def expand(state, pack, args, arg, index):
""" Expand a value into a vector box. useful for arith metic
of one vector with a scalar (either constant/varialbe)
"""
left = pack.leftmost()
box_type = arg.type
expanded_map = state.expanded_map
ops = state.invariant_oplist
variables = state.invariant_vector_vars
if not arg.is_constant() and arg not in state.inputargs:
# cannot be created before the loop, expand inline
ops = state.oplist
variables = None
for i, node in enumerate(pack.operations):
op = node.getoperation()
if not arg.same_box(op.getarg(index)):
break
i += 1
else:
# note that heterogenous nodes are not yet tracked
vecop = state.find_expanded([arg])
if vecop:
args[index] = vecop
return vecop
left = pack.leftmost()
vecinfo = forwarded_vecinfo(left)
vecop = OpHelpers.create_vec_expand(arg, vecinfo.bytesize, vecinfo.signed, pack.numops())
ops.append(vecop)
if variables is not None:
variables.append(vecop)
state.expand([arg], vecop)
args[index] = vecop
return vecop
# quick search if it has already been expanded
expandargs = [op.getoperation().getarg(index) for op in pack.operations]
vecop = state.find_expanded(expandargs)
if vecop:
args[index] = vecop
return vecop
arg_vecinfo = forwarded_vecinfo(arg)
vecop = OpHelpers.create_vec(arg.type, arg_vecinfo.bytesize, arg_vecinfo.signed, pack.opnum())
ops.append(vecop)
for i,node in enumerate(pack.operations):
op = node.getoperation()
arg = op.getarg(index)
arguments = [vecop, arg, ConstInt(i), ConstInt(1)]
vecinfo = forwarded_vecinfo(vecop)
vecop = OpHelpers.create_vec_pack(arg.type, arguments, vecinfo.bytesize,
vecinfo.signed, vecinfo.count+1)
ops.append(vecop)
state.expand(expandargs, vecop)
if variables is not None:
variables.append(vecop)
args[index] = vecop
def expand(state, pack, args, arg, index):
""" Expand a value into a vector box. useful for arith metic
of one vector with a scalar (either constant/varialbe)
"""
left = pack.leftmost()
box_type = arg.type
expanded_map = state.expanded_map
ops = state.invariant_oplist
variables = state.invariant_vector_vars
if not arg.is_constant() and arg not in state.inputargs:
# cannot be created before the loop, expand inline
ops = state.oplist
variables = None
for i, node in enumerate(pack.operations):
op = node.getoperation()
if not arg.same_box(op.getarg(index)):
break
i += 1
else:
# note that heterogenous nodes are not yet tracked
vecop = state.find_expanded([arg])
if vecop:
args[index] = vecop
return vecop
left = pack.leftmost()
vecinfo = forwarded_vecinfo(left)
vecop = OpHelpers.create_vec_expand(arg, vecinfo.bytesize, vecinfo.signed, pack.numops())
ops.append(vecop)
if variables is not None:
variables.append(vecop)
state.expand([arg], vecop)
args[index] = vecop
return vecop
# quick search if it has already been expanded
expandargs = [op.getoperation().getarg(index) for op in pack.operations]
vecop = state.find_expanded(expandargs)
if vecop:
args[index] = vecop
return vecop
arg_vecinfo = forwarded_vecinfo(arg)
vecop = OpHelpers.create_vec(arg.type, arg_vecinfo.bytesize, arg_vecinfo.signed, pack.opnum())
ops.append(vecop)
for i,node in enumerate(pack.operations):
op = node.getoperation()
arg = op.getarg(index)
arguments = [vecop, arg, ConstInt(i), ConstInt(1)]
vecinfo = forwarded_vecinfo(vecop)
vecop = OpHelpers.create_vec_pack(arg.type, arguments, vecinfo.bytesize,
vecinfo.signed, vecinfo.count+1)
ops.append(vecop)
state.expand(expandargs, vecop)
if variables is not None:
variables.append(vecop)
args[index] = vecop
def accumulate_prepare(self, state):
vec_reg_size = state.vec_reg_size
for pack in self.packs:
if not pack.is_accumulating():
continue
if pack.leftmost().is_guard():
# guard breaks dependencies, thus it is an accumulation pack
continue
for i,node in enumerate(pack.operations):
op = node.getoperation()
state.accumulation[op] = pack
assert isinstance(pack, AccumPack)
datatype = pack.getdatatype()
bytesize = pack.getbytesize()
count = vec_reg_size // bytesize
signed = datatype == 'i'
oplist = state.invariant_oplist
# reset the box to zeros or ones
if pack.reduce_init() == 0:
vecop = OpHelpers.create_vec(datatype, bytesize, signed, count)
oplist.append(vecop)
opnum = rop.VEC_INT_XOR
if datatype == FLOAT:
# see PRECISION loss below
raise NotImplementedError
vecop = VecOperation(opnum, [vecop, vecop],
vecop, count)
oplist.append(vecop)
elif pack.reduce_init() == 1:
# PRECISION loss, because the numbers are accumulated (associative, commutative properties must hold)
# you can end up a small number and a huge number that is finally multiplied. giving an
# inprecision result, thus this is disabled now
raise NotImplementedError
# multiply is only supported by floats
vecop = OpHelpers.create_vec_expand(ConstFloat(1.0), bytesize,
signed, count)
oplist.append(vecop)
else:
raise NotImplementedError("cannot handle %s" % pack.operator)
# pack the scalar value
args = [vecop, pack.getleftmostseed(), ConstInt(0), ConstInt(1)]
vecop = OpHelpers.create_vec_pack(datatype, args, bytesize,
signed, count)
oplist.append(vecop)
seed = pack.getleftmostseed()
state.accumulation[seed] = pack
# rename the variable with the box
state.setvector_of_box(seed, 0, vecop) # prevent it from expansion
state.renamer.start_renaming(seed, vecop)
def accumulate_prepare(self, state):
vec_reg_size = state.vec_reg_size
for pack in self.packs:
if not pack.is_accumulating():
continue
if pack.leftmost().is_guard():
# guard breaks dependencies, thus it is an accumulation pack
continue
for i,node in enumerate(pack.operations):
op = node.getoperation()
state.accumulation[op] = pack
assert isinstance(pack, AccumPack)
datatype = pack.getdatatype()
bytesize = pack.getbytesize()
count = vec_reg_size // bytesize
signed = datatype == 'i'
oplist = state.invariant_oplist
# reset the box to zeros or ones
if pack.reduce_init() == 0:
vecop = OpHelpers.create_vec(datatype, bytesize, signed, count)
oplist.append(vecop)
vecop = VecOperation(rop.VEC_INT_XOR, [vecop, vecop],
vecop, count)
oplist.append(vecop)
elif pack.reduce_init() == 1:
# multiply is only supported by floats
vecop = OpHelpers.create_vec_expand(ConstFloat(1.0), bytesize,
signed, count)
oplist.append(vecop)
else:
raise NotImplementedError("cannot handle %s" % pack.operator)
# pack the scalar value
args = [vecop, pack.getleftmostseed(), ConstInt(0), ConstInt(1)]
vecop = OpHelpers.create_vec_pack(datatype, args, bytesize,
signed, count)
oplist.append(vecop)
seed = pack.getleftmostseed()
state.accumulation[seed] = pack
# rename the variable with the box
state.setvector_of_box(seed, 0, vecop) # prevent it from expansion
state.renamer.start_renaming(seed, vecop)
