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
	124	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;		124	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;
	125	PyObject *exception_type = NULL;		125	PyObject *exception_type = NULL;
	126	PyObject *exception_value = NULL;		126	PyObject *exception_value = NULL;
	127	PyTracebackObject *exception_tb = NULL;		127	PyTracebackObject *exception_tb = NULL;
	128	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		128	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n			n	129	static struct Nuitka_FrameObject *cache_frame_a36c3afd98b8d90346e925546cae715f = NULL;
	129	PyObject *tmp_return_value = NULL;		130	PyObject *tmp_return_value = NULL;
n	130	static struct Nuitka_FrameObject *cache_frame_a36c3afd98b8d90346e925546cae715f = NULL;	n
	131			131
	132	// Actual function body.		132	// Actual function body.
	133	MAKE_OR_REUSE_FRAME( cache_frame_a36c3afd98b8d90346e925546cae715f, codeobj_a36c3afd98b8d90346e925546cae715f, module___main__, 0 );		133	MAKE_OR_REUSE_FRAME( cache_frame_a36c3afd98b8d90346e925546cae715f, codeobj_a36c3afd98b8d90346e925546cae715f, module___main__, 0 );
	134	frame_a36c3afd98b8d90346e925546cae715f = cache_frame_a36c3afd98b8d90346e925546cae715f;		134	frame_a36c3afd98b8d90346e925546cae715f = cache_frame_a36c3afd98b8d90346e925546cae715f;
	135			135
	163			163
	164	goto frame_exception_exit_1;		164	goto frame_exception_exit_1;
	165	}		165	}
	166			166
	167	}		167	}
n	168	{	n
	169	PyObject *tmp_mvar_value_2;
	170	tmp_mvar_value_2 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value2 );
	171
	172	if (unlikely( tmp_mvar_value_2 == NULL ))
	173	{
	174	tmp_mvar_value_2 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value2 );
	175	}
	176
	177	if ( tmp_mvar_value_2 == NULL )
	178	{
	179
	180	exception_type = PyExc_NameError;
	181	Py_INCREF( exception_type );
	182	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_value2" );
	183	exception_tb = NULL;
	184	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	185	CHAIN_EXCEPTION( exception_value );
	186
	187	exception_lineno = 27;
	188
	189	goto frame_exception_exit_1;
	190	}
	191
	192	tmp_return_value = tmp_mvar_value_2;
	193	Py_INCREF( tmp_return_value );
	194	goto frame_return_exit_1;
	195	}
	196			168
	197	#if 0		169	#if 0
	198	RESTORE_FRAME_EXCEPTION( frame_a36c3afd98b8d90346e925546cae715f );		170	RESTORE_FRAME_EXCEPTION( frame_a36c3afd98b8d90346e925546cae715f );
	199	#endif		171	#endif
	200			172
	201	// Put the previous frame back on top.		173	// Put the previous frame back on top.
	202	popFrameStack();		174	popFrameStack();
	203			175
	204	goto frame_no_exception_1;		176	goto frame_no_exception_1;
n	205		n
	206	frame_return_exit_1:;
	207	#if 0
	208	RESTORE_FRAME_EXCEPTION( frame_a36c3afd98b8d90346e925546cae715f );
	209	#endif
	210
	211	// Put the previous frame back on top.
	212	popFrameStack();
	213
	214	goto function_return_exit;
	215			177
	216	frame_exception_exit_1:;		178	frame_exception_exit_1:;
	217			179
	218	#if 0		180	#if 0
	219	RESTORE_FRAME_EXCEPTION( frame_a36c3afd98b8d90346e925546cae715f );		181	RESTORE_FRAME_EXCEPTION( frame_a36c3afd98b8d90346e925546cae715f );
	249			211
	250	// Return the error.		212	// Return the error.
	251	goto function_exception_exit;		213	goto function_exception_exit;
	252			214
	253	frame_no_exception_1:;		215	frame_no_exception_1:;
t			t	216	tmp_return_value = Py_None;
				217	Py_INCREF( tmp_return_value );
				218	goto function_return_exit;
	254			219
	255	// Return statement must have exited already.		220	// Return statement must have exited already.
	256	NUITKA_CANNOT_GET_HERE( __main__$$$function_1_calledRepeatedly );		221	NUITKA_CANNOT_GET_HERE( __main__$$$function_1_calledRepeatedly );
	257	return NULL;		222	return NULL;
	258			223