* regrename.c (struct value_data): Add max_value_regs.
        (init_value_data): Initialize it.
        (kill_value): Kill values that overlap the dying register.
        (set_value_regno): New.
        (kill_set_value, kill_autoinc_value, copy_value): Use it.
        (copyprop_hardreg_forward_1): Kill earlyclobber operands
        before looking at inputs.

From-SVN: r48028