! { dg-do compile } ! { dg-options "-O2 -fdump-tree-optimized" } ! Tests whether volatile really works for pointers ! PR fortran/29601 logical, pointer, volatile :: t1 logical, pointer :: t2 integer :: i t1 => NULL(t1) if(associated(t1)) print *, 'VolatileNotOptimizedAway' t2 => NULL(t2) if(associated(t2)) print *, 'NonVolatileNotOptimizedAway' end ! { dg-final { scan-tree-dump "VolatileNotOptimizedAway" "optimized" } } ! { dg-final { scan-tree-dump-not "NonVolatileNotOptimizedAway" "optimized" } } ! { dg-final { cleanup-tree-dump "optimized" } }