https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66079
--- Comment #5 from Paul Thomas <pault at gcc dot gnu.org> --- Created attachment 35603 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35603&action=edit Nearly OK patch The attached bootstraps and regtests on 6.0.0. The following runs without memory leaks and fixes problems as indicated: type subdata integer, allocatable :: b endtype ! block call newRealVec ! end block contains subroutine newRealVec type(subdata), allocatable :: d, e, f character(:), allocatable :: g, h, i allocate(d,source=subdata(1)) ! memory was lost, now OK allocate(e,source=d) ! OK allocate(f,source=create (99)) ! memory was lost, now OK if (d%b .ne. 1) call abort if (e%b .ne. 1) call abort if (f%b .ne. 99) call abort allocate (g, source = greeting1("good day")) if (g .ne. "good day") call abort allocate (h, source = greeting2("hello")) if (h .ne. "hello") call abort allocate (i, source = greeting3("hiya!")) if (i .ne. "hiya!") call abort end subroutine function create (arg) result(res) integer :: arg type(subdata), allocatable :: res allocate(res, source = subdata(arg)) end function function greeting1 (arg) result(res) ! memory was lost, now OK character(*) :: arg Character(:), allocatable :: res allocate(res, source = arg) end function function greeting2 (arg) result(res) character(5) :: arg Character(:), allocatable :: res allocate(res, source = arg) end function function greeting3 (arg) result(res) character(5) :: arg Character(5), allocatable :: res, res1 allocate(res, source = arg) ! Caused an ICE - now OK allocate(res1, source = arg) ! Caused an ICE - now OK if (res1 .ne. res) call abort end function end Just a small amount of cleaning up to do before submission. Paul