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Re: expanding addrs for initializers


On 10/7/05, DJ Delorie <dj@redhat.com> wrote:
>
> > Certainly looks plausible.  Ok if it regression tests well.
>
> Tested OK, committed.
>
> /me wonders if the test should limit to non-aggregate types.

g++.dg/init/struct3.C still fails, because instead of restricting the
error to expanding conversions, you restricted it to truncating conversions.
The following fixes that.

Richard.

Index: varasm.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/varasm.c,v
retrieving revision 1.531
diff -c -3 -p -r1.531 varasm.c
*** varasm.c    7 Oct 2005 18:44:26 -0000       1.531
--- varasm.c    11 Oct 2005 14:34:03 -0000
*************** output_constant (tree exp, unsigned HOST
*** 3889,3895 ****
        /* Make sure eliminating the conversion is really a no-op, except with
         VIEW_CONVERT_EXPRs to allow for wild Ada unchecked conversions and
         union types to allow for Ada unchecked unions.  */
!       if (type_size < op_size
          && TREE_CODE (exp) != VIEW_CONVERT_EXPR
          && TREE_CODE (TREE_TYPE (exp)) != UNION_TYPE)
        internal_error ("no-op convert from %wd to %wd bytes in initializer",
--- 3889,3895 ----
        /* Make sure eliminating the conversion is really a no-op, except with
         VIEW_CONVERT_EXPRs to allow for wild Ada unchecked conversions and
         union types to allow for Ada unchecked unions.  */
!       if (type_size > op_size
          && TREE_CODE (exp) != VIEW_CONVERT_EXPR
          && TREE_CODE (TREE_TYPE (exp)) != UNION_TYPE)
        internal_error ("no-op convert from %wd to %wd bytes in initializer",


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