1 files changed, 25 insertions, 0 deletions
diff --git a/test/Feature/ubsan/ubsan_unsigned_shift_base.c b/test/Feature/ubsan/ubsan_unsigned_shift_base.c
new file mode 100644
index 00000000..d08bfe16
--- /dev/null
+++ b/test/Feature/ubsan/ubsan_unsigned_shift_base.c
@@ -0,0 +1,25 @@
+// REQUIRES: geq-llvm-12.0
+
+// RUN: %clang %s -fsanitize=unsigned-shift-base -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 lsh_overflow(unsigned int a, unsigned int b) {
+  // CHECK: runtime/Sanitizer/ubsan/ubsan_handlers.cpp:35: shift out of bounds
+  return a << b;
+}
+
+int main() {
+  unsigned int a;
+  unsigned int b;
+  volatile unsigned int result;
+
+  klee_make_symbolic(&a, sizeof(a), "a");
+  klee_make_symbolic(&b, sizeof(b), "b");
+
+  result = lsh_overflow(a, b);
+
+  return 0;
+}