[swift-dev] Value-result ABI for small trivial inouts

Greg Parker gparker at apple.com
Thu Dec 17 17:43:14 CST 2015


> On Dec 17, 2015, at 3:34 PM, Joe Groff via swift-dev <swift-dev at 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.


-- 
Greg Parker     gparker at apple.com     Runtime Wrangler




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