1 // RUN: %clang_dfsan %s -o %t && %run %t
2 //
3 // REQUIRES: x86_64-target-arch
4 
5 // Tests that labels are propagated through loads and stores.
6 
7 #include <sanitizer/dfsan_interface.h>
8 #include <assert.h>
9 
main(void)10 int main(void) {
11   int i = 1;
12   dfsan_label i_label = 1;
13   dfsan_set_label(i_label, &i, sizeof(i));
14 
15   dfsan_label new_label = dfsan_get_label(i);
16   assert(i_label == new_label);
17 
18   dfsan_label read_label = dfsan_read_label(&i, sizeof(i));
19   assert(i_label == read_label);
20 
21   dfsan_label j_label = 2;
22   dfsan_add_label(j_label, &i, sizeof(i));
23 
24   read_label = dfsan_read_label(&i, sizeof(i));
25   assert(dfsan_has_label(read_label, i_label));
26   assert(dfsan_has_label(read_label, j_label));
27 
28   return 0;
29 }
30