[LLVMdev] Implementing the ARM NEON Intrinsics for PowerPC

[Konstantin Tokarev]

02.10.2013, 15:12, "David Tweed" <david.tweed at arm.com>:
> (Note: these are personal opinions rather than anything from my employer.)
>
> Although unusual, there might be circumstances in which it would make sense.
>
> | If you want write code that explicitly targets CPU execution units it's
> | necessarily tied to that specific CPU architecture.  If you just want to
> | test code for written for a different CPU on a development box your best
> | bet is to use a VM like QEMU with CPU emulation.
>
> It's possible to have either already written code to analyse, or be
> intending
> to write code that will eventually
> be deployed on a particular mobile architecture but wish to develop that on
> a desktop
> machine. Using an architectural simulation will potentially incur more of a
> cost than implementing as much optimization of the emulation via compiler
> transformation at compile time. (Whether this is actually enough all the
> work of writing
> an LLVM backend is another question of course.)

Or to compile existing code using NEON intrinsics and run it on PowerPC device
without changes.

-- 
Regards,
Konstantin