1// RUN: %clangxx_msan -m64 -O0 %s -o %t && %run %t
2
3#include <assert.h>
4#include <errno.h>
5#include <stdio.h>
6#include <unistd.h>
7
8int main()
9{
10  int x;
11  int *volatile p = &x;
12  errno = *p;
13  int res = read(-1, 0, 0);
14  assert(res == -1);
15  if (errno) printf("errno %d\n", errno);
16  return 0;
17}
18