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Re: Dealing with paradoxical subregs of memory?
- From: Dominik Vogt <vogt at linux dot vnet dot ibm dot com>
- To: Segher Boessenkool <segher at kernel dot crashing dot org>
- Cc: gcc at gcc dot gnu dot org, Andreas Krebbel <krebbel at linux dot vnet dot ibm dot com>, Ulrich Weigand <Ulrich dot Weigand at de dot ibm dot com>
- Date: Thu, 26 Jan 2017 11:12:57 +0100
- Subject: Re: Dealing with paradoxical subregs of memory?
- Authentication-results: sourceware.org; auth=none
- References: <20170125173604.GA28642@linux.vnet.ibm.com> <20170125224523.GS30284@gate.crashing.org>
- Reply-to: vogt at linux dot vnet dot ibm dot com
On Wed, Jan 25, 2017 at 04:45:23PM -0600, Segher Boessenkool wrote:
> On Wed, Jan 25, 2017 at 06:36:04PM +0100, Dominik Vogt wrote:
> > On the other hand, Combine
> > does not know that they are "outlawed" and happily generates
> > them.
>
> combine should not generate things that can never match. Of course it
> sometimes does. This should be improved; please open a PR.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79238
Ciao
Dominik ^_^ ^_^
--
Dominik Vogt
IBM Germany