| 1 | // RUN: %clang_msan %s -o %t |
| 2 | // RUN: env MSAN_OPTIONS=intercept_strcmp=false %run %t 2>&1 |
| 3 | // RUN: env MSAN_OPTIONS=intercept_strcmp=true not %run %t 2>&1 | FileCheck %s |
| 4 | // RUN: not %run %t 2>&1 | FileCheck %s |
| 5 | |
| 6 | #include <assert.h> |
| 7 | #include <stdlib.h> |
| 8 | #include <string.h> |
| 9 | |
| 10 | int main(int argc, char **argv) { |
| 11 | char undef; |
| 12 | char s1[] = "abcd" ; |
| 13 | char s2[] = "1234" ; |
| 14 | assert(strcmp(s1, s2) > 0); |
| 15 | s2[0] = undef; |
| 16 | assert(strcmp(s1, s2)); |
| 17 | |
| 18 | // CHECK: {{.*WARNING: MemorySanitizer: use-of-uninitialized-value}} |
| 19 | return 0; |
| 20 | } |
| 21 | |