Anastasia added inline comments.

================
Comment at: clang/include/clang/Basic/OpenCLExtensions.def:110
+OPENCLFEAT_INTERNAL(__opencl_c_generic_address_space, 200, ~0U)
+OPENCLFEAT_INTERNAL(__opencl_c_work_group_collective_functions, 200, ~0U)
+OPENCLFEAT_INTERNAL(__opencl_c_atomic_order_acq_rel, 200, ~0U)
----------------
azabaznov wrote:
> Anastasia wrote:
> > Does this need to be in the frontend?
> I can remove features which affect only header from this file. But in this 
> case we need to extend '-cl-ext' to register unknown features/extensions 
> (http://lists.llvm.org/pipermail/cfe-dev/2020-October/066932.html). I think 
> this option functionality extending should be done in a separate commit, so 
> we can keep this kind of features here at least for now. What do you think?
Yes, absolutely let's focus on frontend only features for now. I hope we will 
clarify what we do with the rest in the next few weeks.


================
Comment at: clang/include/clang/Basic/OpenCLOptions.h:105
     }
     OptMap[Ext].Supported = V;
   }
----------------
azabaznov wrote:
> Anastasia wrote:
> > I guess we need to make sure that targets can't conditionally support 
> > features in OpenCL 2.0 or earlier standards.
> This can be done by adding a new method 
> //TargetInfo::setSupportedOpenCL30Features()// which can be called in 
> //::adjust//, does this make sense? I believe now current  options setting 
> (//TargetInfo::setSupportedOpenCLOpts()//) knows nothing about OpenCL version 
> which.
I would prefer to use one method for both. We could check the OpenCL version 
before invoking this or extend it with LangOpts param? Although on second 
thought since we are going this route of adding features into earlier standards 
we could just allow targets to configure in a way they like. i.e. with no extra 
checking per version allowing more flexibility if they don't need to worry 
about being stricktly conformant... as soon as it doesn't generate an integrity 
issue for old standards...


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89869/new/

https://reviews.llvm.org/D89869

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