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diff --git a/utils/TableGen/CodeGenIntrinsics.h b/utils/TableGen/CodeGenIntrinsics.h
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+++ b/utils/TableGen/CodeGenIntrinsics.h
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+//===- CodeGenIntrinsic.h - Intrinsic Class Wrapper ------------*- C++ -*--===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Chris Lattner and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a wrapper class for the 'Intrinsic' TableGen class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CODEGEN_INTRINSIC_H
+#define CODEGEN_INTRINSIC_H
+
+#include <string>
+#include <vector>
+#include "llvm/CodeGen/ValueTypes.h"
+
+namespace llvm {
+  class Record;
+  class RecordKeeper;
+  class CodeGenTarget;
+
+  struct CodeGenIntrinsic {
+    Record *TheDef;            // The actual record defining this intrinsic.
+    std::string Name;          // The name of the LLVM function "llvm.bswap.i32"
+    std::string EnumName;      // The name of the enum "bswap_i32"
+    std::string GCCBuiltinName;// Name of the corresponding GCC builtin, or "".
+    std::string TargetPrefix;  // Target prefix, e.g. "ppc" for t-s intrinsics.
+    
+    /// ArgTypes - The type primitive enum value for the return value and all
+    /// of the arguments.  These are things like Type::IntegerTyID.
+    std::vector<std::string> ArgTypes;
+    
+    /// ArgVTs - The MVT::ValueType for each argument type.  Note that this list
+    /// is only populated when in the context of a target .td file.  When
+    /// building Intrinsics.td, this isn't available, because we don't know the
+    /// target pointer size.
+    std::vector<MVT::ValueType> ArgVTs;
+    
+    /// ArgTypeDefs - The records for each argument type.
+    ///
+    std::vector<Record*> ArgTypeDefs;
+    
+    // Memory mod/ref behavior of this intrinsic.
+    enum {
+      NoMem, ReadArgMem, ReadMem, WriteArgMem, WriteMem
+    } ModRef;
+
+    // This is set to true if the intrinsic is overloaded by its argument
+    // types.
+    bool isOverloaded;
+
+    CodeGenIntrinsic(Record *R, CodeGenTarget *CGT);
+  };
+
+  /// LoadIntrinsics - Read all of the intrinsics defined in the specified
+  /// .td file.
+  std::vector<CodeGenIntrinsic> LoadIntrinsics(const RecordKeeper &RC);
+}
+
+#endif