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import py
from rpython.rtyper.llannotation import SomePtr
from rpython.rtyper.lltypesystem import lltype, llmemory
from rpython.rtyper.test.tool import BaseRtypingTest
from rpython.rtyper.rvirtualizable import replace_force_virtualizable_with_call
from rpython.rlib.jit import hint
from rpython.flowspace.model import summary
from rpython.rtyper.llinterp import LLInterpreter
from rpython.rtyper.rclass import IR_IMMUTABLE, IR_IMMUTABLE_ARRAY
from rpython.conftest import option
class V(object):
_virtualizable_ = ['v']
v = -12
w = -62
def __init__(self, v):
self.v = v
self.w = v+1
class SubclassV(V):
pass
class VArray(object):
_virtualizable_ = ['lst[*]']
def __init__(self, lst):
self.lst = lst
class B(object):
_virtualizable_ = ['v0']
x = "XX"
def __init__(self, v0):
self.v0 = v0
def get_force_virtualizable_flags(graph):
res = []
for block, op in graph.iterblockops():
if op.opname == 'jit_force_virtualizable':
res.append(op.args[-1].value)
return res
class TestVirtualizable(BaseRtypingTest):
prefix = 'inst_'
GETFIELD = 'getfield'
SETFIELD = 'setfield'
def gettype(self, v):
return v.concretetype.TO
def test_generate_force_virtualizable(self):
def fn(n):
vinst = V(n)
return vinst.v
_, _, graph = self.gengraph(fn, [int])
block = graph.startblock
op_promote = block.operations[-2]
op_getfield = block.operations[-1]
assert op_getfield.opname == 'getfield'
v_inst = op_getfield.args[0]
assert op_promote.opname == 'jit_force_virtualizable'
assert op_promote.args[0] is v_inst
assert op_promote.args[-1].value == {}
def test_generate_force_virtualizable_subclass(self):
def fn(n):
V(n) # to attach v to V
vinst = SubclassV(n)
return vinst.v
_, _, graph = self.gengraph(fn, [int])
block = graph.startblock
op_promote = block.operations[-2]
op_getfield = block.operations[-1]
assert op_getfield.opname == 'getfield'
v_inst = op_getfield.args[0]
assert op_promote.opname == 'jit_force_virtualizable'
assert op_promote.args[0] is v_inst
assert op_promote.args[-1].value == {}
def test_no_force_virtualizable_for_other_fields(self):
def fn(n):
vinst = V(n)
return vinst.w
_, _, graph = self.gengraph(fn, [int])
block = graph.startblock
op_getfield = block.operations[-1]
op_call = block.operations[-2]
assert op_getfield.opname == 'getfield'
assert op_call.opname == 'direct_call' # to V.__init__
def test_generate_force_virtualizable_array(self):
def fn(n):
vinst = VArray([n, n+1])
return vinst.lst[1]
_, _, graph = self.gengraph(fn, [int])
block = graph.startblock
op_promote = block.operations[-3]
op_getfield = block.operations[-2]
op_getarrayitem = block.operations[-1]
assert op_getarrayitem.opname == 'direct_call' # to ll_getitem_xxx
assert op_getfield.opname == 'getfield'
v_inst = op_getfield.args[0]
assert op_promote.opname == 'jit_force_virtualizable'
assert op_promote.args[0] is v_inst
assert op_promote.args[-1].value == {}
def test_accessor(self):
class Base(object):
pass
class V(Base):
_virtualizable_ = ['v1', 'v2[*]']
class W(V):
pass
#
def fn1(n):
Base().base1 = 42
V().v1 = 43
V().v2 = ['x', 'y']
W().w1 = 44
return V()
_, _, graph = self.gengraph(fn1, [int])
v_inst = graph.getreturnvar()
TYPE = self.gettype(v_inst)
accessor = TYPE._hints['virtualizable_accessor']
assert accessor.TYPE == TYPE
assert accessor.fields == {self.prefix + 'v1': IR_IMMUTABLE,
self.prefix + 'v2': IR_IMMUTABLE_ARRAY}
#
def fn2(n):
Base().base1 = 42
V().v1 = 43
V().v2 = ['x', 'y']
W().w1 = 44
return W()
_, _, graph = self.gengraph(fn2, [int])
w_inst = graph.getreturnvar()
TYPE = self.gettype(w_inst)
assert 'virtualizable_accessor' not in TYPE._hints
def replace_force_virtualizable(self, rtyper, graphs):
from rpython.annotator import model as annmodel
from rpython.rtyper.annlowlevel import MixLevelHelperAnnotator
graph = graphs[0]
for block, op in graph.iterblockops():
if op.opname == 'jit_force_virtualizable':
v_inst_ll_type = op.args[0].concretetype
break
def mycall(vinst_ll):
if vinst_ll.vable_token:
raise ValueError
annhelper = MixLevelHelperAnnotator(rtyper)
s_vinst = SomePtr(v_inst_ll_type)
funcptr = annhelper.delayedfunction(mycall, [s_vinst], annmodel.s_None)
annhelper.finish()
replace_force_virtualizable_with_call(graphs, v_inst_ll_type, funcptr)
return funcptr
def test_replace_force_virtualizable_with_call(self):
def fn(n):
vinst = V(n)
return vinst.v
_, rtyper, graph = self.gengraph(fn, [int])
block = graph.startblock
op_getfield = block.operations[-1]
assert op_getfield.opname == 'getfield'
funcptr = self.replace_force_virtualizable(rtyper, [graph])
if getattr(option, 'view', False):
graph.show()
op_promote = block.operations[-2]
op_getfield = block.operations[-1]
assert op_getfield.opname == 'getfield'
assert op_promote.opname == 'direct_call'
assert op_promote.args[0].value == funcptr
assert op_promote.args[1] == op_getfield.args[0]
#
interp = LLInterpreter(rtyper)
res = interp.eval_graph(graph, [61])
assert res == 61
def test_access_directly(self):
def g(b):
b.v0 += 1
return b.v0
def f(n):
b = B(n)
b = hint(b, access_directly=True)
return g(b)
t, typer, graph = self.gengraph(f, [int])
g_graph = t._graphof(g)
expected = [{'access_directly': True}] * 3
assert get_force_virtualizable_flags(g_graph) == expected
self.replace_force_virtualizable(typer, [g_graph])
assert summary(g_graph) == {self.GETFIELD: 2, self.SETFIELD: 1, 'int_add': 1}
res = self.interpret(f, [23])
assert res == 24
def test_access_directly_exception(self):
def g(b):
return b.v0
def f(n):
b = B(n)
b = hint(b, access_directly=True)
if not b.v0:
raise Exception
return g(b)
t, typer, graph = self.gengraph(f, [int])
f_graph = t._graphof(f)
g_graph = t._graphof(g)
self.replace_force_virtualizable(typer, [f_graph, g_graph])
t.checkgraphs()
res = self.interpret(f, [23])
assert res == 23
def test_access_directly_specialized(self):
def g(b):
return b.v0
def f(n):
b = B(n)
x = g(b)
y = g(hint(b, access_directly=True))
return x + y
t, typer, graph = self.gengraph(f, [int])
desc = typer.annotator.bookkeeper.getdesc(g)
g_graphs = desc._cache.items()
assert len(g_graphs) == 2
g_graphs.sort()
assert g_graphs[0][0] is None
assert get_force_virtualizable_flags(g_graphs[0][1]) == [{}]
expected = [{'access_directly': True}]
assert get_force_virtualizable_flags(g_graphs[1][1]) == expected
self.replace_force_virtualizable(typer, [g_graphs[0][1],
g_graphs[1][1]])
assert summary(g_graphs[0][1]) == {'direct_call': 1, self.GETFIELD: 1}
assert summary(g_graphs[1][1]) == {self.GETFIELD: 1}
res = self.interpret(f, [23])
assert res == 46
def test_access_directly_escape(self):
class Global:
pass
glob = Global()
def g(b):
glob.b = b
def h(b):
return b.v0
def f(n):
b = B(n)
g(b)
g(hint(b, access_directly=True))
return h(glob.b)
t, typer, graph = self.gengraph(f, [int])
desc = typer.annotator.bookkeeper.getdesc(g)
g_graphs = desc._cache.items()
assert len(g_graphs) == 2
g_graphs.sort()
assert g_graphs[0][0] is None
assert summary(g_graphs[0][1]) == {self.SETFIELD: 1}
assert summary(g_graphs[1][1]) == {self.SETFIELD: 1}
h_graph = t._graphof(h)
assert summary(h_graph) == {'jit_force_virtualizable': 1,
self.GETFIELD: 1}
assert get_force_virtualizable_flags(h_graph) == [{}]
res = self.interpret(f, [23])
assert res == 23
def test_access_directly_method(self):
class A:
_virtualizable_ = ['v0']
def __init__(self, v):
self.v0 = v
def meth1(self, x):
return self.g(x+1)
def g(self, y):
return self.v0 * y
def f(n):
a = A(n)
a = hint(a, access_directly=True)
return a.meth1(100)
t, typer, graph = self.gengraph(f, [int])
g_graph = t._graphof(A.g.im_func)
self.replace_force_virtualizable(typer, [g_graph])
assert summary(g_graph) == {self.GETFIELD: 1, 'int_mul': 1}
res = self.interpret(f, [23])
assert res == 2323
def test_access_directly_stop_at_dont_look_inside(self):
from rpython.rlib.jit import dont_look_inside
class A:
_virtualizable_ = ['x']
def h(a):
g(a)
h = dont_look_inside(h)
def g(a):
a.x = 2
h(a)
def f():
a = A()
a = hint(a, access_directly=True)
a.x = 1
g(a)
t, typer, graph = self.gengraph(f, [])
desc = typer.annotator.bookkeeper.getdesc(g)
g_graphs = desc._cache.items()
assert len(g_graphs) == 2
g_graphs.sort()
assert g_graphs[0][0] is None # default
g_graph = g_graphs[0][1]
g_graph_directly = g_graphs[1][1]
f_graph = t._graphof(f)
h_graph = t._graphof(h) # 1 graph!
def get_direct_call_graph(graph):
for block, op in graph.iterblockops():
if op.opname == 'direct_call':
return op.args[0].value._obj.graph
return None
assert get_direct_call_graph(f_graph) is g_graph_directly
assert get_direct_call_graph(g_graph) is h_graph
assert get_direct_call_graph(g_graph_directly) is h_graph
assert get_direct_call_graph(h_graph) is g_graph
def test_simple(self):
def f(v):
vinst = V(v)
return vinst, vinst.v
res = self.interpret(f, [42])
assert res.item1 == 42
res = lltype.normalizeptr(res.item0)
assert res.inst_v == 42
assert res.vable_token == lltype.nullptr(llmemory.GCREF.TO)
|
