diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000000..8b0b1c7a3d5
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "src/llvm"]
+	path = src/llvm
+	url = http://llvm.org/git/llvm.git
diff --git a/src/llvm b/src/llvm
new file mode 160000
index 00000000000..566f233ba64
--- /dev/null
+++ b/src/llvm
@@ -0,0 +1 @@
+Subproject commit 566f233ba64c0bb2773b5717cb18753c7564f4b7