remove old shape hacks

src/backend/mxnet/graph.jl

@@ -11,7 +11,7 @@ node(x::mx.SymbolicNode) = x
 
 graph(::typeof(tuple), args...) = (args...,)
 graph(s::Split, t::Tuple) = t[s.n]
-graph(::typeof(*), args...) = mx.dot(reverse(args)...)
+graph(::typeof(*), args...) = mx.dot(args...)
 graph(::typeof(+), args...) = mx.broadcast_plus(args...)
 graph(::typeof(σ), x) = mx.Activation(data = x, act_type = :sigmoid)
 graph(::typeof(relu), x) = mx.Activation(data = x, act_type=:relu)

src/backend/mxnet/model.jl

@@ -7,18 +7,14 @@ type MXModel <: Model
   exec::mx.Executor
 end
 
-mxdims(dims::NTuple) = reverse(dims)
-
-mxdims(n::Integer) = mxdims((n,))
-
 function tond!(nd::mx.NDArray, xs::AArray)
-  mx.copy_ignore_shape!(nd, xs')
+  mx.copy_ignore_shape!(nd, xs)
   nd
 end
 
-tond(xs::AArray) = tond!(mx.zeros(mxdims(size(xs))), xs)
+tond(xs::AArray) = copy!(mx.zeros(size(xs)), xs)
 
-fromnd(xs::mx.NDArray) = copy(xs)'
+fromnd(xs::mx.NDArray) = copy(xs)
 
 ndzero!(xs::mx.NDArray) = copy!(xs, mx.zeros(size(xs)))
 
@@ -45,7 +41,7 @@ end
 
 function mxnet(model::Model, input)
   params, stacks, node = tograph(model, mx.Variable(:input))
-  args = merge(mxargs(params), Dict(:input => mx.zeros(mxdims(input))))
+  args = merge(mxargs(params), Dict(:input => mx.zeros(input)))
   grads = mxgrads(args)
   model = MXModel(model, params, grads,
                   mx.bind(node, args = args,