1// RUN: %clang_dfsan -m64 %s -o %t && %run %t
2// RUN: %clang_dfsan -mllvm -dfsan-args-abi -m64 %s -o %t && %run %t
3
4// Tests that labels are propagated through loads and stores.
5
6#include <sanitizer/dfsan_interface.h>
7#include <assert.h>
8
9int main(void) {
10  int i = 1;
11  dfsan_label i_label = dfsan_create_label("i", 0);
12  dfsan_set_label(i_label, &i, sizeof(i));
13
14  dfsan_label new_label = dfsan_get_label(i);
15  assert(i_label == new_label);
16
17  dfsan_label read_label = dfsan_read_label(&i, sizeof(i));
18  assert(i_label == read_label);
19
20  dfsan_label j_label = dfsan_create_label("j", 0);
21  dfsan_add_label(j_label, &i, sizeof(i));
22
23  read_label = dfsan_read_label(&i, sizeof(i));
24  assert(dfsan_has_label(read_label, i_label));
25  assert(dfsan_has_label(read_label, j_label));
26
27  return 0;
28}
29