Re: [boost] [atomic, x86] need another pair of eyes

Subject: Re: [boost] [atomic, x86] need another pair of eyes
From: Peter Dimov (lists_at_[hidden])
Date: 2012-12-19 13:34:57

Tim Blechmann wrote:
> >> >   imo, the platform_fence_before/after is not necessary ...
> >> >
> >> > tim
> >> >
> > If there is a bug, _removing_ barriers isn't going to solve it.  Or do I
> > misunderstand the situation?
> > (I agree that the barriers may be unnecessary, but I don't see how it 
> > helps
> > with the test failures.)
>
> of course, it is completely unrelated to the test failures, i was just
> surprised to see these barriers ...

There's nothing surprising in having compiler barriers before release 
operations and after acquire operations.