[LLVMdev] Contributing the Apple ARM64 compiler backend (original) (raw)

Eric Christopher echristo at gmail.com
Mon Mar 31 13:28:21 PDT 2014

On Mon, Mar 31, 2014 at 1:23 PM, JF Bastien <jfb at google.com> wrote:

On Mon, Mar 31, 2014 at 1:01 PM, Renato Golin <renato.golin at linaro.org> wrote:

On 31 March 2014 20:55, Tim Northover <t.p.northover at gmail.com> wrote: > I'd almost prefer to leave it in for the bugs to be discovered > (perhaps after some simple tests of our own). ARM went wirthout > FastISel support on Linux for years simply because it was declared > Darwin-only. Given the unique opportunity we have now, I'd say we should at least give it a try. I'm not sure I understand what you're proposing: check in with FastISel turned on for Linux, or off? I'd be afraid of bitrot if it's off, which was the main issue on the ARM side because code got added assuming Linux would work the same. Does it pass the tests on Linux with FastISel, or do we at least understand what's missing?

I think we're assuming it's turned on in ToT. And I haven't done any testing of the generated code for fast isel.

-eric

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