[RFC] Make 4-stage PGO bootstrap really working

[Markus Trippelsdorf]

On 2017.10.27 at 15:03 +0200, Martin Liška wrote:
> > And BTW would it make sense to add -gtoggle to stage2 in bootstrap-lto?
> 
> Why do you want to have it there? Am I right that we do not do a stage
> comparison with LTO bootstrap?

The idea was to trigger -g -flto at least during one stage, just as a
sanity check. 
Comparison wouldn't make sense, because we would compare LTO object
files.

-- 
Markus