Commit d703f64e authored by Benjamin Kramer's avatar Benjamin Kramer Committed by TensorFlower Gardener
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[XLA] Simplify double negate and double not 

Double neg shows up around sort ops. Add a simple peephole optimization for
neg(neg(x)) => x. Also handle not(not(x)) => x while there.

PiperOrigin-RevId: 220783764
parent 45a841ae
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