 2;
static_assert(INLINE_CACHE_ENTRIES_SEND == 1, "incorrect cache size");
PyObject *v;
PyObject *receiver;
PyObject *v;
PyObject *retval;
v = stack_pointer[-1];
// _SPECIALIZE_SEND
receiver = stack_pointer[-2];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_Send(receiver, next_instr);
DISPATCH_SAME_OPARG();
}
STAT_INC(SEND, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
assert(frame != &entry_frame);
if ((tstate->interp->eval_frame == NULL) &&
(Py_TYPE(receiver) == &PyGen_Type || Py_TYPE(receiver) == &PyCoro_Type) &&
((PyGenObject *)receiver)->gi_frame_state < FRAME_EXECUTING)
{
PyGenObject *gen = (PyGenObject *)receiver;
_PyInterpreterFrame *gen_frame = (_PyInterpreterFrame *)gen->gi_iframe;
STACK_SHRINK(1);
_PyFrame_StackPush(gen_frame, v);
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
assert(1 + INLINE_CACHE_ENTRIES_SEND == next_instr - this_instr);
frame->return_offset = (uint16_t)(1 + INLINE_CACHE_ENTRIES_SEND + oparg);
DISPATCH_INLINED(gen_frame);
}
if (Py_IsNone(v) && PyIter_Check(receiver)) {
retval = Py_TYPE(receiver)->tp_iternext(receiver);
}
else {
retval = PyObject_CallMethodOneArg(receiver, &_Py_ID(send), v);
}
if (retval == NULL) {
if (_PyErr_ExceptionMatches(tstate, PyExc_StopIteration)
) {
monitor_raise(tstate, frame, this_instr);
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_Send(receiver, next_instr);
DISPATCH_SAME_OPARG();
}
if (_PyGen_FetchStopIterationValue(&retval) == 0) {
assert(retval != NULL);
JUMPBY(oparg);
STAT_INC(SEND, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _SEND
v = stack_pointer[-1];
{
assert(frame != &entry_frame);
if ((tstate->interp->eval_frame == NULL) &&
(Py_TYPE(receiver) == &PyGen_Type || Py_TYPE(receiver) == &PyCoro_Type) &&
((PyGenObject *)receiver)->gi_frame_state < FRAME_EXECUTING)
{
PyGenObject *gen = (PyGenObject *)receiver;
_PyInterpreterFrame *gen_frame = (_PyInterpreterFrame *)gen->gi_iframe;
STACK_SHRINK(1);
_PyFrame_StackPush(gen_frame, v);
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
assert(1 + INLINE_CACHE_ENTRIES_SEND == next_instr - this_instr);
frame->return_offset = (uint16_t)(1 + INLINE_CACHE_ENTRIES_SEND + oparg);
DISPATCH_INLINED(gen_frame);
}
if (Py_IsNone(v) && PyIter_Check(receiver)) {
retval = Py_TYPE(receiver)->tp_iternext(receiver);
}
else {
goto error;
retval = PyObject_CallMethodOneArg(receiver, &_Py_ID(send), v);
}
if (retval == NULL) {
if (_PyErr_ExceptionMatches(tstate, PyExc_StopIteration)
) {
monitor_raise(tstate, frame, this_instr);
}
if (_PyGen_FetchStopIterationValue(&retval) == 0) {
assert(retval != NULL);
JUMPBY(oparg);
}
else {
goto error;
}
}
Py_DECREF(v);
}
Py_DECREF(v);
stack_pointer[-1] = retval;
DISPATCH();
}
@ -1694,20 +1726,27 @@
_Py_CODEUNIT *this_instr = next_instr - 2;
static_assert(INLINE_CACHE_ENTRIES_UNPACK_SEQUENCE == 1, "incorrect cache size");
PyObject *seq;
// _SPECIALIZE_UNPACK_SEQUENCE
seq = stack_pointer[-1];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_UnpackSequence(seq, next_instr, oparg);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_UnpackSequence(seq, next_instr, oparg);
DISPATCH_SAME_OPARG();
}
STAT_INC(UNPACK_SEQUENCE, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _UNPACK_SEQUENCE
{
PyObject **top = stack_pointer + oparg - 1;
int res = _PyEval_UnpackIterable(tstate, seq, oparg, -1, top);
Py_DECREF(seq);
if (res == 0) goto pop_1_error;
}
STAT_INC(UNPACK_SEQUENCE, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
PyObject **top = stack_pointer + oparg - 1;
int res = _PyEval_UnpackIterable(tstate, seq, oparg, -1, top);
Py_DECREF(seq);
if (res == 0) goto pop_1_error;
STACK_SHRINK(1);
STACK_GROW(oparg);
DISPATCH();
@ -1799,23 +1838,31 @@
static_assert(INLINE_CACHE_ENTRIES_STORE_ATTR == 4, "incorrect cache size");
PyObject *owner;
PyObject *v;
// _SPECIALIZE_STORE_ATTR
owner = stack_pointer[-1];
v = stack_pointer[-2];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
next_instr = this_instr;
_Py_Specialize_StoreAttr(owner, next_instr, name);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
next_instr = this_instr;
_Py_Specialize_StoreAttr(owner, next_instr, name);
DISPATCH_SAME_OPARG();
}
STAT_INC(STORE_ATTR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _STORE_ATTR
v = stack_pointer[-2];
{
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
int err = PyObject_SetAttr(owner, name, v);
Py_DECREF(v);
Py_DECREF(owner);
if (err) goto pop_2_error;
}
STAT_INC(STORE_ATTR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
int err = PyObject_SetAttr(owner, name, v);
Py_DECREF(v);
Py_DECREF(owner);
if (err) goto pop_2_error;
STACK_SHRINK(2);
DISPATCH();
}
@ -1968,51 +2015,58 @@
static_assert(INLINE_CACHE_ENTRIES_LOAD_GLOBAL == 4, "incorrect cache size");
PyObject *res;
PyObject *null = NULL;
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg>>1);
next_instr = this_instr;
_Py_Specialize_LoadGlobal(GLOBALS(), BUILTINS(), next_instr, name);
DISPATCH_SAME_OPARG();
}
STAT_INC(LOAD_GLOBAL, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg>>1);
if (PyDict_CheckExact(GLOBALS())
&& PyDict_CheckExact(BUILTINS()))
// _SPECIALIZE_LOAD_GLOBAL
{
res = _PyDict_LoadGlobal((PyDictObject *)GLOBALS(),
(PyDictObject *)BUILTINS(),
name);
if (res == NULL) {
if (!_PyErr_Occurred(tstate)) {
/* _PyDict_LoadGlobal() returns NULL without raising
* an exception if the key doesn't exist */
_PyEval_FormatExcCheckArg(tstate, PyExc_NameError,
NAME_ERROR_MSG, name);
}
if (true) goto error;
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg>>1);
next_instr = this_instr;
_Py_Specialize_LoadGlobal(GLOBALS(), BUILTINS(), next_instr, name);
DISPATCH_SAME_OPARG();
}
Py_INCREF(res);
STAT_INC(LOAD_GLOBAL, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
else {
/* Slow-path if globals or builtins is not a dict */
/* namespace 1: globals */
if (PyMapping_GetOptionalItem(GLOBALS(), name, &res) < 0) goto error;
if (res == NULL) {
/* namespace 2: builtins */
if (PyMapping_GetOptionalItem(BUILTINS(), name, &res) < 0) goto error;
// _LOAD_GLOBAL
{
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg>>1);
if (PyDict_CheckExact(GLOBALS())
&& PyDict_CheckExact(BUILTINS()))
{
res = _PyDict_LoadGlobal((PyDictObject *)GLOBALS(),
(PyDictObject *)BUILTINS(),
name);
if (res == NULL) {
_PyEval_FormatExcCheckArg(
tstate, PyExc_NameError,
NAME_ERROR_MSG, name);
if (!_PyErr_Occurred(tstate)) {
/* _PyDict_LoadGlobal() returns NULL without raising
* an exception if the key doesn't exist */
_PyEval_FormatExcCheckArg(tstate, PyExc_NameError,
NAME_ERROR_MSG, name);
}
if (true) goto error;
}
Py_INCREF(res);
}
else {
/* Slow-path if globals or builtins is not a dict */
/* namespace 1: globals */
if (PyMapping_GetOptionalItem(GLOBALS(), name, &res) < 0) goto error;
if (res == NULL) {
/* namespace 2: builtins */
if (PyMapping_GetOptionalItem(BUILTINS(), name, &res) < 0) goto error;
if (res == NULL) {
_PyEval_FormatExcCheckArg(
tstate, PyExc_NameError,
NAME_ERROR_MSG, name);
if (true) goto error;
}
}
}
null = NULL;
}
null = NULL;
STACK_GROW(1);
STACK_GROW(((oparg & 1) ? 1 : 0));
stack_pointer[-1 - (oparg & 1 ? 1 : 0)] = res;
@ -2498,63 +2552,69 @@
PREDICTED(LOAD_SUPER_ATTR);
_Py_CODEUNIT *this_instr = next_instr - 2;
static_assert(INLINE_CACHE_ENTRIES_LOAD_SUPER_ATTR == 1, "incorrect cache size");
PyObject *self;
PyObject *class;
PyObject *global_super;
PyObject *self;
PyObject *attr;
PyObject *null = NULL;
self = stack_pointer[-1];
// _SPECIALIZE_LOAD_SUPER_ATTR
class = stack_pointer[-2];
global_super = stack_pointer[-3];
TIER_ONE_ONLY
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg >> 2);
#if ENABLE_SPECIALIZATION
int load_method = oparg & 1;
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_LoadSuperAttr(global_super, class, next_instr, load_method);
DISPATCH_SAME_OPARG();
}
STAT_INC(LOAD_SUPER_ATTR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
if (opcode == INSTRUMENTED_LOAD_SUPER_ATTR) {
PyObject *arg = oparg & 2 ? class : &_PyInstrumentation_MISSING;
int err = _Py_call_instrumentation_2args(
tstate, PY_MONITORING_EVENT_CALL,
frame, this_instr, global_super, arg);
if (err) goto pop_3_error;
}
// we make no attempt to optimize here; specializations should
// handle any case whose performance we care about
PyObject *stack[] = {class, self};
PyObject *super = PyObject_Vectorcall(global_super, stack, oparg & 2, NULL);
if (opcode == INSTRUMENTED_LOAD_SUPER_ATTR) {
PyObject *arg = oparg & 2 ? class : &_PyInstrumentation_MISSING;
if (super == NULL) {
_Py_call_instrumentation_exc2(
tstate, PY_MONITORING_EVENT_C_RAISE,
frame, this_instr, global_super, arg);
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
int load_method = oparg & 1;
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_LoadSuperAttr(global_super, class, next_instr, load_method);
DISPATCH_SAME_OPARG();
}
else {
STAT_INC(LOAD_SUPER_ATTR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _LOAD_SUPER_ATTR
self = stack_pointer[-1];
{
TIER_ONE_ONLY
if (opcode == INSTRUMENTED_LOAD_SUPER_ATTR) {
PyObject *arg = oparg & 2 ? class : &_PyInstrumentation_MISSING;
int err = _Py_call_instrumentation_2args(
tstate, PY_MONITORING_EVENT_C_RETURN,
frame, this_instr, global_super, arg);
if (err < 0) {
Py_CLEAR(super);
tstate, PY_MONITORING_EVENT_CALL,
frame, this_instr, global_super, arg);
if (err) goto pop_3_error;
}
// we make no attempt to optimize here; specializations should
// handle any case whose performance we care about
PyObject *stack[] = {class, self};
PyObject *super = PyObject_Vectorcall(global_super, stack, oparg & 2, NULL);
if (opcode == INSTRUMENTED_LOAD_SUPER_ATTR) {
PyObject *arg = oparg & 2 ? class : &_PyInstrumentation_MISSING;
if (super == NULL) {
_Py_call_instrumentation_exc2(
tstate, PY_MONITORING_EVENT_C_RAISE,
frame, this_instr, global_super, arg);
}
else {
int err = _Py_call_instrumentation_2args(
tstate, PY_MONITORING_EVENT_C_RETURN,
frame, this_instr, global_super, arg);
if (err < 0) {
Py_CLEAR(super);
}
}
}
Py_DECREF(global_super);
Py_DECREF(class);
Py_DECREF(self);
if (super == NULL) goto pop_3_error;
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg >> 2);
attr = PyObject_GetAttr(super, name);
Py_DECREF(super);
if (attr == NULL) goto pop_3_error;
null = NULL;
}
Py_DECREF(global_super);
Py_DECREF(class);
Py_DECREF(self);
if (super == NULL) goto pop_3_error;
attr = PyObject_GetAttr(super, name);
Py_DECREF(super);
if (attr == NULL) goto pop_3_error;
null = NULL;
STACK_SHRINK(2);
STACK_GROW(((oparg & 1) ? 1 : 0));
stack_pointer[-1 - (oparg & 1 ? 1 : 0)] = attr;
@ -2637,49 +2697,55 @@
PyObject *owner;
PyObject *attr;
PyObject *self_or_null = NULL;
// _SPECIALIZE_LOAD_ATTR
owner = stack_pointer[-1];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg>>1);
next_instr = this_instr;
_Py_Specialize_LoadAttr(owner, next_instr, name);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg>>1);
next_instr = this_instr;
_Py_Specialize_LoadAttr(owner, next_instr, name);
DISPATCH_SAME_OPARG();
}
STAT_INC(LOAD_ATTR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
STAT_INC(LOAD_ATTR, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg >> 1);
if (oparg & 1) {
/* Designed to work in tandem with CALL, pushes two values. */
attr = NULL;
if (_PyObject_GetMethod(owner, name, &attr)) {
/* We can bypass temporary bound method object.
meth is unbound method and obj is self.
meth | self | arg1 | ... | argN
*/
assert(attr != NULL); // No errors on this branch
self_or_null = owner; // Transfer ownership
// _LOAD_ATTR
{
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg >> 1);
if (oparg & 1) {
/* Designed to work in tandem with CALL, pushes two values. */
attr = NULL;
if (_PyObject_GetMethod(owner, name, &attr)) {
/* We can bypass temporary bound method object.
meth is unbound method and obj is self.
meth | self | arg1 | ... | argN
*/
assert(attr != NULL); // No errors on this branch
self_or_null = owner; // Transfer ownership
}
else {
/* meth is not an unbound method (but a regular attr, or
something was returned by a descriptor protocol). Set
the second element of the stack to NULL, to signal
CALL that it's not a method call.
NULL | meth | arg1 | ... | argN
*/
Py_DECREF(owner);
if (attr == NULL) goto pop_1_error;
self_or_null = NULL;
}
}
else {
/* meth is not an unbound method (but a regular attr, or
something was returned by a descriptor protocol). Set
the second element of the stack to NULL, to signal
CALL that it's not a method call.
NULL | meth | arg1 | ... | argN
*/
/* Classic, pushes one value. */
attr = PyObject_GetAttr(owner, name);
Py_DECREF(owner);
if (attr == NULL) goto pop_1_error;
self_or_null = NULL;
}
}
else {
/* Classic, pushes one value. */
attr = PyObject_GetAttr(owner, name);
Py_DECREF(owner);
if (attr == NULL) goto pop_1_error;
}
STACK_GROW(((oparg & 1) ? 1 : 0));
stack_pointer[-1 - (oparg & 1 ? 1 : 0)] = attr;
if (oparg & 1) { stack_pointer[-(oparg & 1 ? 1 : 0)] = self_or_null; }
@ -3076,27 +3142,35 @@
PyObject *right;
PyObject *left;
PyObject *res;
// _SPECIALIZE_COMPARE_OP
right = stack_pointer[-1];
left = stack_pointer[-2];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_CompareOp(left, right, next_instr, oparg);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_CompareOp(left, right, next_instr, oparg);
DISPATCH_SAME_OPARG();
}
STAT_INC(COMPARE_OP, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
STAT_INC(COMPARE_OP, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
assert((oparg >> 5) <= Py_GE);
res = PyObject_RichCompare(left, right, oparg >> 5);
Py_DECREF(left);
Py_DECREF(right);
if (res == NULL) goto pop_2_error;
if (oparg & 16) {
int res_bool = PyObject_IsTrue(res);
Py_DECREF(res);
if (res_bool < 0) goto pop_2_error;
res = res_bool ? Py_True : Py_False;
// _COMPARE_OP
{
assert((oparg >> 5) <= Py_GE);
res = PyObject_RichCompare(left, right, oparg >> 5);
Py_DECREF(left);
Py_DECREF(right);
if (res == NULL) goto pop_2_error;
if (oparg & 16) {
int res_bool = PyObject_IsTrue(res);
Py_DECREF(res);
if (res_bool < 0) goto pop_2_error;
res = res_bool ? Py_True : Py_False;
}
}
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -3630,36 +3704,44 @@
static_assert(INLINE_CACHE_ENTRIES_FOR_ITER == 1, "incorrect cache size");
PyObject *iter;
PyObject *next;
// _SPECIALIZE_FOR_ITER
iter = stack_pointer[-1];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_ForIter(iter, next_instr, oparg);
DISPATCH_SAME_OPARG();
}
STAT_INC(FOR_ITER, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
/* before: [iter]; after: [iter, iter()] *or* [] (and jump over END_FOR.) */
next = (*Py_TYPE(iter)->tp_iternext)(iter);
if (next == NULL) {
if (_PyErr_Occurred(tstate)) {
if (!_PyErr_ExceptionMatches(tstate, PyExc_StopIteration)) {
goto error;
}
monitor_raise(tstate, frame, this_instr);
_PyErr_Clear(tstate);
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_ForIter(iter, next_instr, oparg);
DISPATCH_SAME_OPARG();
}
/* iterator ended normally */
assert(next_instr[oparg].op.code == END_FOR ||
next_instr[oparg].op.code == INSTRUMENTED_END_FOR);
Py_DECREF(iter);
STACK_SHRINK(1);
/* Jump forward oparg, then skip following END_FOR instruction */
JUMPBY(oparg + 1);
DISPATCH();
STAT_INC(FOR_ITER, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
// _FOR_ITER
{
/* before: [iter]; after: [iter, iter()] *or* [] (and jump over END_FOR.) */
next = (*Py_TYPE(iter)->tp_iternext)(iter);
if (next == NULL) {
if (_PyErr_Occurred(tstate)) {
if (!_PyErr_ExceptionMatches(tstate, PyExc_StopIteration)) {
goto error;
}
monitor_raise(tstate, frame, this_instr);
_PyErr_Clear(tstate);
}
/* iterator ended normally */
assert(next_instr[oparg].op.code == END_FOR ||
next_instr[oparg].op.code == INSTRUMENTED_END_FOR);
Py_DECREF(iter);
STACK_SHRINK(1);
/* Jump forward oparg, then skip following END_FOR instruction */
JUMPBY(oparg + 1);
DISPATCH();
}
// Common case: no jump, leave it to the code generator
}
// Common case: no jump, leave it to the code generator
STACK_GROW(1);
stack_pointer[-1] = next;
DISPATCH();
@ -4211,84 +4293,92 @@
PyObject *self_or_null;
PyObject *callable;
PyObject *res;
// _SPECIALIZE_CALL
args = stack_pointer - oparg;
self_or_null = stack_pointer[-1 - oparg];
callable = stack_pointer[-2 - oparg];
// oparg counts all of the args, but *not* self:
int total_args = oparg;
if (self_or_null != NULL) {
args--;
total_args++;
}
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_Call(callable, next_instr, total_args);
DISPATCH_SAME_OPARG();
}
STAT_INC(CALL, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
if (self_or_null == NULL && Py_TYPE(callable) == &PyMethod_Type) {
args--;
total_args++;
PyObject *self = ((PyMethodObject *)callable)->im_self;
args[0] = Py_NewRef(self);
PyObject *method = ((PyMethodObject *)callable)->im_func;
args[-1] = Py_NewRef(method);
Py_DECREF(callable);
callable = method;
}
// Check if the call can be inlined or not
if (Py_TYPE(callable) == &PyFunction_Type &&
tstate->interp->eval_frame == NULL &&
((PyFunctionObject *)callable)->vectorcall == _PyFunction_Vectorcall)
{
int code_flags = ((PyCodeObject*)PyFunction_GET_CODE(callable))->co_flags;
PyObject *locals = code_flags & CO_OPTIMIZED ? NULL : Py_NewRef(PyFunction_GET_GLOBALS(callable));
_PyInterpreterFrame *new_frame = _PyEvalFramePushAndInit(
tstate, (PyFunctionObject *)callable, locals,
args, total_args, NULL
);
// Manipulate stack directly since we leave using DISPATCH_INLINED().
STACK_SHRINK(oparg + 2);
// The frame has stolen all the arguments from the stack,
// so there is no need to clean them up.
if (new_frame == NULL) {
goto error;
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_Call(callable, next_instr, oparg + (self_or_null != NULL));
DISPATCH_SAME_OPARG();
}
assert(1 + INLINE_CACHE_ENTRIES_CALL == next_instr - this_instr);
frame->return_offset = 1 + INLINE_CACHE_ENTRIES_CALL;
DISPATCH_INLINED(new_frame);
STAT_INC(CALL, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
}
/* Callable is not a normal Python function */
res = PyObject_Vectorcall(
callable, args,
total_args | PY_VECTORCALL_ARGUMENTS_OFFSET,
NULL);
if (opcode == INSTRUMENTED_CALL) {
PyObject *arg = total_args == 0 ?
&_PyInstrumentation_MISSING : args[0];
if (res == NULL) {
_Py_call_instrumentation_exc2(
tstate, PY_MONITORING_EVENT_C_RAISE,
frame, this_instr, callable, arg);
// _CALL
{
// oparg counts all of the args, but *not* self:
int total_args = oparg;
if (self_or_null != NULL) {
args--;
total_args++;
}
else {
int err = _Py_call_instrumentation_2args(
tstate, PY_MONITORING_EVENT_C_RETURN,
frame, this_instr, callable, arg);
if (err < 0) {
Py_CLEAR(res);
else if (Py_TYPE(callable) == &PyMethod_Type) {
args--;
total_args++;
PyObject *self = ((PyMethodObject *)callable)->im_self;
args[0] = Py_NewRef(self);
PyObject *method = ((PyMethodObject *)callable)->im_func;
args[-1] = Py_NewRef(method);
Py_DECREF(callable);
callable = method;
}
// Check if the call can be inlined or not
if (Py_TYPE(callable) == &PyFunction_Type &&
tstate->interp->eval_frame == NULL &&
((PyFunctionObject *)callable)->vectorcall == _PyFunction_Vectorcall)
{
int code_flags = ((PyCodeObject*)PyFunction_GET_CODE(callable))->co_flags;
PyObject *locals = code_flags & CO_OPTIMIZED ? NULL : Py_NewRef(PyFunction_GET_GLOBALS(callable));
_PyInterpreterFrame *new_frame = _PyEvalFramePushAndInit(
tstate, (PyFunctionObject *)callable, locals,
args, total_args, NULL
);
// Manipulate stack directly since we leave using DISPATCH_INLINED().
STACK_SHRINK(oparg + 2);
// The frame has stolen all the arguments from the stack,
// so there is no need to clean them up.
if (new_frame == NULL) {
goto error;
}
assert(1 + INLINE_CACHE_ENTRIES_CALL == next_instr - this_instr);
frame->return_offset = 1 + INLINE_CACHE_ENTRIES_CALL;
DISPATCH_INLINED(new_frame);
}
/* Callable is not a normal Python function */
res = PyObject_Vectorcall(
callable, args,
total_args | PY_VECTORCALL_ARGUMENTS_OFFSET,
NULL);
if (opcode == INSTRUMENTED_CALL) {
PyObject *arg = total_args == 0 ?
&_PyInstrumentation_MISSING : args[0];
if (res == NULL) {
_Py_call_instrumentation_exc2(
tstate, PY_MONITORING_EVENT_C_RAISE,
frame, this_instr, callable, arg);
}
else {
int err = _Py_call_instrumentation_2args(
tstate, PY_MONITORING_EVENT_C_RETURN,
frame, this_instr, callable, arg);
if (err < 0) {
Py_CLEAR(res);
}
}
}
assert((res != NULL) ^ (_PyErr_Occurred(tstate) != NULL));
Py_DECREF(callable);
for (int i = 0; i < total_args; i++) {
Py_DECREF(args[i]);
}
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
}
assert((res != NULL) ^ (_PyErr_Occurred(tstate) != NULL));
Py_DECREF(callable);
for (int i = 0; i < total_args; i++) {
Py_DECREF(args[i]);
}
if (res == NULL) { STACK_SHRINK(oparg); goto pop_2_error; }
STACK_SHRINK(oparg);
STACK_SHRINK(1);
stack_pointer[-1] = res;
@ -5505,24 +5595,32 @@
PyObject *rhs;
PyObject *lhs;
PyObject *res;
// _SPECIALIZE_BINARY_OP
rhs = stack_pointer[-1];
lhs = stack_pointer[-2];
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(this_instr[1].cache)) {
next_instr = this_instr;
_Py_Specialize_BinaryOp(lhs, rhs, next_instr, oparg, LOCALS_ARRAY);
DISPATCH_SAME_OPARG();
{
uint16_t counter = read_u16(&this_instr[1].cache);
TIER_ONE_ONLY
#if ENABLE_SPECIALIZATION
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
next_instr = this_instr;
_Py_Specialize_BinaryOp(lhs, rhs, next_instr, oparg, LOCALS_ARRAY);
DISPATCH_SAME_OPARG();
}
STAT_INC(BINARY_OP, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
assert(NB_ADD <= oparg);
assert(oparg <= NB_INPLACE_XOR);
}
// _BINARY_OP
{
assert(_PyEval_BinaryOps[oparg]);
res = _PyEval_BinaryOps[oparg](lhs, rhs);
Py_DECREF(lhs);
Py_DECREF(rhs);
if (res == NULL) goto pop_2_error;
}
STAT_INC(BINARY_OP, deferred);
DECREMENT_ADAPTIVE_COUNTER(this_instr[1].cache);
#endif /* ENABLE_SPECIALIZATION */
assert(NB_ADD <= oparg);
assert(oparg <= NB_INPLACE_XOR);
assert(_PyEval_BinaryOps[oparg]);
res = _PyEval_BinaryOps[oparg](lhs, rhs);
Py_DECREF(lhs);
Py_DECREF(rhs);
if (res == NULL) goto pop_2_error;
STACK_SHRINK(1);
stack_pointer[-1] = res;
DISPATCH();