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gh-93911:LOAD_ATTR_PROPERTY#93912

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Merged
Fidget-Spinner merged 14 commits intopython:mainfromFidget-Spinner:load_attr_property
Jun 17, 2022
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c9966d1
More LOAD_ATTR specializations
Fidget-SpinnerJun 16, 2022
e66782b
📜🤖 Added by blurb_it.
blurb-it[bot]Jun 16, 2022
c7bde64
fix compiler warnings
Fidget-SpinnerJun 16, 2022
6a03dad
Fix double backticks
Fidget-SpinnerJun 16, 2022
c78831d
Apply Mark's suggestions
Fidget-SpinnerJun 16, 2022
d03cc61
try to fix compiler warnings
Fidget-SpinnerJun 16, 2022
36af644
re-enable LOAD_ATTR_CLASS_MUTABLE_DESCRIPTOR
Fidget-SpinnerJun 16, 2022
c20af47
Remove double stat count
Fidget-SpinnerJun 16, 2022
3d5d5fd
remove LOAD_ATTR_MUTABLE_CLASS_DESCRIPTOR
Fidget-SpinnerJun 16, 2022
7f45ec1
Delete 2022-06-16-08-56-26.gh-issue-93657.AZG2WT.rst
Fidget-SpinnerJun 16, 2022
a6c4ab3
📜🤖 Added by blurb_it.
blurb-it[bot]Jun 16, 2022
626bfa1
fix up stats and deopt
Fidget-SpinnerJun 17, 2022
4786bac
Use 32 bit func_version
Fidget-SpinnerJun 17, 2022
9f32d03
remove the version check
Fidget-SpinnerJun 17, 2022
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26 changes: 26 additions & 0 deletionsInclude/internal/pycore_descrobject.h
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@@ -0,0 +1,26 @@
#ifndefPy_INTERNAL_DESCROBJECT_H
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Maybe "pycore_property.h" as it is just the property struct.

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I'm leaving it generic from now (and naming it after the file it came from) so that I can re-use it again in the future when I add more specialisations. (E.g. classmethod is also from the same file)

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Do properties and classmethods really belong in the same file? Sure, they are both descriptors, but so are Python functions.
The file layout is a bit of an historical artifact.

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If you don't want to change it for this PR, that's fine too.

Fidget-Spinner reacted with thumbs up emoji
#definePy_INTERNAL_DESCROBJECT_H
#ifdef__cplusplus
extern"C" {
#endif

#ifndefPy_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif

typedefstruct {
PyObject_HEAD
PyObject*prop_get;
PyObject*prop_set;
PyObject*prop_del;
PyObject*prop_doc;
PyObject*prop_name;
intgetter_doc;
}propertyobject;

typedefpropertyobject_PyPropertyObject;

#ifdef__cplusplus
}
#endif
#endif/* !Py_INTERNAL_DESCROBJECT_H */
27 changes: 14 additions & 13 deletionsInclude/internal/pycore_opcode.h
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53 changes: 27 additions & 26 deletionsInclude/opcode.h
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1 change: 1 addition & 0 deletionsLib/opcode.py
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Expand Up@@ -287,6 +287,7 @@ def jabs_op(name, op):
"LOAD_ATTR_CLASS",
"LOAD_ATTR_INSTANCE_VALUE",
"LOAD_ATTR_MODULE",
"LOAD_ATTR_PROPERTY",
"LOAD_ATTR_SLOT",
"LOAD_ATTR_WITH_HINT",
# These will always push [unbound method, self] onto the stack.
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1 change: 1 addition & 0 deletionsMakefile.pre.in
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Expand Up@@ -1595,6 +1595,7 @@ PYTHON_HEADERS= \
$(srcdir)/Include/internal/pycore_condvar.h \
$(srcdir)/Include/internal/pycore_context.h \
$(srcdir)/Include/internal/pycore_dict.h \
$(srcdir)/Include/internal/pycore_descrobject.h \
$(srcdir)/Include/internal/pycore_dtoa.h \
$(srcdir)/Include/internal/pycore_exceptions.h \
$(srcdir)/Include/internal/pycore_fileutils.h \
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@@ -0,0 +1 @@
Specialize ``LOAD_ATTR`` for ``property()`` attributes.
11 changes: 1 addition & 10 deletionsObjects/descrobject.c
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Expand Up@@ -6,6 +6,7 @@
#include "pycore_pystate.h" // _PyThreadState_GET()
#include "pycore_tuple.h" // _PyTuple_ITEMS()
#include "structmember.h" // PyMemberDef
#include "pycore_descrobject.h"

/*[clinic input]
class mappingproxy "mappingproxyobject *" "&PyDictProxy_Type"
Expand DownExpand Up@@ -1501,16 +1502,6 @@ class property(object):

*/

typedef struct {
PyObject_HEAD
PyObject *prop_get;
PyObject *prop_set;
PyObject *prop_del;
PyObject *prop_doc;
PyObject *prop_name;
int getter_doc;
} propertyobject;

static PyObject * property_copy(PyObject *, PyObject *, PyObject *,
PyObject *);

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1 change: 1 addition & 0 deletionsPCbuild/pythoncore.vcxproj
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Expand Up@@ -207,6 +207,7 @@
<ClInclude Include="..\Include\internal\pycore_compile.h" />
<ClInclude Include="..\Include\internal\pycore_condvar.h" />
<ClInclude Include="..\Include\internal\pycore_context.h" />
<ClInclude Include="..\Include\internal\pycore_descrobject.h" />
<ClInclude Include="..\Include\internal\pycore_dtoa.h" />
<ClInclude Include="..\Include\internal\pycore_exceptions.h" />
<ClInclude Include="..\Include\internal\pycore_fileutils.h" />
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3 changes: 3 additions & 0 deletionsPCbuild/pythoncore.vcxproj.filters
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Expand Up@@ -528,6 +528,9 @@
<ClInclude Include="..\Include\internal\pycore_context.h">
<Filter>Include\internal</Filter>
</ClInclude>
<ClInclude Include="..\Include\internal\pycore_descrobject.h">
<Filter>Include\internal</Filter>
</ClInclude>
<ClInclude Include="..\Include\internal\pycore_dtoa.h">
<Filter>Include\internal</Filter>
</ClInclude>
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46 changes: 42 additions & 4 deletionsPython/ceval.c
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Expand Up@@ -3627,7 +3627,6 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
}

TARGET(LOAD_ATTR_CLASS) {
/* LOAD_METHOD, for class methods */
assert(cframe.use_tracing == 0);
_PyLoadMethodCache *cache = (_PyLoadMethodCache *)next_instr;

Expand All@@ -3650,6 +3649,46 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
NOTRACE_DISPATCH();
}

TARGET(LOAD_ATTR_PROPERTY) {
assert(cframe.use_tracing == 0);
DEOPT_IF(tstate->interp->eval_frame, LOAD_ATTR);
_PyLoadMethodCache *cache = (_PyLoadMethodCache *)next_instr;

PyObject *owner = TOP();
PyTypeObject *cls = Py_TYPE(owner);
uint32_t type_version = read_u32(cache->type_version);
DEOPT_IF(cls->tp_version_tag != type_version, LOAD_ATTR);
assert(type_version != 0);
PyObject *fget = read_obj(cache->descr);
PyFunctionObject *f = (PyFunctionObject *)fget;
uint32_t func_version = read_u32(cache->keys_version);
assert(func_version != 0);
DEOPT_IF(f->func_version != func_version, LOAD_ATTR);
PyCodeObject *code = (PyCodeObject *)f->func_code;
assert(code->co_argcount == 1);
STAT_INC(LOAD_ATTR, hit);

Py_INCREF(fget);
_PyInterpreterFrame *new_frame = _PyFrame_Push(tstate, f);
if (new_frame == NULL) {
goto error;
}
SET_TOP(NULL);
int push_null = !(oparg & 1);
STACK_SHRINK(push_null);
new_frame->localsplus[0] = owner;
for (int i = 1; i < code->co_nlocalsplus; i++) {
new_frame->localsplus[i] = NULL;
}
_PyFrame_SetStackPointer(frame, stack_pointer);
JUMPBY(INLINE_CACHE_ENTRIES_LOAD_ATTR);
frame->prev_instr = next_instr - 1;
new_frame->previous = frame;
frame = cframe.current_frame = new_frame;
CALL_STAT_INC(inlined_py_calls);
goto start_frame;
}

TARGET(STORE_ATTR_ADAPTIVE) {
assert(cframe.use_tracing == 0);
_PyAttrCache *cache = (_PyAttrCache *)next_instr;
Expand DownExpand Up@@ -4549,7 +4588,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
}

TARGET(LOAD_ATTR_METHOD_WITH_VALUES) {
/*LOAD_METHOD, with cached method object */
/*Cached method object */
assert(cframe.use_tracing == 0);
PyObject *self = TOP();
PyTypeObject *self_cls = Py_TYPE(self);
Expand All@@ -4575,8 +4614,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
}

TARGET(LOAD_ATTR_METHOD_WITH_DICT) {
/* LOAD_METHOD, with a dict
Can be either a managed dict, or a tp_dictoffset offset.*/
/* Can be either a managed dict, or a tp_dictoffset offset.*/
assert(cframe.use_tracing == 0);
PyObject *self = TOP();
PyTypeObject *self_cls = Py_TYPE(self);
Expand Down
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