tree 3f20742049acb1a1d38c1f2d8b824005ad6fee95
parent 0004a45014820ac1420c314b032249c969847b78
author Kuangyuan Chen <chky@google.com> 1620064611 -0700
committer TensorFlower Gardener <gardener@tensorflow.org> 1620064905 -0700

Refactor ConvertSavedModelV1ToMlirLite() to take absl::optional<absl::Span<const std::string>> as exported_names.

Previously, if exported_names is empty, then all signatures will be imported. This does not work if we only want to import restore/init graphs.
This CL uses absl::optional for exported_names instead. When it is absl::nullopt, all signatures will be imported. Otherwise, only names in exported_names will be imported.

PiperOrigin-RevId: 371732912
Change-Id: Ieafd8a94bcb9d755f36eb21ac5aac9d8cdcaf1a2