ICE in optimized build of 20000103

[David Ronis]

I've just gone through additional bootstrap builds--one with
BOOT_CFLAGS="-O0 -g" and one with the default settings.  Both builds
succeed.  Builds with BOOT_CFLAGS="-O3 -march=pentium or pentiumpro
-fomit-frame-pointer etc." fail (the exact flags are obvious for the
reported command lines in the bug reports I've submitted in the past).

This seems to be exactly the same problem as Alexandre confirms (and
he, unlike me, supposed something knows something about gcc) as have
others.  

It is a longstanding bug, albeit one that won't turn up unless you
turn on enough optimization; the concern is, of course, that if gcc
can't build itself with optimization turned on how can it be trusted
to work with other code.

David