Construct LocalVariableAccess

Kay Hayen

2024-06-18 15:08

Performance Diagrams

Source Code with Construct    # construct_begin
    module_value2 = local_value
    # construct_end

    module_value3 = 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    # construct_begin



    module_value3 = 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
	16			16
	17	# Use writing to global variable as access method.		17	# Use writing to global variable as access method.
	18	global module_value2, module_value3		18	global module_value2, module_value3
	19			19
	20	# construct_begin		20	# construct_begin
t	21	module_value2 = local_value	t	21
	22	# construct_end		22
	23			23
	24	module_value3 = local_value		24	module_value3 = local_value
	25			25
	26			26
	27	for x in itertools.repeat(None, 50000):		27	for x in itertools.repeat(None, 50000):

Context Diff of Generated Code

	Construct			Baseline
	82	static PyCodeObject *codeobj_da061f3d9df5ca0b63e61d682c83addc;		82	static PyCodeObject *codeobj_da061f3d9df5ca0b63e61d682c83addc;
	83	/* For use in "MainProgram.c". */		83	/* For use in "MainProgram.c". */
	84	PyCodeObject *codeobj_main = NULL;		84	PyCodeObject *codeobj_main = NULL;
	85			85
	86	static void createModuleCodeObjects(void) {		86	static void createModuleCodeObjects(void) {
n	87	module_filename_obj = mod_consts[4]; CHECK_OBJECT(module_filename_obj);	n	87	module_filename_obj = mod_consts[3]; CHECK_OBJECT(module_filename_obj);
	88	codeobj_186c140c9a73cd4058d91ceddea2ca6c = MAKE_CODE_OBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[13], mod_consts[13], NULL, NULL, 0, 0, 0);		88	codeobj_186c140c9a73cd4058d91ceddea2ca6c = MAKE_CODE_OBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[13], mod_consts[13], NULL, NULL, 0, 0, 0);
	89	codeobj_main = codeobj_186c140c9a73cd4058d91ceddea2ca6c;		89	codeobj_main = codeobj_186c140c9a73cd4058d91ceddea2ca6c;
	90	codeobj_da061f3d9df5ca0b63e61d682c83addc = MAKE_CODE_OBJECT(module_filename_obj, 11, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[8], mod_consts[8], mod_consts[14], NULL, 0, 0, 0);		90	codeobj_da061f3d9df5ca0b63e61d682c83addc = MAKE_CODE_OBJECT(module_filename_obj, 11, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[8], mod_consts[8], mod_consts[14], NULL, 0, 0, 0);
	91	}		91	}
	92			92
	231	{		231	{
	232	PyObject *tmp_assign_source_2;		232	PyObject *tmp_assign_source_2;
	233	CHECK_OBJECT(var_local_value);		233	CHECK_OBJECT(var_local_value);
	234	tmp_assign_source_2 = var_local_value;		234	tmp_assign_source_2 = var_local_value;
	235	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_2);		235	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_2);
n	236	}	n
	237	{
	238	PyObject *tmp_assign_source_3;
	239	CHECK_OBJECT(var_local_value);
	240	tmp_assign_source_3 = var_local_value;
	241	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_3);
	242	}		236	}
	243	tmp_return_value = Py_None;		237	tmp_return_value = Py_None;
	244	Py_INCREF(tmp_return_value);		238	Py_INCREF(tmp_return_value);
	245	goto try_return_handler_1;		239	goto try_return_handler_1;
	246	NUITKA_CANNOT_GET_HERE("tried codes exits in all cases");		240	NUITKA_CANNOT_GET_HERE("tried codes exits in all cases");
	677			671
	678	// Module code.		672	// Module code.
	679	{		673	{
	680	PyObject *tmp_assign_source_1;		674	PyObject *tmp_assign_source_1;
	681	tmp_assign_source_1 = Py_None;		675	tmp_assign_source_1 = Py_None;
n	682	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[3], tmp_assign_source_1);	n	676	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_1);
	683	}		677	}
	684	{		678	{
	685	PyObject *tmp_assign_source_2;		679	PyObject *tmp_assign_source_2;
n	686	tmp_assign_source_2 = mod_consts[4];	n	680	tmp_assign_source_2 = mod_consts[3];
	687	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_2);		681	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_2);
	688	}		682	}
	689	frame_186c140c9a73cd4058d91ceddea2ca6c = MAKE_MODULE_FRAME(codeobj_186c140c9a73cd4058d91ceddea2ca6c, module___main__);		683	frame_186c140c9a73cd4058d91ceddea2ca6c = MAKE_MODULE_FRAME(codeobj_186c140c9a73cd4058d91ceddea2ca6c, module___main__);
	690			684
	691	// Push the new frame as the currently active one, and we should be exclusively		685	// Push the new frame as the currently active one, and we should be exclusively
	692	// owning it.		686	// owning it.
	698	PyObject *tmp_assign_source_3;		692	PyObject *tmp_assign_source_3;
	699	PyObject *tmp_name_value_1;		693	PyObject *tmp_name_value_1;
	700	PyObject *tmp_globals_arg_value_1;		694	PyObject *tmp_globals_arg_value_1;
	701	PyObject *tmp_locals_arg_value_1;		695	PyObject *tmp_locals_arg_value_1;
	702	PyObject *tmp_fromlist_value_1;		696	PyObject *tmp_fromlist_value_1;
n	703	tmp_name_value_1 = mod_consts[6];	n	697	tmp_name_value_1 = mod_consts[5];
	704	tmp_globals_arg_value_1 = (PyObject *)moduledict___main__;		698	tmp_globals_arg_value_1 = (PyObject *)moduledict___main__;
	705	tmp_locals_arg_value_1 = Py_None;		699	tmp_locals_arg_value_1 = Py_None;
	706	tmp_fromlist_value_1 = Py_None;		700	tmp_fromlist_value_1 = Py_None;
	707	frame_186c140c9a73cd4058d91ceddea2ca6c->m_frame.f_lineno = 4;		701	frame_186c140c9a73cd4058d91ceddea2ca6c->m_frame.f_lineno = 4;
	708	tmp_assign_source_3 = IMPORT_MODULE4(tstate, tmp_name_value_1, tmp_globals_arg_value_1, tmp_locals_arg_value_1, tmp_fromlist_value_1);		702	tmp_assign_source_3 = IMPORT_MODULE4(tstate, tmp_name_value_1, tmp_globals_arg_value_1, tmp_locals_arg_value_1, tmp_fromlist_value_1);
	714			708
	715	exception_lineno = 4;		709	exception_lineno = 4;
	716			710
	717	goto frame_exception_exit_1;		711	goto frame_exception_exit_1;
	718	}		712	}
n	719	UPDATE_STRING_DICT1(moduledict___main__, (Nuitka_StringObject *)mod_consts[6], tmp_assign_source_3);	n	713	UPDATE_STRING_DICT1(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_3);
	720	}		714	}
	721	{		715	{
	722	PyObject *tmp_assign_source_4;		716	PyObject *tmp_assign_source_4;
n	723	tmp_assign_source_4 = mod_consts[7];	n	717	tmp_assign_source_4 = mod_consts[6];
	724	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);		718	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);
	725	}		719	}
	726	{		720	{
	727	PyObject *tmp_assign_source_5;		721	PyObject *tmp_assign_source_5;
	728	tmp_assign_source_5 = Py_None;		722	tmp_assign_source_5 = Py_None;
n	729	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_5);	n	723	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[7], tmp_assign_source_5);
	730	}		724	}
	731	{		725	{
	732	PyObject *tmp_assign_source_6;		726	PyObject *tmp_assign_source_6;
	733	tmp_assign_source_6 = Py_None;		727	tmp_assign_source_6 = Py_None;
n	734	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_6);	n	728	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_6);
	735	}		729	}
	736	{		730	{
	737	PyObject *tmp_assign_source_7;		731	PyObject *tmp_assign_source_7;
	738			732
	739			733
	743	}		737	}
	744	{		738	{
	745	PyObject *tmp_assign_source_8;		739	PyObject *tmp_assign_source_8;
	746	PyObject *tmp_iter_arg_1;		740	PyObject *tmp_iter_arg_1;
	747	PyObject *tmp_called_instance_1;		741	PyObject *tmp_called_instance_1;
n	748	tmp_called_instance_1 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[6]);	n	742	tmp_called_instance_1 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[5]);
	749			743
	750	if (unlikely(tmp_called_instance_1 == NULL)) {		744	if (unlikely(tmp_called_instance_1 == NULL)) {
t	751	tmp_called_instance_1 = GET_MODULE_VARIABLE_VALUE_FALLBACK(tstate, mod_consts[6]);	t	745	tmp_called_instance_1 = GET_MODULE_VARIABLE_VALUE_FALLBACK(tstate, mod_consts[5]);
	752	}		746	}
	753			747
	754	assert(!(tmp_called_instance_1 == NULL));		748	assert(!(tmp_called_instance_1 == NULL));
	755	frame_186c140c9a73cd4058d91ceddea2ca6c->m_frame.f_lineno = 27;		749	frame_186c140c9a73cd4058d91ceddea2ca6c->m_frame.f_lineno = 27;
	756	tmp_iter_arg_1 = CALL_METHOD_WITH_ARGS2(		750	tmp_iter_arg_1 = CALL_METHOD_WITH_ARGS2(