Support UBSan-enabled binaries

1 files changed, 21 insertions, 0 deletions

diff --git a/test/Feature/ubsan/ubsan_alignment-assumption_with_offset.c b/test/Feature/ubsan/ubsan_alignment-assumption_with_offset.c
new file mode 100644
index 00000000..587c5108
--- /dev/null
+++ b/test/Feature/ubsan/ubsan_alignment-assumption_with_offset.c
@@ -0,0 +1,21 @@
+// REQUIRES: geq-llvm-8.0
+
+// RUN: %clang %s -fsanitize=alignment -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"
+#include <stdlib.h>
+
+int main() {
+  size_t address;
+
+  klee_make_symbolic(&address, sizeof(address), "address");
+
+  char *ptr = (char *)address;
+
+  // CHECK: runtime/Sanitizer/ubsan/ubsan_handlers.cpp:35: alignment-assumption
+  __builtin_assume_aligned(ptr, 0x8000, 1);
+
+  return 0;
+}