Construct LocalVariableAccess

Kay Hayen

2024-04-26 13:13

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_b5b2754da2e2b1fe191ca1cbfe8e50d8;		82	static PyCodeObject *codeobj_b5b2754da2e2b1fe191ca1cbfe8e50d8;
	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_d495e47f2bf334d3dc16aad0da958d73 = MAKE_CODE_OBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[13], mod_consts[13], NULL, NULL, 0, 0, 0);		88	codeobj_d495e47f2bf334d3dc16aad0da958d73 = MAKE_CODE_OBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[13], mod_consts[13], NULL, NULL, 0, 0, 0);
	89	codeobj_main = codeobj_d495e47f2bf334d3dc16aad0da958d73;		89	codeobj_main = codeobj_d495e47f2bf334d3dc16aad0da958d73;
	90	codeobj_b5b2754da2e2b1fe191ca1cbfe8e50d8 = 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_b5b2754da2e2b1fe191ca1cbfe8e50d8 = 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");
	685			679
	686	// Module code.		680	// Module code.
	687	{		681	{
	688	PyObject *tmp_assign_source_1;		682	PyObject *tmp_assign_source_1;
	689	tmp_assign_source_1 = Py_None;		683	tmp_assign_source_1 = Py_None;
n	690	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[3], tmp_assign_source_1);	n	684	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_1);
	691	}		685	}
	692	{		686	{
	693	PyObject *tmp_assign_source_2;		687	PyObject *tmp_assign_source_2;
n	694	tmp_assign_source_2 = mod_consts[4];	n	688	tmp_assign_source_2 = mod_consts[3];
	695	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_2);		689	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_2);
	696	}		690	}
	697	frame_d495e47f2bf334d3dc16aad0da958d73 = MAKE_MODULE_FRAME(codeobj_d495e47f2bf334d3dc16aad0da958d73, module___main__);		691	frame_d495e47f2bf334d3dc16aad0da958d73 = MAKE_MODULE_FRAME(codeobj_d495e47f2bf334d3dc16aad0da958d73, module___main__);
	698			692
	699	// Push the new frame as the currently active one, and we should be exclusively		693	// Push the new frame as the currently active one, and we should be exclusively
	700	// owning it.		694	// owning it.
	706	PyObject *tmp_assign_source_3;		700	PyObject *tmp_assign_source_3;
	707	PyObject *tmp_name_value_1;		701	PyObject *tmp_name_value_1;
	708	PyObject *tmp_globals_arg_value_1;		702	PyObject *tmp_globals_arg_value_1;
	709	PyObject *tmp_locals_arg_value_1;		703	PyObject *tmp_locals_arg_value_1;
	710	PyObject *tmp_fromlist_value_1;		704	PyObject *tmp_fromlist_value_1;
n	711	tmp_name_value_1 = mod_consts[6];	n	705	tmp_name_value_1 = mod_consts[5];
	712	tmp_globals_arg_value_1 = (PyObject *)moduledict___main__;		706	tmp_globals_arg_value_1 = (PyObject *)moduledict___main__;
	713	tmp_locals_arg_value_1 = Py_None;		707	tmp_locals_arg_value_1 = Py_None;
	714	tmp_fromlist_value_1 = Py_None;		708	tmp_fromlist_value_1 = Py_None;
	715	frame_d495e47f2bf334d3dc16aad0da958d73->m_frame.f_lineno = 4;		709	frame_d495e47f2bf334d3dc16aad0da958d73->m_frame.f_lineno = 4;
	716	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);		710	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);
	722			716
	723	exception_lineno = 4;		717	exception_lineno = 4;
	724			718
	725	goto frame_exception_exit_1;		719	goto frame_exception_exit_1;
	726	}		720	}
n	727	UPDATE_STRING_DICT1(moduledict___main__, (Nuitka_StringObject *)mod_consts[6], tmp_assign_source_3);	n	721	UPDATE_STRING_DICT1(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_3);
	728	}		722	}
	729	{		723	{
	730	PyObject *tmp_assign_source_4;		724	PyObject *tmp_assign_source_4;
n	731	tmp_assign_source_4 = mod_consts[7];	n	725	tmp_assign_source_4 = mod_consts[6];
	732	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);		726	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);
	733	}		727	}
	734	{		728	{
	735	PyObject *tmp_assign_source_5;		729	PyObject *tmp_assign_source_5;
	736	tmp_assign_source_5 = Py_None;		730	tmp_assign_source_5 = Py_None;
n	737	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_5);	n	731	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[7], tmp_assign_source_5);
	738	}		732	}
	739	{		733	{
	740	PyObject *tmp_assign_source_6;		734	PyObject *tmp_assign_source_6;
	741	tmp_assign_source_6 = Py_None;		735	tmp_assign_source_6 = Py_None;
n	742	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_6);	n	736	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_6);
	743	}		737	}
	744	{		738	{
	745	PyObject *tmp_assign_source_7;		739	PyObject *tmp_assign_source_7;
	746			740
	747			741
	751	}		745	}
	752	{		746	{
	753	PyObject *tmp_assign_source_8;		747	PyObject *tmp_assign_source_8;
	754	PyObject *tmp_iter_arg_1;		748	PyObject *tmp_iter_arg_1;
	755	PyObject *tmp_called_instance_1;		749	PyObject *tmp_called_instance_1;
n	756	tmp_called_instance_1 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[6]);	n	750	tmp_called_instance_1 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[5]);
	757			751
	758	if (unlikely(tmp_called_instance_1 == NULL)) {		752	if (unlikely(tmp_called_instance_1 == NULL)) {
t	759	tmp_called_instance_1 = GET_MODULE_VARIABLE_VALUE_FALLBACK(tstate, mod_consts[6]);	t	753	tmp_called_instance_1 = GET_MODULE_VARIABLE_VALUE_FALLBACK(tstate, mod_consts[5]);
	760	}		754	}
	761			755
	762	assert(!(tmp_called_instance_1 == NULL));		756	assert(!(tmp_called_instance_1 == NULL));
	763	frame_d495e47f2bf334d3dc16aad0da958d73->m_frame.f_lineno = 27;		757	frame_d495e47f2bf334d3dc16aad0da958d73->m_frame.f_lineno = 27;
	764	tmp_iter_arg_1 = CALL_METHOD_WITH_ARGS2(		758	tmp_iter_arg_1 = CALL_METHOD_WITH_ARGS2(