jdenny added a comment.

In D61509#1491898 <https://reviews.llvm.org/D61509#1491898>, @ABataev wrote:

> Again, I don't see a single point why would we need this. I don't think there 
> is a big difference between the location of pragma keyword and `omp` keyword.


@lebedev.ri : You said you're not sure changing the current start location 
would matter for diagnostics, but do you believe we need to be concerned about 
backward compatibility here for `Rewriter` users?

> Annotation tokens already have extra locations. Do you need the third one?

Some pragmas already use that extra location.  Roman suggested consistency 
among all pragmas, and it would be nice if they stored the `#pragma` location 
in a consistent manner.

> Plus, how you're going to store this location in the AST? We don't need any 
> extra base classes. If you want to store this in AST nodes, add a new field 
> to the existing classes and extended constructors/Create/(de-)serialization 
> functions.

If we're just adjusting OpenMP, I agree.  However, Roman suggested consistency 
among all pragmas, and I thought the base clase would make that easier.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61509/new/

https://reviews.llvm.org/D61509



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