Revert r107828 and r107827, the fix for PR7556, which seems to be
breaking bootstrap on Linux.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107837 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaInit.cpp b/lib/Sema/SemaInit.cpp
index 5571c1b..536222c 100644
--- a/lib/Sema/SemaInit.cpp
+++ b/lib/Sema/SemaInit.cpp
@@ -2772,7 +2772,8 @@
       //    zero-initialized and, if T’s implicitly-declared default
       //    constructor is non-trivial, that constructor is called.
       if ((ClassDecl->getTagKind() == TTK_Class ||
-           ClassDecl->getTagKind() == TTK_Struct)) {
+           ClassDecl->getTagKind() == TTK_Struct) &&
+          !ClassDecl->hasTrivialConstructor()) {
         Sequence.AddZeroInitializationStep(Entity.getType());
         return TryConstructorInitialization(S, Entity, Kind, 0, 0, T, Sequence);        
       }
@@ -3837,7 +3838,7 @@
       } else if (Kind.getKind() == InitializationKind::IK_Value &&
                  S.getLangOptions().CPlusPlus &&
                  !Kind.isImplicitValueInit()) {
-        CurInit = S.Owned(new (S.Context) CXXScalarValueInitExpr(Step->Type,
+        CurInit = S.Owned(new (S.Context) CXXZeroInitValueExpr(Step->Type,
                                                    Kind.getRange().getBegin(),
                                                     Kind.getRange().getEnd()));
       } else {