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Date: Tue, 12 Jul 2016 12:55:00 -0000
From: Segher Boessenkool <segher@kernel.crashing.org>
To: Bernd Schmidt <bschmidt@redhat.com>
Cc: Richard Biener <richard.guenther@gmail.com>,        Michael Meissner <meissner@linux.vnet.ibm.com>,        GCC Patches <gcc-patches@gcc.gnu.org>,        David Edelsohn <dje.gcc@gmail.com>,        Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Subject: Re: [PATCH], PowerPC support to enable -mlra and/or -mfloat128
Message-ID: <20160712125520.GE13551@gate.crashing.org>
References: <20160711200701.GA21095@ibm-tiger.the-meissners.org> <CAFiYyc1_oL7dkHdNHw_ue5-sqpOecCg7RpCwfHCoWG2zcqWXuA@mail.gmail.com> <d9d36b92-88cf-2a55-ebc5-f6a5c7aa1ce8@redhat.com> <CAFiYyc2TK=akkW6ACKpPJVvYM4W+aZ4r0cDG-Fvruoxj-t=L1w@mail.gmail.com> <20160712121559.GC13551@gate.crashing.org> <7f93c3f9-6e15-257e-f573-43f2c14127fe@redhat.com>
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On Tue, Jul 12, 2016 at 02:40:28PM +0200, Bernd Schmidt wrote:
> On 07/12/2016 02:15 PM, Segher Boessenkool wrote:
> >How can LRA ever be made default for all targets without breaking those
> >that do not want to change?
> 
> LRA advocates would have to fix the issues with it that prevent it from 
> being usable on certain targets.

That would be the case if the plan was to remove reload.  But the current
proposal is only to change the default, and the affected targets can easily
implement the hook (to say "no") if LRA won't work for them.


Segher