Construct LocalVariableDeletion

Performance Diagrams

Construct LocalVariableDeletion 00100001000020000200003000030000400004000050000500006000060000700007000080000800009000090000100000100000CPython 3.10Nuitka (main)Nuitka (develop)Nuitka (factory)1348690.625470.96674904644766CPython 3.10100535246.875257.0Nuitka (main)99909403.125258.5387102080791Nuitka (develop)99920559.375258.511672169279Nuitka (factory)Construct LocalVariableDeletionTicks Construct LocalVariableDeletion 00100001000020000200003000030000400004000050000500006000060000700007000080000800009000090000100000100000CPython 3.8Nuitka (main)Nuitka (develop)Nuitka (factory)1158490.625475.5392609167741CPython 3.899978246.875257.48350485539777Nuitka (main)100174403.125257.0Nuitka (develop)100083559.375257.22448439714896Nuitka (factory)Construct LocalVariableDeletionTicks Construct LocalVariableDeletion 00100001000020000200003000030000400004000050000500006000060000700007000080000800009000090000100000100000CPython 2.7Nuitka (main)Nuitka (develop)Nuitka (factory)793290.625484.5141923076923CPython 2.7100000246.875257.0Nuitka (main)100000403.125257.0Nuitka (develop)100000559.375257.0Nuitka (factory)Construct LocalVariableDeletionTicks

Source Code with Construct

    module_value2 = local_value

    if module_value2 is None:
        # construct_begin
        del local_value
        # construct_end

        another_local_value = module_value3

    module_value2 = module_value1

    local_value = module_value3
    return local_value


for x in itertools.repeat(None, 50000):
    calledRepeatedly()

print("OK.")

#     Python test originally created or extracted from other peoples work. The
#     parts from me are licensed as below. It is at least Free Software where
#     it's copied from other people. In these cases, that will normally be
#     indicated.
#
#     Licensed under the Apache License, Version 2.0 (the "License");
#     you may not use this file except in compliance with the License.
#     You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#     Unless required by applicable law or agreed to in writing, software
#     distributed under the License is distributed on an "AS IS" BASIS,
#     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#     See the License for the specific language governing permissions and
#     limitations under the License.

Source Code without Construct

    module_value2 = local_value

    if module_value2 is None:
        # construct_begin



        another_local_value = module_value3

    module_value2 = module_value1

    local_value = module_value3
    return local_value


for x in itertools.repeat(None, 50000):
    calledRepeatedly()

print("OK.")

#     Python test originally created or extracted from other peoples work. The
#     parts from me are licensed as below. It is at least Free Software where
#     it's copied from other people. In these cases, that will normally be
#     indicated.
#
#     Licensed under the Apache License, Version 2.0 (the "License");
#     you may not use this file except in compliance with the License.
#     You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#     Unless required by applicable law or agreed to in writing, software
#     distributed under the License is distributed on an "AS IS" BASIS,
#     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#     See the License for the specific language governing permissions and
#     limitations under the License.

Context Diff of Source Code


Construct
Baseline
19 19
20     module_value2 = local_value 20     module_value2 = local_value
21 21
22     if module_value2 is None: 22     if module_value2 is None:
23         # construct_begin 23         # construct_begin
t 24         del local_value t 24  
25         # construct_end 25  
26 26
27         another_local_value = module_value3 27         another_local_value = module_value3
28 28
29     module_value2 = module_value1 29     module_value2 = module_value1
30 30

Context Diff of Generated Code


Construct
Baseline
212         } else { 212         } else {
213             goto branch_no_1; 213             goto branch_no_1;
214         } 214         }
215     } 215     }
216     branch_yes_1:; 216     branch_yes_1:;
n 217     CHECK_OBJECT(var_local_value); n
218     Py_DECREF(var_local_value);
219     var_local_value = NULL;
220  
221     { 217     {
222         PyObject *tmp_assign_source_3; 218         PyObject *tmp_assign_source_3;
223         tmp_assign_source_3 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[2]); 219         tmp_assign_source_3 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[2]);
224 220
225         if (unlikely(tmp_assign_source_3 == NULL)) { 221         if (unlikely(tmp_assign_source_3 == NULL)) {
279             type_description_1 = "oo"; 275             type_description_1 = "oo";
280             goto frame_exception_exit_1; 276             goto frame_exception_exit_1;
281         } 277         }
282         { 278         {
283             PyObject *old = var_local_value; 279             PyObject *old = var_local_value;
n n 280             assert(old != NULL);
284             var_local_value = tmp_assign_source_5; 281             var_local_value = tmp_assign_source_5;
285             Py_INCREF(var_local_value); 282             Py_INCREF(var_local_value);
t 286             Py_XDECREF(old); t 283             Py_DECREF(old);
287         } 284         }
288 285
289     } 286     }
290 287
291 288