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! { dg-do run }

! PR 27662. Don't zero the first stride to indicate a temporary. It

! may be used later.

program pr27662

 implicit none

 real(kind=kind(1.0d0)), dimension (2, 2):: x, y, z;

 integer i, j

 x(1,1) = 1.d0

 x(2,1) = 0.d0

 x(1,2) = 0.d0

 x(2,2) = 1.d0

 z = matmul (x, transpose (test ()))

 do i = 1, size (x, 1)

   do j = 1, size (x, 2)

     if (x (i, j) .ne. z (i, j)) call abort ()

   end do

 end do

contains

 function test () result (res)

   real(kind=kind(1.0d0)), dimension(2,2) :: res

   res(1,1) = 1.d0

   res(2,1) = 0.d0

   res(1,2) = 0.d0

   res(2,2) = 1.d0

 end function

end