1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ubsan/pr81209.C b/gcc/testsuite/g++.dg/ubsan/pr81209.C
new file mode 100644
index 00000000000..3f2a5768907
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ubsan/pr81209.C
@@ -0,0 +1,21 @@
+// PR sanitizer/81209
+// { dg-do compile }
+// { dg-options "-fsanitize=undefined -fno-declone-ctor-dtor" }
+
+#ifdef __SIZEOF_INT128__
+typedef __int128 T;
+#else
+typedef long long int T;
+#endif
+
+struct B {};
+struct A : virtual public B
+{
+  A (long);
+  T a;
+};
+
+A::A (long c)
+{
+  long b = a % c;
+}