Index: cmake/modules/TableGen.cmake
===================================================================
--- cmake/modules/TableGen.cmake
+++ cmake/modules/TableGen.cmake
@@ -165,6 +165,9 @@
         COMMENT "Building native TableGen..."
         USES_TERMINAL)
       add_custom_target(${project}-tablegen-host DEPENDS ${${project}_TABLEGEN_EXE})
+      if (${project} STREQUAL CLANG)
+        add_dependencies(CLANG-tablegen-host LLVM-tablegen-host)
+      endif()
       set(${project}_TABLEGEN_TARGET ${project}-tablegen-host PARENT_SCOPE)
     endif()
   endif()