Remove FreeBSD version from SDK triple

Author: michael-yuji

cmake/modules/SwiftConfigureSDK.cmake

@@ -427,7 +427,7 @@ macro(configure_sdk_unix name architectures)
         string(REGEX REPLACE "[-].*" "" freebsd_system_version ${CMAKE_SYSTEM_VERSION})
         message(STATUS "FreeBSD Version: ${freebsd_system_version}")
 
-        set(SWIFT_SDK_FREEBSD_ARCH_${arch}_TRIPLE "${arch}-unknown-freebsd${freebsd_system_version}")
+        set(SWIFT_SDK_FREEBSD_ARCH_${arch}_TRIPLE "${arch}-unknown-freebsd")
       elseif("${prefix}" STREQUAL "OPENBSD")
         if(NOT arch STREQUAL "x86_64" AND NOT arch STREQUAL "aarch64")
           message(FATAL_ERROR "unsupported arch for OpenBSD: ${arch}")

lib/Basic/Platform.cpp

@@ -414,6 +414,10 @@ llvm::Triple swift::getTargetSpecificModuleTriple(const llvm::Triple &triple) {
                         triple.getOSName(), environment);
   }
 
+  if (triple.isOSFreeBSD()) {
+    return swift::getUnversionedTriple(triple);
+  }
+
   // Other platforms get no normalization.
   return triple;
 }