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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3 /* { dg-final { scan-tree-dump-times "memmove" 0 "optimized" } } */
   4 /* { dg-final { cleanup-tree-dump "optimized" } } */
   5
   6 char a[40];
   7 extern void bar (char *);
   8
   9 void
  10 foo (void)
  11 {
  12   char b[10];
  13   __builtin_memmove (&a[0], &a[20], 20);
  14   __builtin_memmove (&b[1], &a[25], 9);
  15   bar (b);
  16 }