Construct DictCreation

Kay Hayen

2013-08-15 08:15

Performance Diagrams

Source Code with Construct

module_value1 = module_value2 = module_value3 = module_value4 = 1000
module_key1 = module_key2 = module_key3 = module_key4 = 1000

def calledRepeatedly():
    # Force frame and eliminate forward propagation (currently).
    module_value1

# construct_begin
    l = {
        module_key1 : module_value1,
        module_key2 : module_value2,
        module_key3 : module_value3,
        module_key4 : module_value4
    }
# construct_alternative



    return l

import itertools
for x in itertools.repeat(None, 50000):
    calledRepeatedly()

print("OK.")

Source Code without Construct

module_value1 = module_value2 = module_value3 = module_value4 = 1000
module_key1 = module_key2 = module_key3 = module_key4 = 1000

def calledRepeatedly():
    # Force frame and eliminate forward propagation (currently).
    module_value1

# construct_begin






# construct_alternative
    l = 1
# construct_end

    return l

import itertools
for x in itertools.repeat(None, 50000):
    calledRepeatedly()

print("OK.")

Context Diff of Source Code

	Construct			Baseline
	23	def calledRepeatedly():		23	def calledRepeatedly():
	24	# Force frame and eliminate forward propagation (currently).		24	# Force frame and eliminate forward propagation (currently).
	25	module_value1		25	module_value1
	26			26
	27	# construct_begin		27	# construct_begin
n	28	l = {	n
	29	module_key1 : module_value1,
	30	module_key2 : module_value2,
	31	module_key3 : module_value3,
	32	module_key4 : module_value4
	33	}
	34	# construct_alternative
	35			28
	36			29
t			t	30
				31
				32
				33
				34	# construct_alternative
				35	l = 1
				36	# construct_end
	37			37
	38	return l		38	return l
	39			39
	40	import itertools		40	import itertools
	41	for x in itertools.repeat(None, 50000):		41	for x in itertools.repeat(None, 50000):

Context Diff of Generated Code

	Construct			Baseline
	35	static PyObject *const_tuple_str_plain_l_tuple;		35	static PyObject *const_tuple_str_plain_l_tuple;
	36	static PyObject *const_str_plain_module_key4;		36	static PyObject *const_str_plain_module_key4;
	37	static PyObject *const_str_digest_b371d0efe6d141c0695199761435a3cd;		37	static PyObject *const_str_digest_b371d0efe6d141c0695199761435a3cd;
	38	static PyObject *const_str_plain_module_value4;		38	static PyObject *const_str_plain_module_value4;
	39	static PyObject *const_str_plain_module_key3;		39	static PyObject *const_str_plain_module_key3;
n			n	40	extern PyObject *const_int_pos_1;
	40	extern PyObject *const_str_plain___file__;		41	extern PyObject *const_str_plain___file__;
	41	extern PyObject *const_int_0;		42	extern PyObject *const_int_0;
	42	static PyObject *const_str_plain_module_key2;		43	static PyObject *const_str_plain_module_key2;
	43	extern PyObject *const_str_plain_print;		44	extern PyObject *const_str_plain_print;
	44	static PyObject *const_int_pos_50000;		45	static PyObject *const_int_pos_50000;
	133	#ifndef __NUITKA_NO_ASSERT__		134	#ifndef __NUITKA_NO_ASSERT__
	134	NUITKA_MAY_BE_UNUSED bool had_error = ERROR_OCCURRED();		135	NUITKA_MAY_BE_UNUSED bool had_error = ERROR_OCCURRED();
	135	#endif		136	#endif
	136			137
	137	// Local variable declarations.		138	// Local variable declarations.
n	138	PyObject *var_l = NULL;	n
	139	struct Nuitka_FrameObject *frame_2375a99e3b5977739d2f656f64e93bf8;		139	struct Nuitka_FrameObject *frame_2375a99e3b5977739d2f656f64e93bf8;
	140	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;		140	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;
	141	PyObject *exception_type = NULL;		141	PyObject *exception_type = NULL;
	142	PyObject *exception_value = NULL;		142	PyObject *exception_value = NULL;
	143	PyTracebackObject *exception_tb = NULL;		143	PyTracebackObject *exception_tb = NULL;
	144	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		144	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n	145	int tmp_res;	n
	146	static struct Nuitka_FrameObject *cache_frame_2375a99e3b5977739d2f656f64e93bf8 = NULL;		145	static struct Nuitka_FrameObject *cache_frame_2375a99e3b5977739d2f656f64e93bf8 = NULL;
	147	PyObject *tmp_return_value = NULL;		146	PyObject *tmp_return_value = NULL;
n	148	PyObject *exception_keeper_type_1;	n
	149	PyObject *exception_keeper_value_1;
	150	PyTracebackObject *exception_keeper_tb_1;
	151	NUITKA_MAY_BE_UNUSED int exception_keeper_lineno_1;
	152			147
	153	// Actual function body.		148	// Actual function body.
n	154	// Tried code:	n
	155	MAKE_OR_REUSE_FRAME( cache_frame_2375a99e3b5977739d2f656f64e93bf8, codeobj_2375a99e3b5977739d2f656f64e93bf8, module___main__, sizeof(void *) );		149	MAKE_OR_REUSE_FRAME( cache_frame_2375a99e3b5977739d2f656f64e93bf8, codeobj_2375a99e3b5977739d2f656f64e93bf8, module___main__, sizeof(void *) );
	156	frame_2375a99e3b5977739d2f656f64e93bf8 = cache_frame_2375a99e3b5977739d2f656f64e93bf8;		150	frame_2375a99e3b5977739d2f656f64e93bf8 = cache_frame_2375a99e3b5977739d2f656f64e93bf8;
	157			151
	158	// Push the new frame as the currently active one.		152	// Push the new frame as the currently active one.
	159	pushFrameStack( frame_2375a99e3b5977739d2f656f64e93bf8 );		153	pushFrameStack( frame_2375a99e3b5977739d2f656f64e93bf8 );
	180	exception_tb = NULL;		174	exception_tb = NULL;
	181	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );		175	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	182	CHAIN_EXCEPTION( exception_value );		176	CHAIN_EXCEPTION( exception_value );
	183			177
	184	exception_lineno = 25;		178	exception_lineno = 25;
n	185	type_description_1 = "o";	n	179	type_description_1 = "N";
	186	goto frame_exception_exit_1;		180	goto frame_exception_exit_1;
	187	}		181	}
	188			182
n	189	}	n
	190	{
	191	PyObject *tmp_assign_source_1;
	192	PyObject *tmp_dict_key_1;
	193	PyObject *tmp_dict_value_1;
	194	PyObject *tmp_mvar_value_2;
	195	PyObject *tmp_mvar_value_3;
	196	PyObject *tmp_dict_key_2;
	197	PyObject *tmp_dict_value_2;
	198	PyObject *tmp_mvar_value_4;
	199	PyObject *tmp_mvar_value_5;
	200	PyObject *tmp_dict_key_3;
	201	PyObject *tmp_dict_value_3;
	202	PyObject *tmp_mvar_value_6;
	203	PyObject *tmp_mvar_value_7;
	204	PyObject *tmp_dict_key_4;
	205	PyObject *tmp_dict_value_4;
	206	PyObject *tmp_mvar_value_8;
	207	PyObject *tmp_mvar_value_9;
	208	tmp_mvar_value_2 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_key1 );
	209
	210	if (unlikely( tmp_mvar_value_2 == NULL ))
	211	{
	212	tmp_mvar_value_2 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_key1 );
	213	}
	214
	215	if ( tmp_mvar_value_2 == NULL )
	216	{
	217
	218	exception_type = PyExc_NameError;
	219	Py_INCREF( exception_type );
	220	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_key1" );
	221	exception_tb = NULL;
	222	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	223	CHAIN_EXCEPTION( exception_value );
	224
	225	exception_lineno = 29;
	226	type_description_1 = "o";
	227	goto frame_exception_exit_1;
	228	}
	229
	230	tmp_dict_key_1 = tmp_mvar_value_2;
	231	tmp_mvar_value_3 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value1 );
	232
	233	if (unlikely( tmp_mvar_value_3 == NULL ))
	234	{
	235	tmp_mvar_value_3 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value1 );
	236	}
	237
	238	if ( tmp_mvar_value_3 == NULL )
	239	{
	240
	241	exception_type = PyExc_NameError;
	242	Py_INCREF( exception_type );
	243	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_value1" );
	244	exception_tb = NULL;
	245	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	246	CHAIN_EXCEPTION( exception_value );
	247
	248	exception_lineno = 29;
	249	type_description_1 = "o";
	250	goto frame_exception_exit_1;
	251	}
	252
	253	tmp_dict_value_1 = tmp_mvar_value_3;
	254	tmp_assign_source_1 = _PyDict_NewPresized( 4 );
	255	tmp_res = PyDict_SetItem( tmp_assign_source_1, tmp_dict_key_1, tmp_dict_value_1 );
	256	if ( tmp_res != 0 )
	257	{
	258	assert( ERROR_OCCURRED() );
	259
	260	FETCH_ERROR_OCCURRED( &exception_type, &exception_value, &exception_tb );
	261	Py_DECREF( tmp_assign_source_1 );
	262
	263	exception_lineno = 28;
	264	type_description_1 = "o";
	265	goto frame_exception_exit_1;
	266	}
	267	tmp_mvar_value_4 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_key2 );
	268
	269	if (unlikely( tmp_mvar_value_4 == NULL ))
	270	{
	271	tmp_mvar_value_4 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_key2 );
	272	}
	273
	274	if ( tmp_mvar_value_4 == NULL )
	275	{
	276	Py_DECREF( tmp_assign_source_1 );
	277	exception_type = PyExc_NameError;
	278	Py_INCREF( exception_type );
	279	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_key2" );
	280	exception_tb = NULL;
	281	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	282	CHAIN_EXCEPTION( exception_value );
	283
	284	exception_lineno = 30;
	285	type_description_1 = "o";
	286	goto frame_exception_exit_1;
	287	}
	288
	289	tmp_dict_key_2 = tmp_mvar_value_4;
	290	tmp_mvar_value_5 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value2 );
	291
	292	if (unlikely( tmp_mvar_value_5 == NULL ))
	293	{
	294	tmp_mvar_value_5 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value2 );
	295	}
	296
	297	if ( tmp_mvar_value_5 == NULL )
	298	{
	299	Py_DECREF( tmp_assign_source_1 );
	300	exception_type = PyExc_NameError;
	301	Py_INCREF( exception_type );
	302	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_value2" );
	303	exception_tb = NULL;
	304	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	305	CHAIN_EXCEPTION( exception_value );
	306
	307	exception_lineno = 30;
	308	type_description_1 = "o";
	309	goto frame_exception_exit_1;
	310	}
	311
	312	tmp_dict_value_2 = tmp_mvar_value_5;
	313	tmp_res = PyDict_SetItem( tmp_assign_source_1, tmp_dict_key_2, tmp_dict_value_2 );
	314	if ( tmp_res != 0 )
	315	{
	316	assert( ERROR_OCCURRED() );
	317
	318	FETCH_ERROR_OCCURRED( &exception_type, &exception_value, &exception_tb );
	319	Py_DECREF( tmp_assign_source_1 );
	320
	321	exception_lineno = 28;
	322	type_description_1 = "o";
	323	goto frame_exception_exit_1;
	324	}
	325	tmp_mvar_value_6 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_key3 );
	326
	327	if (unlikely( tmp_mvar_value_6 == NULL ))
	328	{
	329	tmp_mvar_value_6 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_key3 );
	330	}
	331
	332	if ( tmp_mvar_value_6 == NULL )
	333	{
	334	Py_DECREF( tmp_assign_source_1 );
	335	exception_type = PyExc_NameError;
	336	Py_INCREF( exception_type );
	337	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_key3" );
	338	exception_tb = NULL;
	339	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	340	CHAIN_EXCEPTION( exception_value );
	341
	342	exception_lineno = 31;
	343	type_description_1 = "o";
	344	goto frame_exception_exit_1;
	345	}
	346
	347	tmp_dict_key_3 = tmp_mvar_value_6;
	348	tmp_mvar_value_7 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value3 );
	349
	350	if (unlikely( tmp_mvar_value_7 == NULL ))
	351	{
	352	tmp_mvar_value_7 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value3 );
	353	}
	354
	355	if ( tmp_mvar_value_7 == NULL )
	356	{
	357	Py_DECREF( tmp_assign_source_1 );
	358	exception_type = PyExc_NameError;
	359	Py_INCREF( exception_type );
	360	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_value3" );
	361	exception_tb = NULL;
	362	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	363	CHAIN_EXCEPTION( exception_value );
	364
	365	exception_lineno = 31;
	366	type_description_1 = "o";
	367	goto frame_exception_exit_1;
	368	}
	369
	370	tmp_dict_value_3 = tmp_mvar_value_7;
	371	tmp_res = PyDict_SetItem( tmp_assign_source_1, tmp_dict_key_3, tmp_dict_value_3 );
	372	if ( tmp_res != 0 )
	373	{
	374	assert( ERROR_OCCURRED() );
	375
	376	FETCH_ERROR_OCCURRED( &exception_type, &exception_value, &exception_tb );
	377	Py_DECREF( tmp_assign_source_1 );
	378
	379	exception_lineno = 28;
	380	type_description_1 = "o";
	381	goto frame_exception_exit_1;
	382	}
	383	tmp_mvar_value_8 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_key4 );
	384
	385	if (unlikely( tmp_mvar_value_8 == NULL ))
	386	{
	387	tmp_mvar_value_8 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_key4 );
	388	}
	389
	390	if ( tmp_mvar_value_8 == NULL )
	391	{
	392	Py_DECREF( tmp_assign_source_1 );
	393	exception_type = PyExc_NameError;
	394	Py_INCREF( exception_type );
	395	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_key4" );
	396	exception_tb = NULL;
	397	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	398	CHAIN_EXCEPTION( exception_value );
	399
	400	exception_lineno = 32;
	401	type_description_1 = "o";
	402	goto frame_exception_exit_1;
	403	}
	404
	405	tmp_dict_key_4 = tmp_mvar_value_8;
	406	tmp_mvar_value_9 = GET_STRING_DICT_VALUE( moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value4 );
	407
	408	if (unlikely( tmp_mvar_value_9 == NULL ))
	409	{
	410	tmp_mvar_value_9 = GET_STRING_DICT_VALUE( dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value4 );
	411	}
	412
	413	if ( tmp_mvar_value_9 == NULL )
	414	{
	415	Py_DECREF( tmp_assign_source_1 );
	416	exception_type = PyExc_NameError;
	417	Py_INCREF( exception_type );
	418	exception_value = PyUnicode_FromFormat( "name '%s' is not defined", "module_value4" );
	419	exception_tb = NULL;
	420	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	421	CHAIN_EXCEPTION( exception_value );
	422
	423	exception_lineno = 32;
	424	type_description_1 = "o";
	425	goto frame_exception_exit_1;
	426	}
	427
	428	tmp_dict_value_4 = tmp_mvar_value_9;
	429	tmp_res = PyDict_SetItem( tmp_assign_source_1, tmp_dict_key_4, tmp_dict_value_4 );
	430	if ( tmp_res != 0 )
	431	{
	432	assert( ERROR_OCCURRED() );
	433
	434	FETCH_ERROR_OCCURRED( &exception_type, &exception_value, &exception_tb );
	435	Py_DECREF( tmp_assign_source_1 );
	436
	437	exception_lineno = 28;
	438	type_description_1 = "o";
	439	goto frame_exception_exit_1;
	440	}
	441	assert( var_l == NULL );
	442	var_l = tmp_assign_source_1;
	443	}		183	}
	444			184
	445	#if 0		185	#if 0
	446	RESTORE_FRAME_EXCEPTION( frame_2375a99e3b5977739d2f656f64e93bf8 );		186	RESTORE_FRAME_EXCEPTION( frame_2375a99e3b5977739d2f656f64e93bf8 );
	447	#endif		187	#endif
	468			208
	469	// Attachs locals to frame if any.		209	// Attachs locals to frame if any.
	470	Nuitka_Frame_AttachLocals(		210	Nuitka_Frame_AttachLocals(
	471	(struct Nuitka_FrameObject *)frame_2375a99e3b5977739d2f656f64e93bf8,		211	(struct Nuitka_FrameObject *)frame_2375a99e3b5977739d2f656f64e93bf8,
	472	type_description_1,		212	type_description_1,
n	473	var_l	n	213	NULL
	474	);		214	);
	475			215
	476			216
	477	// Release cached frame.		217	// Release cached frame.
	478	if ( frame_2375a99e3b5977739d2f656f64e93bf8 == cache_frame_2375a99e3b5977739d2f656f64e93bf8 )		218	if ( frame_2375a99e3b5977739d2f656f64e93bf8 == cache_frame_2375a99e3b5977739d2f656f64e93bf8 )
	485			225
	486	// Put the previous frame back on top.		226	// Put the previous frame back on top.
	487	popFrameStack();		227	popFrameStack();
	488			228
	489	// Return the error.		229	// Return the error.
n	490	goto try_except_handler_1;	n	230	goto function_exception_exit;
	491			231
	492	frame_no_exception_1:;		232	frame_no_exception_1:;
n	493	CHECK_OBJECT( var_l );	n	233	tmp_return_value = const_int_pos_1;
	494	tmp_return_value = var_l;
	495	Py_INCREF( tmp_return_value );		234	Py_INCREF( tmp_return_value );
n	496	goto try_return_handler_1;	n
	497	// tried codes exits in all cases
	498	NUITKA_CANNOT_GET_HERE( __main__$$$function_1_calledRepeatedly );
	499	return NULL;
	500	// Return handler code:
	501	try_return_handler_1:;
	502	CHECK_OBJECT( (PyObject *)var_l );
	503	Py_DECREF( var_l );
	504	var_l = NULL;
	505
	506	goto function_return_exit;		235	goto function_return_exit;
t	507	// Exception handler code:	t
	508	try_except_handler_1:;
	509	exception_keeper_type_1 = exception_type;
	510	exception_keeper_value_1 = exception_value;
	511	exception_keeper_tb_1 = exception_tb;
	512	exception_keeper_lineno_1 = exception_lineno;
	513	exception_type = NULL;
	514	exception_value = NULL;
	515	exception_tb = NULL;
	516	exception_lineno = 0;
	517
	518	// Re-raise.
	519	exception_type = exception_keeper_type_1;
	520	exception_value = exception_keeper_value_1;
	521	exception_tb = exception_keeper_tb_1;
	522	exception_lineno = exception_keeper_lineno_1;
	523
	524	goto function_exception_exit;
	525	// End of try:
	526			236
	527	// Return statement must have exited already.		237	// Return statement must have exited already.
	528	NUITKA_CANNOT_GET_HERE( __main__$$$function_1_calledRepeatedly );		238	NUITKA_CANNOT_GET_HERE( __main__$$$function_1_calledRepeatedly );
	529	return NULL;		239	return NULL;
	530			240