Index: cmake/modules/AddClang.cmake
===================================================================
--- cmake/modules/AddClang.cmake
+++ cmake/modules/AddClang.cmake
@@ -104,11 +104,9 @@
         RUNTIME DESTINATION bin)
 
       if (${ARG_SHARED} AND NOT CMAKE_CONFIGURATION_TYPES)
-        add_custom_target(install-${name}
-                          DEPENDS ${name}
-                          COMMAND "${CMAKE_COMMAND}"
-                                  -DCMAKE_INSTALL_COMPONENT=${name}
-                                  -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+        add_llvm_install_targets(install-${name}
+                                 DEPENDS ${name}
+                                 COMPONENT ${name})
       endif()
     endif()
     set_property(GLOBAL APPEND PROPERTY CLANG_EXPORTS ${name})
@@ -147,11 +145,9 @@
       COMPONENT ${name})
 
     if(NOT CMAKE_CONFIGURATION_TYPES)
-      add_custom_target(install-${name}
-        DEPENDS ${name}
-        COMMAND "${CMAKE_COMMAND}"
-        -DCMAKE_INSTALL_COMPONENT=${name}
-        -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+      add_llvm_install_targets(install-${name}
+                               DEPENDS ${name}
+                               COMPONENT ${name})
     endif()
     set_property(GLOBAL APPEND PROPERTY CLANG_EXPORTS ${name})
   endif()
Index: lib/Headers/CMakeLists.txt
===================================================================
--- lib/Headers/CMakeLists.txt
+++ lib/Headers/CMakeLists.txt
@@ -141,9 +141,7 @@
   DESTINATION lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include/cuda_wrappers)
 
 if (NOT CMAKE_CONFIGURATION_TYPES) # don't add this for IDE's.
-  add_custom_target(install-clang-headers
-    DEPENDS clang-headers
-    COMMAND "${CMAKE_COMMAND}"
-            -DCMAKE_INSTALL_COMPONENT=clang-headers
-            -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+  add_llvm_install_targets(install-clang-headers
+                           DEPENDS clang-headers
+                           COMPONENT clang-headers)
 endif()
Index: runtime/CMakeLists.txt
===================================================================
--- runtime/CMakeLists.txt
+++ runtime/CMakeLists.txt
@@ -101,12 +101,9 @@
   install(CODE "execute_process\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -P ${BINARY_DIR}/cmake_install.cmake \)"
     COMPONENT compiler-rt)
 
-  add_custom_target(install-compiler-rt
-                    DEPENDS compiler-rt
-                    COMMAND "${CMAKE_COMMAND}"
-                             -DCMAKE_INSTALL_COMPONENT=compiler-rt
-                             -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
-                    USES_TERMINAL)
+  add_llvm_install_targets(install-compiler-rt
+                           DEPENDS compiler-rt
+                           COMPONENT compiler-rt)
 
   # Add top-level targets that build specific compiler-rt runtimes.
   set(COMPILER_RT_RUNTIMES fuzzer asan builtins dfsan lsan msan profile tsan ubsan ubsan-minimal)
Index: tools/c-index-test/CMakeLists.txt
===================================================================
--- tools/c-index-test/CMakeLists.txt
+++ tools/c-index-test/CMakeLists.txt
@@ -56,10 +56,8 @@
     COMPONENT c-index-test)
 
   if (NOT CMAKE_CONFIGURATION_TYPES) # don't add this for IDE's.
-    add_custom_target(install-c-index-test
-      DEPENDS c-index-test
-      COMMAND "${CMAKE_COMMAND}"
-              -DCMAKE_INSTALL_COMPONENT=c-index-test
-              -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+    add_llvm_install_targets(install-c-index-test
+                             DEPENDS c-index-test
+                             COMPONENT c-index-test)
   endif()
 endif()
Index: tools/libclang/CMakeLists.txt
===================================================================
--- tools/libclang/CMakeLists.txt
+++ tools/libclang/CMakeLists.txt
@@ -148,9 +148,6 @@
 set_target_properties(libclang-headers PROPERTIES FOLDER "Misc")
 
 if (NOT CMAKE_CONFIGURATION_TYPES) # don't add this for IDE's.
-  add_custom_target(install-libclang-headers
-    DEPENDS
-    COMMAND "${CMAKE_COMMAND}"
-            -DCMAKE_INSTALL_COMPONENT=libclang-headers
-            -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+  add_llvm_install_targets(install-libclang-headers
+                           COMPONENT libclang-headers)
 endif()