[gimple] assignments to volatile

[Mark Mitchell]

Mike Stump wrote:

> So, could you please restate what you want to do.  Do you want gcc to
> follow the language standard, or, would you rather ignore the
> standard and just invent some rules on the fly for gcc to follow?

There's no need to take that tone.  Nathan and I have both participated
in standards committees and in making G++ much more conformant to the
standard.  Of course we don't want to make things up on the fly.

But, you are asserting that the standard unambiguously mandates a
particular behavior.  I, at least, don't think that's clear.  I also
don't think that in this area the standard is more important than
existing practice, both in GCC and in other compilers.

Rather than all this discussion of the standard, I'd like to see a list
of the cases that are controversial, together with a table showing what
compilers do reads and which do not.

Nathan, perhaps you can put together the table?  And then we can ask
volunteers to start filling it in?

Thanks,

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713