[Openmp-dev] Declare variant + Nvidia Device Offload

[Johannes Doerfert via Openmp-dev]

Function names only, yes.

Basically, if "$" as part of a function name is OK in the Intel pipeline.

We will use that to mangle declare variant functions because the "." we 
used so far upsets nvcc...


On 5/20/20 8:52 PM, Narayanaswamy, Ravi wrote:
> I was not following this thread.
> Is this for function names only?
> I believe if it is function names only should be ok.
> Thanks
> Ravi
>
> From: Jon Chesterfield <jonathanchesterfield at gmail.com>
> Sent: Wednesday, May 20, 2020 4:10 PM
> To: Johannes Doerfert <johannesdoerfert at gmail.com>
> Cc: Lukas Sommer <sommer at esa.tu-darmstadt.de>; Jonas Hahnfeld <hahnjo at hahnjo.de>; openmp-dev at lists.llvm.org; Narayanaswamy, Ravi <ravi.narayanaswamy at intel.com>
> Subject: Re: [Openmp-dev] Declare variant + Nvidia Device Offload
>
>> _$_ seems like a reasonable solution, as ISO C/C++ forbids dollar-sign
> I CC'ed Ravi and Jon to confirm that Intel and AMD toolchains will be
> be fine with "$" in the symbol name. We already know it should work for
> NVIDIA and NEC. I guess that would be all.
>
> '$' works fine on amdgcn. We're using llvm-mc for the assembler and (nearly?) standard elf for the binary formats so it should work really. Hello world style test passes too.
>
> Embedded \0 in the middle of the symbol name was rejected in IR but anything else seems to work.
>
> Thanks!
>
> Jon
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