Update compiler-rt

alexcrichton · alexcrichton · commit c1df86bb4683 · 2018-05-14T06:55:34.000-07:00
Pick up a PR we forgot to backport
diff --git a/compiler-rt b/compiler-rt
@@ -1 +1 @@
-Subproject commit dfd960b5f1a1751b22738fa34fd27b583f4618db
+Subproject commit 54d95ca0bd603c322601a61255898e2b8d2a3cae
