Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/IRReader/IRReader.h b/linux-x64/clang/include/llvm/IRReader/IRReader.h
new file mode 100644
index 0000000..bedde89
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+++ b/linux-x64/clang/include/llvm/IRReader/IRReader.h
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+//===---- llvm/IRReader/IRReader.h - Reader for LLVM IR files ---*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines functions for reading LLVM IR. They support both
+// Bitcode and Assembly, automatically detecting the input format.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IRREADER_IRREADER_H
+#define LLVM_IRREADER_IRREADER_H
+
+#include "llvm/ADT/StringRef.h"
+#include <memory>
+
+namespace llvm {
+
+class StringRef;
+class MemoryBufferRef;
+class Module;
+class SMDiagnostic;
+class LLVMContext;
+
+/// If the given file holds a bitcode image, return a Module
+/// for it which does lazy deserialization of function bodies. Otherwise,
+/// attempt to parse it as LLVM Assembly and return a fully populated
+/// Module. The ShouldLazyLoadMetadata flag is passed down to the bitcode
+/// reader to optionally enable lazy metadata loading.
+std::unique_ptr<Module>
+getLazyIRFileModule(StringRef Filename, SMDiagnostic &Err, LLVMContext &Context,
+ bool ShouldLazyLoadMetadata = false);
+
+/// If the given MemoryBuffer holds a bitcode image, return a Module
+/// for it. Otherwise, attempt to parse it as LLVM Assembly and return
+/// a Module for it.
+/// \param UpgradeDebugInfo Run UpgradeDebugInfo, which runs the Verifier.
+/// This option should only be set to false by llvm-as
+/// for use inside the LLVM testuite!
+/// \param DataLayoutString Override datalayout in the llvm assembly.
+std::unique_ptr<Module> parseIR(MemoryBufferRef Buffer, SMDiagnostic &Err,
+ LLVMContext &Context,
+ bool UpgradeDebugInfo = true,
+ StringRef DataLayoutString = "");
+
+/// If the given file holds a bitcode image, return a Module for it.
+/// Otherwise, attempt to parse it as LLVM Assembly and return a Module
+/// for it.
+/// \param UpgradeDebugInfo Run UpgradeDebugInfo, which runs the Verifier.
+/// This option should only be set to false by llvm-as
+/// for use inside the LLVM testuite!
+/// \param DataLayoutString Override datalayout in the llvm assembly.
+std::unique_ptr<Module> parseIRFile(StringRef Filename, SMDiagnostic &Err,
+ LLVMContext &Context,
+ bool UpgradeDebugInfo = true,
+ StringRef DataLayoutString = "");
+}
+
+#endif