build/cmake: Switch to using llvm-build computed dependencies.

- I verified locally that the current dependency lists are identical.
 - This makes add_llvm_library_dependencies() a no-op. I'll remove it once this
   change passes the bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145355 91177308-0d34-0410-b5e6-96231b3b80d8

cmake/modules/AddLLVM.cmake

@@ -25,15 +25,17 @@ macro(add_llvm_library name)
       ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
   endif()
   set_target_properties(${name} PROPERTIES FOLDER "Libraries")
+
+  # Add the explicit dependency information for this library.
+  #
+  # It would be nice to verify that we have the dependencies for this library
+  # name, but using get_property(... SET) doesn't suffice to determine if a
+  # property has been set to an empty value.
+  get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
+  target_link_libraries(${name} ${lib_deps})
 endmacro(add_llvm_library name)
 
 macro(add_llvm_library_dependencies name)
-  # Save the dependencies of the LLVM library in a variable so that we can
-  # query it when resolve llvm-config-style component -> library mappings.
-  set_property(GLOBAL PROPERTY LLVM_LIB_DEPS_${name} ${ARGN})
-
-  # Then add the actual dependencies to the library target.
-  target_link_libraries(${name} ${ARGN})
 endmacro(add_llvm_library_dependencies name)
 
 macro(add_llvm_loadable_module name)

cmake/modules/CMakeLists.txt

@@ -4,9 +4,9 @@ set(LLVM_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
 get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS)
 
 foreach(lib ${llvm_libs})
-  get_property(llvm_lib_deps GLOBAL PROPERTY LLVM_LIB_DEPS_${lib})
+  get_property(llvm_lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib})
   set(all_llvm_lib_deps
-    "${all_llvm_lib_deps}\nset_property(GLOBAL PROPERTY LLVM_LIB_DEPS_${lib} ${llvm_lib_deps})")
+    "${all_llvm_lib_deps}\nset_property(GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib} ${llvm_lib_deps})")
 endforeach(lib)
 
 configure_file(

cmake/modules/LLVM-Config.cmake

@@ -152,7 +152,7 @@ function(explicit_map_components_to_libraries out_libs)
   set(processed)
   while( cursor LESS lst_size )
     list(GET expanded_components ${cursor} lib)
-    get_property(lib_deps GLOBAL PROPERTY LLVM_LIB_DEPS_${lib})
+    get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib})
     list(APPEND expanded_components ${lib_deps})
     # Remove duplicates at the front:
     list(REVERSE expanded_components)