Index: llvm/trunk/cmake/modules/CheckAtomic.cmake
===================================================================
--- llvm/trunk/cmake/modules/CheckAtomic.cmake
+++ llvm/trunk/cmake/modules/CheckAtomic.cmake
@@ -81,7 +81,6 @@
 ## assumes C++11 <atomic> works.
 CHECK_CXX_SOURCE_COMPILES("
 #ifdef _MSC_VER
-#include <Intrin.h> /* Workaround for PR19898. */
 #include <windows.h>
 #endif
 int main() {