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Re: Simple contribution please?

From: Samuel Thibault
Subject: Re: Simple contribution please?
Date: Wed, 17 Aug 2016 15:21:10 +0200
User-agent: Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30)

Richard Braun, on Wed 17 Aug 2016 14:55:35 +0200, wrote:
> On Wed, Aug 17, 2016 at 10:50:56AM +0200, Samuel Thibault wrote:
> > Mmm. This is a clobber, so it's supposed to indicate what is written,
> > not what is read :) But I agree with the "move" rationale, let's be safe
> > (it doesn't really matter here, there's a memory compiler barrier at the
> > function call anyway).
> My thinking was rather to let gcc know that memory is being read so
> that it wouldn't generate instructions that might change it in
> parallel,

Sure, that's what I meant when citing "move" from the URL.


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