Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/ExecutionEngine/GenericValue.h b/linux-x64/clang/include/llvm/ExecutionEngine/GenericValue.h
new file mode 100644
index 0000000..504e30a
--- /dev/null
+++ b/linux-x64/clang/include/llvm/ExecutionEngine/GenericValue.h
@@ -0,0 +1,55 @@
+//===- GenericValue.h - Represent any type of LLVM value --------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// The GenericValue class is used to represent an LLVM value of arbitrary type.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_EXECUTIONENGINE_GENERICVALUE_H
+#define LLVM_EXECUTIONENGINE_GENERICVALUE_H
+
+#include "llvm/ADT/APInt.h"
+#include <vector>
+
+namespace llvm {
+
+using PointerTy = void *;
+
+struct GenericValue {
+  struct IntPair {
+    unsigned int first;
+    unsigned int second;
+  };
+  union {
+    double DoubleVal;
+    float FloatVal;
+    PointerTy PointerVal;
+    struct IntPair UIntPairVal;
+    unsigned char Untyped[8];
+  };
+  APInt IntVal; // also used for long doubles.
+  // For aggregate data types.
+  std::vector<GenericValue> AggregateVal;
+
+  // to make code faster, set GenericValue to zero could be omitted, but it is
+  // potentially can cause problems, since GenericValue to store garbage
+  // instead of zero.
+  GenericValue() : IntVal(1, 0) {
+    UIntPairVal.first = 0;
+    UIntPairVal.second = 0;
+  }
+  explicit GenericValue(void *V) : PointerVal(V), IntVal(1, 0) {}
+};
+
+inline GenericValue PTOGV(void *P) { return GenericValue(P); }
+inline void *GVTOP(const GenericValue &GV) { return GV.PointerVal; }
+
+} // end namespace llvm
+
+#endif // LLVM_EXECUTIONENGINE_GENERICVALUE_H