.bad_compare in bootstrap of head

Richard Biener richard.guenther@gmail.com
Fri May 5 13:54:00 GMT 2017


On May 5, 2017 3:03:43 PM GMT+02:00, Jan Hubicka <hubicka@ucw.cz> wrote:
>> > I wonder how that patch can cause mismatches. Does it reproduce on
>one of
>> > compile farm machines (my x86-64 bootstrap works fine so does ia64
>on terbium
>> > after fixing the gcc 4.1 issue yeterday).
>> > It would be great to have -fdump-ipa-inline-details dumps of the
>mismatching
>> > run. Perhaps it will be easy to spot the problem.
>> 
>> Aha, --enable-checking=no. I will check what effect it have.
>
>It does reproduce for me.  Time estimates are very slightly different
>between
>checking and non-checking build.  I am investigating why.

You mean debugging and non-debugging build?

Richard.

>Honza
>> 
>> Honza



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