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
	58	static bool constants_created = false;		58	static bool constants_created = false;
	59			59
	60	/* Function to create module private constants. */		60	/* Function to create module private constants. */
	61	static void createModuleConstants( void )		61	static void createModuleConstants( void )
	62	{		62	{
n	63	const_str_plain_itertools = UNSTREAM_STRING_ASCII(&constant_bin[ 108 ], 9, 1);	n	63	const_str_plain_itertools = UNSTREAM_STRING_ASCII(&constant_bin[ 73 ], 9, 1);
	64	const_str_digest_7a2add6b560ecdf4e31fb9dfaf12c319 = UNSTREAM_STRING_ASCII(&constant_bin[ 117 ], 45, 0);		64	const_str_digest_7a2add6b560ecdf4e31fb9dfaf12c319 = UNSTREAM_STRING_ASCII(&constant_bin[ 82 ], 45, 0);
	65	const_int_pos_50000 = PyLong_FromUnsignedLong(50000ul);		65	const_int_pos_50000 = PyLong_FromUnsignedLong(50000ul);
	66	const_int_pos_2000 = PyLong_FromUnsignedLong(2000ul);		66	const_int_pos_2000 = PyLong_FromUnsignedLong(2000ul);
n	67	const_str_plain_module_value2 = UNSTREAM_STRING_ASCII(&constant_bin[ 41 ], 13, 1);	n	67	const_str_plain_module_value2 = UNSTREAM_STRING_ASCII(&constant_bin[ 127 ], 13, 1);
	68	const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple = PyTuple_New(1);		68	const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple = PyTuple_New(1);
n	69	const_str_digest_5ed1392909ad16e6227b8230f4582352 = UNSTREAM_STRING_ASCII(&constant_bin[ 162 ], 3, 0);	n	69	const_str_digest_5ed1392909ad16e6227b8230f4582352 = UNSTREAM_STRING_ASCII(&constant_bin[ 140 ], 3, 0);
	70	PyTuple_SET_ITEM(const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple, 0, const_str_digest_5ed1392909ad16e6227b8230f4582352); Py_INCREF(const_str_digest_5ed1392909ad16e6227b8230f4582352);		70	PyTuple_SET_ITEM(const_tuple_str_digest_5ed1392909ad16e6227b8230f4582352_tuple, 0, const_str_digest_5ed1392909ad16e6227b8230f4582352); Py_INCREF(const_str_digest_5ed1392909ad16e6227b8230f4582352);
	71	const_int_pos_1000 = PyLong_FromUnsignedLong(1000ul);		71	const_int_pos_1000 = PyLong_FromUnsignedLong(1000ul);
	72	const_str_plain_module_value1 = UNSTREAM_STRING_ASCII(&constant_bin[ 6 ], 13, 1);		72	const_str_plain_module_value1 = UNSTREAM_STRING_ASCII(&constant_bin[ 6 ], 13, 1);
n	73	const_str_plain_calledRepeatedly = UNSTREAM_STRING_ASCII(&constant_bin[ 76 ], 16, 1);	n	73	const_str_plain_calledRepeatedly = UNSTREAM_STRING_ASCII(&constant_bin[ 41 ], 16, 1);
	74	const_str_angle_module = UNSTREAM_STRING_ASCII(&constant_bin[ 165 ], 8, 0);		74	const_str_angle_module = UNSTREAM_STRING_ASCII(&constant_bin[ 143 ], 8, 0);
	75	const_str_plain_None = UNSTREAM_STRING_ASCII(&constant_bin[ 173 ], 4, 1);		75	const_str_plain_None = UNSTREAM_STRING_ASCII(&constant_bin[ 151 ], 4, 1);
	76	const_str_plain_x = UNSTREAM_STRING_ASCII(&constant_bin[ 177 ], 1, 1);		76	const_str_plain_x = UNSTREAM_STRING_ASCII(&constant_bin[ 155 ], 1, 1);
	77	const_str_plain_repeat = UNSTREAM_STRING_ASCII(&constant_bin[ 178 ], 6, 1);		77	const_str_plain_repeat = UNSTREAM_STRING_ASCII(&constant_bin[ 156 ], 6, 1);
	78	const_tuple_none_int_pos_50000_tuple = PyTuple_New(2);		78	const_tuple_none_int_pos_50000_tuple = PyTuple_New(2);
	79	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 0, Py_None); Py_INCREF(Py_None);		79	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 0, Py_None); Py_INCREF(Py_None);
	80	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 1, const_int_pos_50000); Py_INCREF(const_int_pos_50000);		80	PyTuple_SET_ITEM(const_tuple_none_int_pos_50000_tuple, 1, const_int_pos_50000); Py_INCREF(const_int_pos_50000);
	81			81
	82	constants_created = true;		82	constants_created = true;
	122	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;		122	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;
	123	PyObject *exception_type = NULL;		123	PyObject *exception_type = NULL;
	124	PyObject *exception_value = NULL;		124	PyObject *exception_value = NULL;
	125	PyTracebackObject *exception_tb = NULL;		125	PyTracebackObject *exception_tb = NULL;
	126	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		126	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n			n	127	static struct Nuitka_FrameObject *cache_frame_25648caef1e08b7d1adfeee93d92a867 = NULL;
	127	PyObject *tmp_return_value = NULL;		128	PyObject *tmp_return_value = NULL;
n	128	static struct Nuitka_FrameObject *cache_frame_25648caef1e08b7d1adfeee93d92a867 = NULL;	n
	129			129
	130	// Actual function body.		130	// Actual function body.
	131	MAKE_OR_REUSE_FRAME(cache_frame_25648caef1e08b7d1adfeee93d92a867, codeobj_25648caef1e08b7d1adfeee93d92a867, module___main__, 0);		131	MAKE_OR_REUSE_FRAME(cache_frame_25648caef1e08b7d1adfeee93d92a867, codeobj_25648caef1e08b7d1adfeee93d92a867, module___main__, 0);
	132	frame_25648caef1e08b7d1adfeee93d92a867 = cache_frame_25648caef1e08b7d1adfeee93d92a867;		132	frame_25648caef1e08b7d1adfeee93d92a867 = cache_frame_25648caef1e08b7d1adfeee93d92a867;
	133			133
	159			159
	160	goto frame_exception_exit_1;		160	goto frame_exception_exit_1;
	161	}		161	}
	162			162
	163	}		163	}
n	164	{	n
	165	PyObject *tmp_mvar_value_2;
	166	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value2);
	167
	168	if (unlikely(tmp_mvar_value_2 == NULL)) {
	169	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value2);
	170	}
	171
	172	if (tmp_mvar_value_2 == NULL) {
	173
	174	exception_type = PyExc_NameError;
	175	Py_INCREF(exception_type);
	176	exception_value = UNSTREAM_STRING(&constant_bin[ 35 ], 35, 0);
	177	exception_tb = NULL;
	178	NORMALIZE_EXCEPTION(&exception_type, &exception_value, &exception_tb);
	179	CHAIN_EXCEPTION(exception_value);
	180
	181	exception_lineno = 27;
	182
	183	goto frame_exception_exit_1;
	184	}
	185
	186	tmp_return_value = tmp_mvar_value_2;
	187	Py_INCREF(tmp_return_value);
	188	goto frame_return_exit_1;
	189	}
	190			164
	191	#if 0		165	#if 0
	192	RESTORE_FRAME_EXCEPTION(frame_25648caef1e08b7d1adfeee93d92a867);		166	RESTORE_FRAME_EXCEPTION(frame_25648caef1e08b7d1adfeee93d92a867);
	193	#endif		167	#endif
	194			168
	195	// Put the previous frame back on top.		169	// Put the previous frame back on top.
	196	popFrameStack();		170	popFrameStack();
	197			171
	198	goto frame_no_exception_1;		172	goto frame_no_exception_1;
n	199		n
	200	frame_return_exit_1:;
	201	#if 0
	202	RESTORE_FRAME_EXCEPTION(frame_25648caef1e08b7d1adfeee93d92a867);
	203	#endif
	204
	205	// Put the previous frame back on top.
	206	popFrameStack();
	207
	208	goto function_return_exit;
	209			173
	210	frame_exception_exit_1:;		174	frame_exception_exit_1:;
	211			175
	212	#if 0		176	#if 0
	213	RESTORE_FRAME_EXCEPTION(frame_25648caef1e08b7d1adfeee93d92a867);		177	RESTORE_FRAME_EXCEPTION(frame_25648caef1e08b7d1adfeee93d92a867);
	240			204
	241	// Return the error.		205	// Return the error.
	242	goto function_exception_exit;		206	goto function_exception_exit;
	243			207
	244	frame_no_exception_1:;		208	frame_no_exception_1:;
n			n	209	tmp_return_value = Py_None;
				210	Py_INCREF(tmp_return_value);
				211	goto function_return_exit;
	245			212
	246	// Return statement must have exited already.		213	// Return statement must have exited already.
	247	NUITKA_CANNOT_GET_HERE(__main__$$$function_1_calledRepeatedly);		214	NUITKA_CANNOT_GET_HERE(__main__$$$function_1_calledRepeatedly);
	248	return NULL;		215	return NULL;
	249			216
	721			688
	722	if (tmp_mvar_value_2 == NULL) {		689	if (tmp_mvar_value_2 == NULL) {
	723			690
	724	exception_type = PyExc_NameError;		691	exception_type = PyExc_NameError;
	725	Py_INCREF(exception_type);		692	Py_INCREF(exception_type);
t	726	exception_value = UNSTREAM_STRING(&constant_bin[ 70 ], 38, 0);	t	693	exception_value = UNSTREAM_STRING(&constant_bin[ 35 ], 38, 0);
	727	exception_tb = NULL;		694	exception_tb = NULL;
	728	NORMALIZE_EXCEPTION(&exception_type, &exception_value, &exception_tb);		695	NORMALIZE_EXCEPTION(&exception_type, &exception_value, &exception_tb);
	729	CHAIN_EXCEPTION(exception_value);		696	CHAIN_EXCEPTION(exception_value);
	730			697
	731	exception_lineno = 34;		698	exception_lineno = 34;