================
@@ -1356,6 +1356,8 @@ NormalizedConstraint::fromConstraintExpr(Sema &S,
NamedDecl *D, const Expr *E) {
S, CSE->getExprLoc(),
Sema::InstantiatingTemplate::ConstraintNormalization{}, D,
CSE->getSourceRange());
+ if (Inst.isInvalid())
+ return std::nullptr;
----------------
Sirraide wrote:
```suggestion
return std::nullopt;
```
Typo.
https://github.com/llvm/llvm-project/pull/86943
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