[swift-dev] IRGen variadic function declaration

[Slava Pestov]

Please don’t use @_silgen_name. Soon it will only be available within the standard library.

Instead, write C wrappers around your intrinsics and create a Clang module that you can import from Swift. If you define the wrappers as static inline functions in a header file there won’t be any runtime overhead.

Slava

> On Apr 11, 2017, at 2:27 PM, Richard Wei via swift-dev <swift-dev at swift.org> wrote:
> 
> Hello,
> 
> I’m trying to declare (using _silgen_name) a Swift function that maps onto an IR intrinsic with argument (i32, …). Is there a way to emit the exact variadic function from Swift?
> 
> -Richard
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