Skip to content

gh-98831: Modernize the LOAD_ATTR family #101488

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
gvanrossum merged 12 commits into from
Feb 1, 2023
Merged

gh-98831: Modernize the LOAD_ATTR family #101488

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
12 commits
Select commit Hold shift + click to select a range
2c79dbb
Modernize LOAD_ATTR_INSTANCE_VALUE
gvanrossum Jan 31, 2023
0915f2d
Modernize LOAD_ATTR_MODULE
gvanrossum Jan 31, 2023
f24eb1d
Modernize LOAD_ATTR_WITH_HINT
gvanrossum Jan 31, 2023
2a417e9
Modernize LOAD_ATTR_SLOT
gvanrossum Jan 31, 2023
fb0a638
Reorder family to correspond to definition order
gvanrossum Jan 31, 2023
26acc63
Add cache size symbols for most families
gvanrossum Jan 31, 2023
f0bd9ef
Modernize LOAD_ATTR_CLASS
gvanrossum Jan 31, 2023
41a86d6
Modernize LOAD_ATTR_PROPERTY
gvanrossum Feb 1, 2023
d443753
Modernize LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN
gvanrossum Feb 1, 2023
f675fcc
Modernize LOAD_ATTR_METHOD_WITH_VALUES
gvanrossum Feb 1, 2023
ba7ec51
Modernize LOAD_ATTR_METHOD_NO_DICT
gvanrossum Feb 1, 2023
ab74331
Modernize LOAD_ATTR_METHOD_LAZY_DICT
gvanrossum Feb 1, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
Next Next commit
Modernize LOAD_ATTR_METHOD_WITH_VALUES
  • Loading branch information
@gvanrossum
gvanrossum committed Feb 1, 2023
commit f675fccfbed9b20c50643e44f714406e5378f08c
21 changes: 8 additions & 13 deletions Python/bytecodes.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1445,7 +1445,7 @@ dummy_func(
LOAD_ATTR_CLASS,
LOAD_ATTR_PROPERTY,
LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN,
// LOAD_ATTR_METHOD_WITH_VALUES,
LOAD_ATTR_METHOD_WITH_VALUES,
// LOAD_ATTR_METHOD_NO_DICT,
// LOAD_ATTR_METHOD_LAZY_DICT,
};
Expand Down Expand Up @@ -2339,29 +2339,24 @@ dummy_func(

}

// error: LOAD_ATTR has irregular stack effect
inst(LOAD_ATTR_METHOD_WITH_VALUES) {
inst(LOAD_ATTR_METHOD_WITH_VALUES, (unused/1, type_version/2, keys_version/2, descr/4, self -- res2 if (oparg & 1), res)) {
/* Cached method object */
assert(cframe.use_tracing == 0);
PyObject *self = TOP();
PyTypeObject *self_cls = Py_TYPE(self);
_PyLoadMethodCache *cache = (_PyLoadMethodCache *)next_instr;
uint32_t type_version = read_u32(cache->type_version);
assert(type_version != 0);
DEOPT_IF(self_cls->tp_version_tag != type_version, LOAD_ATTR);
assert(self_cls->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(self);
DEOPT_IF(!_PyDictOrValues_IsValues(dorv), LOAD_ATTR);
PyHeapTypeObject *self_heap_type = (PyHeapTypeObject *)self_cls;
DEOPT_IF(self_heap_type->ht_cached_keys->dk_version !=
read_u32(cache->keys_version), LOAD_ATTR);
keys_version, LOAD_ATTR);
STAT_INC(LOAD_ATTR, hit);
PyObject *res = read_obj(cache->descr);
assert(res != NULL);
assert(_PyType_HasFeature(Py_TYPE(res), Py_TPFLAGS_METHOD_DESCRIPTOR));
SET_TOP(Py_NewRef(res));
PUSH(self);
JUMPBY(INLINE_CACHE_ENTRIES_LOAD_ATTR);
assert(descr != NULL);
res2 = Py_NewRef(descr);
assert(_PyType_HasFeature(Py_TYPE(res2), Py_TPFLAGS_METHOD_DESCRIPTOR));
res = self;
assert(oparg & 1);
}

// error: LOAD_ATTR has irregular stack effect
Expand Down
26 changes: 16 additions & 10 deletions Python/generated_cases.c.h
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

6 changes: 3 additions & 3 deletions Python/opcode_metadata.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -279,7 +279,7 @@ _PyOpcode_num_popped(int opcode, int oparg) {
case PUSH_EXC_INFO:
return -1;
case LOAD_ATTR_METHOD_WITH_VALUES:
return -1;
return 1;
case LOAD_ATTR_METHOD_NO_DICT:
return -1;
case LOAD_ATTR_METHOD_LAZY_DICT:
Expand Down Expand Up @@ -625,7 +625,7 @@ _PyOpcode_num_pushed(int opcode, int oparg) {
case PUSH_EXC_INFO:
return -1;
case LOAD_ATTR_METHOD_WITH_VALUES:
return -1;
return ((oparg & 1) ? 1 : 0) + 1;
case LOAD_ATTR_METHOD_NO_DICT:
return -1;
case LOAD_ATTR_METHOD_LAZY_DICT:
Expand Down Expand Up @@ -838,7 +838,7 @@ struct opcode_metadata {
[BEFORE_WITH] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IX },
[WITH_EXCEPT_START] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IX },
[PUSH_EXC_INFO] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IX },
[LOAD_ATTR_METHOD_WITH_VALUES] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IX },
[LOAD_ATTR_METHOD_WITH_VALUES] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IBC00000000 },
[LOAD_ATTR_METHOD_NO_DICT] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IX },
[LOAD_ATTR_METHOD_LAZY_DICT] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IX },
[CALL_BOUND_METHOD_EXACT_ARGS] = { DIR_NONE, DIR_NONE, DIR_NONE, true, INSTR_FMT_IB },
Expand Down