diff --git a/src/llvm b/src/llvm
index 8cbcdf1b72e1..874dc4ee4cb7 160000
--- a/src/llvm
+++ b/src/llvm
@@ -1 +1 @@
-Subproject commit 8cbcdf1b72e1b23679646f6faca265f76b20d379
+Subproject commit 874dc4ee4cb782056469f003831bcda3e4cdf0df
diff --git a/src/rustllvm/llvm-auto-clean-trigger b/src/rustllvm/llvm-auto-clean-trigger
index 38b7b49a3443..dc0fbf6bf94e 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.
-2015-06-16
+2015-06-30