[CMake] Add top-level install-compiler-rt target

This is a wrapper target of all the component install targets. This wrapper target will be used by the new LLVM runtimes directory to connect top-level targets to the runtime project target.

llvm-svn: 279333
diff --git a/compiler-rt/cmake/Modules/AddCompilerRT.cmake b/compiler-rt/cmake/Modules/AddCompilerRT.cmake
index 3342248..022c1b7 100644
--- a/compiler-rt/cmake/Modules/AddCompilerRT.cmake
+++ b/compiler-rt/cmake/Modules/AddCompilerRT.cmake
@@ -164,6 +164,7 @@
                                 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
       set_target_properties(install-${LIB_PARENT_TARGET} PROPERTIES
                             FOLDER "Compiler-RT Misc")
+      add_dependencies(install-compiler-rt install-${LIB_PARENT_TARGET})
     endif()
   endif()
 
diff --git a/compiler-rt/cmake/base-config-ix.cmake b/compiler-rt/cmake/base-config-ix.cmake
index 4f3976d..830e443 100644
--- a/compiler-rt/cmake/base-config-ix.cmake
+++ b/compiler-rt/cmake/base-config-ix.cmake
@@ -8,6 +8,7 @@
 
 # Top level target used to build all compiler-rt libraries.
 add_custom_target(compiler-rt ALL)
+add_custom_target(install-compiler-rt)
 set_target_properties(compiler-rt PROPERTIES FOLDER "Compiler-RT Misc")
 
 # Setting these variables from an LLVM build is sufficient that compiler-rt can