def pack_load(self, vec_reg_size):
""" Returns the load of the pack a vector register would hold
just after executing the operation.
returns: < 0 - empty, nearly empty
= 0 - full
> 0 - overloaded
"""
left = self.leftmost()
if left.returns_void():
if rop.is_primitive_store(left.opnum):
# make this case more general if it turns out this is
# not the only case where packs need to be trashed
descr = left.getdescr()
bytesize = descr.get_item_size_in_bytes()
return bytesize * self.numops() - vec_reg_size
else:
assert left.is_guard() and left.getopnum() in \
(rop.GUARD_TRUE, rop.GUARD_FALSE)
vecinfo = forwarded_vecinfo(left.getarg(0))
bytesize = vecinfo.bytesize
return bytesize * self.numops() - vec_reg_size
return 0
if self.numops() == 0:
return -1
if left.is_typecast():
# casting is special, often only takes a half full vector
if left.casts_down():
# size is reduced
size = left.cast_input_bytesize(vec_reg_size)
return left.cast_from_bytesize() * self.numops() - size
else:
# size is increased
#size = left.cast_input_bytesize(vec_reg_size)
return left.cast_to_bytesize() * self.numops() - vec_reg_size
vecinfo = forwarded_vecinfo(left)
return vecinfo.bytesize * self.numops() - vec_reg_size
def pack_load(self, vec_reg_size):
""" Returns the load of the pack a vector register would hold
just after executing the operation.
returns: < 0 - empty, nearly empty
= 0 - full
> 0 - overloaded
"""
left = self.leftmost()
if left.returns_void():
if rop.is_primitive_store(left.opnum):
# make this case more general if it turns out this is
# not the only case where packs need to be trashed
descr = left.getdescr()
bytesize = descr.get_item_size_in_bytes()
return bytesize * self.numops() - vec_reg_size
else:
assert left.is_guard() and left.getopnum() in \
(rop.GUARD_TRUE, rop.GUARD_FALSE)
vecinfo = forwarded_vecinfo(left.getarg(0))
bytesize = vecinfo.bytesize
return bytesize * self.numops() - vec_reg_size
return 0
if self.numops() == 0:
return -1
if left.is_typecast():
# casting is special, often only takes a half full vector
if left.casts_down():
# size is reduced
size = left.cast_input_bytesize(vec_reg_size)
return left.cast_from_bytesize() * self.numops() - size
else:
# size is increased
#size = left.cast_input_bytesize(vec_reg_size)
return left.cast_to_bytesize() * self.numops() - vec_reg_size
vecinfo = forwarded_vecinfo(left)
return vecinfo.bytesize * self.numops() - vec_reg_size
def opcount_filling_vector_register(self, op, vec_reg_size):
assert rop.is_primitive_store(op.opnum)
descr = op.getdescr()
return vec_reg_size // descr.get_item_size_in_bytes()
def opcount_filling_vector_register(self, op, vec_reg_size):
assert rop.is_primitive_store(op.opnum)
descr = op.getdescr()
return vec_reg_size // descr.get_item_size_in_bytes()