diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index cdfd0aec16..fe7fec76fc 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -621,6 +621,7 @@ add_RunCMake_test(ScriptMode)
 add_RunCMake_test(StandardLinkDirectories)
 add_RunCMake_test(Swift -DCMAKE_SYSTEM_NAME=${CMAKE_SYSTEM_NAME}
                         -DCMake_TEST_Swift=${CMake_TEST_Swift}
+                        -DCMAKE_Swift_COMPILER_VERSION=${CMAKE_Swift_COMPILER_VERSION}
                         -DXCODE_VERSION=${XCODE_VERSION})
 add_RunCMake_test(TargetArtifacts -DCMAKE_SYSTEM_NAME=${CMAKE_SYSTEM_NAME})
 add_RunCMake_test(TargetObjects)
diff --git a/Tests/RunCMake/Swift/RunCMakeTest.cmake b/Tests/RunCMake/Swift/RunCMakeTest.cmake
index d066a7a73f..f927e77ae8 100644
--- a/Tests/RunCMake/Swift/RunCMakeTest.cmake
+++ b/Tests/RunCMake/Swift/RunCMakeTest.cmake
@@ -74,6 +74,11 @@ block()
   endif()
 endblock()
 
+if(CMAKE_Swift_COMPILER_VERSION VERSION_GREATER_EQUAL 6.2
+    OR XCODE_VERSION VERSION_GREATER_EQUAL 26)
+  run_cmake(SwiftPtrSize)
+endif()
+
 if(RunCMake_GENERATOR MATCHES "Ninja")
   block()
     if (CMAKE_SYSTEM_NAME MATCHES "Windows")
diff --git a/Tests/RunCMake/Swift/SwiftPtrSize-stdout.txt b/Tests/RunCMake/Swift/SwiftPtrSize-stdout.txt
new file mode 100644
index 0000000000..6f94fbfc88
--- /dev/null
+++ b/Tests/RunCMake/Swift/SwiftPtrSize-stdout.txt
@@ -0,0 +1,2 @@
+-- CMAKE_Swift_SIZEOF_DATA_PTR='[1-9][0-9]*'
+-- CMAKE_SIZEOF_VOID_P='[1-9][0-9]*'
diff --git a/Tests/RunCMake/Swift/SwiftPtrSize.cmake b/Tests/RunCMake/Swift/SwiftPtrSize.cmake
new file mode 100644
index 0000000000..7b52d67150
--- /dev/null
+++ b/Tests/RunCMake/Swift/SwiftPtrSize.cmake
@@ -0,0 +1,4 @@
+enable_language(Swift)
+
+message(STATUS "CMAKE_Swift_SIZEOF_DATA_PTR='${CMAKE_Swift_SIZEOF_DATA_PTR}'")
+message(STATUS "CMAKE_SIZEOF_VOID_P='${CMAKE_SIZEOF_VOID_P}'")