def consider_struct(TYPE, fieldname):
if fieldType(TYPE, fieldname) is lltype.Void:
return False
if not isinstance(TYPE, lltype.GcStruct): # can be a non-GC-struct
return False
if fieldname == "typeptr" and TYPE is OBJECT:
# filter out the typeptr, because
# a) it is optimized in different ways
# b) it might not be there in C if removetypeptr is specified
return False
return True
def consider_struct(TYPE, fieldname):
if fieldType(TYPE, fieldname) is lltype.Void:
return False
if not isinstance(TYPE, lltype.GcStruct): # can be a non-GC-struct
return False
if fieldname == "typeptr" and TYPE is OBJECT:
# filter out the typeptr, because
# a) it is optimized in different ways
# b) it might not be there in C if removetypeptr is specified
return False
return True
def __init__(self, warmrunnerdesc, VTYPEPTR):
self.warmrunnerdesc = warmrunnerdesc
cpu = warmrunnerdesc.cpu
self.cpu = cpu
self.BoxArray = cpu.ts.BoxRef
#
while 'virtualizable2_accessor' not in deref(VTYPEPTR)._hints:
VTYPEPTR = cpu.ts.get_superclass(VTYPEPTR)
self.VTYPEPTR = VTYPEPTR
self.VTYPE = VTYPE = deref(VTYPEPTR)
self.vable_token_descr = cpu.fielddescrof(VTYPE, 'vable_token')
#
accessor = VTYPE._hints['virtualizable2_accessor']
all_fields = accessor.fields
static_fields = []
array_fields = []
for name, tp in all_fields.iteritems():
if tp == IR_IMMUTABLE_ARRAY:
array_fields.append(name)
elif tp == IR_IMMUTABLE:
static_fields.append(name)
else:
raise Exception("unknown type: %s" % tp)
self.static_fields = static_fields
self.array_fields = array_fields
#
FIELDTYPES = [fieldType(VTYPE, name) for name in static_fields]
ARRAYITEMTYPES = []
for name in array_fields:
ARRAYPTR = fieldType(VTYPE, name)
ARRAY = deref(ARRAYPTR)
assert isinstance(ARRAYPTR, lltype.Ptr)
assert isinstance(ARRAY, lltype.GcArray)
ARRAYITEMTYPES.append(arrayItem(ARRAY))
self.array_descrs = [cpu.arraydescrof(deref(fieldType(VTYPE, name)))
for name in array_fields]
#
self.num_static_extra_boxes = len(static_fields)
self.num_arrays = len(array_fields)
self.static_field_to_extra_box = dict(
[(name, i) for (i, name) in enumerate(static_fields)])
self.array_field_counter = dict(
[(name, i) for (i, name) in enumerate(array_fields)])
self.static_extra_types = [history.getkind(TYPE)
for TYPE in FIELDTYPES]
self.arrayitem_extra_types = [history.getkind(ITEM)
for ITEM in ARRAYITEMTYPES]
self.static_field_descrs = [cpu.fielddescrof(VTYPE, name)
for name in static_fields]
self.array_field_descrs = [cpu.fielddescrof(VTYPE, name)
for name in array_fields]
self.static_field_by_descrs = dict(
[(descr, i) for (i, descr) in enumerate(self.static_field_descrs)])
self.array_field_by_descrs = dict(
[(descr, i) for (i, descr) in enumerate(self.array_field_descrs)])
#
getlength = cpu.ts.getlength
getarrayitem = cpu.ts.getarrayitem
setarrayitem = cpu.ts.setarrayitem
def read_boxes(cpu, virtualizable):
assert lltype.typeOf(virtualizable) == llmemory.GCREF
virtualizable = cast_gcref_to_vtype(virtualizable)
boxes = []
for _, fieldname in unroll_static_fields:
x = getattr(virtualizable, fieldname)
boxes.append(wrap(cpu, x))
for _, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for i in range(getlength(lst)):
boxes.append(wrap(cpu, getarrayitem(lst, i)))
return boxes
def write_boxes(virtualizable, boxes):
virtualizable = cast_gcref_to_vtype(virtualizable)
i = 0
for FIELDTYPE, fieldname in unroll_static_fields:
x = unwrap(FIELDTYPE, boxes[i])
setattr(virtualizable, fieldname, x)
i = i + 1
for ARRAYITEMTYPE, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst)):
x = unwrap(ARRAYITEMTYPE, boxes[i])
setarrayitem(lst, j, x)
i = i + 1
assert len(boxes) == i + 1
def write_from_resume_data_partial(virtualizable, reader, numb):
virtualizable = cast_gcref_to_vtype(virtualizable)
# Load values from the reader (see resume.py) described by
# the list of numbers 'nums', and write them in their proper
# place in the 'virtualizable'. This works from the end of
# the list and returns the index in 'nums' of the start of
# the virtualizable data found, allowing the caller to do
# further processing with the start of the list.
i = len(numb.nums) - 1
assert i >= 0
for ARRAYITEMTYPE, fieldname in unroll_array_fields_rev:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst) - 1, -1, -1):
i -= 1
assert i >= 0
x = reader.load_value_of_type(ARRAYITEMTYPE, numb.nums[i])
setarrayitem(lst, j, x)
for FIELDTYPE, fieldname in unroll_static_fields_rev:
i -= 1
assert i >= 0
x = reader.load_value_of_type(FIELDTYPE, numb.nums[i])
setattr(virtualizable, fieldname, x)
return i
def load_list_of_boxes(virtualizable, reader, numb):
virtualizable = cast_gcref_to_vtype(virtualizable)
# Uses 'virtualizable' only to know the length of the arrays;
# does not write anything into it. The returned list is in
# the format expected of virtualizable_boxes, so it ends in
# the virtualizable itself.
i = len(numb.nums) - 1
assert i >= 0
boxes = [reader.decode_box_of_type(self.VTYPEPTR, numb.nums[i])]
for ARRAYITEMTYPE, fieldname in unroll_array_fields_rev:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst) - 1, -1, -1):
i -= 1
assert i >= 0
box = reader.decode_box_of_type(ARRAYITEMTYPE, numb.nums[i])
boxes.append(box)
for FIELDTYPE, fieldname in unroll_static_fields_rev:
i -= 1
assert i >= 0
box = reader.decode_box_of_type(FIELDTYPE, numb.nums[i])
boxes.append(box)
boxes.reverse()
return boxes
def check_boxes(virtualizable, boxes):
virtualizable = cast_gcref_to_vtype(virtualizable)
# for debugging
i = 0
for FIELDTYPE, fieldname in unroll_static_fields:
x = unwrap(FIELDTYPE, boxes[i])
assert getattr(virtualizable, fieldname) == x
i = i + 1
for ARRAYITEMTYPE, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst)):
x = unwrap(ARRAYITEMTYPE, boxes[i])
assert getarrayitem(lst, j) == x
i = i + 1
assert len(boxes) == i + 1
def get_index_in_array(virtualizable, arrayindex, index):
virtualizable = cast_gcref_to_vtype(virtualizable)
index += self.num_static_extra_boxes
j = 0
for _, fieldname in unroll_array_fields:
if arrayindex == j:
return index
lst = getattr(virtualizable, fieldname)
index += getlength(lst)
j = j + 1
assert False, "invalid arrayindex"
def get_array_length(virtualizable, arrayindex):
virtualizable = cast_gcref_to_vtype(virtualizable)
j = 0
for _, fieldname in unroll_array_fields:
if arrayindex == j:
lst = getattr(virtualizable, fieldname)
return getlength(lst)
j += 1
assert False, "invalid arrayindex"
unroll_static_fields = unrolling_iterable(zip(FIELDTYPES,
static_fields))
unroll_array_fields = unrolling_iterable(zip(ARRAYITEMTYPES,
array_fields))
unroll_static_fields_rev = unrolling_iterable(
reversed(list(unroll_static_fields)))
unroll_array_fields_rev = unrolling_iterable(
reversed(list(unroll_array_fields)))
self.read_boxes = read_boxes
self.write_boxes = write_boxes
self.write_from_resume_data_partial = write_from_resume_data_partial
self.load_list_of_boxes = load_list_of_boxes
self.check_boxes = check_boxes
self.get_index_in_array = get_index_in_array
self.get_array_length = get_array_length
def cast_to_vtype(virtualizable):
return self.cpu.ts.cast_to_instance_maybe(VTYPEPTR, virtualizable)
self.cast_to_vtype = cast_to_vtype
def cast_gcref_to_vtype(virtualizable):
assert lltype.typeOf(virtualizable) == llmemory.GCREF
return lltype.cast_opaque_ptr(VTYPEPTR, virtualizable)
self.cast_gcref_to_vtype = cast_gcref_to_vtype
def reset_vable_token(virtualizable):
virtualizable.vable_token = TOKEN_NONE
self.reset_vable_token = reset_vable_token
def clear_vable_token(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
if virtualizable.vable_token:
force_now(virtualizable)
assert not virtualizable.vable_token
self.clear_vable_token = clear_vable_token
def tracing_before_residual_call(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
assert not virtualizable.vable_token
virtualizable.vable_token = TOKEN_TRACING_RESCALL
self.tracing_before_residual_call = tracing_before_residual_call
def tracing_after_residual_call(virtualizable):
"""
Returns whether or not the virtualizable was forced during a
CALL_MAY_FORCE.
"""
virtualizable = cast_gcref_to_vtype(virtualizable)
if virtualizable.vable_token:
# not modified by the residual call; assert that it is still
# set to TOKEN_TRACING_RESCALL and clear it.
assert virtualizable.vable_token == TOKEN_TRACING_RESCALL
virtualizable.vable_token = TOKEN_NONE
return False
else:
# marker "modified during residual call" set.
return True
self.tracing_after_residual_call = tracing_after_residual_call
def force_now(virtualizable):
token = virtualizable.vable_token
if token == TOKEN_TRACING_RESCALL:
# The values in the virtualizable are always correct during
# tracing. We only need to reset vable_token to TOKEN_NONE
# as a marker for the tracing, to tell it that this
# virtualizable escapes.
virtualizable.vable_token = TOKEN_NONE
else:
from rpython.jit.metainterp.compile import ResumeGuardForcedDescr
ResumeGuardForcedDescr.force_now(cpu, token)
assert virtualizable.vable_token == TOKEN_NONE
force_now._dont_inline_ = True
self.force_now = force_now
def is_token_nonnull_gcref(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
return bool(virtualizable.vable_token)
self.is_token_nonnull_gcref = is_token_nonnull_gcref
def reset_token_gcref(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
virtualizable.vable_token = TOKEN_NONE
self.reset_token_gcref = reset_token_gcref
def __init__(self, warmrunnerdesc, VTYPEPTR):
self.warmrunnerdesc = warmrunnerdesc
cpu = warmrunnerdesc.cpu
self.cpu = cpu
#
VTYPEPTR1 = VTYPEPTR
while 'virtualizable_accessor' not in deref(VTYPEPTR)._hints:
VTYPEPTR = cpu.ts.get_superclass(VTYPEPTR)
assert VTYPEPTR is not None, (
"%r is listed in the jit driver's 'virtualizables', "
"but that class doesn't have a '_virtualizable_' attribute "
"(if it has _virtualizable2_, rename it to _virtualizable_)" %
(VTYPEPTR1, ))
self.VTYPEPTR = VTYPEPTR
self.VTYPE = VTYPE = deref(VTYPEPTR)
self.vable_token_descr = cpu.fielddescrof(VTYPE, 'vable_token')
#
accessor = VTYPE._hints['virtualizable_accessor']
all_fields = accessor.fields
static_fields = []
array_fields = []
for name, tp in all_fields.iteritems():
if tp == IR_IMMUTABLE_ARRAY:
array_fields.append(name)
elif tp == IR_IMMUTABLE:
static_fields.append(name)
else:
raise Exception("unknown type: %s" % tp)
self.static_fields = static_fields
self.array_fields = array_fields
#
FIELDTYPES = [fieldType(VTYPE, name) for name in static_fields]
ARRAYITEMTYPES = []
for name in array_fields:
ARRAYPTR = fieldType(VTYPE, name)
ARRAY = deref(ARRAYPTR)
assert isinstance(ARRAYPTR, lltype.Ptr)
if not isinstance(ARRAY, lltype.GcArray):
raise Exception(
"The virtualizable field '%s' is not an array (found %r)."
" It usually means that you must try harder to ensure that"
" the list is not resized at run-time. You can do that by"
" using rpython.rlib.debug.make_sure_not_resized()." %
(name, ARRAY))
ARRAYITEMTYPES.append(arrayItem(ARRAY))
self.array_descrs = [
cpu.arraydescrof(deref(fieldType(VTYPE, name)))
for name in array_fields
]
#
self.num_static_extra_boxes = len(static_fields)
self.num_arrays = len(array_fields)
self.static_field_to_extra_box = dict([
(name, i) for (i, name) in enumerate(static_fields)
])
self.array_field_counter = dict([
(name, i) for (i, name) in enumerate(array_fields)
])
self.static_extra_types = [
history.getkind(TYPE) for TYPE in FIELDTYPES
]
self.arrayitem_extra_types = [
history.getkind(ITEM) for ITEM in ARRAYITEMTYPES
]
self.static_field_descrs = [
cpu.fielddescrof(VTYPE, name) for name in static_fields
]
self.array_field_descrs = [
cpu.fielddescrof(VTYPE, name) for name in array_fields
]
for descr in self.static_field_descrs:
descr.vinfo = self
for descr in self.array_field_descrs:
descr.vinfo = self
self.static_field_by_descrs = dict([
(descr, i) for (i, descr) in enumerate(self.static_field_descrs)
])
self.array_field_by_descrs = dict([
(descr, i) for (i, descr) in enumerate(self.array_field_descrs)
])
#
getlength = cpu.ts.getlength
getarrayitem = cpu.ts.getarrayitem
setarrayitem = cpu.ts.setarrayitem
def read_boxes(cpu, virtualizable):
assert lltype.typeOf(virtualizable) == llmemory.GCREF
virtualizable = cast_gcref_to_vtype(virtualizable)
boxes = []
for _, fieldname in unroll_static_fields:
x = getattr(virtualizable, fieldname)
boxes.append(wrap(cpu, x))
for _, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for i in range(getlength(lst)):
boxes.append(wrap(cpu, getarrayitem(lst, i)))
return boxes
def write_boxes(virtualizable, boxes):
virtualizable = cast_gcref_to_vtype(virtualizable)
i = 0
for FIELDTYPE, fieldname in unroll_static_fields:
x = unwrap(FIELDTYPE, boxes[i])
setattr(virtualizable, fieldname, x)
i = i + 1
for ARRAYITEMTYPE, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst)):
x = unwrap(ARRAYITEMTYPE, boxes[i])
setarrayitem(lst, j, x)
i = i + 1
assert len(boxes) == i + 1
def get_total_size(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
size = 0
for _, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
size += getlength(lst)
for _, fieldname in unroll_static_fields:
size += 1
return size
def write_from_resume_data_partial(virtualizable, reader):
virtualizable = cast_gcref_to_vtype(virtualizable)
# Load values from the reader (see resume.py) described by
# the list of numbers 'nums', and write them in their proper
# place in the 'virtualizable'.
for FIELDTYPE, fieldname in unroll_static_fields:
x = reader.load_next_value_of_type(FIELDTYPE)
setattr(virtualizable, fieldname, x)
for ARRAYITEMTYPE, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst)):
x = reader.load_next_value_of_type(ARRAYITEMTYPE)
setarrayitem(lst, j, x)
def load_list_of_boxes(virtualizable, reader, vable_box):
virtualizable = cast_gcref_to_vtype(virtualizable)
# Uses 'virtualizable' only to know the length of the arrays;
# does not write anything into it. The returned list is in
# the format expected of virtualizable_boxes, so it ends in
# the virtualizable itself.
boxes = []
for FIELDTYPE, fieldname in unroll_static_fields:
box = reader.next_box_of_type(FIELDTYPE)
boxes.append(box)
for ARRAYITEMTYPE, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst)):
box = reader.next_box_of_type(ARRAYITEMTYPE)
boxes.append(box)
boxes.append(vable_box)
return boxes
def check_boxes(virtualizable, boxes):
virtualizable = cast_gcref_to_vtype(virtualizable)
# for debugging
i = 0
for FIELDTYPE, fieldname in unroll_static_fields:
x = unwrap(FIELDTYPE, boxes[i])
assert getattr(virtualizable, fieldname) == x
i = i + 1
for ARRAYITEMTYPE, fieldname in unroll_array_fields:
lst = getattr(virtualizable, fieldname)
for j in range(getlength(lst)):
x = unwrap(ARRAYITEMTYPE, boxes[i])
assert getarrayitem(lst, j) == x
i = i + 1
assert len(boxes) == i + 1
def get_index_in_array(virtualizable, arrayindex, index):
virtualizable = cast_gcref_to_vtype(virtualizable)
index += self.num_static_extra_boxes
j = 0
for _, fieldname in unroll_array_fields:
if arrayindex == j:
return index
lst = getattr(virtualizable, fieldname)
index += getlength(lst)
j = j + 1
assert False, "invalid arrayindex"
def get_array_length(virtualizable, arrayindex):
virtualizable = cast_gcref_to_vtype(virtualizable)
j = 0
for _, fieldname in unroll_array_fields:
if arrayindex == j:
lst = getattr(virtualizable, fieldname)
return getlength(lst)
j += 1
assert False, "invalid arrayindex"
unroll_static_fields = unrolling_iterable(
zip(FIELDTYPES, static_fields))
unroll_array_fields = unrolling_iterable(
zip(ARRAYITEMTYPES, array_fields))
unroll_static_fields_rev = unrolling_iterable(
reversed(list(unroll_static_fields)))
unroll_array_fields_rev = unrolling_iterable(
reversed(list(unroll_array_fields)))
self.read_boxes = read_boxes
self.write_boxes = write_boxes
self.write_from_resume_data_partial = write_from_resume_data_partial
self.load_list_of_boxes = load_list_of_boxes
self.check_boxes = check_boxes
self.get_index_in_array = get_index_in_array
self.get_array_length = get_array_length
self.get_total_size = get_total_size
def cast_to_vtype(virtualizable):
return self.cpu.ts.cast_to_instance_maybe(VTYPEPTR, virtualizable)
self.cast_to_vtype = cast_to_vtype
def cast_gcref_to_vtype(virtualizable):
assert lltype.typeOf(virtualizable) == llmemory.GCREF
return lltype.cast_opaque_ptr(VTYPEPTR, virtualizable)
self.cast_gcref_to_vtype = cast_gcref_to_vtype
def clear_vable_token(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
if virtualizable.vable_token:
force_now(virtualizable)
assert not virtualizable.vable_token
self.clear_vable_token = clear_vable_token
def tracing_before_residual_call(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
assert not virtualizable.vable_token
virtualizable.vable_token = TOKEN_TRACING_RESCALL
self.tracing_before_residual_call = tracing_before_residual_call
def tracing_after_residual_call(virtualizable):
"""
Returns whether or not the virtualizable was forced during a
CALL_MAY_FORCE.
"""
virtualizable = cast_gcref_to_vtype(virtualizable)
if virtualizable.vable_token:
# not modified by the residual call; assert that it is still
# set to TOKEN_TRACING_RESCALL and clear it.
assert virtualizable.vable_token == TOKEN_TRACING_RESCALL
virtualizable.vable_token = TOKEN_NONE
return False
else:
# marker "modified during residual call" set.
return True
self.tracing_after_residual_call = tracing_after_residual_call
def force_now(virtualizable):
token = virtualizable.vable_token
if token == TOKEN_TRACING_RESCALL:
# The values in the virtualizable are always correct during
# tracing. We only need to reset vable_token to TOKEN_NONE
# as a marker for the tracing, to tell it that this
# virtualizable escapes.
virtualizable.vable_token = TOKEN_NONE
else:
from rpython.jit.metainterp.compile import ResumeGuardForcedDescr
ResumeGuardForcedDescr.force_now(cpu, token)
assert virtualizable.vable_token == TOKEN_NONE
force_now._dont_inline_ = True
self.force_now = force_now
def is_token_nonnull_gcref(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
return bool(virtualizable.vable_token)
self.is_token_nonnull_gcref = is_token_nonnull_gcref
def reset_token_gcref(virtualizable):
virtualizable = cast_gcref_to_vtype(virtualizable)
virtualizable.vable_token = TOKEN_NONE
self.reset_token_gcref = reset_token_gcref
def reset_vable_token(virtualizable):
virtualizable.vable_token = TOKEN_NONE
self.reset_vable_token = reset_vable_token