[CMake] Add atomic builtins to GENERIC_SOURCES list.

Reviewers: bogner, samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13069

llvm-svn: 248322
diff --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
index c32d164..b236bb9 100644
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -17,6 +17,12 @@
   ashlti3.c
   ashrdi3.c
   ashrti3.c
+  atomic_flag_clear.c
+  atomic_flag_clear_explicit.c
+  atomic_flag_test_and_set.c
+  atomic_flag_test_and_set_explicit.c
+  atomic_signal_fence.c
+  atomic_thread_fence.c
   # FIXME: atomic.c may only be compiled if host compiler understands _Atomic
   # atomic.c
   clear_cache.c