def test_virtuals_with_equal_fields(self):
info1 = VirtualStateInfo(ConstInt(42), [1, 2])
value = OptValue(self.nodebox)
classbox = self.cpu.ts.cls_of_box(self.nodebox)
value.make_constant_class(classbox, -1)
knownclass_info = NotVirtualStateInfo(value)
info1.fieldstate = [knownclass_info, knownclass_info]
vstate1 = VirtualState([info1])
assert vstate1.generalization_of(vstate1)
info2 = VirtualStateInfo(ConstInt(42), [1, 2])
unknown_info1 = NotVirtualStateInfo(OptValue(self.nodebox))
info2.fieldstate = [unknown_info1, unknown_info1]
vstate2 = VirtualState([info2])
assert vstate2.generalization_of(vstate2)
assert not vstate1.generalization_of(vstate2)
assert vstate2.generalization_of(vstate1)
info3 = VirtualStateInfo(ConstInt(42), [1, 2])
unknown_info1 = NotVirtualStateInfo(OptValue(self.nodebox))
unknown_info2 = NotVirtualStateInfo(OptValue(self.nodebox))
info3.fieldstate = [unknown_info1, unknown_info2]
vstate3 = VirtualState([info3])
assert vstate3.generalization_of(vstate2)
assert vstate3.generalization_of(vstate1)
assert not vstate2.generalization_of(vstate3)
assert not vstate1.generalization_of(vstate3)
def test_position_generalization(self):
def postest(info1, info2):
info1.position = 0
assert info1.generalization_of(info1, {}, {})
info2.position = 0
assert info1.generalization_of(info2, {}, {})
info2.position = 1
renum = {}
assert info1.generalization_of(info2, renum, {})
assert renum == {0:1}
assert info1.generalization_of(info2, {0:1}, {})
assert info1.generalization_of(info2, {1:1}, {})
bad = {}
assert not info1.generalization_of(info2, {0:0}, bad)
assert info1 in bad and info2 in bad
for BoxType in (BoxInt, BoxFloat, BoxPtr):
info1 = NotVirtualStateInfo(OptValue(BoxType()))
info2 = NotVirtualStateInfo(OptValue(BoxType()))
postest(info1, info2)
info1, info2 = VArrayStateInfo(42), VArrayStateInfo(42)
info1.fieldstate = info2.fieldstate = []
postest(info1, info2)
info1, info2 = VStructStateInfo(42, []), VStructStateInfo(42, [])
info1.fieldstate = info2.fieldstate = []
postest(info1, info2)
info1, info2 = VirtualStateInfo(ConstInt(42), []), VirtualStateInfo(ConstInt(42), [])
info1.fieldstate = info2.fieldstate = []
postest(info1, info2)
def test_known_class(self):
value1 = OptValue(self.nodebox)
classbox = self.cpu.ts.cls_of_box(self.nodebox)
value1.make_constant_class(classbox, -1)
info1 = NotVirtualStateInfo(value1)
info2 = NotVirtualStateInfo(OptValue(self.nodebox))
expected = """
[p0]
guard_nonnull(p0) []
guard_class(p0, ConstClass(node_vtable)) []
"""
self.guards(info1, info2, self.nodebox, expected)
py.test.raises(InvalidLoop, self.guards,
info1, info2, BoxPtr(), expected)
def test_nonvirtual_is_not_array(self):
info1 = VArrayStateInfo(42)
value = OptValue(self.nodebox)
classbox = self.cpu.ts.cls_of_box(self.nodebox)
value.make_constant_class(classbox, -1)
knownclass_info = NotVirtualStateInfo(value)
info1.fieldstate = [knownclass_info, knownclass_info]
vstate1 = VirtualState([info1])
assert vstate1.generalization_of(vstate1)
info2 = NotVirtualStateInfo(value)
vstate2 = VirtualState([info2])
assert vstate2.generalization_of(vstate2)
assert not vstate2.generalization_of(vstate1)
assert not vstate1.generalization_of(vstate2)
def test_intbounds(self):
value1 = OptValue(BoxInt())
value1.intbound.make_ge(IntBound(0, 10))
value1.intbound.make_le(IntBound(20, 30))
info1 = NotVirtualStateInfo(value1)
info2 = NotVirtualStateInfo(OptValue(BoxInt()))
expected = """
[i0]
i1 = int_ge(i0, 0)
guard_true(i1) []
i2 = int_le(i0, 30)
guard_true(i2) []
"""
self.guards(info1, info2, BoxInt(15), expected)
py.test.raises(InvalidLoop, self.guards,
info1, info2, BoxInt(50), expected)
def test_field_matching_generalization(self):
const1 = NotVirtualStateInfo(OptValue(ConstInt(1)))
const2 = NotVirtualStateInfo(OptValue(ConstInt(2)))
const1.position = const2.position = 1
assert not const1.generalization_of(const2, {}, {})
assert not const2.generalization_of(const1, {}, {})
def fldtst(info1, info2):
info1.position = info2.position = 0
info1.fieldstate = [const1]
info2.fieldstate = [const2]
assert not info1.generalization_of(info2, {}, {})
assert not info2.generalization_of(info1, {}, {})
assert info1.generalization_of(info1, {}, {})
assert info2.generalization_of(info2, {}, {})
fldtst(VArrayStateInfo(42), VArrayStateInfo(42))
fldtst(VStructStateInfo(42, [7]), VStructStateInfo(42, [7]))
fldtst(VirtualStateInfo(ConstInt(42), [7]), VirtualStateInfo(ConstInt(42), [7]))
def test_virtuals_with_nonmatching_classes(self):
info1 = VirtualStateInfo(ConstInt(42), [1, 2])
value = OptValue(self.nodebox)
classbox = self.cpu.ts.cls_of_box(self.nodebox)
value.make_constant_class(classbox, -1)
knownclass_info = NotVirtualStateInfo(value)
info1.fieldstate = [knownclass_info, knownclass_info]
vstate1 = VirtualState([info1])
assert vstate1.generalization_of(vstate1)
info2 = VirtualStateInfo(ConstInt(7), [1, 2])
value = OptValue(self.nodebox2)
classbox = self.cpu.ts.cls_of_box(self.nodebox2)
value.make_constant_class(classbox, -1)
knownclass_info = NotVirtualStateInfo(value)
info2.fieldstate = [knownclass_info, knownclass_info]
vstate2 = VirtualState([info2])
assert vstate2.generalization_of(vstate2)
assert not vstate2.generalization_of(vstate1)
assert not vstate1.generalization_of(vstate2)
def test_equal_inputargs(self):
value = OptValue(self.nodebox)
classbox = self.cpu.ts.cls_of_box(self.nodebox)
value.make_constant_class(classbox, -1)
knownclass_info = NotVirtualStateInfo(value)
vstate1 = VirtualState([knownclass_info, knownclass_info])
assert vstate1.generalization_of(vstate1)
unknown_info1 = NotVirtualStateInfo(OptValue(self.nodebox))
vstate2 = VirtualState([unknown_info1, unknown_info1])
assert vstate2.generalization_of(vstate2)
assert not vstate1.generalization_of(vstate2)
assert vstate2.generalization_of(vstate1)
unknown_info1 = NotVirtualStateInfo(OptValue(self.nodebox))
unknown_info2 = NotVirtualStateInfo(OptValue(self.nodebox))
vstate3 = VirtualState([unknown_info1, unknown_info2])
assert vstate3.generalization_of(vstate2)
assert vstate3.generalization_of(vstate1)
assert not vstate2.generalization_of(vstate3)
assert not vstate1.generalization_of(vstate3)
expected = """
[p0]
guard_nonnull(p0) []
guard_class(p0, ConstClass(node_vtable)) []
"""
guards = []
vstate1.generate_guards(vstate2, [self.nodebox, self.nodebox], self.cpu, guards)
self.compare(guards, expected, [self.nodebox])
with py.test.raises(InvalidLoop):
guards = []
vstate1.generate_guards(vstate3, [self.nodebox, self.nodebox],
self.cpu, guards)
with py.test.raises(InvalidLoop):
guards = []
vstate2.generate_guards(vstate3, [self.nodebox, self.nodebox],
self.cpu, guards)
def test_field_matching_generalization(self):
const1 = NotVirtualStateInfo(OptValue(ConstInt(1)))
const2 = NotVirtualStateInfo(OptValue(ConstInt(2)))
const1.position = const2.position = 1
assert not const1.generalization_of(const2, {}, {})
assert not const2.generalization_of(const1, {}, {})
def fldtst(info1, info2):
info1.position = info2.position = 0
info1.fieldstate = [const1]
info2.fieldstate = [const2]
assert not info1.generalization_of(info2, {}, {})
assert not info2.generalization_of(info1, {}, {})
assert info1.generalization_of(info1, {}, {})
assert info2.generalization_of(info2, {}, {})
fldtst(VArrayStateInfo(42), VArrayStateInfo(42))
fldtst(VStructStateInfo(42, [7]), VStructStateInfo(42, [7]))
fldtst(VirtualStateInfo(ConstInt(42), [7]), VirtualStateInfo(ConstInt(42), [7]))
def isgeneral(value1, value2):
info1 = NotVirtualStateInfo(value1)
info1.position = 0
info2 = NotVirtualStateInfo(value2)
info2.position = 0
return info1.generalization_of(info2, {}, {})
def test_known_class_generalization(self):
knownclass1 = OptValue(BoxPtr())
knownclass1.make_constant_class(ConstPtr(self.someptr1), 0)
info1 = NotVirtualStateInfo(knownclass1)
info1.position = 0
knownclass2 = OptValue(BoxPtr())
knownclass2.make_constant_class(ConstPtr(self.someptr1), 0)
info2 = NotVirtualStateInfo(knownclass2)
info2.position = 0
assert info1.generalization_of(info2, {}, {})
assert info2.generalization_of(info1, {}, {})
knownclass3 = OptValue(BoxPtr())
knownclass3.make_constant_class(ConstPtr(self.someptr2), 0)
info3 = NotVirtualStateInfo(knownclass3)
info3.position = 0
assert not info1.generalization_of(info3, {}, {})
assert not info2.generalization_of(info3, {}, {})
assert not info3.generalization_of(info2, {}, {})
assert not info3.generalization_of(info1, {}, {})
def isgeneral(value1, value2):
info1 = NotVirtualStateInfo(value1)
info1.position = 0
info2 = NotVirtualStateInfo(value2)
info2.position = 0
return info1.generalization_of(info2, {}, {})
def test_known_class_generalization(self):
knownclass1 = OptValue(BoxPtr())
knownclass1.make_constant_class(ConstPtr(self.someptr1), 0)
info1 = NotVirtualStateInfo(knownclass1)
info1.position = 0
knownclass2 = OptValue(BoxPtr())
knownclass2.make_constant_class(ConstPtr(self.someptr1), 0)
info2 = NotVirtualStateInfo(knownclass2)
info2.position = 0
assert info1.generalization_of(info2, {}, {})
assert info2.generalization_of(info1, {}, {})
knownclass3 = OptValue(BoxPtr())
knownclass3.make_constant_class(ConstPtr(self.someptr2), 0)
info3 = NotVirtualStateInfo(knownclass3)
info3.position = 0
assert not info1.generalization_of(info3, {}, {})
assert not info2.generalization_of(info3, {}, {})
assert not info3.generalization_of(info2, {}, {})
assert not info3.generalization_of(info1, {}, {})