Construct SetCreation

Kay Hayen

2013-08-15 08:15

Performance Diagrams

Source Code with Construct

module_value1 = 1000

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

# construct_begin
    l = {
        module_value1,
        module_value1,
        module_value1,
        module_value1,
        module_value1
    }
# construct_alternative


# construct_end

    return l

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

print("OK.")

Source Code without Construct

module_value1 = 1000

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

# construct_begin







# construct_alternative
    l = 1
# construct_end
# construct_end

    return l

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

print("OK.")

Context Diff of Source Code

	Construct			Baseline
	22	def calledRepeatedly():		22	def calledRepeatedly():
	23	# Force frame and eliminate forward propagation (currently).		23	# Force frame and eliminate forward propagation (currently).
	24	module_value1		24	module_value1
	25			25
	26	# construct_begin		26	# construct_begin
n	27	l = {	n
	28	module_value1,
	29	module_value1,
	30	module_value1,
	31	module_value1,
	32	module_value1
	33	}
	34	# construct_alternative
	35			27
	36			28
t			t	29
				30
				31
				32
				33
				34	# construct_alternative
				35	l = 1
				36	# construct_end
	37	# construct_end		37	# construct_end
	38			38
	39	return l		39	return l
	40			40
	41	import itertools		41	import itertools

Context Diff of Generated Code

	Construct			Baseline
	31	PyDictObject *moduledict___main__;		31	PyDictObject *moduledict___main__;
	32			32
	33	/* The declarations of module constants used, if any. */		33	/* The declarations of module constants used, if any. */
	34	static PyObject *const_str_plain_itertools;		34	static PyObject *const_str_plain_itertools;
	35	static PyObject *const_tuple_str_plain_l_tuple;		35	static PyObject *const_tuple_str_plain_l_tuple;
n			n	36	extern PyObject *const_int_pos_1;
	36	extern PyObject *const_str_plain___file__;		37	extern PyObject *const_str_plain___file__;
	37	static PyObject *const_str_digest_02165c9d9945854586a1df7a86212404;		38	static PyObject *const_str_digest_02165c9d9945854586a1df7a86212404;
	38	extern PyObject *const_int_0;		39	extern PyObject *const_int_0;
	39	extern PyObject *const_str_plain_print;		40	extern PyObject *const_str_plain_print;
	40	static PyObject *const_int_pos_50000;		41	static PyObject *const_int_pos_50000;
	118	#ifndef __NUITKA_NO_ASSERT__		119	#ifndef __NUITKA_NO_ASSERT__
	119	NUITKA_MAY_BE_UNUSED bool had_error = ERROR_OCCURRED();		120	NUITKA_MAY_BE_UNUSED bool had_error = ERROR_OCCURRED();
	120	#endif		121	#endif
	121			122
	122	// Local variable declarations.		123	// Local variable declarations.
n	123	PyObject *var_l = NULL;	n
	124	struct Nuitka_FrameObject *frame_5dffb30739a863aa101fa6d6a1a4b0c3;		124	struct Nuitka_FrameObject *frame_5dffb30739a863aa101fa6d6a1a4b0c3;
	125	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;		125	NUITKA_MAY_BE_UNUSED char const *type_description_1 = NULL;
	126	PyObject *exception_type = NULL;		126	PyObject *exception_type = NULL;
	127	PyObject *exception_value = NULL;		127	PyObject *exception_value = NULL;
	128	PyTracebackObject *exception_tb = NULL;		128	PyTracebackObject *exception_tb = NULL;
	129	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;		129	NUITKA_MAY_BE_UNUSED int exception_lineno = 0;
n	130	int tmp_res;	n
	131	static struct Nuitka_FrameObject *cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3 = NULL;		130	static struct Nuitka_FrameObject *cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3 = NULL;
	132	PyObject *tmp_return_value = NULL;		131	PyObject *tmp_return_value = NULL;
n	133	PyObject *exception_keeper_type_1;	n
	134	PyObject *exception_keeper_value_1;
	135	PyTracebackObject *exception_keeper_tb_1;
	136	NUITKA_MAY_BE_UNUSED int exception_keeper_lineno_1;
	137			132
	138	// Actual function body.		133	// Actual function body.
n	139	// Tried code:	n
	140	MAKE_OR_REUSE_FRAME(cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3, codeobj_5dffb30739a863aa101fa6d6a1a4b0c3, module___main__, sizeof(void *));		134	MAKE_OR_REUSE_FRAME(cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3, codeobj_5dffb30739a863aa101fa6d6a1a4b0c3, module___main__, sizeof(void *));
	141	frame_5dffb30739a863aa101fa6d6a1a4b0c3 = cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3;		135	frame_5dffb30739a863aa101fa6d6a1a4b0c3 = cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3;
	142			136
	143	// Push the new frame as the currently active one.		137	// Push the new frame as the currently active one.
	144	pushFrameStack(frame_5dffb30739a863aa101fa6d6a1a4b0c3);		138	pushFrameStack(frame_5dffb30739a863aa101fa6d6a1a4b0c3);
	164	exception_tb = NULL;		158	exception_tb = NULL;
	165	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );		159	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	166	CHAIN_EXCEPTION( exception_value );		160	CHAIN_EXCEPTION( exception_value );
	167			161
	168	exception_lineno = 24;		162	exception_lineno = 24;
n	169	type_description_1 = "o";	n	163	type_description_1 = "N";
	170	goto frame_exception_exit_1;		164	goto frame_exception_exit_1;
	171	}		165	}
	172			166
n	173	}	n
	174	{
	175	PyObject *tmp_assign_source_1;
	176	PyObject *tmp_set_element_1;
	177	PyObject *tmp_mvar_value_2;
	178	PyObject *tmp_mvar_value_3;
	179	PyObject *tmp_mvar_value_4;
	180	PyObject *tmp_mvar_value_5;
	181	PyObject *tmp_mvar_value_6;
	182	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value1);
	183
	184	if (unlikely( tmp_mvar_value_2 == NULL )) {
	185	tmp_mvar_value_2 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value1);
	186	}
	187
	188	if ( tmp_mvar_value_2 == NULL )
	189	{
	190
	191	exception_type = PyExc_NameError;
	192	Py_INCREF(exception_type);
	193	exception_value = UNSTREAM_STRING( &constant_bin[ 0 ], 35, 0 );
	194	exception_tb = NULL;
	195	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	196	CHAIN_EXCEPTION( exception_value );
	197
	198	exception_lineno = 28;
	199	type_description_1 = "o";
	200	goto frame_exception_exit_1;
	201	}
	202
	203	tmp_set_element_1 = tmp_mvar_value_2;
	204	tmp_assign_source_1 = PySet_New( NULL );
	205	assert(tmp_assign_source_1);
	206	tmp_res = PySet_Add( tmp_assign_source_1, tmp_set_element_1 );
	207	if ( tmp_res != 0 )
	208	{
	209	assert(ERROR_OCCURRED());
	210
	211	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	212	Py_DECREF(tmp_assign_source_1);
	213
	214	exception_lineno = 27;
	215	type_description_1 = "o";
	216	goto frame_exception_exit_1;
	217	}
	218	tmp_mvar_value_3 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value1);
	219
	220	if (unlikely( tmp_mvar_value_3 == NULL )) {
	221	tmp_mvar_value_3 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value1);
	222	}
	223
	224	if ( tmp_mvar_value_3 == NULL )
	225	{
	226	Py_DECREF(tmp_assign_source_1);
	227	exception_type = PyExc_NameError;
	228	Py_INCREF(exception_type);
	229	exception_value = UNSTREAM_STRING( &constant_bin[ 0 ], 35, 0 );
	230	exception_tb = NULL;
	231	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	232	CHAIN_EXCEPTION( exception_value );
	233
	234	exception_lineno = 29;
	235	type_description_1 = "o";
	236	goto frame_exception_exit_1;
	237	}
	238
	239	tmp_set_element_1 = tmp_mvar_value_3;
	240	tmp_res = PySet_Add( tmp_assign_source_1, tmp_set_element_1 );
	241	if ( tmp_res != 0 )
	242	{
	243	assert(ERROR_OCCURRED());
	244
	245	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	246	Py_DECREF(tmp_assign_source_1);
	247
	248	exception_lineno = 27;
	249	type_description_1 = "o";
	250	goto frame_exception_exit_1;
	251	}
	252	tmp_mvar_value_4 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value1);
	253
	254	if (unlikely( tmp_mvar_value_4 == NULL )) {
	255	tmp_mvar_value_4 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value1);
	256	}
	257
	258	if ( tmp_mvar_value_4 == NULL )
	259	{
	260	Py_DECREF(tmp_assign_source_1);
	261	exception_type = PyExc_NameError;
	262	Py_INCREF(exception_type);
	263	exception_value = UNSTREAM_STRING( &constant_bin[ 0 ], 35, 0 );
	264	exception_tb = NULL;
	265	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	266	CHAIN_EXCEPTION( exception_value );
	267
	268	exception_lineno = 30;
	269	type_description_1 = "o";
	270	goto frame_exception_exit_1;
	271	}
	272
	273	tmp_set_element_1 = tmp_mvar_value_4;
	274	tmp_res = PySet_Add( tmp_assign_source_1, tmp_set_element_1 );
	275	if ( tmp_res != 0 )
	276	{
	277	assert(ERROR_OCCURRED());
	278
	279	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	280	Py_DECREF(tmp_assign_source_1);
	281
	282	exception_lineno = 27;
	283	type_description_1 = "o";
	284	goto frame_exception_exit_1;
	285	}
	286	tmp_mvar_value_5 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value1);
	287
	288	if (unlikely( tmp_mvar_value_5 == NULL )) {
	289	tmp_mvar_value_5 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value1);
	290	}
	291
	292	if ( tmp_mvar_value_5 == NULL )
	293	{
	294	Py_DECREF(tmp_assign_source_1);
	295	exception_type = PyExc_NameError;
	296	Py_INCREF(exception_type);
	297	exception_value = UNSTREAM_STRING( &constant_bin[ 0 ], 35, 0 );
	298	exception_tb = NULL;
	299	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	300	CHAIN_EXCEPTION( exception_value );
	301
	302	exception_lineno = 31;
	303	type_description_1 = "o";
	304	goto frame_exception_exit_1;
	305	}
	306
	307	tmp_set_element_1 = tmp_mvar_value_5;
	308	tmp_res = PySet_Add( tmp_assign_source_1, tmp_set_element_1 );
	309	if ( tmp_res != 0 )
	310	{
	311	assert(ERROR_OCCURRED());
	312
	313	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	314	Py_DECREF(tmp_assign_source_1);
	315
	316	exception_lineno = 27;
	317	type_description_1 = "o";
	318	goto frame_exception_exit_1;
	319	}
	320	tmp_mvar_value_6 = GET_STRING_DICT_VALUE(moduledict___main__, (Nuitka_StringObject *)const_str_plain_module_value1);
	321
	322	if (unlikely( tmp_mvar_value_6 == NULL )) {
	323	tmp_mvar_value_6 = GET_STRING_DICT_VALUE(dict_builtin, (Nuitka_StringObject *)const_str_plain_module_value1);
	324	}
	325
	326	if ( tmp_mvar_value_6 == NULL )
	327	{
	328	Py_DECREF(tmp_assign_source_1);
	329	exception_type = PyExc_NameError;
	330	Py_INCREF(exception_type);
	331	exception_value = UNSTREAM_STRING( &constant_bin[ 0 ], 35, 0 );
	332	exception_tb = NULL;
	333	NORMALIZE_EXCEPTION( &exception_type, &exception_value, &exception_tb );
	334	CHAIN_EXCEPTION( exception_value );
	335
	336	exception_lineno = 32;
	337	type_description_1 = "o";
	338	goto frame_exception_exit_1;
	339	}
	340
	341	tmp_set_element_1 = tmp_mvar_value_6;
	342	tmp_res = PySet_Add( tmp_assign_source_1, tmp_set_element_1 );
	343	if ( tmp_res != 0 )
	344	{
	345	assert(ERROR_OCCURRED());
	346
	347	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	348	Py_DECREF(tmp_assign_source_1);
	349
	350	exception_lineno = 27;
	351	type_description_1 = "o";
	352	goto frame_exception_exit_1;
	353	}
	354	assert(var_l == NULL);
	355	var_l = tmp_assign_source_1;
	356	}		167	}
	357			168
	358	#if 0		169	#if 0
	359	RESTORE_FRAME_EXCEPTION(frame_5dffb30739a863aa101fa6d6a1a4b0c3);		170	RESTORE_FRAME_EXCEPTION(frame_5dffb30739a863aa101fa6d6a1a4b0c3);
	360	#endif		171	#endif
	379			190
	380	// Attachs locals to frame if any.		191	// Attachs locals to frame if any.
	381	Nuitka_Frame_AttachLocals(		192	Nuitka_Frame_AttachLocals(
	382	(struct Nuitka_FrameObject *)frame_5dffb30739a863aa101fa6d6a1a4b0c3,		193	(struct Nuitka_FrameObject *)frame_5dffb30739a863aa101fa6d6a1a4b0c3,
	383	type_description_1,		194	type_description_1,
n	384	var_l	n	195	NULL
	385	);		196	);
	386			197
	387			198
	388	// Release cached frame.		199	// Release cached frame.
	389	if (frame_5dffb30739a863aa101fa6d6a1a4b0c3 == cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3) {		200	if (frame_5dffb30739a863aa101fa6d6a1a4b0c3 == cache_frame_5dffb30739a863aa101fa6d6a1a4b0c3) {
	395			206
	396	// Put the previous frame back on top.		207	// Put the previous frame back on top.
	397	popFrameStack();		208	popFrameStack();
	398			209
	399	// Return the error.		210	// Return the error.
n	400	goto try_except_handler_1;	n	211	goto function_exception_exit;
	401			212
	402	frame_no_exception_1:;		213	frame_no_exception_1:;
n	403	CHECK_OBJECT(var_l);	n	214	tmp_return_value = const_int_pos_1;
	404	tmp_return_value = var_l;
	405	Py_INCREF(tmp_return_value);		215	Py_INCREF(tmp_return_value);
n	406	goto try_return_handler_1;	n
	407	// tried codes exits in all cases
	408	NUITKA_CANNOT_GET_HERE(__main__$$$function_1_calledRepeatedly);
	409	return NULL;
	410	// Return handler code:
	411	try_return_handler_1:;
	412	CHECK_OBJECT((PyObject *)var_l);
	413	Py_DECREF(var_l);
	414	var_l = NULL;
	415
	416	goto function_return_exit;		216	goto function_return_exit;
t	417	// Exception handler code:	t
	418	try_except_handler_1:;
	419	exception_keeper_type_1 = exception_type;
	420	exception_keeper_value_1 = exception_value;
	421	exception_keeper_tb_1 = exception_tb;
	422	exception_keeper_lineno_1 = exception_lineno;
	423	exception_type = NULL;
	424	exception_value = NULL;
	425	exception_tb = NULL;
	426	exception_lineno = 0;
	427
	428	// Re-raise.
	429	exception_type = exception_keeper_type_1;
	430	exception_value = exception_keeper_value_1;
	431	exception_tb = exception_keeper_tb_1;
	432	exception_lineno = exception_keeper_lineno_1;
	433
	434	goto function_exception_exit;
	435	// End of try:
	436			217
	437	// Return statement must have exited already.		218	// Return statement must have exited already.
	438	NUITKA_CANNOT_GET_HERE(__main__$$$function_1_calledRepeatedly);		219	NUITKA_CANNOT_GET_HERE(__main__$$$function_1_calledRepeatedly);
	439	return NULL;		220	return NULL;
	440			221