gcc/testsuite/gcc.dg/tree-ssa/copy-headers-9.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-ch-details" } */
   3 int a[100];
   4 void test (int m, int n)
   5 {
   6         int i = 0;
   7         do
   8         {
   9                 if (m)
  10                         break;
  11                 i++;
  12                 a[i]=0;
  13         }
  14         while (i<10);
  15 }
  16 /* { dg-final { scan-tree-dump-times "Duplicating bb . is a win" 1 "ch2" } } */
  17 /* { dg-final { scan-tree-dump-times "Will duplicate bb" 2 "ch2" } } */
  18 /* { dg-final { scan-tree-dump "is now do-while loop" "ch2" } } */