Construct GlobalVariableAccess

Performance Diagrams

Source Code with Construct

module_value1 = 1000
module_value2 = 2000

def calledRepeatedly():
    module_value1
# construct_begin
    return module_value2
# construct_alternative



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

print("OK.")

Source Code without Construct

module_value1 = 1000
module_value2 = 2000

def calledRepeatedly():
    module_value1
# construct_begin

# construct_alternative
    return None
# construct_end

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

print("OK.")

Context Diff of Source Code

	Construct			Baseline
	22	module_value2 = 2000		22	module_value2 = 2000
	23			23
	24	def calledRepeatedly():		24	def calledRepeatedly():
	25	module_value1		25	module_value1
	26	# construct_begin		26	# construct_begin
n	27	return module_value2	n	27
	28	# construct_alternative		28	# construct_alternative
t	29		t	29	return None
	30			30	# construct_end
	31			31
	32	import itertools		32	import itertools
	33	for x in itertools.repeat(None, 50000):		33	for x in itertools.repeat(None, 50000):
	34	calledRepeatedly()		34	calledRepeatedly()
	35			35

Context Diff of Generated Code

	Construct			Baseline
	70	static PyCodeObject *codeobj_8a848fc5b3614b46fb5468fb05706da5;		70	static PyCodeObject *codeobj_8a848fc5b3614b46fb5468fb05706da5;
	71	/* For use in "MainProgram.c". */		71	/* For use in "MainProgram.c". */
	72	PyCodeObject *codeobj_main = NULL;		72	PyCodeObject *codeobj_main = NULL;
	73			73
	74	static void createModuleCodeObjects(void) {		74	static void createModuleCodeObjects(void) {
n	75	module_filename_obj = mod_consts[3]; CHECK_OBJECT(module_filename_obj);	n	75	module_filename_obj = mod_consts[2]; CHECK_OBJECT(module_filename_obj);
	76	codeobj_d2864f5273fbe8826470913c2b45e529 = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[17], NULL, NULL, 0, 0, 0);		76	codeobj_d2864f5273fbe8826470913c2b45e529 = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[17], NULL, NULL, 0, 0, 0);
	77	codeobj_8a848fc5b3614b46fb5468fb05706da5 = MAKE_CODEOBJECT(module_filename_obj, 24, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[9], NULL, NULL, 0, 0, 0);		77	codeobj_8a848fc5b3614b46fb5468fb05706da5 = MAKE_CODEOBJECT(module_filename_obj, 24, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[9], NULL, NULL, 0, 0, 0);
	78	}		78	}
	79			79
	80	// The module function declarations.		80	// The module function declarations.
	94	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;		94	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;
	95	PyObject *exception_type = NULL;		95	PyObject *exception_type = NULL;
	96	PyObject *exception_value = NULL;		96	PyObject *exception_value = NULL;
	97	PyTracebackObject *exception_tb = NULL;		97	PyTracebackObject *exception_tb = NULL;
	98	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		98	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n			n	99	static struct Nuitka_FrameObject *cache_frame_8a848fc5b3614b46fb5468fb05706da5 = NULL;
	99	PyObject *tmp_return_value = NULL;		100	PyObject *tmp_return_value = NULL;
n	100	static struct Nuitka_FrameObject *cache_frame_8a848fc5b3614b46fb5468fb05706da5 = NULL;	n
	101			101
	102	// Actual function body.		102	// Actual function body.
	103	if (isFrameUnusable(cache_frame_8a848fc5b3614b46fb5468fb05706da5)) {		103	if (isFrameUnusable(cache_frame_8a848fc5b3614b46fb5468fb05706da5)) {
	104	Py_XDECREF(cache_frame_8a848fc5b3614b46fb5468fb05706da5);		104	Py_XDECREF(cache_frame_8a848fc5b3614b46fb5468fb05706da5);
	105			105
	144	exception_lineno = 25;		144	exception_lineno = 25;
	145			145
	146	goto frame_exception_exit_1;		146	goto frame_exception_exit_1;
	147	}		147	}
	148	}		148	}
n	149	tmp_return_value = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[1]);	n
	150
	151	if (unlikely(tmp_return_value == NULL)) {
	152	tmp_return_value = GET_MODULE_VARIABLE_VALUE_FALLBACK(mod_consts[1]);
	153	}
	154
	155	if (tmp_return_value == NULL) {
	156	assert(ERROR_OCCURRED());
	157
	158	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	159
	160
	161	exception_lineno = 27;
	162
	163	goto frame_exception_exit_1;
	164	}
	165	Py_INCREF(tmp_return_value);
	166	goto frame_return_exit_1;
	167			149
	168	#if 0		150	#if 0
	169	RESTORE_FRAME_EXCEPTION(frame_8a848fc5b3614b46fb5468fb05706da5);		151	RESTORE_FRAME_EXCEPTION(frame_8a848fc5b3614b46fb5468fb05706da5);
	170	#endif		152	#endif
	171			153
	172	// Put the previous frame back on top.		154	// Put the previous frame back on top.
	173	popFrameStack();		155	popFrameStack();
	174			156
	175	goto frame_no_exception_1;		157	goto frame_no_exception_1;
n	176		n
	177	frame_return_exit_1:;
	178	#if 0
	179	RESTORE_FRAME_EXCEPTION(frame_8a848fc5b3614b46fb5468fb05706da5);
	180	#endif
	181
	182	// Put the previous frame back on top.
	183	popFrameStack();
	184
	185	goto function_return_exit;
	186			158
	187	frame_exception_exit_1:;		159	frame_exception_exit_1:;
	188			160
	189	#if 0		161	#if 0
	190	RESTORE_FRAME_EXCEPTION(frame_8a848fc5b3614b46fb5468fb05706da5);		162	RESTORE_FRAME_EXCEPTION(frame_8a848fc5b3614b46fb5468fb05706da5);
	221			193
	222	// Return the error.		194	// Return the error.
	223	goto function_exception_exit;		195	goto function_exception_exit;
	224			196
	225	frame_no_exception_1:;		197	frame_no_exception_1:;
n			n	198	tmp_return_value = Py_None;
				199	Py_INCREF(tmp_return_value);
				200	goto function_return_exit;
	226			201
	227	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");		202	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");
	228	return NULL;		203	return NULL;
	229			204
	230	function_exception_exit:		205	function_exception_exit:
	629			604
	630	// Module code.		605	// Module code.
	631	{		606	{
	632	PyObject *tmp_assign_source_1;		607	PyObject *tmp_assign_source_1;
	633	tmp_assign_source_1 = Py_None;		608	tmp_assign_source_1 = Py_None;
n	634	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_1);	n	609	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_1);
	635	}		610	}
	636	{		611	{
	637	PyObject *tmp_assign_source_2;		612	PyObject *tmp_assign_source_2;
n	638	tmp_assign_source_2 = mod_consts[3];	n	613	tmp_assign_source_2 = mod_consts[2];
	639	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_2);		614	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[3], tmp_assign_source_2);
	640	}		615	}
	641	{		616	{
	642	PyObject *tmp_assign_source_3;		617	PyObject *tmp_assign_source_3;
	643	tmp_assign_source_3 = Py_None;		618	tmp_assign_source_3 = Py_None;
n	644	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_3);	n	619	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_3);
	645	}		620	}
	646	{		621	{
	647	PyObject *tmp_assign_source_4;		622	PyObject *tmp_assign_source_4;
	648	tmp_assign_source_4 = PyDict_New();		623	tmp_assign_source_4 = PyDict_New();
n	649	UPDATE_STRING_DICT1(moduledict___main__, (Nuitka_StringObject *)mod_consts[6], tmp_assign_source_4);	n	624	UPDATE_STRING_DICT1(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_4);
	650	}		625	}
	651	{		626	{
	652	PyObject *tmp_assign_source_5;		627	PyObject *tmp_assign_source_5;
n	653	tmp_assign_source_5 = mod_consts[7];	n	628	tmp_assign_source_5 = mod_consts[6];
	654	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_5);		629	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_5);
	655	}		630	}
	656	{		631	{
	657	PyObject *tmp_assign_source_6;		632	PyObject *tmp_assign_source_6;
t	658	tmp_assign_source_6 = mod_consts[8];	t	633	tmp_assign_source_6 = mod_consts[7];
	659	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_6);		634	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[8], tmp_assign_source_6);
	660	}		635	}
	661	{		636	{
	662	PyObject *tmp_assign_source_7;		637	PyObject *tmp_assign_source_7;
	663			638
	664			639