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Re: [PATCH] Fix predcom ICE introduced by var clobber changes (PR tree-optimization/51246, take 2)
- From: Richard Guenther <richard dot guenther at gmail dot com>
- To: Michael Matz <matz at suse dot de>
- Cc: Jakub Jelinek <jakub at redhat dot com>, gcc-patches at gcc dot gnu dot org
- Date: Thu, 1 Dec 2011 14:19:28 +0100
- Subject: Re: [PATCH] Fix predcom ICE introduced by var clobber changes (PR tree-optimization/51246, take 2)
- References: <20111124150804.GI27242@tyan-ft48-01.lab.bos.redhat.com> <Pine.LNX.4.64.1111241721040.26507@wotan.suse.de> <20111124164654.GM27242@tyan-ft48-01.lab.bos.redhat.com> <Pine.LNX.4.64.1111241751040.26507@wotan.suse.de>
On Thu, Nov 24, 2011 at 5:51 PM, Michael Matz <matz@suse.de> wrote:
> Hi,
>
> On Thu, 24 Nov 2011, Jakub Jelinek wrote:
>
>> On Thu, Nov 24, 2011 at 05:28:00PM +0100, Michael Matz wrote:
>> > As the default defs are already automatically handled by all our ssa
>> > infrastructure (including warning and propagation machinery) I think it
>> > would be best to generate such one instead of a clobber for the RHS.
>>
>> So like this?
>
> I would feel comfortable with this one, yes.
What's when new_tree is a PARM_DECL? If that can't happen the patch is ok.
Richard.
>
> Ciao,
> Michael.