blob: dcfe94f90e42996411a0339ee5df41d150b1fc3c [file] [log] [blame]
! { dg-do run }
! PR fortran/35681
! Check that dependencies of MVBITS arguments are resolved correctly by using
! temporaries if both arguments refer to the same variable.
integer, dimension(10) :: ila1 = (/1,2,3,4,5,6,7,8,9,10/)
integer, dimension(20) :: ila2
integer, dimension(10), target :: ila3
integer, pointer :: ila3_ptr(:)
integer, parameter :: SHOULD_BE(10) = (/17,18,11,4,13,22,7,16,9,18/)
integer, parameter :: INDEX_VECTOR(10) = (/9,9,6,2,4,9,2,9,6,10/)
ila2(2:20:2) = ila1
ila3 = ila1
! Argument is already packed.
call mvbits (ila1(INDEX_VECTOR), 2, 4, ila1, 3)
write (*,'(10(I3))') ila1
if (any (ila1 /= SHOULD_BE)) STOP 1
! Argument is not packed.
call mvbits (ila2(2*INDEX_VECTOR), 2, 4, ila2(2:20:2), 3)
write (*,'(10(I3))') ila2(2:20:2)
if (any (ila2(2:20:2) /= SHOULD_BE)) STOP 2
! Pointer and target
ila3_ptr => ila3
call mvbits (ila3(INDEX_VECTOR), 2, 4, ila3_ptr, 3)
write (*,'(10(I3))') ila3
if (any (ila3 /= SHOULD_BE)) STOP 3
end