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