gcc/testsuite/gfortran.dg/contiguous_3.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-O0 -fdump-tree-original" }
   3 !
   4 ! PR fortran/40632
   5 !
   6 ! CONTIGUOUS compile-time tests: Check that contigous
   7 ! works properly.
   8
   9 subroutine test1(a,b)
  10   integer, pointer, contiguous :: test1_a(:)
  11   integer, target, dimension(3) :: aa
  12   test1_a => aa
  13   call foo(test1_a)
  14   call foo(test1_a(::1))
  15   call foo(test1_a(::2))
  16 contains
  17   subroutine foo(b)
  18     integer :: b(*)
  19   end subroutine foo
  20 end subroutine test1
  21
  22 ! For the first two no pack is done; for the third one, an array descriptor
  23 ! (cf. below test3) is created for packing.
  24 !
  25 ! { dg-final { scan-tree-dump-times "_internal_pack.*test1_a" 0 "original" } }
  26 ! { dg-final { scan-tree-dump-times "_internal_unpack.*test1_a" 0 "original" } }
  27
  28
  29 subroutine t2(a1,b1,c2,d2)
  30   integer, pointer, contiguous :: a1(:), b1(:)
  31   integer, pointer :: c2(:), d2(:)
  32   a1 = b1
  33   c2 = d2
  34 end subroutine t2
  35
  36 ! { dg-final { scan-tree-dump-times "= a1->dim.0..stride;" 0 "original" } }
  37 ! { dg-final { scan-tree-dump-times "= b1->dim.0..stride;" 0 "original" } }
  38 ! { dg-final { scan-tree-dump-times "= c2->dim.0..stride;" 1 "original" } }
  39 ! { dg-final { scan-tree-dump-times "= d2->dim.0..stride;" 1 "original" } }
  40
  41
  42 subroutine test3()
  43   implicit none
  44   integer :: test3_a(8),i
  45   test3_a = [(i,i=1,8)]
  46   call foo(test3_a(::1))
  47   call foo(test3_a(::2))
  48   call bar(test3_a(::1))
  49   call bar(test3_a(::2))
  50 contains
  51   subroutine foo(x)
  52     integer, contiguous :: x(:)
  53     print *, x
  54   end subroutine
  55   subroutine bar(x)
  56     integer :: x(:)
  57     print *, x
  58   end subroutine bar
  59 end subroutine test3
  60