[Bug fortran/50960] [OOP] vtables not marked as constant

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50960

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-11-02
     Ever Confirmed|0                           |1

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-11-02 14:32:13 UTC ---
Does not help.  The vtable objects are still not in .rodata:

        .data
        .align 32
        .type   __m_MOD___vtab_m_T2, @object
        .size   __m_MOD___vtab_m_T2, 40
__m_MOD___vtab_m_T2:
        .long   69979408
        .long   0
        .quad   __m_MOD___vtab_m_T
        .quad   __m_MOD___def_init_m_T2
        .quad   __m_MOD___copy_m_T2
        .quad   __m_MOD_ext

nor are reads from them optimized (-fdump-tree-fre-details, t.f90.027t.fre1):


<bb 6>:
  D.1793_12 = &__vtab_m_T;
  D.1794_13 = D.1793_12->bar;
  D.1794_13 ();

should have been simplified to the constant __vtab_m_T.bar is initialized
from.