| Peter Collingbourne | eee71ae | 2013-08-07 22:47:26 +0000 | [diff] [blame] | 1 | // RUN: %clang_dfsan -m64 %s -o %t && %t |
| 2 | |
| 3 | // Tests that labels are propagated through computation and that union labels |
| 4 | // are properly created. |
| 5 | |
| 6 | #include <sanitizer/dfsan_interface.h> |
| 7 | #include <assert.h> |
| 8 | |
| 9 | int 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 | int j = 2; |
| 15 | dfsan_label j_label = dfsan_create_label("j", 0); |
| 16 | dfsan_set_label(j_label, &j, sizeof(j)); |
| 17 | |
| 18 | int k = 3; |
| 19 | dfsan_label k_label = dfsan_create_label("k", 0); |
| 20 | dfsan_set_label(k_label, &k, sizeof(k)); |
| 21 | |
| 22 | dfsan_label ij_label = dfsan_get_label(i + j); |
| 23 | assert(dfsan_has_label(ij_label, i_label)); |
| 24 | assert(dfsan_has_label(ij_label, j_label)); |
| 25 | assert(!dfsan_has_label(ij_label, k_label)); |
| 26 | |
| 27 | dfsan_label ijk_label = dfsan_get_label(i + j + k); |
| 28 | assert(dfsan_has_label(ijk_label, i_label)); |
| 29 | assert(dfsan_has_label(ijk_label, j_label)); |
| 30 | assert(dfsan_has_label(ijk_label, k_label)); |
| 31 | |
| 32 | return 0; |
| 33 | } |