1 files changed, 0 insertions, 84 deletions

diff --git a/contrib/llvm/lib/Support/RandomNumberGenerator.cpp b/contrib/llvm/lib/Support/RandomNumberGenerator.cpp
deleted file mode 100644
index 09fad1979985..000000000000
--- a/contrib/llvm/lib/Support/RandomNumberGenerator.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-//===-- RandomNumberGenerator.cpp - Implement RNG class -------------------===//
-//
-// 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 deterministic random number generation (RNG).
-// The current implementation is NOT cryptographically secure as it uses
-// the C++11 <random> facilities.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/RandomNumberGenerator.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/raw_ostream.h"
-#ifdef _WIN32
-#include "Windows/WindowsSupport.h"
-#else
-#include "Unix/Unix.h"
-#endif
-
-using namespace llvm;
-
-#define DEBUG_TYPE "rng"
-
-static cl::opt<uint64_t> Seed("rng-seed", cl::value_desc("seed"), cl::Hidden,
-                              cl::desc("Seed for the random number generator"),
-                              cl::init(0));
-
-RandomNumberGenerator::RandomNumberGenerator(StringRef Salt) {
-  LLVM_DEBUG(if (Seed == 0) dbgs()
-             << "Warning! Using unseeded random number generator.\n");
-
-  // Combine seed and salts using std::seed_seq.
-  // Data: Seed-low, Seed-high, Salt
-  // Note: std::seed_seq can only store 32-bit values, even though we
-  // are using a 64-bit RNG. This isn't a problem since the Mersenne
-  // twister constructor copies these correctly into its initial state.
-  std::vector<uint32_t> Data;
-  Data.resize(2 + Salt.size());
-  Data[0] = Seed;
-  Data[1] = Seed >> 32;
-
-  llvm::copy(Salt, Data.begin() + 2);
-
-  std::seed_seq SeedSeq(Data.begin(), Data.end());
-  Generator.seed(SeedSeq);
-}
-
-RandomNumberGenerator::result_type RandomNumberGenerator::operator()() {
-  return Generator();
-}
-
-// Get random vector of specified size
-std::error_code llvm::getRandomBytes(void *Buffer, size_t Size) {
-#ifdef _WIN32
-  HCRYPTPROV hProvider;
-  if (CryptAcquireContext(&hProvider, 0, 0, PROV_RSA_FULL,
-                           CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
-    ScopedCryptContext ScopedHandle(hProvider);
-    if (CryptGenRandom(hProvider, Size, static_cast<BYTE *>(Buffer)))
-      return std::error_code();
-  }
-  return std::error_code(GetLastError(), std::system_category());
-#else
-  int Fd = open("/dev/urandom", O_RDONLY);
-  if (Fd != -1) {
-    std::error_code Ret;
-    ssize_t BytesRead = read(Fd, Buffer, Size);
-    if (BytesRead == -1)
-      Ret = std::error_code(errno, std::system_category());
-    else if (BytesRead != static_cast<ssize_t>(Size))
-      Ret = std::error_code(EIO, std::system_category());
-    if (close(Fd) == -1)
-      Ret = std::error_code(errno, std::system_category());
-
-    return Ret;
-  }
-  return std::error_code(errno, std::system_category());
-#endif
-}