[LLVMdev] Implementing the ARM NEON Intrinsics for PowerPC

[Alex Rosenberg]

As crazy as this is, the reverse (AltiVec intrinsics on ARM hardware) was working in tree for a while for the common functions.

Another approach would be to develop a libTooling tool that helps rewrite processor-specific SIMD code to use some generic SIMD library (a C++1y one?) and provide ports of that library.

Alex

> On Oct 1, 2013, at 9:14 AM, Stanislav Manilov <stanislav.manilov at gmail.com> wrote:
> 
> Hello LLVM Devs,
> 
> Thanks for helping me previously to cross-compile for ARM, I managed to get a working toolchain and am currently having fun compiling different toy problems and running them on a pandaboard.
> 
> As part of my research I am trying to implement the ARM NEON Intrinsics in the PowerPC LLVM backend. I am still at the beginning of my efforts and am not yet familiar with either the ARM or the PowerPC backends. After I started investigating the code and found out that in total it is more than 100 kloc for the two backends I thought it is a good idea to ask you for some hints of where I should start from.
> 
> I have written a small unrelated experimental backend for LLVM before, so I have some experience with the topic.
> 
> Thanks,
>  - Stan
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