Apple will use LLVM

[Jeff Garzik]

On 02/16/2012 10:37 AM, Dave Jones wrote:
> On Thu, Feb 16, 2012 at 10:22:03AM +0530, Rahul Sundaram wrote:
>   >  On 02/16/2012 10:08 AM, Genes MailLists wrote:
>   >
>   >  >    Not to mention that the kernel devs use gcc to compile the kernel -
>   >  >  and it most certainly puts a lot of pressure on the compiler. I suspect
>   >  >  unless linus drops gcc as well, we'll at a minimum need to keep it to
>   >  >  build the kernel itself.
>   >
>   >  Not quite.  LLVM can be used to build the kernel
>
> The last I heard on this, it was very basic. Parts of the kernel
> wouldn't compile/work. Including fundamental stuff, like the module loader.
> I believe it still used gcc for some parts that choked llvm too.

You cannot yet build a non-SMP kernel with LLVM, much less boot.  We do 
weird stuff with labels that LLVM does not support, among other details. 
  Bugs have been filed with LLVM for well over a year, and they are 
aware of the unresolved LLVM issues preventing kernel builds.

	Jeff