1 files changed, 0 insertions, 50 deletions
diff --git a/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange64.c b/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange64.c
deleted file mode 100644
index 73af6ef91a..0000000000
--- a/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange64.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/** @file
-  InterlockedCompareExchange64 function
-
-  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
-  This program and the accompanying materials
-  are licensed and made available under the terms and conditions of the BSD License
-  which accompanies this distribution.  The full text of the license may be found at
-  http://opensource.org/licenses/bsd-license.php.
-
-  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-
-
-
-/**
-  Performs an atomic compare exchange operation on a 64-bit unsigned integer.
-
-  Performs an atomic compare exchange operation on the 64-bit unsigned integer specified
-  by Value.  If Value is equal to CompareValue, then Value is set to ExchangeValue and
-  CompareValue is returned.  If Value is not equal to CompareValue, then Value is returned.
-  The compare exchange operation must be performed using MP safe mechanisms.
-
-  @param  Value         A pointer to the 64-bit value for the compare exchange
-                        operation.
-  @param  CompareValue  A 64-bit value used in a compare operation.
-  @param  ExchangeValue A 64-bit value used in an exchange operation.
-
-  @return The original *Value before exchange.
-
-**/
-UINT64
-EFIAPI
-InternalSyncCompareExchange64 (
-  IN      UINT64                    *Value,
-  IN      UINT64                    CompareValue,
-  IN      UINT64                    ExchangeValue
-  )
-{
-  _asm {
-    mov     esi, Value
-    mov     eax, dword ptr [CompareValue + 0]
-    mov     edx, dword ptr [CompareValue + 4]
-    mov     ebx, dword ptr [ExchangeValue + 0]
-    mov     ecx, dword ptr [ExchangeValue + 4]
-    lock    cmpxchg8b   qword ptr [esi]
-  }
-}