[nickbp]

With regard to 2, I don't care so much about compile speed (within reason) as I do about the speed of the produced binary. How fast is the output?

[tedunangst]

Depends entirely on what particular optimizations apply to your code. Overall, pcc is probably within 10% for most code, but you'll also find examples where gcc or llvm is 10x faster. It all depends.

[protomyth]

If your maintaining code on a VAX, you care a tad bit about compile speed.