diff --git a/clang/include/clang/AST/Expr.h b/clang/include/clang/AST/Expr.h
index c2bb87d3c057..23fd420914f4 100644
--- a/clang/include/clang/AST/Expr.h
+++ b/clang/include/clang/AST/Expr.h
@@ -2382,53 +2382,6 @@ public:
   virtual child_iterator child_end(); 
 };
 
-
-class ParenListExpr : public Expr {
-  Stmt **Exprs;
-  unsigned NumExprs;
-  SourceLocation LParenLoc, RParenLoc;
-
-protected: 
-  virtual void DoDestroy(ASTContext& C);
-  
-public:
-  ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 
-                unsigned numexprs, SourceLocation rparenloc);
-
-  ~ParenListExpr() {}
-
-  /// \brief Build an empty paren list.
-  //explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { }
-  
-  unsigned getNumExprs() const { return NumExprs; }
-  
-  const Expr* getExpr(unsigned Init) const { 
-    assert(Init < getNumExprs() && "Initializer access out of range!");
-    return cast_or_null<Expr>(Exprs[Init]);
-  }
-  
-  Expr* getExpr(unsigned Init) { 
-    assert(Init < getNumExprs() && "Initializer access out of range!");
-    return cast_or_null<Expr>(Exprs[Init]);
-  }
-
-  SourceLocation getLParenLoc() const { return LParenLoc; }
-  SourceLocation getRParenLoc() const { return RParenLoc; }
-
-  virtual SourceRange getSourceRange() const {
-    return SourceRange(LParenLoc, RParenLoc);
-  } 
-  static bool classof(const Stmt *T) {
-    return T->getStmtClass() == ParenListExprClass; 
-  }
-  static bool classof(const ParenListExpr *) { return true; }
-  
-  // Iterators
-  virtual child_iterator child_begin();
-  virtual child_iterator child_end();
-};
-
-  
 //===----------------------------------------------------------------------===//
 // Clang Extensions
 //===----------------------------------------------------------------------===//
diff --git a/clang/include/clang/AST/StmtNodes.def b/clang/include/clang/AST/StmtNodes.def
index 924ad3970f0d..914ea2798b49 100644
--- a/clang/include/clang/AST/StmtNodes.def
+++ b/clang/include/clang/AST/StmtNodes.def
@@ -91,7 +91,6 @@ EXPR(ExtVectorElementExpr  , Expr)
 EXPR(InitListExpr          , Expr)
 EXPR(DesignatedInitExpr    , Expr)
 EXPR(ImplicitValueInitExpr , Expr)
-EXPR(ParenListExpr         , Expr)
 EXPR(VAArgExpr             , Expr)
 
 // GNU Extensions.
diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td b/clang/include/clang/Basic/DiagnosticSemaKinds.td
index cc447385f5e2..61e492b6f6d6 100644
--- a/clang/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td
@@ -2017,9 +2017,6 @@ def err_shufflevector_argument_too_large : Error<
   "index for __builtin_shufflevector must be less than the total number "
   "of vector elements">;
 
-def err_vector_incorrect_num_initializers : Error<
-  "%select{too many|too few}0 elements in vector initialization (expected %1 elements, have %2)">;
-def err_altivec_empty_initializer : Error<"expected initializer">;
 
 def err_stack_const_level : Error<
   "level argument for a stack address builtin must be constant">;
diff --git a/clang/include/clang/Parse/Action.h b/clang/include/clang/Parse/Action.h
index 777f75e5a602..b2be36eb0501 100644
--- a/clang/include/clang/Parse/Action.h
+++ b/clang/include/clang/Parse/Action.h
@@ -825,12 +825,6 @@ public:
     return move(Val);  // Default impl returns operand.
   }
 
-  virtual OwningExprResult ActOnParenListExpr(SourceLocation L, 
-                                              SourceLocation R, 
-                                              MultiExprArg Val) {
-    return ExprEmpty();
-  }
-  
   // Postfix Expressions.
   virtual OwningExprResult ActOnPostfixUnaryOp(Scope *S, SourceLocation OpLoc,
                                                tok::TokenKind Kind,
@@ -907,12 +901,11 @@ public:
     return ExprEmpty();
   }
 
-  virtual OwningExprResult ActOnCastExpr(Scope *S, SourceLocation LParenLoc,
-                                         TypeTy *Ty, SourceLocation RParenLoc, 
-                                         ExprArg Op) {
+  virtual OwningExprResult ActOnCastExpr(SourceLocation LParenLoc, TypeTy *Ty,
+                                         SourceLocation RParenLoc, ExprArg Op) {
     return ExprEmpty();
   }
-    
+
   virtual OwningExprResult ActOnBinOp(Scope *S, SourceLocation TokLoc,
                                       tok::TokenKind Kind,
                                       ExprArg LHS, ExprArg RHS) {
diff --git a/clang/include/clang/Parse/Parser.h b/clang/include/clang/Parse/Parser.h
index 9e785a65ff8a..f2faa1c758d8 100644
--- a/clang/include/clang/Parse/Parser.h
+++ b/clang/include/clang/Parse/Parser.h
@@ -705,11 +705,9 @@ private:
                                               unsigned MinPrec);
   OwningExprResult ParseCastExpression(bool isUnaryExpression,
                                        bool isAddressOfOperand,
-                                       bool &NotCastExpr,
-                                       bool parseParenAsExprList);
+                                       bool &NotCastExpr);
   OwningExprResult ParseCastExpression(bool isUnaryExpression,
-                                       bool isAddressOfOperand = false,
-                                       bool parseParenAsExprList = false);
+                                       bool isAddressOfOperand = false);
   OwningExprResult ParsePostfixExpressionSuffix(OwningExprResult LHS);
   OwningExprResult ParseSizeofAlignofExpression();
   OwningExprResult ParseBuiltinPrimaryExpression();
@@ -735,7 +733,6 @@ private:
   };
   OwningExprResult ParseParenExpression(ParenParseOption &ExprType,
                                         bool stopIfCastExpr,
-                                        bool parseAsExprList,
                                         TypeTy *&CastTy,
                                         SourceLocation &RParenLoc);
   
diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index ce8bb516c090..2c07de6c79ac 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -1784,26 +1784,6 @@ void DesignatedInitExpr::DoDestroy(ASTContext &C) {
   Expr::DoDestroy(C);
 }
 
-ParenListExpr::ParenListExpr(ASTContext& C, SourceLocation lparenloc, 
-                             Expr **exprs, unsigned nexprs,
-                             SourceLocation rparenloc)
-: Expr(ParenListExprClass, QualType(),
-       hasAnyTypeDependentArguments(exprs, nexprs),
-       hasAnyValueDependentArguments(exprs, nexprs)), 
-  NumExprs(nexprs), LParenLoc(lparenloc), RParenLoc(rparenloc) {
-  
-  Exprs = new (C) Stmt*[nexprs];
-  for (unsigned i = 0; i != nexprs; ++i)
-    Exprs[i] = exprs[i];
-}
-
-void ParenListExpr::DoDestroy(ASTContext& C) {
-  DestroyChildren(C);
-  if (Exprs) C.Deallocate(Exprs);
-  this->~ParenListExpr();
-  C.Deallocate(this);
-}
-
 //===----------------------------------------------------------------------===//
 //  ExprIterator.
 //===----------------------------------------------------------------------===//
@@ -2008,14 +1988,6 @@ Stmt::child_iterator ImplicitValueInitExpr::child_end() {
   return child_iterator(); 
 }
 
-// ParenListExpr
-Stmt::child_iterator ParenListExpr::child_begin() {
-  return &Exprs[0];
-}
-Stmt::child_iterator ParenListExpr::child_end() {
-  return &Exprs[0]+NumExprs;
-}
-
 // ObjCStringLiteral
 Stmt::child_iterator ObjCStringLiteral::child_begin() { 
   return &String;
diff --git a/clang/lib/AST/StmtPrinter.cpp b/clang/lib/AST/StmtPrinter.cpp
index a2c04978b030..a5b0df8e45ca 100644
--- a/clang/lib/AST/StmtPrinter.cpp
+++ b/clang/lib/AST/StmtPrinter.cpp
@@ -850,15 +850,6 @@ void StmtPrinter::VisitInitListExpr(InitListExpr* Node) {
   OS << " }";
 }
 
-void StmtPrinter::VisitParenListExpr(ParenListExpr* Node) {
-  OS << "( ";
-  for (unsigned i = 0, e = Node->getNumExprs(); i != e; ++i) {
-    if (i) OS << ", ";
-    PrintExpr(Node->getExpr(i));
-  }
-  OS << " )";
-}
-
 void StmtPrinter::VisitDesignatedInitExpr(DesignatedInitExpr *Node) {
   for (DesignatedInitExpr::designators_iterator D = Node->designators_begin(),
                       DEnd = Node->designators_end();
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index 5d9b8bc7bbc1..d0f02ae95bc1 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -245,10 +245,6 @@ void StmtProfiler::VisitParenExpr(ParenExpr *S) {
   VisitExpr(S);
 }
 
-void StmtProfiler::VisitParenListExpr(ParenListExpr *S) {
-  VisitExpr(S);
-}
-
 void StmtProfiler::VisitUnaryOperator(UnaryOperator *S) {
   VisitExpr(S);
   ID.AddInteger(S->getOpcode());
diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp
index e761e9f3c7d3..0eb21c953244 100644
--- a/clang/lib/CodeGen/CGExprScalar.cpp
+++ b/clang/lib/CodeGen/CGExprScalar.cpp
@@ -475,7 +475,7 @@ Value *ScalarExprEmitter::EmitScalarConversion(Value *Src, QualType SrcType,
   }
   
   // A scalar can be splatted to an extended vector of the same element type
-  if (DstType->isExtVectorType() && !SrcType->isVectorType()) {
+  if (DstType->isExtVectorType() && !isa<VectorType>(SrcType)) {
     // Cast the scalar to element type
     QualType EltTy = DstType->getAsExtVectorType()->getElementType();
     llvm::Value *Elt = EmitScalarConversion(Src, SrcType, EltTy);
diff --git a/clang/lib/Frontend/PrintParserCallbacks.cpp b/clang/lib/Frontend/PrintParserCallbacks.cpp
index 2101a85f4113..c933a2f320dc 100644
--- a/clang/lib/Frontend/PrintParserCallbacks.cpp
+++ b/clang/lib/Frontend/PrintParserCallbacks.cpp
@@ -574,9 +574,8 @@ namespace {
       Out << __FUNCTION__ << "\n";
       return ExprEmpty();
     }
-    virtual OwningExprResult ActOnCastExpr(Scope *S, SourceLocation LParenLoc, 
-                                           TypeTy *Ty, SourceLocation RParenLoc,
-                                           ExprArg Op) {
+    virtual OwningExprResult ActOnCastExpr(SourceLocation LParenLoc, TypeTy *Ty,
+                                           SourceLocation RParenLoc,ExprArg Op){
       Out << __FUNCTION__ << "\n";
       return ExprEmpty();
     }
diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 6e7deef95dc3..62bd9ae73ce0 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -407,13 +407,11 @@ Parser::ParseRHSOfBinaryExpression(OwningExprResult LHS, unsigned MinPrec) {
 /// due to member pointers.
 ///
 Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression,
-                                                     bool isAddressOfOperand,
-                                                     bool parseParenAsExprList){
+                                                     bool isAddressOfOperand) {
   bool NotCastExpr;
   OwningExprResult Res = ParseCastExpression(isUnaryExpression,
                                              isAddressOfOperand,
-                                             NotCastExpr,
-                                             parseParenAsExprList);
+                                             NotCastExpr);
   if (NotCastExpr)
     Diag(Tok, diag::err_expected_expression);
   return move(Res);
@@ -532,8 +530,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression,
 ///
 Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression,
                                                      bool isAddressOfOperand,
-                                                     bool &NotCastExpr,
-                                                     bool parseParenAsExprList){
+                                                     bool &NotCastExpr) {
   OwningExprResult Res(Actions);
   tok::TokenKind SavedKind = Tok.getKind();
   NotCastExpr = false;
@@ -558,7 +555,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression,
     SourceLocation LParenLoc = Tok.getLocation();
     SourceLocation RParenLoc;
     Res = ParseParenExpression(ParenExprType, false/*stopIfCastExr*/,
-                               parseParenAsExprList, CastTy, RParenLoc);
+                               CastTy, RParenLoc);
     if (Res.isInvalid()) return move(Res);
     
     switch (ParenExprType) {
@@ -1024,7 +1021,7 @@ Parser::ParseExprAfterTypeofSizeofAlignof(const Token &OpTok,
     // operands.
     EnterExpressionEvaluationContext Unevaluated(Actions,
                                                  Action::Unevaluated);
-    Operand = ParseParenExpression(ExprType, true/*stopIfCastExpr*/, false,
+    Operand = ParseParenExpression(ExprType, true/*stopIfCastExpr*/,
                                    CastTy, RParenLoc);
     CastRange = SourceRange(LParenLoc, RParenLoc);
 
@@ -1281,8 +1278,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() {
 ///
 Parser::OwningExprResult
 Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr,
-                             bool parseAsExprList, TypeTy *&CastTy, 
-                             SourceLocation &RParenLoc) {
+                             TypeTy *&CastTy, SourceLocation &RParenLoc) {
   assert(Tok.is(tok::l_paren) && "Not a paren expr!");
   GreaterThanIsOperatorScope G(GreaterThanIsOperator, true);
   SourceLocation OpenLoc = ConsumeParen();
@@ -1342,25 +1338,14 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr,
 
       // Parse the cast-expression that follows it next.
       // TODO: For cast expression with CastTy.
-      Result = ParseCastExpression(false, false, true);
+      Result = ParseCastExpression(false);
       if (!Result.isInvalid())
-        Result = Actions.ActOnCastExpr(CurScope, OpenLoc, CastTy, RParenLoc,
-                                       move(Result));
+        Result = Actions.ActOnCastExpr(OpenLoc, CastTy, RParenLoc,move(Result));
       return move(Result);
     }
 
     Diag(Tok, diag::err_expected_lbrace_in_compound_literal);
     return ExprError();
-  } else if (parseAsExprList) {
-    // Parse the expression-list.
-    ExprVector ArgExprs(Actions);
-    CommaLocsTy CommaLocs;
-
-    if (!ParseExpressionList(ArgExprs, CommaLocs)) {
-      ExprType = SimpleExpr;
-      Result = Actions.ActOnParenListExpr(OpenLoc, Tok.getLocation(), 
-                                          move_arg(ArgExprs));
-    }
   } else {
     Result = ParseExpression();
     ExprType = SimpleExpr;
diff --git a/clang/lib/Parse/ParseExprCXX.cpp b/clang/lib/Parse/ParseExprCXX.cpp
index 46526e47dd82..91b4d4d5a962 100644
--- a/clang/lib/Parse/ParseExprCXX.cpp
+++ b/clang/lib/Parse/ParseExprCXX.cpp
@@ -1154,7 +1154,7 @@ Parser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType,
       // will be consumed.
       Result = ParseCastExpression(false/*isUnaryExpression*/,
                                    false/*isAddressofOperand*/,
-                                   NotCastExpr, false);
+                                   NotCastExpr);
     }
 
     // If we parsed a cast-expression, it's really a type-id, otherwise it's
@@ -1196,8 +1196,7 @@ Parser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType,
 
     // Result is what ParseCastExpression returned earlier.
     if (!Result.isInvalid())
-      Result = Actions.ActOnCastExpr(CurScope, LParenLoc, CastTy, RParenLoc, 
-                                     move(Result));
+      Result = Actions.ActOnCastExpr(LParenLoc, CastTy, RParenLoc,move(Result));
     return move(Result);
   }
   
diff --git a/clang/lib/Sema/Sema.h b/clang/lib/Sema/Sema.h
index e183e3a49688..4f7ae7ec0d1e 100644
--- a/clang/lib/Sema/Sema.h
+++ b/clang/lib/Sema/Sema.h
@@ -50,7 +50,6 @@ namespace clang {
   class Stmt;
   class Expr;
   class InitListExpr;
-  class ParenListExpr;
   class DesignatedInitExpr;
   class CallExpr;
   class DeclRefExpr;
@@ -1485,10 +1484,7 @@ public:
   virtual OwningExprResult ActOnCharacterConstant(const Token &);
   virtual OwningExprResult ActOnParenExpr(SourceLocation L, SourceLocation R,
                                           ExprArg Val);
-  virtual OwningExprResult ActOnParenListExpr(SourceLocation L,
-                                              SourceLocation R,
-                                              MultiExprArg Val);
-  
+
   /// ActOnStringLiteral - The specified tokens were lexed as pasted string
   /// fragments (e.g. "foo" "bar" L"baz").
   virtual OwningExprResult ActOnStringLiteral(const Token *Toks,
@@ -1549,14 +1545,8 @@ public:
                                          SourceLocation *CommaLocs,
                                          SourceLocation RParenLoc);
 
-  virtual OwningExprResult ActOnCastExpr(Scope *S, SourceLocation LParenLoc,
-                                         TypeTy *Ty, SourceLocation RParenLoc,
-                                         ExprArg Op);
-  
-  OwningExprResult ConvertParenListExpr(Scope *S, ParenListExpr *E);
-  OwningExprResult ActOnCastOfParenListExpr(Scope *S, SourceLocation LParenLoc,
-                                            SourceLocation RParenLoc,
-                                            ParenListExpr *E, QualType Ty);
+  virtual OwningExprResult ActOnCastExpr(SourceLocation LParenLoc, TypeTy *Ty,
+                                         SourceLocation RParenLoc, ExprArg Op);
 
   virtual OwningExprResult ActOnCompoundLiteral(SourceLocation LParenLoc,
                                                 TypeTy *Ty,
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 23e58de68c97..f00ab5412d32 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -1918,8 +1918,7 @@ Sema::ActOnArraySubscriptExpr(Scope *S, ExprArg Base, SourceLocation LLoc,
        << LHSExp->getSourceRange() << RHSExp->getSourceRange());
   }
   // C99 6.5.2.1p1
-  if (!(IndexExpr->getType()->isIntegerType() &&
-        IndexExpr->getType()->isScalarType()) && !IndexExpr->isTypeDependent())
+  if (!IndexExpr->getType()->isIntegerType() && !IndexExpr->isTypeDependent())
     return ExprError(Diag(LLoc, diag::err_typecheck_subscript_not_integer)
                      << IndexExpr->getSourceRange());
 
@@ -2115,11 +2114,6 @@ Sema::ActOnMemberReferenceExpr(Scope *S, ExprArg Base, SourceLocation OpLoc,
   Expr *BaseExpr = Base.takeAs<Expr>();
   assert(BaseExpr && "no record expression");
 
-  // If BaseExpr is a ParenListExpr then convert it into a standard
-  // paren expr since this is not an altivec initializer.
-  if (ParenListExpr *PE = dyn_cast<ParenListExpr>(BaseExpr))
-    BaseExpr = ConvertParenListExpr(S, PE).takeAs<Expr>();
-  
   // Perform default conversions.
   DefaultFunctionArrayConversion(BaseExpr);
 
@@ -2695,11 +2689,6 @@ Sema::ActOnCallExpr(Scope *S, ExprArg fn, SourceLocation LParenLoc,
   FunctionDecl *FDecl = NULL;
   NamedDecl *NDecl = NULL;
   DeclarationName UnqualifiedName;
-  
-  // If the function is a ParenListExpr, then convert it into a standard
-  // paren expr since this is not an altivec initializer.
-  if (ParenListExpr *PE = dyn_cast<ParenListExpr>(Fn))
-    Fn = ConvertParenListExpr(S, PE).takeAs<Expr>();
 
   if (getLangOptions().CPlusPlus) {
     // Determine whether this is a dependent call inside a C++ template,
@@ -3101,7 +3090,7 @@ bool Sema::CheckExtVectorCast(SourceRange R, QualType DestTy, QualType SrcTy) {
 }
 
 Action::OwningExprResult
-Sema::ActOnCastExpr(Scope *S, SourceLocation LParenLoc, TypeTy *Ty,
+Sema::ActOnCastExpr(SourceLocation LParenLoc, TypeTy *Ty,
                     SourceLocation RParenLoc, ExprArg Op) {
   CastExpr::CastKind Kind = CastExpr::CK_Unknown;
   
@@ -3110,10 +3099,6 @@ Sema::ActOnCastExpr(Scope *S, SourceLocation LParenLoc, TypeTy *Ty,
 
   Expr *castExpr = Op.takeAs<Expr>();
   QualType castType = QualType::getFromOpaquePtr(Ty);
-  
-  // If the Expr being casted is a ParenListExpr, handle it specially.
-  if (ParenListExpr *PE = dyn_cast<ParenListExpr>(castExpr))
-    return ActOnCastOfParenListExpr(S, LParenLoc, RParenLoc, PE, castType);
 
   if (CheckCastTypes(SourceRange(LParenLoc, RParenLoc), castType, castExpr, 
                      Kind))
@@ -3123,68 +3108,6 @@ Sema::ActOnCastExpr(Scope *S, SourceLocation LParenLoc, TypeTy *Ty,
                                             LParenLoc, RParenLoc));
 }
 
-/// This is not an AltiVec-style cast, so turn the ParenListExpr into a sequence
-/// of comma binary operators.
-Action::OwningExprResult
-Sema::ConvertParenListExpr(Scope *S, ParenListExpr *E) {
-  OwningExprResult Result(*this, E->getExpr(0));
-  
-  for (unsigned i = 1, e = E->getNumExprs(); i != e && !Result.isInvalid(); ++i)
-    Result = ActOnBinOp(S, E->getExprLoc(), tok::comma, move(Result),
-                        Owned(E->getExpr(i)));
-  return move(Result);
-}
-
-Action::OwningExprResult
-Sema::ActOnCastOfParenListExpr(Scope *S, SourceLocation LParenLoc,
-                               SourceLocation RParenLoc,
-                               ParenListExpr *E, QualType Ty) {
-  // If this is an altivec initializer, '(' type ')' '(' init, ..., init ')' 
-  // then handle it as such.
-  if (getLangOptions().AltiVec && Ty->isVectorType()) {
-    if (E->getNumExprs() == 0) {
-      Diag(E->getExprLoc(), diag::err_altivec_empty_initializer);
-      return ExprError();
-    }
-
-    llvm::SmallVector<Expr *, 8> initExprs;
-    for (unsigned i = 0, e = E->getNumExprs(); i != e; ++i)
-      initExprs.push_back(E->getExpr(i));
-
-    // FIXME: This means that pretty-printing the final AST will produce curly
-    // braces instead of the original commas.
-    InitListExpr *E = new (Context) InitListExpr(LParenLoc, &initExprs[0], 
-                                                 initExprs.size(), RParenLoc);
-    E->setType(Ty);
-    return ActOnCompoundLiteral(LParenLoc, Ty.getAsOpaquePtr(), RParenLoc, 
-                                Owned(E));
-  } else {
-    // This is not an AltiVec-style cast, so turn the ParenListExpr into a 
-    // sequence of BinOp comma operators.
-    OwningExprResult Result = ConvertParenListExpr(S, E);
-    Expr *castExpr = (Expr *)Result.get();
-    CastExpr::CastKind Kind = CastExpr::CK_Unknown;
-
-    if (CheckCastTypes(SourceRange(LParenLoc, RParenLoc), Ty, castExpr, Kind))
-      return ExprError();
-    
-    return Owned(new (Context) CStyleCastExpr(Ty.getNonReferenceType(),
-                                              CastExpr::CK_Unknown, 
-                                              Result.takeAs<Expr>(), Ty,
-                                              LParenLoc, RParenLoc));
-  }
-}
-
-Action::OwningExprResult Sema::ActOnParenListExpr(SourceLocation L,
-                                                  SourceLocation R,
-                                                  MultiExprArg Val) {
-  unsigned nexprs = Val.size();
-  Expr **exprs = reinterpret_cast<Expr**>(Val.release());
-  assert((exprs != 0) && "ActOnParenListExpr() missing expr list");
-  Expr *expr = new (Context) ParenListExpr(Context, L, exprs, nexprs, R);
-  return Owned(expr);
-}
-
 /// Note that lhs is not null here, even if this is the gnu "x ?: y" extension.
 /// In that case, lhs = cond.
 /// C99 6.5.15
@@ -3209,8 +3132,6 @@ QualType Sema::CheckConditionalOperands(Expr *&Cond, Expr *&LHS, Expr *&RHS,
   }
 
   // Now check the two expressions.
-  if (LHSTy->isVectorType() || RHSTy->isVectorType())
-    return CheckVectorOperands(QuestionLoc, LHS, RHS);
 
   // If both operands have arithmetic type, do the usual arithmetic conversions
   // to find a common type: C99 6.5.15p3,5.
diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
index 1e564ce45fbb..29113822f730 100644
--- a/clang/lib/Sema/SemaInit.cpp
+++ b/clang/lib/Sema/SemaInit.cpp
@@ -805,47 +805,16 @@ void InitListChecker::CheckVectorType(InitListExpr *IList, QualType DeclType,
                                       unsigned &StructuredIndex) {
   if (Index < IList->getNumInits()) {
     const VectorType *VT = DeclType->getAsVectorType();
-    unsigned maxElements = VT->getNumElements();
-    unsigned numEltsInit = 0;
+    int maxElements = VT->getNumElements();
     QualType elementType = VT->getElementType();
     
-    if (!SemaRef.getLangOptions().OpenCL) {
-      for (unsigned i = 0; i < maxElements; ++i, ++numEltsInit) {
-        // Don't attempt to go past the end of the init list
-        if (Index >= IList->getNumInits())
-          break;
-        CheckSubElementType(IList, elementType, Index,
-                            StructuredList, StructuredIndex);
-      }
-    } else {
-      // OpenCL initializers allows vectors to be constructed from vectors.
-      for (unsigned i = 0; i < maxElements; ++i) {
-        // Don't attempt to go past the end of the init list
-        if (Index >= IList->getNumInits())
-          break;
-        QualType IType = IList->getInit(Index)->getType();
-        if (!IType->isVectorType()) {
-          CheckSubElementType(IList, elementType, Index,
-                              StructuredList, StructuredIndex);
-          ++numEltsInit;
-        } else {
-          const VectorType *IVT = IType->getAsVectorType();
-          unsigned numIElts = IVT->getNumElements();
-          QualType VecType = SemaRef.Context.getExtVectorType(elementType,
-                                                              numIElts);
-          CheckSubElementType(IList, VecType, Index,
-                              StructuredList, StructuredIndex);
-          numEltsInit += numIElts;
-        }
-      }
+    for (int i = 0; i < maxElements; ++i) {
+      // Don't attempt to go past the end of the init list
+      if (Index >= IList->getNumInits())
+        break;
+      CheckSubElementType(IList, elementType, Index,
+                          StructuredList, StructuredIndex);
     }
-    
-    // OpenCL & AltiVec require all elements to be initialized.
-    if (numEltsInit != maxElements)
-      if (SemaRef.getLangOptions().OpenCL || SemaRef.getLangOptions().AltiVec)
-        SemaRef.Diag(IList->getSourceRange().getBegin(),
-                     diag::err_vector_incorrect_num_initializers)
-          << (numEltsInit < maxElements) << maxElements << numEltsInit;
   }
 }
 
diff --git a/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp b/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
index 7a09210fe048..186c98cf53ec 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
@@ -638,20 +638,6 @@ TemplateExprInstantiator::VisitInitListExpr(InitListExpr *E) {
                                E->getRBraceLoc());
 }
 
-Sema::OwningExprResult 
-TemplateExprInstantiator::VisitParenListExpr(ParenListExpr *E) {
-  ASTOwningVector<&ActionBase::DeleteExpr, 4> Inits(SemaRef);
-  for (unsigned I = 0, N = E->getNumExprs(); I != N; ++I) {
-    OwningExprResult Init = Visit(E->getExpr(I));
-    if (Init.isInvalid())
-      return SemaRef.ExprError();
-    Inits.push_back(Init.takeAs<Expr>());
-  }
-
-  return SemaRef.ActOnParenListExpr(E->getLParenLoc(), E->getRParenLoc(),
-                                    move_arg(Inits));
-}
-
 Sema::OwningExprResult 
 TemplateExprInstantiator::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
   Designation Desig;
@@ -900,7 +886,7 @@ TemplateExprInstantiator::VisitCStyleCastExpr(CStyleCastExpr *E) {
   if (SubExpr.isInvalid())
     return SemaRef.ExprError();
   
-  return SemaRef.ActOnCastExpr(/*Scope=*/0, E->getLParenLoc(), 
+  return SemaRef.ActOnCastExpr(E->getLParenLoc(), 
                                ExplicitTy.getAsOpaquePtr(),
                                E->getRParenLoc(),
                                move(SubExpr));
diff --git a/clang/test/Sema/altivec-init.c b/clang/test/Sema/altivec-init.c
deleted file mode 100644
index 6185186903b0..000000000000
--- a/clang/test/Sema/altivec-init.c
+++ /dev/null
@@ -1,16 +0,0 @@
-// RUN: clang-cc %s -faltivec -verify -pedantic -fsyntax-only -fblocks=0
-
-typedef int v4 __attribute((vector_size(16)));
-typedef short v8 __attribute((vector_size(16)));
-
-v8 foo(void) { 
-  v8 a;
-  v4 b;
-  a = (v8){4, 2}; // expected-error {{too few elements in vector initialization (expected 8 elements, have 2)}}
-  b = (v4)(5, 6, 7, 8, 9); // expected-warning {{excess elements in vector initializer}}
-  b = (v4)(5, 6, 8, 8.0f);
-  return (v8){0, 1, 2, 3, 1, 2, 3, 4};
-
-  // FIXME: test that (type)(fn)(args) still works with -faltivec
-  // FIXME: test that c++ overloaded commas still work -faltivec
-}
diff --git a/clang/tools/clang-cc/clang-cc.cpp b/clang/tools/clang-cc/clang-cc.cpp
index a7cff1d1a27a..e935baa27f3a 100644
--- a/clang/tools/clang-cc/clang-cc.cpp
+++ b/clang/tools/clang-cc/clang-cc.cpp
@@ -385,10 +385,6 @@ OverflowChecking("ftrapv",
                  llvm::cl::desc("Trap on integer overflow"),
                  llvm::cl::init(false));
 
-static llvm::cl::opt<bool>
-AltiVec("faltivec", llvm::cl::desc("Enable AltiVec vector initializer syntax"),
-                    llvm::cl::init(false));
-
 static llvm::cl::opt<bool>
 ObjCSenderDispatch("fobjc-sender-dependent-dispatch",
 				 llvm::cl::desc("Enable sender-dependent dispatch for"
@@ -505,9 +501,6 @@ static void InitializeLangOptions(LangOptions &Options, LangKind LK){
   if (ObjCEnableGCBitmapPrint)
     Options.ObjCGCBitmapPrint = 1;
   
-  if (AltiVec)
-    Options.AltiVec = 1;
-  
   Options.setVisibilityMode(SymbolVisibility);
   Options.OverflowChecking = OverflowChecking;
 }