cmake: Use MSVC atomics with clang-cl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231022 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/modules/CheckAtomic.cmake b/cmake/modules/CheckAtomic.cmake
index 30a5e3112927ed4c27361138724a6cea55412699..a03788ec9f93bca00893cdb31fc46b232a3334bc 100644 (file)
--- a/cmake/modules/CheckAtomic.cmake
+++ b/cmake/modules/CheckAtomic.cmake
@@ -13,6 +13,7 @@ endif()
 
 CHECK_CXX_SOURCE_COMPILES("
 #ifdef _MSC_VER
+#include <Intrin.h> /* Workaround for PR19898. */
 #include <windows.h>
 #endif
 int main() {