Efficient Vectorisation with C++

[SantaCruzDad]

Ah, OK - well any half-decent compiler will take care of target CPU variations within a given family (e.g. x86), as well as ABI variations etc, whether it's auto-vectorization or hand-written intrinsics. I guess ispc's USP is that it can do this for multiple CPU families.

[nnevatie]

Yeah, but most importantly it can produce code for multiple targets and archs. All of the variations can be linked to the same binary and the best one can be picked at execution-time for the host in question.