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
	62	static PyCodeObject *codeobj_b1a7beef3fb19ae0cc86cac3318314ba;		62	static PyCodeObject *codeobj_b1a7beef3fb19ae0cc86cac3318314ba;
	63	/* For use in "MainProgram.c". */		63	/* For use in "MainProgram.c". */
	64	PyCodeObject *codeobj_main = NULL;		64	PyCodeObject *codeobj_main = NULL;
	65			65
	66	static void createModuleCodeObjects(void) {		66	static void createModuleCodeObjects(void) {
n	67	module_filename_obj = mod_consts[3]; CHECK_OBJECT(module_filename_obj);	n	67	module_filename_obj = mod_consts[2]; CHECK_OBJECT(module_filename_obj);
	68	codeobj_91f4fdd99c7c516c0e204645961d4723 = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[16], mod_consts[17], 0, 0, 0);		68	codeobj_91f4fdd99c7c516c0e204645961d4723 = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[16], mod_consts[17], 0, 0, 0);
	69	codeobj_b1a7beef3fb19ae0cc86cac3318314ba = MAKE_CODEOBJECT(module_filename_obj, 24, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[8], mod_consts[17], 0, 0, 0);		69	codeobj_b1a7beef3fb19ae0cc86cac3318314ba = MAKE_CODEOBJECT(module_filename_obj, 24, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[8], mod_consts[17], 0, 0, 0);
	70	}		70	}
	71			71
	72	// The module function declarations.		72	// The module function declarations.
	86	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;		86	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;
	87	PyObject *exception_type = NULL;		87	PyObject *exception_type = NULL;
	88	PyObject *exception_value = NULL;		88	PyObject *exception_value = NULL;
	89	PyTracebackObject *exception_tb = NULL;		89	PyTracebackObject *exception_tb = NULL;
	90	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		90	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n			n	91	static struct Nuitka_FrameObject *cache_frame_b1a7beef3fb19ae0cc86cac3318314ba = NULL;
	91	PyObject *tmp_return_value = NULL;		92	PyObject *tmp_return_value = NULL;
n	92	static struct Nuitka_FrameObject *cache_frame_b1a7beef3fb19ae0cc86cac3318314ba = NULL;	n
	93			93
	94	// Actual function body.		94	// Actual function body.
	95	if (isFrameUnusable(cache_frame_b1a7beef3fb19ae0cc86cac3318314ba)) {		95	if (isFrameUnusable(cache_frame_b1a7beef3fb19ae0cc86cac3318314ba)) {
	96	Py_XDECREF(cache_frame_b1a7beef3fb19ae0cc86cac3318314ba);		96	Py_XDECREF(cache_frame_b1a7beef3fb19ae0cc86cac3318314ba);
	97			97
	137			137
	138	goto frame_exception_exit_1;		138	goto frame_exception_exit_1;
	139	}		139	}
	140			140
	141	}		141	}
n	142	{	n
	143	PyObject *tmp_mvar_value_2;
	144	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[1]);
	145
	146	if (unlikely(tmp_mvar_value_2 == NULL)) {
	147	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)mod_consts[1]);
	148	}
	149
	150	if (unlikely(tmp_mvar_value_2 == NULL)) {
	151
	152	FORMAT_NAME_ERROR(&exception_type, &exception_value, mod_consts[1]);
	153	NORMALIZE_EXCEPTION(&exception_type, &exception_value, &exception_tb);
	154	CHAIN_EXCEPTION(exception_value);
	155
	156	exception_lineno = 27;
	157
	158	goto frame_exception_exit_1;
	159	}
	160
	161	tmp_return_value = tmp_mvar_value_2;
	162	Py_INCREF(tmp_return_value);
	163	goto frame_return_exit_1;
	164	}
	165			142
	166	#if 0		143	#if 0
	167	RESTORE_FRAME_EXCEPTION(frame_b1a7beef3fb19ae0cc86cac3318314ba);		144	RESTORE_FRAME_EXCEPTION(frame_b1a7beef3fb19ae0cc86cac3318314ba);
	168	#endif		145	#endif
	169			146
	170	// Put the previous frame back on top.		147	// Put the previous frame back on top.
	171	popFrameStack();		148	popFrameStack();
	172			149
	173	goto frame_no_exception_1;		150	goto frame_no_exception_1;
n	174		n
	175	frame_return_exit_1:;
	176	#if 0
	177	RESTORE_FRAME_EXCEPTION(frame_b1a7beef3fb19ae0cc86cac3318314ba);
	178	#endif
	179
	180	// Put the previous frame back on top.
	181	popFrameStack();
	182
	183	goto function_return_exit;
	184			151
	185	frame_exception_exit_1:;		152	frame_exception_exit_1:;
	186			153
	187	#if 0		154	#if 0
	188	RESTORE_FRAME_EXCEPTION(frame_b1a7beef3fb19ae0cc86cac3318314ba);		155	RESTORE_FRAME_EXCEPTION(frame_b1a7beef3fb19ae0cc86cac3318314ba);
	219			186
	220	// Return the error.		187	// Return the error.
	221	goto function_exception_exit;		188	goto function_exception_exit;
	222			189
	223	frame_no_exception_1:;		190	frame_no_exception_1:;
n			n	191	tmp_return_value = Py_None;
				192	Py_INCREF(tmp_return_value);
				193	goto function_return_exit;
	224			194
	225	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");		195	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");
	226	return NULL;		196	return NULL;
	227			197
	228	function_exception_exit:		198	function_exception_exit:
	646			616
	647	// Module code.		617	// Module code.
	648	{		618	{
	649	PyObject *tmp_assign_source_1;		619	PyObject *tmp_assign_source_1;
	650	tmp_assign_source_1 = Py_None;		620	tmp_assign_source_1 = Py_None;
n	651	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_1);	n	621	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_1);
	652	}		622	}
	653	{		623	{
	654	PyObject *tmp_assign_source_2;		624	PyObject *tmp_assign_source_2;
n	655	tmp_assign_source_2 = mod_consts[3];	n	625	tmp_assign_source_2 = mod_consts[2];
	656	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_2);		626	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[3], tmp_assign_source_2);
	657	}		627	}
	658	{		628	{
	659	PyObject *tmp_assign_source_3;		629	PyObject *tmp_assign_source_3;
	660	tmp_assign_source_3 = Py_None;		630	tmp_assign_source_3 = Py_None;
n	661	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_3);	n	631	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_3);
	662	}		632	}
	663	{		633	{
	664	PyObject *tmp_assign_source_4;		634	PyObject *tmp_assign_source_4;
n	665	tmp_assign_source_4 = mod_consts[6];	n	635	tmp_assign_source_4 = mod_consts[5];
	666	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);		636	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);
	667	}		637	}
	668	{		638	{
	669	PyObject *tmp_assign_source_5;		639	PyObject *tmp_assign_source_5;
t	670	tmp_assign_source_5 = mod_consts[7];	t	640	tmp_assign_source_5 = mod_consts[6];
	671	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_5);		641	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[7], tmp_assign_source_5);
	672	}		642	}
	673	{		643	{
	674	PyObject *tmp_assign_source_6;		644	PyObject *tmp_assign_source_6;
	675			645
	676			646