1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
! Check offloaded function's attributes and classification for unparallelized
! OpenACC kernels.
! { dg-additional-options "--param openacc-kernels=parloops" }
! { dg-additional-options "-O2" }
! { dg-additional-options "-fopt-info-optimized-omp" }
! { dg-additional-options "-fdump-tree-ompexp" }
! { dg-additional-options "-fdump-tree-parloops1-all" }
! { dg-additional-options "-fdump-tree-oaccloops" }
! { dg-additional-options "-Wopenacc-parallelism" } for testing/documenting
! aspects of that functionality.
program main
implicit none
integer, parameter :: n = 1024
integer, dimension (0:n-1) :: a, b, c
integer :: i
! An "external" mapping of loop iterations/array indices makes the loop
! unparallelizable.
integer, external :: f
call setup(a, b)
!$acc kernels copyin (a(0:n-1), b(0:n-1)) copyout (c(0:n-1)) ! { dg-line l_compute1 }
! { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_compute1 }
do i = 0, n - 1
c(i) = a(f (i)) + b(f (i))
end do
!$acc end kernels
end program main
! Check the offloaded function's attributes.
! { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(oacc kernels, omp target entrypoint, noclone\\)\\)" 1 "ompexp" } }
! Check that exactly one OpenACC kernels construct is analyzed, and that it
! can't be parallelized.
! { dg-final { scan-tree-dump-times "FAILED:" 1 "parloops1" } }
! { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(oacc function \\(, , \\), oacc kernels, omp target entrypoint, noclone\\)\\)" 1 "parloops1" } }
! { dg-final { scan-tree-dump-not "SUCCESS: may be parallelized" "parloops1" } }
! Check the offloaded function's classification and compute dimensions (will
! always be 1 x 1 x 1 for non-offloading compilation).
! { dg-final { scan-tree-dump-times "(?n)Function is unparallelized OpenACC kernels offload" 1 "oaccloops" } }
! { dg-final { scan-tree-dump-times "(?n)Compute dimensions \\\[1, 1, 1\\\]" 1 "oaccloops" } }
! { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(oacc function \\(1, 1, 1\\), oacc kernels, omp target entrypoint, noclone\\)\\)" 1 "oaccloops" } }
|
