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! { dg-do compile }

! { dg-options "-O2 -fdump-tree-optimized" }

! Tests whether volatile really works

! PR fortran/29601

logical, volatile :: t1

logical :: t2

integer :: i

t2 = .false.

t1 = .false.

do i = 1, 2

  if(t1) print *, 'VolatileNotOptimizedAway'

  if(t2) print *, 'NonVolatileNotOptimizedAway'

end do

end

! { dg-final { scan-tree-dump "VolatileNotOptimizedAway" "optimized" } } */

! { dg-final { scan-tree-dump-not "NonVolatileNotOptimizedAway" "optimized" } } */

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