Move StringToOffsetTable into the TableGen include directory so I can use it in clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189567 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 1 insertions, 84 deletions

diff --git a/utils/TableGen/AsmMatcherEmitter.cpp b/utils/TableGen/AsmMatcherEmitter.cpp
index 468ce1c007..31c17fb3d6 100644
--- a/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/utils/TableGen/AsmMatcherEmitter.cpp
@@ -97,7 +97,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "CodeGenTarget.h"
-#include "StringToOffsetTable.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/ADT/PointerUnion.h"
 #include "llvm/ADT/STLExtras.h"
@@ -110,6 +109,7 @@
 #include "llvm/TableGen/Error.h"
 #include "llvm/TableGen/Record.h"
 #include "llvm/TableGen/StringMatcher.h"
+#include "llvm/TableGen/StringToOffsetTable.h"
 #include "llvm/TableGen/TableGenBackend.h"
 #include <cassert>
 #include <map>
diff --git a/utils/TableGen/StringToOffsetTable.h b/utils/TableGen/StringToOffsetTable.h
deleted file mode 100644
index d94d3a2668..0000000000
--- a/utils/TableGen/StringToOffsetTable.h
+++ /dev/null
@@ -1,83 +0,0 @@
-//===- 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 TBLGEN_STRING_TO_OFFSET_TABLE_H
-#define TBLGEN_STRING_TO_OFFSET_TABLE_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:
-  
-  unsigned GetOrAddStringOffset(StringRef Str, bool appendZero = true) {
-    StringMapEntry<unsigned> &Entry = StringOffset.GetOrCreateValue(Str, -1U);
-    if (Entry.getValue() == -1U) {
-      // Add the string to the aggregate if this is the first time found.
-      Entry.setValue(AggregateString.size());
-      AggregateString.append(Str.begin(), Str.end());
-      if (appendZero)
-        AggregateString += '\0';
-    }
-    
-    return Entry.getValue();
-  }
-  
-  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 << "\"";
-  }
-};
-
-} // end namespace llvm
-
-#endif