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! { dg-do run }
! { dg-require-effective-target fortran_large_int }
! Program to test the cshift intrinsic for kind=16 integers
program intrinsic_cshift
integer, parameter :: k=16
integer(kind=k), dimension(3_k, 3_k) :: a
integer(kind=k), dimension(3_k, 3_k, 2_k) :: b
! Scalar shift
a = reshape ((/1_k, 2_k, 3_k, 4_k, 5_k, 6_k, 7_k, 8_k, 9_k/), (/3_k, 3_k/))
a = cshift (a, 1_k, 1_k)
if (any (a .ne. reshape ((/2_k, 3_k, 1_k, 5_k, 6_k, 4_k, 8_k, 9_k, 7_k/), (/3_k, 3_k/)))) &
STOP 1
a = reshape ((/1_k, 2_k, 3_k, 4_k, 5_k, 6_k, 7_k, 8_k, 9_k/), (/3_k, 3_k/))
a = cshift (a, -2_k, dim = 2_k)
if (any (a .ne. reshape ((/4_k, 5_k, 6_k, 7_k, 8_k, 9_k, 1_k, 2_k, 3_k/), (/3_k, 3_k/)))) &
STOP 2
! Array shift
a = reshape ((/1_k, 2_k, 3_k, 4_k, 5_k, 6_k, 7_k, 8_k, 9_k/), (/3_k, 3_k/))
a = cshift (a, (/1_k, 0_k, -1_k/))
if (any (a .ne. reshape ((/2_k, 3_k, 1_k, 4_k, 5_k, 6_k, 9_k, 7_k, 8_k/), (/3_k, 3_k/)))) &
STOP 3
a = reshape ((/1_k, 2_k, 3_k, 4_k, 5_k, 6_k, 7_k, 8_k, 9_k/), (/3_k, 3_k/))
a = cshift (a, (/2_k, -2_k, 0_k/), dim = 2_k)
if (any (a .ne. reshape ((/7_k, 5_k, 3_k, 1_k, 8_k, 6_k, 4_k, 2_k, 9_k/), (/3_k, 3_k/)))) &
STOP 4
! Test arrays > rank 2
b = reshape ((/1_k, 2_k, 3_k, 4_k, 5_k, 6_k, 7_k, 8_k, 9_k, 11_k, 12_k, 13_k, 14_k, 15_k, 16_k, 17_k,&
18_k, 19_k/), (/3_k, 3_k, 2_k/))
b = cshift (b, 1_k)
if (any (b .ne. reshape ((/2_k, 3_k, 1_k, 5_k, 6_k, 4_k, 8_k, 9_k, 7_k, 12_k, 13_k, 11_k, 15_k,&
16_k, 14_k, 18_k, 19_k, 17_k/), (/3_k, 3_k, 2_k/)))) &
STOP 5
b = reshape ((/1_k, 2_k, 3_k, 4_k, 5_k, 6_k, 7_k, 8_k, 9_k, 11_k, 12_k, 13_k, 14_k, 15_k, 16_k, 17_k,&
18_k, 19_k/), (/3_k, 3_k, 2_k/))
b = cshift (b, reshape ((/1_k, 2_k, 3_k, 4_k, 5_k, 6_k, 7_k, 8_k, 9_k/), (/3_k, 3_k/)), 3_k)
if (any (b .ne. reshape ((/11_k, 2_k, 13_k, 4_k, 15_k, 6_k, 17_k, 8_k, 19_k, 1_k, 12_k, 3_k,&
14_k, 5_k, 16_k, 7_k, 18_k, 9_k/), (/3_k, 3_k, 2_k/)))) &
STOP 6
end program
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