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

   1 /* { dg-do run } */
   2 /* { dg-additional-options "-mtune=pentiumpro" { target ia32 } } */
   3 /* { dg-additional-options "-minline-all-stringops" { target { i?86-*-* x86_64-*-* } } } */
   4
   5 static void __attribute__((noinline, noclone))
   6 my_memcpy (char *dest, const char *src, int n)
   7 {
   8   __builtin_memcpy (dest, src, n);
   9 }
  10
  11 int
  12 main (void)
  13 {
  14   char a1[4], a2[4];
  15   __builtin_memset (a1, 'a', 4);
  16   __builtin_memset (a2, 'b', 4);
  17   my_memcpy (a2, a1, 4);
  18   if (a2[0] != 'a')
  19     __builtin_abort ();
  20   return 0;
  21 }
  22