[XLA] Correct assertions in tf2xla tile_ops.

Zero inputs for the multiples are supported but were being disallowed by an assertion.

PiperOrigin-RevId: 209132264

2 files changed, 11 insertions, 1 deletions

diff --git a/tensorflow/compiler/tests/binary_ops_test.py b/tensorflow/compiler/tests/binary_ops_test.py
index 0aafda7fb4..5b7001b5a4 100644
--- a/tensorflow/compiler/tests/binary_ops_test.py
+++ b/tensorflow/compiler/tests/binary_ops_test.py
@@ -1167,6 +1167,16 @@ class BinaryOpsTest(xla_test.XLATestCase):
     for dtype in self.numeric_types:
       self._testBinary(
           array_ops.tile,
+          np.array([[6], [3], [4]], dtype=dtype),
+          np.array([2, 0], dtype=np.int32),
+          expected=np.empty([6, 0], dtype=dtype))
+      self._testBinary(
+          array_ops.tile,
+          np.array([[6, 3, 4]], dtype=dtype),
+          np.array([2, 0], dtype=np.int32),
+          expected=np.empty([2, 0], dtype=dtype))
+      self._testBinary(
+          array_ops.tile,
           np.array([[6]], dtype=dtype),
           np.array([1, 2], dtype=np.int32),
           expected=np.array([[6, 6]], dtype=dtype))
diff --git a/tensorflow/compiler/tf2xla/kernels/tile_ops.cc b/tensorflow/compiler/tf2xla/kernels/tile_ops.cc
index 1233a37565..2c7213f322 100644
--- a/tensorflow/compiler/tf2xla/kernels/tile_ops.cc
+++ b/tensorflow/compiler/tf2xla/kernels/tile_ops.cc
@@ -70,7 +70,7 @@ class TileOp : public XlaOpKernel {
     bool one_dimension_is_broadcasted_without_multiple = true;
     for (int i = 0; i < input_dims; ++i) {
       int multiple = literal.Get<int>({i});
-      OP_REQUIRES(ctx, multiple,
+      OP_REQUIRES(ctx, multiple >= 0,
                   errors::InvalidArgument("Expected multiples[", i,
                                           "] >= 0, but got ", multiple));
       int64 new_dim = input_shape.dim_size(i) * multiple;