1! Test the MERGE_BITS intrinsic
2!
3! { dg-do run }
4! { dg-options "-ffree-line-length-none" }
5! { dg-require-effective-target fortran_integer_16 }
6
7#define CHECK(I,J,K) \
8  if (merge_bits(I,J,K) /= ior(iand(I,K),iand(J,not(K)))) call abort ; \
9  if (run_merge(I,J,K) /= merge_bits(I,J,K)) call abort
10
11  CHECK(13_16,18_16,22_16)
12  CHECK(-13_16,18_16,22_16)
13  CHECK(13_16,-18_16,22_16)
14  CHECK(13_16,18_16,-22_16)
15
16contains
17
18  function run_merge (i, j, k) result(res)
19    integer(kind=16) :: i, j, k, res
20    res = merge_bits(i,j,k)
21  end function
22end
23