def test_simple_merge_generalize(self):
S = self.STRUCT
constbox20 = makebox(20)
oldbox = vmalloc(S, constbox20)
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
assert self.match(frozenbox, oldbox, []) # there is no FrozenVar
constbox23 = makebox(23)
newbox = vmalloc(S, constbox23)
# non-exact match: a different constant box in the virtual struct field
assert not self.match(frozenbox, newbox, [constbox23])
# constbox23 is what should be generalized with forcevar()
# in order to get something that is at least as general as
# both oldbox and newbox
jitstate = FakeJITState()
replace_memo = rvalue.copy_memo()
forcedbox = constbox23.forcevar(jitstate, replace_memo, False)
assert not forcedbox.is_constant()
assert jitstate.curbuilder.ops == [
('same_as', (signed_kind, constbox23.genvar), forcedbox.genvar)]
assert replace_memo.boxes == {constbox23: forcedbox}
# change constbox to forcedbox inside newbox
newbox.replace(replace_memo)
assert (newbox.content.op_getfield(jitstate, self.fielddesc) is
forcedbox)
# check that now newbox really generalizes oldbox
newfrozenbox = newbox.freeze(rvalue.freeze_memo())
assert self.match(newfrozenbox, oldbox, [constbox20])
def test_simple_merge_generalize(self):
S = self.STRUCT
constbox20 = makebox(20)
oldbox = vmalloc(S, constbox20)
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
assert self.match(frozenbox, oldbox, []) # there is no FrozenVar
constbox23 = makebox(23)
newbox = vmalloc(S, constbox23)
# non-exact match: a different constant box in the virtual struct field
assert not self.match(frozenbox, newbox, [constbox23])
# constbox23 is what should be generalized with forcevar()
# in order to get something that is at least as general as
# both oldbox and newbox
jitstate = FakeJITState()
replace_memo = rvalue.copy_memo()
forcedbox = constbox23.forcevar(jitstate, replace_memo, False)
assert not forcedbox.is_constant()
assert jitstate.curbuilder.ops == [
('same_as', (signed_kind, constbox23.genvar), forcedbox.genvar)
]
assert replace_memo.boxes == {constbox23: forcedbox}
# change constbox to forcedbox inside newbox
newbox.replace(replace_memo)
assert (newbox.content.op_getfield(jitstate, self.fielddesc) is
forcedbox)
# check that now newbox really generalizes oldbox
newfrozenbox = newbox.freeze(rvalue.freeze_memo())
assert self.match(newfrozenbox, oldbox, [constbox20])
def test_nested_structure_no_vars(self):
NESTED = self.NESTEDSTRUCT
constbox30 = makebox(30)
constbox20 = makebox(20)
oldbox = vmalloc(NESTED, constbox20, vmalloc(NESTED, constbox30))
jitstate = FakeJITState()
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
assert self.match(frozenbox, oldbox, []) # there is no FrozenVar
def test_nested_structure_no_vars(self):
NESTED = self.NESTEDSTRUCT
constbox30 = makebox(30)
constbox20 = makebox(20)
oldbox = vmalloc(NESTED, constbox20, vmalloc(NESTED, constbox30))
jitstate = FakeJITState()
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
assert self.match(frozenbox, oldbox, []) # there is no FrozenVar
def test_simple_merge(self):
V42 = FakeGenVar(42)
oldbox = vmalloc(self.STRUCT, makebox(V42))
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
jitstate = FakeJITState()
fieldbox = oldbox.content.op_getfield(jitstate, self.fielddesc)
assert self.match(frozenbox, oldbox, [fieldbox])
constbox23 = makebox(23)
newbox = vmalloc(self.STRUCT, constbox23)
# check that frozenbox also matches newbox exactly
assert self.match(frozenbox, newbox, [constbox23])
def test_simple_merge(self):
V42 = FakeGenVar(42)
oldbox = vmalloc(self.STRUCT, makebox(V42))
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
jitstate = FakeJITState()
fieldbox = oldbox.content.op_getfield(jitstate, self.fielddesc)
assert self.match(frozenbox, oldbox, [fieldbox])
constbox23 = makebox(23)
newbox = vmalloc(self.STRUCT, constbox23)
# check that frozenbox also matches newbox exactly
assert self.match(frozenbox, newbox, [constbox23])
def test_nested_structures_variables(self):
NESTED = self.NESTEDSTRUCT
varbox42 = makebox(FakeGenVar(42))
constbox20 = makebox(20)
oldbox = vmalloc(NESTED, constbox20, vmalloc(NESTED, varbox42))
jitstate = FakeJITState()
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
assert self.match(frozenbox, oldbox, [varbox42])
constbox30 = makebox(30)
newbox = vmalloc(NESTED, constbox20, vmalloc(NESTED, constbox30))
# check that frozenbox also matches newbox exactly
assert self.match(frozenbox, newbox, [constbox30])
def test_nested_structures_variables(self):
NESTED = self.NESTEDSTRUCT
varbox42 = makebox(FakeGenVar(42))
constbox20 = makebox(20)
oldbox = vmalloc(NESTED, constbox20, vmalloc(NESTED, varbox42))
jitstate = FakeJITState()
frozenbox = oldbox.freeze(rvalue.freeze_memo())
# check that frozenbox matches oldbox exactly
assert self.match(frozenbox, oldbox, [varbox42])
constbox30 = makebox(30)
newbox = vmalloc(NESTED, constbox20, vmalloc(NESTED, constbox30))
# check that frozenbox also matches newbox exactly
assert self.match(frozenbox, newbox, [constbox30])