Commit 45a95587 authored by Yunxing Dai's avatar Yunxing Dai Committed by TensorFlower Gardener
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Don't rematerialize copy nodes. 

Copy insertion adds copies to prevent buffer clobbering. Rematerialize those copies could reintroduce the clobbering. This CL adds copies into the blacklist of rematerialization pass.

PiperOrigin-RevId: 229599559
parent e388dfcd
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