* expr.c (expand_expr <COMPLEX_CST, STRING_CST>): Always call

        output_constant_def, use its result instead of TREE_CST_RTL (exp).
        Can assume it has the form (mem (symbol_ref ".LCxxx")).
        (expand_expr <COMPONENT_REF>): Can always just extract the
        relevant field of a CONSTRUCTOR.
        (expand_expr <ARRAY_REF, COMPONENT_REF, BIT_FIELD_REF,
        ARRAY_RANGE_REF>): Make control flow explicit.
        * varasm.c (output_constant_def): Can look at TREE_CST_RTL of
        an INTEGER_CST.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@66148 138bc75d-0d04-0410-961f-82ee72b054a4