update submodules
diff --git a/clang b/clang
index 436afdb..fa7ecf9 160000
--- a/clang
+++ b/clang
@@ -1 +1 @@
-Subproject commit 436afdb285bcdfa746661fc19a667419881059af
+Subproject commit fa7ecf920a253529a39572fd3738dba79f81ec02
diff --git a/llvm b/llvm
index 20fef3d..ec9231b 160000
--- a/llvm
+++ b/llvm
@@ -1 +1 @@
-Subproject commit 20fef3d710e448f67fb42b739ad3efe33bb3791d
+Subproject commit ec9231b4baef60c23d26dfc144ba136f188f4325