1// RUN: %clang_dfsan %s -o %t && %run %t
2// RUN: %clang_dfsan -mllvm -dfsan-args-abi %s -o %t && %run %t
3//
4// REQUIRES: x86_64-target-arch
5
6// Tests that labels are propagated through loads and stores.
7
8#include <sanitizer/dfsan_interface.h>
9#include <assert.h>
10
11int main(void) {
12 int i = 1;
13 dfsan_label i_label = dfsan_create_label("i", 0);
14 dfsan_set_label(i_label, &i, sizeof(i));
15
16 dfsan_label new_label = dfsan_get_label(i);
17 assert(i_label == new_label);
18
19 dfsan_label read_label = dfsan_read_label(&i, sizeof(i));
20 assert(i_label == read_label);
21
22 dfsan_label j_label = dfsan_create_label("j", 0);
23 dfsan_add_label(j_label, &i, sizeof(i));
24
25 read_label = dfsan_read_label(&i, sizeof(i));
26 assert(dfsan_has_label(read_label, i_label));
27 assert(dfsan_has_label(read_label, j_label));
28
29 return 0;
30}
31