gcc/testsuite/gfortran.dg/allocatable_scalar_13.f90

   1 ! { dg-do run }
   2 ! { dg-options "-fdump-tree-original" }
   3 !
   4 ! Test the fix for PR66079. The original problem was with the first
   5 ! allocate statement. The rest of this testcase fixes problems found
   6 ! whilst working on it!
   7 !
   8 ! Reported by Damian Rouson  <damian@sourceryinstitute.org>
   9 !
  10   type subdata
  11     integer, allocatable :: b
  12   endtype
  13 !  block
  14     call newRealVec
  15 !  end block
  16 contains
  17   subroutine newRealVec
  18     type(subdata), allocatable :: d, e, f
  19     character(:), allocatable :: g, h, i
  20     character(8), allocatable :: j
  21     allocate(d,source=subdata(1)) ! memory was lost, now OK
  22     allocate(e,source=d) ! OK
  23     allocate(f,source=create (99)) ! memory was lost, now OK
  24     if (d%b .ne. 1) call abort
  25     if (e%b .ne. 1) call abort
  26     if (f%b .ne. 99) call abort
  27     allocate (g, source = greeting1("good day"))
  28     if (g .ne. "good day") call abort
  29     allocate (h, source = greeting2("hello"))
  30     if (h .ne. "hello") call abort
  31     allocate (i, source = greeting3("hiya!"))
  32     if (i .ne. "hiya!") call abort
  33     call greeting4 (j, "Goodbye ") ! Test that dummy arguments are OK
  34     if (j .ne. "Goodbye ") call abort
  35   end subroutine
  36
  37   function create (arg) result(res)
  38     integer :: arg
  39     type(subdata), allocatable :: res, res1
  40     allocate(res, res1, source = subdata(arg))
  41   end function
  42
  43   function greeting1 (arg) result(res) ! memory was lost, now OK
  44     character(*) :: arg
  45     Character(:), allocatable :: res
  46     allocate(res, source = arg)
  47   end function
  48
  49   function greeting2 (arg) result(res)
  50     character(5) :: arg
  51     Character(:), allocatable :: res
  52     allocate(res, source = arg)
  53   end function
  54
  55   function greeting3 (arg) result(res)
  56     character(5) :: arg
  57     Character(5), allocatable :: res, res1
  58     allocate(res, res1, source = arg) ! Caused an ICE
  59     if (res1 .ne. res) call abort
  60   end function
  61
  62   subroutine greeting4 (res, arg)
  63     character(8), intent(in) :: arg
  64     Character(8), allocatable, intent(out) :: res
  65     allocate(res, source = arg) ! Caused an ICE
  66   end subroutine
  67 end
  68 ! { dg-final { scan-tree-dump-times "builtin_malloc" 20 "original" } }
  69 ! { dg-final { scan-tree-dump-times "builtin_free" 21 "original" } }
  70