Internal cleanup

PiperOrigin-RevId: 171053770

tensorflow/python/eager/execute.py

@@ -168,27 +168,31 @@ def make_tensor(v, arg_name):
 
 def args_to_matching_eager(l, ctx, default_dtype=None):
   """Convert sequence `l` to eager same-type Tensors."""
+  EagerTensor = ops.EagerTensor  # pylint: disable=invalid-name
+  if all(isinstance(x, EagerTensor) for x in l):
+    return l[0].dtype, l
   # TODO(josh11b): Could we do a better job if we also passed in the
   # allowed dtypes when that was known?
 
   # Is some input already a Tensor with a dtype?
   dtype = None
   for t in l:
-    if isinstance(t, ops.EagerTensor):
+    if isinstance(t, EagerTensor):
       dtype = t.dtype
       break
 
+  internal_convert_to_tensor = ops.internal_convert_to_tensor
   if dtype is None:
     # Infer a dtype based on the first value, and use that dtype for the
     # remaining values.
     ret = []
     for t in l:
-      ret.append(ops.internal_convert_to_tensor(
+      ret.append(internal_convert_to_tensor(
           t, dtype, preferred_dtype=default_dtype, ctx=ctx))
       if dtype is None:
         dtype = ret[-1].dtype
   else:
-    ret = [ops.internal_convert_to_tensor(t, dtype, ctx=ctx) for t in l]
+    ret = [internal_convert_to_tensor(t, dtype, ctx=ctx) for t in l]
 
   return dtype, ret
 

tensorflow/python/layers/base.py

@@ -112,8 +112,10 @@ class Layer(object):
     self._per_input_losses = {}
     self._per_input_updates = {}
     self._dtype = None if dtype is None else dtypes.as_dtype(dtype).name
-    self._compute_previous_mask = ('mask' in estimator_util.fn_args(self.call)
-                                   or hasattr(self, 'compute_mask'))
+    call_fn_args = estimator_util.fn_args(self.call)
+    self._compute_previous_mask = ('mask' in call_fn_args or
+                                   hasattr(self, 'compute_mask'))
+    self._call_has_scope_arg = 'scope' in call_fn_args
 
     # These lists will be filled via successive calls
     # to self._add_inbound_node().
@@ -555,7 +557,15 @@ class Layer(object):
             self.build(input_shapes[0])
           else:
             self.build(input_shapes)
-        if 'scope' in estimator_util.fn_args(self.call):
+        try:
+          # Note: not all sub-classes of Layer call Layer.__init__ (especially
+          # the ones under tensorflow/python/keras). Hence we recompute this
+          # attribute here if it is not set.
+          # TODO(agarwal): Fix the sub-classes and avoid this complexity.
+          call_has_scope_arg = self._call_has_scope_arg
+        except AttributeError:
+          call_has_scope_arg = 'scope' in estimator_util.fn_args(self.call)
+        if call_has_scope_arg:
           kwargs['scope'] = scope
         # Check input assumptions set after layer building, e.g. input shape.
         if in_graph_mode:
@@ -1433,8 +1443,10 @@ class Network(Layer):
     self._activity_regularizer = None
     self._scope = next(vs.variable_scope(None, default_name=base_name).gen)
     self._base_name = base_name
-    self._compute_previous_mask = ('mask' in estimator_util.fn_args(self.call)
-                                   or hasattr(self, 'compute_mask'))
+    call_fn_args = estimator_util.fn_args(self.call)
+    self._compute_previous_mask = ('mask' in call_fn_args or
+                                   hasattr(self, 'compute_mask'))
+    self._call_has_scope_arg = 'scope' in call_fn_args
 
     # This acts just like the `trainable` attribute of any layer instance.
     # It does not affect users of the underlying layers, only users of the

tensorflow/python/layers/normalization.py

@@ -330,7 +330,7 @@ class BatchNormalization(base.Layer):
                                       lambda: self._one_minus_decay,
                                       lambda: 0.)
     else:
-      one_minus_decay = self._one_minus_decay
+      one_minus_decay = ops.convert_to_tensor(self._one_minus_decay)
     if training_value or training_value is None:
       mean_update = self._assign_moving_average(self.moving_mean, mean,
                                                 one_minus_decay)

tensorflow/python/ops/resource_variable_ops.py

@@ -540,17 +540,9 @@ class ResourceVariable(variables.Variable):
      the read operation.
     """
     with ops.name_scope("Read"):
-      # In graph mode, ensure we read the variable in the same device as the
-      # handle. In eager mode, however, this sometimes tries to read a GPU
-      # variable in the CPU because the handle is host memory. For now, then, we
-      # need to skip the device block in eager. TODO(apassos): eager should have
-      # separate notions of device and memory, so handle.device can be GPU while
-      # handle.memory_space is always CPU.
-      if context.in_graph_mode():
+      # Ensure we read the variable in the same device as the handle.
       with ops.device(self._handle_device):
         value = self._read_variable_op()
-      else:
-        value = self._read_variable_op()
     # Return an identity so it can get placed on whatever device the context
     # specifies instead of the device where the variable is.
     return array_ops.identity(value)