gcc/testsuite/gcc.dg/memset-2.c

   1 /* PR target/63937 */
   2 /* { dg-do compile { target lp64 } } */
   3 /* { dg-options "-O2" } */
   4
   5 void
   6 foo (char *p)
   7 {
   8   p = __builtin_assume_aligned (p, 64);
   9   __builtin_memset (p, 0, 0x100000001ULL);
  10 }
  11