[RFC PATCH] powerpc: flexible register range save/restore macros

[Nicholas Piggin]

Excerpts from Christophe Leroy's message of July 5, 2021 3:52 pm:
> 
> 
> Le 03/07/2021 à 11:14, Nicholas Piggin a écrit :
>> Introduce macros that operate on a (start, end) range of registers,
>> which reduces lines of code and need to do mental arithmetic while
>> reading the code.
> 
> Looks like a nice patch.
> 
> Maybe you could split the patch in two parts, one part for GPRs and one patch for the FP/VR regs.

Sure I can do that.

Thanks,
Nick