diff --git a/testsuite/driver/config/testall.conf b/testsuite/driver/config/testall.conf
index a2d73d6d08f628344d0a4c0ca7c24e891380721a..f710a9475c66f18a9e8a51a0bc77ef113e47ad75 100644
--- a/testsuite/driver/config/testall.conf
+++ b/testsuite/driver/config/testall.conf
@@ -266,3 +266,7 @@
     java_test/rc_test/RC0515-GC-FrequentGCTest01: O2
     java_test/reflection_test/RT0199-rt-reflection-AnnotationPackageSetTest: O2
     java_test/thread_test/RT0094-rt-thread-ThreadStateyield: O2
+    c_test/sanity_test/SANITY0027-convert: CO0
+    c_test/sanity_test/SANITY0027-convert: CO2
+    c_test/sanity_test/SANITY0023-cc_sret: CO2
+    c_test/sanity_test/SANITY0023-cc_sret: CO0