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diff --git a/contrib/llvm/tools/clang/lib/CodeGen/CGCall.h b/contrib/llvm/tools/clang/lib/CodeGen/CGCall.h
new file mode 100644
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--- /dev/null
+++ b/contrib/llvm/tools/clang/lib/CodeGen/CGCall.h
@@ -0,0 +1,166 @@
+//===----- CGCall.h - Encapsulate calling convention details ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// These classes wrap the information about a call or function
+// definition used to handle ABI compliancy.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CODEGEN_CGCALL_H
+#define CLANG_CODEGEN_CGCALL_H
+
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/Value.h"
+#include "clang/AST/Type.h"
+#include "clang/AST/CanonicalType.h"
+
+#include "CGValue.h"
+
+// FIXME: Restructure so we don't have to expose so much stuff.
+#include "ABIInfo.h"
+
+namespace llvm {
+  struct AttributeWithIndex;
+  class Function;
+  class Type;
+  class Value;
+
+  template<typename T, unsigned> class SmallVector;
+}
+
+namespace clang {
+  class ASTContext;
+  class Decl;
+  class FunctionDecl;
+  class ObjCMethodDecl;
+  class VarDecl;
+
+namespace CodeGen {
+  typedef llvm::SmallVector<llvm::AttributeWithIndex, 8> AttributeListType;
+
+  /// CallArgList - Type for representing both the value and type of
+  /// arguments in a call.
+  typedef llvm::SmallVector<std::pair<RValue, QualType>, 16> CallArgList;
+
+  /// FunctionArgList - Type for representing both the decl and type
+  /// of parameters to a function. The decl must be either a
+  /// ParmVarDecl or ImplicitParamDecl.
+  typedef llvm::SmallVector<std::pair<const VarDecl*, QualType>,
+                            16> FunctionArgList;
+
+  /// CGFunctionInfo - Class to encapsulate the information about a
+  /// function definition.
+  class CGFunctionInfo : public llvm::FoldingSetNode {
+    struct ArgInfo {
+      CanQualType type;
+      ABIArgInfo info;
+    };
+
+    /// The LLVM::CallingConv to use for this function (as specified by the
+    /// user).
+    unsigned CallingConvention;
+
+    /// The LLVM::CallingConv to actually use for this function, which may
+    /// depend on the ABI.
+    unsigned EffectiveCallingConvention;
+
+    /// Whether this function is noreturn.
+    bool NoReturn;
+
+    unsigned NumArgs;
+    ArgInfo *Args;
+
+    /// How many arguments to pass inreg.
+    unsigned RegParm;
+
+  public:
+    typedef const ArgInfo *const_arg_iterator;
+    typedef ArgInfo *arg_iterator;
+
+    CGFunctionInfo(unsigned CallingConvention,
+                   bool NoReturn,
+                   unsigned RegParm,
+                   CanQualType ResTy,
+                   const llvm::SmallVectorImpl<CanQualType> &ArgTys);
+    ~CGFunctionInfo() { delete[] Args; }
+
+    const_arg_iterator arg_begin() const { return Args + 1; }
+    const_arg_iterator arg_end() const { return Args + 1 + NumArgs; }
+    arg_iterator arg_begin() { return Args + 1; }
+    arg_iterator arg_end() { return Args + 1 + NumArgs; }
+
+    unsigned  arg_size() const { return NumArgs; }
+
+    bool isNoReturn() const { return NoReturn; }
+
+    /// getCallingConvention - Return the user specified calling
+    /// convention.
+    unsigned getCallingConvention() const { return CallingConvention; }
+
+    /// getEffectiveCallingConvention - Return the actual calling convention to
+    /// use, which may depend on the ABI.
+    unsigned getEffectiveCallingConvention() const {
+      return EffectiveCallingConvention;
+    }
+    void setEffectiveCallingConvention(unsigned Value) {
+      EffectiveCallingConvention = Value;
+    }
+
+    unsigned getRegParm() const { return RegParm; }
+
+    CanQualType getReturnType() const { return Args[0].type; }
+
+    ABIArgInfo &getReturnInfo() { return Args[0].info; }
+    const ABIArgInfo &getReturnInfo() const { return Args[0].info; }
+
+    void Profile(llvm::FoldingSetNodeID &ID) {
+      ID.AddInteger(getCallingConvention());
+      ID.AddBoolean(NoReturn);
+      ID.AddInteger(RegParm);
+      getReturnType().Profile(ID);
+      for (arg_iterator it = arg_begin(), ie = arg_end(); it != ie; ++it)
+        it->type.Profile(ID);
+    }
+    template<class Iterator>
+    static void Profile(llvm::FoldingSetNodeID &ID,
+                        const FunctionType::ExtInfo &Info,
+                        CanQualType ResTy,
+                        Iterator begin,
+                        Iterator end) {
+      ID.AddInteger(Info.getCC());
+      ID.AddBoolean(Info.getNoReturn());
+      ID.AddInteger(Info.getRegParm());
+      ResTy.Profile(ID);
+      for (; begin != end; ++begin) {
+        CanQualType T = *begin; // force iterator to be over canonical types
+        T.Profile(ID);
+      }
+    }
+  };
+  
+  /// ReturnValueSlot - Contains the address where the return value of a 
+  /// function can be stored, and whether the address is volatile or not.
+  class ReturnValueSlot {
+    llvm::PointerIntPair<llvm::Value *, 1, bool> Value;
+
+  public:
+    ReturnValueSlot() {}
+    ReturnValueSlot(llvm::Value *Value, bool IsVolatile)
+      : Value(Value, IsVolatile) {}
+
+    bool isNull() const { return !getValue(); }
+    
+    bool isVolatile() const { return Value.getInt(); }
+    llvm::Value *getValue() const { return Value.getPointer(); }
+  };
+  
+}  // end namespace CodeGen
+}  // end namespace clang
+
+#endif