RIscRIpt added inline comments.

================
Comment at: clang/include/clang/Basic/AttrDocs.td:3543
+definition or a return statement. It has no effect on function declarations.
+This attribute permits constant evaluation of ``[[msvc::constexpr]]`` functions
+in ``[[msvc::constexpr]] return`` statements inside ``constexpr`` or
----------------
RIscRIpt wrote:
> erichkeane wrote:
> > Does it prohibit the inverse?  I think this documentation overall needs a 
> > much better description of what the semantics are here, particularly 
> > anything that you found in experimentation on the MS implementation.
> > Does it prohibit the inverse?
> Do you mean, can `[[msvc::constexpr]]` function call `constexpr` and remain 
> const-evaluated? Yes.
> 
> I elaborated on semantics in non-inline comment.
Tried to make doc notes more clear.


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  https://reviews.llvm.org/D134475/new/

https://reviews.llvm.org/D134475

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