diff --git a/src/llvm b/src/llvm
index 08a3bd96ee6..c9ffab392a3 160000
--- a/src/llvm
+++ b/src/llvm
@@ -1 +1 @@
-Subproject commit 08a3bd96ee6e1d141494f0014ede75d9871114c4
+Subproject commit c9ffab392a39eb85f2f15ffc8d41e8c4f4397b8e
diff --git a/src/rustllvm/llvm-auto-clean-trigger b/src/rustllvm/llvm-auto-clean-trigger
index 1e7dda522af..3968fee7077 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.
-2013-09-01
+2013-09-11