================
@@ -343,7 +343,11 @@ namespace {
}
}
- llvm_unreachable("no Attr* for AttributedType*");
+ // The AttributedType can be inherited from another declarator, for
+ // example when __typeof__ reuses a type built for a different
+ // declaration, in which case there is no entry for it in this
+ // TypeProcessingState. Return null in that case.
+ return nullptr;
----------------
ahatanak wrote:
To clarify: I read your second paragraph as suggesting we register an `Attr *`
before `fillAttributedTypeLoc()` is called, so that lookup never comes up
empty. But the question then becomes which `Attr *` to register.
`__typeof__(s->f1)` doesn't create any new `Attr *` of its own, so the only one
available is the one on `NullabilityAtomicTypeofS::f1`, which has the problem I
described above.
https://github.com/llvm/llvm-project/pull/220139
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