Re: [LTP] [PATCH v1] syscalls/signal06: add volatile to loop variable

[Petr Vorel <pvorel@suse.cz>]

Hi Edward,

> Hi!
> > I think I finally understand what you mean by this now; it is rather
> > strange that the volatility of D does not protect loop from being
> > optimized away by the compiler.  I don't have a good explanation as to
> > why it's happening but I'm not sure how to evaluate what's going on
> > either.  Should I do anything to move this patch forward?

> It all boils down if we want to work around something that looks like a
> compiler bug in tests or not. I would be inclined not to do so since LTP
> was littered with quite a lot of workarounds for glibc/compiler bugs and
> we spend quite some time cleaning that mess up. But in this case I can
> agree that this is a borderland issue so I'm not strongly against that
> either.

Edward, which which clang version requires it? It'd be nice to document it, so
that it can be removed in the future.
Is there any bug report for it?

Kind regards,
Petr

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