1 files changed, 0 insertions, 106 deletions

diff --git a/contrib/llvm/lib/Support/Compression.cpp b/contrib/llvm/lib/Support/Compression.cpp
deleted file mode 100644
index 97d5ffaadf82..000000000000
--- a/contrib/llvm/lib/Support/Compression.cpp
+++ /dev/null
@@ -1,106 +0,0 @@
-//===--- Compression.cpp - Compression implementation ---------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file implements compression functions.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/Compression.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Config/config.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/Error.h"
-#include "llvm/Support/ErrorHandling.h"
-#if LLVM_ENABLE_ZLIB == 1 && HAVE_ZLIB_H
-#include <zlib.h>
-#endif
-
-using namespace llvm;
-
-#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
-static Error createError(StringRef Err) {
-  return make_error<StringError>(Err, inconvertibleErrorCode());
-}
-
-static StringRef convertZlibCodeToString(int Code) {
-  switch (Code) {
-  case Z_MEM_ERROR:
-    return "zlib error: Z_MEM_ERROR";
-  case Z_BUF_ERROR:
-    return "zlib error: Z_BUF_ERROR";
-  case Z_STREAM_ERROR:
-    return "zlib error: Z_STREAM_ERROR";
-  case Z_DATA_ERROR:
-    return "zlib error: Z_DATA_ERROR";
-  case Z_OK:
-  default:
-    llvm_unreachable("unknown or unexpected zlib status code");
-  }
-}
-
-bool zlib::isAvailable() { return true; }
-
-Error zlib::compress(StringRef InputBuffer,
-                     SmallVectorImpl<char> &CompressedBuffer, int Level) {
-  unsigned long CompressedSize = ::compressBound(InputBuffer.size());
-  CompressedBuffer.reserve(CompressedSize);
-  int Res =
-      ::compress2((Bytef *)CompressedBuffer.data(), &CompressedSize,
-                  (const Bytef *)InputBuffer.data(), InputBuffer.size(), Level);
-  // Tell MemorySanitizer that zlib output buffer is fully initialized.
-  // This avoids a false report when running LLVM with uninstrumented ZLib.
-  __msan_unpoison(CompressedBuffer.data(), CompressedSize);
-  CompressedBuffer.set_size(CompressedSize);
-  return Res ? createError(convertZlibCodeToString(Res)) : Error::success();
-}
-
-Error zlib::uncompress(StringRef InputBuffer, char *UncompressedBuffer,
-                       size_t &UncompressedSize) {
-  int Res =
-      ::uncompress((Bytef *)UncompressedBuffer, (uLongf *)&UncompressedSize,
-                   (const Bytef *)InputBuffer.data(), InputBuffer.size());
-  // Tell MemorySanitizer that zlib output buffer is fully initialized.
-  // This avoids a false report when running LLVM with uninstrumented ZLib.
-  __msan_unpoison(UncompressedBuffer, UncompressedSize);
-  return Res ? createError(convertZlibCodeToString(Res)) : Error::success();
-}
-
-Error zlib::uncompress(StringRef InputBuffer,
-                       SmallVectorImpl<char> &UncompressedBuffer,
-                       size_t UncompressedSize) {
-  UncompressedBuffer.resize(UncompressedSize);
-  Error E =
-      uncompress(InputBuffer, UncompressedBuffer.data(), UncompressedSize);
-  UncompressedBuffer.resize(UncompressedSize);
-  return E;
-}
-
-uint32_t zlib::crc32(StringRef Buffer) {
-  return ::crc32(0, (const Bytef *)Buffer.data(), Buffer.size());
-}
-
-#else
-bool zlib::isAvailable() { return false; }
-Error zlib::compress(StringRef InputBuffer,
-                     SmallVectorImpl<char> &CompressedBuffer, int Level) {
-  llvm_unreachable("zlib::compress is unavailable");
-}
-Error zlib::uncompress(StringRef InputBuffer, char *UncompressedBuffer,
-                       size_t &UncompressedSize) {
-  llvm_unreachable("zlib::uncompress is unavailable");
-}
-Error zlib::uncompress(StringRef InputBuffer,
-                       SmallVectorImpl<char> &UncompressedBuffer,
-                       size_t UncompressedSize) {
-  llvm_unreachable("zlib::uncompress is unavailable");
-}
-uint32_t zlib::crc32(StringRef Buffer) {
-  llvm_unreachable("zlib::crc32 is unavailable");
-}
-#endif