IVGCVSW-2019 : replace Compute enum in the Layer object

Change-Id: I76551d511ef718eac36e5b8e5fe426ec3a402855

1 files changed, 18 insertions, 0 deletions

diff --git a/include/armnn/BackendId.hpp b/include/armnn/BackendId.hpp
index af3b7995eb..711833d64e 100644
--- a/include/armnn/BackendId.hpp
+++ b/include/armnn/BackendId.hpp
@@ -70,9 +70,12 @@ inline std::ostream& operator<<(std::ostream& os, const Compute& compute)
     return os;
 }
 
+struct UninitializedBackendId {};
+
 class BackendId final
 {
 public:
+    BackendId(UninitializedBackendId) { GetComputeDeviceAsCString(Compute::Undefined); }
     BackendId(const std::string& id) : m_Id{id} {}
     BackendId(const char* id) : m_Id{id} {}
 
@@ -102,6 +105,21 @@ public:
         return m_Id == other.m_Id;
     }
 
+    // comparison against objects from which the
+    // BackendId can be constructed
+    template <typename O>
+    bool operator==(const O& other) const
+    {
+        BackendId temp{other};
+        return *this == temp;
+    }
+
+    template <typename O>
+    bool operator!=(const O& other) const
+    {
+        return !(*this == other);
+    }
+
     bool operator<(const BackendId& other) const
     {
         return m_Id < other.m_Id;