[RFC/PATCH] powerpc: Always use -mno-string & -mno-multiple

[Segher Boessenkool]

> powerpc: Always use -mno-string and -mno-multiple
>
> The string and multiple load/store instructions are causing more
> damage than help on a lot of processors where they are microcoded
> and are generally no good for the kernel to use. Let's make sure
> we don't emit them on any powerpc variant.

And they help a lot on many 32-bit CPUs.  NAK.

If you tell your GCC to compile for a certain CPU where
these insns would be very slow, GCC will automagically
not generate them, already.


Segher