[Openmcl-devel] M1 Port - Why PPC64 rather than the Arm32 port?

[Tim McNerney]

The ARM32 and ARM64 are, for all practical purposes, completely different architectures. 
The ARM64 is just plain closer to the PPC64 than any other CCL compiler target. 
CCL has different compilation strategies for machines that have lots of registers and machines that don’t. 
For this, and other reasons, the x86-64 is also not a good starting place for the ARM64 port. 

--Tim

> On Dec 31, 2023, at 06:02, Bruce O'Neel <bruce.oneel at pckswarms.ch> wrote:
> 
> 
> Hi,
> 
> I made this a separate message to not pollute the other thread.
> 
> More for curiosity rather than anything else, but, why is the PPC64 port the best to start from?  I would have naively guessed the Arm32 port.
> 
> Thanks.
> 
> bruce  
>