diff --git a/core/clang/config.mk b/core/clang/config.mk
index 505d441..6da90ec 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -68,12 +68,15 @@
   -finline-functions \
   -finline-limit=64 \
   -fno-canonical-system-headers \
+  -Wno-clobbered \
+  -fno-devirtualize \
   -fno-tree-sra \
   -fprefetch-loop-arrays \
   -funswitch-loops \
   -Werror=unused-but-set-parameter \
   -Werror=unused-but-set-variable \
   -Wmaybe-uninitialized \
+  -Wno-error=clobbered \
   -Wno-error=maybe-uninitialized \
   -Wno-error=unused-but-set-parameter \
   -Wno-error=unused-but-set-variable \