Support BFloat16 in Eigen
diff --git a/test/numext.cpp b/test/numext.cpp
index 8c6447d..ff4d13f 100644
--- a/test/numext.cpp
+++ b/test/numext.cpp
@@ -45,6 +45,7 @@
   CALL_SUBTEST( check_abs<long>() );
   CALL_SUBTEST( check_abs<unsigned long>() );
   CALL_SUBTEST( check_abs<half>() );
+  CALL_SUBTEST( check_abs<bfloat16>() );
   CALL_SUBTEST( check_abs<float>() );
   CALL_SUBTEST( check_abs<double>() );
   CALL_SUBTEST( check_abs<long double>() );