[Bug fortran/38883] [4.4 Regression] ICE for MVBITS with derived type argument that has run-time subscripts

[burnus at gcc dot gnu dot org]

------- Comment #3 from burnus at gcc dot gnu dot org  2009-01-18 14:28 -------
Slightly reduced test case below. If the FROM= and TO= arguments ("A()%I") are
not the same, the program does not ICE. Neither does it if one changes the
bound "N2" to "2" (but it does if one changes the second argument to
"(2:1:-1)"). Thus the problem seems to be closely linked with needing to create
a copy of the second argument. That is related to PR 38887, where unpacking the
copied 2nd argument generated an ICE at run time.

      module yg0009_stuff
      implicit none
      type unseq
         integer I
      end type
      contains
      SUBROUTINE YG0009(A,N2)
      TYPE(UNSEQ) A(2)
      TYPE(UNSEQ) B(2)
      integer :: N2
      CALL MVBITS (A(1:2)%I,1, 1, A(1:N2)%I, 1)
      END SUBROUTINE
      end module yg0009_stuff


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.4 Regression] Internal   |[4.4 Regression] ICE for
                   |Compiler Error for MVBITS   |MVBITS with derived type
                   |with derived type argument  |argument that has run-time
                   |that has run-time subscripts|subscripts


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38883