gcc/testsuite/gcc.dg/pr99578-3.c

   1 /* PR middle-end/99578 */
   2 /* { dg-do compile { target size32plus } } */
   3 /* { dg-options "-O2 -Wstringop-overread" } */
   4
   5 struct S { unsigned int s; };
   6 extern struct S v;
   7 extern void *memcpy (void *, const void *, __SIZE_TYPE__);
   8
   9 void
  10 foo (void)
  11 {
  12   memcpy (&v, (void *)(0xe8ffc000), sizeof (struct S)); /* { dg-bogus "from a region of size 0" } */
  13 }