From af1ae1f939964746f393904a1254c5bd5bf219a6 Mon Sep 17 00:00:00 2001
From: AsboAns <ansbalin@gmail.com>
Date: Sat, 18 Jan 2025 01:02:35 +0000
Subject: [PATCH] Fix size used for vectorization check in BitArray (#111558)

---
 .../System.Collections/src/System/Collections/BitArray.cs       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libraries/System.Collections/src/System/Collections/BitArray.cs b/src/libraries/System.Collections/src/System/Collections/BitArray.cs
index 1fd6e46490ebf9..80491afd598304 100644
--- a/src/libraries/System.Collections/src/System/Collections/BitArray.cs
+++ b/src/libraries/System.Collections/src/System/Collections/BitArray.cs
@@ -885,7 +885,7 @@ public unsafe void CopyTo(Array array, int index)
                         }
                     }
                 }
-                else if (Ssse3.IsSupported && ((uint)m_length >= Vector512<byte>.Count * 2u))
+                else if (Ssse3.IsSupported && ((uint)m_length >= Vector128<byte>.Count * 2u))
                 {
                     Vector128<byte> lowerShuffleMask = lowerShuffleMask_CopyToBoolArray;
                     Vector128<byte> upperShuffleMask = upperShuffleMask_CopyToBoolArray;