Some Haifa scheduler bugs

[Bernd Schmidt]

>   In message < Pine.SOL.3.90.970903184242.6496A-100000@bond.informatik.rwth-aachen.de >you write:
>   > How can reload generate incorrect code in this case except if the lifetime
>   > of a hard register gets extended by the scheduler or some other optimizer?
> When loading of an argument register requires a reload, which may force
> reload to clobber a previously loaded argument register.

Now I'm confused. Isn't the reload_address_base_reg_class stuff supposed to
handle that case?

Bernd