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diff --git a/contrib/llvm/lib/Target/PTX/PTXMachineFunctionInfo.h b/contrib/llvm/lib/Target/PTX/PTXMachineFunctionInfo.h
new file mode 100644
index 0000000..56d044b
--- /dev/null
+++ b/contrib/llvm/lib/Target/PTX/PTXMachineFunctionInfo.h
@@ -0,0 +1,79 @@
+//===- PTXMachineFuctionInfo.h - PTX machine function info -------*- C++ -*-==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares PTX-specific per-machine-function information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PTX_MACHINE_FUNCTION_INFO_H
+#define PTX_MACHINE_FUNCTION_INFO_H
+
+#include "PTX.h"
+#include "llvm/CodeGen/MachineFunction.h"
+
+namespace llvm {
+/// PTXMachineFunctionInfo - This class is derived from MachineFunction and
+/// contains private PTX target-specific information for each MachineFunction.
+///
+class PTXMachineFunctionInfo : public MachineFunctionInfo {
+private:
+  bool is_kernel;
+  std::vector<unsigned> reg_arg, reg_local_var;
+  unsigned reg_ret;
+  bool _isDoneAddArg;
+
+public:
+  PTXMachineFunctionInfo(MachineFunction &MF)
+    : is_kernel(false), reg_ret(PTX::NoRegister), _isDoneAddArg(false) {
+      reg_arg.reserve(8);
+      reg_local_var.reserve(32);
+    }
+
+  void setKernel(bool _is_kernel=true) { is_kernel = _is_kernel; }
+
+  void addArgReg(unsigned reg) { reg_arg.push_back(reg); }
+  void addLocalVarReg(unsigned reg) { reg_local_var.push_back(reg); }
+  void setRetReg(unsigned reg) { reg_ret = reg; }
+
+  void doneAddArg(void) {
+    std::sort(reg_arg.begin(), reg_arg.end());
+    _isDoneAddArg = true;
+  }
+  void doneAddLocalVar(void) {
+    std::sort(reg_local_var.begin(), reg_local_var.end());
+  }
+
+  bool isDoneAddArg(void) { return _isDoneAddArg; }
+
+  bool isKernel() const { return is_kernel; }
+
+  typedef std::vector<unsigned>::const_iterator reg_iterator;
+
+  bool argRegEmpty() const { return reg_arg.empty(); }
+  int getNumArg() const { return reg_arg.size(); }
+  reg_iterator argRegBegin() const { return reg_arg.begin(); }
+  reg_iterator argRegEnd()   const { return reg_arg.end(); }
+
+  bool localVarRegEmpty() const { return reg_local_var.empty(); }
+  reg_iterator localVarRegBegin() const { return reg_local_var.begin(); }
+  reg_iterator localVarRegEnd()   const { return reg_local_var.end(); }
+
+  unsigned retReg() const { return reg_ret; }
+
+  bool isArgReg(unsigned reg) const {
+    return std::binary_search(reg_arg.begin(), reg_arg.end(), reg);
+  }
+
+  bool isLocalVarReg(unsigned reg) const {
+    return std::binary_search(reg_local_var.begin(), reg_local_var.end(), reg);
+  }
+}; // class PTXMachineFunctionInfo
+} // namespace llvm
+
+#endif // PTX_MACHINE_FUNCTION_INFO_H