1 // RUN: %clangxx_msan -O0 -g %s -o %t 2 // RUN: not %run %t 2>&1 | FileCheck %s 3 // RUN: MSAN_OPTIONS=intercept_memcmp=0 %run %t 4 5 #include <string.h> 6 #include <stdio.h> 7 int main(int argc, char **argv) { 8 char a1[4]; 9 char a2[4]; 10 for (int i = 0; i < argc * 3; i++) 11 a2[i] = a1[i] = i; 12 int res = memcmp(a1, a2, 4); 13 if (!res) 14 printf("equals"); 15 return 0; 16 // CHECK: Uninitialized bytes in __interceptor_memcmp at offset 3 17 // CHECK: MemorySanitizer: use-of-uninitialized-value 18 } 19
