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* config/bfin/bfin.c (n_dregs_to_save, n_pregs_to_save, expand_prologue_reg_save, expand_epilogue_reg_restore): New argument IS_INTHANDLER; all callers changed. (n_regs_saved_by_prologue): Take interrupt handler attributes into account. (do_link, do_unlink): New argument ALL; all callers changed. (expand_interrupt_handler_prologue, expand_interrupt_handler_epilogue): If function isn't leaf, save and restore all registers. (bfin_function_ok_for_sibcall): Only true if not an interrupt or exception handler. From-SVN: r106526
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