add CPUFusion to cpu::compile (#448)

src/ngraph/runtime/cpu/cpu_external_function.cpp

@@ -93,6 +93,7 @@
 #include "ngraph/runtime/cpu/cpu_emitter.hpp"
 #include "ngraph/runtime/cpu/cpu_external_function.hpp"
 #include "ngraph/runtime/cpu/ops/matmul_bias.hpp"
+#include "ngraph/runtime/cpu/pass/cpu_fusion.hpp"
 #include "ngraph/runtime/host_tensor_view.hpp"
 
 using namespace std;
@@ -223,6 +224,7 @@ void runtime::cpu::CPU_ExternalFunction::compile()
 
     pass::Manager pass_manager;
     // For now, just make everyone row-major.
+    pass_manager.register_pass<pass::CPUFusion>();
     pass_manager.register_pass<pass::AssignLayout<descriptor::layout::DenseTensorViewLayout>>();
     pass_manager.register_pass<pass::Liveness>();
     pass_manager.register_pass<pass::MemoryLayout>(64);