C++ automatic template instantiation?

[Mike Stump]

> Date: Wed, 19 Apr 2000 20:22:45 -0400 (EDT)
> From: Tudor Hulubei <tudor.hulubei@ecora.com>
> To: Philipp Thomas <pthomas@suse.de>, gcc@gcc.gnu.org

> I think the size reduction is huge, and it is worth using -frepo to
> get it, it is just that is soooo painful...

Yeah, I expect that.  I think I know what causes it too.  repo works
by transitive closure, starting with all undefined, and then defining
only those things that in fact _are_ undefined.  It is able to gc some
things.  The automatic method instantiates anything that appears to be
used, even if it might have been opimized out (as I recall).

You can improve it by using --gc-sections on the link line I bet.  I
think this is enough to get it down to the same size, give it a try
and let us know.  Also, would be nice to hear the amortized build time
differences for your projects as a percent.  (-frepo is 5% faster, %2
slow and 15% faster in apps 1 2 and 3)

Thanks for keeping us honest.