message: Initialize the unused "5th output" of FusedBatchNormGrad in order to avoid sanitizer warnings.
diff: @@ -206,6 +206,8 @@ class CudnnBatchNormAllocatorInOutput : public ScratchAllocator {
  Tensor* dummy_reserve_space = nullptr;
  OP_REQUIRES_OK(context_, context_->allocate_output(output_index_, {},
  &dummy_reserve_space));
  + // Initialize the memory, to avoid sanitizer alerts.
  + dummy_reserve_space->flat<T>()(0) = T();
  }
  CudnnBatchNormAllocatorInOutput(OpKernelContext* context, int output_index)
  : context_(context), output_index_(output_index) {}
  