gcc/testsuite/gfortran.dg/block_name_1.f90

   1 ! { dg-do compile }
   2 ! Verify that the compiler accepts the various legal combinations of
   3 ! using construct names.
   4 !
   5 ! The correct behavior of EXIT and CYCLE is already established in
   6 ! the various DO related testcases, they're included here for
   7 ! completeness.
   8        dimension a(5)
   9        i = 0
  10        ! construct name is optional on else clauses
  11        ia: if (i > 0) then
  12           i = 1
  13        else
  14           i = 2
  15        end if ia
  16        ib: if (i < 0) then
  17           i = 3
  18        else ib
  19           i = 4
  20        end if ib
  21        ic: if (i < 0) then
  22           i = 5
  23        else if (i == 0) then ic
  24           i = 6
  25        else if (i == 1) then
  26           i =7
  27        else if (i == 2) then ic
  28           i = 8
  29        end if ic
  30
  31        fa: forall (i=1:5, a(i) > 0)
  32           a(i) = 9
  33        end forall fa
  34
  35        wa: where (a > 0)
  36           a = -a
  37        elsewhere
  38           wb: where (a == 0)
  39              a = a + 1.
  40           elsewhere wb
  41              a = 2*a
  42           end where wb
  43        end where wa
  44
  45        j = 1
  46        sa: select case (i)
  47           case (1)
  48              i = 2
  49           case (2) sa
  50              i = 3
  51           case default sa
  52              sb: select case (j)
  53                 case (1) sb
  54                    i = j
  55                 case default
  56                    j = i
  57              end select sb
  58        end select sa
  59
  60        da: do i=1,10
  61           cycle da
  62           cycle
  63           exit da
  64           exit
  65           db: do
  66              cycle da
  67              cycle db
  68              cycle
  69              exit da
  70              exit db
  71              exit
  72              j = i+1
  73           end do db
  74           dc: do while (j>0)
  75              j = j-1
  76           end do dc
  77        end do da
  78 end