[Bug c++/36688] [4.3/4.4 Regression] Incorrect struct assignments with nested const initializers

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2008-08-11 20:50 -------
I think in gimplify_modify_expr_rhs
      case VAR_DECL:
        /* If we're assigning from a constant constructor, move the
           constructor expression to the RHS of the MODIFY_EXPR.  */
        if (DECL_INITIAL (*from_p)
            && TYPE_READONLY (TREE_TYPE (*from_p))
            && !TREE_THIS_VOLATILE (*from_p)
            && TREE_CODE (DECL_INITIAL (*from_p)) == CONSTRUCTOR)
we should be checking TREE_READONLY (*from_p) rather than TYPE_READONLY
(TREE_TYPE (*from_p)), as when the type is read-only, but the VAR_DECL is not,
the initializer in DECL_INITIAL might be still incomplete and needing runtime
initialization.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2008-08-11 01:38:50         |2008-08-11 20:50:26
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36688