[LLVMdev] Support for ARM Run-Time ABI

[Sandeep Patel]

Attached is an earlier patch I've been sitting on for clearly way too
long. There are a few differences worth discussing:

* Only these few renamed libcalls are set as AAPCS because other
libcalls may still want to be AAPCS-VFP.
* I have all the comparison CCs backward from you. I don't know
offhand which is correct.
* I put in the long long libcalls as well.

Any or all of these differences may be errors on my part.

BTW, I'm absolutely thrilled to see contributions to the ARM target
from ARM. Many thanks! Please consider helping us with the A9
scheduler since the TRMs aren't sufficiently detailed to do a proper
job and we can't refer to the GCC machine description work that ARM
has done.

deep

On Fri, Sep 17, 2010 at 3:53 PM, Renato Golin <renato.golin at arm.com> wrote:
> Dear all,
>
> I just sent a patch to llvm-commits about ARM RT-EABI support when
> choosing "arm/thumb*-eabi-*" triple.
>
> It involves three changes described in the path:
>  1. Floating point helpers (instead of GNU ones). This is supported by
> GCC as well, in EABI mode.
>  2. Reminder lowering, using ABI helper too.
>  3. Memset, changing the order of arguments, as required by the ABI.
>
> Please review and let me know if there is any problem with that. I've
> extracted the patch from the trunk this morning, so it should be
> fairly straightforward to apply.
>
> --
> cheers,
> --renato
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