IVGCVSW-6338 IMemoryOptimizerStrategy Create a wrapper validator strategy

 * Add validator wrapper
 * Add validation logic:
    Condition #1: All Memblocks have been assigned to a MemBin

    Condition #2: No Memblock is assigned to multiple MemBins

    Condition #3: No two Memblocks overlap in both the X and Y axis
                  Memblocks can overlap on the X axis for
                  SingleAxisPacking
                  Memblocks can overlap on the Y axis or
                  the X for MultiAxisPacking but not both

 * Add test strategies and tests for overlap, duplicates
   and unassigned blocks

Signed-off-by: Francis Murtagh <francis.murtagh@arm.com>
Change-Id: I7a779b35538ecf18a33b62b84512eba69eda1f86

1 files changed, 3 insertions, 3 deletions

diff --git a/include/armnn/backends/IMemoryOptimizerStrategy.hpp b/include/armnn/backends/IMemoryOptimizerStrategy.hpp
index ec6d838aae..ad5513f8a3 100644
--- a/include/armnn/backends/IMemoryOptimizerStrategy.hpp
+++ b/include/armnn/backends/IMemoryOptimizerStrategy.hpp
@@ -22,8 +22,8 @@ struct MemBlock
     const unsigned int m_StartOfLife; // Y start
     const unsigned int m_EndOfLife; // Y end
 
-    const size_t m_MemSize; // X start
-    size_t m_Offset; // X end
+    const size_t m_MemSize; // Offset + Memsize = X end
+    size_t m_Offset; // X start
 
     const unsigned int m_Index; // Index to keep order
 };
@@ -40,7 +40,7 @@ struct MemBin
 // A IMemoryOptimizerStrategy must ensure that
 // 1: All MemBlocks have been assigned to a MemBin
 // 2: No MemBlock is assigned to multiple MemBins
-// 3: No two MemBlocks in a MemBin overlap in the X dimension
+// 3: No two Memblocks in a MemBin overlap in both the X and Y axis
 //    (a strategy cannot change the y axis or length of a MemBlock)
 class IMemoryOptimizerStrategy
 {