WHOPR bootstrap, when/how?

[Diego Novillo]

On Thu, Apr 8, 2010 at 09:25, Basile Starynkevitch
<basile@starynkevitch.net> wrote:

> I am bit confused by this last sentence. Isn't it already the case in
> gcc 4.5 that using -flto both at compile and at link times (usually a
> trivial way to do that might be "make CC='gcc-4.5 -flto -O2'" or
> something similar) is practically enough to replace the -combine flag?

It should be, yes.  It still needs to be done and make sure that no
regressions are introduced.

> So what are the real use cases of -combine not covered by -flto ?

I don't know.  I haven't checked.  In theory, -flto is already a
superset of -combine.


Diego.