gcc/testsuite/gfortran.dg/dec_static_2.f90

   1 ! { dg-do run }
   2 ! { dg-options "-fdec-static -fno-automatic -finit-local-zero" }
   3 !
   4 ! Test STATIC and AUTOMATIC with -fno-automatic and recursive subroutines.
   5 !
   6 subroutine assert(s, i1, i2)
   7   implicit none
   8   integer, intent(in)      :: i1, i2
   9   character(*), intent(in) :: s
  10   if (i1 .ne. i2) then
  11     print *, s, ": expected ", i2, " but was ", i1
  12     STOP 1
  13   endif
  14 endsubroutine
  15
  16 function f (x)
  17 implicit none
  18   integer f
  19   integer, intent(in) :: x
  20   integer, static     :: a ! should be SAVEd
  21   a = a + x ! should increment by x every time
  22   f = a
  23   return
  24 endfunction
  25
  26 recursive subroutine g (x)
  27 implicit none
  28   integer, intent(in) :: x
  29   integer, automatic  :: a ! should be automatic (in recursive)
  30   a = a + x ! should be set to x every time
  31   call assert ("g%a", a, x)
  32 endsubroutine
  33
  34 subroutine h (x)
  35 implicit none
  36   integer, intent(in) :: x
  37   integer, automatic  :: a ! should be automatic (outside recursive)
  38   a = a + x ! should be set to x every time
  39   call assert ("h%a", a, x)
  40 endsubroutine
  41
  42 implicit none
  43 integer :: f
  44
  45 ! Should return static value of c; accumulates x
  46 call assert ("f()", f(3), 3)
  47 call assert ("f()", f(4), 7)
  48 call assert ("f()", f(2), 9)
  49
  50 call g(3)
  51 call g(4)
  52 call g(2)
  53
  54 call h(3)
  55 call h(4)
  56 call h(2)
  57
  58 end