gcc/testsuite/gcc.dg/memcpy-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3 /* { dg-final { scan-tree-dump-times "nasty_local" 0 "optimized" } } */
   4 /* { dg-final { cleanup-tree-dump "optimized" } } */
   5 struct a {int a,b,c;} a;
   6 int test(struct a a)
   7 {
   8 struct a nasty_local;
   9 __builtin_memcpy (&nasty_local,&a, sizeof(a));
  10 return nasty_local.a;
  11 }