I seem to recall that LCC was also used, at least on 10th Ed. Am I
imagining things, or was that real?

On Sun, Apr 25, 2021 at 4:51 PM Norman Wilson <norman@oclsc.org> wrote:

> I was waiting to see whether Steve Johnson would speak
> up, because I'm not much of an expert; but yes, the VAX
> C compiler in V8/V9/V10 is pcc2.
>
> I think there are a few Research-specific hacks to add
> additional stab info for pi(9.1) and on request insert
> basic-block profiling for lcomp(1), but nothing major.
>
> Maybe we did some hacking on c2 as well.  I know I did
> a lot of c2 cleanup later in my personal hacking in
> Toronto, but I don't think I did much if any in New
> Jersey.  But that's independent of the compiler (modulo,
> I think, some of my later fixes discovered by using c2
> with a different compiler).
>
> Norman Wilson
> Toronto ON
>