diff --git a/include/llvm/Argument.h b/include/llvm/Argument.h
index 71c001fbe18..ff8637881eb 100644
--- a/include/llvm/Argument.h
+++ b/include/llvm/Argument.h
@@ -51,6 +51,9 @@ public:
   /// hasByValAttr - Return true if this argument has the byval attribute on it
   /// in its containing function.
   bool hasByValAttr() const;
+  
+  /// getParamAlignment - If this is a byval argument, return its alignment.
+  unsigned getParamAlignment() const;
 
   /// hasNestAttr - Return true if this argument has the nest attribute on
   /// it in its containing function.
diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp
index ce2186f5cd0..0ae0bdb8056 100644
--- a/lib/VMCore/Function.cpp
+++ b/lib/VMCore/Function.cpp
@@ -79,6 +79,12 @@ bool Argument::hasByValAttr() const {
   return getParent()->paramHasAttr(getArgNo()+1, Attribute::ByVal);
 }
 
+unsigned Argument::getParamAlignment() const {
+  assert(getType()->isPointerTy() && "Only pointers have alignments");
+  return getParent()->getParamAlignment(getArgNo()+1);
+  
+}
+
 /// hasNestAttr - Return true if this argument has the nest attribute on
 /// it in its containing function.
 bool Argument::hasNestAttr() const {