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_1ef7c8a1ef1547c15388d6726065dd86;		62	static PyCodeObject *codeobj_1ef7c8a1ef1547c15388d6726065dd86;
	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_75104854990dcc18a9dca3a2b6bc974d = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[16], mod_consts[17], 0, 0, 0);		68	codeobj_75104854990dcc18a9dca3a2b6bc974d = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[16], mod_consts[17], 0, 0, 0);
	69	codeobj_1ef7c8a1ef1547c15388d6726065dd86 = MAKE_CODEOBJECT(module_filename_obj, 24, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[8], mod_consts[17], 0, 0, 0);		69	codeobj_1ef7c8a1ef1547c15388d6726065dd86 = 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_1ef7c8a1ef1547c15388d6726065dd86 = NULL;
	91	PyObject *tmp_return_value = NULL;		92	PyObject *tmp_return_value = NULL;
n	92	static struct Nuitka_FrameObject *cache_frame_1ef7c8a1ef1547c15388d6726065dd86 = NULL;	n
	93			93
	94	// Actual function body.		94	// Actual function body.
	95	if (isFrameUnusable(cache_frame_1ef7c8a1ef1547c15388d6726065dd86)) {		95	if (isFrameUnusable(cache_frame_1ef7c8a1ef1547c15388d6726065dd86)) {
	96	Py_XDECREF(cache_frame_1ef7c8a1ef1547c15388d6726065dd86);		96	Py_XDECREF(cache_frame_1ef7c8a1ef1547c15388d6726065dd86);
	97			97
	131	exception_lineno = 25;		131	exception_lineno = 25;
	132			132
	133	goto frame_exception_exit_1;		133	goto frame_exception_exit_1;
	134	}		134	}
	135	}		135	}
n	136	tmp_return_value = GET_MODULE_VARIABLE_VALUE(moduledict___main__, mod_consts[1]);	n
	137	if (tmp_return_value == NULL) {
	138	assert(ERROR_OCCURRED());
	139
	140	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	141
	142
	143	exception_lineno = 27;
	144
	145	goto frame_exception_exit_1;
	146	}
	147	Py_INCREF(tmp_return_value);
	148	goto frame_return_exit_1;
	149			136
	150	#if 0		137	#if 0
	151	RESTORE_FRAME_EXCEPTION(frame_1ef7c8a1ef1547c15388d6726065dd86);		138	RESTORE_FRAME_EXCEPTION(frame_1ef7c8a1ef1547c15388d6726065dd86);
	152	#endif		139	#endif
	153			140
	154	// Put the previous frame back on top.		141	// Put the previous frame back on top.
	155	popFrameStack();		142	popFrameStack();
	156			143
	157	goto frame_no_exception_1;		144	goto frame_no_exception_1;
n	158		n
	159	frame_return_exit_1:;
	160	#if 0
	161	RESTORE_FRAME_EXCEPTION(frame_1ef7c8a1ef1547c15388d6726065dd86);
	162	#endif
	163
	164	// Put the previous frame back on top.
	165	popFrameStack();
	166
	167	goto function_return_exit;
	168			145
	169	frame_exception_exit_1:;		146	frame_exception_exit_1:;
	170			147
	171	#if 0		148	#if 0
	172	RESTORE_FRAME_EXCEPTION(frame_1ef7c8a1ef1547c15388d6726065dd86);		149	RESTORE_FRAME_EXCEPTION(frame_1ef7c8a1ef1547c15388d6726065dd86);
	203			180
	204	// Return the error.		181	// Return the error.
	205	goto function_exception_exit;		182	goto function_exception_exit;
	206			183
	207	frame_no_exception_1:;		184	frame_no_exception_1:;
n			n	185	tmp_return_value = Py_None;
				186	Py_INCREF(tmp_return_value);
				187	goto function_return_exit;
	208			188
	209	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");		189	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");
	210	return NULL;		190	return NULL;
	211			191
	212	function_exception_exit:		192	function_exception_exit:
	631			611
	632	// Module code.		612	// Module code.
	633	{		613	{
	634	PyObject *tmp_assign_source_1;		614	PyObject *tmp_assign_source_1;
	635	tmp_assign_source_1 = Py_None;		615	tmp_assign_source_1 = Py_None;
n	636	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_1);	n	616	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_1);
	637	}		617	}
	638	{		618	{
	639	PyObject *tmp_assign_source_2;		619	PyObject *tmp_assign_source_2;
n	640	tmp_assign_source_2 = mod_consts[3];	n	620	tmp_assign_source_2 = mod_consts[2];
	641	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_2);		621	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[3], tmp_assign_source_2);
	642	}		622	}
	643	{		623	{
	644	PyObject *tmp_assign_source_3;		624	PyObject *tmp_assign_source_3;
	645	tmp_assign_source_3 = Py_None;		625	tmp_assign_source_3 = Py_None;
n	646	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_3);	n	626	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_3);
	647	}		627	}
	648	{		628	{
	649	PyObject *tmp_assign_source_4;		629	PyObject *tmp_assign_source_4;
n	650	tmp_assign_source_4 = mod_consts[6];	n	630	tmp_assign_source_4 = mod_consts[5];
	651	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);		631	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);
	652	}		632	}
	653	{		633	{
	654	PyObject *tmp_assign_source_5;		634	PyObject *tmp_assign_source_5;
t	655	tmp_assign_source_5 = mod_consts[7];	t	635	tmp_assign_source_5 = mod_consts[6];
	656	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_5);		636	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[7], tmp_assign_source_5);
	657	}		637	}
	658	{		638	{
	659	PyObject *tmp_assign_source_6;		639	PyObject *tmp_assign_source_6;
	660			640
	661			641