================
@@ -5637,6 +5638,27 @@ static bool EvaluateUnaryTypeTrait(Sema &Self, TypeTrait
UTT,
return false;
case UTT_IsTriviallyEqualityComparable:
return isTriviallyEqualityComparableType(Self, T, KeyLoc);
+ case UTT_IsImplicitLifetime: {
+ DiagnoseVLAInCXXTypeTrait(Self, TInfo,
+ tok::kw___builtin_is_implicit_lifetime);
+ QualType UnqualT = T->getCanonicalTypeUnqualified();
+ if (UnqualT->isScalarType())
+ return true;
+ if (UnqualT->isArrayType())
+ return true;
+
+ const CXXRecordDecl *RD = UnqualT->getAsCXXRecordDecl();
+ if (!RD)
+ return false;
+ if (UnqualT->isAggregateType())
+ if (!RD->getDestructor()->isUserProvided())
+ return true;
+ if (RD->hasTrivialDestructor())
----------------
Endilll wrote:
> but X and Y are not aggregates because they have user-declared constructors
I'm sorry, but they only thing I see there are user-declared _destructors_, not
constructors.
https://github.com/llvm/llvm-project/pull/101807
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