> > We could go one step farther then and do the replacement in
> >
> >          if (gimple_has_volatile_ops (stmt)
> >              || stmt_could_throw_p (stmt))
> >            continue;
> >
> > I think that's equivalent.  Revised patch attached.
>
> Indeed.
>
> Ok.

Thanks.  It turns out that the Ada compiler cannot be bootstrapped in LTO mode 
on the 4.7 branch without the tree-ssa-pre.c patch, which is a regression from 
4.6 so I've backported it after bootstrapping/regtesting on x86_64-suse-linux.

-- 
Eric Botcazou

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