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

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