gcc/testsuite/gcc.dg/tree-ssa/copy-headers-7.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fno-tree-vrp -fdump-tree-ch2-details --param logical-op-non-short-circuit=0" } */
   3
   4 int is_sorted(int *a, int n, int m, int k)
   5 {
   6   if (k > 0)
   7     for (int i = 0; k > i && m && i < n - 1 ; i++)
   8       if (a[i] > a[i + 1])
   9         return 0;
  10   return 1;
  11 }
  12
  13 /* Verify we apply loop header copying but only copy the IV tests and
  14    the invariant test, not the alternate exit test.  */
  15
  16 /* { dg-final { scan-tree-dump "is now do-while loop" "ch2" } } */
  17 /* { dg-final { scan-tree-dump-times "Conditional combines static and invariant" 0 "ch2" } } */
  18 /* { dg-final { scan-tree-dump-times "Will elliminate invariant exit" 1 "ch2" } } */
  19 /* { dg-final { scan-tree-dump-times "Will eliminate peeled conditional" 1 "ch2" } } */
  20 /* { dg-final { scan-tree-dump-times "Will duplicate bb" 3 "ch2" } } */