================
@@ -2886,6 +2886,49 @@ class CXXPseudoDestructorExpr : public Expr {
}
};
+/// Represents a C++26 __builtin_type_order(T, U) expression. Used to implement
+/// std::type_order.
+class BuiltinTypeOrderExpr final : public Expr {
----------------
Tsche wrote:
Yeah, unfortunately the builtin trait infrastructure just allows us to return
`bool` or `size_t`. I tried hacking it into TypeTraitExpr, but that was
horrible. Ended up not reusing the type trait parsing either to make this a
little less surprising/magic.
It's not the only builtin we handle this way. `__builtin_source_location` and
`__builtin_bit_cast` are similar.
https://github.com/llvm/llvm-project/pull/216462
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