1! { dg-do compile }
2! { dg-options "-O2 -fdump-tree-optimized" }
3! Tests whether volatile really works for arrays
4! PR fortran/29601
5logical, allocatable, volatile :: t1(:)
6logical, allocatable :: t2(:)
7integer :: i
8
9allocate(t1(1),t2(1))
10t1 = .false.
11t2 = .false.
12do i = 1, 2
13  if(ubound(t1,1) /= 1) print *, 'VolatileNotOptimizedAway1'
14  if(ubound(t2,1) /= 1) print *, 'NonVolatileNotOptimizedAway1'
15end do
16
17t1 = .false.
18if(t1(1)) print *, 'VolatileNotOptimizedAway2'
19t2 = .false.
20if(t2(1)) print *, 'NonVolatileNotOptimizedAway2'
21end
22! { dg-final { scan-tree-dump "VolatileNotOptimizedAway1" "optimized" } }
23! { dg-final { scan-tree-dump "VolatileNotOptimizedAway2" "optimized" } }
24! { dg-final { scan-tree-dump-not "NonVolatileNotOptimizedAway1" "optimized" } }
25! { dg-final { scan-tree-dump-not "NonVolatileNotOptimizedAway2" "optimized" } }
26