================
@@ -268,17 +268,34 @@ class alignas(8) Decl {
/// }
/// void A::f(); // SemanticDC == namespace 'A'
/// // LexicalDC == global namespace
- llvm::PointerUnion<DeclContext*, MultipleDC*> DeclCtx;
+ llvm::PointerIntPair<
----------------
erichkeane wrote:
I don't think it ends up being 'manual bit twiddling' so much as 3 values in an
enum, and I also found the `getPointer().getPointer()` pretty mind-bending, but
at least it is somewhat well hidden in stuff we won't touch for a while, so I
won't insist.
https://github.com/llvm/llvm-project/pull/87361
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