1 files changed, 17 insertions, 0 deletions
diff --git a/test/Feature/ubsan/ubsan_builtin.c b/test/Feature/ubsan/ubsan_builtin.c
new file mode 100644
index 00000000..85cf02a8
--- /dev/null
+++ b/test/Feature/ubsan/ubsan_builtin.c
@@ -0,0 +1,17 @@
+// REQUIRES: geq-llvm-6.0
+//
+// RUN: %clang %s -fsanitize=builtin -w -emit-llvm -g %O0opt -c -o %t.bc
+// RUN: rm -rf %t.klee-out
+// RUN: %klee --output-dir=%t.klee-out --emit-all-errors --ubsan-runtime %t.bc 2>&1 | FileCheck %s
+
+#include "klee/klee.h"
+
+int main() {
+  signed int x;
+
+  klee_make_symbolic(&x, sizeof(x), "x");
+
+  // CHECK: runtime/Sanitizer/ubsan/ubsan_handlers.cpp:35: invalid-builtin-use
+  __builtin_ctz(x);
+  return 0;
+}