How much should I worry about the Intel C++ compiler emitting suboptimal code for AMD?

Question

We\'ve always been an Intel shop. All the developers use Intel machines, recommended platform for end users is Intel, and if end users want to run on AMD it\'s their lookou

Answer 1

Buy an AMD box and run it on that. That seems like the only responsible thing to do, rather than trusting strangers on the internet ;)

Apart from that, I believe part of AMD's lawsuit against Intel is based on the claim that Intel's compiler specifically produces code that runs inefficiently on AMD processors. I don't know whether that's true or not, but AMD seems to believe so.

But even if they don't willfully do that, there's no doubt that Intel's compiler optimizes specifically for Intel processors and nothing else.

When that is said, I doubt it'd make a huge difference. AMD CPU's would still benefit from all the auto-vectorization and other clever features of the compiler.