> > I don't follow.  If you're developing an optimizer, you need to do the
> > bootstrap to test the optimizer no matter how it connects to the rest
> > of the compiler.  All you save is that you do a smaller link, but that
> > time is measured in seconds on modern machines.
> 
> No, you don't.  All you need is an existing GCC binary installed 
> somewhere in your path that accepts -fplugin=mypass.so.  All you compile 
> is your pass, you don't need to even build GCC.

No, I mean for *testing* you need to do a bootstrap.  I'm not talking
about the minimum actually needed to build.

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