gcc/testsuite/gcc.target/i386/pr82002-1.c

/* { dg-do compile { target lp64 } } */
/* { dg-options "-Ofast -mstackrealign -mabi=ms" } */

void a (char *);
void
b ()
{
  char c[10000000000];
  c[1099511627776] = 'b';
  a (c);
  a (c);
}

// { dg-prune-output "\\\[-Wstringop-overflow" }