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65 lines
1.2 KiB
Fortran
65 lines
1.2 KiB
Fortran
! { dg-do run }
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! { dg-additional-options "-msse2" { target sse2_runtime } }
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! { dg-additional-options "-mavx" { target avx_runtime } }
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module SIMD4_mod
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contains
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subroutine work( b, n, m )
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implicit none
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real :: b(n)
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integer :: i,n,m
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call init(b, n)
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!$omp simd safelen(16)
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do i = m+1, n
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b(i) = b(i-m) - 1.0
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end do
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end subroutine work
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subroutine work_ref( b, n, m )
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implicit none
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real :: b(n)
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integer :: i,n,m
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call init(b, n)
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do i = m+1, n
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b(i) = b(i-m) - 1.0
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end do
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end subroutine work_ref
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subroutine init (b, n)
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real :: b(*)
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integer :: n, i, s
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s = -1
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do i = 1, n
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b(i) = i * i * s
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s = -s
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end do
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end subroutine
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subroutine check (a, b, n)
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integer :: i, n
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real, parameter :: EPS = 0.000001
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real :: diff, a(*), b(*)
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do i = 1, n
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diff = a(i) - b(i)
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if (diff > EPS .or. -diff > EPS) STOP 1
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end do
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end subroutine
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end module
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program SIMD4
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use SIMD4_mod
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real :: b(128), b_ref(128)
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call work(b, 128, 32)
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call work_ref(b_ref, 128, 32)
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call check(b, b_ref, 128)
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end program
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