re PR rtl-optimization/10776 (Large aggregate initializers with a single relocated entry causes excessive compile time regression)

        PR opt/10776
        * typeck2.c (split_nonconstant_init_1, split_nonconstant_init): New.
        (store_init_value): Use it.
        * decl.c (check_initializer): Expect full initialization code
        from store_init_value.
        * init.c (expand_aggr_init_1): Likewise.
        * decl2.c (maybe_emit_vtables): Abort if runtime init needed.

From-SVN: r75763