SPE Support

[Sebastian Huber]

----- Am 15. Aug 2019 um 0:55 schrieb joel joel at rtems.org:

> Hi
> 
> Just thinking out loud.
> 
> If the SPE continues to be supported by GCC, why can't we just have
> spe as a separate CPU in the tree with all the build infrastructure
> just reference PowerPC files as needed in their current location?
> 
> I can see a need to copy/move a bsp.h and perhaps,
> score/cpu/spe/include would have to be populated.
> 
> Just thinking there has to be a relatively straightforward hack to
> make this work.

The GCC powerpcspe target was removed in GCC 9:

https://github.com/RTEMS/gnu-mirror-gcc/commit/b31d0348ddada49453e3edaaf93a423fdc61dc79