Construct OperationAttributeLookup

Performance Diagrams

Source Code with Construct

module_value1 = list()
module_value2 = 3000

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

    local_value = module_value1

    s = module_value1
    s.append
# construct_begin
    s.append
# construct_end
    s.append

    return s, local_value

import itertools
for x in itertools.repeat(None, 25000):
    calledRepeatedly()

print("OK.")

Source Code without Construct

module_value1 = list()
module_value2 = 3000

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

    local_value = module_value1

    s = module_value1
    s.append
# construct_begin


    s.append

    return s, local_value

import itertools
for x in itertools.repeat(None, 25000):
    calledRepeatedly()

print("OK.")

Context Diff of Source Code

	Construct			Baseline
	28	local_value = module_value1		28	local_value = module_value1
	29			29
	30	s = module_value1		30	s = module_value1
	31	s.append		31	s.append
	32	# construct_begin		32	# construct_begin
t	33	s.append	t	33
	34	# construct_end		34
	35	s.append		35	s.append
	36			36
	37	return s, local_value		37	return s, local_value
	38			38
	39	import itertools		39	import itertools

Context Diff of Generated Code

	Construct			Baseline
	266	assert(ERROR_OCCURRED());		266	assert(ERROR_OCCURRED());
	267			267
	268	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);		268	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	269			269
	270			270
n	271	exception_lineno = 33;	n
	272	type_description_1 = "oo";
	273	goto frame_exception_exit_1;
	274	}
	275	Py_DECREF(tmp_attribute_value_2);
	276	}
	277	{
	278	PyObject *tmp_source_name_3;
	279	PyObject *tmp_attribute_value_3;
	280	CHECK_OBJECT(var_s);
	281	tmp_source_name_3 = var_s;
	282	tmp_attribute_value_3 = LOOKUP_ATTRIBUTE( tmp_source_name_3, const_str_plain_append );
	283	if ( tmp_attribute_value_3 == NULL )
	284	{
	285	assert(ERROR_OCCURRED());
	286
	287	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	288
	289
	290	exception_lineno = 35;		271	exception_lineno = 35;
	291	type_description_1 = "oo";		272	type_description_1 = "oo";
	292	goto frame_exception_exit_1;		273	goto frame_exception_exit_1;
	293	}		274	}
t	294	Py_DECREF(tmp_attribute_value_3);	t	275	Py_DECREF(tmp_attribute_value_2);
	295	}		276	}
	296			277
	297	#if 0		278	#if 0
	298	RESTORE_FRAME_EXCEPTION(frame_eb57b373bee2e1ca555732dac68582fd);		279	RESTORE_FRAME_EXCEPTION(frame_eb57b373bee2e1ca555732dac68582fd);
	299	#endif		280	#endif