Re: Bug in herd7 [Was: Re: Litmus test for question from Al Viro]

[Alan Stern]

On Mon, Oct 05, 2020 at 05:15:57PM +0200, Luc Maranget wrote:
> > On Sun, Oct 04, 2020 at 12:16:31AM +0900, Akira Yokosawa wrote:
> > > > P1(int *x, int *y)
> > > > {
> > > > 	WRITE_ONCE(*x, READ_ONCE(*y));
> > > 
> > > Looks like this one-liner doesn't provide data-dependency of y -> x on herd7.
> > 
> > You're right.  This is definitely a bug in herd7.
> > 
> > Luc, were you aware of this?
> 
> Hi Alan,
> 
> No I was not aware of it. Now I am, the bug is normally fixed in the master branch of herd git deposit.
> <https://github.com/herd/herdtools7/commit/0f3f8188a326d5816a82fb9970fcd209a2678859>
> 
> Thanks for the report.

I tested the new commit -- it does indeed fix the problem.

Thanks.

Alan