Support UBSan-enabled binaries

1 files changed, 22 insertions, 0 deletions

diff --git a/test/Feature/ubsan/ubsan_enum.c b/test/Feature/ubsan/ubsan_enum.c
new file mode 100644
index 00000000..d6422fcb
--- /dev/null
+++ b/test/Feature/ubsan/ubsan_enum.c
@@ -0,0 +1,22 @@
+// RUN: %clangxx %s -fsanitize=enum -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"
+
+enum E { a = 1 } e;
+
+int main() {
+  unsigned char x;
+  volatile bool result;
+
+  klee_make_symbolic(&x, sizeof(x), "x");
+
+  for (unsigned char *p = (unsigned char *)&e; p != (unsigned char *)(&e + 1); ++p)
+    *p = x;
+
+  // CHECK: runtime/Sanitizer/ubsan/ubsan_handlers.cpp:35: load invalid value
+  result = (int)e != -1;
+
+  return 0;
+}