[LLVMdev] Contributing the Apple ARM64 compiler backend

[Hal Finkel]

----- Original Message -----
> From: "Tim Northover" <t.p.northover at gmail.com>
> To: "Renato Golin" <renato.golin at linaro.org>
> Cc: "LLVM Developers Mailing List" <LLVMdev at cs.uiuc.edu>
> Sent: Friday, March 28, 2014 3:47:49 PM
> Subject: Re: [LLVMdev] Contributing the Apple ARM64 compiler backend
> 
> Hi Renato,
> >> 2. Test it. Benchmark it. Explore it. Get data for the community
> >> to work with about the state of the back end. ARM has some
> >> excellent data that will help guide us here.
> >
> > Count me in. Would that be a different triple? arm64-linux-gnu?
> 
> Yep. "--target arm64-linux-gnu" should behave basically the same as
> aarch64-linux-gnu, except ending up in the ARM64 backend. Complete
> with the usual issues of finding your toolchain's includes & libs;
> we've not solved that.

Is a different target triple the right thing to do here? I think that would introduce a ton of user confusion. How about we keep the target triples as they are, and add some other way to choose the desired backend?

 -Hal

> 
> Cheers.
> 
> Tim.
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-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory