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-rw-r--r--tensorflow/core/ops/math_ops.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/tensorflow/core/ops/math_ops.cc b/tensorflow/core/ops/math_ops.cc
index 7b10af9f44..d30b847696 100644
--- a/tensorflow/core/ops/math_ops.cc
+++ b/tensorflow/core/ops/math_ops.cc
@@ -1829,6 +1829,8 @@ need not be sorted and need not cover all values in the full
range of valid values.
If the sum is empty for a given segment ID `i`, `output[i] = 0`.
+If the given segment ID `i` is negative, the value is dropped and will not be
+added to the sum of the segment.
`num_segments` should equal the number of distinct segment IDs.