update submodules
diff --git a/llvm b/llvm
index 5a4ec12..12061ae 160000
--- a/llvm
+++ b/llvm
@@ -1 +1 @@
-Subproject commit 5a4ec120f8ec90d9222d3b50f80ab7d01d4a68a6
+Subproject commit 12061ae7173af82bfd2cf25abaf3cb10fac61f50