Add EmitShuffleVector helper method.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44806 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CodeGen/CodeGenFunction.h b/CodeGen/CodeGenFunction.h
index 6ae256d..d50db7d 100644
--- a/CodeGen/CodeGenFunction.h
+++ b/CodeGen/CodeGenFunction.h
@@ -391,6 +391,8 @@
   llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E);
   llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
   
+  llvm::Value *EmitShuffleVector(llvm::Value* V1, llvm::Value *V2, ...);
+                                 
   llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E);
 
   //===--------------------------------------------------------------------===//