1 files changed, 0 insertions, 130 deletions

diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
deleted file mode 100644
index 2a76dcb1b082..000000000000
--- a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-//===- llvm/CodeGen/DwarfStringPool.cpp - Dwarf Debug Framework -----------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "DwarfStringPool.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCStreamer.h"
-#include <cassert>
-#include <utility>
-
-using namespace llvm;
-
-DwarfStringPool::DwarfStringPool(BumpPtrAllocator &A, AsmPrinter &Asm,
-                                 StringRef Prefix)
-    : Pool(A), Prefix(Prefix),
-      ShouldCreateSymbols(Asm.MAI->doesDwarfUseRelocationsAcrossSections()) {}
-
-StringMapEntry<DwarfStringPool::EntryTy> &
-DwarfStringPool::getEntryImpl(AsmPrinter &Asm, StringRef Str) {
-  auto I = Pool.insert(std::make_pair(Str, EntryTy()));
-  auto &Entry = I.first->second;
-  if (I.second) {
-    Entry.Index = EntryTy::NotIndexed;
-    Entry.Offset = NumBytes;
-    Entry.Symbol = ShouldCreateSymbols ? Asm.createTempSymbol(Prefix) : nullptr;
-
-    NumBytes += Str.size() + 1;
-    assert(NumBytes > Entry.Offset && "Unexpected overflow");
-  }
-  return *I.first;
-}
-
-DwarfStringPool::EntryRef DwarfStringPool::getEntry(AsmPrinter &Asm,
-                                                    StringRef Str) {
-  auto &MapEntry = getEntryImpl(Asm, Str);
-  return EntryRef(MapEntry, false);
-}
-
-DwarfStringPool::EntryRef DwarfStringPool::getIndexedEntry(AsmPrinter &Asm,
-                                                           StringRef Str) {
-  auto &MapEntry = getEntryImpl(Asm, Str);
-  if (!MapEntry.getValue().isIndexed())
-    MapEntry.getValue().Index = NumIndexedStrings++;
-  return EntryRef(MapEntry, true);
-}
-
-void DwarfStringPool::emitStringOffsetsTableHeader(AsmPrinter &Asm,
-                                                   MCSection *Section,
-                                                   MCSymbol *StartSym) {
-  if (getNumIndexedStrings() == 0)
-    return;
-  Asm.OutStreamer->SwitchSection(Section);
-  unsigned EntrySize = 4;
-  // FIXME: DWARF64
-  // We are emitting the header for a contribution to the string offsets
-  // table. The header consists of an entry with the contribution's
-  // size (not including the size of the length field), the DWARF version and
-  // 2 bytes of padding.
-  Asm.emitInt32(getNumIndexedStrings() * EntrySize + 4);
-  Asm.emitInt16(Asm.getDwarfVersion());
-  Asm.emitInt16(0);
-  // Define the symbol that marks the start of the contribution. It is
-  // referenced by most unit headers via DW_AT_str_offsets_base.
-  // Split units do not use the attribute.
-  if (StartSym)
-    Asm.OutStreamer->EmitLabel(StartSym);
-}
-
-void DwarfStringPool::emit(AsmPrinter &Asm, MCSection *StrSection,
-                           MCSection *OffsetSection, bool UseRelativeOffsets) {
-  if (Pool.empty())
-    return;
-
-  // Start the dwarf str section.
-  Asm.OutStreamer->SwitchSection(StrSection);
-
-  // Get all of the string pool entries and sort them by their offset.
-  SmallVector<const StringMapEntry<EntryTy> *, 64> Entries;
-  Entries.reserve(Pool.size());
-
-  for (const auto &E : Pool)
-    Entries.push_back(&E);
-
-  llvm::sort(Entries, [](const StringMapEntry<EntryTy> *A,
-                         const StringMapEntry<EntryTy> *B) {
-    return A->getValue().Offset < B->getValue().Offset;
-  });
-
-  for (const auto &Entry : Entries) {
-    assert(ShouldCreateSymbols == static_cast<bool>(Entry->getValue().Symbol) &&
-           "Mismatch between setting and entry");
-
-    // Emit a label for reference from debug information entries.
-    if (ShouldCreateSymbols)
-      Asm.OutStreamer->EmitLabel(Entry->getValue().Symbol);
-
-    // Emit the string itself with a terminating null byte.
-    Asm.OutStreamer->AddComment("string offset=" +
-                                Twine(Entry->getValue().Offset));
-    Asm.OutStreamer->EmitBytes(
-        StringRef(Entry->getKeyData(), Entry->getKeyLength() + 1));
-  }
-
-  // If we've got an offset section go ahead and emit that now as well.
-  if (OffsetSection) {
-    // Now only take the indexed entries and put them in an array by their ID so
-    // we can emit them in order.
-    Entries.resize(NumIndexedStrings);
-    for (const auto &Entry : Pool) {
-      if (Entry.getValue().isIndexed())
-        Entries[Entry.getValue().Index] = &Entry;
-    }
-
-    Asm.OutStreamer->SwitchSection(OffsetSection);
-    unsigned size = 4; // FIXME: DWARF64 is 8.
-    for (const auto &Entry : Entries)
-      if (UseRelativeOffsets)
-        Asm.emitDwarfStringOffset(Entry->getValue());
-      else
-        Asm.OutStreamer->EmitIntValue(Entry->getValue().Offset, size);
-  }
-}