"Kim, Eunchan" <helpbygrace@xxxxxxxxx> writes: > I found reg/f means that it is frame related register. But i didn't > understand why my sp, which is elim in this function, is (reg:SI) not > (reg/f:SI). > > does anyone know why this is happened? Look at your ELIMINABLE_REGS macro. There is most likely something wrong with it. Or you have defined STACK_POINTER_REGNUM and HARD_FRAME_POINTER_REGNUM to have the same value, or something like that. Ian