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Date: Fri, 05 May 2017 13:03:00 -0000
From: Jan Hubicka <hubicka@ucw.cz>
To: Jeff Law <law@redhat.com>
Cc: =?utf-8?B?0JTQvNC40YLRgNC40Lkg0JTRjNGP0YfQtdC90LrQvg==?= <dimhen@gmail.com>,	Andreas Schwab <schwab@suse.de>,	Daniel Santos <daniel.santos@pobox.com>, gcc <gcc@gcc.gnu.org>
Subject: Re: .bad_compare in bootstrap of head
Message-ID: <20170505130343.GA82320@kam.mff.cuni.cz>
References: <dc529669-843a-5f62-36b8-97e18460d4e7@pobox.com> <mvm8tmdumy2.fsf@suse.de> <c0408e39-7b48-10bf-bdc3-f2c50fec1b8f@redhat.com> <CADJjh6nhWSovBkt5_bLus=xyKTKYOtWcUsBXHb8tRJhJRZcxRQ@mail.gmail.com> <98a50d2d-7f51-5277-df51-d5d612645d49@redhat.com> <e0b26b4a-f6c3-dc2c-d556-1534b409aa9d@redhat.com> <20170505103753.GC46606@kam.mff.cuni.cz> <20170505104037.GA36115@kam.mff.cuni.cz>
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> > 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.

Honza
> 
> Honza