waytrue17 commented on a change in pull request #19614:
URL: https://github.com/apache/incubator-mxnet/pull/19614#discussion_r537733240
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File path: src/imperative/cached_op.cc
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@@ -327,9 +327,10 @@ bool CachedOp::SetBackwardGraph(
node_range = {num_forward_nodes, idx.num_nodes()};
entry_range = {num_forward_entries, idx.num_node_entries()};
+ bool contain_dynamic_shape = false;
Review comment:
This variable is used in `CheckAndInferShape` to handle cases where we
have unknown shapes during backward. The CI failed on a test case and adding
this variable seems fix it. We also have the same variable existed in
`CachedOp::SetForwardGraph`
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