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References: <3d8d886a7e9d7bcf5bee9867e2f4849a210fd976.1477843149.git.segher@kernel.crashing.org> <CABu31nMgGauxDx5XegT28VYprZRAMZdtRm+zoLjpmeV46MkPBQ@mail.gmail.com> <20161031153504.GA3328@gate.crashing.org> <CAFiYyc2d1PC3tjrihuRadbSVKvmEQ++DPSU8y4Rr7E+7_hd36w@mail.gmail.com>
From: Steven Bosscher <stevenb.gcc@gmail.com>
Date: Wed, 02 Nov 2016 10:40:00 -0000
Message-ID: <CABu31nN0nVowQspRjnq3DiyWjetMR0ZjAdB+GdZwdW1NCwowfg@mail.gmail.com>
Subject: Re: [PATCH] bb-reorder: Improve compgotos pass (PR71785)
To: Richard Biener <richard.guenther@gmail.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>, GCC Patches <gcc-patches@gcc.gnu.org>
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 On Wed, Nov 2, 2016 at 10:02 AM, Richard Biener
<richard.guenther@gmail.com> wrote:
> On Mon, Oct 31, 2016 at 4:35 PM, Segher Boessenkool wrote:
>> On Mon, Oct 31, 2016 at 04:09:48PM +0100, Steven Bosscher wrote:
>>> On Sun, Oct 30, 2016 at 8:10 PM, Segher Boessenkool wrote:
>>> > +      cfg_layout_finalize ();
>>>
>>> I don't think you have to go into/out-of cfglayout mode for each iteration.
>>
>> Yeah probably.  I was too lazy :-)  It needs the cleanup_cfg every
>> iteration though, I was afraid that interacts.
>
> Ick.  Why would it need a cfg-cleanup every iteration?

I don't believe it needs a cleanup on every iteration. One cleanup at
the end should work fine.

Ciao!
Steven