clean the unused control flow input nodes from the graph #2287
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kangyizhang
approved these changes
Oct 29, 2019
dsmilkov
approved these changes
Oct 30, 2019
…ensorflow/tfjs into remove_unused_control_flow_placeholder
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Grappler will generate unused control flow input nodes if the loop is wrapping a node, which has input node missing, converter will remove those placeholder node with the fix prefix node name 'unused_control_flow_input'.
fix #2254 (comment)
ref #841
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