gcc/testsuite/gcc.c-torture/compile/memcpy-2.c

static const char OggFLAC__MAPPING_VERSION_MAJOR = 1;
void f(void)
{
  char synthetic_first_packet_body[10];
  char *b = synthetic_first_packet_body;
  b+=4u;
  __builtin_memcpy (b, &OggFLAC__MAPPING_VERSION_MAJOR, (1u));
}