def test_get_size_descr():
c0 = GcCache(False)
c1 = GcCache(True)
T = lltype.GcStruct('T')
S = lltype.GcStruct('S', ('x', lltype.Char),
('y', lltype.Ptr(T)))
descr_s = get_size_descr(c0, S)
descr_t = get_size_descr(c0, T)
assert descr_s.size == symbolic.get_size(S, False)
assert descr_t.size == symbolic.get_size(T, False)
assert descr_s.count_fields_if_immutable() == -1
assert descr_t.count_fields_if_immutable() == -1
assert descr_t.gc_fielddescrs == []
assert len(descr_s.gc_fielddescrs) == 1
assert descr_s == get_size_descr(c0, S)
assert descr_s != get_size_descr(c1, S)
#
descr_s = get_size_descr(c1, S)
assert isinstance(descr_s.size, Symbolic)
assert descr_s.count_fields_if_immutable() == -1
PARENT = lltype.Struct('P', ('x', lltype.Ptr(T)))
STRUCT = lltype.GcStruct('S', ('parent', PARENT), ('y', lltype.Ptr(T)))
descr_struct = get_size_descr(c0, STRUCT)
assert len(descr_struct.gc_fielddescrs) == 2
def test_get_size_descr():
c0 = GcCache(False)
c1 = GcCache(True)
T = lltype.GcStruct('T')
S = lltype.GcStruct('S', ('x', lltype.Char),
('y', lltype.Ptr(T)))
descr_s = get_size_descr(c0, S)
descr_t = get_size_descr(c0, T)
assert descr_s.size == symbolic.get_size(S, False)
assert descr_t.size == symbolic.get_size(T, False)
assert descr_s.is_immutable() == False
assert descr_t.is_immutable() == False
assert descr_t.gc_fielddescrs == []
assert len(descr_s.gc_fielddescrs) == 1
assert descr_s == get_size_descr(c0, S)
assert descr_s != get_size_descr(c1, S)
#
descr_s = get_size_descr(c1, S)
assert isinstance(descr_s.size, Symbolic)
assert descr_s.is_immutable() == False
PARENT = lltype.Struct('P', ('x', lltype.Ptr(T)))
STRUCT = lltype.GcStruct('S', ('parent', PARENT), ('y', lltype.Ptr(T)))
descr_struct = get_size_descr(c0, STRUCT)
assert len(descr_struct.gc_fielddescrs) == 2
def get_call_descr(gccache, ARGS, RESULT, extrainfo=None):
arg_classes = map(map_type_to_argclass, ARGS)
arg_classes = ''.join(arg_classes)
result_type = map_type_to_argclass(RESULT, accept_void=True)
RESULT_ERASED = RESULT
if RESULT is lltype.Void:
result_size = 0
result_signed = False
else:
if isinstance(RESULT, lltype.Ptr):
# avoid too many CallDescrs
if result_type == 'r':
RESULT_ERASED = llmemory.GCREF
else:
RESULT_ERASED = llmemory.Address
result_size = symbolic.get_size(RESULT_ERASED,
gccache.translate_support_code)
result_signed = get_type_flag(RESULT) == FLAG_SIGNED
key = (arg_classes, result_type, result_signed, RESULT_ERASED, extrainfo)
cache = gccache._cache_call
try:
calldescr = cache[key]
except KeyError:
calldescr = CallDescr(arg_classes, result_type, result_signed,
result_size, extrainfo)
calldescr.create_call_stub(gccache.rtyper, RESULT_ERASED)
cache[key] = calldescr
assert repr(calldescr.result_size) == repr(result_size)
return calldescr
def get_call_descr(gccache, ARGS, RESULT, extrainfo=None):
arg_classes = map(map_type_to_argclass, ARGS)
arg_classes = ''.join(arg_classes)
result_type = map_type_to_argclass(RESULT, accept_void=True)
RESULT_ERASED = RESULT
if RESULT is lltype.Void:
result_size = 0
result_signed = False
else:
if isinstance(RESULT, lltype.Ptr):
# avoid too many CallDescrs
if result_type == 'r':
RESULT_ERASED = llmemory.GCREF
else:
RESULT_ERASED = llmemory.Address
result_size = symbolic.get_size(RESULT_ERASED,
gccache.translate_support_code)
result_signed = get_type_flag(RESULT) == FLAG_SIGNED
key = (arg_classes, result_type, result_signed, RESULT_ERASED, extrainfo)
cache = gccache._cache_call
try:
calldescr = cache[key]
except KeyError:
calldescr = CallDescr(arg_classes, result_type, result_signed,
result_size, extrainfo)
calldescr.create_call_stub(gccache.rtyper, RESULT_ERASED)
cache[key] = calldescr
assert repr(calldescr.result_size) == repr(result_size)
return calldescr
def get_size_descr(gccache,
STRUCT,
vtable=lltype.nullptr(rclass.OBJECT_VTABLE)):
cache = gccache._cache_size
assert not isinstance(vtable, bool)
try:
return cache[STRUCT]
except KeyError:
size = symbolic.get_size(STRUCT, gccache.translate_support_code)
immutable_flag = heaptracker.is_immutable_struct(STRUCT)
if vtable:
assert heaptracker.has_gcstruct_a_vtable(STRUCT)
else:
assert not heaptracker.has_gcstruct_a_vtable(STRUCT)
sizedescr = SizeDescr(size,
vtable=vtable,
immutable_flag=immutable_flag)
gccache.init_size_descr(STRUCT, sizedescr)
cache[STRUCT] = sizedescr
# XXX do we really need gc_fielddescrs if we also have
# all_fielddescrs and can ask is_pointer_field() on them?
gc_fielddescrs = heaptracker.gc_fielddescrs(gccache, STRUCT)
sizedescr.gc_fielddescrs = gc_fielddescrs
all_fielddescrs = heaptracker.all_fielddescrs(gccache, STRUCT)
sizedescr.all_fielddescrs = all_fielddescrs
return sizedescr
def test_get_size_descr():
c0 = GcCache(False)
c1 = GcCache(True)
T = lltype.GcStruct('T')
S = lltype.GcStruct('S', ('x', lltype.Char),
('y', lltype.Ptr(T)))
descr_s = get_size_descr(c0, S)
descr_t = get_size_descr(c0, T)
assert descr_s.size == symbolic.get_size(S, False)
assert descr_t.size == symbolic.get_size(T, False)
assert descr_s.count_fields_if_immutable() == -1
assert descr_t.count_fields_if_immutable() == -1
assert descr_s == get_size_descr(c0, S)
assert descr_s != get_size_descr(c1, S)
#
descr_s = get_size_descr(c1, S)
assert isinstance(descr_s.size, Symbolic)
assert descr_s.count_fields_if_immutable() == -1
def get_field_arraylen_descr(gccache, ARRAY_OR_STRUCT):
cache = gccache._cache_arraylen
try:
return cache[ARRAY_OR_STRUCT]
except KeyError:
tsc = gccache.translate_support_code
(_, _, ofs) = symbolic.get_array_token(ARRAY_OR_STRUCT, tsc)
size = symbolic.get_size(lltype.Signed, tsc)
result = FieldDescr("len", ofs, size, get_type_flag(lltype.Signed))
cache[ARRAY_OR_STRUCT] = result
return result
def get_field_arraylen_descr(gccache, ARRAY_OR_STRUCT):
cache = gccache._cache_arraylen
try:
return cache[ARRAY_OR_STRUCT]
except KeyError:
tsc = gccache.translate_support_code
(_, _, ofs) = symbolic.get_array_token(ARRAY_OR_STRUCT, tsc)
size = symbolic.get_size(lltype.Signed, tsc)
result = FieldDescr("len", ofs, size, get_type_flag(lltype.Signed))
cache[ARRAY_OR_STRUCT] = result
return result
def test_repr_of_descr():
def repr_of_descr(descr):
s = descr.repr_of_descr()
assert ',' not in s # makes the life easier for pypy.tool.jitlogparser
return s
c0 = GcCache(False)
T = lltype.GcStruct('T')
S = lltype.GcStruct('S', ('x', lltype.Char),
('y', lltype.Ptr(T)),
('z', lltype.Ptr(T)))
descr1 = get_size_descr(c0, S)
s = symbolic.get_size(S, False)
assert repr_of_descr(descr1) == '<SizeDescr %d>' % s
#
descr2 = get_field_descr(c0, S, 'y')
o, _ = symbolic.get_field_token(S, 'y', False)
assert repr_of_descr(descr2) == '<FieldP S.y %d>' % o
#
descr2i = get_field_descr(c0, S, 'x')
o, _ = symbolic.get_field_token(S, 'x', False)
assert repr_of_descr(descr2i) == '<FieldU S.x %d>' % o
#
descr3 = get_array_descr(c0, lltype.GcArray(lltype.Ptr(S)))
o = symbolic.get_size(lltype.Ptr(S), False)
assert repr_of_descr(descr3) == '<ArrayP %d>' % o
#
descr3i = get_array_descr(c0, lltype.GcArray(lltype.Char))
assert repr_of_descr(descr3i) == '<ArrayU 1>'
#
descr4 = get_call_descr(c0, [lltype.Char, lltype.Ptr(S)], lltype.Ptr(S))
assert repr_of_descr(descr4) == '<Callr %d ir>' % o
#
descr4i = get_call_descr(c0, [lltype.Char, lltype.Ptr(S)], lltype.Char)
assert repr_of_descr(descr4i) == '<Calli 1 ir>'
#
descr4f = get_call_descr(c0, [lltype.Char, lltype.Ptr(S)], lltype.Float)
assert repr_of_descr(descr4f) == '<Callf 8 ir>'
#
descr5f = get_call_descr(c0, [lltype.Char], lltype.SingleFloat)
assert repr_of_descr(descr5f) == '<CallS 4 i>'
def test_repr_of_descr():
def repr_of_descr(descr):
s = descr.repr_of_descr()
assert ',' not in s # makes the life easier for pypy.tool.jitlogparser
return s
c0 = GcCache(False)
T = lltype.GcStruct('T')
S = lltype.GcStruct('S', ('x', lltype.Char),
('y', lltype.Ptr(T)),
('z', lltype.Ptr(T)))
descr1 = get_size_descr(c0, S)
s = symbolic.get_size(S, False)
assert repr_of_descr(descr1) == '<SizeDescr %d>' % s
#
descr2 = get_field_descr(c0, S, 'y')
o, _ = symbolic.get_field_token(S, 'y', False)
assert repr_of_descr(descr2) == '<FieldP S.y %d>' % o
#
descr2i = get_field_descr(c0, S, 'x')
o, _ = symbolic.get_field_token(S, 'x', False)
assert repr_of_descr(descr2i) == '<FieldU S.x %d>' % o
#
descr3 = get_array_descr(c0, lltype.GcArray(lltype.Ptr(S)))
o = symbolic.get_size(lltype.Ptr(S), False)
assert repr_of_descr(descr3) == '<ArrayP %d>' % o
#
descr3i = get_array_descr(c0, lltype.GcArray(lltype.Char))
assert repr_of_descr(descr3i) == '<ArrayU 1>'
#
descr4 = get_call_descr(c0, [lltype.Char, lltype.Ptr(S)], lltype.Ptr(S))
assert repr_of_descr(descr4) == '<Callr %d ir>' % o
#
descr4i = get_call_descr(c0, [lltype.Char, lltype.Ptr(S)], lltype.Char)
assert repr_of_descr(descr4i) == '<Calli 1 ir>'
#
descr4f = get_call_descr(c0, [lltype.Char, lltype.Ptr(S)], lltype.Float)
assert repr_of_descr(descr4f) == '<Callf 8 ir>'
#
descr5f = get_call_descr(c0, [lltype.Char], lltype.SingleFloat)
assert repr_of_descr(descr5f) == '<CallS 4 i>'
def get_size_descr(gccache, STRUCT):
cache = gccache._cache_size
try:
return cache[STRUCT]
except KeyError:
size = symbolic.get_size(STRUCT, gccache.translate_support_code)
count_fields_if_immut = heaptracker.count_fields_if_immutable(STRUCT)
if heaptracker.has_gcstruct_a_vtable(STRUCT):
sizedescr = SizeDescrWithVTable(size, count_fields_if_immut)
else:
sizedescr = SizeDescr(size, count_fields_if_immut)
gccache.init_size_descr(STRUCT, sizedescr)
cache[STRUCT] = sizedescr
return sizedescr
def get_size_descr(gccache, STRUCT):
cache = gccache._cache_size
try:
return cache[STRUCT]
except KeyError:
size = symbolic.get_size(STRUCT, gccache.translate_support_code)
count_fields_if_immut = heaptracker.count_fields_if_immutable(STRUCT)
gc_fielddescrs = heaptracker.gc_fielddescrs(gccache, STRUCT)
if heaptracker.has_gcstruct_a_vtable(STRUCT):
sizedescr = SizeDescrWithVTable(size, count_fields_if_immut,
gc_fielddescrs)
else:
sizedescr = SizeDescr(size, count_fields_if_immut,
gc_fielddescrs)
gccache.init_size_descr(STRUCT, sizedescr)
cache[STRUCT] = sizedescr
return sizedescr
def get_size_descr(gccache, STRUCT, vtable=lltype.nullptr(rclass.OBJECT_VTABLE)):
cache = gccache._cache_size
assert not isinstance(vtable, bool)
try:
return cache[STRUCT]
except KeyError:
size = symbolic.get_size(STRUCT, gccache.translate_support_code)
immutable_flag = heaptracker.is_immutable_struct(STRUCT)
if vtable:
assert heaptracker.has_gcstruct_a_vtable(STRUCT)
else:
assert not heaptracker.has_gcstruct_a_vtable(STRUCT)
sizedescr = SizeDescr(size, vtable=vtable,
immutable_flag=immutable_flag)
gccache.init_size_descr(STRUCT, sizedescr)
cache[STRUCT] = sizedescr
# XXX do we really need gc_fielddescrs if we also have
# all_fielddescrs and can ask is_pointer_field() on them?
gc_fielddescrs = heaptracker.gc_fielddescrs(gccache, STRUCT)
sizedescr.gc_fielddescrs = gc_fielddescrs
all_fielddescrs = heaptracker.all_fielddescrs(gccache, STRUCT)
sizedescr.all_fielddescrs = all_fielddescrs
return sizedescr