================
@@ -3619,6 +3619,19 @@ class Sema final : public SemaBase {
SourceLocation NameLoc,
bool IsTemplateTypeArg);
+ /// Computes the unique Root Signature identifier from the given signature,
+ /// then lookup if there is a previousy created Root Signature decl.
+ ///
+ /// Returns the identifier and if it was found
+ std::pair<IdentifierInfo *, bool>
----------------
hekota wrote:
Nit: consider using `std::optional<IdentifierInfo*>`.
https://github.com/llvm/llvm-project/pull/143184
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