1 | // RUN: %clang_msan %s -o %t |
2 | // RUN: MSAN_OPTIONS=intercept_strcmp=false %run %t 2>&1 |
3 | // RUN: 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 | |