| ! { dg-do compile } |
| ! { dg-options "-O2 -fdump-tree-optimized" } |
| ! Tests whether volatile really works for arrays |
| ! PR fortran/29601 |
| logical, allocatable, volatile :: t1(:) |
| logical, allocatable :: t2(:) |
| integer :: i |
| |
| allocate(t1(1),t2(1)) |
| t1 = .false. |
| t2 = .false. |
| do i = 1, 2 |
| if(ubound(t1,1) /= 1) print *, 'VolatileNotOptimizedAway1' |
| if(ubound(t2,1) /= 1) print *, 'NonVolatileNotOptimizedAway1' |
| end do |
| |
| t1 = .false. |
| if(t1(1)) print *, 'VolatileNotOptimizedAway2' |
| t2 = .false. |
| if(t2(1)) print *, 'NonVolatileNotOptimizedAway2' |
| end |
| ! { dg-final { scan-tree-dump "VolatileNotOptimizedAway1" "optimized" } } |
| ! { dg-final { scan-tree-dump "VolatileNotOptimizedAway2" "optimized" } } |
| ! { dg-final { scan-tree-dump-not "NonVolatileNotOptimizedAway1" "optimized" } } |
| ! { dg-final { scan-tree-dump-not "NonVolatileNotOptimizedAway2" "optimized" } } |