gcc/testsuite/gcc.dg/tree-ssa/alias-26.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 void f (const char *c, int *i)
   5 {
   6   *i = 42;
   7   __builtin_memcpy (i - 1, c, sizeof (int));
   8   if (*i != 42) __builtin_abort();
   9 }
  10
  11 /* { dg-final { scan-tree-dump-not "abort" "optimized" } } */
  12