PR middle-end/30191

        Revert:
        * reload1.c (eliminate_regs_in_insn): Merge the plus_src "else" and
        the offset == 0 "then" clauses.
        * config/rs6000/predicates.md (gpc_reg_operand): Check for
        reload_in_progress.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119844 138bc75d-0d04-0410-961f-82ee72b054a4