* reload1.c (reg_reloaded_contents, reg_reloaded_insn):
Change meaning: index is now hard reg number.
(reg_reloaded_valid, reg_reloaded_dead): New variables.
(reload_spill_index): Content is now a hard reg number.
(reload_as_needed): Change to fit new variable meaning.
(forget_old_reloads_1, allocate_reload_reg): Likewise.
(choose_reload_regs, emit_reload_insns): Likewise.