message: Rename filter indexes from a to k
diff: @@ -2095,7 +2095,7 @@ class Pool(tile.Operation):
  out_spatial_dims.append(sym_out)
  num_out_spatial_shape.append(num_out)
  pad_amount.append(sym_pad)
  - in_spatial_idxs.append('{stride}*x{idx} + a{idx} - Pad{idx}'.format(
  + in_spatial_idxs.append('{stride}*x{idx} + k{idx} - Pad{idx}'.format(
  stride=strides[i], idx=i))
  out_spatial_idxs = ['x{}'.format(i) for i in range(rank)]
  padding_list = ['Pad{} = {};'.format(i, pad_amount[i]) for i in range(rank)]
  @@ -2135,7 +2135,7 @@ class Pool(tile.Operation):
  cout_idxs=', '.join(out_idxs),
  cout_dims=', '.join(out_dims),
  pool_bounds=', '.join(
  - ['a{} < {}'.format(i, kernel_shape[i]) for i in range(rank)]),
  + ['k{} < {}'.format(i, kernel_shape[i]) for i in range(rank)]),
  )
  denom_divide_code = """
  O = S / Count;"""
  @@ -2165,7 +2165,7 @@ class Pool(tile.Operation):
  in_idxs=', '.join(in_idxs),
  in_dims=', '.join(in_dims),
  out_name=pool_contraction_out_name,
  - pool_bounds=', '.join(['a{} < {}'.format(i, kernel_shape[i]) for i in range(rank)]))
  + pool_bounds=', '.join(['k{} < {}'.format(i, kernel_shape[i]) for i in range(rank)]))
  outshape = tile.Shape(data.shape.dtype, num_out_shape)
  