Merge pull request #5568 from notoraptor/fix-windows

Clarify error message related to expected kern_shape specs (1D, int64) in GpuDnnConvDesc

Author: nouiz

theano/gpuarray/dnn.py

@@ -385,8 +385,10 @@ def __init__(self, border_mode, subsample=(1, 1), conv_mode='conv',
         self.precision = precision
 
     def make_node(self, kern_shape):
-        if kern_shape.type.ndim != 1 or kern_shape.type.dtype != 'int64':
-            raise TypeError('kern must be 1D shape tensor')
+        kern_shape = as_tensor_variable(kern_shape)
+        if kern_shape.type.ndim != 1 or kern_shape.dtype not in theano.tensor.basic.int_dtypes:
+            raise TypeError('kern must be an int64 1D shape tensor')
+        kern_shape = theano.tensor.basic.cast(kern_shape, 'int64')
 
         node = Apply(self, [kern_shape],
                      [CDataType("cudnnConvolutionDescriptor_t",