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 function calls.
7
8#include <sanitizer/dfsan_interface.h>
9#include <assert.h>
10
11int f(int x) {
12 int j = 2;
13 dfsan_label j_label = dfsan_create_label("j", 0);
14 dfsan_set_label(j_label, &j, sizeof(j));
15 return x + j;
16}
17
18int main(void) {
19 int i = 1;
20 dfsan_label i_label = dfsan_create_label("i", 0);
21 dfsan_set_label(i_label, &i, sizeof(i));
22
23 dfsan_label ij_label = dfsan_get_label(f(i));
24 assert(dfsan_has_label(ij_label, i_label));
25 assert(dfsan_has_label_with_desc(ij_label, "j"));
26
27 return 0;
28}
29