Fix delegating constructors stylistic issues.

Material bugfixes to come this afternoon.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130782 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGClass.cpp

@@ -726,12 +726,13 @@ void CodeGenFunction::EmitCtorPrologue(const CXXConstructorDecl *CD,
        B != E; ++B) {
     CXXCtorInitializer *Member = (*B);
     
-    if (Member->isBaseInitializer())
+    if (Member->isBaseInitializer()) {
       EmitBaseInitializer(*this, ClassDecl, Member, CtorType);
-    else if (Member->isAnyMemberInitializer())
+    } else {
+      assert(Member->isAnyMemberInitializer() &&
+            "Delegating initializer on non-delegating constructor");
       MemberInitializers.push_back(Member);
-    else
-      llvm_unreachable("Delegating initializer on non-delegating constructor");
+    }
   }
 
   InitializeVTablePointers(ClassDecl);

lib/CodeGen/CGExprCXX.cpp

@@ -404,17 +404,25 @@ CodeGenFunction::EmitCXXConstructExpr(const CXXConstructExpr *E,
   }
   else {
     CXXCtorType Type;
-    CXXConstructExpr::ConstructionKind K = E->getConstructionKind();
-    if (K == CXXConstructExpr::CK_Delegating) {
+    bool ForVirtualBase = false;
+
+    switch (E->getConstructionKind()) {
+     case CXXConstructExpr::CK_Delegating:
       // We should be emitting a constructor; GlobalDecl will assert this
       Type = CurGD.getCtorType();
-    } else {
-      Type = (E->getConstructionKind() == CXXConstructExpr::CK_Complete)
-             ? Ctor_Complete : Ctor_Base;
-    }
+      break;
 
-    bool ForVirtualBase = 
-      E->getConstructionKind() == CXXConstructExpr::CK_VirtualBase;
+     case CXXConstructExpr::CK_Complete:
+      Type = Ctor_Complete;
+      break;
+
+     case CXXConstructExpr::CK_VirtualBase:
+      ForVirtualBase = true;
+      // fall-through
+
+     case CXXConstructExpr::CK_NonVirtualBase:
+      Type = Ctor_Base;
+    }
     
     // Call the constructor.
     EmitCXXConstructorCall(CD, Type, ForVirtualBase, Dest.getAddr(),

lib/Sema/SemaInit.cpp

@@ -4060,8 +4060,7 @@ InitializationSequence::Perform(Sema &S,
           ConstructKind = Entity.getBaseSpecifier()->isVirtual() ?
             CXXConstructExpr::CK_VirtualBase :
             CXXConstructExpr::CK_NonVirtualBase;
-        }
-        if (Entity.getKind() == InitializedEntity::EK_Delegating) {
+        } else if (Entity.getKind() == InitializedEntity::EK_Delegating) {
           ConstructKind = CXXConstructExpr::CK_Delegating;
         }