Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/MC/MCParser/AsmLexer.h b/linux-x64/clang/include/llvm/MC/MCParser/AsmLexer.h
new file mode 100644
index 0000000..207183a
--- /dev/null
+++ b/linux-x64/clang/include/llvm/MC/MCParser/AsmLexer.h
@@ -0,0 +1,76 @@
+//===- AsmLexer.h - Lexer for Assembly Files --------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class declares the lexer for assembly files.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCPARSER_ASMLEXER_H
+#define LLVM_MC_MCPARSER_ASMLEXER_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/MC/MCParser/MCAsmLexer.h"
+#include <string>
+
+namespace llvm {
+
+class MCAsmInfo;
+
+/// AsmLexer - Lexer class for assembly files.
+class AsmLexer : public MCAsmLexer {
+ const MCAsmInfo &MAI;
+
+ const char *CurPtr = nullptr;
+ StringRef CurBuf;
+ bool IsAtStartOfLine = true;
+ bool IsAtStartOfStatement = true;
+ bool IsParsingMSInlineAsm = false;
+ bool IsPeeking = false;
+
+protected:
+ /// LexToken - Read the next token and return its code.
+ AsmToken LexToken() override;
+
+public:
+ AsmLexer(const MCAsmInfo &MAI);
+ AsmLexer(const AsmLexer &) = delete;
+ AsmLexer &operator=(const AsmLexer &) = delete;
+ ~AsmLexer() override;
+
+ void setBuffer(StringRef Buf, const char *ptr = nullptr);
+ void setParsingMSInlineAsm(bool V) { IsParsingMSInlineAsm = V; }
+
+ StringRef LexUntilEndOfStatement() override;
+
+ size_t peekTokens(MutableArrayRef<AsmToken> Buf,
+ bool ShouldSkipSpace = true) override;
+
+ const MCAsmInfo &getMAI() const { return MAI; }
+
+private:
+ bool isAtStartOfComment(const char *Ptr);
+ bool isAtStatementSeparator(const char *Ptr);
+ int getNextChar();
+ AsmToken ReturnError(const char *Loc, const std::string &Msg);
+
+ AsmToken LexIdentifier();
+ AsmToken LexSlash();
+ AsmToken LexLineComment();
+ AsmToken LexDigit();
+ AsmToken LexSingleQuote();
+ AsmToken LexQuote();
+ AsmToken LexFloatLiteral();
+ AsmToken LexHexFloatLiteral(bool NoIntDigits);
+
+ StringRef LexUntilEndOfLine();
+};
+
+} // end namespace llvm
+
+#endif // LLVM_MC_MCPARSER_ASMLEXER_H