> On Dec 17, 2015, at 3:43 PM, Greg Parker <gpar...@apple.com> wrote:
>
>
>> On Dec 17, 2015, at 3:34 PM, Joe Groff via swift-dev <swift-dev@swift.org>
>> wrote:
>>
>> On ARMv7 and ARM64, the argument and return register sets are the same
>
> Nit: True on arm64. Not true on armv7; the GPR parameters are r0-r3 but GPR
> return is r0-r1.
True, I meant that one sequence is a prefix of the other. If you pass the first
argument in and return it out via {r0, r1} the operations could be done
in-place.
-Joe
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