1 files changed, 0 insertions, 222 deletions
diff --git a/llvm/lib/MC/MCCodeView.cpp b/llvm/lib/MC/MCCodeView.cpp
deleted file mode 100644
index 992edd0..0000000
--- a/llvm/lib/MC/MCCodeView.cpp
+++ /dev/null
@@ -1,222 +0,0 @@
-//===- MCCodeView.h - Machine Code CodeView support -------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Holds state from .cv_file and .cv_loc directives for later emission.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCCodeView.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/DebugInfo/CodeView/CodeView.h"
-#include "llvm/DebugInfo/CodeView/Line.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCObjectStreamer.h"
-#include "llvm/Support/COFF.h"
-
-using namespace llvm;
-using namespace llvm::codeview;
-
-CodeViewContext::CodeViewContext() {}
-
-CodeViewContext::~CodeViewContext() {
-  // If someone inserted strings into the string table but never actually
-  // emitted them somewhere, clean up the fragment.
-  if (!InsertedStrTabFragment)
-    delete StrTabFragment;
-}
-
-/// This is a valid number for use with .cv_loc if we've already seen a .cv_file
-/// for it.
-bool CodeViewContext::isValidFileNumber(unsigned FileNumber) const {
-  unsigned Idx = FileNumber - 1;
-  if (Idx < Filenames.size())
-    return !Filenames[Idx].empty();
-  return false;
-}
-
-bool CodeViewContext::addFile(unsigned FileNumber, StringRef Filename) {
-  assert(FileNumber > 0);
-  Filename = addToStringTable(Filename);
-  unsigned Idx = FileNumber - 1;
-  if (Idx >= Filenames.size())
-    Filenames.resize(Idx + 1);
-
-  if (Filename.empty())
-    Filename = "<stdin>";
-
-  if (!Filenames[Idx].empty())
-    return false;
-
-  // FIXME: We should store the string table offset of the filename, rather than
-  // the filename itself for efficiency.
-  Filename = addToStringTable(Filename);
-
-  Filenames[Idx] = Filename;
-  return true;
-}
-
-MCDataFragment *CodeViewContext::getStringTableFragment() {
-  if (!StrTabFragment) {
-    StrTabFragment = new MCDataFragment();
-    // Start a new string table out with a null byte.
-    StrTabFragment->getContents().push_back('\0');
-  }
-  return StrTabFragment;
-}
-
-StringRef CodeViewContext::addToStringTable(StringRef S) {
-  SmallVectorImpl<char> &Contents = getStringTableFragment()->getContents();
-  auto Insertion =
-      StringTable.insert(std::make_pair(S, unsigned(Contents.size())));
-  // Return the string from the table, since it is stable.
-  S = Insertion.first->first();
-  if (Insertion.second) {
-    // The string map key is always null terminated.
-    Contents.append(S.begin(), S.end() + 1);
-  }
-  return S;
-}
-
-unsigned CodeViewContext::getStringTableOffset(StringRef S) {
-  // A string table offset of zero is always the empty string.
-  if (S.empty())
-    return 0;
-  auto I = StringTable.find(S);
-  assert(I != StringTable.end());
-  return I->second;
-}
-
-void CodeViewContext::emitStringTable(MCObjectStreamer &OS) {
-  MCContext &Ctx = OS.getContext();
-  MCSymbol *StringBegin = Ctx.createTempSymbol("strtab_begin"),
-           *StringEnd = Ctx.createTempSymbol("strtab_end");
-
-  OS.EmitIntValue(unsigned(ModuleSubstreamKind::StringTable), 4);
-  OS.emitAbsoluteSymbolDiff(StringEnd, StringBegin, 4);
-  OS.EmitLabel(StringBegin);
-
-  // Put the string table data fragment here, if we haven't already put it
-  // somewhere else. If somebody wants two string tables in their .s file, one
-  // will just be empty.
-  if (!InsertedStrTabFragment) {
-    OS.insert(getStringTableFragment());
-    InsertedStrTabFragment = true;
-  }
-
-  OS.EmitValueToAlignment(4, 0);
-
-  OS.EmitLabel(StringEnd);
-}
-
-void CodeViewContext::emitFileChecksums(MCObjectStreamer &OS) {
-  MCContext &Ctx = OS.getContext();
-  MCSymbol *FileBegin = Ctx.createTempSymbol("filechecksums_begin"),
-           *FileEnd = Ctx.createTempSymbol("filechecksums_end");
-
-  OS.EmitIntValue(unsigned(ModuleSubstreamKind::FileChecksums), 4);
-  OS.emitAbsoluteSymbolDiff(FileEnd, FileBegin, 4);
-  OS.EmitLabel(FileBegin);
-
-  // Emit an array of FileChecksum entries. We index into this table using the
-  // user-provided file number. Each entry is currently 8 bytes, as we don't
-  // emit checksums.
-  for (StringRef Filename : Filenames) {
-    OS.EmitIntValue(getStringTableOffset(Filename), 4);
-    // Zero the next two fields and align back to 4 bytes. This indicates that
-    // no checksum is present.
-    OS.EmitIntValue(0, 4);
-  }
-
-  OS.EmitLabel(FileEnd);
-}
-
-void CodeViewContext::emitLineTableForFunction(MCObjectStreamer &OS,
-                                               unsigned FuncId,
-                                               const MCSymbol *FuncBegin,
-                                               const MCSymbol *FuncEnd) {
-  MCContext &Ctx = OS.getContext();
-  MCSymbol *LineBegin = Ctx.createTempSymbol("linetable_begin"),
-           *LineEnd = Ctx.createTempSymbol("linetable_end");
-
-  OS.EmitIntValue(unsigned(ModuleSubstreamKind::Lines), 4);
-  OS.emitAbsoluteSymbolDiff(LineEnd, LineBegin, 4);
-  OS.EmitLabel(LineBegin);
-  OS.EmitCOFFSecRel32(FuncBegin);
-  OS.EmitCOFFSectionIndex(FuncBegin);
-
-  // Actual line info.
-  ArrayRef<MCCVLineEntry> Locs = getFunctionLineEntries(FuncId);
-  bool HaveColumns = any_of(Locs, [](const MCCVLineEntry &LineEntry) {
-    return LineEntry.getColumn() != 0;
-  });
-  OS.EmitIntValue(HaveColumns ? int(codeview::LineFlags::HaveColumns) : 0, 2);
-  OS.emitAbsoluteSymbolDiff(FuncEnd, FuncBegin, 4);
-
-  for (auto I = Locs.begin(), E = Locs.end(); I != E;) {
-    // Emit a file segment for the run of locations that share a file id.
-    unsigned CurFileNum = I->getFileNum();
-    auto FileSegEnd =
-        std::find_if(I, E, [CurFileNum](const MCCVLineEntry &Loc) {
-          return Loc.getFileNum() != CurFileNum;
-        });
-    unsigned EntryCount = FileSegEnd - I;
-    OS.AddComment("Segment for file '" + Twine(Filenames[CurFileNum - 1]) +
-                  "' begins");
-    OS.EmitIntValue(8 * (CurFileNum - 1), 4);
-    OS.EmitIntValue(EntryCount, 4);
-    uint32_t SegmentSize = 12;
-    SegmentSize += 8 * EntryCount;
-    if (HaveColumns)
-      SegmentSize += 4 * EntryCount;
-    OS.EmitIntValue(SegmentSize, 4);
-
-    for (auto J = I; J != FileSegEnd; ++J) {
-      OS.emitAbsoluteSymbolDiff(J->getLabel(), FuncBegin, 4);
-      unsigned LineData = J->getLine();
-      if (J->isStmt())
-        LineData |= codeview::LineInfo::StatementFlag;
-      OS.EmitIntValue(LineData, 4);
-    }
-    if (HaveColumns) {
-      for (auto J = I; J != FileSegEnd; ++J) {
-        OS.EmitIntValue(J->getColumn(), 2);
-        OS.EmitIntValue(0, 2);
-      }
-    }
-    I = FileSegEnd;
-  }
-  OS.EmitLabel(LineEnd);
-}
-
-//
-// This is called when an instruction is assembled into the specified section
-// and if there is information from the last .cv_loc directive that has yet to have
-// a line entry made for it is made.
-//
-void MCCVLineEntry::Make(MCObjectStreamer *MCOS) {
-  if (!MCOS->getContext().getCVLocSeen())
-    return;
-
-  // Create a symbol at in the current section for use in the line entry.
-  MCSymbol *LineSym = MCOS->getContext().createTempSymbol();
-  // Set the value of the symbol to use for the MCCVLineEntry.
-  MCOS->EmitLabel(LineSym);
-
-  // Get the current .loc info saved in the context.
-  const MCCVLoc &CVLoc = MCOS->getContext().getCurrentCVLoc();
-
-  // Create a (local) line entry with the symbol and the current .loc info.
-  MCCVLineEntry LineEntry(LineSym, CVLoc);
-
-  // clear CVLocSeen saying the current .loc info is now used.
-  MCOS->getContext().clearCVLocSeen();
-
-  // Add the line entry to this section's entries.
-  MCOS->getContext().getCVContext().addLineEntry(LineEntry);
-}