1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
       3  
       4  void foo(char *);
       5  void my_memcpy (void *q, unsigned int n)
       6  {
       7    unsigned i;
       8    char p[1024];
       9    for (i = 0; i < n; ++i)
      10      ((char *)p)[i] = ((char *)q)[i];
      11    foo(p);
      12  }
      13  
      14  struct S { int i; int j; };
      15  
      16  void my_memcpy2 (void *q, unsigned int n)
      17  {
      18    unsigned i;
      19    char p[1024];
      20    for (i = 0; i < n; ++i)
      21      ((struct S *)p)[i] = ((struct S *)q)[i];
      22    foo(p);
      23  }
      24  
      25  char p[1024];
      26  void my_memmove (unsigned int n)
      27  {
      28    unsigned i;
      29    for (i = 0; i < n; ++i)
      30      p[i] = p[i+1];
      31    foo(p);
      32  }
      33  
      34  
      35  /* { dg-final { scan-tree-dump-times "generated memcpy" 2 "ldist" } } */
      36  /* { dg-final { scan-tree-dump-times "generated memmove" 1 "ldist" } } */