PR middle-end/18008

        * c-decl.c (finish_struct): Set DECL_MODE after resetting a
        field's type.
        * expmed.c (store_fixed_bit_field): Create a paradoxical subreg
        if we don't need the bits above those present in the current mode.
        * expr.c (store_field): Strip conversions to odd-bit-sized types
        if the destination field width matches.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@94290 138bc75d-0d04-0410-961f-82ee72b054a4