gcc/testsuite/gcc.dg/tree-prof/stringop-1.c

   1 /* { dg-options "-O2 -fdump-tree-optimized -fdump-ipa-profile" } */
   2 int a[1000];
   3 int b[1000];
   4 int size=1;
   5 int max=10000;
   6 int
   7 main()
   8 {
   9   int i;
  10   for (i=0;i<max; i++)
  11     {
  12       __builtin_memcpy (a, b, size * sizeof (a[0]));
  13       asm("");
  14     }
  15    return 0;
  16 }
  17 /* autofdo doesn't support value profiling for now: */
  18 /* { dg-final-use-not-autofdo { scan-ipa-dump "Transformation done: single value 4 stringop" "profile"} } */
  19 /* Really this ought to simplify into assignment, but we are not there yet.  */
  20 /* a[0] = b[0] is what we fold the resulting memcpy into.  */
  21 /* { dg-final-use-not-autofdo { scan-tree-dump " = MEM.*&b" "optimized"} } */
  22 /* { dg-final-use-not-autofdo { scan-tree-dump "MEM.*&a\\\] = " "optimized"} } */