From: Chris Lattner <sabre@nondot.org>
Date: Thu, 10 Jul 2008 00:28:34 +0000 (+0000)
Subject: add a helper method for code that wants to handle vector
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=cd4e5b0417aa729905da91cd7e43f0c4f704be3d;p=oota-llvm.git

add a helper method for code that wants to handle vector
constants by element without caring how they are formed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53382 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Constant.h b/include/llvm/Constant.h
index c45ec2e77ed..2679c107897 100644
--- a/include/llvm/Constant.h
+++ b/include/llvm/Constant.h
@@ -17,6 +17,7 @@
 #include "llvm/User.h"
 
 namespace llvm {
+  template<typename T> class SmallVectorImpl;
 
 /// This is an important base class in LLVM. It provides the common facilities
 /// of all constant values in an LLVM program. A constant is a value that is
@@ -79,6 +80,11 @@ public:
   void setOperand(unsigned i, Constant *C) {
     User::setOperand(i, C);
   }
+  
+  /// getVectorElements - This method, which is only valid on constant of vector
+  /// type, returns the elements of the vector in the specified smallvector.
+  /// This handles breaking down a vector undef into undef elements, etc.
+  void getVectorElements(SmallVectorImpl<Constant*> &Elts) const;
 
   /// destroyConstant - Called if some element of this constant is no longer
   /// valid.  At this point only other constants may be on the use_list for this