4 files changed, 0 insertions, 241 deletions
diff --git a/llvm/lib/Support/CMakeLists.txt b/llvm/lib/Support/CMakeLists.txt
index d8ecfa9b862..5b14c828db0 100644
--- a/llvm/lib/Support/CMakeLists.txt
+++ b/llvm/lib/Support/CMakeLists.txt
@@ -45,7 +45,6 @@ add_llvm_library(LLVMSupport
   ConvertUTFWrapper.cpp
   CrashRecoveryContext.cpp
   DataExtractor.cpp
-  DataStream.cpp
   Debug.cpp
   DeltaAlgorithm.cpp
   DAGDeltaAlgorithm.cpp
@@ -69,7 +68,6 @@ add_llvm_library(LLVMSupport
   ManagedStatic.cpp
   MathExtras.cpp
   MemoryBuffer.cpp
-  MemoryObject.cpp
   MD5.cpp
   NativeFormatting.cpp
   Options.cpp
@@ -85,7 +83,6 @@ add_llvm_library(LLVMSupport
   SourceMgr.cpp
   SpecialCaseList.cpp
   Statistic.cpp
-  StreamingMemoryObject.cpp
   StringExtras.cpp
   StringMap.cpp
   StringPool.cpp
diff --git a/llvm/lib/Support/DataStream.cpp b/llvm/lib/Support/DataStream.cpp
deleted file mode 100644
index 3b10fc5eeca..00000000000
--- a/llvm/lib/Support/DataStream.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-//===--- llvm/Support/DataStream.cpp - Lazy streamed data -----------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements DataStreamer, which fetches bytes of Data from
-// a stream source. It provides support for streaming (lazy reading) of
-// bitcode. An example implementation of streaming from a file or stdin
-// is included.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/DataStream.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Program.h"
-#include <string>
-#include <system_error>
-#if !defined(_MSC_VER) && !defined(__MINGW32__)
-#include <unistd.h>
-#else
-#include <io.h>
-#endif
-using namespace llvm;
-
-#define DEBUG_TYPE "Data-stream"
-
-// Interface goals:
-// * StreamingMemoryObject doesn't care about complexities like using
-//   threads/async callbacks to actually overlap download+compile
-// * Don't want to duplicate Data in memory
-// * Don't need to know total Data len in advance
-// Non-goals:
-// StreamingMemoryObject already has random access so this interface only does
-// in-order streaming (no arbitrary seeking, else we'd have to buffer all the
-// Data here in addition to MemoryObject).  This also means that if we want
-// to be able to to free Data, BitstreamBytes/BitcodeReader will implement it
-
-STATISTIC(NumStreamFetches, "Number of calls to Data stream fetch");
-
-namespace llvm {
-DataStreamer::~DataStreamer() {}
-}
-
-namespace {
-
-// Very simple stream backed by a file. Mostly useful for stdin and debugging;
-// actual file access is probably still best done with mmap.
-class DataFileStreamer : public DataStreamer {
- int Fd;
-public:
-  DataFileStreamer() : Fd(0) {}
-  ~DataFileStreamer() override { close(Fd); }
-  size_t GetBytes(unsigned char *buf, size_t len) override {
-    NumStreamFetches++;
-    return read(Fd, buf, len);
-  }
-
-  std::error_code OpenFile(const std::string &Filename) {
-    if (Filename == "-") {
-      Fd = 0;
-      sys::ChangeStdinToBinary();
-      return std::error_code();
-    }
-
-    return sys::fs::openFileForRead(Filename, Fd);
-  }
-};
-
-}
-
-std::unique_ptr<DataStreamer>
-llvm::getDataFileStreamer(const std::string &Filename, std::string *StrError) {
-  std::unique_ptr<DataFileStreamer> s = make_unique<DataFileStreamer>();
-  if (std::error_code e = s->OpenFile(Filename)) {
-    *StrError = std::string("Could not open ") + Filename + ": " +
-        e.message() + "\n";
-    return nullptr;
-  }
-  return std::move(s);
-}
diff --git a/llvm/lib/Support/MemoryObject.cpp b/llvm/lib/Support/MemoryObject.cpp
deleted file mode 100644
index d796acfa90e..00000000000
--- a/llvm/lib/Support/MemoryObject.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-//===- MemoryObject.cpp - Abstract memory interface -----------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/MemoryObject.h"
-using namespace llvm;
-  
-MemoryObject::~MemoryObject() {
-}
diff --git a/llvm/lib/Support/StreamingMemoryObject.cpp b/llvm/lib/Support/StreamingMemoryObject.cpp
deleted file mode 100644
index fb566179486..00000000000
--- a/llvm/lib/Support/StreamingMemoryObject.cpp
+++ /dev/null
@@ -1,138 +0,0 @@
-//===- StreamingMemoryObject.cpp - Streamable data interface -------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/StreamingMemoryObject.h"
-#include <cassert>
-#include <cstddef>
-#include <cstring>
-using namespace llvm;
-
-namespace {
-
-class RawMemoryObject : public MemoryObject {
-public:
-  RawMemoryObject(const unsigned char *Start, const unsigned char *End) :
-    FirstChar(Start), LastChar(End) {
-    assert(LastChar >= FirstChar && "Invalid start/end range");
-  }
-
-  uint64_t getExtent() const override {
-    return LastChar - FirstChar;
-  }
-  uint64_t readBytes(uint8_t *Buf, uint64_t Size,
-                     uint64_t Address) const override;
-  const uint8_t *getPointer(uint64_t address, uint64_t size) const override;
-  bool isValidAddress(uint64_t address) const override {
-    return validAddress(address);
-  }
-
-private:
-  const uint8_t* const FirstChar;
-  const uint8_t* const LastChar;
-
-  // These are implemented as inline functions here to avoid multiple virtual
-  // calls per public function
-  bool validAddress(uint64_t address) const {
-    return static_cast<std::ptrdiff_t>(address) < LastChar - FirstChar;
-  }
-
-  RawMemoryObject(const RawMemoryObject&) = delete;
-  void operator=(const RawMemoryObject&) = delete;
-};
-
-uint64_t RawMemoryObject::readBytes(uint8_t *Buf, uint64_t Size,
-                                    uint64_t Address) const {
-  uint64_t BufferSize = LastChar - FirstChar;
-  if (Address >= BufferSize)
-    return 0;
-
-  uint64_t End = Address + Size;
-  if (End > BufferSize)
-    End = BufferSize;
-
-  assert(static_cast<int64_t>(End - Address) >= 0);
-  Size = End - Address;
-  memcpy(Buf, Address + FirstChar, Size);
-  return Size;
-}
-
-const uint8_t *RawMemoryObject::getPointer(uint64_t address,
-                                           uint64_t size) const {
-  return FirstChar + address;
-}
-} // anonymous namespace
-
-namespace llvm {
-// If the bitcode has a header, then its size is known, and we don't have to
-// block until we actually want to read it.
-bool StreamingMemoryObject::isValidAddress(uint64_t address) const {
-  if (ObjectSize && address < ObjectSize) return true;
-  return fetchToPos(address);
-}
-
-uint64_t StreamingMemoryObject::getExtent() const {
-  if (ObjectSize) return ObjectSize;
-  size_t pos = BytesRead + kChunkSize;
-  // keep fetching until we run out of bytes
-  while (fetchToPos(pos)) pos += kChunkSize;
-  return ObjectSize;
-}
-
-uint64_t StreamingMemoryObject::readBytes(uint8_t *Buf, uint64_t Size,
-                                          uint64_t Address) const {
-  fetchToPos(Address + Size - 1);
-  // Note: For wrapped bitcode files will set ObjectSize after the
-  // first call to fetchToPos. In such cases, ObjectSize can be
-  // smaller than BytesRead.
-  size_t MaxAddress =
-      (ObjectSize && ObjectSize < BytesRead) ? ObjectSize : BytesRead;
-  if (Address >= MaxAddress)
-    return 0;
-
-  uint64_t End = Address + Size;
-  if (End > MaxAddress)
-    End = MaxAddress;
-  assert(End >= Address);
-  Size = End - Address;
-  memcpy(Buf, &Bytes[Address + BytesSkipped], Size);
-  return Size;
-}
-
-const uint8_t *StreamingMemoryObject::getPointer(uint64_t Address,
-                                                 uint64_t Size) const {
-  fetchToPos(Address + Size - 1);
-  return &Bytes[Address + BytesSkipped];
-}
-
-bool StreamingMemoryObject::dropLeadingBytes(size_t s) {
-  if (BytesRead < s) return true;
-  BytesSkipped = s;
-  BytesRead -= s;
-  return false;
-}
-
-void StreamingMemoryObject::setKnownObjectSize(size_t size) {
-  ObjectSize = size;
-  Bytes.reserve(size);
-  if (ObjectSize <= BytesRead)
-    EOFReached = true;
-}
-
-MemoryObject *getNonStreamedMemoryObject(const unsigned char *Start,
-                                         const unsigned char *End) {
-  return new RawMemoryObject(Start, End);
-}
-
-StreamingMemoryObject::StreamingMemoryObject(
-    std::unique_ptr<DataStreamer> Streamer)
-    : Bytes(kChunkSize), Streamer(std::move(Streamer)), BytesRead(0),
-      BytesSkipped(0), ObjectSize(0), EOFReached(false) {
-  BytesRead = this->Streamer->GetBytes(&Bytes[0], kChunkSize);
-}
-}