Fix bug in detecting in-class member initializers

Author: higher-performance

clang/lib/AST/DeclCXX.cpp

@@ -1118,7 +1118,7 @@ void CXXRecordDecl::addedMember(Decl *D) {
     } else if (!T.isCXX98PODType(Context))
       data().PlainOldData = false;
 
-    if (Field->hasAttr<ExplicitInitAttr>() && !Field->hasInClassInitializer())
+    if (Field->hasAttr<ExplicitInitAttr>())
       setHasUninitializedExplicitInitFields(true);
 
     if (T->isReferenceType()) {
@@ -1376,7 +1376,7 @@ void CXXRecordDecl::addedMember(Decl *D) {
           data().ImplicitCopyAssignmentHasConstParam = false;
 
         if (FieldRec->hasUninitializedExplicitInitFields() &&
-            FieldRec->isAggregate() && !Field->hasInClassInitializer())
+            FieldRec->isAggregate())
           setHasUninitializedExplicitInitFields(true);
 
         if (FieldRec->hasUninitializedReferenceMember() &&

clang/test/SemaCXX/uninitialized.cpp

@@ -1490,7 +1490,7 @@ void aggregate() {
   };
 
   struct C {
-    [[clang::requires_explicit_initialization]] int c1; // #FIELD_C1
+    [[clang::requires_explicit_initialization]] int c1 = 2; // #FIELD_C1
     C() = default;  // Test pre-C++20 aggregates
   };