re: NetBSD/vax 11.0RC1

OK, i spent a little bit more watching the vax-gcc build on my amd64
and there are _two_ major issues.

USER   PID %CPU %MEM    VSZ    RSS TTY    STAT STARTED       TIME COMMAND
mrg   6029  7.7  0.7 988764 927224 pts/3  TX+   8:28PM    1:03.01 /usr/libexec/cc1plus [...]
mrg  29935  0.5  0.3 412460 396404 pts/3  S+    8:28PM    0:01.22 as -I . -I .

this is after setting a gdb breakpoint on exit(1) in cc1plus and
seeing what happens then.

i'm going to check out a couple of things that i think we'll want
both of for native-vax here.  don't use -pipe, it's really hurting
here, and see what -O1 does to this, does it change... ah, not a
whole lot unfortunate:

mrg   8092  0.0  0.7 957796 887428 pts/4  TX+   8:41PM    0:31.03 /usr/libexec/cc1plus

even -O0 doesn't really help really enough.

mrg   3384 29.3  0.5 718204 670596 pts/4  TX+   8:46PM    0:11.60 /usr/libexec/cc1plus


.mrg.