tree b15de32bf9f8612f66e1ae23d2f8009e80e7d0e6
parent d089b74bebbcc8518fb0f4eacb7e6569ae170199
author Matteo Martincigh <matteo.martincigh@arm.com> 1548338783 +0000
committer Matteo Martincigh <matteo.martincigh@arm.com> 1548857008 +0000

IVGCVSW-2458 Refactor the Optimize function (Network.cpp) so that
subgraphs are optimized by the backends

 * Added a new method OptimizeSubGraph to the backend interface
 * Refactored the Optimize function so that the backend-specific
   optimization is performed by the backend itself (through the new
   OptimizeSubGraph interface method)
 * Added a new ApplyBackendOptimizations function to apply the new
   changes
 * Added some new convenient constructors to the SubGraph class
 * Added AddLayer method and a pointer to the parent graph to the
   SubGraph class
 * Updated the sub-graph unit tests to match the changes
 * Added SelectSubGraphs and ReplaceSubGraphConnections overloads
   that work with sub-graphs
 * Removed unused code and minor refactoring where necessary

Change-Id: I46181794c6a9e3b10558944f804e06a8f693a6d0