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
	260	assert(ERROR_OCCURRED());		260	assert(ERROR_OCCURRED());
	261			261
	262	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);		262	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	263			263
	264			264
n	265	exception_lineno = 33;	n
	266	type_description_1 = "oo";
	267	goto frame_exception_exit_1;
	268	}
	269	Py_DECREF(tmp_attribute_value_2);
	270	}
	271	{
	272	PyObject *tmp_source_name_3;
	273	PyObject *tmp_attribute_value_3;
	274	CHECK_OBJECT(var_s);
	275	tmp_source_name_3 = var_s;
	276	tmp_attribute_value_3 = LOOKUP_ATTRIBUTE(tmp_source_name_3, const_str_plain_append);
	277	if (tmp_attribute_value_3 == NULL) {
	278	assert(ERROR_OCCURRED());
	279
	280	FETCH_ERROR_OCCURRED(&exception_type, &exception_value, &exception_tb);
	281
	282
	283	exception_lineno = 35;		265	exception_lineno = 35;
	284	type_description_1 = "oo";		266	type_description_1 = "oo";
	285	goto frame_exception_exit_1;		267	goto frame_exception_exit_1;
	286	}		268	}
t	287	Py_DECREF(tmp_attribute_value_3);	t	269	Py_DECREF(tmp_attribute_value_2);
	288	}		270	}
	289			271
	290	#if 0		272	#if 0
	291	RESTORE_FRAME_EXCEPTION(frame_150310f8cade1dd679e58d4086d856d3);		273	RESTORE_FRAME_EXCEPTION(frame_150310f8cade1dd679e58d4086d856d3);
	292	#endif		274	#endif