I actually generally see just the opposite - even automakers, who are traditionally stalwarts about anything, are now starting to use GPL software in cars.

"which is why there is so much work being invested into LLVM/Clang"

This is a weird opinion, that i've seen a few times.

This is not why LLVM was/is chosen, AFAIK. LLVM was/is chosen for greater control over destiny, a better platform, and a better community.

If LLVM was GPL there is exactly one company that would theoretically stop contributing (admittedly, it's been about 2 months since i calculated the list of companies that contributed in the past year). I doubt that would actually happen, too (mainly because I asked once if they would)

I was just at an LLVM social this evening, and not a single person there worked for a company that chose LLVM because of "massive commercial pressure against the GPL".

But I'm conflicted about GPL vs Apache (or BSDish) in the sense that I'm getting the message that I have to bend over backwards just a little bit further before somebody, somewhere might be willing to use my software, maybe. Free isn't enough. I also have to let them fork it, keep it proprietary, wrap their own brand around it, before maybe they might consider using it.

That said, I really want people to use it, and of course help me hack on it. But I'm conflicted.