1 files changed, 0 insertions, 155 deletions
diff --git a/third-party/benchmark/src/mutex.h b/third-party/benchmark/src/mutex.h
deleted file mode 100644
index 9cc414ec467e..000000000000
--- a/third-party/benchmark/src/mutex.h
+++ /dev/null
@@ -1,155 +0,0 @@
-#ifndef BENCHMARK_MUTEX_H_
-#define BENCHMARK_MUTEX_H_
-
-#include <condition_variable>
-#include <mutex>
-
-#include "check.h"
-
-// Enable thread safety attributes only with clang.
-// The attributes can be safely erased when compiling with other compilers.
-#if defined(HAVE_THREAD_SAFETY_ATTRIBUTES)
-#define THREAD_ANNOTATION_ATTRIBUTE_(x) __attribute__((x))
-#else
-#define THREAD_ANNOTATION_ATTRIBUTE_(x)  // no-op
-#endif
-
-#define CAPABILITY(x) THREAD_ANNOTATION_ATTRIBUTE_(capability(x))
-
-#define SCOPED_CAPABILITY THREAD_ANNOTATION_ATTRIBUTE_(scoped_lockable)
-
-#define GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE_(guarded_by(x))
-
-#define PT_GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE_(pt_guarded_by(x))
-
-#define ACQUIRED_BEFORE(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(acquired_before(__VA_ARGS__))
-
-#define ACQUIRED_AFTER(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(acquired_after(__VA_ARGS__))
-
-#define REQUIRES(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(requires_capability(__VA_ARGS__))
-
-#define REQUIRES_SHARED(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(requires_shared_capability(__VA_ARGS__))
-
-#define ACQUIRE(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(acquire_capability(__VA_ARGS__))
-
-#define ACQUIRE_SHARED(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(acquire_shared_capability(__VA_ARGS__))
-
-#define RELEASE(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(release_capability(__VA_ARGS__))
-
-#define RELEASE_SHARED(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(release_shared_capability(__VA_ARGS__))
-
-#define TRY_ACQUIRE(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(try_acquire_capability(__VA_ARGS__))
-
-#define TRY_ACQUIRE_SHARED(...) \
-  THREAD_ANNOTATION_ATTRIBUTE_(try_acquire_shared_capability(__VA_ARGS__))
-
-#define EXCLUDES(...) THREAD_ANNOTATION_ATTRIBUTE_(locks_excluded(__VA_ARGS__))
-
-#define ASSERT_CAPABILITY(x) THREAD_ANNOTATION_ATTRIBUTE_(assert_capability(x))
-
-#define ASSERT_SHARED_CAPABILITY(x) \
-  THREAD_ANNOTATION_ATTRIBUTE_(assert_shared_capability(x))
-
-#define RETURN_CAPABILITY(x) THREAD_ANNOTATION_ATTRIBUTE_(lock_returned(x))
-
-#define NO_THREAD_SAFETY_ANALYSIS \
-  THREAD_ANNOTATION_ATTRIBUTE_(no_thread_safety_analysis)
-
-namespace benchmark {
-
-typedef std::condition_variable Condition;
-
-// NOTE: Wrappers for std::mutex and std::unique_lock are provided so that
-// we can annotate them with thread safety attributes and use the
-// -Wthread-safety warning with clang. The standard library types cannot be
-// used directly because they do not provide the required annotations.
-class CAPABILITY("mutex") Mutex {
- public:
-  Mutex() {}
-
-  void lock() ACQUIRE() { mut_.lock(); }
-  void unlock() RELEASE() { mut_.unlock(); }
-  std::mutex& native_handle() { return mut_; }
-
- private:
-  std::mutex mut_;
-};
-
-class SCOPED_CAPABILITY MutexLock {
-  typedef std::unique_lock<std::mutex> MutexLockImp;
-
- public:
-  MutexLock(Mutex& m) ACQUIRE(m) : ml_(m.native_handle()) {}
-  ~MutexLock() RELEASE() {}
-  MutexLockImp& native_handle() { return ml_; }
-
- private:
-  MutexLockImp ml_;
-};
-
-class Barrier {
- public:
-  Barrier(int num_threads) : running_threads_(num_threads) {}
-
-  // Called by each thread
-  bool wait() EXCLUDES(lock_) {
-    bool last_thread = false;
-    {
-      MutexLock ml(lock_);
-      last_thread = createBarrier(ml);
-    }
-    if (last_thread) phase_condition_.notify_all();
-    return last_thread;
-  }
-
-  void removeThread() EXCLUDES(lock_) {
-    MutexLock ml(lock_);
-    --running_threads_;
-    if (entered_ != 0) phase_condition_.notify_all();
-  }
-
- private:
-  Mutex lock_;
-  Condition phase_condition_;
-  int running_threads_;
-
-  // State for barrier management
-  int phase_number_ = 0;
-  int entered_ = 0;  // Number of threads that have entered this barrier
-
-  // Enter the barrier and wait until all other threads have also
-  // entered the barrier.  Returns iff this is the last thread to
-  // enter the barrier.
-  bool createBarrier(MutexLock& ml) REQUIRES(lock_) {
-    CHECK_LT(entered_, running_threads_);
-    entered_++;
-    if (entered_ < running_threads_) {
-      // Wait for all threads to enter
-      int phase_number_cp = phase_number_;
-      auto cb = [this, phase_number_cp]() {
-        return this->phase_number_ > phase_number_cp ||
-               entered_ == running_threads_;  // A thread has aborted in error
-      };
-      phase_condition_.wait(ml.native_handle(), cb);
-      if (phase_number_ > phase_number_cp) return false;
-      // else (running_threads_ == entered_) and we are the last thread.
-    }
-    // Last thread has reached the barrier
-    phase_number_++;
-    entered_ = 0;
-    return true;
-  }
-};
-
-}  // end namespace benchmark
-
-#endif  // BENCHMARK_MUTEX_H_