diff --git a/src/llvm b/src/llvm
index 874dc4ee4cb78..168f91ce5cbf8 160000
--- a/src/llvm
+++ b/src/llvm
@@ -1 +1 @@
-Subproject commit 874dc4ee4cb782056469f003831bcda3e4cdf0df
+Subproject commit 168f91ce5cbf8933e47f339911f0f46a48714852
diff --git a/src/rustllvm/llvm-auto-clean-trigger b/src/rustllvm/llvm-auto-clean-trigger
index dc0fbf6bf94ea..094d485da6af5 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.
-2015-06-30
+2015-09-02