Revert "Random Number Generator (llvm)"

This reverts commit cccba093090d127e0b6d17473b14c264c14c5259.

It causes build breakage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211146 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 53 deletions

diff --git a/include/llvm/Support/RandomNumberGenerator.h b/include/llvm/Support/RandomNumberGenerator.h
deleted file mode 100644
index 84fcdcbc76..0000000000
--- a/include/llvm/Support/RandomNumberGenerator.h
+++ /dev/null
@@ -1,53 +0,0 @@
-//==- llvm/Support/RandomNumberGenerator.h - RNG for diversity ---*- C++ -*-==//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines an abstraction for random number generation (RNG).
-// Note that the current implementation is not cryptographically secure
-// as it uses the C++11 <random> facilities.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SUPPORT_RANDOMNUMBERGENERATOR_H_
-#define LLVM_SUPPORT_RANDOMNUMBERGENERATOR_H_
-
-#include "llvm/ADT/StringRef.h"
-#include <random>
-
-namespace llvm {
-
-/// A random number generator.
-/// Instances of this class should not be shared across threads.
-class RandomNumberGenerator {
-public:
-  /// Seeds and salts the underlying RNG engine. The salt of type StringRef
-  /// is passed into the constructor. The seed can be set on the command
-  /// line via -rng-seed=<uint64>.
-  /// The reason for the salt is to ensure different random streams even if
-  /// the same seed is used for multiple invocations of the compiler.
-  /// A good salt value should add additional entropy and be constant across
-  /// different machines (i.e., no paths) to allow for reproducible builds.
-  /// An instance of this class can be retrieved from the current Module.
-  /// \see Module::getRNG
-  RandomNumberGenerator(StringRef Salt);
-
-  /// Returns a random number in the range [0, Max).
-  uint64_t next(uint64_t Max);
-
-private:
-  // 64-bit Mersenne Twister by Matsumoto and Nishimura, 2000
-  // http://en.cppreference.com/w/cpp/numeric/random/mersenne_twister_engine
-  std::mt19937_64 Generator;
-
-  // Noncopyable.
-  RandomNumberGenerator(const RandomNumberGenerator &other) = delete;
-  RandomNumberGenerator &operator=(const RandomNumberGenerator &other) = delete;
-};
-}
-
-#endif