On Thu, 31 Jul 2014, Richard Biener wrote:
>
> The following fixes PR61950 by properly initializing the _size field
> of the static constructor for the vtable init member. Previously
> gfortran would use a 64bit integer to initialize the 32bit size field
> (not sure why larger aggregates are not considered).
>
> This breaks more sophisticated constant-folding and previously
> inhibited constant folding (which would have worked in this case
> been there no mismatch between initializer and field).
>
> Bootstrap and regtest ongoing on powerpc64-linux-gnu, ok? I'm not
> considering a backport as it is only a missed optimization there.
Ping?
Thanks,
Richard.
> Thanks,
> Richard.
>
> 2014-07-31 Richard Biener <rguent...@suse.de>
>
> * trans-expr.c (gfc_conv_structure): Initialize _size with
> a value of proper type.
>
> Index: gcc/fortran/trans-expr.c
> ===================================================================
> --- gcc/fortran/trans-expr.c (revision 213342)
> +++ gcc/fortran/trans-expr.c (working copy)
> @@ -6260,7 +6260,9 @@ gfc_conv_structure (gfc_se * se, gfc_exp
> else if (cm->ts.u.derived && strcmp (cm->name, "_size") == 0)
> {
> val = TYPE_SIZE_UNIT (gfc_get_derived_type (cm->ts.u.derived));
> - CONSTRUCTOR_APPEND_ELT (v, cm->backend_decl, val);
> + CONSTRUCTOR_APPEND_ELT (v, cm->backend_decl,
> + fold_convert (TREE_TYPE (cm->backend_decl),
> + val));
> }
> else
> {
>
--
Richard Biener <rguent...@suse.de>
SUSE / SUSE Labs
SUSE LINUX Products GmbH - Nuernberg - AG Nuernberg - HRB 16746
GF: Jeff Hawn, Jennifer Guild, Felix Imend"orffer
