Re: Implement C11 _Atomic

[Andrew MacLeod <amacleod@redhat.com>]

On 11/21/2013 06:23 PM, Hans-Peter Nilsson wrote:
> On Thu, 21 Nov 2013, Andrew MacLeod wrote:
>> I can bootstrap and check this on x86 to make sure it doesnt affect anything,
>> and you can fool with it and see if you can get your desired results with your
>> port.
> Success!
>
> For the record, tested together with the attached patch for the
> CRIS ports, both regularly (not finished, but done with the C
> testsuite part and no regressions there), as well as manually
> for the attached test-programs, compiling and inspecting output
> for different sub-targets and checking that data layout,
> alignment and size is as intended.
>
> Too bad about the libstdc++ atomics, but with this/these patches
> at least I'll be able to tell people that _Atomic for C11 works.
>
> Thanks to the both of you!
>
>
All we need is a way to communicate the atomic property to the type 
within the libstdc++ template...  We cant use _Atomic there :-P

  I originally had created an __attribute__ ((atomic)) whch you could 
apply to the atomic template type and get the same behaviour  as 
_Atomic, Im not sure if there is another way or not.  The atomic 
template is generic, so I couldn't think of any special macro wizardry 
we could define...

Andrew