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Author: benaadams

src/Common/src/CoreLib/System/Runtime/InteropServices/MemoryMarshal.cs

@@ -46,8 +46,9 @@ public static bool TryGetArray<T>(ReadOnlyMemory<T> readOnlyMemory, out ArraySeg
         public static bool TryGetOwnedMemory<T, TOwner>(ReadOnlyMemory<T> readOnlyMemory, out TOwner ownedMemory)
             where TOwner : OwnedMemory<T>
         {
-            ownedMemory = readOnlyMemory._object as TOwner;
-            return !ReferenceEquals(ownedMemory, null);
+            TOwner owner; // Use register for null comparision rahter than byref
+            ownedMemory = owner = readOnlyMemory._object as TOwner;
+            return !ReferenceEquals(owner, null);
         }
 
         /// <summary>
@@ -57,8 +58,9 @@ public static bool TryGetOwnedMemory<T, TOwner>(ReadOnlyMemory<T> readOnlyMemory
         public static bool TryGetOwnedMemory<T, TOwner>(ReadOnlyMemory<T> readOnlyMemory, out TOwner ownedMemory, out int index, out int length)
            where TOwner : OwnedMemory<T>
         {
-            ownedMemory = readOnlyMemory._object as TOwner;
-            if (!ReferenceEquals(ownedMemory, null))
+            TOwner owner; // Use register for null comparision rahter than byref
+            ownedMemory = owner = readOnlyMemory._object as TOwner;
+            if (!ReferenceEquals(owner, null))
             {
                 index = _index;
                 length = _length;