Support UBSan-enabled binaries

1 files changed, 22 insertions, 0 deletions

diff --git a/test/Feature/ubsan/ubsan_implicit_signed_integer_truncation.c b/test/Feature/ubsan/ubsan_implicit_signed_integer_truncation.c
new file mode 100644
index 00000000..3d6ffcd1
--- /dev/null
+++ b/test/Feature/ubsan/ubsan_implicit_signed_integer_truncation.c
@@ -0,0 +1,22 @@
+// REQUIRES: geq-llvm-8.0
+
+// RUN: %clang %s -fsanitize=implicit-signed-integer-truncation -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"
+
+unsigned char convert_signed_int_to_unsigned_char(signed int x) {
+  // CHECK: runtime/Sanitizer/ubsan/ubsan_handlers.cpp:35: implicit-signed-integer-truncation
+  return x;
+}
+
+int main() {
+  signed int x;
+  volatile unsigned char result;
+
+  klee_make_symbolic(&x, sizeof(x), "x");
+
+  result = convert_signed_int_to_unsigned_char(x);
+  return 0;
+}
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