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GH-135379: Remove types from stack items in code generator. (GH-135384)

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* Make casts explicit in the instruction definitions
This commit is contained in:
Mark Shannon 2025-06-11 15:52:25 +01:00 • committed by GitHub
parent 49d72365cd
commit c87b5b2cb6
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GPG key ID: B5690EEEBB952194
13 changed files with 257 additions and 255 deletions
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26
Include/internal/pycore_stackref.h
View file

@ -264,6 +264,32 @@ PyStackRef_IsNullOrInt(_PyStackRef ref);
static const _PyStackRef PyStackRef_ERROR = { .bits = Py_TAG_INVALID };
/* Wrap a pointer in a stack ref.
* The resulting stack reference is not safe and should only be used
* in the interpreter to pass values from one uop to another.
* The GC should never see one of these stack refs. */
static inline _PyStackRef
PyStackRef_Wrap(void *ptr)
{
assert(ptr != NULL);
#ifdef Py_DEBUG
return (_PyStackRef){ .bits = ((uintptr_t)ptr) | Py_TAG_INVALID };
#else
return (_PyStackRef){ .bits = (uintptr_t)ptr };
#endif
}
static inline void *
PyStackRef_Unwrap(_PyStackRef ref)
{
#ifdef Py_DEBUG
assert ((ref.bits & Py_TAG_BITS) == Py_TAG_INVALID);
return (void *)(ref.bits & ~Py_TAG_BITS);
#else
return (void *)(ref.bits);
#endif
}
static inline bool
PyStackRef_IsError(_PyStackRef ref)
{

38
Lib/test/test_generated_cases.py
View file

@ -56,14 +56,14 @@ class TestEffects(unittest.TestCase):
def test_effect_sizes(self):
stack = Stack()
inputs = [
x := StackItem("x", None, "1"),
y := StackItem("y", None, "oparg"),
z := StackItem("z", None, "oparg*2"),
x := StackItem("x", "1"),
y := StackItem("y", "oparg"),
z := StackItem("z", "oparg*2"),
]
outputs = [
StackItem("x", None, "1"),
StackItem("b", None, "oparg*4"),
StackItem("c", None, "1"),
StackItem("x", "1"),
StackItem("b", "oparg*4"),
StackItem("c", "1"),
]
null = CWriter.null()
stack.pop(z, null)
@ -1103,32 +1103,6 @@ def test_array_of_one(self):
"""
self.run_cases_test(input, output)
def test_pointer_to_stackref(self):
input = """
inst(OP, (arg: _PyStackRef * -- out)) {
out = *arg;
DEAD(arg);
}
"""
output = """
TARGET(OP) {
#if Py_TAIL_CALL_INTERP
int opcode = OP;
(void)(opcode);
#endif
frame->instr_ptr = next_instr;
next_instr += 1;
INSTRUCTION_STATS(OP);
_PyStackRef *arg;
_PyStackRef out;
arg = (_PyStackRef *)stack_pointer[-1].bits;
out = *arg;
stack_pointer[-1] = out;
DISPATCH();
}
"""
self.run_cases_test(input, output)
def test_unused_cached_value(self):
input = """
op(FIRST, (arg1 -- out)) {

4
Misc/NEWS.d/next/Tools-Demos/2025-06-11-12-14-06.gh-issue-135379.25ttXq.rst Normal file
View file

@ -0,0 +1,4 @@
The cases generator no longer accepts type annotations on stack items.
Conversions to non-default types are now done explictly in bytecodes.c and
optimizer_bytecodes.c. This will simplify code generation for top-of-stack
caching and other future features.

63
Python/bytecodes.c
View file

@ -985,12 +985,13 @@ dummy_func(
STAT_INC(BINARY_OP, hit);
}
op(_BINARY_OP_SUBSCR_INIT_CALL, (container, sub, getitem -- new_frame: _PyInterpreterFrame* )) {
new_frame = _PyFrame_PushUnchecked(tstate, getitem, 2, frame);
new_frame->localsplus[0] = container;
new_frame->localsplus[1] = sub;
op(_BINARY_OP_SUBSCR_INIT_CALL, (container, sub, getitem -- new_frame)) {
_PyInterpreterFrame* pushed_frame = _PyFrame_PushUnchecked(tstate, getitem, 2, frame);
pushed_frame->localsplus[0] = container;
pushed_frame->localsplus[1] = sub;
INPUTS_DEAD();
frame->return_offset = INSTRUCTION_SIZE;
new_frame = PyStackRef_Wrap(pushed_frame);
}
macro(BINARY_OP_SUBSCR_GETITEM) =
@ -1296,20 +1297,21 @@ dummy_func(
macro(SEND) = _SPECIALIZE_SEND + _SEND;
op(_SEND_GEN_FRAME, (receiver, v -- receiver, gen_frame: _PyInterpreterFrame *)) {
op(_SEND_GEN_FRAME, (receiver, v -- receiver, gen_frame)) {
PyGenObject *gen = (PyGenObject *)PyStackRef_AsPyObjectBorrow(receiver);
DEOPT_IF(Py_TYPE(gen) != &PyGen_Type && Py_TYPE(gen) != &PyCoro_Type);
DEOPT_IF(gen->gi_frame_state >= FRAME_EXECUTING);
STAT_INC(SEND, hit);
gen_frame = &gen->gi_iframe;
_PyFrame_StackPush(gen_frame, PyStackRef_MakeHeapSafe(v));
_PyInterpreterFrame *pushed_frame = &gen->gi_iframe;
_PyFrame_StackPush(pushed_frame, PyStackRef_MakeHeapSafe(v));
DEAD(v);
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
assert(INSTRUCTION_SIZE + oparg <= UINT16_MAX);
frame->return_offset = (uint16_t)(INSTRUCTION_SIZE + oparg);
gen_frame->previous = frame;
pushed_frame->previous = frame;
gen_frame = PyStackRef_Wrap(pushed_frame);
}
macro(SEND_GEN) =
@ -2463,7 +2465,7 @@ dummy_func(
_LOAD_ATTR_CLASS +
_PUSH_NULL_CONDITIONAL;
op(_LOAD_ATTR_PROPERTY_FRAME, (fget/4, owner -- new_frame: _PyInterpreterFrame *)) {
op(_LOAD_ATTR_PROPERTY_FRAME, (fget/4, owner -- new_frame)) {
assert((oparg & 1) == 0);
assert(Py_IS_TYPE(fget, &PyFunction_Type));
PyFunctionObject *f = (PyFunctionObject *)fget;
@ -2473,9 +2475,10 @@ dummy_func(
DEOPT_IF(code->co_argcount != 1);
DEOPT_IF(!_PyThreadState_HasStackSpace(tstate, code->co_framesize));
STAT_INC(LOAD_ATTR, hit);
new_frame = _PyFrame_PushUnchecked(tstate, PyStackRef_FromPyObjectNew(fget), 1, frame);
new_frame->localsplus[0] = owner;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, PyStackRef_FromPyObjectNew(fget), 1, frame);
pushed_frame->localsplus[0] = owner;
DEAD(owner);
new_frame = PyStackRef_Wrap(pushed_frame);
}
macro(LOAD_ATTR_PROPERTY) =
@ -3344,7 +3347,7 @@ dummy_func(
_ITER_JUMP_RANGE +
_ITER_NEXT_RANGE;
op(_FOR_ITER_GEN_FRAME, (iter, null -- iter, null, gen_frame: _PyInterpreterFrame*)) {
op(_FOR_ITER_GEN_FRAME, (iter, null -- iter, null, gen_frame)) {
PyGenObject *gen = (PyGenObject *)PyStackRef_AsPyObjectBorrow(iter);
DEOPT_IF(Py_TYPE(gen) != &PyGen_Type);
#ifdef Py_GIL_DISABLED
@ -3356,14 +3359,15 @@ dummy_func(
#endif
DEOPT_IF(gen->gi_frame_state >= FRAME_EXECUTING);
STAT_INC(FOR_ITER, hit);
gen_frame = &gen->gi_iframe;
_PyFrame_StackPush(gen_frame, PyStackRef_None);
_PyInterpreterFrame *pushed_frame = &gen->gi_iframe;
_PyFrame_StackPush(pushed_frame, PyStackRef_None);
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
gen_frame->previous = frame;
pushed_frame->previous = frame;
// oparg is the return offset from the next instruction.
frame->return_offset = (uint16_t)(INSTRUCTION_SIZE + oparg);
gen_frame = PyStackRef_Wrap(pushed_frame);
}
macro(FOR_ITER_GEN) =
@ -3715,7 +3719,7 @@ dummy_func(
macro(CALL) = _SPECIALIZE_CALL + unused/2 + _MAYBE_EXPAND_METHOD + _DO_CALL + _CHECK_PERIODIC;
macro(INSTRUMENTED_CALL) = unused/3 + _MAYBE_EXPAND_METHOD + _MONITOR_CALL + _DO_CALL + _CHECK_PERIODIC;
op(_PY_FRAME_GENERAL, (callable, self_or_null, args[oparg] -- new_frame: _PyInterpreterFrame*)) {
op(_PY_FRAME_GENERAL, (callable, self_or_null, args[oparg] -- new_frame)) {
PyObject *callable_o = PyStackRef_AsPyObjectBorrow(callable);
// oparg counts all of the args, but *not* self:
@ -3737,7 +3741,7 @@ dummy_func(
if (temp == NULL) {
ERROR_NO_POP();
}
new_frame = temp;
new_frame = PyStackRef_Wrap(temp);
}
op(_CHECK_FUNCTION_VERSION, (func_version/2, callable, unused, unused[oparg] -- callable, unused, unused[oparg])) {
@ -3874,27 +3878,26 @@ dummy_func(
DEOPT_IF(tstate->py_recursion_remaining <= 1);
}
replicate(5) pure op(_INIT_CALL_PY_EXACT_ARGS, (callable, self_or_null, args[oparg] -- new_frame: _PyInterpreterFrame*)) {
replicate(5) pure op(_INIT_CALL_PY_EXACT_ARGS, (callable, self_or_null, args[oparg] -- new_frame)) {
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
INPUTS_DEAD();
new_frame = PyStackRef_Wrap(pushed_frame);
}
op(_PUSH_FRAME, (new_frame: _PyInterpreterFrame* -- )) {
// Write it out explicitly because it's subtly different.
// Eventually this should be the only occurrence of this code.
op(_PUSH_FRAME, (new_frame -- )) {
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
DEAD(new_frame);
SYNC_SP();
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -4046,7 +4049,7 @@ dummy_func(
PyStackRef_CLOSE(temp);
}
op(_CREATE_INIT_FRAME, (init, self, args[oparg] -- init_frame: _PyInterpreterFrame *)) {
op(_CREATE_INIT_FRAME, (init, self, args[oparg] -- init_frame)) {
_PyInterpreterFrame *shim = _PyFrame_PushTrampolineUnchecked(
tstate, (PyCodeObject *)&_Py_InitCleanup, 1, frame);
assert(_PyFrame_GetBytecode(shim)[0].op.code == EXIT_INIT_CHECK);
@ -4063,12 +4066,12 @@ dummy_func(
_PyEval_FrameClearAndPop(tstate, shim);
ERROR_NO_POP();
}
init_frame = temp;
frame->return_offset = 1 + INLINE_CACHE_ENTRIES_CALL;
/* Account for pushing the extra frame.
* We don't check recursion depth here,
* as it will be checked after start_frame */
tstate->py_recursion_remaining--;
init_frame = PyStackRef_Wrap(temp);
}
macro(CALL_ALLOC_AND_ENTER_INIT) =
@ -4594,7 +4597,7 @@ dummy_func(
res = PyStackRef_FromPyObjectSteal(res_o);
}
op(_PY_FRAME_KW, (callable, self_or_null, args[oparg], kwnames -- new_frame: _PyInterpreterFrame*)) {
op(_PY_FRAME_KW, (callable, self_or_null, args[oparg], kwnames -- new_frame)) {
PyObject *callable_o = PyStackRef_AsPyObjectBorrow(callable);
// oparg counts all of the args, but *not* self:
@ -4621,7 +4624,7 @@ dummy_func(
DEAD(callable);
SYNC_SP();
ERROR_IF(temp == NULL);
new_frame = temp;
new_frame = PyStackRef_Wrap(temp);
}
op(_CHECK_FUNCTION_VERSION_KW, (func_version/2, callable, unused, unused[oparg], unused -- callable, unused, unused[oparg], unused)) {

134
Python/executor_cases.c.h generated
View file

@ -1551,15 +1551,16 @@
_PyStackRef getitem;
_PyStackRef sub;
_PyStackRef container;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
getitem = stack_pointer[-1];
sub = stack_pointer[-2];
container = stack_pointer[-3];
new_frame = _PyFrame_PushUnchecked(tstate, getitem, 2, frame);
new_frame->localsplus[0] = container;
new_frame->localsplus[1] = sub;
_PyInterpreterFrame* pushed_frame = _PyFrame_PushUnchecked(tstate, getitem, 2, frame);
pushed_frame->localsplus[0] = container;
pushed_frame->localsplus[1] = sub;
frame->return_offset = 6 ;
stack_pointer[-3].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-3] = new_frame;
stack_pointer += -2;
assert(WITHIN_STACK_BOUNDS());
break;
@ -1907,7 +1908,7 @@
case _SEND_GEN_FRAME: {
_PyStackRef v;
_PyStackRef receiver;
_PyInterpreterFrame *gen_frame;
_PyStackRef gen_frame;
oparg = CURRENT_OPARG();
v = stack_pointer[-1];
receiver = stack_pointer[-2];
@ -1921,15 +1922,16 @@
JUMP_TO_JUMP_TARGET();
}
STAT_INC(SEND, hit);
gen_frame = &gen->gi_iframe;
_PyFrame_StackPush(gen_frame, PyStackRef_MakeHeapSafe(v));
_PyInterpreterFrame *pushed_frame = &gen->gi_iframe;
_PyFrame_StackPush(pushed_frame, PyStackRef_MakeHeapSafe(v));
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
assert( 2 + oparg <= UINT16_MAX);
frame->return_offset = (uint16_t)( 2 + oparg);
gen_frame->previous = frame;
stack_pointer[-1].bits = (uintptr_t)gen_frame;
pushed_frame->previous = frame;
gen_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-1] = gen_frame;
break;
}
@ -3471,7 +3473,7 @@
case _LOAD_ATTR_PROPERTY_FRAME: {
_PyStackRef owner;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = CURRENT_OPARG();
owner = stack_pointer[-1];
PyObject *fget = (PyObject *)CURRENT_OPERAND0();
@ -3496,9 +3498,10 @@
JUMP_TO_JUMP_TARGET();
}
STAT_INC(LOAD_ATTR, hit);
new_frame = _PyFrame_PushUnchecked(tstate, PyStackRef_FromPyObjectNew(fget), 1, frame);
new_frame->localsplus[0] = owner;
stack_pointer[-1].bits = (uintptr_t)new_frame;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, PyStackRef_FromPyObjectNew(fget), 1, frame);
pushed_frame->localsplus[0] = owner;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-1] = new_frame;
break;
}
@ -4467,7 +4470,7 @@
case _FOR_ITER_GEN_FRAME: {
_PyStackRef iter;
_PyInterpreterFrame *gen_frame;
_PyStackRef gen_frame;
oparg = CURRENT_OPARG();
iter = stack_pointer[-2];
PyGenObject *gen = (PyGenObject *)PyStackRef_AsPyObjectBorrow(iter);
@ -4487,14 +4490,15 @@
JUMP_TO_JUMP_TARGET();
}
STAT_INC(FOR_ITER, hit);
gen_frame = &gen->gi_iframe;
_PyFrame_StackPush(gen_frame, PyStackRef_None);
_PyInterpreterFrame *pushed_frame = &gen->gi_iframe;
_PyFrame_StackPush(pushed_frame, PyStackRef_None);
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
gen_frame->previous = frame;
pushed_frame->previous = frame;
frame->return_offset = (uint16_t)( 2 + oparg);
stack_pointer[0].bits = (uintptr_t)gen_frame;
gen_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[0] = gen_frame;
stack_pointer += 1;
assert(WITHIN_STACK_BOUNDS());
break;
@ -4775,7 +4779,7 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = CURRENT_OPARG();
args = &stack_pointer[-oparg];
self_or_null = stack_pointer[-1 - oparg];
@ -4800,8 +4804,8 @@
if (temp == NULL) {
JUMP_TO_ERROR();
}
new_frame = temp;
stack_pointer[0].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(temp);
stack_pointer[0] = new_frame;
stack_pointer += 1;
assert(WITHIN_STACK_BOUNDS());
break;
@ -5067,7 +5071,7 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = 0;
assert(oparg == CURRENT_OPARG());
args = &stack_pointer[-oparg];
@ -5075,13 +5079,14 @@
callable = stack_pointer[-2 - oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
stack_pointer[-2 - oparg].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
@ -5091,7 +5096,7 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = 1;
assert(oparg == CURRENT_OPARG());
args = &stack_pointer[-oparg];
@ -5099,13 +5104,14 @@
callable = stack_pointer[-2 - oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
stack_pointer[-2 - oparg].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
@ -5115,7 +5121,7 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = 2;
assert(oparg == CURRENT_OPARG());
args = &stack_pointer[-oparg];
@ -5123,13 +5129,14 @@
callable = stack_pointer[-2 - oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
stack_pointer[-2 - oparg].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
@ -5139,7 +5146,7 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = 3;
assert(oparg == CURRENT_OPARG());
args = &stack_pointer[-oparg];
@ -5147,13 +5154,14 @@
callable = stack_pointer[-2 - oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
stack_pointer[-2 - oparg].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
@ -5163,7 +5171,7 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = 4;
assert(oparg == CURRENT_OPARG());
args = &stack_pointer[-oparg];
@ -5171,13 +5179,14 @@
callable = stack_pointer[-2 - oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
stack_pointer[-2 - oparg].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
@ -5187,34 +5196,35 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = CURRENT_OPARG();
args = &stack_pointer[-oparg];
self_or_null = stack_pointer[-1 - oparg];
callable = stack_pointer[-2 - oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
stack_pointer[-2 - oparg].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(pushed_frame);
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
}
case _PUSH_FRAME: {
_PyInterpreterFrame *new_frame;
new_frame = (_PyInterpreterFrame *)stack_pointer[-1].bits;
_PyStackRef new_frame;
new_frame = stack_pointer[-1];
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -5429,7 +5439,7 @@
_PyStackRef *args;
_PyStackRef self;
_PyStackRef init;
_PyInterpreterFrame *init_frame;
_PyStackRef init_frame;
oparg = CURRENT_OPARG();
args = &stack_pointer[-oparg];
self = stack_pointer[-1 - oparg];
@ -5453,10 +5463,10 @@
stack_pointer = _PyFrame_GetStackPointer(frame);
JUMP_TO_ERROR();
}
init_frame = temp;
frame->return_offset = 1 + INLINE_CACHE_ENTRIES_CALL;
tstate->py_recursion_remaining--;
stack_pointer[0].bits = (uintptr_t)init_frame;
init_frame = PyStackRef_Wrap(temp);
stack_pointer[0] = init_frame;
stack_pointer += 1;
assert(WITHIN_STACK_BOUNDS());
break;
@ -6309,7 +6319,7 @@
_PyStackRef *args;
_PyStackRef self_or_null;
_PyStackRef callable;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
oparg = CURRENT_OPARG();
kwnames = stack_pointer[-1];
args = &stack_pointer[-1 - oparg];
@ -6343,8 +6353,8 @@
if (temp == NULL) {
JUMP_TO_ERROR();
}
new_frame = temp;
stack_pointer[0].bits = (uintptr_t)new_frame;
new_frame = PyStackRef_Wrap(temp);
stack_pointer[0] = new_frame;
stack_pointer += 1;
assert(WITHIN_STACK_BOUNDS());
break;

122
Python/generated_cases.c.h generated
View file

@ -604,7 +604,7 @@
_PyStackRef container;
_PyStackRef getitem;
_PyStackRef sub;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 5 cache entries */
// _CHECK_PEP_523
{
@ -650,19 +650,20 @@
// _BINARY_OP_SUBSCR_INIT_CALL
{
sub = stack_pointer[-1];
new_frame = _PyFrame_PushUnchecked(tstate, getitem, 2, frame);
new_frame->localsplus[0] = container;
new_frame->localsplus[1] = sub;
_PyInterpreterFrame* pushed_frame = _PyFrame_PushUnchecked(tstate, getitem, 2, frame);
pushed_frame->localsplus[0] = container;
pushed_frame->localsplus[1] = sub;
frame->return_offset = 6 ;
new_frame = PyStackRef_Wrap(pushed_frame);
}
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
stack_pointer += -2;
assert(WITHIN_STACK_BOUNDS());
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -1708,8 +1709,8 @@
_PyStackRef init;
_PyStackRef self;
_PyStackRef *args;
_PyInterpreterFrame *init_frame;
_PyInterpreterFrame *new_frame;
_PyStackRef init_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -1792,17 +1793,17 @@
stack_pointer = _PyFrame_GetStackPointer(frame);
JUMP_TO_LABEL(error);
}
init_frame = temp;
frame->return_offset = 1 + INLINE_CACHE_ENTRIES_CALL;
tstate->py_recursion_remaining--;
init_frame = PyStackRef_Wrap(temp);
}
// _PUSH_FRAME
{
new_frame = init_frame;
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -1828,7 +1829,7 @@
_PyStackRef null;
_PyStackRef self_or_null;
_PyStackRef *args;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -1921,12 +1922,13 @@
args = &stack_pointer[-oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
new_frame = PyStackRef_Wrap(pushed_frame);
}
// _SAVE_RETURN_OFFSET
{
@ -1940,11 +1942,11 @@
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
stack_pointer += -2 - oparg;
assert(WITHIN_STACK_BOUNDS());
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -1970,7 +1972,7 @@
_PyStackRef null;
_PyStackRef self_or_null;
_PyStackRef *args;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -2056,7 +2058,7 @@
if (temp == NULL) {
JUMP_TO_LABEL(error);
}
new_frame = temp;
new_frame = PyStackRef_Wrap(temp);
}
// _SAVE_RETURN_OFFSET
{
@ -2070,9 +2072,9 @@
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -3040,7 +3042,7 @@
_PyStackRef self_or_null;
_PyStackRef *args;
_PyStackRef kwnames;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -3127,7 +3129,7 @@
if (temp == NULL) {
JUMP_TO_LABEL(error);
}
new_frame = temp;
new_frame = PyStackRef_Wrap(temp);
}
// _SAVE_RETURN_OFFSET
{
@ -3141,9 +3143,9 @@
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -3304,7 +3306,7 @@
_PyStackRef self_or_null;
_PyStackRef *args;
_PyStackRef kwnames;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -3364,7 +3366,7 @@
if (temp == NULL) {
JUMP_TO_LABEL(error);
}
new_frame = temp;
new_frame = PyStackRef_Wrap(temp);
}
// _SAVE_RETURN_OFFSET
{
@ -3378,9 +3380,9 @@
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -4163,7 +4165,7 @@
_PyStackRef callable;
_PyStackRef self_or_null;
_PyStackRef *args;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -4227,12 +4229,13 @@
args = &stack_pointer[-oparg];
int has_self = !PyStackRef_IsNull(self_or_null);
STAT_INC(CALL, hit);
new_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = new_frame->localsplus + has_self;
new_frame->localsplus[0] = self_or_null;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, callable, oparg + has_self, frame);
_PyStackRef *first_non_self_local = pushed_frame->localsplus + has_self;
pushed_frame->localsplus[0] = self_or_null;
for (int i = 0; i < oparg; i++) {
first_non_self_local[i] = args[i];
}
new_frame = PyStackRef_Wrap(pushed_frame);
}
// _SAVE_RETURN_OFFSET
{
@ -4246,11 +4249,11 @@
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
stack_pointer += -2 - oparg;
assert(WITHIN_STACK_BOUNDS());
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -4275,7 +4278,7 @@
_PyStackRef callable;
_PyStackRef self_or_null;
_PyStackRef *args;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -4334,7 +4337,7 @@
if (temp == NULL) {
JUMP_TO_LABEL(error);
}
new_frame = temp;
new_frame = PyStackRef_Wrap(temp);
}
// _SAVE_RETURN_OFFSET
{
@ -4348,9 +4351,9 @@
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -5785,8 +5788,8 @@
INSTRUCTION_STATS(FOR_ITER_GEN);
static_assert(INLINE_CACHE_ENTRIES_FOR_ITER == 1, "incorrect cache size");
_PyStackRef iter;
_PyInterpreterFrame *gen_frame;
_PyInterpreterFrame *new_frame;
_PyStackRef gen_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -5818,21 +5821,22 @@
JUMP_TO_PREDICTED(FOR_ITER);
}
STAT_INC(FOR_ITER, hit);
gen_frame = &gen->gi_iframe;
_PyFrame_StackPush(gen_frame, PyStackRef_None);
_PyInterpreterFrame *pushed_frame = &gen->gi_iframe;
_PyFrame_StackPush(pushed_frame, PyStackRef_None);
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
gen_frame->previous = frame;
pushed_frame->previous = frame;
frame->return_offset = (uint16_t)( 2 + oparg);
gen_frame = PyStackRef_Wrap(pushed_frame);
}
// _PUSH_FRAME
{
new_frame = gen_frame;
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -8650,7 +8654,7 @@
INSTRUCTION_STATS(LOAD_ATTR_PROPERTY);
static_assert(INLINE_CACHE_ENTRIES_LOAD_ATTR == 9, "incorrect cache size");
_PyStackRef owner;
_PyInterpreterFrame *new_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -8701,8 +8705,9 @@
JUMP_TO_PREDICTED(LOAD_ATTR);
}
STAT_INC(LOAD_ATTR, hit);
new_frame = _PyFrame_PushUnchecked(tstate, PyStackRef_FromPyObjectNew(fget), 1, frame);
new_frame->localsplus[0] = owner;
_PyInterpreterFrame *pushed_frame = _PyFrame_PushUnchecked(tstate, PyStackRef_FromPyObjectNew(fget), 1, frame);
pushed_frame->localsplus[0] = owner;
new_frame = PyStackRef_Wrap(pushed_frame);
}
// _SAVE_RETURN_OFFSET
{
@ -8716,11 +8721,11 @@
// _PUSH_FRAME
{
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;
@ -10661,8 +10666,8 @@
static_assert(INLINE_CACHE_ENTRIES_SEND == 1, "incorrect cache size");
_PyStackRef receiver;
_PyStackRef v;
_PyInterpreterFrame *gen_frame;
_PyInterpreterFrame *new_frame;
_PyStackRef gen_frame;
_PyStackRef new_frame;
/* Skip 1 cache entry */
// _CHECK_PEP_523
{
@ -10688,24 +10693,25 @@
JUMP_TO_PREDICTED(SEND);
}
STAT_INC(SEND, hit);
gen_frame = &gen->gi_iframe;
_PyFrame_StackPush(gen_frame, PyStackRef_MakeHeapSafe(v));
_PyInterpreterFrame *pushed_frame = &gen->gi_iframe;
_PyFrame_StackPush(pushed_frame, PyStackRef_MakeHeapSafe(v));
gen->gi_frame_state = FRAME_EXECUTING;
gen->gi_exc_state.previous_item = tstate->exc_info;
tstate->exc_info = &gen->gi_exc_state;
assert( 2 + oparg <= UINT16_MAX);
frame->return_offset = (uint16_t)( 2 + oparg);
gen_frame->previous = frame;
pushed_frame->previous = frame;
gen_frame = PyStackRef_Wrap(pushed_frame);
}
// _PUSH_FRAME
{
new_frame = gen_frame;
assert(tstate->interp->eval_frame == NULL);
_PyInterpreterFrame *temp = new_frame;
_PyInterpreterFrame *temp = PyStackRef_Unwrap(new_frame);
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
_PyFrame_SetStackPointer(frame, stack_pointer);
assert(new_frame->previous == frame || new_frame->previous->previous == frame);
assert(temp->previous == frame || temp->previous->previous == frame);
CALL_STAT_INC(inlined_py_calls);
frame = tstate->current_frame = temp;
tstate->py_recursion_remaining--;

29
Python/optimizer_bytecodes.c
View file

@ -373,7 +373,7 @@ dummy_func(void) {
GETLOCAL(this_instr->operand0) = res;
}
op(_BINARY_OP_SUBSCR_INIT_CALL, (container, sub, getitem -- new_frame: _Py_UOpsAbstractFrame *)) {
op(_BINARY_OP_SUBSCR_INIT_CALL, (container, sub, getitem -- new_frame)) {
new_frame = NULL;
ctx->done = true;
}
@ -697,7 +697,7 @@ dummy_func(void) {
self = owner;
}
op(_LOAD_ATTR_PROPERTY_FRAME, (fget/4, owner -- new_frame: _Py_UOpsAbstractFrame *)) {
op(_LOAD_ATTR_PROPERTY_FRAME, (fget/4, owner -- new_frame)) {
(void)fget;
new_frame = NULL;
ctx->done = true;
@ -735,7 +735,7 @@ dummy_func(void) {
sym_set_type(callable, &PyMethod_Type);
}
op(_INIT_CALL_PY_EXACT_ARGS, (callable, self_or_null, args[oparg] -- new_frame: _Py_UOpsAbstractFrame *)) {
op(_INIT_CALL_PY_EXACT_ARGS, (callable, self_or_null, args[oparg] -- new_frame)) {
int argcount = oparg;
PyCodeObject *co = NULL;
@ -756,10 +756,9 @@ dummy_func(void) {
}
if (sym_is_null(self_or_null) || sym_is_not_null(self_or_null)) {
new_frame = frame_new(ctx, co, 0, args, argcount);
new_frame = (JitOptSymbol *)frame_new(ctx, co, 0, args, argcount);
} else {
new_frame = frame_new(ctx, co, 0, NULL, 0);
new_frame = (JitOptSymbol *)frame_new(ctx, co, 0, NULL, 0);
}
}
@ -769,7 +768,7 @@ dummy_func(void) {
self_or_null = sym_new_not_null(ctx);
}
op(_PY_FRAME_GENERAL, (callable, self_or_null, args[oparg] -- new_frame: _Py_UOpsAbstractFrame *)) {
op(_PY_FRAME_GENERAL, (callable, self_or_null, args[oparg] -- new_frame)) {
PyCodeObject *co = NULL;
assert((this_instr + 2)->opcode == _PUSH_FRAME);
co = get_code_with_logging((this_instr + 2));
@ -778,10 +777,10 @@ dummy_func(void) {
break;
}
new_frame = frame_new(ctx, co, 0, NULL, 0);
new_frame = (JitOptSymbol *)frame_new(ctx, co, 0, NULL, 0);
}
op(_PY_FRAME_KW, (callable, self_or_null, args[oparg], kwnames -- new_frame: _Py_UOpsAbstractFrame *)) {
op(_PY_FRAME_KW, (callable, self_or_null, args[oparg], kwnames -- new_frame)) {
new_frame = NULL;
ctx->done = true;
}
@ -793,7 +792,7 @@ dummy_func(void) {
self_or_null = sym_new_not_null(ctx);
}
op(_CREATE_INIT_FRAME, (init, self, args[oparg] -- init_frame: _Py_UOpsAbstractFrame *)) {
op(_CREATE_INIT_FRAME, (init, self, args[oparg] -- init_frame)) {
init_frame = NULL;
ctx->done = true;
}
@ -860,13 +859,13 @@ dummy_func(void) {
}
}
op(_FOR_ITER_GEN_FRAME, (unused, unused -- unused, unused, gen_frame: _Py_UOpsAbstractFrame*)) {
op(_FOR_ITER_GEN_FRAME, (unused, unused -- unused, unused, gen_frame)) {
gen_frame = NULL;
/* We are about to hit the end of the trace */
ctx->done = true;
}
op(_SEND_GEN_FRAME, (unused, unused -- unused, gen_frame: _Py_UOpsAbstractFrame *)) {
op(_SEND_GEN_FRAME, (unused, unused -- unused, gen_frame)) {
gen_frame = NULL;
// We are about to hit the end of the trace:
ctx->done = true;
@ -884,12 +883,12 @@ dummy_func(void) {
Py_UNREACHABLE();
}
op(_PUSH_FRAME, (new_frame: _Py_UOpsAbstractFrame * -- )) {
op(_PUSH_FRAME, (new_frame -- )) {
SYNC_SP();
ctx->frame->stack_pointer = stack_pointer;
ctx->frame = new_frame;
ctx->frame = (_Py_UOpsAbstractFrame *)new_frame;
ctx->curr_frame_depth++;
stack_pointer = new_frame->stack_pointer;
stack_pointer = ctx->frame->stack_pointer;
co = get_code(this_instr);
if (co == NULL) {
// should be about to _EXIT_TRACE anyway

46
Python/optimizer_cases.c.h generated
View file

@ -715,10 +715,10 @@
}
case _BINARY_OP_SUBSCR_INIT_CALL: {
_Py_UOpsAbstractFrame *new_frame;
JitOptSymbol *new_frame;
new_frame = NULL;
ctx->done = true;
stack_pointer[-3] = (JitOptSymbol *)new_frame;
stack_pointer[-3] = new_frame;
stack_pointer += -2;
assert(WITHIN_STACK_BOUNDS());
break;
@ -829,10 +829,10 @@
/* _SEND is not a viable micro-op for tier 2 */
case _SEND_GEN_FRAME: {
_Py_UOpsAbstractFrame *gen_frame;
JitOptSymbol *gen_frame;
gen_frame = NULL;
ctx->done = true;
stack_pointer[-1] = (JitOptSymbol *)gen_frame;
stack_pointer[-1] = gen_frame;
break;
}
@ -1323,12 +1323,12 @@
}
case _LOAD_ATTR_PROPERTY_FRAME: {
_Py_UOpsAbstractFrame *new_frame;
JitOptSymbol *new_frame;
PyObject *fget = (PyObject *)this_instr->operand0;
(void)fget;
new_frame = NULL;
ctx->done = true;
stack_pointer[-1] = (JitOptSymbol *)new_frame;
stack_pointer[-1] = new_frame;
break;
}
@ -1685,10 +1685,10 @@
}
case _FOR_ITER_GEN_FRAME: {
_Py_UOpsAbstractFrame *gen_frame;
JitOptSymbol *gen_frame;
gen_frame = NULL;
ctx->done = true;
stack_pointer[0] = (JitOptSymbol *)gen_frame;
stack_pointer[0] = gen_frame;
stack_pointer += 1;
assert(WITHIN_STACK_BOUNDS());
break;
@ -1857,7 +1857,7 @@
/* _MONITOR_CALL is not a viable micro-op for tier 2 */
case _PY_FRAME_GENERAL: {
_Py_UOpsAbstractFrame *new_frame;
JitOptSymbol *new_frame;
PyCodeObject *co = NULL;
assert((this_instr + 2)->opcode == _PUSH_FRAME);
co = get_code_with_logging((this_instr + 2));
@ -1865,8 +1865,8 @@
ctx->done = true;
break;
}
new_frame = frame_new(ctx, co, 0, NULL, 0);
stack_pointer[-2 - oparg] = (JitOptSymbol *)new_frame;
new_frame = (JitOptSymbol *)frame_new(ctx, co, 0, NULL, 0);
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
@ -1970,7 +1970,7 @@
case _INIT_CALL_PY_EXACT_ARGS: {
JitOptSymbol **args;
JitOptSymbol *self_or_null;
_Py_UOpsAbstractFrame *new_frame;
JitOptSymbol *new_frame;
args = &stack_pointer[-oparg];
self_or_null = stack_pointer[-1 - oparg];
int argcount = oparg;
@ -1988,25 +1988,25 @@
argcount++;
}
if (sym_is_null(self_or_null) || sym_is_not_null(self_or_null)) {
new_frame = frame_new(ctx, co, 0, args, argcount);
new_frame = (JitOptSymbol *)frame_new(ctx, co, 0, args, argcount);
} else {
new_frame = frame_new(ctx, co, 0, NULL, 0);
new_frame = (JitOptSymbol *)frame_new(ctx, co, 0, NULL, 0);
}
stack_pointer[-2 - oparg] = (JitOptSymbol *)new_frame;
stack_pointer[-2 - oparg] = new_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
}
case _PUSH_FRAME: {
_Py_UOpsAbstractFrame *new_frame;
new_frame = (_Py_UOpsAbstractFrame *)stack_pointer[-1];
JitOptSymbol *new_frame;
new_frame = stack_pointer[-1];
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
ctx->frame->stack_pointer = stack_pointer;
ctx->frame = new_frame;
ctx->frame = (_Py_UOpsAbstractFrame *)new_frame;
ctx->curr_frame_depth++;
stack_pointer = new_frame->stack_pointer;
stack_pointer = ctx->frame->stack_pointer;
co = get_code(this_instr);
if (co == NULL) {
ctx->done = true;
@ -2159,10 +2159,10 @@
}
case _CREATE_INIT_FRAME: {
_Py_UOpsAbstractFrame *init_frame;
JitOptSymbol *init_frame;
init_frame = NULL;
ctx->done = true;
stack_pointer[-2 - oparg] = (JitOptSymbol *)init_frame;
stack_pointer[-2 - oparg] = init_frame;
stack_pointer += -1 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;
@ -2326,10 +2326,10 @@
/* _DO_CALL_KW is not a viable micro-op for tier 2 */
case _PY_FRAME_KW: {
_Py_UOpsAbstractFrame *new_frame;
JitOptSymbol *new_frame;
new_frame = NULL;
ctx->done = true;
stack_pointer[-3 - oparg] = (JitOptSymbol *)new_frame;
stack_pointer[-3 - oparg] = new_frame;
stack_pointer += -2 - oparg;
assert(WITHIN_STACK_BOUNDS());
break;

10
Tools/cases_generator/analyzer.py
View file

@ -135,15 +135,13 @@ def size(self) -> int:
@dataclass
class StackItem:
name: str
type: str | None
size: str
peek: bool = False
used: bool = False
def __str__(self) -> str:
size = f"[{self.size}]" if self.size else ""
type = "" if self.type is None else f"{self.type} "
return f"{type}{self.name}{size} {self.peek}"
return f"{self.name}{size} {self.peek}"
def is_array(self) -> bool:
return self.size != ""
@ -345,7 +343,7 @@ def override_error(
def convert_stack_item(
item: parser.StackEffect, replace_op_arg_1: str | None
) -> StackItem:
return StackItem(item.name, item.type, item.size)
return StackItem(item.name, item.size)
def check_unused(stack: list[StackItem], input_names: dict[str, lexer.Token]) -> None:
"Unused items cannot be on the stack above used, non-peek items"
@ -683,6 +681,8 @@ def has_error_without_pop(op: parser.CodeDef) -> bool:
"PyStackRef_IsNullOrInt",
"PyStackRef_IsError",
"PyStackRef_IsValid",
"PyStackRef_Wrap",
"PyStackRef_Unwrap",
)
@ -811,7 +811,7 @@ def stack_effect_only_peeks(instr: parser.InstDef) -> bool:
if len(stack_inputs) == 0:
return False
return all(
(s.name == other.name and s.type == other.type and s.size == other.size)
(s.name == other.name and s.size == other.size)
for s, other in zip(stack_inputs, instr.outputs)
)

4
Tools/cases_generator/generators_common.py
View file

@ -56,9 +56,7 @@ def root_relative_path(filename: str) -> str:
def type_and_null(var: StackItem) -> tuple[str, str]:
if var.type:
return var.type, "NULL"
elif var.is_array():
if var.is_array():
return "_PyStackRef *", "NULL"
else:
return "_PyStackRef", "PyStackRef_NULL"

4
Tools/cases_generator/optimizer_generator.py
View file

@ -73,8 +73,6 @@ def validate_uop(override: Uop, uop: Uop) -> None:
def type_name(var: StackItem) -> str:
if var.is_array():
return "JitOptSymbol **"
if var.type:
return var.type
return "JitOptSymbol *"
@ -230,7 +228,7 @@ def generate_abstract_interpreter(
declare_variables(override, out, skip_inputs=False)
else:
declare_variables(uop, out, skip_inputs=True)
stack = Stack(extract_bits=False, cast_type="JitOptSymbol *")
stack = Stack()
write_uop(override, uop, out, stack, debug, skip_inputs=(override is None))
out.start_line()
out.emit("break;\n")

12
Tools/cases_generator/parsing.py
View file

@ -247,12 +247,11 @@ def accept(self, visitor: Visitor) -> None:
@dataclass
class StackEffect(Node):
name: str = field(compare=False) # __eq__ only uses type, cond, size
type: str = "" # Optional `:type`
size: str = "" # Optional `[size]`
# Note: size cannot be combined with type or cond
def __repr__(self) -> str:
items = [self.name, self.type, self.size]
items = [self.name, self.size]
while items and items[-1] == "":
del items[-1]
return f"StackEffect({', '.join(repr(item) for item in items)})"
@ -463,20 +462,13 @@ def stack_effect(self) -> StackEffect | None:
# IDENTIFIER [':' IDENTIFIER [TIMES]] ['if' '(' expression ')']
# | IDENTIFIER '[' expression ']'
if tkn := self.expect(lx.IDENTIFIER):
type_text = ""
if self.expect(lx.COLON):
type_text = self.require(lx.IDENTIFIER).text.strip()
if self.expect(lx.TIMES):
type_text += " *"
size_text = ""
if self.expect(lx.LBRACKET):
if type_text:
raise self.make_syntax_error("Unexpected [")
if not (size := self.expression()):
raise self.make_syntax_error("Expected expression")
self.require(lx.RBRACKET)
size_text = size.text.strip()
return StackEffect(tkn.text, type_text, size_text)
return StackEffect(tkn.text, size_text)
return None
@contextual

20
Tools/cases_generator/stack.py
View file

@ -168,7 +168,7 @@ def from_memory(defn: StackItem, offset: PointerOffset) -> "Local":
@staticmethod
def register(name: str) -> "Local":
item = StackItem(name, None, "", False, True)
item = StackItem(name, "", False, True)
return Local(item, None, True)
def kill(self) -> None:
@ -216,13 +216,11 @@ def array_or_scalar(var: StackItem | Local) -> str:
return "array" if var.is_array() else "scalar"
class Stack:
def __init__(self, extract_bits: bool=True, cast_type: str = "uintptr_t") -> None:
def __init__(self) -> None:
self.base_offset = PointerOffset.zero()
self.physical_sp = PointerOffset.zero()
self.logical_sp = PointerOffset.zero()
self.variables: list[Local] = []
self.extract_bits = extract_bits
self.cast_type = cast_type
def drop(self, var: StackItem, check_liveness: bool) -> None:
self.logical_sp = self.logical_sp.pop(var)
@ -268,10 +266,8 @@ def pop(self, var: StackItem, out: CWriter) -> Local:
self.base_offset = self.logical_sp
if var.name in UNUSED or not var.used:
return Local.unused(var, self.base_offset)
cast = f"({var.type})" if (not indirect and var.type) else ""
bits = ".bits" if cast and self.extract_bits else ""
c_offset = (self.base_offset - self.physical_sp).to_c()
assign = f"{var.name} = {cast}{indirect}stack_pointer[{c_offset}]{bits};\n"
assign = f"{var.name} = {indirect}stack_pointer[{c_offset}];\n"
out.emit(assign)
self._print(out)
return Local.from_memory(var, self.base_offset)
@ -292,12 +288,8 @@ def _do_emit(
out: CWriter,
var: StackItem,
stack_offset: PointerOffset,
cast_type: str,
extract_bits: bool,
) -> None:
cast = f"({cast_type})" if var.type else ""
bits = ".bits" if cast and extract_bits else ""
out.emit(f"stack_pointer[{stack_offset.to_c()}]{bits} = {cast}{var.name};\n")
out.emit(f"stack_pointer[{stack_offset.to_c()}] = {var.name};\n")
def _save_physical_sp(self, out: CWriter) -> None:
if self.physical_sp != self.logical_sp:
@ -320,7 +312,7 @@ def save_variables(self, out: CWriter) -> None:
self._print(out)
var.memory_offset = var_offset
stack_offset = var_offset - self.physical_sp
Stack._do_emit(out, var.item, stack_offset, self.cast_type, self.extract_bits)
Stack._do_emit(out, var.item, stack_offset)
self._print(out)
var_offset = var_offset.push(var.item)
@ -350,7 +342,7 @@ def _print(self, out: CWriter) -> None:
out.emit(self.as_comment() + "\n")
def copy(self) -> "Stack":
other = Stack(self.extract_bits, self.cast_type)
other = Stack()
other.base_offset = self.base_offset
other.physical_sp = self.physical_sp
other.logical_sp = self.logical_sp