Index: compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_flags_test.cc
===================================================================
--- compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_flags_test.cc
+++ compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_flags_test.cc
@@ -33,6 +33,9 @@
   parser.ParseString(env);
 
   EXPECT_EQ(final_value, flag);
+
+  // Reporting unrecognized flags is needed to reset them.
+  ReportUnrecognizedFlags();
 }
 
 template <>