mirror of git://gcc.gnu.org/git/gcc.git
63 lines
1.2 KiB
Fortran
63 lines
1.2 KiB
Fortran
! { dg-do run }
|
|
! { dg-additional-options "-msse2" { target sse2_runtime } }
|
|
! { dg-additional-options "-mavx" { target avx_runtime } }
|
|
|
|
module SIMD3_mod
|
|
contains
|
|
subroutine work( a, b, n, sum )
|
|
implicit none
|
|
integer :: i, n
|
|
double precision :: a(n), b(n), sum, tmp
|
|
|
|
sum = 0.0d0
|
|
call init(a, b, n)
|
|
!$omp simd private(tmp) reduction(+:sum)
|
|
do i = 1,n
|
|
tmp = a(i) + b(i)
|
|
sum = sum + tmp
|
|
end do
|
|
|
|
end subroutine work
|
|
|
|
subroutine work_ref( a, b, n, sum )
|
|
implicit none
|
|
integer :: i, n
|
|
double precision :: a(n), b(n), sum, tmp
|
|
|
|
sum = 0.0d0
|
|
call init(a, b, n)
|
|
do i = 1,n
|
|
tmp = a(i) + b(i)
|
|
sum = sum + tmp
|
|
end do
|
|
|
|
end subroutine work_ref
|
|
|
|
subroutine init (a, b, n)
|
|
double precision :: a(*), b(*)
|
|
integer :: n, i, s
|
|
|
|
s = -1
|
|
do i = 1, n
|
|
a(i) = i * i * s
|
|
b(i) = i + i
|
|
s = -s
|
|
end do
|
|
|
|
end subroutine
|
|
end module
|
|
|
|
program SIMD3
|
|
use SIMD3_mod
|
|
double precision :: a(128), b(128), sum, sum_ref, diff
|
|
double precision, parameter :: EPS = 0.0000000000000001
|
|
|
|
call work(a, b, 128, sum)
|
|
call work_ref(a, b, 128, sum_ref)
|
|
|
|
diff = sum - sum_ref
|
|
|
|
if (diff > EPS .or. -diff > EPS) call abort
|
|
|
|
end program
|