dotnet · jkotas · Sep 22, 2025 · Sep 19, 2025 · Sep 19, 2025 · Sep 19, 2025
diff --git a/src/libraries/System.Private.CoreLib/src/System/Random.cs b/src/libraries/System.Private.CoreLib/src/System/Random.cs
@@ -369,7 +369,7 @@ public void Shuffle<T>(Span<T> values)
             {
                 int j = Next(i, n);
 
-                if (j != i)
+                if (Unsafe.SizeOf<T>() <= 16 || j != i)
                 {
                     T temp = values[i];
                     values[i] = values[j];