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
	69	static PyCodeObject *codeobj_b07b9a939aa1ecd7a60b804324136b81;		69	static PyCodeObject *codeobj_b07b9a939aa1ecd7a60b804324136b81;
	70	/* For use in "MainProgram.c". */		70	/* For use in "MainProgram.c". */
	71	PyCodeObject *codeobj_main = NULL;		71	PyCodeObject *codeobj_main = NULL;
	72			72
	73	static void createModuleCodeObjects(void) {		73	static void createModuleCodeObjects(void) {
n	74	module_filename_obj = mod_consts[3]; CHECK_OBJECT(module_filename_obj);	n	74	module_filename_obj = mod_consts[2]; CHECK_OBJECT(module_filename_obj);
	75	codeobj_8b166173857dda104a47a3da83fcd64f = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[16], NULL, NULL, 0, 0, 0);		75	codeobj_8b166173857dda104a47a3da83fcd64f = MAKE_CODEOBJECT(module_filename_obj, 1, CO_NOFREE, mod_consts[16], NULL, NULL, 0, 0, 0);
	76	codeobj_b07b9a939aa1ecd7a60b804324136b81 = MAKE_CODEOBJECT(module_filename_obj, 24, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[8], NULL, NULL, 0, 0, 0);		76	codeobj_b07b9a939aa1ecd7a60b804324136b81 = MAKE_CODEOBJECT(module_filename_obj, 24, CO_OPTIMIZED \| CO_NEWLOCALS \| CO_NOFREE, mod_consts[8], NULL, NULL, 0, 0, 0);
	77	}		77	}
	78			78
	79	// The module function declarations.		79	// The module function declarations.
	93	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;		93	NUITKA_MAY_BE_UNUSED nuitka_void tmp_unused;
	94	PyObject *exception_type = NULL;		94	PyObject *exception_type = NULL;
	95	PyObject *exception_value = NULL;		95	PyObject *exception_value = NULL;
	96	PyTracebackObject *exception_tb = NULL;		96	PyTracebackObject *exception_tb = NULL;
	97	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		97	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n			n	98	static struct Nuitka_FrameObject *cache_frame_b07b9a939aa1ecd7a60b804324136b81 = NULL;
	98	PyObject *tmp_return_value = NULL;		99	PyObject *tmp_return_value = NULL;
n	99	static struct Nuitka_FrameObject *cache_frame_b07b9a939aa1ecd7a60b804324136b81 = NULL;	n
	100			100
	101	// Actual function body.		101	// Actual function body.
	102	if (isFrameUnusable(cache_frame_b07b9a939aa1ecd7a60b804324136b81)) {		102	if (isFrameUnusable(cache_frame_b07b9a939aa1ecd7a60b804324136b81)) {
	103	Py_XDECREF(cache_frame_b07b9a939aa1ecd7a60b804324136b81);		103	Py_XDECREF(cache_frame_b07b9a939aa1ecd7a60b804324136b81);
	104			104
	143	exception_lineno = 25;		143	exception_lineno = 25;
	144			144
	145	goto frame_exception_exit_1;		145	goto frame_exception_exit_1;
	146	}		146	}
	147	}		147	}
n	148	tmp_return_value = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)mod_consts[1]);	n
	149
	150	if (unlikely(tmp_return_value == NULL)) {
	151	tmp_return_value = GET_MODULE_VARIABLE_VALUE_FALLBACK(mod_consts[1]);
	152	}
	153
	154	if (tmp_return_value == NULL) {
	155	assert(ERROR_OCCURRED());
	156
	157	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	158
	159
	160	exception_lineno = 27;
	161
	162	goto frame_exception_exit_1;
	163	}
	164	Py_INCREF(tmp_return_value);
	165	goto frame_return_exit_1;
	166			148
	167	#if 0		149	#if 0
	168	RESTORE_FRAME_EXCEPTION(frame_b07b9a939aa1ecd7a60b804324136b81);		150	RESTORE_FRAME_EXCEPTION(frame_b07b9a939aa1ecd7a60b804324136b81);
	169	#endif		151	#endif
	170			152
	171	// Put the previous frame back on top.		153	// Put the previous frame back on top.
	172	popFrameStack();		154	popFrameStack();
	173			155
	174	goto frame_no_exception_1;		156	goto frame_no_exception_1;
n	175		n
	176	frame_return_exit_1:;
	177	#if 0
	178	RESTORE_FRAME_EXCEPTION(frame_b07b9a939aa1ecd7a60b804324136b81);
	179	#endif
	180
	181	// Put the previous frame back on top.
	182	popFrameStack();
	183
	184	goto function_return_exit;
	185			157
	186	frame_exception_exit_1:;		158	frame_exception_exit_1:;
	187			159
	188	#if 0		160	#if 0
	189	RESTORE_FRAME_EXCEPTION(frame_b07b9a939aa1ecd7a60b804324136b81);		161	RESTORE_FRAME_EXCEPTION(frame_b07b9a939aa1ecd7a60b804324136b81);
	220			192
	221	// Return the error.		193	// Return the error.
	222	goto function_exception_exit;		194	goto function_exception_exit;
	223			195
	224	frame_no_exception_1:;		196	frame_no_exception_1:;
n			n	197	tmp_return_value = Py_None;
				198	Py_INCREF(tmp_return_value);
				199	goto function_return_exit;
	225			200
	226	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");		201	NUITKA_CANNOT_GET_HERE("Return statement must have exited already.");
	227	return NULL;		202	return NULL;
	228			203
	229	function_exception_exit:		204	function_exception_exit:
	656			631
	657	// Module code.		632	// Module code.
	658	{		633	{
	659	PyObject *tmp_assign_source_1;		634	PyObject *tmp_assign_source_1;
	660	tmp_assign_source_1 = Py_None;		635	tmp_assign_source_1 = Py_None;
n	661	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[2], tmp_assign_source_1);	n	636	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_1);
	662	}		637	}
	663	{		638	{
	664	PyObject *tmp_assign_source_2;		639	PyObject *tmp_assign_source_2;
n	665	tmp_assign_source_2 = mod_consts[3];	n	640	tmp_assign_source_2 = mod_consts[2];
	666	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_2);		641	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[3], tmp_assign_source_2);
	667	}		642	}
	668	{		643	{
	669	PyObject *tmp_assign_source_3;		644	PyObject *tmp_assign_source_3;
	670	tmp_assign_source_3 = Py_None;		645	tmp_assign_source_3 = Py_None;
n	671	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[5], tmp_assign_source_3);	n	646	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[4], tmp_assign_source_3);
	672	}		647	}
	673	{		648	{
	674	PyObject *tmp_assign_source_4;		649	PyObject *tmp_assign_source_4;
n	675	tmp_assign_source_4 = mod_consts[6];	n	650	tmp_assign_source_4 = mod_consts[5];
	676	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);		651	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[0], tmp_assign_source_4);
	677	}		652	}
	678	{		653	{
	679	PyObject *tmp_assign_source_5;		654	PyObject *tmp_assign_source_5;
t	680	tmp_assign_source_5 = mod_consts[7];	t	655	tmp_assign_source_5 = mod_consts[6];
	681	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[1], tmp_assign_source_5);		656	UPDATE_STRING_DICT0(moduledict___main__, (Nuitka_StringObject *)mod_consts[7], tmp_assign_source_5);
	682	}		657	}
	683	{		658	{
	684	PyObject *tmp_assign_source_6;		659	PyObject *tmp_assign_source_6;
	685			660
	686			661