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! { dg-do compile }

! { dg-options "-O3 -fdump-tree-optimized" }

! Tests whether volatile really works with modules

! PR fortran/29601

module volmod

  implicit none

  integer, volatile :: a

  logical :: b,c

  volatile :: b

contains

  subroutine sample

    a = 33.

    if(a /= 432) print *,'aPresent'

    b = .false.

    if(b) print *,'bPresent'

    c = .false.

    if(c) print *,'cPresent'

  end subroutine sample

end module volmod

program main

  use volmod

  implicit none

  a = 432

  if(a /= 432) print *,'aStillPresent'

  b = .false.

  if(b)        print *,'bStillPresent'

  c = .false.

  if(c)        print *,'cStillPresent'

end program main

! { dg-final { scan-tree-dump "aPresent" "optimized" } }

! { dg-final { scan-tree-dump "bPresent" "optimized" } }

! { dg-final { scan-tree-dump "aStillPresent" "optimized" } }

! { dg-final { scan-tree-dump "bStillPresent" "optimized" } }

! { dg-final { scan-tree-dump-not "cPresent" "optimized" } }

! { dg-final { scan-tree-dump-not "cStillPresent" "optimized" } }

! { dg-final { cleanup-tree-dump "optimized" } }

! { dg-final { cleanup-modules "volmod" } }