commit d01b6d6523d5c5a65ee6599635e4f7787832505f
author Xusong Wang <xusongw@google.com> Mon Jan 14 18:53:00 2019 -0800
committer Xusong Wang <xusongw@google.com> Tue Jan 29 18:27:27 2019 -0800
tree b1da5a197abf1eeff46493584c670da56c50d68b
parent 3d6dd125b74514c2e2d14c18a57a00263bef747b

Implement NNAPI compilation caching runtime.

Implement compilation caching in runtime and add compilation caching
tests.

The token from user is transformed during the partitioning process by
SHA256 hasher based on
- device name
- device version string
- execution preference
- which operation (index) is included in the partition

Add tests to test compilation caching and the partitioner.

Bug: 119616526
Test: NeuralNetworksTest_static
Change-Id: I41e9dce10d95f744382894299c0d68bb8d10c08c