Pirama Arumuga Nainar | 7c91505 | 2015-04-08 08:58:29 -0700 | [diff] [blame] | 1 | // RUN: %clang_dfsan %s -o %t && %run %t |
| 2 | // RUN: %clang_dfsan -mllvm -dfsan-args-abi %s -o %t && %run %t |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 3 | |
| 4 | // Tests that labels are propagated through computation and that union labels |
| 5 | // are properly created. |
| 6 | |
| 7 | #include <sanitizer/dfsan_interface.h> |
| 8 | #include <assert.h> |
| 9 | |
| 10 | int main(void) { |
| 11 | assert(dfsan_union(0, 0) == 0); |
| 12 | |
| 13 | int i = 1; |
| 14 | dfsan_label i_label = dfsan_create_label("i", 0); |
| 15 | dfsan_set_label(i_label, &i, sizeof(i)); |
| 16 | |
| 17 | int j = 2; |
| 18 | dfsan_label j_label = dfsan_create_label("j", 0); |
| 19 | dfsan_set_label(j_label, &j, sizeof(j)); |
| 20 | |
| 21 | int k = 3; |
| 22 | dfsan_label k_label = dfsan_create_label("k", 0); |
| 23 | dfsan_set_label(k_label, &k, sizeof(k)); |
| 24 | |
| 25 | int k2 = 4; |
| 26 | dfsan_set_label(k_label, &k2, sizeof(k2)); |
| 27 | |
| 28 | dfsan_label ij_label = dfsan_get_label(i + j); |
| 29 | assert(dfsan_has_label(ij_label, i_label)); |
| 30 | assert(dfsan_has_label(ij_label, j_label)); |
| 31 | assert(!dfsan_has_label(ij_label, k_label)); |
| 32 | // Test uniquing. |
| 33 | assert(dfsan_union(i_label, j_label) == ij_label); |
| 34 | assert(dfsan_union(j_label, i_label) == ij_label); |
| 35 | |
| 36 | dfsan_label ijk_label = dfsan_get_label(i + j + k); |
| 37 | assert(dfsan_has_label(ijk_label, i_label)); |
| 38 | assert(dfsan_has_label(ijk_label, j_label)); |
| 39 | assert(dfsan_has_label(ijk_label, k_label)); |
| 40 | |
| 41 | assert(dfsan_get_label(k + k2) == k_label); |
| 42 | |
| 43 | struct { int i, j; } s = { i, j }; |
| 44 | assert(dfsan_read_label(&s, sizeof(s)) == ij_label); |
| 45 | |
| 46 | return 0; |
| 47 | } |