diff --git a/src/llvm b/src/llvm
index be89e4b532fba..63f3a1bfcd783 160000
--- a/src/llvm
+++ b/src/llvm
@@ -1 +1 @@
-Subproject commit be89e4b532fba8544f629c257460b63fe26c680d
+Subproject commit 63f3a1bfcd78355398a460712db25922247756b6
diff --git a/src/rustllvm/llvm-auto-clean-trigger b/src/rustllvm/llvm-auto-clean-trigger
index c6b01def198ad..502ac53978e22 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.
-2016-03-13
+2016-03-15