Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/TableGen/StringToOffsetTable.h b/linux-x64/clang/include/llvm/TableGen/StringToOffsetTable.h
new file mode 100644
index 0000000..4b11e88
--- /dev/null
+++ b/linux-x64/clang/include/llvm/TableGen/StringToOffsetTable.h
@@ -0,0 +1,105 @@
+//===- StringToOffsetTable.h - Emit a big concatenated string ---*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TABLEGEN_STRINGTOOFFSETTABLE_H
+#define LLVM_TABLEGEN_STRINGTOOFFSETTABLE_H
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cctype>
+
+namespace llvm {
+
+/// StringToOffsetTable - This class uniques a bunch of nul-terminated strings
+/// and keeps track of their offset in a massive contiguous string allocation.
+/// It can then output this string blob and use indexes into the string to
+/// reference each piece.
+class StringToOffsetTable {
+ StringMap<unsigned> StringOffset;
+ std::string AggregateString;
+
+public:
+ bool Empty() const { return StringOffset.empty(); }
+
+ unsigned GetOrAddStringOffset(StringRef Str, bool appendZero = true) {
+ auto IterBool =
+ StringOffset.insert(std::make_pair(Str, AggregateString.size()));
+ if (IterBool.second) {
+ // Add the string to the aggregate if this is the first time found.
+ AggregateString.append(Str.begin(), Str.end());
+ if (appendZero)
+ AggregateString += '\0';
+ }
+
+ return IterBool.first->second;
+ }
+
+ void EmitString(raw_ostream &O) {
+ // Escape the string.
+ SmallString<256> Str;
+ raw_svector_ostream(Str).write_escaped(AggregateString);
+ AggregateString = Str.str();
+
+ O << " \"";
+ unsigned CharsPrinted = 0;
+ for (unsigned i = 0, e = AggregateString.size(); i != e; ++i) {
+ if (CharsPrinted > 70) {
+ O << "\"\n \"";
+ CharsPrinted = 0;
+ }
+ O << AggregateString[i];
+ ++CharsPrinted;
+
+ // Print escape sequences all together.
+ if (AggregateString[i] != '\\')
+ continue;
+
+ assert(i + 1 < AggregateString.size() && "Incomplete escape sequence!");
+ if (isdigit(AggregateString[i + 1])) {
+ assert(isdigit(AggregateString[i + 2]) &&
+ isdigit(AggregateString[i + 3]) &&
+ "Expected 3 digit octal escape!");
+ O << AggregateString[++i];
+ O << AggregateString[++i];
+ O << AggregateString[++i];
+ CharsPrinted += 3;
+ } else {
+ O << AggregateString[++i];
+ ++CharsPrinted;
+ }
+ }
+ O << "\"";
+ }
+
+ /// Emit the string using character literals. MSVC has a limitation that
+ /// string literals cannot be longer than 64K.
+ void EmitCharArray(raw_ostream &O) {
+ assert(AggregateString.find(')') == std::string::npos &&
+ "can't emit raw string with closing parens");
+ int Count = 0;
+ O << ' ';
+ for (char C : AggregateString) {
+ O << " \'";
+ O.write_escaped(StringRef(&C, 1));
+ O << "\',";
+ Count++;
+ if (Count > 14) {
+ O << "\n ";
+ Count = 0;
+ }
+ }
+ O << '\n';
+ }
+};
+
+} // end namespace llvm
+
+#endif