diff --git a/src/llvm b/src/llvm
index ec1fdb3b9d3b1..b820135911e17 160000
--- a/src/llvm
+++ b/src/llvm
@@ -1 +1 @@
-Subproject commit ec1fdb3b9d3b1fb9e1dae97a65dd3a13db9bfb23
+Subproject commit b820135911e17c7a46b901db56baa48e5155bf46
diff --git a/src/rustllvm/llvm-auto-clean-trigger b/src/rustllvm/llvm-auto-clean-trigger
index 4a16b9c257cbe..9dd66ac0a3059 100644
--- a/src/rustllvm/llvm-auto-clean-trigger
+++ b/src/rustllvm/llvm-auto-clean-trigger
@@ -1,4 +1,4 @@
 # If this file is modified, then llvm will be forcibly cleaned and then rebuilt.
 # The actual contents of this file do not matter, but to trigger a change on the
 # build bots then the contents should be changed so git updates the mtime.
-2015-01-13
+2015-01-18